./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/seq-mthreaded/pals_STARTPALS_Triplicated.ufo.UNBOUNDED.pals.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 4fc63b2a Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_053565cc-9ee8-4d40-ab81-410949ac8397/bin/utaipan-verify-DbMuA5NWw2/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_053565cc-9ee8-4d40-ab81-410949ac8397/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_053565cc-9ee8-4d40-ab81-410949ac8397/bin/utaipan-verify-DbMuA5NWw2/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_053565cc-9ee8-4d40-ab81-410949ac8397/bin/utaipan-verify-DbMuA5NWw2/config/TaipanReach.xml -i ../../sv-benchmarks/c/seq-mthreaded/pals_STARTPALS_Triplicated.ufo.UNBOUNDED.pals.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_053565cc-9ee8-4d40-ab81-410949ac8397/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_053565cc-9ee8-4d40-ab81-410949ac8397/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 6ff1cedc7411bab7c4dff496b498f1be2a7af9e572a1448d390780005c75fec3 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4fc63b2 [2024-11-02 12:31:03,445 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-02 12:31:03,561 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_053565cc-9ee8-4d40-ab81-410949ac8397/bin/utaipan-verify-DbMuA5NWw2/config/svcomp-Overflow-32bit-Taipan_Default.epf [2024-11-02 12:31:03,570 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-02 12:31:03,572 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-02 12:31:03,624 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-02 12:31:03,625 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-02 12:31:03,625 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-02 12:31:03,626 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-02 12:31:03,627 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-02 12:31:03,628 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-02 12:31:03,630 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-02 12:31:03,630 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-02 12:31:03,631 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-02 12:31:03,631 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-02 12:31:03,635 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-02 12:31:03,635 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-02 12:31:03,636 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-02 12:31:03,636 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-02 12:31:03,637 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-02 12:31:03,637 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-02 12:31:03,642 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-02 12:31:03,643 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-02 12:31:03,644 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-02 12:31:03,644 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-02 12:31:03,645 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-02 12:31:03,645 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-02 12:31:03,645 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-02 12:31:03,649 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-02 12:31:03,650 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-02 12:31:03,650 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-02 12:31:03,651 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-02 12:31:03,651 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-02 12:31:03,652 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-02 12:31:03,652 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-02 12:31:03,652 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-02 12:31:03,653 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-02 12:31:03,654 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-02 12:31:03,655 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-02 12:31:03,656 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-02 12:31:03,656 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-02 12:31:03,657 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-02 12:31:03,657 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-02 12:31:03,658 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-02 12:31:03,658 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-02 12:31:03,659 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-02 12:31:03,659 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-02 12:31:03,660 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-02 12:31:03,660 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-02 12:31:03,661 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_053565cc-9ee8-4d40-ab81-410949ac8397/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_053565cc-9ee8-4d40-ab81-410949ac8397/bin/utaipan-verify-DbMuA5NWw2 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6ff1cedc7411bab7c4dff496b498f1be2a7af9e572a1448d390780005c75fec3 [2024-11-02 12:31:03,938 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-02 12:31:03,975 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-02 12:31:03,978 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-02 12:31:03,980 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-02 12:31:03,981 INFO L274 PluginConnector]: CDTParser initialized [2024-11-02 12:31:03,983 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_053565cc-9ee8-4d40-ab81-410949ac8397/bin/utaipan-verify-DbMuA5NWw2/../../sv-benchmarks/c/seq-mthreaded/pals_STARTPALS_Triplicated.ufo.UNBOUNDED.pals.c Unable to find full path for "g++" [2024-11-02 12:31:06,123 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-02 12:31:06,589 INFO L384 CDTParser]: Found 1 translation units. [2024-11-02 12:31:06,589 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_053565cc-9ee8-4d40-ab81-410949ac8397/sv-benchmarks/c/seq-mthreaded/pals_STARTPALS_Triplicated.ufo.UNBOUNDED.pals.c [2024-11-02 12:31:06,602 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_053565cc-9ee8-4d40-ab81-410949ac8397/bin/utaipan-verify-DbMuA5NWw2/data/a24f12b5a/f53c061114504238abe2315ae7724c75/FLAGab142364a [2024-11-02 12:31:06,786 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_053565cc-9ee8-4d40-ab81-410949ac8397/bin/utaipan-verify-DbMuA5NWw2/data/a24f12b5a/f53c061114504238abe2315ae7724c75 [2024-11-02 12:31:06,794 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-02 12:31:06,796 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-02 12:31:06,798 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-02 12:31:06,801 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-02 12:31:06,814 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-02 12:31:06,820 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 12:31:06" (1/1) ... [2024-11-02 12:31:06,822 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@76c3eef9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:31:06, skipping insertion in model container [2024-11-02 12:31:06,824 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 12:31:06" (1/1) ... [2024-11-02 12:31:06,886 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-02 12:31:07,196 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-02 12:31:07,212 INFO L200 MainTranslator]: Completed pre-run [2024-11-02 12:31:07,293 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-02 12:31:07,314 INFO L204 MainTranslator]: Completed translation [2024-11-02 12:31:07,315 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:31:07 WrapperNode [2024-11-02 12:31:07,315 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-02 12:31:07,316 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-02 12:31:07,316 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-02 12:31:07,317 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-02 12:31:07,325 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:31:07" (1/1) ... [2024-11-02 12:31:07,339 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:31:07" (1/1) ... [2024-11-02 12:31:07,390 INFO L138 Inliner]: procedures = 28, calls = 52, calls flagged for inlining = 10, calls inlined = 10, statements flattened = 433 [2024-11-02 12:31:07,391 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-02 12:31:07,392 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-02 12:31:07,392 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-02 12:31:07,392 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-02 12:31:07,406 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:31:07" (1/1) ... [2024-11-02 12:31:07,406 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:31:07" (1/1) ... [2024-11-02 12:31:07,411 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:31:07" (1/1) ... [2024-11-02 12:31:07,412 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:31:07" (1/1) ... [2024-11-02 12:31:07,424 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:31:07" (1/1) ... [2024-11-02 12:31:07,431 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:31:07" (1/1) ... [2024-11-02 12:31:07,438 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:31:07" (1/1) ... [2024-11-02 12:31:07,441 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:31:07" (1/1) ... [2024-11-02 12:31:07,447 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-02 12:31:07,448 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-02 12:31:07,448 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-02 12:31:07,448 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-02 12:31:07,449 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:31:07" (1/1) ... [2024-11-02 12:31:07,459 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-02 12:31:07,473 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_053565cc-9ee8-4d40-ab81-410949ac8397/bin/utaipan-verify-DbMuA5NWw2/z3 [2024-11-02 12:31:07,501 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_053565cc-9ee8-4d40-ab81-410949ac8397/bin/utaipan-verify-DbMuA5NWw2/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-02 12:31:07,506 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_053565cc-9ee8-4d40-ab81-410949ac8397/bin/utaipan-verify-DbMuA5NWw2/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-02 12:31:07,546 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-02 12:31:07,547 INFO L130 BoogieDeclarations]: Found specification of procedure write_history_bool [2024-11-02 12:31:07,547 INFO L138 BoogieDeclarations]: Found implementation of procedure write_history_bool [2024-11-02 12:31:07,547 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2024-11-02 12:31:07,548 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2024-11-02 12:31:07,548 INFO L130 BoogieDeclarations]: Found specification of procedure read_history_int8 [2024-11-02 12:31:07,548 INFO L138 BoogieDeclarations]: Found implementation of procedure read_history_int8 [2024-11-02 12:31:07,551 INFO L130 BoogieDeclarations]: Found specification of procedure read_history_bool [2024-11-02 12:31:07,551 INFO L138 BoogieDeclarations]: Found implementation of procedure read_history_bool [2024-11-02 12:31:07,551 INFO L130 BoogieDeclarations]: Found specification of procedure add_history_type [2024-11-02 12:31:07,552 INFO L138 BoogieDeclarations]: Found implementation of procedure add_history_type [2024-11-02 12:31:07,552 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-02 12:31:07,552 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-02 12:31:07,552 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-02 12:31:07,552 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-02 12:31:07,553 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-02 12:31:07,737 INFO L238 CfgBuilder]: Building ICFG [2024-11-02 12:31:07,740 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-02 12:31:08,556 INFO L? ?]: Removed 114 outVars from TransFormulas that were not future-live. [2024-11-02 12:31:08,557 INFO L287 CfgBuilder]: Performing block encoding [2024-11-02 12:31:08,832 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-02 12:31:08,832 INFO L316 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-02 12:31:08,833 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 12:31:08 BoogieIcfgContainer [2024-11-02 12:31:08,835 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-02 12:31:08,839 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-02 12:31:08,839 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-02 12:31:08,844 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-02 12:31:08,845 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.11 12:31:06" (1/3) ... [2024-11-02 12:31:08,846 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3111f990 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 12:31:08, skipping insertion in model container [2024-11-02 12:31:08,846 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:31:07" (2/3) ... [2024-11-02 12:31:08,848 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3111f990 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 12:31:08, skipping insertion in model container [2024-11-02 12:31:08,848 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 12:31:08" (3/3) ... [2024-11-02 12:31:08,851 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_STARTPALS_Triplicated.ufo.UNBOUNDED.pals.c [2024-11-02 12:31:08,876 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-02 12:31:08,876 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2024-11-02 12:31:09,015 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-02 12:31:09,025 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;@e37652a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-02 12:31:09,026 INFO L334 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2024-11-02 12:31:09,033 INFO L276 IsEmpty]: Start isEmpty. Operand has 159 states, 107 states have (on average 1.5420560747663552) internal successors, (165), 119 states have internal predecessors, (165), 37 states have call successors, (37), 6 states have call predecessors, (37), 6 states have return successors, (37), 37 states have call predecessors, (37), 37 states have call successors, (37) [2024-11-02 12:31:09,045 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2024-11-02 12:31:09,045 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 12:31:09,046 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-02 12:31:09,047 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting add_history_typeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2024-11-02 12:31:09,052 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 12:31:09,053 INFO L85 PathProgramCache]: Analyzing trace with hash 1727366390, now seen corresponding path program 1 times [2024-11-02 12:31:09,065 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-02 12:31:09,066 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [164547227] [2024-11-02 12:31:09,066 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 12:31:09,067 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-02 12:31:09,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 12:31:09,495 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 12:31:09,496 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-02 12:31:09,497 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [164547227] [2024-11-02 12:31:09,498 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [164547227] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-02 12:31:09,499 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-02 12:31:09,500 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-02 12:31:09,502 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1673487789] [2024-11-02 12:31:09,503 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-02 12:31:09,508 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-02 12:31:09,509 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-02 12:31:09,537 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-02 12:31:09,538 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-02 12:31:09,540 INFO L87 Difference]: Start difference. First operand has 159 states, 107 states have (on average 1.5420560747663552) internal successors, (165), 119 states have internal predecessors, (165), 37 states have call successors, (37), 6 states have call predecessors, (37), 6 states have return successors, (37), 37 states have call predecessors, (37), 37 states have call successors, (37) Second operand has 4 states, 4 states have (on average 2.25) internal successors, (9), 3 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-02 12:31:09,777 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-02 12:31:09,778 INFO L93 Difference]: Finished difference Result 337 states and 508 transitions. [2024-11-02 12:31:09,779 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-02 12:31:09,781 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.25) internal successors, (9), 3 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2024-11-02 12:31:09,781 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-02 12:31:09,797 INFO L225 Difference]: With dead ends: 337 [2024-11-02 12:31:09,797 INFO L226 Difference]: Without dead ends: 180 [2024-11-02 12:31:09,805 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 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 12:31:09,810 INFO L432 NwaCegarLoop]: 221 mSDtfsCounter, 34 mSDsluCounter, 435 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 656 SdHoareTripleChecker+Invalid, 70 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-02 12:31:09,811 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [35 Valid, 656 Invalid, 70 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-02 12:31:09,833 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 180 states. [2024-11-02 12:31:09,883 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 180 to 174. [2024-11-02 12:31:09,885 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 174 states, 121 states have (on average 1.5289256198347108) internal successors, (185), 132 states have internal predecessors, (185), 38 states have call successors, (38), 7 states have call predecessors, (38), 7 states have return successors, (38), 38 states have call predecessors, (38), 38 states have call successors, (38) [2024-11-02 12:31:09,888 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 174 states to 174 states and 261 transitions. [2024-11-02 12:31:09,893 INFO L78 Accepts]: Start accepts. Automaton has 174 states and 261 transitions. Word has length 10 [2024-11-02 12:31:09,894 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-02 12:31:09,894 INFO L471 AbstractCegarLoop]: Abstraction has 174 states and 261 transitions. [2024-11-02 12:31:09,894 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.25) internal successors, (9), 3 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-02 12:31:09,895 INFO L276 IsEmpty]: Start isEmpty. Operand 174 states and 261 transitions. [2024-11-02 12:31:09,897 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2024-11-02 12:31:09,897 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 12:31:09,897 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-02 12:31:09,898 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-02 12:31:09,898 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting add_history_typeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2024-11-02 12:31:09,899 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 12:31:09,899 INFO L85 PathProgramCache]: Analyzing trace with hash -2058514214, now seen corresponding path program 1 times [2024-11-02 12:31:09,900 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-02 12:31:09,900 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1003104451] [2024-11-02 12:31:09,900 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 12:31:09,901 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-02 12:31:09,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 12:31:10,126 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 12:31:10,126 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-02 12:31:10,127 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1003104451] [2024-11-02 12:31:10,127 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1003104451] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-02 12:31:10,127 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-02 12:31:10,128 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-02 12:31:10,128 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1022934059] [2024-11-02 12:31:10,128 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-02 12:31:10,130 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-02 12:31:10,130 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-02 12:31:10,131 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-02 12:31:10,132 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-02 12:31:10,133 INFO L87 Difference]: Start difference. First operand 174 states and 261 transitions. Second operand has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-02 12:31:10,291 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-02 12:31:10,295 INFO L93 Difference]: Finished difference Result 372 states and 568 transitions. [2024-11-02 12:31:10,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-02 12:31:10,295 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 14 [2024-11-02 12:31:10,296 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-02 12:31:10,300 INFO L225 Difference]: With dead ends: 372 [2024-11-02 12:31:10,301 INFO L226 Difference]: Without dead ends: 209 [2024-11-02 12:31:10,302 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 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 12:31:10,303 INFO L432 NwaCegarLoop]: 219 mSDtfsCounter, 19 mSDsluCounter, 435 mSDsCounter, 0 mSdLazyCounter, 62 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 654 SdHoareTripleChecker+Invalid, 64 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 62 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-02 12:31:10,306 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 654 Invalid, 64 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 62 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-02 12:31:10,307 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 209 states. [2024-11-02 12:31:10,329 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 209 to 205. [2024-11-02 12:31:10,332 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 205 states, 147 states have (on average 1.4965986394557824) internal successors, (220), 158 states have internal predecessors, (220), 43 states have call successors, (43), 7 states have call predecessors, (43), 7 states have return successors, (43), 43 states have call predecessors, (43), 43 states have call successors, (43) [2024-11-02 12:31:10,335 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 205 states to 205 states and 306 transitions. [2024-11-02 12:31:10,337 INFO L78 Accepts]: Start accepts. Automaton has 205 states and 306 transitions. Word has length 14 [2024-11-02 12:31:10,337 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-02 12:31:10,337 INFO L471 AbstractCegarLoop]: Abstraction has 205 states and 306 transitions. [2024-11-02 12:31:10,338 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-02 12:31:10,338 INFO L276 IsEmpty]: Start isEmpty. Operand 205 states and 306 transitions. [2024-11-02 12:31:10,339 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2024-11-02 12:31:10,339 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 12:31:10,340 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2024-11-02 12:31:10,340 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-02 12:31:10,340 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting add_history_typeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2024-11-02 12:31:10,341 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 12:31:10,341 INFO L85 PathProgramCache]: Analyzing trace with hash 44195684, now seen corresponding path program 1 times [2024-11-02 12:31:10,341 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-02 12:31:10,341 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [88431074] [2024-11-02 12:31:10,342 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 12:31:10,342 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-02 12:31:10,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 12:31:10,583 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-02 12:31:10,584 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-02 12:31:10,584 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [88431074] [2024-11-02 12:31:10,585 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [88431074] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-02 12:31:10,586 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [34880986] [2024-11-02 12:31:10,586 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 12:31:10,587 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-02 12:31:10,588 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_053565cc-9ee8-4d40-ab81-410949ac8397/bin/utaipan-verify-DbMuA5NWw2/z3 [2024-11-02 12:31:10,593 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_053565cc-9ee8-4d40-ab81-410949ac8397/bin/utaipan-verify-DbMuA5NWw2/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-02 12:31:10,595 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_053565cc-9ee8-4d40-ab81-410949ac8397/bin/utaipan-verify-DbMuA5NWw2/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-02 12:31:10,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 12:31:10,756 INFO L255 TraceCheckSpWp]: Trace formula consists of 156 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-02 12:31:10,771 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-02 12:31:10,957 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-02 12:31:10,958 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-02 12:31:10,958 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [34880986] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-02 12:31:10,959 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-02 12:31:10,960 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 8 [2024-11-02 12:31:10,960 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1028366463] [2024-11-02 12:31:10,961 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-02 12:31:10,961 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-02 12:31:10,961 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-02 12:31:10,963 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-02 12:31:10,964 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2024-11-02 12:31:10,964 INFO L87 Difference]: Start difference. First operand 205 states and 306 transitions. Second operand has 5 states, 4 states have (on average 4.5) internal successors, (18), 5 states have internal predecessors, (18), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-02 12:31:11,100 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-02 12:31:11,103 INFO L93 Difference]: Finished difference Result 209 states and 312 transitions. [2024-11-02 12:31:11,104 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-02 12:31:11,104 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 4.5) internal successors, (18), 5 states have internal predecessors, (18), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 26 [2024-11-02 12:31:11,104 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-02 12:31:11,106 INFO L225 Difference]: With dead ends: 209 [2024-11-02 12:31:11,107 INFO L226 Difference]: Without dead ends: 208 [2024-11-02 12:31:11,107 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2024-11-02 12:31:11,112 INFO L432 NwaCegarLoop]: 217 mSDtfsCounter, 19 mSDsluCounter, 626 mSDsCounter, 0 mSdLazyCounter, 78 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 843 SdHoareTripleChecker+Invalid, 79 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 78 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-02 12:31:11,112 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 843 Invalid, 79 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 78 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-02 12:31:11,113 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 208 states. [2024-11-02 12:31:11,149 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 208 to 204. [2024-11-02 12:31:11,149 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 204 states, 147 states have (on average 1.4761904761904763) internal successors, (217), 157 states have internal predecessors, (217), 43 states have call successors, (43), 7 states have call predecessors, (43), 7 states have return successors, (43), 43 states have call predecessors, (43), 43 states have call successors, (43) [2024-11-02 12:31:11,155 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 204 states to 204 states and 303 transitions. [2024-11-02 12:31:11,156 INFO L78 Accepts]: Start accepts. Automaton has 204 states and 303 transitions. Word has length 26 [2024-11-02 12:31:11,156 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-02 12:31:11,156 INFO L471 AbstractCegarLoop]: Abstraction has 204 states and 303 transitions. [2024-11-02 12:31:11,156 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 4.5) internal successors, (18), 5 states have internal predecessors, (18), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-02 12:31:11,157 INFO L276 IsEmpty]: Start isEmpty. Operand 204 states and 303 transitions. [2024-11-02 12:31:11,158 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2024-11-02 12:31:11,158 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 12:31:11,160 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1] [2024-11-02 12:31:11,184 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_053565cc-9ee8-4d40-ab81-410949ac8397/bin/utaipan-verify-DbMuA5NWw2/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-02 12:31:11,360 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_053565cc-9ee8-4d40-ab81-410949ac8397/bin/utaipan-verify-DbMuA5NWw2/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-02 12:31:11,361 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting add_history_typeErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2024-11-02 12:31:11,361 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 12:31:11,361 INFO L85 PathProgramCache]: Analyzing trace with hash 1370066732, now seen corresponding path program 1 times [2024-11-02 12:31:11,362 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-02 12:31:11,362 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1934104380] [2024-11-02 12:31:11,362 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 12:31:11,362 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-02 12:31:11,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 12:31:11,469 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-02 12:31:11,469 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-02 12:31:11,469 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1934104380] [2024-11-02 12:31:11,469 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1934104380] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-02 12:31:11,469 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-02 12:31:11,470 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-02 12:31:11,470 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1743645635] [2024-11-02 12:31:11,470 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-02 12:31:11,470 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-02 12:31:11,471 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-02 12:31:11,471 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-02 12:31:11,471 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-02 12:31:11,472 INFO L87 Difference]: Start difference. First operand 204 states and 303 transitions. Second operand has 4 states, 3 states have (on average 6.333333333333333) internal successors, (19), 4 states have internal predecessors, (19), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-02 12:31:11,563 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-02 12:31:11,563 INFO L93 Difference]: Finished difference Result 208 states and 309 transitions. [2024-11-02 12:31:11,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-02 12:31:11,564 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 6.333333333333333) internal successors, (19), 4 states have internal predecessors, (19), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 27 [2024-11-02 12:31:11,564 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-02 12:31:11,566 INFO L225 Difference]: With dead ends: 208 [2024-11-02 12:31:11,566 INFO L226 Difference]: Without dead ends: 207 [2024-11-02 12:31:11,567 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 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 12:31:11,568 INFO L432 NwaCegarLoop]: 217 mSDtfsCounter, 18 mSDsluCounter, 409 mSDsCounter, 0 mSdLazyCounter, 57 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 626 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 57 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-02 12:31:11,568 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 626 Invalid, 58 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 57 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-02 12:31:11,569 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 207 states. [2024-11-02 12:31:11,586 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 207 to 174. [2024-11-02 12:31:11,590 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 174 states, 123 states have (on average 1.4715447154471544) internal successors, (181), 132 states have internal predecessors, (181), 38 states have call successors, (38), 7 states have call predecessors, (38), 7 states have return successors, (38), 38 states have call predecessors, (38), 38 states have call successors, (38) [2024-11-02 12:31:11,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 174 states to 174 states and 257 transitions. [2024-11-02 12:31:11,594 INFO L78 Accepts]: Start accepts. Automaton has 174 states and 257 transitions. Word has length 27 [2024-11-02 12:31:11,595 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-02 12:31:11,595 INFO L471 AbstractCegarLoop]: Abstraction has 174 states and 257 transitions. [2024-11-02 12:31:11,595 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 6.333333333333333) internal successors, (19), 4 states have internal predecessors, (19), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-02 12:31:11,595 INFO L276 IsEmpty]: Start isEmpty. Operand 174 states and 257 transitions. [2024-11-02 12:31:11,599 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2024-11-02 12:31:11,602 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 12:31:11,602 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-02 12:31:11,604 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-02 12:31:11,604 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2024-11-02 12:31:11,605 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 12:31:11,605 INFO L85 PathProgramCache]: Analyzing trace with hash -2112071065, now seen corresponding path program 1 times [2024-11-02 12:31:11,606 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-02 12:31:11,607 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [660807066] [2024-11-02 12:31:11,607 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 12:31:11,607 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-02 12:31:11,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 12:31:11,818 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2024-11-02 12:31:11,818 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-02 12:31:11,818 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [660807066] [2024-11-02 12:31:11,818 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [660807066] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-02 12:31:11,818 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1715061896] [2024-11-02 12:31:11,819 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 12:31:11,819 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-02 12:31:11,819 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_053565cc-9ee8-4d40-ab81-410949ac8397/bin/utaipan-verify-DbMuA5NWw2/z3 [2024-11-02 12:31:11,821 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_053565cc-9ee8-4d40-ab81-410949ac8397/bin/utaipan-verify-DbMuA5NWw2/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-02 12:31:11,822 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_053565cc-9ee8-4d40-ab81-410949ac8397/bin/utaipan-verify-DbMuA5NWw2/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-02 12:31:12,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 12:31:12,021 INFO L255 TraceCheckSpWp]: Trace formula consists of 479 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-02 12:31:12,027 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-02 12:31:12,066 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2024-11-02 12:31:12,066 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-02 12:31:12,066 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1715061896] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-02 12:31:12,066 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-02 12:31:12,067 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 7 [2024-11-02 12:31:12,067 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [295208344] [2024-11-02 12:31:12,067 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-02 12:31:12,068 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-02 12:31:12,068 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-02 12:31:12,068 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-02 12:31:12,069 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-02 12:31:12,069 INFO L87 Difference]: Start difference. First operand 174 states and 257 transitions. Second operand has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-02 12:31:12,191 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-02 12:31:12,191 INFO L93 Difference]: Finished difference Result 299 states and 447 transitions. [2024-11-02 12:31:12,192 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-02 12:31:12,192 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 79 [2024-11-02 12:31:12,192 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-02 12:31:12,194 INFO L225 Difference]: With dead ends: 299 [2024-11-02 12:31:12,194 INFO L226 Difference]: Without dead ends: 181 [2024-11-02 12:31:12,195 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 79 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-11-02 12:31:12,196 INFO L432 NwaCegarLoop]: 212 mSDtfsCounter, 10 mSDsluCounter, 417 mSDsCounter, 0 mSdLazyCounter, 74 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 629 SdHoareTripleChecker+Invalid, 76 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 74 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-02 12:31:12,196 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 629 Invalid, 76 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 74 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-02 12:31:12,197 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 181 states. [2024-11-02 12:31:12,208 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 181 to 181. [2024-11-02 12:31:12,209 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 181 states, 128 states have (on average 1.4765625) internal successors, (189), 138 states have internal predecessors, (189), 39 states have call successors, (39), 8 states have call predecessors, (39), 8 states have return successors, (39), 39 states have call predecessors, (39), 39 states have call successors, (39) [2024-11-02 12:31:12,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 181 states to 181 states and 267 transitions. [2024-11-02 12:31:12,211 INFO L78 Accepts]: Start accepts. Automaton has 181 states and 267 transitions. Word has length 79 [2024-11-02 12:31:12,211 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-02 12:31:12,211 INFO L471 AbstractCegarLoop]: Abstraction has 181 states and 267 transitions. [2024-11-02 12:31:12,212 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-02 12:31:12,212 INFO L276 IsEmpty]: Start isEmpty. Operand 181 states and 267 transitions. [2024-11-02 12:31:12,214 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2024-11-02 12:31:12,215 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 12:31:12,215 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-02 12:31:12,236 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_053565cc-9ee8-4d40-ab81-410949ac8397/bin/utaipan-verify-DbMuA5NWw2/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-02 12:31:12,419 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_053565cc-9ee8-4d40-ab81-410949ac8397/bin/utaipan-verify-DbMuA5NWw2/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-02 12:31:12,420 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2024-11-02 12:31:12,420 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 12:31:12,420 INFO L85 PathProgramCache]: Analyzing trace with hash -1480313873, now seen corresponding path program 1 times [2024-11-02 12:31:12,421 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-02 12:31:12,421 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1232039219] [2024-11-02 12:31:12,421 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 12:31:12,421 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-02 12:31:12,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 12:31:12,665 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2024-11-02 12:31:12,665 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-02 12:31:12,665 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1232039219] [2024-11-02 12:31:12,665 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1232039219] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-02 12:31:12,665 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1936260434] [2024-11-02 12:31:12,666 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 12:31:12,666 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-02 12:31:12,666 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_053565cc-9ee8-4d40-ab81-410949ac8397/bin/utaipan-verify-DbMuA5NWw2/z3 [2024-11-02 12:31:12,668 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_053565cc-9ee8-4d40-ab81-410949ac8397/bin/utaipan-verify-DbMuA5NWw2/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-02 12:31:12,670 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_053565cc-9ee8-4d40-ab81-410949ac8397/bin/utaipan-verify-DbMuA5NWw2/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-02 12:31:12,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 12:31:12,852 INFO L255 TraceCheckSpWp]: Trace formula consists of 481 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-02 12:31:12,855 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-02 12:31:12,886 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-02 12:31:12,886 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-02 12:31:12,886 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1936260434] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-02 12:31:12,886 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-02 12:31:12,886 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 7 [2024-11-02 12:31:12,887 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [719171643] [2024-11-02 12:31:12,887 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-02 12:31:12,887 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-02 12:31:12,887 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-02 12:31:12,888 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-02 12:31:12,888 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-02 12:31:12,888 INFO L87 Difference]: Start difference. First operand 181 states and 267 transitions. Second operand has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-02 12:31:12,999 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-02 12:31:12,999 INFO L93 Difference]: Finished difference Result 313 states and 466 transitions. [2024-11-02 12:31:13,000 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-02 12:31:13,000 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 81 [2024-11-02 12:31:13,000 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-02 12:31:13,002 INFO L225 Difference]: With dead ends: 313 [2024-11-02 12:31:13,002 INFO L226 Difference]: Without dead ends: 188 [2024-11-02 12:31:13,002 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 81 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-11-02 12:31:13,003 INFO L432 NwaCegarLoop]: 211 mSDtfsCounter, 8 mSDsluCounter, 415 mSDsCounter, 0 mSdLazyCounter, 75 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 626 SdHoareTripleChecker+Invalid, 78 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 75 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-02 12:31:13,003 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 626 Invalid, 78 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 75 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-02 12:31:13,004 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 188 states. [2024-11-02 12:31:13,014 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 188 to 188. [2024-11-02 12:31:13,014 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 188 states, 133 states have (on average 1.481203007518797) internal successors, (197), 144 states have internal predecessors, (197), 40 states have call successors, (40), 9 states have call predecessors, (40), 9 states have return successors, (40), 40 states have call predecessors, (40), 40 states have call successors, (40) [2024-11-02 12:31:13,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 188 states to 188 states and 277 transitions. [2024-11-02 12:31:13,016 INFO L78 Accepts]: Start accepts. Automaton has 188 states and 277 transitions. Word has length 81 [2024-11-02 12:31:13,016 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-02 12:31:13,017 INFO L471 AbstractCegarLoop]: Abstraction has 188 states and 277 transitions. [2024-11-02 12:31:13,017 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-02 12:31:13,017 INFO L276 IsEmpty]: Start isEmpty. Operand 188 states and 277 transitions. [2024-11-02 12:31:13,018 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2024-11-02 12:31:13,019 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 12:31:13,019 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-02 12:31:13,040 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_053565cc-9ee8-4d40-ab81-410949ac8397/bin/utaipan-verify-DbMuA5NWw2/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-02 12:31:13,219 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_053565cc-9ee8-4d40-ab81-410949ac8397/bin/utaipan-verify-DbMuA5NWw2/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2024-11-02 12:31:13,220 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2024-11-02 12:31:13,220 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 12:31:13,220 INFO L85 PathProgramCache]: Analyzing trace with hash -933220314, now seen corresponding path program 1 times [2024-11-02 12:31:13,221 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-02 12:31:13,221 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [934729674] [2024-11-02 12:31:13,221 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 12:31:13,221 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-02 12:31:13,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 12:31:13,402 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2024-11-02 12:31:13,403 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-02 12:31:13,403 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [934729674] [2024-11-02 12:31:13,403 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [934729674] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-02 12:31:13,403 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2059703567] [2024-11-02 12:31:13,403 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 12:31:13,403 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-02 12:31:13,404 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_053565cc-9ee8-4d40-ab81-410949ac8397/bin/utaipan-verify-DbMuA5NWw2/z3 [2024-11-02 12:31:13,406 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_053565cc-9ee8-4d40-ab81-410949ac8397/bin/utaipan-verify-DbMuA5NWw2/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-02 12:31:13,407 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_053565cc-9ee8-4d40-ab81-410949ac8397/bin/utaipan-verify-DbMuA5NWw2/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-02 12:31:13,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 12:31:13,591 INFO L255 TraceCheckSpWp]: Trace formula consists of 482 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-02 12:31:13,594 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-02 12:31:13,627 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2024-11-02 12:31:13,627 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-02 12:31:13,627 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2059703567] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-02 12:31:13,627 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-02 12:31:13,627 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 7 [2024-11-02 12:31:13,627 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [585144553] [2024-11-02 12:31:13,628 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-02 12:31:13,628 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-02 12:31:13,628 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-02 12:31:13,628 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-02 12:31:13,629 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-02 12:31:13,630 INFO L87 Difference]: Start difference. First operand 188 states and 277 transitions. Second operand has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-02 12:31:13,774 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-02 12:31:13,774 INFO L93 Difference]: Finished difference Result 367 states and 552 transitions. [2024-11-02 12:31:13,774 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-02 12:31:13,775 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 82 [2024-11-02 12:31:13,776 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-02 12:31:13,780 INFO L225 Difference]: With dead ends: 367 [2024-11-02 12:31:13,780 INFO L226 Difference]: Without dead ends: 196 [2024-11-02 12:31:13,781 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 82 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-11-02 12:31:13,782 INFO L432 NwaCegarLoop]: 213 mSDtfsCounter, 11 mSDsluCounter, 407 mSDsCounter, 0 mSdLazyCounter, 81 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 620 SdHoareTripleChecker+Invalid, 89 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 81 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-02 12:31:13,783 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 620 Invalid, 89 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 81 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-02 12:31:13,783 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 196 states. [2024-11-02 12:31:13,794 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 196 to 196. [2024-11-02 12:31:13,795 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 196 states, 139 states have (on average 1.4820143884892085) internal successors, (206), 150 states have internal predecessors, (206), 41 states have call successors, (41), 10 states have call predecessors, (41), 10 states have return successors, (41), 41 states have call predecessors, (41), 41 states have call successors, (41) [2024-11-02 12:31:13,797 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 196 states to 196 states and 288 transitions. [2024-11-02 12:31:13,797 INFO L78 Accepts]: Start accepts. Automaton has 196 states and 288 transitions. Word has length 82 [2024-11-02 12:31:13,798 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-02 12:31:13,798 INFO L471 AbstractCegarLoop]: Abstraction has 196 states and 288 transitions. [2024-11-02 12:31:13,798 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-02 12:31:13,799 INFO L276 IsEmpty]: Start isEmpty. Operand 196 states and 288 transitions. [2024-11-02 12:31:13,800 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2024-11-02 12:31:13,800 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 12:31:13,800 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-02 12:31:13,822 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_053565cc-9ee8-4d40-ab81-410949ac8397/bin/utaipan-verify-DbMuA5NWw2/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-11-02 12:31:14,001 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_053565cc-9ee8-4d40-ab81-410949ac8397/bin/utaipan-verify-DbMuA5NWw2/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2024-11-02 12:31:14,001 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2024-11-02 12:31:14,002 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 12:31:14,002 INFO L85 PathProgramCache]: Analyzing trace with hash -994636402, now seen corresponding path program 1 times [2024-11-02 12:31:14,002 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-02 12:31:14,002 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [290802448] [2024-11-02 12:31:14,002 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 12:31:14,002 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-02 12:31:14,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 12:31:14,179 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2024-11-02 12:31:14,179 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-02 12:31:14,179 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [290802448] [2024-11-02 12:31:14,179 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [290802448] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-02 12:31:14,180 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [749344448] [2024-11-02 12:31:14,180 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 12:31:14,180 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-02 12:31:14,180 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_053565cc-9ee8-4d40-ab81-410949ac8397/bin/utaipan-verify-DbMuA5NWw2/z3 [2024-11-02 12:31:14,182 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_053565cc-9ee8-4d40-ab81-410949ac8397/bin/utaipan-verify-DbMuA5NWw2/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-02 12:31:14,183 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_053565cc-9ee8-4d40-ab81-410949ac8397/bin/utaipan-verify-DbMuA5NWw2/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-02 12:31:14,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 12:31:14,352 INFO L255 TraceCheckSpWp]: Trace formula consists of 484 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-02 12:31:14,355 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-02 12:31:14,387 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-02 12:31:14,388 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-02 12:31:14,388 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [749344448] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-02 12:31:14,388 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-02 12:31:14,388 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 7 [2024-11-02 12:31:14,388 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1122517753] [2024-11-02 12:31:14,388 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-02 12:31:14,389 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-02 12:31:14,389 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-02 12:31:14,389 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-02 12:31:14,389 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-02 12:31:14,390 INFO L87 Difference]: Start difference. First operand 196 states and 288 transitions. Second operand has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-02 12:31:14,537 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-02 12:31:14,538 INFO L93 Difference]: Finished difference Result 383 states and 571 transitions. [2024-11-02 12:31:14,538 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-02 12:31:14,539 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 84 [2024-11-02 12:31:14,540 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-02 12:31:14,542 INFO L225 Difference]: With dead ends: 383 [2024-11-02 12:31:14,542 INFO L226 Difference]: Without dead ends: 204 [2024-11-02 12:31:14,543 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 84 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-11-02 12:31:14,545 INFO L432 NwaCegarLoop]: 210 mSDtfsCounter, 9 mSDsluCounter, 401 mSDsCounter, 0 mSdLazyCounter, 86 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 611 SdHoareTripleChecker+Invalid, 95 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 86 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-02 12:31:14,545 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 611 Invalid, 95 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 86 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-02 12:31:14,546 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 204 states. [2024-11-02 12:31:14,557 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 204 to 204. [2024-11-02 12:31:14,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 204 states, 145 states have (on average 1.4827586206896552) internal successors, (215), 156 states have internal predecessors, (215), 42 states have call successors, (42), 11 states have call predecessors, (42), 11 states have return successors, (42), 42 states have call predecessors, (42), 42 states have call successors, (42) [2024-11-02 12:31:14,559 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 204 states to 204 states and 299 transitions. [2024-11-02 12:31:14,560 INFO L78 Accepts]: Start accepts. Automaton has 204 states and 299 transitions. Word has length 84 [2024-11-02 12:31:14,560 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-02 12:31:14,560 INFO L471 AbstractCegarLoop]: Abstraction has 204 states and 299 transitions. [2024-11-02 12:31:14,561 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-02 12:31:14,561 INFO L276 IsEmpty]: Start isEmpty. Operand 204 states and 299 transitions. [2024-11-02 12:31:14,562 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2024-11-02 12:31:14,563 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 12:31:14,563 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-02 12:31:14,588 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_053565cc-9ee8-4d40-ab81-410949ac8397/bin/utaipan-verify-DbMuA5NWw2/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-11-02 12:31:14,765 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_053565cc-9ee8-4d40-ab81-410949ac8397/bin/utaipan-verify-DbMuA5NWw2/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-02 12:31:14,765 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2024-11-02 12:31:14,765 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 12:31:14,765 INFO L85 PathProgramCache]: Analyzing trace with hash -1018083227, now seen corresponding path program 1 times [2024-11-02 12:31:14,765 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-02 12:31:14,766 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1196641136] [2024-11-02 12:31:14,766 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 12:31:14,766 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-02 12:31:14,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 12:31:14,911 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2024-11-02 12:31:14,911 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-02 12:31:14,912 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1196641136] [2024-11-02 12:31:14,912 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1196641136] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-02 12:31:14,912 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1856477698] [2024-11-02 12:31:14,912 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 12:31:14,912 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-02 12:31:14,913 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_053565cc-9ee8-4d40-ab81-410949ac8397/bin/utaipan-verify-DbMuA5NWw2/z3 [2024-11-02 12:31:14,914 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_053565cc-9ee8-4d40-ab81-410949ac8397/bin/utaipan-verify-DbMuA5NWw2/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-02 12:31:14,916 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_053565cc-9ee8-4d40-ab81-410949ac8397/bin/utaipan-verify-DbMuA5NWw2/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-02 12:31:15,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 12:31:15,086 INFO L255 TraceCheckSpWp]: Trace formula consists of 485 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-02 12:31:15,089 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-02 12:31:15,122 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-11-02 12:31:15,122 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-02 12:31:15,122 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1856477698] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-02 12:31:15,122 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-02 12:31:15,123 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 7 [2024-11-02 12:31:15,123 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [196543770] [2024-11-02 12:31:15,123 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-02 12:31:15,123 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-02 12:31:15,124 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-02 12:31:15,124 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-02 12:31:15,124 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-02 12:31:15,125 INFO L87 Difference]: Start difference. First operand 204 states and 299 transitions. Second operand has 4 states, 3 states have (on average 16.333333333333332) internal successors, (49), 4 states have internal predecessors, (49), 2 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-02 12:31:15,230 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-02 12:31:15,231 INFO L93 Difference]: Finished difference Result 212 states and 314 transitions. [2024-11-02 12:31:15,231 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-02 12:31:15,231 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 16.333333333333332) internal successors, (49), 4 states have internal predecessors, (49), 2 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 85 [2024-11-02 12:31:15,232 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-02 12:31:15,233 INFO L225 Difference]: With dead ends: 212 [2024-11-02 12:31:15,233 INFO L226 Difference]: Without dead ends: 211 [2024-11-02 12:31:15,234 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 84 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-02 12:31:15,236 INFO L432 NwaCegarLoop]: 209 mSDtfsCounter, 12 mSDsluCounter, 407 mSDsCounter, 0 mSdLazyCounter, 79 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 616 SdHoareTripleChecker+Invalid, 80 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 79 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-02 12:31:15,237 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 616 Invalid, 80 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 79 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-02 12:31:15,237 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 211 states. [2024-11-02 12:31:15,251 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 211 to 203. [2024-11-02 12:31:15,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 203 states, 145 states have (on average 1.4758620689655173) internal successors, (214), 155 states have internal predecessors, (214), 42 states have call successors, (42), 11 states have call predecessors, (42), 11 states have return successors, (42), 42 states have call predecessors, (42), 42 states have call successors, (42) [2024-11-02 12:31:15,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 203 states to 203 states and 298 transitions. [2024-11-02 12:31:15,253 INFO L78 Accepts]: Start accepts. Automaton has 203 states and 298 transitions. Word has length 85 [2024-11-02 12:31:15,254 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-02 12:31:15,254 INFO L471 AbstractCegarLoop]: Abstraction has 203 states and 298 transitions. [2024-11-02 12:31:15,254 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 16.333333333333332) internal successors, (49), 4 states have internal predecessors, (49), 2 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-02 12:31:15,254 INFO L276 IsEmpty]: Start isEmpty. Operand 203 states and 298 transitions. [2024-11-02 12:31:15,255 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2024-11-02 12:31:15,257 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 12:31:15,257 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-02 12:31:15,279 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_053565cc-9ee8-4d40-ab81-410949ac8397/bin/utaipan-verify-DbMuA5NWw2/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-02 12:31:15,457 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_053565cc-9ee8-4d40-ab81-410949ac8397/bin/utaipan-verify-DbMuA5NWw2/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-02 12:31:15,458 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2024-11-02 12:31:15,458 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 12:31:15,458 INFO L85 PathProgramCache]: Analyzing trace with hash -1495808643, now seen corresponding path program 1 times [2024-11-02 12:31:15,458 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-02 12:31:15,458 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1927355839] [2024-11-02 12:31:15,459 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 12:31:15,459 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-02 12:31:15,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 12:31:15,668 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2024-11-02 12:31:15,669 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-02 12:31:15,669 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1927355839] [2024-11-02 12:31:15,669 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1927355839] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-02 12:31:15,669 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [496000868] [2024-11-02 12:31:15,669 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 12:31:15,670 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-02 12:31:15,670 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_053565cc-9ee8-4d40-ab81-410949ac8397/bin/utaipan-verify-DbMuA5NWw2/z3 [2024-11-02 12:31:15,674 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_053565cc-9ee8-4d40-ab81-410949ac8397/bin/utaipan-verify-DbMuA5NWw2/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-02 12:31:15,676 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_053565cc-9ee8-4d40-ab81-410949ac8397/bin/utaipan-verify-DbMuA5NWw2/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-02 12:31:15,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 12:31:15,890 INFO L255 TraceCheckSpWp]: Trace formula consists of 486 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-02 12:31:15,894 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-02 12:31:15,936 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-11-02 12:31:15,937 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-02 12:31:15,937 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [496000868] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-02 12:31:15,937 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-02 12:31:15,938 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 7 [2024-11-02 12:31:15,938 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1043511246] [2024-11-02 12:31:15,938 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-02 12:31:15,939 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-02 12:31:15,939 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-02 12:31:15,940 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-02 12:31:15,940 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-02 12:31:15,940 INFO L87 Difference]: Start difference. First operand 203 states and 298 transitions. Second operand has 4 states, 3 states have (on average 16.666666666666668) internal successors, (50), 4 states have internal predecessors, (50), 2 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-02 12:31:16,054 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-02 12:31:16,055 INFO L93 Difference]: Finished difference Result 360 states and 537 transitions. [2024-11-02 12:31:16,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-02 12:31:16,056 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 16.666666666666668) internal successors, (50), 4 states have internal predecessors, (50), 2 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 86 [2024-11-02 12:31:16,056 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-02 12:31:16,058 INFO L225 Difference]: With dead ends: 360 [2024-11-02 12:31:16,058 INFO L226 Difference]: Without dead ends: 213 [2024-11-02 12:31:16,059 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 85 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-02 12:31:16,060 INFO L432 NwaCegarLoop]: 216 mSDtfsCounter, 11 mSDsluCounter, 418 mSDsCounter, 0 mSdLazyCounter, 74 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 634 SdHoareTripleChecker+Invalid, 76 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 74 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-02 12:31:16,060 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 634 Invalid, 76 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 74 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-02 12:31:16,061 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 213 states. [2024-11-02 12:31:16,071 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 213 to 213. [2024-11-02 12:31:16,072 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 213 states, 154 states have (on average 1.474025974025974) internal successors, (227), 163 states have internal predecessors, (227), 44 states have call successors, (44), 11 states have call predecessors, (44), 11 states have return successors, (44), 44 states have call predecessors, (44), 44 states have call successors, (44) [2024-11-02 12:31:16,074 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 213 states to 213 states and 315 transitions. [2024-11-02 12:31:16,075 INFO L78 Accepts]: Start accepts. Automaton has 213 states and 315 transitions. Word has length 86 [2024-11-02 12:31:16,075 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-02 12:31:16,075 INFO L471 AbstractCegarLoop]: Abstraction has 213 states and 315 transitions. [2024-11-02 12:31:16,075 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 16.666666666666668) internal successors, (50), 4 states have internal predecessors, (50), 2 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-02 12:31:16,075 INFO L276 IsEmpty]: Start isEmpty. Operand 213 states and 315 transitions. [2024-11-02 12:31:16,077 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2024-11-02 12:31:16,077 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 12:31:16,077 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-02 12:31:16,101 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_053565cc-9ee8-4d40-ab81-410949ac8397/bin/utaipan-verify-DbMuA5NWw2/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-11-02 12:31:16,279 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_053565cc-9ee8-4d40-ab81-410949ac8397/bin/utaipan-verify-DbMuA5NWw2/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-02 12:31:16,280 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2024-11-02 12:31:16,280 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 12:31:16,281 INFO L85 PathProgramCache]: Analyzing trace with hash -1460572076, now seen corresponding path program 1 times [2024-11-02 12:31:16,281 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-02 12:31:16,281 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [879706954] [2024-11-02 12:31:16,282 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 12:31:16,282 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-02 12:31:16,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 12:31:16,427 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2024-11-02 12:31:16,428 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-02 12:31:16,428 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [879706954] [2024-11-02 12:31:16,428 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [879706954] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-02 12:31:16,428 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [407549237] [2024-11-02 12:31:16,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 12:31:16,429 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-02 12:31:16,429 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_053565cc-9ee8-4d40-ab81-410949ac8397/bin/utaipan-verify-DbMuA5NWw2/z3 [2024-11-02 12:31:16,431 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_053565cc-9ee8-4d40-ab81-410949ac8397/bin/utaipan-verify-DbMuA5NWw2/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-02 12:31:16,432 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_053565cc-9ee8-4d40-ab81-410949ac8397/bin/utaipan-verify-DbMuA5NWw2/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-02 12:31:16,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 12:31:16,614 INFO L255 TraceCheckSpWp]: Trace formula consists of 506 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-02 12:31:16,619 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-02 12:31:16,664 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2024-11-02 12:31:16,665 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-02 12:31:16,665 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [407549237] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-02 12:31:16,665 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-02 12:31:16,665 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 7 [2024-11-02 12:31:16,666 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [628124385] [2024-11-02 12:31:16,666 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-02 12:31:16,666 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-02 12:31:16,666 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-02 12:31:16,667 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-02 12:31:16,667 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-02 12:31:16,667 INFO L87 Difference]: Start difference. First operand 213 states and 315 transitions. Second operand has 4 states, 3 states have (on average 17.0) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-02 12:31:16,774 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-02 12:31:16,774 INFO L93 Difference]: Finished difference Result 224 states and 334 transitions. [2024-11-02 12:31:16,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-02 12:31:16,775 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 17.0) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 92 [2024-11-02 12:31:16,775 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-02 12:31:16,777 INFO L225 Difference]: With dead ends: 224 [2024-11-02 12:31:16,777 INFO L226 Difference]: Without dead ends: 223 [2024-11-02 12:31:16,778 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 96 GetRequests, 91 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-02 12:31:16,778 INFO L432 NwaCegarLoop]: 216 mSDtfsCounter, 10 mSDsluCounter, 414 mSDsCounter, 0 mSdLazyCounter, 86 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 630 SdHoareTripleChecker+Invalid, 87 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 86 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-02 12:31:16,779 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 630 Invalid, 87 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 86 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-02 12:31:16,779 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 223 states. [2024-11-02 12:31:16,794 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 223 to 214. [2024-11-02 12:31:16,795 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 214 states, 155 states have (on average 1.4709677419354839) internal successors, (228), 164 states have internal predecessors, (228), 44 states have call successors, (44), 11 states have call predecessors, (44), 11 states have return successors, (44), 44 states have call predecessors, (44), 44 states have call successors, (44) [2024-11-02 12:31:16,796 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 214 states to 214 states and 316 transitions. [2024-11-02 12:31:16,797 INFO L78 Accepts]: Start accepts. Automaton has 214 states and 316 transitions. Word has length 92 [2024-11-02 12:31:16,797 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-02 12:31:16,797 INFO L471 AbstractCegarLoop]: Abstraction has 214 states and 316 transitions. [2024-11-02 12:31:16,797 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 17.0) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-02 12:31:16,798 INFO L276 IsEmpty]: Start isEmpty. Operand 214 states and 316 transitions. [2024-11-02 12:31:16,799 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2024-11-02 12:31:16,799 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 12:31:16,799 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-02 12:31:16,820 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_053565cc-9ee8-4d40-ab81-410949ac8397/bin/utaipan-verify-DbMuA5NWw2/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-11-02 12:31:17,000 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_053565cc-9ee8-4d40-ab81-410949ac8397/bin/utaipan-verify-DbMuA5NWw2/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-02 12:31:17,000 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2024-11-02 12:31:17,000 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 12:31:17,001 INFO L85 PathProgramCache]: Analyzing trace with hash 1966906234, now seen corresponding path program 1 times [2024-11-02 12:31:17,001 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-02 12:31:17,001 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [81029676] [2024-11-02 12:31:17,001 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 12:31:17,001 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-02 12:31:17,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 12:31:17,169 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2024-11-02 12:31:17,169 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-02 12:31:17,169 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [81029676] [2024-11-02 12:31:17,170 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [81029676] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-02 12:31:17,170 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1041165443] [2024-11-02 12:31:17,170 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 12:31:17,170 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-02 12:31:17,170 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_053565cc-9ee8-4d40-ab81-410949ac8397/bin/utaipan-verify-DbMuA5NWw2/z3 [2024-11-02 12:31:17,173 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_053565cc-9ee8-4d40-ab81-410949ac8397/bin/utaipan-verify-DbMuA5NWw2/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-02 12:31:17,174 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_053565cc-9ee8-4d40-ab81-410949ac8397/bin/utaipan-verify-DbMuA5NWw2/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-02 12:31:17,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 12:31:17,376 INFO L255 TraceCheckSpWp]: Trace formula consists of 507 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-02 12:31:17,378 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-02 12:31:17,410 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2024-11-02 12:31:17,410 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-02 12:31:17,410 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1041165443] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-02 12:31:17,411 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-02 12:31:17,411 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 7 [2024-11-02 12:31:17,411 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1671010235] [2024-11-02 12:31:17,411 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-02 12:31:17,412 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-02 12:31:17,412 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-02 12:31:17,412 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-02 12:31:17,412 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-02 12:31:17,413 INFO L87 Difference]: Start difference. First operand 214 states and 316 transitions. Second operand has 4 states, 3 states have (on average 17.333333333333332) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-02 12:31:17,514 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-02 12:31:17,514 INFO L93 Difference]: Finished difference Result 216 states and 318 transitions. [2024-11-02 12:31:17,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-02 12:31:17,515 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 17.333333333333332) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 93 [2024-11-02 12:31:17,515 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-02 12:31:17,517 INFO L225 Difference]: With dead ends: 216 [2024-11-02 12:31:17,518 INFO L226 Difference]: Without dead ends: 215 [2024-11-02 12:31:17,518 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 92 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-02 12:31:17,519 INFO L432 NwaCegarLoop]: 223 mSDtfsCounter, 9 mSDsluCounter, 422 mSDsCounter, 0 mSdLazyCounter, 80 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 645 SdHoareTripleChecker+Invalid, 80 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 80 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-02 12:31:17,519 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 645 Invalid, 80 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 80 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-02 12:31:17,520 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 215 states. [2024-11-02 12:31:17,531 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 215 to 215. [2024-11-02 12:31:17,532 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 215 states, 156 states have (on average 1.4679487179487178) internal successors, (229), 165 states have internal predecessors, (229), 44 states have call successors, (44), 11 states have call predecessors, (44), 11 states have return successors, (44), 44 states have call predecessors, (44), 44 states have call successors, (44) [2024-11-02 12:31:17,534 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 215 states to 215 states and 317 transitions. [2024-11-02 12:31:17,534 INFO L78 Accepts]: Start accepts. Automaton has 215 states and 317 transitions. Word has length 93 [2024-11-02 12:31:17,535 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-02 12:31:17,535 INFO L471 AbstractCegarLoop]: Abstraction has 215 states and 317 transitions. [2024-11-02 12:31:17,535 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 17.333333333333332) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-02 12:31:17,535 INFO L276 IsEmpty]: Start isEmpty. Operand 215 states and 317 transitions. [2024-11-02 12:31:17,537 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2024-11-02 12:31:17,539 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 12:31:17,540 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-02 12:31:17,560 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_053565cc-9ee8-4d40-ab81-410949ac8397/bin/utaipan-verify-DbMuA5NWw2/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2024-11-02 12:31:17,740 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_053565cc-9ee8-4d40-ab81-410949ac8397/bin/utaipan-verify-DbMuA5NWw2/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2024-11-02 12:31:17,740 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2024-11-02 12:31:17,741 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 12:31:17,741 INFO L85 PathProgramCache]: Analyzing trace with hash -1753777776, now seen corresponding path program 1 times [2024-11-02 12:31:17,741 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-02 12:31:17,741 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2026036442] [2024-11-02 12:31:17,741 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 12:31:17,741 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-02 12:31:17,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 12:31:17,904 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2024-11-02 12:31:17,905 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-02 12:31:17,905 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2026036442] [2024-11-02 12:31:17,905 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2026036442] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-02 12:31:17,905 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1114375214] [2024-11-02 12:31:17,906 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 12:31:17,906 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-02 12:31:17,906 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_053565cc-9ee8-4d40-ab81-410949ac8397/bin/utaipan-verify-DbMuA5NWw2/z3 [2024-11-02 12:31:17,908 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_053565cc-9ee8-4d40-ab81-410949ac8397/bin/utaipan-verify-DbMuA5NWw2/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-02 12:31:17,911 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_053565cc-9ee8-4d40-ab81-410949ac8397/bin/utaipan-verify-DbMuA5NWw2/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-11-02 12:31:18,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 12:31:18,108 INFO L255 TraceCheckSpWp]: Trace formula consists of 513 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-02 12:31:18,110 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-02 12:31:18,158 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2024-11-02 12:31:18,158 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-02 12:31:18,159 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1114375214] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-02 12:31:18,159 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-02 12:31:18,159 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 8 [2024-11-02 12:31:18,160 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2124865213] [2024-11-02 12:31:18,160 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-02 12:31:18,160 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-02 12:31:18,160 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-02 12:31:18,161 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-02 12:31:18,161 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-02 12:31:18,161 INFO L87 Difference]: Start difference. First operand 215 states and 317 transitions. Second operand has 5 states, 4 states have (on average 13.25) internal successors, (53), 5 states have internal predecessors, (53), 2 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-02 12:31:18,292 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-02 12:31:18,292 INFO L93 Difference]: Finished difference Result 220 states and 327 transitions. [2024-11-02 12:31:18,293 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-02 12:31:18,293 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 13.25) internal successors, (53), 5 states have internal predecessors, (53), 2 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 94 [2024-11-02 12:31:18,293 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-02 12:31:18,295 INFO L225 Difference]: With dead ends: 220 [2024-11-02 12:31:18,295 INFO L226 Difference]: Without dead ends: 219 [2024-11-02 12:31:18,296 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 92 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-02 12:31:18,296 INFO L432 NwaCegarLoop]: 205 mSDtfsCounter, 12 mSDsluCounter, 601 mSDsCounter, 0 mSdLazyCounter, 110 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 806 SdHoareTripleChecker+Invalid, 113 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 110 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-02 12:31:18,297 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 806 Invalid, 113 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 110 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-02 12:31:18,297 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 219 states. [2024-11-02 12:31:18,307 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 219 to 214. [2024-11-02 12:31:18,308 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 214 states, 156 states have (on average 1.4615384615384615) internal successors, (228), 164 states have internal predecessors, (228), 44 states have call successors, (44), 11 states have call predecessors, (44), 11 states have return successors, (44), 44 states have call predecessors, (44), 44 states have call successors, (44) [2024-11-02 12:31:18,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 214 states to 214 states and 316 transitions. [2024-11-02 12:31:18,310 INFO L78 Accepts]: Start accepts. Automaton has 214 states and 316 transitions. Word has length 94 [2024-11-02 12:31:18,310 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-02 12:31:18,310 INFO L471 AbstractCegarLoop]: Abstraction has 214 states and 316 transitions. [2024-11-02 12:31:18,311 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 13.25) internal successors, (53), 5 states have internal predecessors, (53), 2 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-02 12:31:18,311 INFO L276 IsEmpty]: Start isEmpty. Operand 214 states and 316 transitions. [2024-11-02 12:31:18,313 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2024-11-02 12:31:18,313 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 12:31:18,313 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-02 12:31:18,336 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_053565cc-9ee8-4d40-ab81-410949ac8397/bin/utaipan-verify-DbMuA5NWw2/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2024-11-02 12:31:18,514 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_053565cc-9ee8-4d40-ab81-410949ac8397/bin/utaipan-verify-DbMuA5NWw2/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2024-11-02 12:31:18,514 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2024-11-02 12:31:18,514 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 12:31:18,514 INFO L85 PathProgramCache]: Analyzing trace with hash 1467464126, now seen corresponding path program 1 times [2024-11-02 12:31:18,515 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-02 12:31:18,515 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [498729706] [2024-11-02 12:31:18,515 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 12:31:18,515 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-02 12:31:18,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 12:31:18,648 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2024-11-02 12:31:18,648 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-02 12:31:18,648 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [498729706] [2024-11-02 12:31:18,648 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [498729706] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-02 12:31:18,649 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [973308322] [2024-11-02 12:31:18,649 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 12:31:18,649 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-02 12:31:18,649 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_053565cc-9ee8-4d40-ab81-410949ac8397/bin/utaipan-verify-DbMuA5NWw2/z3 [2024-11-02 12:31:18,651 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_053565cc-9ee8-4d40-ab81-410949ac8397/bin/utaipan-verify-DbMuA5NWw2/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-02 12:31:18,655 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_053565cc-9ee8-4d40-ab81-410949ac8397/bin/utaipan-verify-DbMuA5NWw2/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-11-02 12:31:18,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 12:31:18,845 INFO L255 TraceCheckSpWp]: Trace formula consists of 514 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-02 12:31:18,848 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-02 12:31:18,911 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2024-11-02 12:31:18,911 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-02 12:31:18,911 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [973308322] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-02 12:31:18,911 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-02 12:31:18,912 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 9 [2024-11-02 12:31:18,912 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1922160457] [2024-11-02 12:31:18,912 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-02 12:31:18,912 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-02 12:31:18,913 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-02 12:31:18,913 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-02 12:31:18,913 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-11-02 12:31:18,914 INFO L87 Difference]: Start difference. First operand 214 states and 316 transitions. Second operand has 6 states, 5 states have (on average 10.8) internal successors, (54), 6 states have internal predecessors, (54), 3 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2024-11-02 12:31:19,080 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-02 12:31:19,080 INFO L93 Difference]: Finished difference Result 379 states and 568 transitions. [2024-11-02 12:31:19,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-02 12:31:19,081 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 10.8) internal successors, (54), 6 states have internal predecessors, (54), 3 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) Word has length 95 [2024-11-02 12:31:19,081 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-02 12:31:19,083 INFO L225 Difference]: With dead ends: 379 [2024-11-02 12:31:19,083 INFO L226 Difference]: Without dead ends: 221 [2024-11-02 12:31:19,084 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 99 GetRequests, 92 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-11-02 12:31:19,084 INFO L432 NwaCegarLoop]: 219 mSDtfsCounter, 20 mSDsluCounter, 831 mSDsCounter, 0 mSdLazyCounter, 154 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 1050 SdHoareTripleChecker+Invalid, 155 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 154 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-02 12:31:19,084 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 1050 Invalid, 155 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 154 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-02 12:31:19,085 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 221 states. [2024-11-02 12:31:19,095 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 221 to 217. [2024-11-02 12:31:19,096 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 217 states, 159 states have (on average 1.471698113207547) internal successors, (234), 166 states have internal predecessors, (234), 45 states have call successors, (45), 11 states have call predecessors, (45), 11 states have return successors, (45), 45 states have call predecessors, (45), 45 states have call successors, (45) [2024-11-02 12:31:19,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 217 states to 217 states and 324 transitions. [2024-11-02 12:31:19,098 INFO L78 Accepts]: Start accepts. Automaton has 217 states and 324 transitions. Word has length 95 [2024-11-02 12:31:19,099 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-02 12:31:19,099 INFO L471 AbstractCegarLoop]: Abstraction has 217 states and 324 transitions. [2024-11-02 12:31:19,099 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 10.8) internal successors, (54), 6 states have internal predecessors, (54), 3 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2024-11-02 12:31:19,099 INFO L276 IsEmpty]: Start isEmpty. Operand 217 states and 324 transitions. [2024-11-02 12:31:19,101 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2024-11-02 12:31:19,102 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 12:31:19,102 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-02 12:31:19,124 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_053565cc-9ee8-4d40-ab81-410949ac8397/bin/utaipan-verify-DbMuA5NWw2/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2024-11-02 12:31:19,306 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_053565cc-9ee8-4d40-ab81-410949ac8397/bin/utaipan-verify-DbMuA5NWw2/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2024-11-02 12:31:19,308 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2024-11-02 12:31:19,309 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 12:31:19,309 INFO L85 PathProgramCache]: Analyzing trace with hash 1771414553, now seen corresponding path program 1 times [2024-11-02 12:31:19,311 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-02 12:31:19,312 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1879385817] [2024-11-02 12:31:19,312 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 12:31:19,312 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-02 12:31:19,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 12:31:19,557 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 51 trivial. 0 not checked. [2024-11-02 12:31:19,558 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-02 12:31:19,558 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1879385817] [2024-11-02 12:31:19,558 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1879385817] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-02 12:31:19,558 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1056227485] [2024-11-02 12:31:19,559 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 12:31:19,559 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-02 12:31:19,559 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_053565cc-9ee8-4d40-ab81-410949ac8397/bin/utaipan-verify-DbMuA5NWw2/z3 [2024-11-02 12:31:19,561 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_053565cc-9ee8-4d40-ab81-410949ac8397/bin/utaipan-verify-DbMuA5NWw2/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-02 12:31:19,562 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_053565cc-9ee8-4d40-ab81-410949ac8397/bin/utaipan-verify-DbMuA5NWw2/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-11-02 12:31:19,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 12:31:19,749 INFO L255 TraceCheckSpWp]: Trace formula consists of 527 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-02 12:31:19,751 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-02 12:31:19,790 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2024-11-02 12:31:19,791 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-02 12:31:19,791 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1056227485] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-02 12:31:19,791 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-02 12:31:19,791 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 7 [2024-11-02 12:31:19,792 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [421635753] [2024-11-02 12:31:19,792 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-02 12:31:19,792 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-02 12:31:19,792 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-02 12:31:19,793 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-02 12:31:19,793 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-02 12:31:19,793 INFO L87 Difference]: Start difference. First operand 217 states and 324 transitions. Second operand has 4 states, 3 states have (on average 17.666666666666668) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-02 12:31:19,899 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-02 12:31:19,899 INFO L93 Difference]: Finished difference Result 226 states and 339 transitions. [2024-11-02 12:31:19,899 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-02 12:31:19,900 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 17.666666666666668) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 99 [2024-11-02 12:31:19,900 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-02 12:31:19,902 INFO L225 Difference]: With dead ends: 226 [2024-11-02 12:31:19,902 INFO L226 Difference]: Without dead ends: 225 [2024-11-02 12:31:19,902 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 98 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-02 12:31:19,903 INFO L432 NwaCegarLoop]: 223 mSDtfsCounter, 8 mSDsluCounter, 418 mSDsCounter, 0 mSdLazyCounter, 90 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 641 SdHoareTripleChecker+Invalid, 91 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 90 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-02 12:31:19,903 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 641 Invalid, 91 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 90 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-02 12:31:19,904 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 225 states. [2024-11-02 12:31:19,913 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 225 to 218. [2024-11-02 12:31:19,914 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 218 states, 160 states have (on average 1.46875) internal successors, (235), 167 states have internal predecessors, (235), 45 states have call successors, (45), 11 states have call predecessors, (45), 11 states have return successors, (45), 45 states have call predecessors, (45), 45 states have call successors, (45) [2024-11-02 12:31:19,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 218 states to 218 states and 325 transitions. [2024-11-02 12:31:19,916 INFO L78 Accepts]: Start accepts. Automaton has 218 states and 325 transitions. Word has length 99 [2024-11-02 12:31:19,917 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-02 12:31:19,917 INFO L471 AbstractCegarLoop]: Abstraction has 218 states and 325 transitions. [2024-11-02 12:31:19,917 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 17.666666666666668) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-02 12:31:19,917 INFO L276 IsEmpty]: Start isEmpty. Operand 218 states and 325 transitions. [2024-11-02 12:31:19,919 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2024-11-02 12:31:19,919 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 12:31:19,920 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-02 12:31:19,942 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_053565cc-9ee8-4d40-ab81-410949ac8397/bin/utaipan-verify-DbMuA5NWw2/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2024-11-02 12:31:20,120 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_053565cc-9ee8-4d40-ab81-410949ac8397/bin/utaipan-verify-DbMuA5NWw2/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2024-11-02 12:31:20,121 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2024-11-02 12:31:20,121 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 12:31:20,121 INFO L85 PathProgramCache]: Analyzing trace with hash -920723359, now seen corresponding path program 1 times [2024-11-02 12:31:20,123 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-02 12:31:20,124 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1746350851] [2024-11-02 12:31:20,126 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 12:31:20,126 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-02 12:31:20,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 12:31:20,268 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 51 trivial. 0 not checked. [2024-11-02 12:31:20,268 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-02 12:31:20,268 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1746350851] [2024-11-02 12:31:20,268 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1746350851] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-02 12:31:20,268 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [689391838] [2024-11-02 12:31:20,268 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 12:31:20,268 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-02 12:31:20,269 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_053565cc-9ee8-4d40-ab81-410949ac8397/bin/utaipan-verify-DbMuA5NWw2/z3 [2024-11-02 12:31:20,271 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_053565cc-9ee8-4d40-ab81-410949ac8397/bin/utaipan-verify-DbMuA5NWw2/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-02 12:31:20,272 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_053565cc-9ee8-4d40-ab81-410949ac8397/bin/utaipan-verify-DbMuA5NWw2/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2024-11-02 12:31:20,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 12:31:20,469 INFO L255 TraceCheckSpWp]: Trace formula consists of 528 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-02 12:31:20,475 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-02 12:31:20,517 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2024-11-02 12:31:20,517 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-02 12:31:20,518 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [689391838] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-02 12:31:20,518 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-02 12:31:20,518 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 7 [2024-11-02 12:31:20,518 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1320590724] [2024-11-02 12:31:20,518 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-02 12:31:20,519 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-02 12:31:20,519 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-02 12:31:20,519 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-02 12:31:20,519 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-02 12:31:20,520 INFO L87 Difference]: Start difference. First operand 218 states and 325 transitions. Second operand has 4 states, 3 states have (on average 18.0) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-02 12:31:20,614 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-02 12:31:20,615 INFO L93 Difference]: Finished difference Result 221 states and 328 transitions. [2024-11-02 12:31:20,615 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-02 12:31:20,615 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 18.0) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 100 [2024-11-02 12:31:20,616 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-02 12:31:20,617 INFO L225 Difference]: With dead ends: 221 [2024-11-02 12:31:20,617 INFO L226 Difference]: Without dead ends: 220 [2024-11-02 12:31:20,618 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 104 GetRequests, 99 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-02 12:31:20,618 INFO L432 NwaCegarLoop]: 209 mSDtfsCounter, 7 mSDsluCounter, 406 mSDsCounter, 0 mSdLazyCounter, 77 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 615 SdHoareTripleChecker+Invalid, 77 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 77 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-02 12:31:20,619 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 615 Invalid, 77 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 77 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-02 12:31:20,620 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 220 states. [2024-11-02 12:31:20,628 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 220 to 219. [2024-11-02 12:31:20,629 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 219 states, 161 states have (on average 1.4658385093167703) internal successors, (236), 168 states have internal predecessors, (236), 45 states have call successors, (45), 11 states have call predecessors, (45), 11 states have return successors, (45), 45 states have call predecessors, (45), 45 states have call successors, (45) [2024-11-02 12:31:20,635 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 219 states to 219 states and 326 transitions. [2024-11-02 12:31:20,635 INFO L78 Accepts]: Start accepts. Automaton has 219 states and 326 transitions. Word has length 100 [2024-11-02 12:31:20,636 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-02 12:31:20,636 INFO L471 AbstractCegarLoop]: Abstraction has 219 states and 326 transitions. [2024-11-02 12:31:20,636 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 18.0) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-02 12:31:20,636 INFO L276 IsEmpty]: Start isEmpty. Operand 219 states and 326 transitions. [2024-11-02 12:31:20,638 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-11-02 12:31:20,638 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 12:31:20,639 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-02 12:31:20,663 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_053565cc-9ee8-4d40-ab81-410949ac8397/bin/utaipan-verify-DbMuA5NWw2/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2024-11-02 12:31:20,843 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_053565cc-9ee8-4d40-ab81-410949ac8397/bin/utaipan-verify-DbMuA5NWw2/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2024-11-02 12:31:20,843 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2024-11-02 12:31:20,844 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 12:31:20,844 INFO L85 PathProgramCache]: Analyzing trace with hash 2074738525, now seen corresponding path program 1 times [2024-11-02 12:31:20,844 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-02 12:31:20,844 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [780094522] [2024-11-02 12:31:20,844 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 12:31:20,844 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-02 12:31:20,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 12:31:21,039 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 51 trivial. 0 not checked. [2024-11-02 12:31:21,040 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-02 12:31:21,040 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [780094522] [2024-11-02 12:31:21,040 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [780094522] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-02 12:31:21,040 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1210409877] [2024-11-02 12:31:21,041 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 12:31:21,041 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-02 12:31:21,041 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_053565cc-9ee8-4d40-ab81-410949ac8397/bin/utaipan-verify-DbMuA5NWw2/z3 [2024-11-02 12:31:21,043 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_053565cc-9ee8-4d40-ab81-410949ac8397/bin/utaipan-verify-DbMuA5NWw2/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-02 12:31:21,045 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_053565cc-9ee8-4d40-ab81-410949ac8397/bin/utaipan-verify-DbMuA5NWw2/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2024-11-02 12:31:21,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 12:31:21,255 INFO L255 TraceCheckSpWp]: Trace formula consists of 534 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-02 12:31:21,258 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-02 12:31:21,313 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2024-11-02 12:31:21,313 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-02 12:31:21,313 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1210409877] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-02 12:31:21,313 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-02 12:31:21,314 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 8 [2024-11-02 12:31:21,314 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1643998333] [2024-11-02 12:31:21,314 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-02 12:31:21,314 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-02 12:31:21,315 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-02 12:31:21,315 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-02 12:31:21,315 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-02 12:31:21,315 INFO L87 Difference]: Start difference. First operand 219 states and 326 transitions. Second operand has 5 states, 4 states have (on average 13.75) internal successors, (55), 5 states have internal predecessors, (55), 2 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-02 12:31:21,477 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-02 12:31:21,477 INFO L93 Difference]: Finished difference Result 227 states and 340 transitions. [2024-11-02 12:31:21,477 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-02 12:31:21,478 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 13.75) internal successors, (55), 5 states have internal predecessors, (55), 2 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 101 [2024-11-02 12:31:21,478 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-02 12:31:21,480 INFO L225 Difference]: With dead ends: 227 [2024-11-02 12:31:21,480 INFO L226 Difference]: Without dead ends: 226 [2024-11-02 12:31:21,480 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 105 GetRequests, 99 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-02 12:31:21,481 INFO L432 NwaCegarLoop]: 221 mSDtfsCounter, 10 mSDsluCounter, 632 mSDsCounter, 0 mSdLazyCounter, 121 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 853 SdHoareTripleChecker+Invalid, 124 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 121 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-02 12:31:21,481 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 853 Invalid, 124 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 121 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-02 12:31:21,482 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 226 states. [2024-11-02 12:31:21,490 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 226 to 220. [2024-11-02 12:31:21,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 220 states, 162 states have (on average 1.462962962962963) internal successors, (237), 169 states have internal predecessors, (237), 45 states have call successors, (45), 11 states have call predecessors, (45), 11 states have return successors, (45), 45 states have call predecessors, (45), 45 states have call successors, (45) [2024-11-02 12:31:21,492 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 220 states to 220 states and 327 transitions. [2024-11-02 12:31:21,493 INFO L78 Accepts]: Start accepts. Automaton has 220 states and 327 transitions. Word has length 101 [2024-11-02 12:31:21,493 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-02 12:31:21,494 INFO L471 AbstractCegarLoop]: Abstraction has 220 states and 327 transitions. [2024-11-02 12:31:21,494 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 13.75) internal successors, (55), 5 states have internal predecessors, (55), 2 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-02 12:31:21,494 INFO L276 IsEmpty]: Start isEmpty. Operand 220 states and 327 transitions. [2024-11-02 12:31:21,496 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-11-02 12:31:21,496 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 12:31:21,496 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-02 12:31:21,519 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_053565cc-9ee8-4d40-ab81-410949ac8397/bin/utaipan-verify-DbMuA5NWw2/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2024-11-02 12:31:21,697 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_053565cc-9ee8-4d40-ab81-410949ac8397/bin/utaipan-verify-DbMuA5NWw2/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2024-11-02 12:31:21,697 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2024-11-02 12:31:21,698 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 12:31:21,698 INFO L85 PathProgramCache]: Analyzing trace with hash 161248149, now seen corresponding path program 1 times [2024-11-02 12:31:21,698 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-02 12:31:21,699 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1336117931] [2024-11-02 12:31:21,699 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 12:31:21,699 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-02 12:31:21,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 12:31:21,836 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 51 trivial. 0 not checked. [2024-11-02 12:31:21,836 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-02 12:31:21,836 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1336117931] [2024-11-02 12:31:21,836 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1336117931] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-02 12:31:21,836 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [894877859] [2024-11-02 12:31:21,837 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 12:31:21,837 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-02 12:31:21,837 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_053565cc-9ee8-4d40-ab81-410949ac8397/bin/utaipan-verify-DbMuA5NWw2/z3 [2024-11-02 12:31:21,839 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_053565cc-9ee8-4d40-ab81-410949ac8397/bin/utaipan-verify-DbMuA5NWw2/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-02 12:31:21,841 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_053565cc-9ee8-4d40-ab81-410949ac8397/bin/utaipan-verify-DbMuA5NWw2/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2024-11-02 12:31:22,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 12:31:22,050 INFO L255 TraceCheckSpWp]: Trace formula consists of 534 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-02 12:31:22,053 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-02 12:31:22,126 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2024-11-02 12:31:22,126 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-02 12:31:22,126 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [894877859] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-02 12:31:22,127 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-02 12:31:22,127 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 9 [2024-11-02 12:31:22,127 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [317387243] [2024-11-02 12:31:22,127 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-02 12:31:22,128 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-02 12:31:22,128 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-02 12:31:22,128 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-02 12:31:22,129 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-11-02 12:31:22,130 INFO L87 Difference]: Start difference. First operand 220 states and 327 transitions. Second operand has 6 states, 5 states have (on average 11.0) internal successors, (55), 6 states have internal predecessors, (55), 3 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2024-11-02 12:31:22,312 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-02 12:31:22,313 INFO L93 Difference]: Finished difference Result 234 states and 349 transitions. [2024-11-02 12:31:22,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-02 12:31:22,313 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 11.0) internal successors, (55), 6 states have internal predecessors, (55), 3 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) Word has length 101 [2024-11-02 12:31:22,315 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-02 12:31:22,317 INFO L225 Difference]: With dead ends: 234 [2024-11-02 12:31:22,319 INFO L226 Difference]: Without dead ends: 233 [2024-11-02 12:31:22,319 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 105 GetRequests, 98 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-11-02 12:31:22,320 INFO L432 NwaCegarLoop]: 222 mSDtfsCounter, 17 mSDsluCounter, 848 mSDsCounter, 0 mSdLazyCounter, 164 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 1070 SdHoareTripleChecker+Invalid, 165 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 164 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-02 12:31:22,320 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 1070 Invalid, 165 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 164 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-02 12:31:22,321 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 233 states. [2024-11-02 12:31:22,331 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 233 to 225. [2024-11-02 12:31:22,332 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 225 states, 166 states have (on average 1.4578313253012047) internal successors, (242), 173 states have internal predecessors, (242), 46 states have call successors, (46), 11 states have call predecessors, (46), 11 states have return successors, (46), 46 states have call predecessors, (46), 46 states have call successors, (46) [2024-11-02 12:31:22,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 225 states to 225 states and 334 transitions. [2024-11-02 12:31:22,334 INFO L78 Accepts]: Start accepts. Automaton has 225 states and 334 transitions. Word has length 101 [2024-11-02 12:31:22,334 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-02 12:31:22,335 INFO L471 AbstractCegarLoop]: Abstraction has 225 states and 334 transitions. [2024-11-02 12:31:22,335 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 11.0) internal successors, (55), 6 states have internal predecessors, (55), 3 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2024-11-02 12:31:22,335 INFO L276 IsEmpty]: Start isEmpty. Operand 225 states and 334 transitions. [2024-11-02 12:31:22,337 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2024-11-02 12:31:22,337 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 12:31:22,337 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-02 12:31:22,359 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_053565cc-9ee8-4d40-ab81-410949ac8397/bin/utaipan-verify-DbMuA5NWw2/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Ended with exit code 0 [2024-11-02 12:31:22,538 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_053565cc-9ee8-4d40-ab81-410949ac8397/bin/utaipan-verify-DbMuA5NWw2/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2024-11-02 12:31:22,538 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2024-11-02 12:31:22,538 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 12:31:22,539 INFO L85 PathProgramCache]: Analyzing trace with hash -107614819, now seen corresponding path program 1 times [2024-11-02 12:31:22,539 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-02 12:31:22,539 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2145261198] [2024-11-02 12:31:22,539 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 12:31:22,539 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-02 12:31:22,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 12:31:22,699 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 51 trivial. 0 not checked. [2024-11-02 12:31:22,699 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-02 12:31:22,700 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2145261198] [2024-11-02 12:31:22,700 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2145261198] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-02 12:31:22,700 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [714376182] [2024-11-02 12:31:22,700 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 12:31:22,700 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-02 12:31:22,701 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_053565cc-9ee8-4d40-ab81-410949ac8397/bin/utaipan-verify-DbMuA5NWw2/z3 [2024-11-02 12:31:22,703 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_053565cc-9ee8-4d40-ab81-410949ac8397/bin/utaipan-verify-DbMuA5NWw2/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-02 12:31:22,704 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_053565cc-9ee8-4d40-ab81-410949ac8397/bin/utaipan-verify-DbMuA5NWw2/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2024-11-02 12:31:22,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 12:31:22,915 INFO L255 TraceCheckSpWp]: Trace formula consists of 535 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-02 12:31:22,918 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-02 12:31:22,991 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2024-11-02 12:31:22,991 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-02 12:31:22,992 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [714376182] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-02 12:31:22,992 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-02 12:31:22,992 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 9 [2024-11-02 12:31:22,992 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [349078178] [2024-11-02 12:31:22,992 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-02 12:31:22,993 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-02 12:31:22,993 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-02 12:31:22,994 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-02 12:31:22,994 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-11-02 12:31:22,995 INFO L87 Difference]: Start difference. First operand 225 states and 334 transitions. Second operand has 6 states, 5 states have (on average 11.2) internal successors, (56), 6 states have internal predecessors, (56), 3 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2024-11-02 12:31:23,121 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-02 12:31:23,121 INFO L93 Difference]: Finished difference Result 230 states and 340 transitions. [2024-11-02 12:31:23,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-02 12:31:23,122 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 11.2) internal successors, (56), 6 states have internal predecessors, (56), 3 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) Word has length 102 [2024-11-02 12:31:23,122 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-02 12:31:23,124 INFO L225 Difference]: With dead ends: 230 [2024-11-02 12:31:23,124 INFO L226 Difference]: Without dead ends: 229 [2024-11-02 12:31:23,124 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 106 GetRequests, 99 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-11-02 12:31:23,125 INFO L432 NwaCegarLoop]: 221 mSDtfsCounter, 26 mSDsluCounter, 642 mSDsCounter, 0 mSdLazyCounter, 117 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 863 SdHoareTripleChecker+Invalid, 117 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 117 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-02 12:31:23,125 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [28 Valid, 863 Invalid, 117 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 117 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-02 12:31:23,126 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 229 states. [2024-11-02 12:31:23,134 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 229 to 225. [2024-11-02 12:31:23,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 225 states, 166 states have (on average 1.4578313253012047) internal successors, (242), 173 states have internal predecessors, (242), 46 states have call successors, (46), 11 states have call predecessors, (46), 11 states have return successors, (46), 46 states have call predecessors, (46), 46 states have call successors, (46) [2024-11-02 12:31:23,136 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 225 states to 225 states and 334 transitions. [2024-11-02 12:31:23,137 INFO L78 Accepts]: Start accepts. Automaton has 225 states and 334 transitions. Word has length 102 [2024-11-02 12:31:23,137 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-02 12:31:23,137 INFO L471 AbstractCegarLoop]: Abstraction has 225 states and 334 transitions. [2024-11-02 12:31:23,137 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 11.2) internal successors, (56), 6 states have internal predecessors, (56), 3 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2024-11-02 12:31:23,137 INFO L276 IsEmpty]: Start isEmpty. Operand 225 states and 334 transitions. [2024-11-02 12:31:23,139 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2024-11-02 12:31:23,139 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 12:31:23,139 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-02 12:31:23,162 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_053565cc-9ee8-4d40-ab81-410949ac8397/bin/utaipan-verify-DbMuA5NWw2/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Ended with exit code 0 [2024-11-02 12:31:23,340 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_053565cc-9ee8-4d40-ab81-410949ac8397/bin/utaipan-verify-DbMuA5NWw2/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-02 12:31:23,340 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2024-11-02 12:31:23,341 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 12:31:23,341 INFO L85 PathProgramCache]: Analyzing trace with hash 703725669, now seen corresponding path program 1 times [2024-11-02 12:31:23,341 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-02 12:31:23,341 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1732260138] [2024-11-02 12:31:23,341 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 12:31:23,341 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-02 12:31:23,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 12:31:23,479 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 51 trivial. 0 not checked. [2024-11-02 12:31:23,479 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-02 12:31:23,479 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1732260138] [2024-11-02 12:31:23,479 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1732260138] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-02 12:31:23,480 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [31588833] [2024-11-02 12:31:23,480 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 12:31:23,480 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-02 12:31:23,480 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_053565cc-9ee8-4d40-ab81-410949ac8397/bin/utaipan-verify-DbMuA5NWw2/z3 [2024-11-02 12:31:23,482 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_053565cc-9ee8-4d40-ab81-410949ac8397/bin/utaipan-verify-DbMuA5NWw2/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-02 12:31:23,483 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_053565cc-9ee8-4d40-ab81-410949ac8397/bin/utaipan-verify-DbMuA5NWw2/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2024-11-02 12:31:23,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 12:31:23,693 INFO L255 TraceCheckSpWp]: Trace formula consists of 535 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-02 12:31:23,696 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-02 12:31:23,758 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2024-11-02 12:31:23,758 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-02 12:31:23,759 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [31588833] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-02 12:31:23,759 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-02 12:31:23,759 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 9 [2024-11-02 12:31:23,759 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1352890678] [2024-11-02 12:31:23,759 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-02 12:31:23,760 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-02 12:31:23,760 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-02 12:31:23,760 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-02 12:31:23,760 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-11-02 12:31:23,761 INFO L87 Difference]: Start difference. First operand 225 states and 334 transitions. Second operand has 6 states, 5 states have (on average 11.2) internal successors, (56), 6 states have internal predecessors, (56), 3 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2024-11-02 12:31:23,883 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-02 12:31:23,883 INFO L93 Difference]: Finished difference Result 403 states and 604 transitions. [2024-11-02 12:31:23,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-02 12:31:23,884 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 11.2) internal successors, (56), 6 states have internal predecessors, (56), 3 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) Word has length 102 [2024-11-02 12:31:23,884 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-02 12:31:23,886 INFO L225 Difference]: With dead ends: 403 [2024-11-02 12:31:23,886 INFO L226 Difference]: Without dead ends: 234 [2024-11-02 12:31:23,887 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 106 GetRequests, 99 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-11-02 12:31:23,887 INFO L432 NwaCegarLoop]: 207 mSDtfsCounter, 24 mSDsluCounter, 617 mSDsCounter, 0 mSdLazyCounter, 114 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 824 SdHoareTripleChecker+Invalid, 115 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 114 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-02 12:31:23,888 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 824 Invalid, 115 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 114 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-02 12:31:23,889 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 234 states. [2024-11-02 12:31:23,897 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 234 to 221. [2024-11-02 12:31:23,897 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 221 states, 163 states have (on average 1.460122699386503) internal successors, (238), 170 states have internal predecessors, (238), 45 states have call successors, (45), 11 states have call predecessors, (45), 11 states have return successors, (45), 45 states have call predecessors, (45), 45 states have call successors, (45) [2024-11-02 12:31:23,899 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 221 states to 221 states and 328 transitions. [2024-11-02 12:31:23,900 INFO L78 Accepts]: Start accepts. Automaton has 221 states and 328 transitions. Word has length 102 [2024-11-02 12:31:23,900 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-02 12:31:23,900 INFO L471 AbstractCegarLoop]: Abstraction has 221 states and 328 transitions. [2024-11-02 12:31:23,900 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 11.2) internal successors, (56), 6 states have internal predecessors, (56), 3 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2024-11-02 12:31:23,901 INFO L276 IsEmpty]: Start isEmpty. Operand 221 states and 328 transitions. [2024-11-02 12:31:23,902 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2024-11-02 12:31:23,902 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 12:31:23,903 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-02 12:31:23,924 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_053565cc-9ee8-4d40-ab81-410949ac8397/bin/utaipan-verify-DbMuA5NWw2/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Ended with exit code 0 [2024-11-02 12:31:24,103 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_053565cc-9ee8-4d40-ab81-410949ac8397/bin/utaipan-verify-DbMuA5NWw2/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-02 12:31:24,104 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2024-11-02 12:31:24,104 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 12:31:24,104 INFO L85 PathProgramCache]: Analyzing trace with hash -402190887, now seen corresponding path program 1 times [2024-11-02 12:31:24,105 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-02 12:31:24,105 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1333998772] [2024-11-02 12:31:24,105 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 12:31:24,105 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-02 12:31:24,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 12:31:24,247 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 51 trivial. 0 not checked. [2024-11-02 12:31:24,248 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-02 12:31:24,248 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1333998772] [2024-11-02 12:31:24,248 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1333998772] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-02 12:31:24,248 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1880455044] [2024-11-02 12:31:24,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 12:31:24,249 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-02 12:31:24,249 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_053565cc-9ee8-4d40-ab81-410949ac8397/bin/utaipan-verify-DbMuA5NWw2/z3 [2024-11-02 12:31:24,251 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_053565cc-9ee8-4d40-ab81-410949ac8397/bin/utaipan-verify-DbMuA5NWw2/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-02 12:31:24,253 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_053565cc-9ee8-4d40-ab81-410949ac8397/bin/utaipan-verify-DbMuA5NWw2/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2024-11-02 12:31:24,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 12:31:24,466 INFO L255 TraceCheckSpWp]: Trace formula consists of 541 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-02 12:31:24,470 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-02 12:31:24,558 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2024-11-02 12:31:24,558 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-02 12:31:24,558 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1880455044] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-02 12:31:24,559 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-02 12:31:24,559 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [5] total 10 [2024-11-02 12:31:24,559 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1913747605] [2024-11-02 12:31:24,559 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-02 12:31:24,560 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-02 12:31:24,560 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-02 12:31:24,561 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-02 12:31:24,561 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2024-11-02 12:31:24,561 INFO L87 Difference]: Start difference. First operand 221 states and 328 transitions. Second operand has 7 states, 6 states have (on average 9.5) internal successors, (57), 7 states have internal predecessors, (57), 3 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2024-11-02 12:31:24,756 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-02 12:31:24,756 INFO L93 Difference]: Finished difference Result 236 states and 354 transitions. [2024-11-02 12:31:24,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-02 12:31:24,757 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 9.5) internal successors, (57), 7 states have internal predecessors, (57), 3 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) Word has length 103 [2024-11-02 12:31:24,759 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-02 12:31:24,761 INFO L225 Difference]: With dead ends: 236 [2024-11-02 12:31:24,762 INFO L226 Difference]: Without dead ends: 235 [2024-11-02 12:31:24,762 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 107 GetRequests, 99 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2024-11-02 12:31:24,763 INFO L432 NwaCegarLoop]: 201 mSDtfsCounter, 21 mSDsluCounter, 984 mSDsCounter, 0 mSdLazyCounter, 180 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 1185 SdHoareTripleChecker+Invalid, 183 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 180 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-02 12:31:24,764 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 1185 Invalid, 183 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 180 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-02 12:31:24,765 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 235 states. [2024-11-02 12:31:24,777 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 235 to 220. [2024-11-02 12:31:24,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 220 states, 163 states have (on average 1.4539877300613497) internal successors, (237), 169 states have internal predecessors, (237), 45 states have call successors, (45), 11 states have call predecessors, (45), 11 states have return successors, (45), 45 states have call predecessors, (45), 45 states have call successors, (45) [2024-11-02 12:31:24,780 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 220 states to 220 states and 327 transitions. [2024-11-02 12:31:24,781 INFO L78 Accepts]: Start accepts. Automaton has 220 states and 327 transitions. Word has length 103 [2024-11-02 12:31:24,781 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-02 12:31:24,781 INFO L471 AbstractCegarLoop]: Abstraction has 220 states and 327 transitions. [2024-11-02 12:31:24,782 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 9.5) internal successors, (57), 7 states have internal predecessors, (57), 3 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2024-11-02 12:31:24,782 INFO L276 IsEmpty]: Start isEmpty. Operand 220 states and 327 transitions. [2024-11-02 12:31:24,784 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2024-11-02 12:31:24,785 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 12:31:24,785 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-02 12:31:24,807 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_053565cc-9ee8-4d40-ab81-410949ac8397/bin/utaipan-verify-DbMuA5NWw2/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Forceful destruction successful, exit code 0 [2024-11-02 12:31:24,990 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_053565cc-9ee8-4d40-ab81-410949ac8397/bin/utaipan-verify-DbMuA5NWw2/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-02 12:31:24,991 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2024-11-02 12:31:24,991 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 12:31:24,993 INFO L85 PathProgramCache]: Analyzing trace with hash 416984737, now seen corresponding path program 1 times [2024-11-02 12:31:24,993 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-02 12:31:24,994 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1877107565] [2024-11-02 12:31:24,994 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 12:31:24,994 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-02 12:31:25,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 12:31:25,157 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 51 trivial. 0 not checked. [2024-11-02 12:31:25,157 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-02 12:31:25,157 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1877107565] [2024-11-02 12:31:25,158 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1877107565] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-02 12:31:25,158 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2071625858] [2024-11-02 12:31:25,158 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 12:31:25,158 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-02 12:31:25,158 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_053565cc-9ee8-4d40-ab81-410949ac8397/bin/utaipan-verify-DbMuA5NWw2/z3 [2024-11-02 12:31:25,160 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_053565cc-9ee8-4d40-ab81-410949ac8397/bin/utaipan-verify-DbMuA5NWw2/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-02 12:31:25,162 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_053565cc-9ee8-4d40-ab81-410949ac8397/bin/utaipan-verify-DbMuA5NWw2/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2024-11-02 12:31:25,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 12:31:25,371 INFO L255 TraceCheckSpWp]: Trace formula consists of 542 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-02 12:31:25,376 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-02 12:31:25,469 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2024-11-02 12:31:25,469 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-02 12:31:25,469 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2071625858] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-02 12:31:25,469 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-02 12:31:25,470 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [5] total 11 [2024-11-02 12:31:25,470 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [670259322] [2024-11-02 12:31:25,470 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-02 12:31:25,470 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-02 12:31:25,471 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-02 12:31:25,471 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-02 12:31:25,471 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2024-11-02 12:31:25,472 INFO L87 Difference]: Start difference. First operand 220 states and 327 transitions. Second operand has 8 states, 7 states have (on average 8.285714285714286) internal successors, (58), 8 states have internal predecessors, (58), 4 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 4 states have call predecessors, (13), 4 states have call successors, (13) [2024-11-02 12:31:25,653 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-02 12:31:25,654 INFO L93 Difference]: Finished difference Result 234 states and 352 transitions. [2024-11-02 12:31:25,654 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-02 12:31:25,654 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 8.285714285714286) internal successors, (58), 8 states have internal predecessors, (58), 4 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 4 states have call predecessors, (13), 4 states have call successors, (13) Word has length 104 [2024-11-02 12:31:25,655 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-02 12:31:25,655 INFO L225 Difference]: With dead ends: 234 [2024-11-02 12:31:25,655 INFO L226 Difference]: Without dead ends: 0 [2024-11-02 12:31:25,656 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 108 GetRequests, 99 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2024-11-02 12:31:25,657 INFO L432 NwaCegarLoop]: 214 mSDtfsCounter, 36 mSDsluCounter, 1033 mSDsCounter, 0 mSdLazyCounter, 202 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 1247 SdHoareTripleChecker+Invalid, 203 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 202 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-02 12:31:25,657 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [39 Valid, 1247 Invalid, 203 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 202 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-02 12:31:25,657 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-02 12:31:25,657 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-02 12:31:25,658 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 12:31:25,658 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-02 12:31:25,661 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 104 [2024-11-02 12:31:25,661 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-02 12:31:25,661 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-02 12:31:25,661 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 8.285714285714286) internal successors, (58), 8 states have internal predecessors, (58), 4 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 4 states have call predecessors, (13), 4 states have call successors, (13) [2024-11-02 12:31:25,662 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-02 12:31:25,662 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-02 12:31:25,664 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 8 remaining) [2024-11-02 12:31:25,665 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 8 remaining) [2024-11-02 12:31:25,665 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 8 remaining) [2024-11-02 12:31:25,665 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 8 remaining) [2024-11-02 12:31:25,666 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 8 remaining) [2024-11-02 12:31:25,666 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 8 remaining) [2024-11-02 12:31:25,666 INFO L782 garLoopResultBuilder]: Registering result SAFE for location add_history_typeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 8 remaining) [2024-11-02 12:31:25,666 INFO L782 garLoopResultBuilder]: Registering result SAFE for location add_history_typeErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 8 remaining) [2024-11-02 12:31:25,688 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_053565cc-9ee8-4d40-ab81-410949ac8397/bin/utaipan-verify-DbMuA5NWw2/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Ended with exit code 0 [2024-11-02 12:31:25,866 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_053565cc-9ee8-4d40-ab81-410949ac8397/bin/utaipan-verify-DbMuA5NWw2/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2024-11-02 12:31:25,869 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-02 12:31:25,872 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-02 12:31:26,195 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-02 12:31:26,221 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.11 12:31:26 BoogieIcfgContainer [2024-11-02 12:31:26,221 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-02 12:31:26,221 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-02 12:31:26,222 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-02 12:31:26,222 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-02 12:31:26,222 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 12:31:08" (3/4) ... [2024-11-02 12:31:26,225 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-02 12:31:26,228 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure read_history_int8 [2024-11-02 12:31:26,228 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure read_history_bool [2024-11-02 12:31:26,228 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure assert [2024-11-02 12:31:26,229 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure add_history_type [2024-11-02 12:31:26,229 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure assume_abort_if_not [2024-11-02 12:31:26,229 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure write_history_bool [2024-11-02 12:31:26,240 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 47 nodes and edges [2024-11-02 12:31:26,241 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2024-11-02 12:31:26,242 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-11-02 12:31:26,242 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-02 12:31:26,271 WARN L216 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((0 < (var + 2147483649)) && ((\old(history_id) != 0) || (history_id == 0))) [2024-11-02 12:31:26,329 WARN L140 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((0 < (var + 2147483649)) && ((\old(history_id) != 0) || (history_id == 0))) [2024-11-02 12:31:26,390 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_053565cc-9ee8-4d40-ab81-410949ac8397/bin/utaipan-verify-DbMuA5NWw2/witness.graphml [2024-11-02 12:31:26,393 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_053565cc-9ee8-4d40-ab81-410949ac8397/bin/utaipan-verify-DbMuA5NWw2/witness.yml [2024-11-02 12:31:26,393 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-02 12:31:26,393 INFO L158 Benchmark]: Toolchain (without parser) took 19598.14ms. Allocated memory was 188.7MB in the beginning and 375.4MB in the end (delta: 186.6MB). Free memory was 151.0MB in the beginning and 166.1MB in the end (delta: -15.1MB). Peak memory consumption was 173.4MB. Max. memory is 16.1GB. [2024-11-02 12:31:26,394 INFO L158 Benchmark]: CDTParser took 0.34ms. Allocated memory is still 188.7MB. Free memory is still 130.7MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-02 12:31:26,394 INFO L158 Benchmark]: CACSL2BoogieTranslator took 517.88ms. Allocated memory is still 188.7MB. Free memory was 151.0MB in the beginning and 132.3MB in the end (delta: 18.7MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2024-11-02 12:31:26,394 INFO L158 Benchmark]: Boogie Procedure Inliner took 74.92ms. Allocated memory is still 188.7MB. Free memory was 132.3MB in the beginning and 128.9MB in the end (delta: 3.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-02 12:31:26,394 INFO L158 Benchmark]: Boogie Preprocessor took 55.07ms. Allocated memory is still 188.7MB. Free memory was 128.9MB in the beginning and 126.1MB in the end (delta: 2.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-02 12:31:26,395 INFO L158 Benchmark]: RCFGBuilder took 1387.23ms. Allocated memory was 188.7MB in the beginning and 260.0MB in the end (delta: 71.3MB). Free memory was 126.1MB in the beginning and 216.1MB in the end (delta: -90.0MB). Peak memory consumption was 62.7MB. Max. memory is 16.1GB. [2024-11-02 12:31:26,395 INFO L158 Benchmark]: TraceAbstraction took 17382.15ms. Allocated memory was 260.0MB in the beginning and 375.4MB in the end (delta: 115.3MB). Free memory was 215.0MB in the beginning and 178.7MB in the end (delta: 36.3MB). Peak memory consumption was 152.7MB. Max. memory is 16.1GB. [2024-11-02 12:31:26,395 INFO L158 Benchmark]: Witness Printer took 171.46ms. Allocated memory is still 375.4MB. Free memory was 178.7MB in the beginning and 166.1MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-11-02 12:31:26,397 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34ms. Allocated memory is still 188.7MB. Free memory is still 130.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 517.88ms. Allocated memory is still 188.7MB. Free memory was 151.0MB in the beginning and 132.3MB in the end (delta: 18.7MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 74.92ms. Allocated memory is still 188.7MB. Free memory was 132.3MB in the beginning and 128.9MB in the end (delta: 3.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 55.07ms. Allocated memory is still 188.7MB. Free memory was 128.9MB in the beginning and 126.1MB in the end (delta: 2.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 1387.23ms. Allocated memory was 188.7MB in the beginning and 260.0MB in the end (delta: 71.3MB). Free memory was 126.1MB in the beginning and 216.1MB in the end (delta: -90.0MB). Peak memory consumption was 62.7MB. Max. memory is 16.1GB. * TraceAbstraction took 17382.15ms. Allocated memory was 260.0MB in the beginning and 375.4MB in the end (delta: 115.3MB). Free memory was 215.0MB in the beginning and 178.7MB in the end (delta: 36.3MB). Peak memory consumption was 152.7MB. Max. memory is 16.1GB. * Witness Printer took 171.46ms. Allocated memory is still 375.4MB. Free memory was 178.7MB in the beginning and 166.1MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. 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: 273]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 273]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 277]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 277]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 281]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 281]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 99]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 99]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 159 locations, 8 error locations. Started 1 CEGAR loops. OverallTime: 16.9s, OverallIterations: 22, TraceHistogramMax: 4, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 3.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 387 SdHoareTripleChecker+Valid, 2.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 351 mSDsluCounter, 16944 SdHoareTripleChecker+Invalid, 2.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 12218 mSDsCounter, 47 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2228 IncrementalHoareTripleChecker+Invalid, 2275 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 47 mSolverCounterUnsat, 4726 mSDtfsCounter, 2228 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1804 GetRequests, 1679 SyntacticMatches, 0 SemanticMatches, 125 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=225occurred in iteration=18, InterpolantAutomatonStates: 110, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.4s AutomataMinimizationTime, 22 MinimizatonAttempts, 127 StatesRemovedByMinimization, 15 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.7s SsaConstructionTime, 1.9s SatisfiabilityAnalysisTime, 4.5s InterpolantComputationTime, 3469 NumberOfCodeBlocks, 3469 NumberOfCodeBlocksAsserted, 41 NumberOfCheckSat, 3428 ConstructedInterpolants, 0 QuantifiedInterpolants, 3986 SizeOfPredicates, 0 NumberOfNonLiveVariables, 9369 ConjunctsInSsa, 75 ConjunctsInUnsatCore, 41 InterpolantComputations, 22 PerfectInterpolantSequences, 1665/1690 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 8 specifications checked. All of them hold - InvariantResult [Line: 74]: Loop Invariant Derived loop invariant: ((0 < (var + 2147483649)) && ((\old(history_id) != 0) || (history_id == 0))) - InvariantResult [Line: 515]: Loop Invariant Derived loop invariant: 1 - ProcedureContractResult [Line: 104]: Procedure Contract for read_history_int8 Derived contract for procedure read_history_int8. Ensures: ((((((((((((((((((((((((((((nomsg == \old(nomsg)) && (g1v == \old(g1v))) && (g1v_old == \old(g1v_old))) && (g1v_new == \old(g1v_new))) && (g2v == \old(g2v))) && (g2v_old == \old(g2v_old))) && (g2v_new == \old(g2v_new))) && (g3v == \old(g3v))) && (g3v_old == \old(g3v_old))) && (g3v_new == \old(g3v_new))) && (gate1Failed == \old(gate1Failed))) && (gate2Failed == \old(gate2Failed))) && (gate3Failed == \old(gate3Failed))) && (VALUE1 == \old(VALUE1))) && (VALUE2 == \old(VALUE2))) && (VALUE3 == \old(VALUE3))) && (gate1Failed_History_0 == \old(gate1Failed_History_0))) && (gate1Failed_History_1 == \old(gate1Failed_History_1))) && (gate1Failed_History_2 == \old(gate1Failed_History_2))) && (gate2Failed_History_0 == \old(gate2Failed_History_0))) && (gate2Failed_History_1 == \old(gate2Failed_History_1))) && (gate2Failed_History_2 == \old(gate2Failed_History_2))) && (gate3Failed_History_0 == \old(gate3Failed_History_0))) && (gate3Failed_History_1 == \old(gate3Failed_History_1))) && (gate3Failed_History_2 == \old(gate3Failed_History_2))) && (votedValue_History_0 == \old(votedValue_History_0))) && (votedValue_History_1 == \old(votedValue_History_1))) && (votedValue_History_2 == \old(votedValue_History_2))) - ProcedureContractResult [Line: 124]: Procedure Contract for read_history_bool Derived contract for procedure read_history_bool. Ensures: ((((((((((((((((((((((((((((nomsg == \old(nomsg)) && (g1v == \old(g1v))) && (g1v_old == \old(g1v_old))) && (g1v_new == \old(g1v_new))) && (g2v == \old(g2v))) && (g2v_old == \old(g2v_old))) && (g2v_new == \old(g2v_new))) && (g3v == \old(g3v))) && (g3v_old == \old(g3v_old))) && (g3v_new == \old(g3v_new))) && (gate1Failed == \old(gate1Failed))) && (gate2Failed == \old(gate2Failed))) && (gate3Failed == \old(gate3Failed))) && (VALUE1 == \old(VALUE1))) && (VALUE2 == \old(VALUE2))) && (VALUE3 == \old(VALUE3))) && (gate1Failed_History_0 == \old(gate1Failed_History_0))) && (gate1Failed_History_1 == \old(gate1Failed_History_1))) && (gate1Failed_History_2 == \old(gate1Failed_History_2))) && (gate2Failed_History_0 == \old(gate2Failed_History_0))) && (gate2Failed_History_1 == \old(gate2Failed_History_1))) && (gate2Failed_History_2 == \old(gate2Failed_History_2))) && (gate3Failed_History_0 == \old(gate3Failed_History_0))) && (gate3Failed_History_1 == \old(gate3Failed_History_1))) && (gate3Failed_History_2 == \old(gate3Failed_History_2))) && (votedValue_History_0 == \old(votedValue_History_0))) && (votedValue_History_1 == \old(votedValue_History_1))) && (votedValue_History_2 == \old(votedValue_History_2))) - ProcedureContractResult [Line: 534]: Procedure Contract for assert Derived contract for procedure assert. Ensures: ((((((((((((((((((((((((((((nomsg == \old(nomsg)) && (g1v == \old(g1v))) && (g1v_old == \old(g1v_old))) && (g1v_new == \old(g1v_new))) && (g2v == \old(g2v))) && (g2v_old == \old(g2v_old))) && (g2v_new == \old(g2v_new))) && (g3v == \old(g3v))) && (g3v_old == \old(g3v_old))) && (g3v_new == \old(g3v_new))) && (gate1Failed == \old(gate1Failed))) && (gate2Failed == \old(gate2Failed))) && (gate3Failed == \old(gate3Failed))) && (VALUE1 == \old(VALUE1))) && (VALUE2 == \old(VALUE2))) && (VALUE3 == \old(VALUE3))) && (gate1Failed_History_0 == \old(gate1Failed_History_0))) && (gate1Failed_History_1 == \old(gate1Failed_History_1))) && (gate1Failed_History_2 == \old(gate1Failed_History_2))) && (gate2Failed_History_0 == \old(gate2Failed_History_0))) && (gate2Failed_History_1 == \old(gate2Failed_History_1))) && (gate2Failed_History_2 == \old(gate2Failed_History_2))) && (gate3Failed_History_0 == \old(gate3Failed_History_0))) && (gate3Failed_History_1 == \old(gate3Failed_History_1))) && (gate3Failed_History_2 == \old(gate3Failed_History_2))) && (votedValue_History_0 == \old(votedValue_History_0))) && (votedValue_History_1 == \old(votedValue_History_1))) && (votedValue_History_2 == \old(votedValue_History_2))) - ProcedureContractResult [Line: 60]: Procedure Contract for add_history_type Derived contract for procedure add_history_type. Ensures: ((((((((((((((((((((((((((((nomsg == \old(nomsg)) && (g1v == \old(g1v))) && (g1v_old == \old(g1v_old))) && (g1v_new == \old(g1v_new))) && (g2v == \old(g2v))) && (g2v_old == \old(g2v_old))) && (g2v_new == \old(g2v_new))) && (g3v == \old(g3v))) && (g3v_old == \old(g3v_old))) && (g3v_new == \old(g3v_new))) && (gate1Failed == \old(gate1Failed))) && (gate2Failed == \old(gate2Failed))) && (gate3Failed == \old(gate3Failed))) && (VALUE1 == \old(VALUE1))) && (VALUE2 == \old(VALUE2))) && (VALUE3 == \old(VALUE3))) && (gate1Failed_History_0 == \old(gate1Failed_History_0))) && (gate1Failed_History_1 == \old(gate1Failed_History_1))) && (gate1Failed_History_2 == \old(gate1Failed_History_2))) && (gate2Failed_History_0 == \old(gate2Failed_History_0))) && (gate2Failed_History_1 == \old(gate2Failed_History_1))) && (gate2Failed_History_2 == \old(gate2Failed_History_2))) && (gate3Failed_History_0 == \old(gate3Failed_History_0))) && (gate3Failed_History_1 == \old(gate3Failed_History_1))) && (gate3Failed_History_2 == \old(gate3Failed_History_2))) && (votedValue_History_0 == \old(votedValue_History_0))) && (votedValue_History_1 == \old(votedValue_History_1))) && (votedValue_History_2 == \old(votedValue_History_2))) - ProcedureContractResult [Line: 36]: Procedure Contract for assume_abort_if_not Derived contract for procedure assume_abort_if_not. Ensures: ((((((((((((((((((((((((((((nomsg == \old(nomsg)) && (g1v == \old(g1v))) && (g1v_old == \old(g1v_old))) && (g1v_new == \old(g1v_new))) && (g2v == \old(g2v))) && (g2v_old == \old(g2v_old))) && (g2v_new == \old(g2v_new))) && (g3v == \old(g3v))) && (g3v_old == \old(g3v_old))) && (g3v_new == \old(g3v_new))) && (gate1Failed == \old(gate1Failed))) && (gate2Failed == \old(gate2Failed))) && (gate3Failed == \old(gate3Failed))) && (VALUE1 == \old(VALUE1))) && (VALUE2 == \old(VALUE2))) && (VALUE3 == \old(VALUE3))) && (gate1Failed_History_0 == \old(gate1Failed_History_0))) && (gate1Failed_History_1 == \old(gate1Failed_History_1))) && (gate1Failed_History_2 == \old(gate1Failed_History_2))) && (gate2Failed_History_0 == \old(gate2Failed_History_0))) && (gate2Failed_History_1 == \old(gate2Failed_History_1))) && (gate2Failed_History_2 == \old(gate2Failed_History_2))) && (gate3Failed_History_0 == \old(gate3Failed_History_0))) && (gate3Failed_History_1 == \old(gate3Failed_History_1))) && (gate3Failed_History_2 == \old(gate3Failed_History_2))) && (votedValue_History_0 == \old(votedValue_History_0))) && (votedValue_History_1 == \old(votedValue_History_1))) && (votedValue_History_2 == \old(votedValue_History_2))) - ProcedureContractResult [Line: 179]: Procedure Contract for write_history_bool Derived contract for procedure write_history_bool. Ensures: (((((((((((((((((((nomsg == \old(nomsg)) && (g1v == \old(g1v))) && (g1v_old == \old(g1v_old))) && (g1v_new == \old(g1v_new))) && (g2v == \old(g2v))) && (g2v_old == \old(g2v_old))) && (g2v_new == \old(g2v_new))) && (g3v == \old(g3v))) && (g3v_old == \old(g3v_old))) && (g3v_new == \old(g3v_new))) && (gate1Failed == \old(gate1Failed))) && (gate2Failed == \old(gate2Failed))) && (gate3Failed == \old(gate3Failed))) && (VALUE1 == \old(VALUE1))) && (VALUE2 == \old(VALUE2))) && (VALUE3 == \old(VALUE3))) && (votedValue_History_0 == \old(votedValue_History_0))) && (votedValue_History_1 == \old(votedValue_History_1))) && (votedValue_History_2 == \old(votedValue_History_2))) RESULT: Ultimate proved your program to be correct! [2024-11-02 12:31:26,447 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_053565cc-9ee8-4d40-ab81-410949ac8397/bin/utaipan-verify-DbMuA5NWw2/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE