./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/hard2_valuebound1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eac3b1dc-db90-47c7-923f-1e12edf244a8/bin/utaipan-verify-SwPr7d2a91/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eac3b1dc-db90-47c7-923f-1e12edf244a8/bin/utaipan-verify-SwPr7d2a91/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eac3b1dc-db90-47c7-923f-1e12edf244a8/bin/utaipan-verify-SwPr7d2a91/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eac3b1dc-db90-47c7-923f-1e12edf244a8/bin/utaipan-verify-SwPr7d2a91/config/TaipanReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/hard2_valuebound1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eac3b1dc-db90-47c7-923f-1e12edf244a8/bin/utaipan-verify-SwPr7d2a91/config/svcomp-Overflow-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eac3b1dc-db90-47c7-923f-1e12edf244a8/bin/utaipan-verify-SwPr7d2a91 --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 45ff7b74faf4250f77b788e07275d725ea3dbcc73af0b2b0d64dcf5aa7f7b78a --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-25 00:07:27,465 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-25 00:07:27,582 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eac3b1dc-db90-47c7-923f-1e12edf244a8/bin/utaipan-verify-SwPr7d2a91/config/svcomp-Overflow-32bit-Taipan_Default.epf [2023-11-25 00:07:27,596 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-25 00:07:27,597 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-25 00:07:27,635 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-25 00:07:27,636 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-25 00:07:27,637 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-25 00:07:27,638 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-25 00:07:27,643 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-25 00:07:27,644 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-25 00:07:27,645 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-25 00:07:27,645 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-25 00:07:27,647 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-25 00:07:27,648 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-25 00:07:27,648 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-25 00:07:27,649 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-25 00:07:27,649 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-25 00:07:27,651 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-25 00:07:27,652 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-25 00:07:27,652 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-25 00:07:27,653 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-25 00:07:27,654 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-25 00:07:27,655 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-25 00:07:27,655 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-25 00:07:27,656 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-25 00:07:27,656 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-25 00:07:27,657 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-25 00:07:27,657 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-25 00:07:27,658 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-25 00:07:27,659 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-25 00:07:27,659 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-25 00:07:27,660 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-25 00:07:27,660 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-25 00:07:27,660 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-25 00:07:27,661 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-25 00:07:27,661 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-25 00:07:27,661 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-25 00:07:27,662 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-25 00:07:27,662 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-25 00:07:27,662 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-25 00:07:27,663 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-25 00:07:27,663 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-25 00:07:27,664 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-25 00:07:27,664 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-25 00:07:27,665 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-25 00:07:27,665 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-25 00:07:27,665 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-25 00:07:27,666 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-25 00:07:27,666 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_eac3b1dc-db90-47c7-923f-1e12edf244a8/bin/utaipan-verify-SwPr7d2a91/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eac3b1dc-db90-47c7-923f-1e12edf244a8/bin/utaipan-verify-SwPr7d2a91 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 45ff7b74faf4250f77b788e07275d725ea3dbcc73af0b2b0d64dcf5aa7f7b78a [2023-11-25 00:07:27,987 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-25 00:07:28,019 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-25 00:07:28,022 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-25 00:07:28,023 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-25 00:07:28,024 INFO L274 PluginConnector]: CDTParser initialized [2023-11-25 00:07:28,025 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eac3b1dc-db90-47c7-923f-1e12edf244a8/bin/utaipan-verify-SwPr7d2a91/../../sv-benchmarks/c/nla-digbench-scaling/hard2_valuebound1.c [2023-11-25 00:07:31,131 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-25 00:07:31,398 INFO L384 CDTParser]: Found 1 translation units. [2023-11-25 00:07:31,398 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eac3b1dc-db90-47c7-923f-1e12edf244a8/sv-benchmarks/c/nla-digbench-scaling/hard2_valuebound1.c [2023-11-25 00:07:31,408 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eac3b1dc-db90-47c7-923f-1e12edf244a8/bin/utaipan-verify-SwPr7d2a91/data/b539a6eb4/01a32f4e172c4f2aa91baea7a7f1db03/FLAGae7b38001 [2023-11-25 00:07:31,424 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eac3b1dc-db90-47c7-923f-1e12edf244a8/bin/utaipan-verify-SwPr7d2a91/data/b539a6eb4/01a32f4e172c4f2aa91baea7a7f1db03 [2023-11-25 00:07:31,428 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-25 00:07:31,429 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-25 00:07:31,431 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-25 00:07:31,432 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-25 00:07:31,438 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-25 00:07:31,439 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 12:07:31" (1/1) ... [2023-11-25 00:07:31,441 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@32f2fed6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:07:31, skipping insertion in model container [2023-11-25 00:07:31,441 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 12:07:31" (1/1) ... [2023-11-25 00:07:31,481 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-25 00:07:31,720 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-25 00:07:31,737 INFO L202 MainTranslator]: Completed pre-run [2023-11-25 00:07:31,770 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-25 00:07:31,786 INFO L206 MainTranslator]: Completed translation [2023-11-25 00:07:31,786 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:07:31 WrapperNode [2023-11-25 00:07:31,786 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-25 00:07:31,788 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-25 00:07:31,788 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-25 00:07:31,788 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-25 00:07:31,798 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:07:31" (1/1) ... [2023-11-25 00:07:31,806 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:07:31" (1/1) ... [2023-11-25 00:07:31,841 INFO L138 Inliner]: procedures = 14, calls = 24, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 94 [2023-11-25 00:07:31,842 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-25 00:07:31,843 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-25 00:07:31,843 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-25 00:07:31,843 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-25 00:07:31,854 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:07:31" (1/1) ... [2023-11-25 00:07:31,854 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:07:31" (1/1) ... [2023-11-25 00:07:31,857 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:07:31" (1/1) ... [2023-11-25 00:07:31,857 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:07:31" (1/1) ... [2023-11-25 00:07:31,862 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:07:31" (1/1) ... [2023-11-25 00:07:31,866 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:07:31" (1/1) ... [2023-11-25 00:07:31,867 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:07:31" (1/1) ... [2023-11-25 00:07:31,868 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:07:31" (1/1) ... [2023-11-25 00:07:31,871 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-25 00:07:31,872 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-25 00:07:31,872 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-25 00:07:31,872 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-25 00:07:31,873 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:07:31" (1/1) ... [2023-11-25 00:07:31,880 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-25 00:07:31,904 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eac3b1dc-db90-47c7-923f-1e12edf244a8/bin/utaipan-verify-SwPr7d2a91/z3 [2023-11-25 00:07:31,919 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eac3b1dc-db90-47c7-923f-1e12edf244a8/bin/utaipan-verify-SwPr7d2a91/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-25 00:07:31,921 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eac3b1dc-db90-47c7-923f-1e12edf244a8/bin/utaipan-verify-SwPr7d2a91/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-25 00:07:31,950 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-25 00:07:31,950 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-25 00:07:31,951 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-25 00:07:31,951 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-25 00:07:31,951 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-11-25 00:07:31,951 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-11-25 00:07:32,023 INFO L241 CfgBuilder]: Building ICFG [2023-11-25 00:07:32,026 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-25 00:07:32,467 INFO L282 CfgBuilder]: Performing block encoding [2023-11-25 00:07:32,521 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-25 00:07:32,522 INFO L309 CfgBuilder]: Removed 2 assume(true) statements. [2023-11-25 00:07:32,524 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 12:07:32 BoogieIcfgContainer [2023-11-25 00:07:32,524 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-25 00:07:32,560 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-25 00:07:32,561 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-25 00:07:32,564 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-25 00:07:32,565 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 12:07:31" (1/3) ... [2023-11-25 00:07:32,566 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2cfd8b9a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 12:07:32, skipping insertion in model container [2023-11-25 00:07:32,566 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:07:31" (2/3) ... [2023-11-25 00:07:32,579 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2cfd8b9a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 12:07:32, skipping insertion in model container [2023-11-25 00:07:32,579 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 12:07:32" (3/3) ... [2023-11-25 00:07:32,581 INFO L112 eAbstractionObserver]: Analyzing ICFG hard2_valuebound1.c [2023-11-25 00:07:32,617 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-25 00:07:32,618 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 24 error locations. [2023-11-25 00:07:32,684 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-25 00:07:32,698 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@5bd7659b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-25 00:07:32,700 INFO L358 AbstractCegarLoop]: Starting to check reachability of 24 error locations. [2023-11-25 00:07:32,705 INFO L276 IsEmpty]: Start isEmpty. Operand has 65 states, 32 states have (on average 1.90625) internal successors, (61), 56 states have internal predecessors, (61), 7 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2023-11-25 00:07:32,712 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2023-11-25 00:07:32,712 INFO L187 NwaCegarLoop]: Found error trace [2023-11-25 00:07:32,713 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2023-11-25 00:07:32,713 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2023-11-25 00:07:32,718 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-25 00:07:32,718 INFO L85 PathProgramCache]: Analyzing trace with hash 5411999, now seen corresponding path program 1 times [2023-11-25 00:07:32,726 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-25 00:07:32,726 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1067062370] [2023-11-25 00:07:32,727 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-25 00:07:32,727 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-25 00:07:32,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-25 00:07:32,853 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-25 00:07:32,854 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1067062370] [2023-11-25 00:07:32,854 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2023-11-25 00:07:32,855 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1636498062] [2023-11-25 00:07:32,855 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-25 00:07:32,855 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-25 00:07:32,855 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eac3b1dc-db90-47c7-923f-1e12edf244a8/bin/utaipan-verify-SwPr7d2a91/z3 [2023-11-25 00:07:32,859 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eac3b1dc-db90-47c7-923f-1e12edf244a8/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-25 00:07:32,885 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eac3b1dc-db90-47c7-923f-1e12edf244a8/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-25 00:07:32,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-25 00:07:32,955 INFO L262 TraceCheckSpWp]: Trace formula consists of 53 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-25 00:07:32,959 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-25 00:07:32,978 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-25 00:07:32,978 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-25 00:07:32,979 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1636498062] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-25 00:07:32,979 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-25 00:07:32,979 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-25 00:07:32,984 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1312991117] [2023-11-25 00:07:32,985 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-25 00:07:32,989 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-25 00:07:32,989 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-25 00:07:33,023 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-25 00:07:33,025 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-25 00:07:33,028 INFO L87 Difference]: Start difference. First operand has 65 states, 32 states have (on average 1.90625) internal successors, (61), 56 states have internal predecessors, (61), 7 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) Second operand has 2 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-25 00:07:33,088 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-25 00:07:33,089 INFO L93 Difference]: Finished difference Result 112 states and 127 transitions. [2023-11-25 00:07:33,090 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-25 00:07:33,092 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4 [2023-11-25 00:07:33,092 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-25 00:07:33,101 INFO L225 Difference]: With dead ends: 112 [2023-11-25 00:07:33,102 INFO L226 Difference]: Without dead ends: 61 [2023-11-25 00:07:33,105 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-25 00:07:33,111 INFO L413 NwaCegarLoop]: 70 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 70 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-25 00:07:33,113 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 70 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-25 00:07:33,131 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2023-11-25 00:07:33,151 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 61. [2023-11-25 00:07:33,153 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61 states, 31 states have (on average 1.8387096774193548) internal successors, (57), 54 states have internal predecessors, (57), 5 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2023-11-25 00:07:33,155 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 67 transitions. [2023-11-25 00:07:33,156 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 67 transitions. Word has length 4 [2023-11-25 00:07:33,156 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-25 00:07:33,157 INFO L495 AbstractCegarLoop]: Abstraction has 61 states and 67 transitions. [2023-11-25 00:07:33,157 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-25 00:07:33,157 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 67 transitions. [2023-11-25 00:07:33,158 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-11-25 00:07:33,158 INFO L187 NwaCegarLoop]: Found error trace [2023-11-25 00:07:33,158 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1] [2023-11-25 00:07:33,164 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eac3b1dc-db90-47c7-923f-1e12edf244a8/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-25 00:07:33,363 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eac3b1dc-db90-47c7-923f-1e12edf244a8/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2023-11-25 00:07:33,364 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2023-11-25 00:07:33,364 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-25 00:07:33,365 INFO L85 PathProgramCache]: Analyzing trace with hash -1773892784, now seen corresponding path program 1 times [2023-11-25 00:07:33,365 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-25 00:07:33,365 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2136165242] [2023-11-25 00:07:33,365 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-25 00:07:33,366 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-25 00:07:33,386 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-25 00:07:33,386 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1934672024] [2023-11-25 00:07:33,386 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-25 00:07:33,386 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-25 00:07:33,387 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eac3b1dc-db90-47c7-923f-1e12edf244a8/bin/utaipan-verify-SwPr7d2a91/z3 [2023-11-25 00:07:33,388 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eac3b1dc-db90-47c7-923f-1e12edf244a8/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-25 00:07:33,412 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eac3b1dc-db90-47c7-923f-1e12edf244a8/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-25 00:07:33,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-25 00:07:33,462 INFO L262 TraceCheckSpWp]: Trace formula consists of 68 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-25 00:07:33,464 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-25 00:07:33,558 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-25 00:07:33,558 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-25 00:07:33,560 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-25 00:07:33,560 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2136165242] [2023-11-25 00:07:33,560 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-25 00:07:33,561 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1934672024] [2023-11-25 00:07:33,561 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1934672024] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-25 00:07:33,563 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-25 00:07:33,563 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-25 00:07:33,563 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [206015240] [2023-11-25 00:07:33,563 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-25 00:07:33,566 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-25 00:07:33,567 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-25 00:07:33,568 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-25 00:07:33,568 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-25 00:07:33,569 INFO L87 Difference]: Start difference. First operand 61 states and 67 transitions. Second operand has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-25 00:07:33,710 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-25 00:07:33,710 INFO L93 Difference]: Finished difference Result 93 states and 101 transitions. [2023-11-25 00:07:33,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-25 00:07:33,711 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 9 [2023-11-25 00:07:33,712 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-25 00:07:33,715 INFO L225 Difference]: With dead ends: 93 [2023-11-25 00:07:33,715 INFO L226 Difference]: Without dead ends: 89 [2023-11-25 00:07:33,716 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-25 00:07:33,717 INFO L413 NwaCegarLoop]: 41 mSDtfsCounter, 38 mSDsluCounter, 25 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 66 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-25 00:07:33,718 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [41 Valid, 66 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-25 00:07:33,719 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89 states. [2023-11-25 00:07:33,737 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89 to 72. [2023-11-25 00:07:33,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 72 states, 42 states have (on average 1.7619047619047619) internal successors, (74), 63 states have internal predecessors, (74), 7 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2023-11-25 00:07:33,739 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 88 transitions. [2023-11-25 00:07:33,740 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 88 transitions. Word has length 9 [2023-11-25 00:07:33,741 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-25 00:07:33,741 INFO L495 AbstractCegarLoop]: Abstraction has 72 states and 88 transitions. [2023-11-25 00:07:33,741 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-25 00:07:33,741 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 88 transitions. [2023-11-25 00:07:33,742 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-11-25 00:07:33,742 INFO L187 NwaCegarLoop]: Found error trace [2023-11-25 00:07:33,742 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-25 00:07:33,752 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eac3b1dc-db90-47c7-923f-1e12edf244a8/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-11-25 00:07:33,949 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eac3b1dc-db90-47c7-923f-1e12edf244a8/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2023-11-25 00:07:33,950 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2023-11-25 00:07:33,953 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-25 00:07:33,954 INFO L85 PathProgramCache]: Analyzing trace with hash 843898598, now seen corresponding path program 1 times [2023-11-25 00:07:33,954 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-25 00:07:33,955 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [682084185] [2023-11-25 00:07:33,955 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-25 00:07:33,955 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-25 00:07:33,974 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-25 00:07:33,974 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [41898416] [2023-11-25 00:07:33,974 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-25 00:07:33,975 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-25 00:07:33,975 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eac3b1dc-db90-47c7-923f-1e12edf244a8/bin/utaipan-verify-SwPr7d2a91/z3 [2023-11-25 00:07:33,976 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eac3b1dc-db90-47c7-923f-1e12edf244a8/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-25 00:07:34,003 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eac3b1dc-db90-47c7-923f-1e12edf244a8/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-25 00:07:34,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-25 00:07:34,044 INFO L262 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-25 00:07:34,046 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-25 00:07:34,112 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-25 00:07:34,113 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-25 00:07:34,113 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-25 00:07:34,114 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [682084185] [2023-11-25 00:07:34,114 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-25 00:07:34,115 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [41898416] [2023-11-25 00:07:34,115 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [41898416] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-25 00:07:34,116 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-25 00:07:34,116 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-25 00:07:34,116 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1753623161] [2023-11-25 00:07:34,116 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-25 00:07:34,117 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-25 00:07:34,118 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-25 00:07:34,119 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-25 00:07:34,120 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-25 00:07:34,121 INFO L87 Difference]: Start difference. First operand 72 states and 88 transitions. Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-25 00:07:34,266 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-25 00:07:34,267 INFO L93 Difference]: Finished difference Result 141 states and 174 transitions. [2023-11-25 00:07:34,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-25 00:07:34,268 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 10 [2023-11-25 00:07:34,268 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-25 00:07:34,277 INFO L225 Difference]: With dead ends: 141 [2023-11-25 00:07:34,278 INFO L226 Difference]: Without dead ends: 137 [2023-11-25 00:07:34,278 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-25 00:07:34,283 INFO L413 NwaCegarLoop]: 39 mSDtfsCounter, 45 mSDsluCounter, 35 mSDsCounter, 0 mSdLazyCounter, 55 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 74 SdHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 55 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-25 00:07:34,285 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [48 Valid, 74 Invalid, 59 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 55 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-25 00:07:34,288 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 137 states. [2023-11-25 00:07:34,311 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 137 to 115. [2023-11-25 00:07:34,312 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 115 states, 78 states have (on average 1.7179487179487178) internal successors, (134), 99 states have internal predecessors, (134), 14 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2023-11-25 00:07:34,316 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 162 transitions. [2023-11-25 00:07:34,317 INFO L78 Accepts]: Start accepts. Automaton has 115 states and 162 transitions. Word has length 10 [2023-11-25 00:07:34,317 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-25 00:07:34,317 INFO L495 AbstractCegarLoop]: Abstraction has 115 states and 162 transitions. [2023-11-25 00:07:34,317 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-25 00:07:34,318 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 162 transitions. [2023-11-25 00:07:34,318 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2023-11-25 00:07:34,319 INFO L187 NwaCegarLoop]: Found error trace [2023-11-25 00:07:34,319 INFO L195 NwaCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-25 00:07:34,340 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eac3b1dc-db90-47c7-923f-1e12edf244a8/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-11-25 00:07:34,531 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eac3b1dc-db90-47c7-923f-1e12edf244a8/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2023-11-25 00:07:34,532 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2023-11-25 00:07:34,532 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-25 00:07:34,532 INFO L85 PathProgramCache]: Analyzing trace with hash -1034739291, now seen corresponding path program 1 times [2023-11-25 00:07:34,532 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-25 00:07:34,533 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1569048778] [2023-11-25 00:07:34,533 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-25 00:07:34,533 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-25 00:07:34,553 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-25 00:07:34,557 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1947848436] [2023-11-25 00:07:34,557 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-25 00:07:34,558 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-25 00:07:34,558 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eac3b1dc-db90-47c7-923f-1e12edf244a8/bin/utaipan-verify-SwPr7d2a91/z3 [2023-11-25 00:07:34,560 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eac3b1dc-db90-47c7-923f-1e12edf244a8/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-25 00:07:34,568 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eac3b1dc-db90-47c7-923f-1e12edf244a8/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-25 00:07:34,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-25 00:07:34,642 INFO L262 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-25 00:07:34,644 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-25 00:07:34,670 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-11-25 00:07:34,670 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-25 00:07:34,670 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-25 00:07:34,670 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1569048778] [2023-11-25 00:07:34,670 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-25 00:07:34,671 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1947848436] [2023-11-25 00:07:34,671 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1947848436] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-25 00:07:34,671 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-25 00:07:34,671 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-25 00:07:34,672 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1574600221] [2023-11-25 00:07:34,672 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-25 00:07:34,672 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-25 00:07:34,672 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-25 00:07:34,673 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-25 00:07:34,673 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-25 00:07:34,673 INFO L87 Difference]: Start difference. First operand 115 states and 162 transitions. Second operand has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2023-11-25 00:07:34,737 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-25 00:07:34,738 INFO L93 Difference]: Finished difference Result 129 states and 169 transitions. [2023-11-25 00:07:34,738 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-25 00:07:34,738 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 15 [2023-11-25 00:07:34,739 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-25 00:07:34,740 INFO L225 Difference]: With dead ends: 129 [2023-11-25 00:07:34,740 INFO L226 Difference]: Without dead ends: 127 [2023-11-25 00:07:34,741 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-25 00:07:34,742 INFO L413 NwaCegarLoop]: 47 mSDtfsCounter, 30 mSDsluCounter, 30 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 77 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-25 00:07:34,743 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 77 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-25 00:07:34,744 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 127 states. [2023-11-25 00:07:34,757 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 127 to 114. [2023-11-25 00:07:34,758 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 114 states, 78 states have (on average 1.6666666666666667) internal successors, (130), 98 states have internal predecessors, (130), 14 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2023-11-25 00:07:34,760 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 158 transitions. [2023-11-25 00:07:34,760 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 158 transitions. Word has length 15 [2023-11-25 00:07:34,760 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-25 00:07:34,760 INFO L495 AbstractCegarLoop]: Abstraction has 114 states and 158 transitions. [2023-11-25 00:07:34,761 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2023-11-25 00:07:34,761 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 158 transitions. [2023-11-25 00:07:34,761 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2023-11-25 00:07:34,761 INFO L187 NwaCegarLoop]: Found error trace [2023-11-25 00:07:34,762 INFO L195 NwaCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-25 00:07:34,778 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eac3b1dc-db90-47c7-923f-1e12edf244a8/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-11-25 00:07:34,967 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eac3b1dc-db90-47c7-923f-1e12edf244a8/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable3 [2023-11-25 00:07:34,968 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2023-11-25 00:07:34,968 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-25 00:07:34,968 INFO L85 PathProgramCache]: Analyzing trace with hash -2012148263, now seen corresponding path program 1 times [2023-11-25 00:07:34,968 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-25 00:07:34,969 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [507029659] [2023-11-25 00:07:34,969 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-25 00:07:34,969 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-25 00:07:34,988 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-25 00:07:34,988 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1442786384] [2023-11-25 00:07:34,988 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-25 00:07:34,989 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-25 00:07:34,989 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eac3b1dc-db90-47c7-923f-1e12edf244a8/bin/utaipan-verify-SwPr7d2a91/z3 [2023-11-25 00:07:34,990 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eac3b1dc-db90-47c7-923f-1e12edf244a8/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-25 00:07:34,999 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eac3b1dc-db90-47c7-923f-1e12edf244a8/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-11-25 00:07:35,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-25 00:07:35,041 INFO L262 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-25 00:07:35,043 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-25 00:07:35,094 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-11-25 00:07:35,095 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-25 00:07:35,095 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-25 00:07:35,095 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [507029659] [2023-11-25 00:07:35,095 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-25 00:07:35,095 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1442786384] [2023-11-25 00:07:35,095 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1442786384] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-25 00:07:35,096 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-25 00:07:35,096 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-25 00:07:35,096 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [499635599] [2023-11-25 00:07:35,096 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-25 00:07:35,096 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-25 00:07:35,097 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-25 00:07:35,097 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-25 00:07:35,097 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-25 00:07:35,097 INFO L87 Difference]: Start difference. First operand 114 states and 158 transitions. Second operand has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2023-11-25 00:07:35,175 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-25 00:07:35,175 INFO L93 Difference]: Finished difference Result 174 states and 237 transitions. [2023-11-25 00:07:35,175 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-25 00:07:35,176 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 16 [2023-11-25 00:07:35,176 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-25 00:07:35,177 INFO L225 Difference]: With dead ends: 174 [2023-11-25 00:07:35,178 INFO L226 Difference]: Without dead ends: 173 [2023-11-25 00:07:35,178 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-25 00:07:35,179 INFO L413 NwaCegarLoop]: 38 mSDtfsCounter, 45 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 62 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-25 00:07:35,181 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [47 Valid, 62 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-25 00:07:35,182 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 173 states. [2023-11-25 00:07:35,199 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 173 to 144. [2023-11-25 00:07:35,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 144 states, 104 states have (on average 1.6730769230769231) internal successors, (174), 124 states have internal predecessors, (174), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2023-11-25 00:07:35,202 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 144 states and 210 transitions. [2023-11-25 00:07:35,202 INFO L78 Accepts]: Start accepts. Automaton has 144 states and 210 transitions. Word has length 16 [2023-11-25 00:07:35,203 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-25 00:07:35,203 INFO L495 AbstractCegarLoop]: Abstraction has 144 states and 210 transitions. [2023-11-25 00:07:35,203 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2023-11-25 00:07:35,203 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states and 210 transitions. [2023-11-25 00:07:35,204 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2023-11-25 00:07:35,204 INFO L187 NwaCegarLoop]: Found error trace [2023-11-25 00:07:35,204 INFO L195 NwaCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-25 00:07:35,221 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eac3b1dc-db90-47c7-923f-1e12edf244a8/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-11-25 00:07:35,415 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eac3b1dc-db90-47c7-923f-1e12edf244a8/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-25 00:07:35,416 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2023-11-25 00:07:35,416 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-25 00:07:35,416 INFO L85 PathProgramCache]: Analyzing trace with hash -2012146885, now seen corresponding path program 1 times [2023-11-25 00:07:35,416 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-25 00:07:35,417 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1715274648] [2023-11-25 00:07:35,417 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-25 00:07:35,417 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-25 00:07:35,429 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-25 00:07:35,429 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [959379421] [2023-11-25 00:07:35,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-25 00:07:35,429 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-25 00:07:35,430 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eac3b1dc-db90-47c7-923f-1e12edf244a8/bin/utaipan-verify-SwPr7d2a91/z3 [2023-11-25 00:07:35,430 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eac3b1dc-db90-47c7-923f-1e12edf244a8/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-25 00:07:35,434 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eac3b1dc-db90-47c7-923f-1e12edf244a8/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-11-25 00:07:35,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-25 00:07:35,479 INFO L262 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-25 00:07:35,481 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-25 00:07:35,514 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-11-25 00:07:35,514 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-25 00:07:35,515 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-25 00:07:35,515 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1715274648] [2023-11-25 00:07:35,515 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-25 00:07:35,515 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [959379421] [2023-11-25 00:07:35,515 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [959379421] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-25 00:07:35,515 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-25 00:07:35,515 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-25 00:07:35,516 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1487767058] [2023-11-25 00:07:35,516 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-25 00:07:35,516 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-25 00:07:35,516 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-25 00:07:35,517 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-25 00:07:35,517 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-25 00:07:35,517 INFO L87 Difference]: Start difference. First operand 144 states and 210 transitions. Second operand has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2023-11-25 00:07:35,590 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-25 00:07:35,590 INFO L93 Difference]: Finished difference Result 164 states and 217 transitions. [2023-11-25 00:07:35,590 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-25 00:07:35,590 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 16 [2023-11-25 00:07:35,591 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-25 00:07:35,592 INFO L225 Difference]: With dead ends: 164 [2023-11-25 00:07:35,592 INFO L226 Difference]: Without dead ends: 162 [2023-11-25 00:07:35,592 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-25 00:07:35,594 INFO L413 NwaCegarLoop]: 42 mSDtfsCounter, 37 mSDsluCounter, 40 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 82 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-25 00:07:35,595 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [39 Valid, 82 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-25 00:07:35,596 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 162 states. [2023-11-25 00:07:35,625 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 162 to 144. [2023-11-25 00:07:35,626 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 144 states, 104 states have (on average 1.6346153846153846) internal successors, (170), 124 states have internal predecessors, (170), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2023-11-25 00:07:35,627 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 144 states and 206 transitions. [2023-11-25 00:07:35,628 INFO L78 Accepts]: Start accepts. Automaton has 144 states and 206 transitions. Word has length 16 [2023-11-25 00:07:35,628 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-25 00:07:35,628 INFO L495 AbstractCegarLoop]: Abstraction has 144 states and 206 transitions. [2023-11-25 00:07:35,628 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2023-11-25 00:07:35,628 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states and 206 transitions. [2023-11-25 00:07:35,629 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2023-11-25 00:07:35,629 INFO L187 NwaCegarLoop]: Found error trace [2023-11-25 00:07:35,629 INFO L195 NwaCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-25 00:07:35,642 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eac3b1dc-db90-47c7-923f-1e12edf244a8/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-11-25 00:07:35,829 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eac3b1dc-db90-47c7-923f-1e12edf244a8/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2023-11-25 00:07:35,830 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2023-11-25 00:07:35,830 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-25 00:07:35,830 INFO L85 PathProgramCache]: Analyzing trace with hash 2047913370, now seen corresponding path program 1 times [2023-11-25 00:07:35,831 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-25 00:07:35,831 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [442074472] [2023-11-25 00:07:35,831 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-25 00:07:35,831 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-25 00:07:35,843 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-25 00:07:35,843 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1648614394] [2023-11-25 00:07:35,843 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-25 00:07:35,843 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-25 00:07:35,843 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eac3b1dc-db90-47c7-923f-1e12edf244a8/bin/utaipan-verify-SwPr7d2a91/z3 [2023-11-25 00:07:35,844 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eac3b1dc-db90-47c7-923f-1e12edf244a8/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-25 00:07:35,886 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eac3b1dc-db90-47c7-923f-1e12edf244a8/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-11-25 00:07:35,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-25 00:07:35,918 INFO L262 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-25 00:07:35,919 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-25 00:07:36,005 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-11-25 00:07:36,006 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-25 00:07:36,006 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-25 00:07:36,006 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [442074472] [2023-11-25 00:07:36,007 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-25 00:07:36,007 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1648614394] [2023-11-25 00:07:36,007 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1648614394] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-25 00:07:36,007 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-25 00:07:36,007 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-25 00:07:36,008 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2080563257] [2023-11-25 00:07:36,008 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-25 00:07:36,009 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-25 00:07:36,011 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-25 00:07:36,012 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-25 00:07:36,014 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-25 00:07:36,015 INFO L87 Difference]: Start difference. First operand 144 states and 206 transitions. Second operand has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2023-11-25 00:07:36,119 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-25 00:07:36,119 INFO L93 Difference]: Finished difference Result 173 states and 229 transitions. [2023-11-25 00:07:36,120 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-25 00:07:36,120 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 17 [2023-11-25 00:07:36,120 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-25 00:07:36,125 INFO L225 Difference]: With dead ends: 173 [2023-11-25 00:07:36,125 INFO L226 Difference]: Without dead ends: 172 [2023-11-25 00:07:36,125 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-25 00:07:36,127 INFO L413 NwaCegarLoop]: 39 mSDtfsCounter, 43 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 63 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-25 00:07:36,127 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [45 Valid, 63 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-25 00:07:36,128 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 172 states. [2023-11-25 00:07:36,141 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 172 to 144. [2023-11-25 00:07:36,142 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 144 states, 104 states have (on average 1.5961538461538463) internal successors, (166), 124 states have internal predecessors, (166), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2023-11-25 00:07:36,143 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 144 states and 202 transitions. [2023-11-25 00:07:36,144 INFO L78 Accepts]: Start accepts. Automaton has 144 states and 202 transitions. Word has length 17 [2023-11-25 00:07:36,144 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-25 00:07:36,144 INFO L495 AbstractCegarLoop]: Abstraction has 144 states and 202 transitions. [2023-11-25 00:07:36,144 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2023-11-25 00:07:36,144 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states and 202 transitions. [2023-11-25 00:07:36,145 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2023-11-25 00:07:36,145 INFO L187 NwaCegarLoop]: Found error trace [2023-11-25 00:07:36,145 INFO L195 NwaCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-25 00:07:36,159 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eac3b1dc-db90-47c7-923f-1e12edf244a8/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2023-11-25 00:07:36,352 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eac3b1dc-db90-47c7-923f-1e12edf244a8/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2023-11-25 00:07:36,352 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2023-11-25 00:07:36,353 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-25 00:07:36,353 INFO L85 PathProgramCache]: Analyzing trace with hash -939194885, now seen corresponding path program 1 times [2023-11-25 00:07:36,353 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-25 00:07:36,353 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [839415189] [2023-11-25 00:07:36,353 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-25 00:07:36,353 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-25 00:07:36,367 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-25 00:07:36,367 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [463521001] [2023-11-25 00:07:36,367 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-25 00:07:36,368 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-25 00:07:36,368 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eac3b1dc-db90-47c7-923f-1e12edf244a8/bin/utaipan-verify-SwPr7d2a91/z3 [2023-11-25 00:07:36,369 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eac3b1dc-db90-47c7-923f-1e12edf244a8/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-25 00:07:36,387 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eac3b1dc-db90-47c7-923f-1e12edf244a8/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-11-25 00:07:36,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-25 00:07:36,422 INFO L262 TraceCheckSpWp]: Trace formula consists of 82 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-25 00:07:36,424 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-25 00:07:36,474 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-11-25 00:07:36,474 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-25 00:07:36,475 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-25 00:07:36,475 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [839415189] [2023-11-25 00:07:36,475 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-25 00:07:36,475 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [463521001] [2023-11-25 00:07:36,476 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [463521001] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-25 00:07:36,476 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-25 00:07:36,476 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-25 00:07:36,476 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1695155207] [2023-11-25 00:07:36,476 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-25 00:07:36,477 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-25 00:07:36,477 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-25 00:07:36,478 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-25 00:07:36,478 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-25 00:07:36,478 INFO L87 Difference]: Start difference. First operand 144 states and 202 transitions. Second operand has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2023-11-25 00:07:36,565 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-25 00:07:36,565 INFO L93 Difference]: Finished difference Result 166 states and 217 transitions. [2023-11-25 00:07:36,566 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-25 00:07:36,566 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 18 [2023-11-25 00:07:36,567 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-25 00:07:36,568 INFO L225 Difference]: With dead ends: 166 [2023-11-25 00:07:36,568 INFO L226 Difference]: Without dead ends: 165 [2023-11-25 00:07:36,569 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-25 00:07:36,570 INFO L413 NwaCegarLoop]: 38 mSDtfsCounter, 79 mSDsluCounter, 34 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 84 SdHoareTripleChecker+Valid, 72 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-25 00:07:36,571 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [84 Valid, 72 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-25 00:07:36,572 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 165 states. [2023-11-25 00:07:36,587 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 165 to 144. [2023-11-25 00:07:36,588 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 144 states, 104 states have (on average 1.5576923076923077) internal successors, (162), 124 states have internal predecessors, (162), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2023-11-25 00:07:36,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 144 states and 198 transitions. [2023-11-25 00:07:36,592 INFO L78 Accepts]: Start accepts. Automaton has 144 states and 198 transitions. Word has length 18 [2023-11-25 00:07:36,592 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-25 00:07:36,593 INFO L495 AbstractCegarLoop]: Abstraction has 144 states and 198 transitions. [2023-11-25 00:07:36,593 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2023-11-25 00:07:36,593 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states and 198 transitions. [2023-11-25 00:07:36,595 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2023-11-25 00:07:36,595 INFO L187 NwaCegarLoop]: Found error trace [2023-11-25 00:07:36,596 INFO L195 NwaCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-25 00:07:36,607 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eac3b1dc-db90-47c7-923f-1e12edf244a8/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2023-11-25 00:07:36,802 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eac3b1dc-db90-47c7-923f-1e12edf244a8/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2023-11-25 00:07:36,803 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2023-11-25 00:07:36,803 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-25 00:07:36,803 INFO L85 PathProgramCache]: Analyzing trace with hash 949729724, now seen corresponding path program 1 times [2023-11-25 00:07:36,803 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-25 00:07:36,803 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2053445781] [2023-11-25 00:07:36,804 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-25 00:07:36,804 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-25 00:07:36,828 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-25 00:07:36,838 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [440204983] [2023-11-25 00:07:36,838 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-25 00:07:36,839 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-25 00:07:36,839 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eac3b1dc-db90-47c7-923f-1e12edf244a8/bin/utaipan-verify-SwPr7d2a91/z3 [2023-11-25 00:07:36,847 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eac3b1dc-db90-47c7-923f-1e12edf244a8/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-25 00:07:36,856 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eac3b1dc-db90-47c7-923f-1e12edf244a8/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-11-25 00:07:36,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-25 00:07:36,909 INFO L262 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-25 00:07:36,912 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-25 00:07:37,014 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-11-25 00:07:37,014 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-25 00:07:37,015 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-25 00:07:37,015 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2053445781] [2023-11-25 00:07:37,015 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-25 00:07:37,015 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [440204983] [2023-11-25 00:07:37,015 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [440204983] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-25 00:07:37,015 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-25 00:07:37,016 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-25 00:07:37,018 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1879468566] [2023-11-25 00:07:37,018 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-25 00:07:37,019 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-25 00:07:37,019 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-25 00:07:37,019 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-25 00:07:37,019 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-25 00:07:37,020 INFO L87 Difference]: Start difference. First operand 144 states and 198 transitions. Second operand has 5 states, 4 states have (on average 2.75) internal successors, (11), 5 states have internal predecessors, (11), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2023-11-25 00:07:37,229 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-25 00:07:37,229 INFO L93 Difference]: Finished difference Result 198 states and 248 transitions. [2023-11-25 00:07:37,230 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-25 00:07:37,230 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.75) internal successors, (11), 5 states have internal predecessors, (11), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 19 [2023-11-25 00:07:37,230 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-25 00:07:37,232 INFO L225 Difference]: With dead ends: 198 [2023-11-25 00:07:37,232 INFO L226 Difference]: Without dead ends: 197 [2023-11-25 00:07:37,233 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2023-11-25 00:07:37,233 INFO L413 NwaCegarLoop]: 31 mSDtfsCounter, 129 mSDsluCounter, 46 mSDsCounter, 0 mSdLazyCounter, 122 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 133 SdHoareTripleChecker+Valid, 77 SdHoareTripleChecker+Invalid, 131 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 122 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-25 00:07:37,234 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [133 Valid, 77 Invalid, 131 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 122 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-25 00:07:37,234 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 197 states. [2023-11-25 00:07:37,253 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 197 to 144. [2023-11-25 00:07:37,254 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 144 states, 104 states have (on average 1.5384615384615385) internal successors, (160), 124 states have internal predecessors, (160), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2023-11-25 00:07:37,257 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 144 states and 196 transitions. [2023-11-25 00:07:37,257 INFO L78 Accepts]: Start accepts. Automaton has 144 states and 196 transitions. Word has length 19 [2023-11-25 00:07:37,258 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-25 00:07:37,258 INFO L495 AbstractCegarLoop]: Abstraction has 144 states and 196 transitions. [2023-11-25 00:07:37,258 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.75) internal successors, (11), 5 states have internal predecessors, (11), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2023-11-25 00:07:37,258 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states and 196 transitions. [2023-11-25 00:07:37,259 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2023-11-25 00:07:37,259 INFO L187 NwaCegarLoop]: Found error trace [2023-11-25 00:07:37,259 INFO L195 NwaCegarLoop]: trace histogram [5, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-25 00:07:37,267 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eac3b1dc-db90-47c7-923f-1e12edf244a8/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2023-11-25 00:07:37,465 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eac3b1dc-db90-47c7-923f-1e12edf244a8/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-25 00:07:37,465 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2023-11-25 00:07:37,465 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-25 00:07:37,466 INFO L85 PathProgramCache]: Analyzing trace with hash -288529031, now seen corresponding path program 1 times [2023-11-25 00:07:37,466 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-25 00:07:37,466 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [924646729] [2023-11-25 00:07:37,466 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-25 00:07:37,466 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-25 00:07:37,478 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-25 00:07:37,478 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [752566592] [2023-11-25 00:07:37,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-25 00:07:37,478 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-25 00:07:37,478 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eac3b1dc-db90-47c7-923f-1e12edf244a8/bin/utaipan-verify-SwPr7d2a91/z3 [2023-11-25 00:07:37,479 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eac3b1dc-db90-47c7-923f-1e12edf244a8/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-25 00:07:37,495 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eac3b1dc-db90-47c7-923f-1e12edf244a8/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2023-11-25 00:07:37,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-25 00:07:37,533 INFO L262 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-25 00:07:37,535 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-25 00:07:37,618 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-11-25 00:07:37,618 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-25 00:07:37,806 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-25 00:07:37,806 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [924646729] [2023-11-25 00:07:37,806 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-25 00:07:37,806 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [752566592] [2023-11-25 00:07:37,806 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [752566592] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-25 00:07:37,807 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [700142312] [2023-11-25 00:07:37,830 INFO L159 IcfgInterpreter]: Started Sifa with 15 locations of interest [2023-11-25 00:07:37,831 INFO L166 IcfgInterpreter]: Building call graph [2023-11-25 00:07:37,834 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-11-25 00:07:37,840 INFO L176 IcfgInterpreter]: Starting interpretation [2023-11-25 00:07:37,841 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-11-25 00:07:42,083 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 3 for LOIs [2023-11-25 00:07:42,085 INFO L180 IcfgInterpreter]: Interpretation finished [2023-11-25 00:07:42,901 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [700142312] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-25 00:07:42,901 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-25 00:07:42,901 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [3] total 9 [2023-11-25 00:07:42,902 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1001717689] [2023-11-25 00:07:42,902 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-25 00:07:42,902 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-25 00:07:42,902 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-25 00:07:42,903 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-25 00:07:42,903 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2023-11-25 00:07:42,903 INFO L87 Difference]: Start difference. First operand 144 states and 196 transitions. Second operand has 8 states, 6 states have (on average 1.8333333333333333) internal successors, (11), 6 states have internal predecessors, (11), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2023-11-25 00:07:43,418 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-25 00:07:43,418 INFO L93 Difference]: Finished difference Result 171 states and 218 transitions. [2023-11-25 00:07:43,418 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-25 00:07:43,419 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 6 states have (on average 1.8333333333333333) internal successors, (11), 6 states have internal predecessors, (11), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 27 [2023-11-25 00:07:43,419 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-25 00:07:43,420 INFO L225 Difference]: With dead ends: 171 [2023-11-25 00:07:43,421 INFO L226 Difference]: Without dead ends: 153 [2023-11-25 00:07:43,421 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 50 SyntacticMatches, 8 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 103 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2023-11-25 00:07:43,422 INFO L413 NwaCegarLoop]: 26 mSDtfsCounter, 85 mSDsluCounter, 37 mSDsCounter, 0 mSdLazyCounter, 243 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 91 SdHoareTripleChecker+Valid, 63 SdHoareTripleChecker+Invalid, 263 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 243 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-25 00:07:43,422 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [91 Valid, 63 Invalid, 263 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 243 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-25 00:07:43,423 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 153 states. [2023-11-25 00:07:43,446 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 153 to 137. [2023-11-25 00:07:43,447 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 137 states, 100 states have (on average 1.45) internal successors, (145), 117 states have internal predecessors, (145), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2023-11-25 00:07:43,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 137 states to 137 states and 181 transitions. [2023-11-25 00:07:43,448 INFO L78 Accepts]: Start accepts. Automaton has 137 states and 181 transitions. Word has length 27 [2023-11-25 00:07:43,449 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-25 00:07:43,449 INFO L495 AbstractCegarLoop]: Abstraction has 137 states and 181 transitions. [2023-11-25 00:07:43,449 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 6 states have (on average 1.8333333333333333) internal successors, (11), 6 states have internal predecessors, (11), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2023-11-25 00:07:43,449 INFO L276 IsEmpty]: Start isEmpty. Operand 137 states and 181 transitions. [2023-11-25 00:07:43,451 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2023-11-25 00:07:43,451 INFO L187 NwaCegarLoop]: Found error trace [2023-11-25 00:07:43,451 INFO L195 NwaCegarLoop]: trace histogram [5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-25 00:07:43,462 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eac3b1dc-db90-47c7-923f-1e12edf244a8/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2023-11-25 00:07:43,656 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eac3b1dc-db90-47c7-923f-1e12edf244a8/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2023-11-25 00:07:43,657 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2023-11-25 00:07:43,657 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-25 00:07:43,657 INFO L85 PathProgramCache]: Analyzing trace with hash 116423658, now seen corresponding path program 1 times [2023-11-25 00:07:43,657 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-25 00:07:43,658 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1672467293] [2023-11-25 00:07:43,658 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-25 00:07:43,658 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-25 00:07:43,679 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-25 00:07:43,687 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1692908694] [2023-11-25 00:07:43,687 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-25 00:07:43,687 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-25 00:07:43,687 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eac3b1dc-db90-47c7-923f-1e12edf244a8/bin/utaipan-verify-SwPr7d2a91/z3 [2023-11-25 00:07:43,689 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eac3b1dc-db90-47c7-923f-1e12edf244a8/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-25 00:07:43,707 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eac3b1dc-db90-47c7-923f-1e12edf244a8/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2023-11-25 00:07:43,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-25 00:07:43,752 INFO L262 TraceCheckSpWp]: Trace formula consists of 112 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-25 00:07:43,755 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-25 00:07:43,762 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-11-25 00:07:43,763 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-25 00:07:43,763 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-25 00:07:43,763 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1672467293] [2023-11-25 00:07:43,763 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-25 00:07:43,763 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1692908694] [2023-11-25 00:07:43,764 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1692908694] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-25 00:07:43,764 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-25 00:07:43,764 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-25 00:07:43,764 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [389367499] [2023-11-25 00:07:43,764 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-25 00:07:43,765 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-25 00:07:43,765 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-25 00:07:43,766 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-25 00:07:43,766 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-25 00:07:43,766 INFO L87 Difference]: Start difference. First operand 137 states and 181 transitions. Second operand has 3 states, 2 states have (on average 10.0) internal successors, (20), 3 states have internal predecessors, (20), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2023-11-25 00:07:43,831 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-25 00:07:43,831 INFO L93 Difference]: Finished difference Result 137 states and 181 transitions. [2023-11-25 00:07:43,832 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-25 00:07:43,832 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 10.0) internal successors, (20), 3 states have internal predecessors, (20), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 34 [2023-11-25 00:07:43,832 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-25 00:07:43,836 INFO L225 Difference]: With dead ends: 137 [2023-11-25 00:07:43,836 INFO L226 Difference]: Without dead ends: 136 [2023-11-25 00:07:43,837 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-25 00:07:43,838 INFO L413 NwaCegarLoop]: 53 mSDtfsCounter, 3 mSDsluCounter, 34 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 87 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-25 00:07:43,839 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 87 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-25 00:07:43,840 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 136 states. [2023-11-25 00:07:43,860 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 136 to 136. [2023-11-25 00:07:43,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 136 states, 100 states have (on average 1.43) internal successors, (143), 116 states have internal predecessors, (143), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2023-11-25 00:07:43,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 136 states to 136 states and 179 transitions. [2023-11-25 00:07:43,863 INFO L78 Accepts]: Start accepts. Automaton has 136 states and 179 transitions. Word has length 34 [2023-11-25 00:07:43,863 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-25 00:07:43,863 INFO L495 AbstractCegarLoop]: Abstraction has 136 states and 179 transitions. [2023-11-25 00:07:43,863 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 10.0) internal successors, (20), 3 states have internal predecessors, (20), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2023-11-25 00:07:43,864 INFO L276 IsEmpty]: Start isEmpty. Operand 136 states and 179 transitions. [2023-11-25 00:07:43,869 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2023-11-25 00:07:43,870 INFO L187 NwaCegarLoop]: Found error trace [2023-11-25 00:07:43,870 INFO L195 NwaCegarLoop]: trace histogram [5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-25 00:07:43,876 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eac3b1dc-db90-47c7-923f-1e12edf244a8/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2023-11-25 00:07:44,076 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eac3b1dc-db90-47c7-923f-1e12edf244a8/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2023-11-25 00:07:44,076 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2023-11-25 00:07:44,077 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-25 00:07:44,077 INFO L85 PathProgramCache]: Analyzing trace with hash -685833785, now seen corresponding path program 1 times [2023-11-25 00:07:44,077 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-25 00:07:44,077 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [112960917] [2023-11-25 00:07:44,077 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-25 00:07:44,077 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-25 00:07:44,099 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-25 00:07:44,113 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1036423449] [2023-11-25 00:07:44,114 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-25 00:07:44,114 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-25 00:07:44,114 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eac3b1dc-db90-47c7-923f-1e12edf244a8/bin/utaipan-verify-SwPr7d2a91/z3 [2023-11-25 00:07:44,115 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eac3b1dc-db90-47c7-923f-1e12edf244a8/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-25 00:07:44,160 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eac3b1dc-db90-47c7-923f-1e12edf244a8/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2023-11-25 00:07:44,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-25 00:07:44,185 INFO L262 TraceCheckSpWp]: Trace formula consists of 113 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-25 00:07:44,186 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-25 00:07:44,228 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-11-25 00:07:44,228 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-25 00:07:44,228 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-25 00:07:44,229 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [112960917] [2023-11-25 00:07:44,229 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-25 00:07:44,229 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1036423449] [2023-11-25 00:07:44,229 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1036423449] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-25 00:07:44,229 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-25 00:07:44,229 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-25 00:07:44,230 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [107096060] [2023-11-25 00:07:44,230 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-25 00:07:44,230 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-25 00:07:44,231 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-25 00:07:44,231 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-25 00:07:44,231 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-25 00:07:44,232 INFO L87 Difference]: Start difference. First operand 136 states and 179 transitions. Second operand has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2023-11-25 00:07:44,283 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-25 00:07:44,284 INFO L93 Difference]: Finished difference Result 160 states and 191 transitions. [2023-11-25 00:07:44,284 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-25 00:07:44,284 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 35 [2023-11-25 00:07:44,285 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-25 00:07:44,286 INFO L225 Difference]: With dead ends: 160 [2023-11-25 00:07:44,286 INFO L226 Difference]: Without dead ends: 93 [2023-11-25 00:07:44,287 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-25 00:07:44,287 INFO L413 NwaCegarLoop]: 52 mSDtfsCounter, 11 mSDsluCounter, 33 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 85 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-25 00:07:44,288 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 85 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-25 00:07:44,289 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states. [2023-11-25 00:07:44,302 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 89. [2023-11-25 00:07:44,302 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 89 states, 59 states have (on average 1.4406779661016949) internal successors, (85), 75 states have internal predecessors, (85), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2023-11-25 00:07:44,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 89 states and 109 transitions. [2023-11-25 00:07:44,303 INFO L78 Accepts]: Start accepts. Automaton has 89 states and 109 transitions. Word has length 35 [2023-11-25 00:07:44,304 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-25 00:07:44,304 INFO L495 AbstractCegarLoop]: Abstraction has 89 states and 109 transitions. [2023-11-25 00:07:44,304 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2023-11-25 00:07:44,304 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 109 transitions. [2023-11-25 00:07:44,305 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2023-11-25 00:07:44,305 INFO L187 NwaCegarLoop]: Found error trace [2023-11-25 00:07:44,305 INFO L195 NwaCegarLoop]: trace histogram [8, 2, 2, 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] [2023-11-25 00:07:44,317 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eac3b1dc-db90-47c7-923f-1e12edf244a8/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2023-11-25 00:07:44,511 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eac3b1dc-db90-47c7-923f-1e12edf244a8/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2023-11-25 00:07:44,512 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2023-11-25 00:07:44,512 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-25 00:07:44,512 INFO L85 PathProgramCache]: Analyzing trace with hash -1468373349, now seen corresponding path program 1 times [2023-11-25 00:07:44,512 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-25 00:07:44,512 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1401125839] [2023-11-25 00:07:44,512 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-25 00:07:44,512 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-25 00:07:44,529 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-25 00:07:44,536 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1595696499] [2023-11-25 00:07:44,537 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-25 00:07:44,537 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-25 00:07:44,537 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eac3b1dc-db90-47c7-923f-1e12edf244a8/bin/utaipan-verify-SwPr7d2a91/z3 [2023-11-25 00:07:44,538 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eac3b1dc-db90-47c7-923f-1e12edf244a8/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-25 00:07:44,542 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eac3b1dc-db90-47c7-923f-1e12edf244a8/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2023-11-25 00:07:44,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-25 00:07:44,601 INFO L262 TraceCheckSpWp]: Trace formula consists of 144 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-25 00:07:44,604 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-25 00:07:44,676 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2023-11-25 00:07:44,676 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-25 00:07:44,783 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2023-11-25 00:07:44,784 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-25 00:07:44,784 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1401125839] [2023-11-25 00:07:44,784 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-25 00:07:44,784 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1595696499] [2023-11-25 00:07:44,784 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1595696499] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-25 00:07:44,784 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [752219568] [2023-11-25 00:07:44,788 INFO L159 IcfgInterpreter]: Started Sifa with 29 locations of interest [2023-11-25 00:07:44,788 INFO L166 IcfgInterpreter]: Building call graph [2023-11-25 00:07:44,789 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-11-25 00:07:44,789 INFO L176 IcfgInterpreter]: Starting interpretation [2023-11-25 00:07:44,789 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-11-25 00:07:46,340 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 1 for LOIs [2023-11-25 00:07:46,341 INFO L180 IcfgInterpreter]: Interpretation finished [2023-11-25 00:07:47,276 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [752219568] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-25 00:07:47,276 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2023-11-25 00:07:47,276 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [3, 3] total 16 [2023-11-25 00:07:47,276 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [944446209] [2023-11-25 00:07:47,277 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-25 00:07:47,277 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-11-25 00:07:47,277 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-25 00:07:47,278 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-11-25 00:07:47,278 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=85, Invalid=187, Unknown=0, NotChecked=0, Total=272 [2023-11-25 00:07:47,279 INFO L87 Difference]: Start difference. First operand 89 states and 109 transitions. Second operand has 13 states, 11 states have (on average 2.090909090909091) internal successors, (23), 10 states have internal predecessors, (23), 5 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 3 states have call predecessors, (5), 5 states have call successors, (5) [2023-11-25 00:07:47,828 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-25 00:07:47,828 INFO L93 Difference]: Finished difference Result 172 states and 210 transitions. [2023-11-25 00:07:47,829 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-25 00:07:47,829 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 11 states have (on average 2.090909090909091) internal successors, (23), 10 states have internal predecessors, (23), 5 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 3 states have call predecessors, (5), 5 states have call successors, (5) Word has length 49 [2023-11-25 00:07:47,829 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-25 00:07:47,830 INFO L225 Difference]: With dead ends: 172 [2023-11-25 00:07:47,831 INFO L226 Difference]: Without dead ends: 91 [2023-11-25 00:07:47,832 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 146 GetRequests, 129 SyntacticMatches, 1 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 80 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=97, Invalid=209, Unknown=0, NotChecked=0, Total=306 [2023-11-25 00:07:47,832 INFO L413 NwaCegarLoop]: 34 mSDtfsCounter, 55 mSDsluCounter, 39 mSDsCounter, 0 mSdLazyCounter, 284 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 73 SdHoareTripleChecker+Invalid, 316 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 284 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-25 00:07:47,833 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [58 Valid, 73 Invalid, 316 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 284 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-25 00:07:47,834 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91 states. [2023-11-25 00:07:47,850 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91 to 78. [2023-11-25 00:07:47,851 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 78 states, 50 states have (on average 1.38) internal successors, (69), 66 states have internal predecessors, (69), 10 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2023-11-25 00:07:47,852 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 89 transitions. [2023-11-25 00:07:47,852 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 89 transitions. Word has length 49 [2023-11-25 00:07:47,853 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-25 00:07:47,853 INFO L495 AbstractCegarLoop]: Abstraction has 78 states and 89 transitions. [2023-11-25 00:07:47,853 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 11 states have (on average 2.090909090909091) internal successors, (23), 10 states have internal predecessors, (23), 5 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 3 states have call predecessors, (5), 5 states have call successors, (5) [2023-11-25 00:07:47,854 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 89 transitions. [2023-11-25 00:07:47,854 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2023-11-25 00:07:47,855 INFO L187 NwaCegarLoop]: Found error trace [2023-11-25 00:07:47,855 INFO L195 NwaCegarLoop]: trace histogram [8, 2, 2, 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] [2023-11-25 00:07:47,864 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eac3b1dc-db90-47c7-923f-1e12edf244a8/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2023-11-25 00:07:48,062 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eac3b1dc-db90-47c7-923f-1e12edf244a8/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-25 00:07:48,062 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2023-11-25 00:07:48,062 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-25 00:07:48,063 INFO L85 PathProgramCache]: Analyzing trace with hash -2121081761, now seen corresponding path program 1 times [2023-11-25 00:07:48,063 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-25 00:07:48,063 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1096217771] [2023-11-25 00:07:48,063 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-25 00:07:48,063 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-25 00:07:48,076 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-25 00:07:48,076 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [58130279] [2023-11-25 00:07:48,076 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-25 00:07:48,077 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-25 00:07:48,077 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eac3b1dc-db90-47c7-923f-1e12edf244a8/bin/utaipan-verify-SwPr7d2a91/z3 [2023-11-25 00:07:48,078 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eac3b1dc-db90-47c7-923f-1e12edf244a8/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-25 00:07:48,099 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eac3b1dc-db90-47c7-923f-1e12edf244a8/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2023-11-25 00:07:48,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-25 00:07:48,158 INFO L262 TraceCheckSpWp]: Trace formula consists of 152 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-25 00:07:48,160 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-25 00:07:48,380 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2023-11-25 00:07:48,380 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-25 00:07:48,380 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-25 00:07:48,381 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1096217771] [2023-11-25 00:07:48,381 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-25 00:07:48,381 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [58130279] [2023-11-25 00:07:48,381 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [58130279] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-25 00:07:48,381 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-25 00:07:48,382 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-25 00:07:48,382 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2088447854] [2023-11-25 00:07:48,382 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-25 00:07:48,384 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-25 00:07:48,384 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-25 00:07:48,385 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-25 00:07:48,385 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2023-11-25 00:07:48,386 INFO L87 Difference]: Start difference. First operand 78 states and 89 transitions. Second operand has 5 states, 4 states have (on average 6.75) internal successors, (27), 5 states have internal predecessors, (27), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2023-11-25 00:07:48,572 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-25 00:07:48,573 INFO L93 Difference]: Finished difference Result 96 states and 109 transitions. [2023-11-25 00:07:48,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-25 00:07:48,573 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 6.75) internal successors, (27), 5 states have internal predecessors, (27), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 53 [2023-11-25 00:07:48,574 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-25 00:07:48,575 INFO L225 Difference]: With dead ends: 96 [2023-11-25 00:07:48,575 INFO L226 Difference]: Without dead ends: 95 [2023-11-25 00:07:48,576 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2023-11-25 00:07:48,577 INFO L413 NwaCegarLoop]: 49 mSDtfsCounter, 35 mSDsluCounter, 67 mSDsCounter, 0 mSdLazyCounter, 115 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 116 SdHoareTripleChecker+Invalid, 117 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 115 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-25 00:07:48,577 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [45 Valid, 116 Invalid, 117 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 115 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-25 00:07:48,578 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95 states. [2023-11-25 00:07:48,612 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95 to 79. [2023-11-25 00:07:48,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 79 states, 51 states have (on average 1.3725490196078431) internal successors, (70), 67 states have internal predecessors, (70), 10 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2023-11-25 00:07:48,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 90 transitions. [2023-11-25 00:07:48,614 INFO L78 Accepts]: Start accepts. Automaton has 79 states and 90 transitions. Word has length 53 [2023-11-25 00:07:48,614 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-25 00:07:48,615 INFO L495 AbstractCegarLoop]: Abstraction has 79 states and 90 transitions. [2023-11-25 00:07:48,615 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 6.75) internal successors, (27), 5 states have internal predecessors, (27), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2023-11-25 00:07:48,615 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 90 transitions. [2023-11-25 00:07:48,616 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2023-11-25 00:07:48,616 INFO L187 NwaCegarLoop]: Found error trace [2023-11-25 00:07:48,616 INFO L195 NwaCegarLoop]: trace histogram [8, 2, 2, 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] [2023-11-25 00:07:48,629 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eac3b1dc-db90-47c7-923f-1e12edf244a8/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2023-11-25 00:07:48,823 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eac3b1dc-db90-47c7-923f-1e12edf244a8/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-25 00:07:48,824 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2023-11-25 00:07:48,824 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-25 00:07:48,824 INFO L85 PathProgramCache]: Analyzing trace with hash -1329025034, now seen corresponding path program 1 times [2023-11-25 00:07:48,824 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-25 00:07:48,825 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [917736273] [2023-11-25 00:07:48,825 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-25 00:07:48,825 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-25 00:07:48,851 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-25 00:07:48,851 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1333752335] [2023-11-25 00:07:48,851 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-25 00:07:48,852 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-25 00:07:48,852 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eac3b1dc-db90-47c7-923f-1e12edf244a8/bin/utaipan-verify-SwPr7d2a91/z3 [2023-11-25 00:07:48,853 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eac3b1dc-db90-47c7-923f-1e12edf244a8/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-25 00:07:48,887 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eac3b1dc-db90-47c7-923f-1e12edf244a8/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2023-11-25 00:07:48,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-25 00:07:48,933 INFO L262 TraceCheckSpWp]: Trace formula consists of 153 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-25 00:07:48,935 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-25 00:07:49,099 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2023-11-25 00:07:49,099 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-25 00:07:49,099 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-25 00:07:49,099 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [917736273] [2023-11-25 00:07:49,100 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-25 00:07:49,100 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1333752335] [2023-11-25 00:07:49,100 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1333752335] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-25 00:07:49,100 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-25 00:07:49,100 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-25 00:07:49,101 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [287262834] [2023-11-25 00:07:49,101 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-25 00:07:49,101 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-25 00:07:49,102 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-25 00:07:49,102 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-25 00:07:49,102 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-25 00:07:49,103 INFO L87 Difference]: Start difference. First operand 79 states and 90 transitions. Second operand has 4 states, 3 states have (on average 9.333333333333334) internal successors, (28), 4 states have internal predecessors, (28), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2023-11-25 00:07:49,208 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-25 00:07:49,208 INFO L93 Difference]: Finished difference Result 81 states and 92 transitions. [2023-11-25 00:07:49,209 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-25 00:07:49,209 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 9.333333333333334) internal successors, (28), 4 states have internal predecessors, (28), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 54 [2023-11-25 00:07:49,209 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-25 00:07:49,210 INFO L225 Difference]: With dead ends: 81 [2023-11-25 00:07:49,210 INFO L226 Difference]: Without dead ends: 80 [2023-11-25 00:07:49,211 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-25 00:07:49,212 INFO L413 NwaCegarLoop]: 43 mSDtfsCounter, 20 mSDsluCounter, 44 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 87 SdHoareTripleChecker+Invalid, 69 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-25 00:07:49,212 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 87 Invalid, 69 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-25 00:07:49,213 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2023-11-25 00:07:49,233 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 80. [2023-11-25 00:07:49,234 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 80 states, 52 states have (on average 1.3653846153846154) internal successors, (71), 68 states have internal predecessors, (71), 10 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2023-11-25 00:07:49,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 91 transitions. [2023-11-25 00:07:49,235 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 91 transitions. Word has length 54 [2023-11-25 00:07:49,235 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-25 00:07:49,236 INFO L495 AbstractCegarLoop]: Abstraction has 80 states and 91 transitions. [2023-11-25 00:07:49,236 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 9.333333333333334) internal successors, (28), 4 states have internal predecessors, (28), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2023-11-25 00:07:49,236 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 91 transitions. [2023-11-25 00:07:49,237 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2023-11-25 00:07:49,237 INFO L187 NwaCegarLoop]: Found error trace [2023-11-25 00:07:49,237 INFO L195 NwaCegarLoop]: trace histogram [8, 2, 2, 2, 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] [2023-11-25 00:07:49,247 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eac3b1dc-db90-47c7-923f-1e12edf244a8/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Ended with exit code 0 [2023-11-25 00:07:49,447 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14,16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eac3b1dc-db90-47c7-923f-1e12edf244a8/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-25 00:07:49,447 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2023-11-25 00:07:49,448 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-25 00:07:49,448 INFO L85 PathProgramCache]: Analyzing trace with hash -1587768232, now seen corresponding path program 1 times [2023-11-25 00:07:49,448 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-25 00:07:49,448 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1560644313] [2023-11-25 00:07:49,448 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-25 00:07:49,448 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-25 00:07:49,460 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-25 00:07:49,460 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1741164220] [2023-11-25 00:07:49,461 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-25 00:07:49,461 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-25 00:07:49,461 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eac3b1dc-db90-47c7-923f-1e12edf244a8/bin/utaipan-verify-SwPr7d2a91/z3 [2023-11-25 00:07:49,462 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eac3b1dc-db90-47c7-923f-1e12edf244a8/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-25 00:07:49,484 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eac3b1dc-db90-47c7-923f-1e12edf244a8/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2023-11-25 00:07:49,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-25 00:07:49,551 INFO L262 TraceCheckSpWp]: Trace formula consists of 157 conjuncts, 14 conjunts are in the unsatisfiable core [2023-11-25 00:07:49,553 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-25 00:07:49,836 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2023-11-25 00:07:49,836 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-25 00:07:50,253 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-25 00:07:50,253 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1560644313] [2023-11-25 00:07:50,254 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-25 00:07:50,254 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1741164220] [2023-11-25 00:07:50,254 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1741164220] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-25 00:07:50,254 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [268488098] [2023-11-25 00:07:50,257 INFO L159 IcfgInterpreter]: Started Sifa with 34 locations of interest [2023-11-25 00:07:50,258 INFO L166 IcfgInterpreter]: Building call graph [2023-11-25 00:07:50,258 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-11-25 00:07:50,258 INFO L176 IcfgInterpreter]: Starting interpretation [2023-11-25 00:07:50,259 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-11-25 00:07:53,165 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 1 for LOIs [2023-11-25 00:07:53,166 INFO L180 IcfgInterpreter]: Interpretation finished [2023-11-25 00:07:57,149 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [268488098] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-25 00:07:57,149 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-25 00:07:57,149 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [6] total 20 [2023-11-25 00:07:57,149 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1594754566] [2023-11-25 00:07:57,150 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-25 00:07:57,150 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-11-25 00:07:57,150 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-25 00:07:57,151 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-11-25 00:07:57,151 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=141, Invalid=410, Unknown=1, NotChecked=0, Total=552 [2023-11-25 00:07:57,151 INFO L87 Difference]: Start difference. First operand 80 states and 91 transitions. Second operand has 16 states, 14 states have (on average 2.0714285714285716) internal successors, (29), 13 states have internal predecessors, (29), 5 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 3 states have call predecessors, (5), 5 states have call successors, (5) [2023-11-25 00:07:58,901 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-25 00:07:58,901 INFO L93 Difference]: Finished difference Result 125 states and 152 transitions. [2023-11-25 00:07:58,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-25 00:07:58,902 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 14 states have (on average 2.0714285714285716) internal successors, (29), 13 states have internal predecessors, (29), 5 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 3 states have call predecessors, (5), 5 states have call successors, (5) Word has length 56 [2023-11-25 00:07:58,903 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-25 00:07:58,903 INFO L225 Difference]: With dead ends: 125 [2023-11-25 00:07:58,904 INFO L226 Difference]: Without dead ends: 0 [2023-11-25 00:07:58,905 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 130 GetRequests, 95 SyntacticMatches, 7 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 315 ImplicationChecksByTransitivity, 5.1s TimeCoverageRelationStatistics Valid=226, Invalid=643, Unknown=1, NotChecked=0, Total=870 [2023-11-25 00:07:58,906 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 110 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 367 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 39 SdHoareTripleChecker+Invalid, 428 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 367 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-11-25 00:07:58,906 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [110 Valid, 39 Invalid, 428 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 367 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-11-25 00:07:58,907 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-11-25 00:07:58,907 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-11-25 00:07:58,907 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-25 00:07:58,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-11-25 00:07:58,908 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 56 [2023-11-25 00:07:58,908 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-25 00:07:58,908 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-25 00:07:58,908 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 14 states have (on average 2.0714285714285716) internal successors, (29), 13 states have internal predecessors, (29), 5 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 3 states have call predecessors, (5), 5 states have call successors, (5) [2023-11-25 00:07:58,908 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-11-25 00:07:58,909 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-25 00:07:58,911 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (23 of 24 remaining) [2023-11-25 00:07:58,912 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (22 of 24 remaining) [2023-11-25 00:07:58,912 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (21 of 24 remaining) [2023-11-25 00:07:58,913 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (20 of 24 remaining) [2023-11-25 00:07:58,913 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 24 remaining) [2023-11-25 00:07:58,913 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 24 remaining) [2023-11-25 00:07:58,913 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 24 remaining) [2023-11-25 00:07:58,914 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 24 remaining) [2023-11-25 00:07:58,914 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 24 remaining) [2023-11-25 00:07:58,914 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 24 remaining) [2023-11-25 00:07:58,914 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 24 remaining) [2023-11-25 00:07:58,914 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 24 remaining) [2023-11-25 00:07:58,915 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 24 remaining) [2023-11-25 00:07:58,915 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 24 remaining) [2023-11-25 00:07:58,915 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 24 remaining) [2023-11-25 00:07:58,915 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 24 remaining) [2023-11-25 00:07:58,916 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 24 remaining) [2023-11-25 00:07:58,916 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 24 remaining) [2023-11-25 00:07:58,916 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 24 remaining) [2023-11-25 00:07:58,916 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 24 remaining) [2023-11-25 00:07:58,916 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 24 remaining) [2023-11-25 00:07:58,917 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 24 remaining) [2023-11-25 00:07:58,917 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 24 remaining) [2023-11-25 00:07:58,917 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 24 remaining) [2023-11-25 00:07:58,928 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eac3b1dc-db90-47c7-923f-1e12edf244a8/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Ended with exit code 0 [2023-11-25 00:07:59,123 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eac3b1dc-db90-47c7-923f-1e12edf244a8/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2023-11-25 00:07:59,125 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-11-25 00:08:01,973 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 40) no Hoare annotation was computed. [2023-11-25 00:08:01,973 INFO L899 garLoopResultBuilder]: For program point L52(lines 52 55) no Hoare annotation was computed. [2023-11-25 00:08:01,973 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW(line 58) no Hoare annotation was computed. [2023-11-25 00:08:01,974 INFO L895 garLoopResultBuilder]: At program point L52-2(lines 44 56) the Hoare annotation is: (let ((.cse1 (<= 1 |#StackHeapBarrier|)) (.cse2 (= |ULTIMATE.start_main_~q~0#1| 0)) (.cse4 (= |ULTIMATE.start_main_~B~0#1| 1))) (or (let ((.cse3 (select |#memory_int| 1)) (.cse0 (select |#memory_int| 2))) (and (= (select .cse0 7) 0) (= (select |#length| 3) 12) .cse1 (= 114 (select .cse0 2)) (= (select .cse0 6) 99) (= 97 (select .cse0 1)) (= 2 (select |#length| 1)) (= (select |#valid| 3) 1) (= 2 |ULTIMATE.start_main_~p~0#1|) (= (select .cse0 4) 50) (= 100 (select .cse0 3)) .cse2 (= (select |#valid| 1) 1) (= |ULTIMATE.start_main_~A~0#1| 1) (= |ULTIMATE.start_main_~r~0#1| 1) (= (select |#valid| 0) 0) (= (select .cse0 5) 46) (= (select |#valid| 2) 1) (= 8 (select |#length| 2)) (= (select .cse3 0) 48) .cse4 (= (select .cse3 1) 0) (= 2 |ULTIMATE.start_main_~d~0#1|) (= (select .cse0 0) 104))) (and .cse1 (or (and (= (+ |ULTIMATE.start_main_~d~0#1| |ULTIMATE.start_main_~r~0#1|) |ULTIMATE.start_main_~A~0#1|) (= |ULTIMATE.start_main_~p~0#1| |ULTIMATE.start_main_~q~0#1|) (<= |ULTIMATE.start_main_~d~0#1| |ULTIMATE.start_main_~A~0#1|) (exists ((|v_ULTIMATE.start_main_~p~0#1_61| Int)) (and (<= |v_ULTIMATE.start_main_~p~0#1_61| 2) (= (div |v_ULTIMATE.start_main_~p~0#1_61| 2) |ULTIMATE.start_main_~d~0#1|) (not (= |v_ULTIMATE.start_main_~p~0#1_61| 1)) (<= 1 |v_ULTIMATE.start_main_~p~0#1_61|)))) (and (<= 0 |ULTIMATE.start_main_~r~0#1|) .cse2 (<= (+ |ULTIMATE.start_main_~r~0#1| 1) |ULTIMATE.start_main_~d~0#1|))) (<= |ULTIMATE.start_main_~A~0#1| 1) (exists ((|v_ULTIMATE.start_main_~p~0#1_63| Int)) (let ((.cse5 (div |v_ULTIMATE.start_main_~p~0#1_63| 2))) (and (<= |v_ULTIMATE.start_main_~p~0#1_63| 2) (= .cse5 |ULTIMATE.start_main_~p~0#1|) (= .cse5 |ULTIMATE.start_main_~d~0#1|)))) .cse4 (<= 0 |ULTIMATE.start_main_~A~0#1|)))) [2023-11-25 00:08:01,974 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW(line 51) no Hoare annotation was computed. [2023-11-25 00:08:01,974 INFO L899 garLoopResultBuilder]: For program point L44-1(lines 44 56) no Hoare annotation was computed. [2023-11-25 00:08:01,975 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW(line 45) no Hoare annotation was computed. [2023-11-25 00:08:01,975 INFO L899 garLoopResultBuilder]: For program point L36(line 36) no Hoare annotation was computed. [2023-11-25 00:08:01,975 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 37) no Hoare annotation was computed. [2023-11-25 00:08:01,975 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW(line 53) no Hoare annotation was computed. [2023-11-25 00:08:01,975 INFO L899 garLoopResultBuilder]: For program point L53(line 53) no Hoare annotation was computed. [2023-11-25 00:08:01,975 INFO L899 garLoopResultBuilder]: For program point L53-1(line 53) no Hoare annotation was computed. [2023-11-25 00:08:01,975 INFO L899 garLoopResultBuilder]: For program point L45(line 45) no Hoare annotation was computed. [2023-11-25 00:08:01,976 INFO L899 garLoopResultBuilder]: For program point L45-1(line 45) no Hoare annotation was computed. [2023-11-25 00:08:01,976 INFO L899 garLoopResultBuilder]: For program point L45-2(line 45) no Hoare annotation was computed. [2023-11-25 00:08:01,976 INFO L899 garLoopResultBuilder]: For program point L45-3(line 45) no Hoare annotation was computed. [2023-11-25 00:08:01,976 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW(line 45) no Hoare annotation was computed. [2023-11-25 00:08:01,977 INFO L895 garLoopResultBuilder]: At program point L45-4(line 45) the Hoare annotation is: (let ((.cse1 (<= 1 |#StackHeapBarrier|)) (.cse2 (= |ULTIMATE.start_main_~q~0#1| 0)) (.cse4 (= |ULTIMATE.start_main_~B~0#1| 1))) (or (let ((.cse3 (select |#memory_int| 1)) (.cse0 (select |#memory_int| 2))) (and (= (select .cse0 7) 0) (= (select |#length| 3) 12) .cse1 (= 114 (select .cse0 2)) (= (select .cse0 6) 99) (= 97 (select .cse0 1)) (= 2 (select |#length| 1)) (= (select |#valid| 3) 1) (= 2 |ULTIMATE.start_main_~p~0#1|) (= (select .cse0 4) 50) (= 100 (select .cse0 3)) .cse2 (= (select |#valid| 1) 1) (= |ULTIMATE.start_main_~A~0#1| 1) (= |ULTIMATE.start_main_~r~0#1| 1) (= (select |#valid| 0) 0) (= (select .cse0 5) 46) (= (select |#valid| 2) 1) (= 8 (select |#length| 2)) (= (select .cse3 0) 48) .cse4 (= (select .cse3 1) 0) (= 2 |ULTIMATE.start_main_~d~0#1|) (= (select .cse0 0) 104))) (and .cse1 (or (and (= (+ |ULTIMATE.start_main_~d~0#1| |ULTIMATE.start_main_~r~0#1|) |ULTIMATE.start_main_~A~0#1|) (= |ULTIMATE.start_main_~p~0#1| |ULTIMATE.start_main_~q~0#1|) (<= |ULTIMATE.start_main_~d~0#1| |ULTIMATE.start_main_~A~0#1|) (exists ((|v_ULTIMATE.start_main_~p~0#1_61| Int)) (and (<= |v_ULTIMATE.start_main_~p~0#1_61| 2) (= (div |v_ULTIMATE.start_main_~p~0#1_61| 2) |ULTIMATE.start_main_~d~0#1|) (not (= |v_ULTIMATE.start_main_~p~0#1_61| 1)) (<= 1 |v_ULTIMATE.start_main_~p~0#1_61|)))) (and (<= 0 |ULTIMATE.start_main_~r~0#1|) .cse2 (<= (+ |ULTIMATE.start_main_~r~0#1| 1) |ULTIMATE.start_main_~d~0#1|))) (<= |ULTIMATE.start_main_~A~0#1| 1) (exists ((|v_ULTIMATE.start_main_~p~0#1_63| Int)) (let ((.cse5 (div |v_ULTIMATE.start_main_~p~0#1_63| 2))) (and (<= |v_ULTIMATE.start_main_~p~0#1_63| 2) (= .cse5 |ULTIMATE.start_main_~p~0#1|) (= .cse5 |ULTIMATE.start_main_~d~0#1|)))) .cse4 (<= 0 |ULTIMATE.start_main_~A~0#1|)))) [2023-11-25 00:08:01,977 INFO L899 garLoopResultBuilder]: For program point L45-5(line 45) no Hoare annotation was computed. [2023-11-25 00:08:01,977 INFO L899 garLoopResultBuilder]: For program point L37(line 37) no Hoare annotation was computed. [2023-11-25 00:08:01,977 INFO L895 garLoopResultBuilder]: At program point L37-1(line 37) the Hoare annotation is: (let ((.cse21 (select |#memory_int| 1)) (.cse20 (select |#memory_int| 2))) (let ((.cse0 (= (select .cse20 7) 0)) (.cse1 (= (select |#length| 3) 12)) (.cse2 (<= 1 |#StackHeapBarrier|)) (.cse3 (= 114 (select .cse20 2))) (.cse4 (= (select .cse20 6) 99)) (.cse5 (= 97 (select .cse20 1))) (.cse6 (= 2 (select |#length| 1))) (.cse7 (= (select |#valid| 3) 1)) (.cse8 (= (select .cse20 4) 50)) (.cse9 (= 100 (select .cse20 3))) (.cse10 (= |ULTIMATE.start_main_~q~0#1| 0)) (.cse11 (= (select |#valid| 1) 1)) (.cse12 (= (select |#valid| 0) 0)) (.cse13 (= (select .cse20 5) 46)) (.cse14 (= (select |#valid| 2) 1)) (.cse15 (= 8 (select |#length| 2))) (.cse16 (= (select .cse21 0) 48)) (.cse17 (= |ULTIMATE.start_main_~B~0#1| 1)) (.cse18 (= (select .cse21 1) 0)) (.cse19 (= (select .cse20 0) 104))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 .cse6 .cse7 (= 2 |ULTIMATE.start_main_~p~0#1|) .cse8 .cse9 .cse10 .cse11 (= |ULTIMATE.start_main_~A~0#1| 1) (= |ULTIMATE.start_main_~r~0#1| 1) .cse12 .cse13 .cse14 .cse15 .cse16 .cse17 .cse18 (= 2 |ULTIMATE.start_main_~d~0#1|) .cse19) (and .cse0 (= |ULTIMATE.start_main_~d~0#1| 1) .cse1 .cse2 (= |ULTIMATE.start_main_~p~0#1| 1) .cse3 .cse4 .cse5 .cse6 .cse7 .cse8 .cse9 (<= |ULTIMATE.start_main_~A~0#1| 1) .cse10 .cse11 (= |ULTIMATE.start_main_~A~0#1| |ULTIMATE.start_main_~r~0#1|) .cse12 .cse13 .cse14 .cse15 .cse16 .cse17 (<= 0 |ULTIMATE.start_main_~A~0#1|) .cse18 .cse19)))) [2023-11-25 00:08:01,978 INFO L899 garLoopResultBuilder]: For program point L37-2(lines 34 42) no Hoare annotation was computed. [2023-11-25 00:08:01,978 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 37) no Hoare annotation was computed. [2023-11-25 00:08:01,978 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW(line 53) no Hoare annotation was computed. [2023-11-25 00:08:01,978 INFO L899 garLoopResultBuilder]: For program point L54(line 54) no Hoare annotation was computed. [2023-11-25 00:08:01,978 INFO L899 garLoopResultBuilder]: For program point L54-1(line 54) no Hoare annotation was computed. [2023-11-25 00:08:01,978 INFO L899 garLoopResultBuilder]: For program point L46(line 46) no Hoare annotation was computed. [2023-11-25 00:08:01,981 INFO L895 garLoopResultBuilder]: At program point L46-1(line 46) the Hoare annotation is: (let ((.cse1 (<= 1 |#StackHeapBarrier|)) (.cse2 (= |ULTIMATE.start_main_~q~0#1| 0)) (.cse4 (= |ULTIMATE.start_main_~B~0#1| 1))) (or (let ((.cse3 (select |#memory_int| 1)) (.cse0 (select |#memory_int| 2))) (and (= (select .cse0 7) 0) (= (select |#length| 3) 12) .cse1 (= 114 (select .cse0 2)) (= (select .cse0 6) 99) (= 97 (select .cse0 1)) (= 2 (select |#length| 1)) (= (select |#valid| 3) 1) (= 2 |ULTIMATE.start_main_~p~0#1|) (= (select .cse0 4) 50) (= 100 (select .cse0 3)) .cse2 (= (select |#valid| 1) 1) (= |ULTIMATE.start_main_~A~0#1| 1) (= |ULTIMATE.start_main_~r~0#1| 1) (= (select |#valid| 0) 0) (= (select .cse0 5) 46) (= (select |#valid| 2) 1) (= 8 (select |#length| 2)) (= (select .cse3 0) 48) .cse4 (= (select .cse3 1) 0) (= 2 |ULTIMATE.start_main_~d~0#1|) (= (select .cse0 0) 104))) (and .cse1 (or (and (= (+ |ULTIMATE.start_main_~d~0#1| |ULTIMATE.start_main_~r~0#1|) |ULTIMATE.start_main_~A~0#1|) (= |ULTIMATE.start_main_~p~0#1| |ULTIMATE.start_main_~q~0#1|) (<= |ULTIMATE.start_main_~d~0#1| |ULTIMATE.start_main_~A~0#1|) (exists ((|v_ULTIMATE.start_main_~p~0#1_61| Int)) (and (<= |v_ULTIMATE.start_main_~p~0#1_61| 2) (= (div |v_ULTIMATE.start_main_~p~0#1_61| 2) |ULTIMATE.start_main_~d~0#1|) (not (= |v_ULTIMATE.start_main_~p~0#1_61| 1)) (<= 1 |v_ULTIMATE.start_main_~p~0#1_61|)))) (and (<= 0 |ULTIMATE.start_main_~r~0#1|) .cse2 (<= (+ |ULTIMATE.start_main_~r~0#1| 1) |ULTIMATE.start_main_~d~0#1|))) (<= |ULTIMATE.start_main_~A~0#1| 1) (exists ((|v_ULTIMATE.start_main_~p~0#1_63| Int)) (let ((.cse5 (div |v_ULTIMATE.start_main_~p~0#1_63| 2))) (and (<= |v_ULTIMATE.start_main_~p~0#1_63| 2) (= .cse5 |ULTIMATE.start_main_~p~0#1|) (= .cse5 |ULTIMATE.start_main_~d~0#1|)))) .cse4 (<= 0 |ULTIMATE.start_main_~A~0#1|)))) [2023-11-25 00:08:01,981 INFO L899 garLoopResultBuilder]: For program point L46-2(lines 44 56) no Hoare annotation was computed. [2023-11-25 00:08:01,981 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW(line 45) no Hoare annotation was computed. [2023-11-25 00:08:01,981 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-11-25 00:08:01,981 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW(line 54) no Hoare annotation was computed. [2023-11-25 00:08:01,981 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW(line 46) no Hoare annotation was computed. [2023-11-25 00:08:01,982 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW(line 54) no Hoare annotation was computed. [2023-11-25 00:08:01,982 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW(line 46) no Hoare annotation was computed. [2023-11-25 00:08:01,982 INFO L899 garLoopResultBuilder]: For program point L40(line 40) no Hoare annotation was computed. [2023-11-25 00:08:01,982 INFO L899 garLoopResultBuilder]: For program point L40-1(line 40) no Hoare annotation was computed. [2023-11-25 00:08:01,982 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW(line 41) no Hoare annotation was computed. [2023-11-25 00:08:01,982 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW(line 58) no Hoare annotation was computed. [2023-11-25 00:08:01,983 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW(line 50) no Hoare annotation was computed. [2023-11-25 00:08:01,983 INFO L899 garLoopResultBuilder]: For program point L41(line 41) no Hoare annotation was computed. [2023-11-25 00:08:01,983 INFO L899 garLoopResultBuilder]: For program point L41-1(line 41) no Hoare annotation was computed. [2023-11-25 00:08:01,983 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-11-25 00:08:01,983 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW(line 41) no Hoare annotation was computed. [2023-11-25 00:08:01,983 INFO L899 garLoopResultBuilder]: For program point L58(line 58) no Hoare annotation was computed. [2023-11-25 00:08:01,984 INFO L899 garLoopResultBuilder]: For program point L58-1(line 58) no Hoare annotation was computed. [2023-11-25 00:08:01,984 INFO L899 garLoopResultBuilder]: For program point L58-2(line 58) no Hoare annotation was computed. [2023-11-25 00:08:01,984 INFO L902 garLoopResultBuilder]: At program point L58-3(line 58) the Hoare annotation is: true [2023-11-25 00:08:01,984 INFO L902 garLoopResultBuilder]: At program point L58-4(line 58) the Hoare annotation is: true [2023-11-25 00:08:01,984 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW(line 58) no Hoare annotation was computed. [2023-11-25 00:08:01,984 INFO L899 garLoopResultBuilder]: For program point L50(line 50) no Hoare annotation was computed. [2023-11-25 00:08:01,984 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW(line 50) no Hoare annotation was computed. [2023-11-25 00:08:01,985 INFO L899 garLoopResultBuilder]: For program point L50-1(line 50) no Hoare annotation was computed. [2023-11-25 00:08:01,985 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW(line 58) no Hoare annotation was computed. [2023-11-25 00:08:01,985 INFO L895 garLoopResultBuilder]: At program point L34-2(lines 34 42) the Hoare annotation is: (let ((.cse21 (select |#memory_int| 1)) (.cse20 (select |#memory_int| 2))) (let ((.cse0 (= (select .cse20 7) 0)) (.cse1 (= (select |#length| 3) 12)) (.cse2 (<= 1 |#StackHeapBarrier|)) (.cse3 (= 114 (select .cse20 2))) (.cse4 (= (select .cse20 6) 99)) (.cse5 (= 97 (select .cse20 1))) (.cse6 (= 2 (select |#length| 1))) (.cse7 (= (select |#valid| 3) 1)) (.cse8 (= (select .cse20 4) 50)) (.cse9 (= 100 (select .cse20 3))) (.cse10 (= |ULTIMATE.start_main_~q~0#1| 0)) (.cse11 (= (select |#valid| 1) 1)) (.cse12 (= (select |#valid| 0) 0)) (.cse13 (= (select .cse20 5) 46)) (.cse14 (= (select |#valid| 2) 1)) (.cse15 (= 8 (select |#length| 2))) (.cse16 (= (select .cse21 0) 48)) (.cse17 (= |ULTIMATE.start_main_~B~0#1| 1)) (.cse18 (= (select .cse21 1) 0)) (.cse19 (= (select .cse20 0) 104))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 .cse6 .cse7 (= 2 |ULTIMATE.start_main_~p~0#1|) .cse8 .cse9 .cse10 .cse11 (= |ULTIMATE.start_main_~A~0#1| 1) (= |ULTIMATE.start_main_~r~0#1| 1) .cse12 .cse13 .cse14 .cse15 .cse16 .cse17 .cse18 (= 2 |ULTIMATE.start_main_~d~0#1|) .cse19) (and .cse0 (= |ULTIMATE.start_main_~d~0#1| 1) .cse1 .cse2 (= |ULTIMATE.start_main_~p~0#1| 1) .cse3 .cse4 .cse5 .cse6 .cse7 .cse8 .cse9 (<= |ULTIMATE.start_main_~A~0#1| 1) .cse10 .cse11 (= |ULTIMATE.start_main_~A~0#1| |ULTIMATE.start_main_~r~0#1|) .cse12 .cse13 .cse14 .cse15 .cse16 .cse17 (<= 0 |ULTIMATE.start_main_~A~0#1|) .cse18 .cse19)))) [2023-11-25 00:08:01,985 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 40) no Hoare annotation was computed. [2023-11-25 00:08:01,986 INFO L899 garLoopResultBuilder]: For program point L59(line 59) no Hoare annotation was computed. [2023-11-25 00:08:01,986 INFO L899 garLoopResultBuilder]: For program point L51(line 51) no Hoare annotation was computed. [2023-11-25 00:08:01,986 INFO L899 garLoopResultBuilder]: For program point L51-1(line 51) no Hoare annotation was computed. [2023-11-25 00:08:01,986 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW(line 51) no Hoare annotation was computed. [2023-11-25 00:08:01,986 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW(line 45) no Hoare annotation was computed. [2023-11-25 00:08:01,987 INFO L895 garLoopResultBuilder]: At program point L35(line 35) the Hoare annotation is: (let ((.cse21 (select |#memory_int| 1)) (.cse20 (select |#memory_int| 2))) (let ((.cse0 (= (select .cse20 7) 0)) (.cse1 (= (select |#length| 3) 12)) (.cse2 (<= 1 |#StackHeapBarrier|)) (.cse3 (= 114 (select .cse20 2))) (.cse4 (= (select .cse20 6) 99)) (.cse5 (= 97 (select .cse20 1))) (.cse6 (= 2 (select |#length| 1))) (.cse7 (= (select |#valid| 3) 1)) (.cse8 (= (select .cse20 4) 50)) (.cse9 (= 100 (select .cse20 3))) (.cse10 (= |ULTIMATE.start_main_~q~0#1| 0)) (.cse11 (= (select |#valid| 1) 1)) (.cse12 (= (select |#valid| 0) 0)) (.cse13 (= (select .cse20 5) 46)) (.cse14 (= (select |#valid| 2) 1)) (.cse15 (= 8 (select |#length| 2))) (.cse16 (= (select .cse21 0) 48)) (.cse17 (= |ULTIMATE.start_main_~B~0#1| 1)) (.cse18 (= (select .cse21 1) 0)) (.cse19 (= (select .cse20 0) 104))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 .cse6 .cse7 (= 2 |ULTIMATE.start_main_~p~0#1|) .cse8 .cse9 .cse10 .cse11 (= |ULTIMATE.start_main_~A~0#1| 1) (= |ULTIMATE.start_main_~r~0#1| 1) .cse12 .cse13 .cse14 .cse15 .cse16 .cse17 .cse18 (= 2 |ULTIMATE.start_main_~d~0#1|) .cse19) (and .cse0 (= |ULTIMATE.start_main_~d~0#1| 1) .cse1 .cse2 (= |ULTIMATE.start_main_~p~0#1| 1) .cse3 .cse4 .cse5 .cse6 .cse7 .cse8 .cse9 (<= |ULTIMATE.start_main_~A~0#1| 1) .cse10 .cse11 (= |ULTIMATE.start_main_~A~0#1| |ULTIMATE.start_main_~r~0#1|) .cse12 .cse13 .cse14 .cse15 .cse16 .cse17 (<= 0 |ULTIMATE.start_main_~A~0#1|) .cse18 .cse19)))) [2023-11-25 00:08:01,987 INFO L895 garLoopResultBuilder]: At program point L35-1(line 35) the Hoare annotation is: (let ((.cse21 (select |#memory_int| 1)) (.cse20 (select |#memory_int| 2))) (let ((.cse0 (= (select .cse20 7) 0)) (.cse1 (= (select |#length| 3) 12)) (.cse2 (<= 1 |#StackHeapBarrier|)) (.cse3 (= 114 (select .cse20 2))) (.cse4 (= (select .cse20 6) 99)) (.cse5 (= 97 (select .cse20 1))) (.cse6 (= 2 (select |#length| 1))) (.cse7 (= (select |#valid| 3) 1)) (.cse8 (= (select .cse20 4) 50)) (.cse9 (= 100 (select .cse20 3))) (.cse10 (= |ULTIMATE.start_main_~q~0#1| 0)) (.cse11 (= (select |#valid| 1) 1)) (.cse12 (= (select |#valid| 0) 0)) (.cse13 (= (select .cse20 5) 46)) (.cse14 (= (select |#valid| 2) 1)) (.cse15 (= 8 (select |#length| 2))) (.cse16 (= (select .cse21 0) 48)) (.cse17 (= |ULTIMATE.start_main_~B~0#1| 1)) (.cse18 (= (select .cse21 1) 0)) (.cse19 (= (select .cse20 0) 104))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 .cse6 .cse7 (= 2 |ULTIMATE.start_main_~p~0#1|) .cse8 .cse9 .cse10 .cse11 (= |ULTIMATE.start_main_~A~0#1| 1) (= |ULTIMATE.start_main_~r~0#1| 1) .cse12 .cse13 .cse14 .cse15 .cse16 .cse17 .cse18 (= 2 |ULTIMATE.start_main_~d~0#1|) .cse19) (and .cse0 (= |ULTIMATE.start_main_~d~0#1| 1) .cse1 .cse2 (= |ULTIMATE.start_main_~p~0#1| 1) .cse3 .cse4 .cse5 .cse6 .cse7 .cse8 .cse9 (<= |ULTIMATE.start_main_~A~0#1| 1) .cse10 .cse11 (= |ULTIMATE.start_main_~A~0#1| |ULTIMATE.start_main_~r~0#1|) .cse12 .cse13 .cse14 .cse15 .cse16 .cse17 (<= 0 |ULTIMATE.start_main_~A~0#1|) .cse18 .cse19)))) [2023-11-25 00:08:01,987 INFO L899 garLoopResultBuilder]: For program point __VERIFIER_assertEXIT(lines 14 20) no Hoare annotation was computed. [2023-11-25 00:08:01,987 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 14 20) the Hoare annotation is: true [2023-11-25 00:08:01,991 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-25 00:08:01,993 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-25 00:08:02,007 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int[2][7] could not be translated [2023-11-25 00:08:02,010 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #length[3] could not be translated [2023-11-25 00:08:02,010 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int[2][2] could not be translated [2023-11-25 00:08:02,010 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int[2][6] could not be translated [2023-11-25 00:08:02,011 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int[2][1] could not be translated [2023-11-25 00:08:02,011 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #length[1] could not be translated [2023-11-25 00:08:02,011 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #valid[3] could not be translated [2023-11-25 00:08:02,012 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int[2][4] could not be translated [2023-11-25 00:08:02,012 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int[2][3] could not be translated [2023-11-25 00:08:02,013 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #valid[1] could not be translated [2023-11-25 00:08:02,013 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #valid[0] could not be translated [2023-11-25 00:08:02,013 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int[2][5] could not be translated [2023-11-25 00:08:02,013 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #valid[2] could not be translated [2023-11-25 00:08:02,014 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #length[2] could not be translated [2023-11-25 00:08:02,014 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int[1][0] could not be translated [2023-11-25 00:08:02,014 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int[1][1] could not be translated [2023-11-25 00:08:02,014 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int[2][0] could not be translated [2023-11-25 00:08:02,015 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: QuantifierExpression (exists v_ULTIMATE.start_main_~p~0#1_61 : int :: ((v_ULTIMATE.start_main_~p~0#1_61 <= 2 && v_ULTIMATE.start_main_~p~0#1_61 / 2 == ~d~0) && !(v_ULTIMATE.start_main_~p~0#1_61 == 1)) && 1 <= v_ULTIMATE.start_main_~p~0#1_61) could not be translated [2023-11-25 00:08:02,015 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: QuantifierExpression (exists v_ULTIMATE.start_main_~p~0#1_63 : int :: (v_ULTIMATE.start_main_~p~0#1_63 <= 2 && v_ULTIMATE.start_main_~p~0#1_63 / 2 == ~p~0) && v_ULTIMATE.start_main_~p~0#1_63 / 2 == ~d~0) could not be translated [2023-11-25 00:08:02,017 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int[2][7] could not be translated [2023-11-25 00:08:02,017 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #length[3] could not be translated [2023-11-25 00:08:02,018 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int[2][2] could not be translated [2023-11-25 00:08:02,018 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int[2][6] could not be translated [2023-11-25 00:08:02,018 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int[2][1] could not be translated [2023-11-25 00:08:02,018 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #length[1] could not be translated [2023-11-25 00:08:02,019 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #valid[3] could not be translated [2023-11-25 00:08:02,019 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int[2][4] could not be translated [2023-11-25 00:08:02,019 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int[2][3] could not be translated [2023-11-25 00:08:02,019 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #valid[1] could not be translated [2023-11-25 00:08:02,020 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #valid[0] could not be translated [2023-11-25 00:08:02,020 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int[2][5] could not be translated [2023-11-25 00:08:02,020 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #valid[2] could not be translated [2023-11-25 00:08:02,020 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #length[2] could not be translated [2023-11-25 00:08:02,020 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int[1][0] could not be translated [2023-11-25 00:08:02,021 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int[1][1] could not be translated [2023-11-25 00:08:02,021 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int[2][0] could not be translated [2023-11-25 00:08:02,021 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int[2][7] could not be translated [2023-11-25 00:08:02,021 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #length[3] could not be translated [2023-11-25 00:08:02,022 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int[2][2] could not be translated [2023-11-25 00:08:02,022 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int[2][6] could not be translated [2023-11-25 00:08:02,022 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int[2][1] could not be translated [2023-11-25 00:08:02,022 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #length[1] could not be translated [2023-11-25 00:08:02,023 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #valid[3] could not be translated [2023-11-25 00:08:02,023 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int[2][4] could not be translated [2023-11-25 00:08:02,023 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int[2][3] could not be translated [2023-11-25 00:08:02,023 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #valid[1] could not be translated [2023-11-25 00:08:02,024 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #valid[0] could not be translated [2023-11-25 00:08:02,024 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int[2][5] could not be translated [2023-11-25 00:08:02,024 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #valid[2] could not be translated [2023-11-25 00:08:02,024 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #length[2] could not be translated [2023-11-25 00:08:02,024 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int[1][0] could not be translated [2023-11-25 00:08:02,025 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int[1][1] could not be translated [2023-11-25 00:08:02,025 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int[2][0] could not be translated [2023-11-25 00:08:02,025 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.11 12:08:02 BoogieIcfgContainer [2023-11-25 00:08:02,025 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-25 00:08:02,026 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-25 00:08:02,026 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-25 00:08:02,026 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-25 00:08:02,027 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 12:07:32" (3/4) ... [2023-11-25 00:08:02,029 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-25 00:08:02,033 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2023-11-25 00:08:02,041 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 23 nodes and edges [2023-11-25 00:08:02,043 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2023-11-25 00:08:02,043 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2023-11-25 00:08:02,043 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-25 00:08:02,044 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-25 00:08:02,155 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eac3b1dc-db90-47c7-923f-1e12edf244a8/bin/utaipan-verify-SwPr7d2a91/witness.graphml [2023-11-25 00:08:02,156 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eac3b1dc-db90-47c7-923f-1e12edf244a8/bin/utaipan-verify-SwPr7d2a91/witness.yml [2023-11-25 00:08:02,156 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-25 00:08:02,157 INFO L158 Benchmark]: Toolchain (without parser) took 30727.51ms. Allocated memory was 157.3MB in the beginning and 583.0MB in the end (delta: 425.7MB). Free memory was 113.9MB in the beginning and 441.0MB in the end (delta: -327.1MB). Peak memory consumption was 101.4MB. Max. memory is 16.1GB. [2023-11-25 00:08:02,157 INFO L158 Benchmark]: CDTParser took 0.28ms. Allocated memory is still 115.3MB. Free memory is still 62.0MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-25 00:08:02,157 INFO L158 Benchmark]: CACSL2BoogieTranslator took 355.61ms. Allocated memory is still 157.3MB. Free memory was 113.9MB in the beginning and 103.1MB in the end (delta: 10.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-25 00:08:02,158 INFO L158 Benchmark]: Boogie Procedure Inliner took 54.08ms. Allocated memory is still 157.3MB. Free memory was 102.7MB in the beginning and 101.3MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-25 00:08:02,158 INFO L158 Benchmark]: Boogie Preprocessor took 28.56ms. Allocated memory is still 157.3MB. Free memory was 101.3MB in the beginning and 99.9MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-25 00:08:02,158 INFO L158 Benchmark]: RCFGBuilder took 652.21ms. Allocated memory is still 157.3MB. Free memory was 99.9MB in the beginning and 82.5MB in the end (delta: 17.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2023-11-25 00:08:02,160 INFO L158 Benchmark]: TraceAbstraction took 29465.18ms. Allocated memory was 157.3MB in the beginning and 583.0MB in the end (delta: 425.7MB). Free memory was 129.0MB in the beginning and 447.3MB in the end (delta: -318.4MB). Peak memory consumption was 348.5MB. Max. memory is 16.1GB. [2023-11-25 00:08:02,160 INFO L158 Benchmark]: Witness Printer took 130.13ms. Allocated memory is still 583.0MB. Free memory was 446.3MB in the beginning and 441.0MB in the end (delta: 5.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2023-11-25 00:08:02,165 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28ms. Allocated memory is still 115.3MB. Free memory is still 62.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 355.61ms. Allocated memory is still 157.3MB. Free memory was 113.9MB in the beginning and 103.1MB in the end (delta: 10.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 54.08ms. Allocated memory is still 157.3MB. Free memory was 102.7MB in the beginning and 101.3MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 28.56ms. Allocated memory is still 157.3MB. Free memory was 101.3MB in the beginning and 99.9MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 652.21ms. Allocated memory is still 157.3MB. Free memory was 99.9MB in the beginning and 82.5MB in the end (delta: 17.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 29465.18ms. Allocated memory was 157.3MB in the beginning and 583.0MB in the end (delta: 425.7MB). Free memory was 129.0MB in the beginning and 447.3MB in the end (delta: -318.4MB). Peak memory consumption was 348.5MB. Max. memory is 16.1GB. * Witness Printer took 130.13ms. Allocated memory is still 583.0MB. Free memory was 446.3MB in the beginning and 441.0MB in the end (delta: 5.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int[2][7] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #length[3] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int[2][2] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int[2][6] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int[2][1] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #length[1] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #valid[3] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int[2][4] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int[2][3] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #valid[1] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #valid[0] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int[2][5] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #valid[2] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #length[2] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int[1][0] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int[1][1] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int[2][0] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: QuantifierExpression (exists v_ULTIMATE.start_main_~p~0#1_61 : int :: ((v_ULTIMATE.start_main_~p~0#1_61 <= 2 && v_ULTIMATE.start_main_~p~0#1_61 / 2 == ~d~0) && !(v_ULTIMATE.start_main_~p~0#1_61 == 1)) && 1 <= v_ULTIMATE.start_main_~p~0#1_61) could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: QuantifierExpression (exists v_ULTIMATE.start_main_~p~0#1_63 : int :: (v_ULTIMATE.start_main_~p~0#1_63 <= 2 && v_ULTIMATE.start_main_~p~0#1_63 / 2 == ~p~0) && v_ULTIMATE.start_main_~p~0#1_63 / 2 == ~d~0) could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int[2][7] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #length[3] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int[2][2] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int[2][6] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int[2][1] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #length[1] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #valid[3] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int[2][4] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int[2][3] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #valid[1] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #valid[0] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int[2][5] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #valid[2] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #length[2] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int[1][0] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int[1][1] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int[2][0] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int[2][7] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #length[3] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int[2][2] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int[2][6] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int[2][1] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #length[1] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #valid[3] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int[2][4] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int[2][3] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #valid[1] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #valid[0] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int[2][5] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #valid[2] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #length[2] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int[1][0] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int[1][1] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int[2][0] could not be translated * 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: 37]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 37]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 40]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 40]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 41]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 41]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 45]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 45]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 45]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 45]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 46]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 46]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 50]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 50]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 51]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 51]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 53]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 53]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 54]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 54]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 58]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 58]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 58]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 58]: 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 2 procedures, 65 locations, 24 error locations. Started 1 CEGAR loops. OverallTime: 29.3s, OverallIterations: 16, TraceHistogramMax: 8, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 4.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 2.8s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 812 SdHoareTripleChecker+Valid, 2.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 765 mSDsluCounter, 1193 SdHoareTripleChecker+Invalid, 2.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 536 mSDsCounter, 146 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1579 IncrementalHoareTripleChecker+Invalid, 1725 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 146 mSolverCounterUnsat, 657 mSDtfsCounter, 1579 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 633 GetRequests, 543 SyntacticMatches, 16 SemanticMatches, 74 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 498 ImplicationChecksByTransitivity, 7.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=144occurred in iteration=5, InterpolantAutomatonStates: 75, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 16 MinimizatonAttempts, 250 StatesRemovedByMinimization, 12 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 10 LocationsWithAnnotation, 46 PreInvPairs, 68 NumberOfFragments, 1629 HoareAnnotationTreeSize, 46 FomulaSimplifications, 7572 FormulaSimplificationTreeSizeReduction, 0.3s HoareSimplificationTime, 10 FomulaSimplificationsInter, 1656 FormulaSimplificationTreeSizeReductionInter, 2.5s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 2.2s InterpolantComputationTime, 436 NumberOfCodeBlocks, 436 NumberOfCodeBlocksAsserted, 17 NumberOfCheckSat, 464 ConstructedInterpolants, 0 QuantifiedInterpolants, 1707 SizeOfPredicates, 6 NumberOfNonLiveVariables, 1611 ConjunctsInSsa, 69 ConjunctsInUnsatCore, 17 InterpolantComputations, 13 PerfectInterpolantSequences, 394/422 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: OVERALL_TIME: 8.7s, ICFG_INTERPRETER_ENTERED_PROCEDURES: 6, DAG_INTERPRETER_EARLY_EXIT_QUERIES_NONTRIVIAL: 127, DAG_INTERPRETER_EARLY_EXITS: 0, TOOLS_POST_APPLICATIONS: 133, TOOLS_POST_TIME: 2.5s, TOOLS_POST_CALL_APPLICATIONS: 83, TOOLS_POST_CALL_TIME: 2.4s, TOOLS_POST_RETURN_APPLICATIONS: 70, TOOLS_POST_RETURN_TIME: 1.8s, TOOLS_QUANTIFIERELIM_APPLICATIONS: 286, TOOLS_QUANTIFIERELIM_TIME: 6.5s, TOOLS_QUANTIFIERELIM_MAX_TIME: 0.1s, FLUID_QUERY_TIME: 0.0s, FLUID_QUERIES: 322, FLUID_YES_ANSWERS: 0, DOMAIN_JOIN_APPLICATIONS: 108, DOMAIN_JOIN_TIME: 1.6s, DOMAIN_ALPHA_APPLICATIONS: 0, DOMAIN_ALPHA_TIME: 0.0s, DOMAIN_WIDEN_APPLICATIONS: 1, DOMAIN_WIDEN_TIME: 0.0s, DOMAIN_ISSUBSETEQ_APPLICATIONS: 5, DOMAIN_ISSUBSETEQ_TIME: 0.0s, DOMAIN_ISBOTTOM_APPLICATIONS: 127, DOMAIN_ISBOTTOM_TIME: 0.2s, LOOP_SUMMARIZER_APPLICATIONS: 4, LOOP_SUMMARIZER_CACHE_MISSES: 4, LOOP_SUMMARIZER_OVERALL_TIME: 3.5s, LOOP_SUMMARIZER_NEW_COMPUTATION_TIME: 3.5s, LOOP_SUMMARIZER_FIXPOINT_ITERATIONS: 5, CALL_SUMMARIZER_APPLICATIONS: 70, CALL_SUMMARIZER_CACHE_MISSES: 3, CALL_SUMMARIZER_OVERALL_TIME: 0.0s, CALL_SUMMARIZER_NEW_COMPUTATION_TIME: 0.0s, PROCEDURE_GRAPH_BUILDER_TIME: 0.0s, PATH_EXPR_TIME: 0.0s, REGEX_TO_DAG_TIME: 0.0s, DAG_COMPRESSION_TIME: 0.1s, DAG_COMPRESSION_PROCESSED_NODES: 4885, DAG_COMPRESSION_RETAINED_NODES: 310, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 24 specifications checked. All of them hold - InvariantResult [Line: 44]: Loop Invariant Derived loop invariant: (((((((2 == p) && (q == 0)) && (A == 1)) && (r == 1)) && (B == 1)) && (2 == d)) || ((((((((d + r) == A) && (p == q)) && (d <= A)) || (((0 <= r) && (q == 0)) && ((r + 1) <= d))) && (A <= 1)) && (B == 1)) && (0 <= A))) - InvariantResult [Line: 34]: Loop Invariant Derived loop invariant: (((((((2 == p) && (q == 0)) && (A == 1)) && (r == 1)) && (B == 1)) && (2 == d)) || (((((((d == 1) && (p == 1)) && (A <= 1)) && (q == 0)) && (A == r)) && (B == 1)) && (0 <= A))) RESULT: Ultimate proved your program to be correct! [2023-11-25 00:08:02,203 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eac3b1dc-db90-47c7-923f-1e12edf244a8/bin/utaipan-verify-SwPr7d2a91/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE