./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/weaver/popl20-more-multiply-verify.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 4fc63b2a Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7d5d62a-912a-43dd-b10e-f276c288467a/bin/utaipan-verify-DbMuA5NWw2/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7d5d62a-912a-43dd-b10e-f276c288467a/bin/utaipan-verify-DbMuA5NWw2/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7d5d62a-912a-43dd-b10e-f276c288467a/bin/utaipan-verify-DbMuA5NWw2/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7d5d62a-912a-43dd-b10e-f276c288467a/bin/utaipan-verify-DbMuA5NWw2/config/TaipanReach.xml -i ../../sv-benchmarks/c/weaver/popl20-more-multiply-verify.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7d5d62a-912a-43dd-b10e-f276c288467a/bin/utaipan-verify-DbMuA5NWw2/config/svcomp-Overflow-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7d5d62a-912a-43dd-b10e-f276c288467a/bin/utaipan-verify-DbMuA5NWw2 --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 d79cb5dae664e13779624ff0ffbc531b419f89e2c7510a92e890992a52ee7c98 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4fc63b2 [2024-11-02 11:23:47,737 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-02 11:23:47,829 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7d5d62a-912a-43dd-b10e-f276c288467a/bin/utaipan-verify-DbMuA5NWw2/config/svcomp-Overflow-32bit-Taipan_Default.epf [2024-11-02 11:23:47,836 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-02 11:23:47,837 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-02 11:23:47,884 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-02 11:23:47,884 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-02 11:23:47,885 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-02 11:23:47,886 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-02 11:23:47,888 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-02 11:23:47,889 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-02 11:23:47,889 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-02 11:23:47,890 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-02 11:23:47,891 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-02 11:23:47,895 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-02 11:23:47,896 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-02 11:23:47,896 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-02 11:23:47,897 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-02 11:23:47,897 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-02 11:23:47,897 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-02 11:23:47,898 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-02 11:23:47,898 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-02 11:23:47,900 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-02 11:23:47,901 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-02 11:23:47,902 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-02 11:23:47,902 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-02 11:23:47,903 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-02 11:23:47,903 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-02 11:23:47,903 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-02 11:23:47,904 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-02 11:23:47,905 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-02 11:23:47,905 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-02 11:23:47,906 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-02 11:23:47,916 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-02 11:23:47,917 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-02 11:23:47,917 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-02 11:23:47,917 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-02 11:23:47,918 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-02 11:23:47,918 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-02 11:23:47,918 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-02 11:23:47,919 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-02 11:23:47,919 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-02 11:23:47,920 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-02 11:23:47,920 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-02 11:23:47,920 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-02 11:23:47,921 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-02 11:23:47,921 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-02 11:23:47,921 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-02 11:23:47,922 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-02 11:23:47,922 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_d7d5d62a-912a-43dd-b10e-f276c288467a/bin/utaipan-verify-DbMuA5NWw2/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7d5d62a-912a-43dd-b10e-f276c288467a/bin/utaipan-verify-DbMuA5NWw2 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d79cb5dae664e13779624ff0ffbc531b419f89e2c7510a92e890992a52ee7c98 [2024-11-02 11:23:48,229 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-02 11:23:48,262 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-02 11:23:48,266 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-02 11:23:48,268 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-02 11:23:48,269 INFO L274 PluginConnector]: CDTParser initialized [2024-11-02 11:23:48,270 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7d5d62a-912a-43dd-b10e-f276c288467a/bin/utaipan-verify-DbMuA5NWw2/../../sv-benchmarks/c/weaver/popl20-more-multiply-verify.wvr.c Unable to find full path for "g++" [2024-11-02 11:23:50,403 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-02 11:23:50,672 INFO L384 CDTParser]: Found 1 translation units. [2024-11-02 11:23:50,673 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7d5d62a-912a-43dd-b10e-f276c288467a/sv-benchmarks/c/weaver/popl20-more-multiply-verify.wvr.c [2024-11-02 11:23:50,683 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7d5d62a-912a-43dd-b10e-f276c288467a/bin/utaipan-verify-DbMuA5NWw2/data/44d5f32f8/c68493cef0eb430ab507be6c3736ad3d/FLAGfcb39ac39 [2024-11-02 11:23:50,705 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7d5d62a-912a-43dd-b10e-f276c288467a/bin/utaipan-verify-DbMuA5NWw2/data/44d5f32f8/c68493cef0eb430ab507be6c3736ad3d [2024-11-02 11:23:50,708 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-02 11:23:50,711 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-02 11:23:50,713 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-02 11:23:50,715 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-02 11:23:50,721 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-02 11:23:50,722 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 11:23:50" (1/1) ... [2024-11-02 11:23:50,723 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@36fdf012 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:23:50, skipping insertion in model container [2024-11-02 11:23:50,723 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 11:23:50" (1/1) ... [2024-11-02 11:23:50,761 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-02 11:23:51,056 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-02 11:23:51,072 INFO L200 MainTranslator]: Completed pre-run [2024-11-02 11:23:51,112 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-02 11:23:51,134 INFO L204 MainTranslator]: Completed translation [2024-11-02 11:23:51,135 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:23:51 WrapperNode [2024-11-02 11:23:51,135 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-02 11:23:51,136 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-02 11:23:51,136 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-02 11:23:51,136 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-02 11:23:51,143 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:23:51" (1/1) ... [2024-11-02 11:23:51,157 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:23:51" (1/1) ... [2024-11-02 11:23:51,194 INFO L138 Inliner]: procedures = 25, calls = 36, calls flagged for inlining = 13, calls inlined = 13, statements flattened = 189 [2024-11-02 11:23:51,199 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-02 11:23:51,199 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-02 11:23:51,200 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-02 11:23:51,200 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-02 11:23:51,210 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:23:51" (1/1) ... [2024-11-02 11:23:51,210 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:23:51" (1/1) ... [2024-11-02 11:23:51,215 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:23:51" (1/1) ... [2024-11-02 11:23:51,215 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:23:51" (1/1) ... [2024-11-02 11:23:51,227 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:23:51" (1/1) ... [2024-11-02 11:23:51,233 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:23:51" (1/1) ... [2024-11-02 11:23:51,241 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:23:51" (1/1) ... [2024-11-02 11:23:51,242 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:23:51" (1/1) ... [2024-11-02 11:23:51,249 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-02 11:23:51,250 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-02 11:23:51,250 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-02 11:23:51,250 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-02 11:23:51,251 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:23:51" (1/1) ... [2024-11-02 11:23:51,260 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-02 11:23:51,273 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7d5d62a-912a-43dd-b10e-f276c288467a/bin/utaipan-verify-DbMuA5NWw2/z3 [2024-11-02 11:23:51,288 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7d5d62a-912a-43dd-b10e-f276c288467a/bin/utaipan-verify-DbMuA5NWw2/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-02 11:23:51,296 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7d5d62a-912a-43dd-b10e-f276c288467a/bin/utaipan-verify-DbMuA5NWw2/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-02 11:23:51,323 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-02 11:23:51,323 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-11-02 11:23:51,324 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-11-02 11:23:51,324 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-11-02 11:23:51,324 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-11-02 11:23:51,326 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2024-11-02 11:23:51,326 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2024-11-02 11:23:51,327 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-02 11:23:51,327 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-02 11:23:51,327 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-11-02 11:23:51,328 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-11-02 11:23:51,328 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-02 11:23:51,328 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-02 11:23:51,329 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-02 11:23:51,329 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-02 11:23:51,331 WARN L207 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-02 11:23:51,480 INFO L238 CfgBuilder]: Building ICFG [2024-11-02 11:23:51,483 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-02 11:23:51,947 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-02 11:23:51,948 INFO L287 CfgBuilder]: Performing block encoding [2024-11-02 11:23:52,341 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-02 11:23:52,341 INFO L316 CfgBuilder]: Removed 3 assume(true) statements. [2024-11-02 11:23:52,342 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 11:23:52 BoogieIcfgContainer [2024-11-02 11:23:52,342 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-02 11:23:52,346 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-02 11:23:52,347 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-02 11:23:52,351 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-02 11:23:52,351 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.11 11:23:50" (1/3) ... [2024-11-02 11:23:52,352 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@9d3ec44 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 11:23:52, skipping insertion in model container [2024-11-02 11:23:52,352 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:23:51" (2/3) ... [2024-11-02 11:23:52,353 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@9d3ec44 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 11:23:52, skipping insertion in model container [2024-11-02 11:23:52,353 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 11:23:52" (3/3) ... [2024-11-02 11:23:52,356 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-more-multiply-verify.wvr.c [2024-11-02 11:23:52,377 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-02 11:23:52,377 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 12 error locations. [2024-11-02 11:23:52,377 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-02 11:23:52,481 INFO L143 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2024-11-02 11:23:52,541 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 56 places, 49 transitions, 119 flow [2024-11-02 11:23:52,837 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 2240 states, 2176 states have (on average 3.4347426470588234) internal successors, (7474), 2239 states have internal predecessors, (7474), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-02 11:23:52,872 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-02 11:23:52,879 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=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;@7f5dad2d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-02 11:23:52,880 INFO L334 AbstractCegarLoop]: Starting to check reachability of 25 error locations. [2024-11-02 11:23:52,889 INFO L276 IsEmpty]: Start isEmpty. Operand has 2240 states, 2176 states have (on average 3.4347426470588234) internal successors, (7474), 2239 states have internal predecessors, (7474), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-02 11:23:52,895 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2024-11-02 11:23:52,895 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 11:23:52,895 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1] [2024-11-02 11:23:52,896 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2024-11-02 11:23:52,901 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 11:23:52,902 INFO L85 PathProgramCache]: Analyzing trace with hash 571754, now seen corresponding path program 1 times [2024-11-02 11:23:52,912 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-02 11:23:52,912 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1985328435] [2024-11-02 11:23:52,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 11:23:52,913 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-02 11:23:53,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 11:23:53,255 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-02 11:23:53,255 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-02 11:23:53,255 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1985328435] [2024-11-02 11:23:53,256 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1985328435] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-02 11:23:53,256 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-02 11:23:53,257 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-02 11:23:53,259 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [111338159] [2024-11-02 11:23:53,260 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-02 11:23:53,265 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-02 11:23:53,266 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-02 11:23:53,297 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-02 11:23:53,298 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-02 11:23:53,308 INFO L87 Difference]: Start difference. First operand has 2240 states, 2176 states have (on average 3.4347426470588234) internal successors, (7474), 2239 states have internal predecessors, (7474), 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 4 states, 3 states have (on average 1.0) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-02 11:23:53,722 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-02 11:23:53,723 INFO L93 Difference]: Finished difference Result 2245 states and 7480 transitions. [2024-11-02 11:23:53,725 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-02 11:23:53,726 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.0) internal successors, (3), 3 states have internal predecessors, (3), 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 3 [2024-11-02 11:23:53,726 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-02 11:23:53,830 INFO L225 Difference]: With dead ends: 2245 [2024-11-02 11:23:53,830 INFO L226 Difference]: Without dead ends: 1650 [2024-11-02 11:23:53,872 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-02 11:23:53,888 INFO L432 NwaCegarLoop]: 11 mSDtfsCounter, 3 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 90 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 32 SdHoareTripleChecker+Invalid, 94 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 90 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-02 11:23:53,889 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 32 Invalid, 94 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 90 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-02 11:23:53,928 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1650 states. [2024-11-02 11:23:54,080 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1650 to 1650. [2024-11-02 11:23:54,087 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1650 states, 1625 states have (on average 3.3655384615384616) internal successors, (5469), 1649 states have internal predecessors, (5469), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-02 11:23:54,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1650 states to 1650 states and 5469 transitions. [2024-11-02 11:23:54,106 INFO L78 Accepts]: Start accepts. Automaton has 1650 states and 5469 transitions. Word has length 3 [2024-11-02 11:23:54,106 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-02 11:23:54,107 INFO L471 AbstractCegarLoop]: Abstraction has 1650 states and 5469 transitions. [2024-11-02 11:23:54,108 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.0) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-02 11:23:54,108 INFO L276 IsEmpty]: Start isEmpty. Operand 1650 states and 5469 transitions. [2024-11-02 11:23:54,109 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2024-11-02 11:23:54,109 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 11:23:54,110 INFO L215 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1] [2024-11-02 11:23:54,110 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-02 11:23:54,111 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2024-11-02 11:23:54,111 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 11:23:54,112 INFO L85 PathProgramCache]: Analyzing trace with hash -146170172, now seen corresponding path program 1 times [2024-11-02 11:23:54,113 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-02 11:23:54,113 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [381279237] [2024-11-02 11:23:54,113 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 11:23:54,114 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-02 11:23:54,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 11:23:54,333 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-02 11:23:54,333 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-02 11:23:54,333 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [381279237] [2024-11-02 11:23:54,333 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [381279237] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-02 11:23:54,334 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1921155174] [2024-11-02 11:23:54,334 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 11:23:54,334 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-02 11:23:54,334 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7d5d62a-912a-43dd-b10e-f276c288467a/bin/utaipan-verify-DbMuA5NWw2/z3 [2024-11-02 11:23:54,337 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7d5d62a-912a-43dd-b10e-f276c288467a/bin/utaipan-verify-DbMuA5NWw2/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-02 11:23:54,339 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7d5d62a-912a-43dd-b10e-f276c288467a/bin/utaipan-verify-DbMuA5NWw2/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-02 11:23:54,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 11:23:54,439 INFO L255 TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-02 11:23:54,447 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-02 11:23:54,520 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-02 11:23:54,520 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-02 11:23:54,520 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1921155174] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-02 11:23:54,520 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-02 11:23:54,521 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2024-11-02 11:23:54,522 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1510796503] [2024-11-02 11:23:54,522 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-02 11:23:54,524 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-02 11:23:54,524 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-02 11:23:54,525 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-02 11:23:54,525 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-02 11:23:54,525 INFO L87 Difference]: Start difference. First operand 1650 states and 5469 transitions. Second operand has 6 states, 5 states have (on average 1.2) internal successors, (6), 5 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) [2024-11-02 11:23:54,712 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-02 11:23:54,714 INFO L93 Difference]: Finished difference Result 1650 states and 5469 transitions. [2024-11-02 11:23:54,715 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-02 11:23:54,715 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 1.2) internal successors, (6), 5 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 [2024-11-02 11:23:54,715 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-02 11:23:54,731 INFO L225 Difference]: With dead ends: 1650 [2024-11-02 11:23:54,731 INFO L226 Difference]: Without dead ends: 1649 [2024-11-02 11:23:54,733 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2024-11-02 11:23:54,734 INFO L432 NwaCegarLoop]: 9 mSDtfsCounter, 9 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 97 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 27 SdHoareTripleChecker+Invalid, 97 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 97 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-02 11:23:54,735 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 27 Invalid, 97 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 97 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-02 11:23:54,743 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1649 states. [2024-11-02 11:23:54,795 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1649 to 1649. [2024-11-02 11:23:54,801 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1649 states, 1625 states have (on average 3.364923076923077) internal successors, (5468), 1648 states have internal predecessors, (5468), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-02 11:23:54,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1649 states to 1649 states and 5468 transitions. [2024-11-02 11:23:54,867 INFO L78 Accepts]: Start accepts. Automaton has 1649 states and 5468 transitions. Word has length 6 [2024-11-02 11:23:54,868 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-02 11:23:54,868 INFO L471 AbstractCegarLoop]: Abstraction has 1649 states and 5468 transitions. [2024-11-02 11:23:54,868 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 1.2) internal successors, (6), 5 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) [2024-11-02 11:23:54,868 INFO L276 IsEmpty]: Start isEmpty. Operand 1649 states and 5468 transitions. [2024-11-02 11:23:54,869 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2024-11-02 11:23:54,869 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 11:23:54,869 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2024-11-02 11:23:54,900 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7d5d62a-912a-43dd-b10e-f276c288467a/bin/utaipan-verify-DbMuA5NWw2/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-02 11:23:55,070 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7d5d62a-912a-43dd-b10e-f276c288467a/bin/utaipan-verify-DbMuA5NWw2/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-02 11:23:55,070 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2024-11-02 11:23:55,072 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 11:23:55,072 INFO L85 PathProgramCache]: Analyzing trace with hash -144170786, now seen corresponding path program 1 times [2024-11-02 11:23:55,079 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-02 11:23:55,079 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1168160177] [2024-11-02 11:23:55,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 11:23:55,079 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-02 11:23:55,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 11:23:55,350 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-02 11:23:55,350 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-02 11:23:55,351 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1168160177] [2024-11-02 11:23:55,351 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1168160177] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-02 11:23:55,351 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-02 11:23:55,351 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-02 11:23:55,351 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1436611443] [2024-11-02 11:23:55,352 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-02 11:23:55,352 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-02 11:23:55,352 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-02 11:23:55,353 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-02 11:23:55,353 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-02 11:23:55,353 INFO L87 Difference]: Start difference. First operand 1649 states and 5468 transitions. Second operand has 4 states, 3 states have (on average 2.0) internal successors, (6), 3 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) [2024-11-02 11:23:55,599 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-02 11:23:55,600 INFO L93 Difference]: Finished difference Result 3240 states and 10761 transitions. [2024-11-02 11:23:55,600 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-02 11:23:55,600 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 3 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 [2024-11-02 11:23:55,601 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-02 11:23:55,619 INFO L225 Difference]: With dead ends: 3240 [2024-11-02 11:23:55,619 INFO L226 Difference]: Without dead ends: 1810 [2024-11-02 11:23:55,624 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-02 11:23:55,626 INFO L432 NwaCegarLoop]: 11 mSDtfsCounter, 21 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 93 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 33 SdHoareTripleChecker+Invalid, 100 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 93 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-02 11:23:55,628 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 33 Invalid, 100 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 93 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-02 11:23:55,634 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1810 states. [2024-11-02 11:23:55,695 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1810 to 1810. [2024-11-02 11:23:55,701 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1810 states, 1781 states have (on average 3.3256597417181357) internal successors, (5923), 1809 states have internal predecessors, (5923), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-02 11:23:55,712 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1810 states to 1810 states and 5923 transitions. [2024-11-02 11:23:55,717 INFO L78 Accepts]: Start accepts. Automaton has 1810 states and 5923 transitions. Word has length 6 [2024-11-02 11:23:55,717 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-02 11:23:55,717 INFO L471 AbstractCegarLoop]: Abstraction has 1810 states and 5923 transitions. [2024-11-02 11:23:55,717 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 3 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) [2024-11-02 11:23:55,718 INFO L276 IsEmpty]: Start isEmpty. Operand 1810 states and 5923 transitions. [2024-11-02 11:23:55,718 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-11-02 11:23:55,719 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 11:23:55,719 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1] [2024-11-02 11:23:55,719 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-02 11:23:55,720 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2024-11-02 11:23:55,721 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 11:23:55,721 INFO L85 PathProgramCache]: Analyzing trace with hash -236307455, now seen corresponding path program 1 times [2024-11-02 11:23:55,721 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-02 11:23:55,721 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1035131748] [2024-11-02 11:23:55,722 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 11:23:55,722 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-02 11:23:55,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 11:23:55,886 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-02 11:23:55,886 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-02 11:23:55,886 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1035131748] [2024-11-02 11:23:55,886 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1035131748] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-02 11:23:55,887 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1053263807] [2024-11-02 11:23:55,887 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 11:23:55,887 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-02 11:23:55,887 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7d5d62a-912a-43dd-b10e-f276c288467a/bin/utaipan-verify-DbMuA5NWw2/z3 [2024-11-02 11:23:55,889 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7d5d62a-912a-43dd-b10e-f276c288467a/bin/utaipan-verify-DbMuA5NWw2/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-02 11:23:55,892 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7d5d62a-912a-43dd-b10e-f276c288467a/bin/utaipan-verify-DbMuA5NWw2/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-02 11:23:55,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 11:23:55,979 INFO L255 TraceCheckSpWp]: Trace formula consists of 73 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-02 11:23:55,980 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-02 11:23:56,019 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-02 11:23:56,019 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-02 11:23:56,074 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-02 11:23:56,074 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1053263807] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-02 11:23:56,075 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [450560060] [2024-11-02 11:23:56,084 FATAL L? ?]: Ignoring exception! java.lang.UnsupportedOperationException: Construction of path programs is not yet supported for concurrent programs at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.(PathProgram.java:259) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram.constructPathProgram(PathProgram.java:118) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.SifaRunner.(SifaRunner.java:90) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSifa.construct(IpTcStrategyModuleSifa.java:68) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:77) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:267) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:148) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:137) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:82) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:302) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:407) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:342) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:324) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:426) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:312) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseConcurrentProgram(TraceAbstractionStarter.java:236) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:165) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:143) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:167) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:150) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:127) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:233) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:227) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:144) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:106) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:319) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2024-11-02 11:23:56,086 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-02 11:23:56,086 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 10 [2024-11-02 11:23:56,086 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1079654891] [2024-11-02 11:23:56,086 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-02 11:23:56,087 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-02 11:23:56,087 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-02 11:23:56,088 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-02 11:23:56,088 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2024-11-02 11:23:56,088 INFO L87 Difference]: Start difference. First operand 1810 states and 5923 transitions. Second operand has 12 states, 11 states have (on average 1.6363636363636365) internal successors, (18), 11 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-02 11:23:56,321 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-02 11:23:56,321 INFO L93 Difference]: Finished difference Result 1820 states and 5938 transitions. [2024-11-02 11:23:56,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-02 11:23:56,322 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 1.6363636363636365) internal successors, (18), 11 states have internal predecessors, (18), 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 7 [2024-11-02 11:23:56,322 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-02 11:23:56,339 INFO L225 Difference]: With dead ends: 1820 [2024-11-02 11:23:56,339 INFO L226 Difference]: Without dead ends: 1819 [2024-11-02 11:23:56,340 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=77, Invalid=163, Unknown=0, NotChecked=0, Total=240 [2024-11-02 11:23:56,342 INFO L432 NwaCegarLoop]: 10 mSDtfsCounter, 10 mSDsluCounter, 49 mSDsCounter, 0 mSdLazyCounter, 190 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 59 SdHoareTripleChecker+Invalid, 191 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 190 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-02 11:23:56,342 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 59 Invalid, 191 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 190 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-02 11:23:56,347 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1819 states. [2024-11-02 11:23:56,429 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1819 to 1819. [2024-11-02 11:23:56,436 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1819 states, 1790 states have (on average 3.315642458100559) internal successors, (5935), 1818 states have internal predecessors, (5935), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-02 11:23:56,446 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1819 states to 1819 states and 5935 transitions. [2024-11-02 11:23:56,451 INFO L78 Accepts]: Start accepts. Automaton has 1819 states and 5935 transitions. Word has length 7 [2024-11-02 11:23:56,451 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-02 11:23:56,452 INFO L471 AbstractCegarLoop]: Abstraction has 1819 states and 5935 transitions. [2024-11-02 11:23:56,452 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 1.6363636363636365) internal successors, (18), 11 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-02 11:23:56,452 INFO L276 IsEmpty]: Start isEmpty. Operand 1819 states and 5935 transitions. [2024-11-02 11:23:56,453 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2024-11-02 11:23:56,453 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 11:23:56,453 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-02 11:23:56,475 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7d5d62a-912a-43dd-b10e-f276c288467a/bin/utaipan-verify-DbMuA5NWw2/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-02 11:23:56,654 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7d5d62a-912a-43dd-b10e-f276c288467a/bin/utaipan-verify-DbMuA5NWw2/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-02 11:23:56,654 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2024-11-02 11:23:56,655 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 11:23:56,655 INFO L85 PathProgramCache]: Analyzing trace with hash 543819076, now seen corresponding path program 1 times [2024-11-02 11:23:56,655 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-02 11:23:56,655 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1677934627] [2024-11-02 11:23:56,655 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 11:23:56,660 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-02 11:23:56,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 11:23:56,891 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-02 11:23:56,891 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-02 11:23:56,892 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1677934627] [2024-11-02 11:23:56,892 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1677934627] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-02 11:23:56,892 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [802913929] [2024-11-02 11:23:56,892 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 11:23:56,893 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-02 11:23:56,893 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7d5d62a-912a-43dd-b10e-f276c288467a/bin/utaipan-verify-DbMuA5NWw2/z3 [2024-11-02 11:23:56,896 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7d5d62a-912a-43dd-b10e-f276c288467a/bin/utaipan-verify-DbMuA5NWw2/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-02 11:23:56,899 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7d5d62a-912a-43dd-b10e-f276c288467a/bin/utaipan-verify-DbMuA5NWw2/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-02 11:23:56,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 11:23:57,003 INFO L255 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-02 11:23:57,005 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-02 11:23:57,050 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-02 11:23:57,055 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-02 11:23:57,056 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [802913929] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-02 11:23:57,056 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-02 11:23:57,057 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [4] total 5 [2024-11-02 11:23:57,058 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [852381298] [2024-11-02 11:23:57,058 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-02 11:23:57,059 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-02 11:23:57,060 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-02 11:23:57,060 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-02 11:23:57,065 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-02 11:23:57,066 INFO L87 Difference]: Start difference. First operand 1819 states and 5935 transitions. Second operand has 3 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-02 11:23:57,173 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-02 11:23:57,173 INFO L93 Difference]: Finished difference Result 1819 states and 5935 transitions. [2024-11-02 11:23:57,174 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-02 11:23:57,174 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 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 9 [2024-11-02 11:23:57,174 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-02 11:23:57,188 INFO L225 Difference]: With dead ends: 1819 [2024-11-02 11:23:57,188 INFO L226 Difference]: Without dead ends: 1139 [2024-11-02 11:23:57,191 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-02 11:23:57,192 INFO L432 NwaCegarLoop]: 11 mSDtfsCounter, 28 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 11 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-02 11:23:57,193 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [28 Valid, 11 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-02 11:23:57,196 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1139 states. [2024-11-02 11:23:57,253 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1139 to 1139. [2024-11-02 11:23:57,260 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1139 states, 1132 states have (on average 3.2323321554770317) internal successors, (3659), 1138 states have internal predecessors, (3659), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-02 11:23:57,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1139 states to 1139 states and 3659 transitions. [2024-11-02 11:23:57,276 INFO L78 Accepts]: Start accepts. Automaton has 1139 states and 3659 transitions. Word has length 9 [2024-11-02 11:23:57,277 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-02 11:23:57,277 INFO L471 AbstractCegarLoop]: Abstraction has 1139 states and 3659 transitions. [2024-11-02 11:23:57,278 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-02 11:23:57,278 INFO L276 IsEmpty]: Start isEmpty. Operand 1139 states and 3659 transitions. [2024-11-02 11:23:57,280 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2024-11-02 11:23:57,282 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 11:23:57,282 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-02 11:23:57,303 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7d5d62a-912a-43dd-b10e-f276c288467a/bin/utaipan-verify-DbMuA5NWw2/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-02 11:23:57,487 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7d5d62a-912a-43dd-b10e-f276c288467a/bin/utaipan-verify-DbMuA5NWw2/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-02 11:23:57,487 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting thread3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2024-11-02 11:23:57,488 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 11:23:57,488 INFO L85 PathProgramCache]: Analyzing trace with hash -1198402201, now seen corresponding path program 1 times [2024-11-02 11:23:57,488 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-02 11:23:57,488 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1644364462] [2024-11-02 11:23:57,488 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 11:23:57,488 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-02 11:23:57,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 11:23:57,584 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-02 11:23:57,584 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-02 11:23:57,584 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1644364462] [2024-11-02 11:23:57,584 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1644364462] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-02 11:23:57,585 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-02 11:23:57,585 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-02 11:23:57,585 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2132570181] [2024-11-02 11:23:57,586 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-02 11:23:57,586 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-02 11:23:57,586 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-02 11:23:57,587 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-02 11:23:57,587 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-02 11:23:57,587 INFO L87 Difference]: Start difference. First operand 1139 states and 3659 transitions. Second operand has 4 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-02 11:23:57,700 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-02 11:23:57,700 INFO L93 Difference]: Finished difference Result 1139 states and 3659 transitions. [2024-11-02 11:23:57,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-02 11:23:57,701 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 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 9 [2024-11-02 11:23:57,701 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-02 11:23:57,709 INFO L225 Difference]: With dead ends: 1139 [2024-11-02 11:23:57,709 INFO L226 Difference]: Without dead ends: 872 [2024-11-02 11:23:57,710 INFO L431 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 [2024-11-02 11:23:57,712 INFO L432 NwaCegarLoop]: 11 mSDtfsCounter, 30 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 20 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-02 11:23:57,715 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 20 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-02 11:23:57,717 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 872 states. [2024-11-02 11:23:57,750 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 872 to 872. [2024-11-02 11:23:57,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 872 states, 869 states have (on average 3.2220943613348676) internal successors, (2800), 871 states have internal predecessors, (2800), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-02 11:23:57,763 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 872 states to 872 states and 2800 transitions. [2024-11-02 11:23:57,767 INFO L78 Accepts]: Start accepts. Automaton has 872 states and 2800 transitions. Word has length 9 [2024-11-02 11:23:57,767 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-02 11:23:57,767 INFO L471 AbstractCegarLoop]: Abstraction has 872 states and 2800 transitions. [2024-11-02 11:23:57,767 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-02 11:23:57,767 INFO L276 IsEmpty]: Start isEmpty. Operand 872 states and 2800 transitions. [2024-11-02 11:23:57,769 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2024-11-02 11:23:57,769 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 11:23:57,769 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-02 11:23:57,769 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-02 11:23:57,769 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting thread3Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2024-11-02 11:23:57,770 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 11:23:57,770 INFO L85 PathProgramCache]: Analyzing trace with hash -368223706, now seen corresponding path program 1 times [2024-11-02 11:23:57,770 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-02 11:23:57,770 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1765212836] [2024-11-02 11:23:57,770 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 11:23:57,770 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-02 11:23:57,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 11:23:57,826 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-02 11:23:57,826 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-02 11:23:57,826 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1765212836] [2024-11-02 11:23:57,826 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1765212836] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-02 11:23:57,826 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-02 11:23:57,827 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-02 11:23:57,827 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1283399590] [2024-11-02 11:23:57,827 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-02 11:23:57,827 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-02 11:23:57,827 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-02 11:23:57,828 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-02 11:23:57,828 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-02 11:23:57,828 INFO L87 Difference]: Start difference. First operand 872 states and 2800 transitions. Second operand has 3 states, 2 states have (on average 7.0) internal successors, (14), 2 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-02 11:23:57,913 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-02 11:23:57,913 INFO L93 Difference]: Finished difference Result 872 states and 2800 transitions. [2024-11-02 11:23:57,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-02 11:23:57,914 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 7.0) internal successors, (14), 2 states have internal predecessors, (14), 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 14 [2024-11-02 11:23:57,914 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-02 11:23:57,922 INFO L225 Difference]: With dead ends: 872 [2024-11-02 11:23:57,922 INFO L226 Difference]: Without dead ends: 766 [2024-11-02 11:23:57,923 INFO L431 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 [2024-11-02 11:23:57,924 INFO L432 NwaCegarLoop]: 7 mSDtfsCounter, 20 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 7 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-02 11:23:57,924 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 7 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-02 11:23:57,926 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 766 states. [2024-11-02 11:23:57,963 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 766 to 766. [2024-11-02 11:23:57,966 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 766 states, 764 states have (on average 3.1858638743455496) internal successors, (2434), 765 states have internal predecessors, (2434), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-02 11:23:57,968 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 766 states to 766 states and 2434 transitions. [2024-11-02 11:23:57,971 INFO L78 Accepts]: Start accepts. Automaton has 766 states and 2434 transitions. Word has length 14 [2024-11-02 11:23:57,972 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-02 11:23:57,972 INFO L471 AbstractCegarLoop]: Abstraction has 766 states and 2434 transitions. [2024-11-02 11:23:57,973 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 7.0) internal successors, (14), 2 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-02 11:23:57,973 INFO L276 IsEmpty]: Start isEmpty. Operand 766 states and 2434 transitions. [2024-11-02 11:23:57,974 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2024-11-02 11:23:57,974 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 11:23:57,974 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-02 11:23:57,974 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-02 11:23:57,975 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting thread3Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2024-11-02 11:23:57,975 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 11:23:57,975 INFO L85 PathProgramCache]: Analyzing trace with hash 1469967613, now seen corresponding path program 1 times [2024-11-02 11:23:57,975 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-02 11:23:57,975 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1254841364] [2024-11-02 11:23:57,975 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 11:23:57,976 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-02 11:23:57,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 11:23:58,044 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-02 11:23:58,045 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-02 11:23:58,045 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1254841364] [2024-11-02 11:23:58,045 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1254841364] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-02 11:23:58,045 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-02 11:23:58,045 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-02 11:23:58,045 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [405034581] [2024-11-02 11:23:58,046 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-02 11:23:58,046 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-02 11:23:58,046 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-02 11:23:58,046 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-02 11:23:58,046 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-02 11:23:58,047 INFO L87 Difference]: Start difference. First operand 766 states and 2434 transitions. Second operand has 3 states, 3 states have (on average 5.0) internal successors, (15), 2 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-02 11:23:58,152 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-02 11:23:58,153 INFO L93 Difference]: Finished difference Result 990 states and 3062 transitions. [2024-11-02 11:23:58,153 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-02 11:23:58,153 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.0) internal successors, (15), 2 states have internal predecessors, (15), 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 15 [2024-11-02 11:23:58,153 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-02 11:23:58,159 INFO L225 Difference]: With dead ends: 990 [2024-11-02 11:23:58,159 INFO L226 Difference]: Without dead ends: 566 [2024-11-02 11:23:58,160 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-02 11:23:58,161 INFO L432 NwaCegarLoop]: 10 mSDtfsCounter, 12 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 15 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-02 11:23:58,161 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 15 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-02 11:23:58,162 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 566 states. [2024-11-02 11:23:58,204 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 566 to 566. [2024-11-02 11:23:58,205 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 566 states, 564 states have (on average 2.9326241134751774) internal successors, (1654), 565 states have internal predecessors, (1654), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-02 11:23:58,209 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 566 states to 566 states and 1654 transitions. [2024-11-02 11:23:58,212 INFO L78 Accepts]: Start accepts. Automaton has 566 states and 1654 transitions. Word has length 15 [2024-11-02 11:23:58,212 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-02 11:23:58,212 INFO L471 AbstractCegarLoop]: Abstraction has 566 states and 1654 transitions. [2024-11-02 11:23:58,212 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.0) internal successors, (15), 2 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-02 11:23:58,213 INFO L276 IsEmpty]: Start isEmpty. Operand 566 states and 1654 transitions. [2024-11-02 11:23:58,213 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2024-11-02 11:23:58,214 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 11:23:58,214 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 4, 1, 1] [2024-11-02 11:23:58,214 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-02 11:23:58,214 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2024-11-02 11:23:58,216 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 11:23:58,216 INFO L85 PathProgramCache]: Analyzing trace with hash 264217243, now seen corresponding path program 2 times [2024-11-02 11:23:58,216 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-02 11:23:58,216 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1847838258] [2024-11-02 11:23:58,216 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 11:23:58,217 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-02 11:23:58,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 11:23:58,427 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-02 11:23:58,428 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-02 11:23:58,428 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1847838258] [2024-11-02 11:23:58,428 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1847838258] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-02 11:23:58,428 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [70335532] [2024-11-02 11:23:58,428 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-02 11:23:58,428 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-02 11:23:58,429 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7d5d62a-912a-43dd-b10e-f276c288467a/bin/utaipan-verify-DbMuA5NWw2/z3 [2024-11-02 11:23:58,431 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7d5d62a-912a-43dd-b10e-f276c288467a/bin/utaipan-verify-DbMuA5NWw2/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-02 11:23:58,432 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7d5d62a-912a-43dd-b10e-f276c288467a/bin/utaipan-verify-DbMuA5NWw2/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-02 11:23:58,512 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2024-11-02 11:23:58,513 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-02 11:23:58,514 INFO L255 TraceCheckSpWp]: Trace formula consists of 60 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-02 11:23:58,515 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-02 11:23:58,577 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-11-02 11:23:58,577 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-02 11:23:58,624 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-11-02 11:23:58,625 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [70335532] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-02 11:23:58,625 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1470040692] [2024-11-02 11:23:58,625 FATAL L? ?]: Ignoring exception! java.lang.UnsupportedOperationException: Construction of path programs is not yet supported for concurrent programs at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.(PathProgram.java:259) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram.constructPathProgram(PathProgram.java:118) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.SifaRunner.(SifaRunner.java:90) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSifa.construct(IpTcStrategyModuleSifa.java:68) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:77) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:267) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:148) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:137) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:82) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:302) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:407) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:342) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:324) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:426) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:312) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseConcurrentProgram(TraceAbstractionStarter.java:236) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:165) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:143) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:167) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:150) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:127) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:233) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:227) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:144) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:106) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:319) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2024-11-02 11:23:58,626 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-02 11:23:58,627 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 2, 2] total 12 [2024-11-02 11:23:58,627 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [101337329] [2024-11-02 11:23:58,627 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-02 11:23:58,627 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-02 11:23:58,627 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-02 11:23:58,628 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-02 11:23:58,628 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=132, Unknown=0, NotChecked=0, Total=182 [2024-11-02 11:23:58,628 INFO L87 Difference]: Start difference. First operand 566 states and 1654 transitions. Second operand has 14 states, 13 states have (on average 1.7692307692307692) internal successors, (23), 13 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-02 11:23:58,933 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-02 11:23:58,933 INFO L93 Difference]: Finished difference Result 569 states and 1659 transitions. [2024-11-02 11:23:58,933 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-02 11:23:58,934 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 1.7692307692307692) internal successors, (23), 13 states have internal predecessors, (23), 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 16 [2024-11-02 11:23:58,934 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-02 11:23:58,940 INFO L225 Difference]: With dead ends: 569 [2024-11-02 11:23:58,941 INFO L226 Difference]: Without dead ends: 568 [2024-11-02 11:23:58,941 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 27 SyntacticMatches, 1 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 97 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=174, Invalid=426, Unknown=0, NotChecked=0, Total=600 [2024-11-02 11:23:58,942 INFO L432 NwaCegarLoop]: 8 mSDtfsCounter, 22 mSDsluCounter, 32 mSDsCounter, 0 mSdLazyCounter, 133 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 40 SdHoareTripleChecker+Invalid, 133 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 133 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-02 11:23:58,943 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 40 Invalid, 133 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 133 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-02 11:23:58,944 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 568 states. [2024-11-02 11:23:58,970 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 568 to 554. [2024-11-02 11:23:58,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 554 states, 553 states have (on average 2.9638336347197107) internal successors, (1639), 553 states have internal predecessors, (1639), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-02 11:23:58,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 554 states to 554 states and 1639 transitions. [2024-11-02 11:23:58,977 INFO L78 Accepts]: Start accepts. Automaton has 554 states and 1639 transitions. Word has length 16 [2024-11-02 11:23:58,977 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-02 11:23:58,977 INFO L471 AbstractCegarLoop]: Abstraction has 554 states and 1639 transitions. [2024-11-02 11:23:58,978 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 1.7692307692307692) internal successors, (23), 13 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-02 11:23:58,978 INFO L276 IsEmpty]: Start isEmpty. Operand 554 states and 1639 transitions. [2024-11-02 11:23:58,979 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2024-11-02 11:23:58,979 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 11:23:58,979 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-02 11:23:59,000 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7d5d62a-912a-43dd-b10e-f276c288467a/bin/utaipan-verify-DbMuA5NWw2/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-02 11:23:59,184 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7d5d62a-912a-43dd-b10e-f276c288467a/bin/utaipan-verify-DbMuA5NWw2/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-02 11:23:59,185 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting thread3Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2024-11-02 11:23:59,185 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 11:23:59,185 INFO L85 PathProgramCache]: Analyzing trace with hash -351257760, now seen corresponding path program 1 times [2024-11-02 11:23:59,185 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-02 11:23:59,185 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1117147739] [2024-11-02 11:23:59,187 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 11:23:59,191 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-02 11:23:59,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 11:23:59,268 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-02 11:23:59,269 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-02 11:23:59,269 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1117147739] [2024-11-02 11:23:59,269 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1117147739] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-02 11:23:59,269 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-02 11:23:59,269 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-02 11:23:59,269 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1609995522] [2024-11-02 11:23:59,269 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-02 11:23:59,270 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-02 11:23:59,270 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-02 11:23:59,270 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-02 11:23:59,270 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-02 11:23:59,270 INFO L87 Difference]: Start difference. First operand 554 states and 1639 transitions. Second operand has 3 states, 2 states have (on average 9.0) internal successors, (18), 3 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-02 11:23:59,366 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-02 11:23:59,366 INFO L93 Difference]: Finished difference Result 554 states and 1639 transitions. [2024-11-02 11:23:59,367 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-02 11:23:59,367 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 9.0) internal successors, (18), 3 states have internal predecessors, (18), 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 18 [2024-11-02 11:23:59,367 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-02 11:23:59,370 INFO L225 Difference]: With dead ends: 554 [2024-11-02 11:23:59,370 INFO L226 Difference]: Without dead ends: 0 [2024-11-02 11:23:59,372 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-02 11:23:59,373 INFO L432 NwaCegarLoop]: 10 mSDtfsCounter, 17 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 16 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 60 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-02 11:23:59,374 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 16 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-02 11:23:59,375 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-02 11:23:59,375 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-02 11:23:59,375 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) [2024-11-02 11:23:59,376 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-02 11:23:59,378 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 18 [2024-11-02 11:23:59,378 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-02 11:23:59,379 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-02 11:23:59,379 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 9.0) internal successors, (18), 3 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-02 11:23:59,379 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-02 11:23:59,379 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-02 11:23:59,382 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (24 of 25 remaining) [2024-11-02 11:23:59,382 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (23 of 25 remaining) [2024-11-02 11:23:59,383 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (22 of 25 remaining) [2024-11-02 11:23:59,383 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (21 of 25 remaining) [2024-11-02 11:23:59,383 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (20 of 25 remaining) [2024-11-02 11:23:59,383 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 25 remaining) [2024-11-02 11:23:59,383 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 25 remaining) [2024-11-02 11:23:59,383 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 25 remaining) [2024-11-02 11:23:59,384 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 25 remaining) [2024-11-02 11:23:59,384 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 25 remaining) [2024-11-02 11:23:59,384 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 25 remaining) [2024-11-02 11:23:59,384 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 25 remaining) [2024-11-02 11:23:59,384 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (12 of 25 remaining) [2024-11-02 11:23:59,384 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (11 of 25 remaining) [2024-11-02 11:23:59,384 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (10 of 25 remaining) [2024-11-02 11:23:59,385 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 25 remaining) [2024-11-02 11:23:59,385 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 25 remaining) [2024-11-02 11:23:59,385 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 25 remaining) [2024-11-02 11:23:59,385 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 25 remaining) [2024-11-02 11:23:59,385 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 25 remaining) [2024-11-02 11:23:59,385 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 25 remaining) [2024-11-02 11:23:59,387 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 25 remaining) [2024-11-02 11:23:59,387 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 25 remaining) [2024-11-02 11:23:59,387 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 25 remaining) [2024-11-02 11:23:59,387 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 25 remaining) [2024-11-02 11:23:59,388 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-02 11:23:59,391 INFO L407 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-02 11:23:59,397 INFO L239 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-11-02 11:23:59,397 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-02 11:23:59,400 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.11 11:23:59 BasicIcfg [2024-11-02 11:23:59,400 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-02 11:23:59,401 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-02 11:23:59,401 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-02 11:23:59,401 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-02 11:23:59,402 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 11:23:52" (3/4) ... [2024-11-02 11:23:59,404 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-02 11:23:59,407 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2024-11-02 11:23:59,407 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2024-11-02 11:23:59,407 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread3 [2024-11-02 11:23:59,414 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 91 nodes and edges [2024-11-02 11:23:59,414 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 21 nodes and edges [2024-11-02 11:23:59,414 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2024-11-02 11:23:59,414 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2024-11-02 11:23:59,516 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7d5d62a-912a-43dd-b10e-f276c288467a/bin/utaipan-verify-DbMuA5NWw2/witness.graphml [2024-11-02 11:23:59,516 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7d5d62a-912a-43dd-b10e-f276c288467a/bin/utaipan-verify-DbMuA5NWw2/witness.yml [2024-11-02 11:23:59,516 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-02 11:23:59,517 INFO L158 Benchmark]: Toolchain (without parser) took 8806.48ms. Allocated memory was 140.5MB in the beginning and 255.9MB in the end (delta: 115.3MB). Free memory was 107.9MB in the beginning and 72.3MB in the end (delta: 35.6MB). Peak memory consumption was 152.2MB. Max. memory is 16.1GB. [2024-11-02 11:23:59,517 INFO L158 Benchmark]: CDTParser took 0.24ms. Allocated memory is still 140.5MB. Free memory was 107.1MB in the beginning and 106.9MB in the end (delta: 167.8kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-02 11:23:59,518 INFO L158 Benchmark]: CACSL2BoogieTranslator took 422.03ms. Allocated memory is still 140.5MB. Free memory was 107.9MB in the beginning and 94.0MB in the end (delta: 14.0MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-11-02 11:23:59,518 INFO L158 Benchmark]: Boogie Procedure Inliner took 63.05ms. Allocated memory is still 140.5MB. Free memory was 94.0MB in the beginning and 91.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-02 11:23:59,518 INFO L158 Benchmark]: Boogie Preprocessor took 49.65ms. Allocated memory is still 140.5MB. Free memory was 91.9MB in the beginning and 90.3MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-02 11:23:59,519 INFO L158 Benchmark]: RCFGBuilder took 1092.43ms. Allocated memory was 140.5MB in the beginning and 184.5MB in the end (delta: 44.0MB). Free memory was 90.3MB in the beginning and 148.5MB in the end (delta: -58.2MB). Peak memory consumption was 60.3MB. Max. memory is 16.1GB. [2024-11-02 11:23:59,519 INFO L158 Benchmark]: TraceAbstraction took 7053.99ms. Allocated memory was 184.5MB in the beginning and 255.9MB in the end (delta: 71.3MB). Free memory was 148.5MB in the beginning and 77.6MB in the end (delta: 70.9MB). Peak memory consumption was 142.2MB. Max. memory is 16.1GB. [2024-11-02 11:23:59,520 INFO L158 Benchmark]: Witness Printer took 115.68ms. Allocated memory is still 255.9MB. Free memory was 76.5MB in the beginning and 72.3MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-02 11:23:59,521 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24ms. Allocated memory is still 140.5MB. Free memory was 107.1MB in the beginning and 106.9MB in the end (delta: 167.8kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 422.03ms. Allocated memory is still 140.5MB. Free memory was 107.9MB in the beginning and 94.0MB in the end (delta: 14.0MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 63.05ms. Allocated memory is still 140.5MB. Free memory was 94.0MB in the beginning and 91.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 49.65ms. Allocated memory is still 140.5MB. Free memory was 91.9MB in the beginning and 90.3MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 1092.43ms. Allocated memory was 140.5MB in the beginning and 184.5MB in the end (delta: 44.0MB). Free memory was 90.3MB in the beginning and 148.5MB in the end (delta: -58.2MB). Peak memory consumption was 60.3MB. Max. memory is 16.1GB. * TraceAbstraction took 7053.99ms. Allocated memory was 184.5MB in the beginning and 255.9MB in the end (delta: 71.3MB). Free memory was 148.5MB in the beginning and 77.6MB in the end (delta: 70.9MB). Peak memory consumption was 142.2MB. Max. memory is 16.1GB. * Witness Printer took 115.68ms. Allocated memory is still 255.9MB. Free memory was 76.5MB in the beginning and 72.3MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - 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: 59]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 59]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 75]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 75]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 83]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 83]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 84]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 84]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 86]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 86]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 120]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 120]: 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, 80 locations, 25 error locations. Started 1 CEGAR loops. OverallTime: 6.8s, OverallIterations: 10, TraceHistogramMax: 5, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 2.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.3s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 172 SdHoareTripleChecker+Valid, 1.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 172 mSDsluCounter, 260 SdHoareTripleChecker+Invalid, 0.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 162 mSDsCounter, 15 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 801 IncrementalHoareTripleChecker+Invalid, 816 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 15 mSolverCounterUnsat, 98 mSDtfsCounter, 801 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 106 GetRequests, 45 SyntacticMatches, 1 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 140 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2240occurred in iteration=0, InterpolantAutomatonStates: 54, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.7s AutomataMinimizationTime, 10 MinimizatonAttempts, 14 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 1.7s InterpolantComputationTime, 141 NumberOfCodeBlocks, 129 NumberOfCodeBlocksAsserted, 14 NumberOfCheckSat, 148 ConstructedInterpolants, 0 QuantifiedInterpolants, 460 SizeOfPredicates, 9 NumberOfNonLiveVariables, 305 ConjunctsInSsa, 20 ConjunctsInUnsatCore, 16 InterpolantComputations, 8 PerfectInterpolantSequences, 50/108 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 12 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-11-02 11:23:59,558 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7d5d62a-912a-43dd-b10e-f276c288467a/bin/utaipan-verify-DbMuA5NWw2/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE