./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/cohencu-ll_unwindbound1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e43b0255-4ad4-4624-866f-8d6911e34ce8/bin/utaipan-verify-SwPr7d2a91/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e43b0255-4ad4-4624-866f-8d6911e34ce8/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_e43b0255-4ad4-4624-866f-8d6911e34ce8/bin/utaipan-verify-SwPr7d2a91/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e43b0255-4ad4-4624-866f-8d6911e34ce8/bin/utaipan-verify-SwPr7d2a91/config/TaipanReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/cohencu-ll_unwindbound1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e43b0255-4ad4-4624-866f-8d6911e34ce8/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_e43b0255-4ad4-4624-866f-8d6911e34ce8/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 6b537bfce1176c41c6bc215444effcd63b1e343cf1b15ee69a282ebedb146c69 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-25 00:02:49,159 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-25 00:02:49,310 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e43b0255-4ad4-4624-866f-8d6911e34ce8/bin/utaipan-verify-SwPr7d2a91/config/svcomp-Overflow-32bit-Taipan_Default.epf [2023-11-25 00:02:49,319 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-25 00:02:49,320 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-25 00:02:49,385 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-25 00:02:49,386 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-25 00:02:49,387 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-25 00:02:49,388 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-25 00:02:49,394 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-25 00:02:49,394 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-25 00:02:49,395 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-25 00:02:49,395 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-25 00:02:49,397 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-25 00:02:49,398 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-25 00:02:49,398 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-25 00:02:49,399 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-25 00:02:49,399 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-25 00:02:49,400 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-25 00:02:49,400 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-25 00:02:49,402 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-25 00:02:49,403 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-25 00:02:49,404 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-25 00:02:49,405 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-25 00:02:49,405 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-25 00:02:49,406 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-25 00:02:49,406 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-25 00:02:49,407 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-25 00:02:49,407 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-25 00:02:49,408 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-25 00:02:49,408 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-25 00:02:49,409 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-25 00:02:49,409 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-25 00:02:49,409 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-25 00:02:49,410 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-25 00:02:49,410 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-25 00:02:49,410 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-25 00:02:49,410 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-25 00:02:49,411 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-25 00:02:49,411 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-25 00:02:49,411 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-25 00:02:49,412 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-25 00:02:49,412 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-25 00:02:49,413 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-25 00:02:49,413 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-25 00:02:49,413 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-25 00:02:49,413 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-25 00:02:49,414 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-25 00:02:49,414 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-25 00:02:49,414 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_e43b0255-4ad4-4624-866f-8d6911e34ce8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e43b0255-4ad4-4624-866f-8d6911e34ce8/bin/utaipan-verify-SwPr7d2a91 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6b537bfce1176c41c6bc215444effcd63b1e343cf1b15ee69a282ebedb146c69 [2023-11-25 00:02:49,782 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-25 00:02:49,837 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-25 00:02:49,840 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-25 00:02:49,841 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-25 00:02:49,842 INFO L274 PluginConnector]: CDTParser initialized [2023-11-25 00:02:49,844 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e43b0255-4ad4-4624-866f-8d6911e34ce8/bin/utaipan-verify-SwPr7d2a91/../../sv-benchmarks/c/nla-digbench-scaling/cohencu-ll_unwindbound1.c [2023-11-25 00:02:53,363 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-25 00:02:53,646 INFO L384 CDTParser]: Found 1 translation units. [2023-11-25 00:02:53,647 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e43b0255-4ad4-4624-866f-8d6911e34ce8/sv-benchmarks/c/nla-digbench-scaling/cohencu-ll_unwindbound1.c [2023-11-25 00:02:53,657 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e43b0255-4ad4-4624-866f-8d6911e34ce8/bin/utaipan-verify-SwPr7d2a91/data/9291c9938/6bf7ea07192d4f8fa8830ffc34b50370/FLAG8177c0203 [2023-11-25 00:02:53,676 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e43b0255-4ad4-4624-866f-8d6911e34ce8/bin/utaipan-verify-SwPr7d2a91/data/9291c9938/6bf7ea07192d4f8fa8830ffc34b50370 [2023-11-25 00:02:53,679 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-25 00:02:53,681 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-25 00:02:53,683 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-25 00:02:53,683 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-25 00:02:53,691 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-25 00:02:53,692 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 12:02:53" (1/1) ... [2023-11-25 00:02:53,693 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@65bd789b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:02:53, skipping insertion in model container [2023-11-25 00:02:53,693 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 12:02:53" (1/1) ... [2023-11-25 00:02:53,721 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-25 00:02:53,979 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-25 00:02:53,990 INFO L202 MainTranslator]: Completed pre-run [2023-11-25 00:02:54,023 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-25 00:02:54,040 INFO L206 MainTranslator]: Completed translation [2023-11-25 00:02:54,040 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:02:54 WrapperNode [2023-11-25 00:02:54,041 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-25 00:02:54,042 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-25 00:02:54,042 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-25 00:02:54,043 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-25 00:02:54,051 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:02:54" (1/1) ... [2023-11-25 00:02:54,061 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:02:54" (1/1) ... [2023-11-25 00:02:54,123 INFO L138 Inliner]: procedures = 14, calls = 19, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 195 [2023-11-25 00:02:54,124 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-25 00:02:54,124 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-25 00:02:54,125 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-25 00:02:54,137 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-25 00:02:54,146 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:02:54" (1/1) ... [2023-11-25 00:02:54,147 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:02:54" (1/1) ... [2023-11-25 00:02:54,149 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:02:54" (1/1) ... [2023-11-25 00:02:54,149 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:02:54" (1/1) ... [2023-11-25 00:02:54,156 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:02:54" (1/1) ... [2023-11-25 00:02:54,159 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:02:54" (1/1) ... [2023-11-25 00:02:54,161 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:02:54" (1/1) ... [2023-11-25 00:02:54,163 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:02:54" (1/1) ... [2023-11-25 00:02:54,166 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-25 00:02:54,167 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-25 00:02:54,167 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-25 00:02:54,167 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-25 00:02:54,168 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:02:54" (1/1) ... [2023-11-25 00:02:54,174 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-25 00:02:54,189 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e43b0255-4ad4-4624-866f-8d6911e34ce8/bin/utaipan-verify-SwPr7d2a91/z3 [2023-11-25 00:02:54,201 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e43b0255-4ad4-4624-866f-8d6911e34ce8/bin/utaipan-verify-SwPr7d2a91/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-25 00:02:54,240 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e43b0255-4ad4-4624-866f-8d6911e34ce8/bin/utaipan-verify-SwPr7d2a91/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-25 00:02:54,251 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-25 00:02:54,251 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-25 00:02:54,252 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-25 00:02:54,252 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-25 00:02:54,252 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-11-25 00:02:54,254 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-11-25 00:02:54,332 INFO L241 CfgBuilder]: Building ICFG [2023-11-25 00:02:54,334 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-25 00:02:55,246 INFO L282 CfgBuilder]: Performing block encoding [2023-11-25 00:02:55,290 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-25 00:02:55,290 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-25 00:02:55,292 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 12:02:55 BoogieIcfgContainer [2023-11-25 00:02:55,292 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-25 00:02:55,295 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-25 00:02:55,296 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-25 00:02:55,299 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-25 00:02:55,300 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 12:02:53" (1/3) ... [2023-11-25 00:02:55,300 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@18319c5f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 12:02:55, skipping insertion in model container [2023-11-25 00:02:55,301 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:02:54" (2/3) ... [2023-11-25 00:02:55,301 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@18319c5f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 12:02:55, skipping insertion in model container [2023-11-25 00:02:55,301 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 12:02:55" (3/3) ... [2023-11-25 00:02:55,303 INFO L112 eAbstractionObserver]: Analyzing ICFG cohencu-ll_unwindbound1.c [2023-11-25 00:02:55,324 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-25 00:02:55,324 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 140 error locations. [2023-11-25 00:02:55,384 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-25 00:02:55,391 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;@f464e82, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-25 00:02:55,392 INFO L358 AbstractCegarLoop]: Starting to check reachability of 140 error locations. [2023-11-25 00:02:55,397 INFO L276 IsEmpty]: Start isEmpty. Operand has 299 states, 146 states have (on average 1.9794520547945205) internal successors, (289), 286 states have internal predecessors, (289), 11 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2023-11-25 00:02:55,403 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2023-11-25 00:02:55,403 INFO L187 NwaCegarLoop]: Found error trace [2023-11-25 00:02:55,404 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2023-11-25 00:02:55,405 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 137 more)] === [2023-11-25 00:02:55,410 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-25 00:02:55,410 INFO L85 PathProgramCache]: Analyzing trace with hash 368288, now seen corresponding path program 1 times [2023-11-25 00:02:55,418 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-25 00:02:55,419 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1846471248] [2023-11-25 00:02:55,419 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-25 00:02:55,420 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-25 00:02:55,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-25 00:02:55,697 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 00:02:55,698 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-25 00:02:55,698 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1846471248] [2023-11-25 00:02:55,699 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1846471248] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-25 00:02:55,700 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-25 00:02:55,700 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-25 00:02:55,702 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1028504443] [2023-11-25 00:02:55,703 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-25 00:02:55,707 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-25 00:02:55,709 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-25 00:02:55,746 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-25 00:02:55,747 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-25 00:02:55,753 INFO L87 Difference]: Start difference. First operand has 299 states, 146 states have (on average 1.9794520547945205) internal successors, (289), 286 states have internal predecessors, (289), 11 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) Second operand has 4 states, 3 states have (on average 1.0) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-25 00:02:55,916 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-25 00:02:55,917 INFO L93 Difference]: Finished difference Result 481 states and 501 transitions. [2023-11-25 00:02:55,918 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-25 00:02:55,919 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.0) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3 [2023-11-25 00:02:55,920 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-25 00:02:55,941 INFO L225 Difference]: With dead ends: 481 [2023-11-25 00:02:55,941 INFO L226 Difference]: Without dead ends: 293 [2023-11-25 00:02:55,945 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-25 00:02:55,951 INFO L413 NwaCegarLoop]: 296 mSDtfsCounter, 4 mSDsluCounter, 590 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 886 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-25 00:02:55,952 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 886 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-25 00:02:55,972 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 293 states. [2023-11-25 00:02:56,024 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 293 to 293. [2023-11-25 00:02:56,028 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 293 states, 149 states have (on average 1.8993288590604027) internal successors, (283), 281 states have internal predecessors, (283), 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 00:02:56,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 293 states to 293 states and 303 transitions. [2023-11-25 00:02:56,040 INFO L78 Accepts]: Start accepts. Automaton has 293 states and 303 transitions. Word has length 3 [2023-11-25 00:02:56,040 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-25 00:02:56,040 INFO L495 AbstractCegarLoop]: Abstraction has 293 states and 303 transitions. [2023-11-25 00:02:56,041 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.0) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-25 00:02:56,041 INFO L276 IsEmpty]: Start isEmpty. Operand 293 states and 303 transitions. [2023-11-25 00:02:56,041 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-11-25 00:02:56,041 INFO L187 NwaCegarLoop]: Found error trace [2023-11-25 00:02:56,042 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2023-11-25 00:02:56,042 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-25 00:02:56,043 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 137 more)] === [2023-11-25 00:02:56,044 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-25 00:02:56,045 INFO L85 PathProgramCache]: Analyzing trace with hash -1913193205, now seen corresponding path program 1 times [2023-11-25 00:02:56,045 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-25 00:02:56,045 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1697439345] [2023-11-25 00:02:56,046 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-25 00:02:56,047 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-25 00:02:56,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-25 00:02:56,141 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 00:02:56,142 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-25 00:02:56,143 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1697439345] [2023-11-25 00:02:56,143 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1697439345] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-25 00:02:56,144 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-25 00:02:56,144 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-25 00:02:56,144 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1434129471] [2023-11-25 00:02:56,145 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-25 00:02:56,146 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-25 00:02:56,147 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-25 00:02:56,147 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-25 00:02:56,148 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-25 00:02:56,148 INFO L87 Difference]: Start difference. First operand 293 states and 303 transitions. Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-25 00:02:56,343 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-25 00:02:56,344 INFO L93 Difference]: Finished difference Result 561 states and 581 transitions. [2023-11-25 00:02:56,345 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-25 00:02:56,345 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2023-11-25 00:02:56,346 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-25 00:02:56,350 INFO L225 Difference]: With dead ends: 561 [2023-11-25 00:02:56,350 INFO L226 Difference]: Without dead ends: 541 [2023-11-25 00:02:56,355 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-25 00:02:56,356 INFO L413 NwaCegarLoop]: 352 mSDtfsCounter, 237 mSDsluCounter, 252 mSDsCounter, 0 mSdLazyCounter, 75 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 247 SdHoareTripleChecker+Valid, 604 SdHoareTripleChecker+Invalid, 94 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 75 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-25 00:02:56,357 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [247 Valid, 604 Invalid, 94 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 75 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-25 00:02:56,359 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 541 states. [2023-11-25 00:02:56,395 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 541 to 351. [2023-11-25 00:02:56,400 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 351 states, 202 states have (on average 1.801980198019802) internal successors, (364), 334 states have internal predecessors, (364), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2023-11-25 00:02:56,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 351 states to 351 states and 394 transitions. [2023-11-25 00:02:56,403 INFO L78 Accepts]: Start accepts. Automaton has 351 states and 394 transitions. Word has length 6 [2023-11-25 00:02:56,405 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-25 00:02:56,405 INFO L495 AbstractCegarLoop]: Abstraction has 351 states and 394 transitions. [2023-11-25 00:02:56,407 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-25 00:02:56,407 INFO L276 IsEmpty]: Start isEmpty. Operand 351 states and 394 transitions. [2023-11-25 00:02:56,409 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2023-11-25 00:02:56,409 INFO L187 NwaCegarLoop]: Found error trace [2023-11-25 00:02:56,409 INFO L195 NwaCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 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 00:02:56,409 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-25 00:02:56,410 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 137 more)] === [2023-11-25 00:02:56,410 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-25 00:02:56,410 INFO L85 PathProgramCache]: Analyzing trace with hash -1165381364, now seen corresponding path program 1 times [2023-11-25 00:02:56,411 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-25 00:02:56,411 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [542911148] [2023-11-25 00:02:56,411 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-25 00:02:56,412 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-25 00:02:56,455 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-25 00:02:56,456 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1090716096] [2023-11-25 00:02:56,456 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-25 00:02:56,456 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-25 00:02:56,456 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e43b0255-4ad4-4624-866f-8d6911e34ce8/bin/utaipan-verify-SwPr7d2a91/z3 [2023-11-25 00:02:56,461 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e43b0255-4ad4-4624-866f-8d6911e34ce8/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-25 00:02:56,476 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e43b0255-4ad4-4624-866f-8d6911e34ce8/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-25 00:02:56,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-25 00:02:56,550 INFO L262 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-25 00:02:56,556 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-25 00:02:56,887 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 00:02:56,887 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-25 00:02:56,888 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-25 00:02:56,889 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [542911148] [2023-11-25 00:02:56,889 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-25 00:02:56,889 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1090716096] [2023-11-25 00:02:56,889 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1090716096] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-25 00:02:56,890 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-25 00:02:56,891 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-25 00:02:56,897 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [121760337] [2023-11-25 00:02:56,898 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-25 00:02:56,900 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-25 00:02:56,901 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-25 00:02:56,903 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-25 00:02:56,903 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-25 00:02:56,903 INFO L87 Difference]: Start difference. First operand 351 states and 394 transitions. Second operand has 3 states, 2 states have (on average 12.5) internal successors, (25), 3 states have internal predecessors, (25), 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 00:02:58,135 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-25 00:02:58,135 INFO L93 Difference]: Finished difference Result 549 states and 569 transitions. [2023-11-25 00:02:58,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-25 00:02:58,137 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 12.5) internal successors, (25), 3 states have internal predecessors, (25), 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 33 [2023-11-25 00:02:58,137 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-25 00:02:58,140 INFO L225 Difference]: With dead ends: 549 [2023-11-25 00:02:58,141 INFO L226 Difference]: Without dead ends: 519 [2023-11-25 00:02:58,141 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 31 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 00:02:58,142 INFO L413 NwaCegarLoop]: 167 mSDtfsCounter, 197 mSDsluCounter, 105 mSDsCounter, 0 mSdLazyCounter, 353 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 204 SdHoareTripleChecker+Valid, 272 SdHoareTripleChecker+Invalid, 382 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 353 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-11-25 00:02:58,143 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [204 Valid, 272 Invalid, 382 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 353 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-11-25 00:02:58,145 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 519 states. [2023-11-25 00:02:58,168 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 519 to 434. [2023-11-25 00:02:58,169 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 434 states, 280 states have (on average 1.7428571428571429) internal successors, (488), 412 states have internal predecessors, (488), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2023-11-25 00:02:58,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 434 states to 434 states and 528 transitions. [2023-11-25 00:02:58,173 INFO L78 Accepts]: Start accepts. Automaton has 434 states and 528 transitions. Word has length 33 [2023-11-25 00:02:58,173 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-25 00:02:58,173 INFO L495 AbstractCegarLoop]: Abstraction has 434 states and 528 transitions. [2023-11-25 00:02:58,174 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 12.5) internal successors, (25), 3 states have internal predecessors, (25), 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 00:02:58,174 INFO L276 IsEmpty]: Start isEmpty. Operand 434 states and 528 transitions. [2023-11-25 00:02:58,175 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2023-11-25 00:02:58,175 INFO L187 NwaCegarLoop]: Found error trace [2023-11-25 00:02:58,175 INFO L195 NwaCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 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 00:02:58,188 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e43b0255-4ad4-4624-866f-8d6911e34ce8/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-25 00:02:58,382 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e43b0255-4ad4-4624-866f-8d6911e34ce8/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-25 00:02:58,382 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 137 more)] === [2023-11-25 00:02:58,383 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-25 00:02:58,383 INFO L85 PathProgramCache]: Analyzing trace with hash -1767083827, now seen corresponding path program 1 times [2023-11-25 00:02:58,383 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-25 00:02:58,383 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1098484125] [2023-11-25 00:02:58,384 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-25 00:02:58,384 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-25 00:02:58,418 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-25 00:02:58,418 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [638641603] [2023-11-25 00:02:58,418 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-25 00:02:58,421 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-25 00:02:58,422 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e43b0255-4ad4-4624-866f-8d6911e34ce8/bin/utaipan-verify-SwPr7d2a91/z3 [2023-11-25 00:02:58,423 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e43b0255-4ad4-4624-866f-8d6911e34ce8/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-25 00:02:58,440 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e43b0255-4ad4-4624-866f-8d6911e34ce8/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-25 00:02:58,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-25 00:02:58,477 INFO L262 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-25 00:02:58,479 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-25 00:02:58,628 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 00:02:58,629 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-25 00:02:58,629 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-25 00:02:58,629 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1098484125] [2023-11-25 00:02:58,629 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-25 00:02:58,629 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [638641603] [2023-11-25 00:02:58,630 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [638641603] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-25 00:02:58,630 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-25 00:02:58,630 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-25 00:02:58,630 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1492659329] [2023-11-25 00:02:58,630 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-25 00:02:58,631 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-25 00:02:58,631 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-25 00:02:58,631 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-25 00:02:58,631 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-25 00:02:58,632 INFO L87 Difference]: Start difference. First operand 434 states and 528 transitions. Second operand has 3 states, 2 states have (on average 13.0) internal successors, (26), 3 states have internal predecessors, (26), 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 00:02:59,377 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-25 00:02:59,377 INFO L93 Difference]: Finished difference Result 519 states and 539 transitions. [2023-11-25 00:02:59,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-25 00:02:59,378 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 13.0) internal successors, (26), 3 states have internal predecessors, (26), 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 34 [2023-11-25 00:02:59,378 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-25 00:02:59,381 INFO L225 Difference]: With dead ends: 519 [2023-11-25 00:02:59,382 INFO L226 Difference]: Without dead ends: 510 [2023-11-25 00:02:59,382 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 00:02:59,383 INFO L413 NwaCegarLoop]: 222 mSDtfsCounter, 187 mSDsluCounter, 107 mSDsCounter, 0 mSdLazyCounter, 344 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 194 SdHoareTripleChecker+Valid, 329 SdHoareTripleChecker+Invalid, 352 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 344 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-11-25 00:02:59,384 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [194 Valid, 329 Invalid, 352 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 344 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-11-25 00:02:59,385 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 510 states. [2023-11-25 00:02:59,399 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 510 to 436. [2023-11-25 00:02:59,400 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 436 states, 282 states have (on average 1.7127659574468086) internal successors, (483), 414 states have internal predecessors, (483), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2023-11-25 00:02:59,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 436 states to 436 states and 523 transitions. [2023-11-25 00:02:59,404 INFO L78 Accepts]: Start accepts. Automaton has 436 states and 523 transitions. Word has length 34 [2023-11-25 00:02:59,404 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-25 00:02:59,405 INFO L495 AbstractCegarLoop]: Abstraction has 436 states and 523 transitions. [2023-11-25 00:02:59,405 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 13.0) internal successors, (26), 3 states have internal predecessors, (26), 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 00:02:59,405 INFO L276 IsEmpty]: Start isEmpty. Operand 436 states and 523 transitions. [2023-11-25 00:02:59,406 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2023-11-25 00:02:59,406 INFO L187 NwaCegarLoop]: Found error trace [2023-11-25 00:02:59,407 INFO L195 NwaCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:02:59,417 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e43b0255-4ad4-4624-866f-8d6911e34ce8/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2023-11-25 00:02:59,612 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e43b0255-4ad4-4624-866f-8d6911e34ce8/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-25 00:02:59,612 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 137 more)] === [2023-11-25 00:02:59,613 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-25 00:02:59,613 INFO L85 PathProgramCache]: Analyzing trace with hash 1054976302, now seen corresponding path program 1 times [2023-11-25 00:02:59,613 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-25 00:02:59,613 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [332840328] [2023-11-25 00:02:59,613 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-25 00:02:59,613 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-25 00:02:59,631 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-25 00:02:59,631 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1934459811] [2023-11-25 00:02:59,631 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-25 00:02:59,631 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-25 00:02:59,640 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e43b0255-4ad4-4624-866f-8d6911e34ce8/bin/utaipan-verify-SwPr7d2a91/z3 [2023-11-25 00:02:59,642 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e43b0255-4ad4-4624-866f-8d6911e34ce8/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-25 00:02:59,650 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e43b0255-4ad4-4624-866f-8d6911e34ce8/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-25 00:02:59,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-25 00:02:59,716 INFO L262 TraceCheckSpWp]: Trace formula consists of 85 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-25 00:02:59,718 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-25 00:02:59,778 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 00:02:59,779 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-25 00:02:59,779 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-25 00:02:59,779 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [332840328] [2023-11-25 00:02:59,779 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-25 00:02:59,779 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1934459811] [2023-11-25 00:02:59,780 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1934459811] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-25 00:02:59,780 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-25 00:02:59,780 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-25 00:02:59,780 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1164954974] [2023-11-25 00:02:59,781 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-25 00:02:59,781 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-25 00:02:59,782 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-25 00:02:59,782 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-25 00:02:59,783 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-25 00:02:59,783 INFO L87 Difference]: Start difference. First operand 436 states and 523 transitions. Second operand has 3 states, 2 states have (on average 13.5) internal successors, (27), 3 states have internal predecessors, (27), 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 00:03:00,607 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-25 00:03:00,608 INFO L93 Difference]: Finished difference Result 505 states and 530 transitions. [2023-11-25 00:03:00,608 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-25 00:03:00,608 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 13.5) internal successors, (27), 3 states have internal predecessors, (27), 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 35 [2023-11-25 00:03:00,609 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-25 00:03:00,612 INFO L225 Difference]: With dead ends: 505 [2023-11-25 00:03:00,612 INFO L226 Difference]: Without dead ends: 500 [2023-11-25 00:03:00,612 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 00:03:00,613 INFO L413 NwaCegarLoop]: 290 mSDtfsCounter, 176 mSDsluCounter, 204 mSDsCounter, 0 mSdLazyCounter, 183 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 183 SdHoareTripleChecker+Valid, 494 SdHoareTripleChecker+Invalid, 192 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 183 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-11-25 00:03:00,614 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [183 Valid, 494 Invalid, 192 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 183 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-11-25 00:03:00,615 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 500 states. [2023-11-25 00:03:00,627 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 500 to 436. [2023-11-25 00:03:00,628 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 436 states, 282 states have (on average 1.6950354609929077) internal successors, (478), 414 states have internal predecessors, (478), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2023-11-25 00:03:00,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 436 states to 436 states and 518 transitions. [2023-11-25 00:03:00,632 INFO L78 Accepts]: Start accepts. Automaton has 436 states and 518 transitions. Word has length 35 [2023-11-25 00:03:00,632 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-25 00:03:00,632 INFO L495 AbstractCegarLoop]: Abstraction has 436 states and 518 transitions. [2023-11-25 00:03:00,632 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 13.5) internal successors, (27), 3 states have internal predecessors, (27), 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 00:03:00,632 INFO L276 IsEmpty]: Start isEmpty. Operand 436 states and 518 transitions. [2023-11-25 00:03:00,634 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2023-11-25 00:03:00,634 INFO L187 NwaCegarLoop]: Found error trace [2023-11-25 00:03:00,634 INFO L195 NwaCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:03:00,648 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e43b0255-4ad4-4624-866f-8d6911e34ce8/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-11-25 00:03:00,839 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e43b0255-4ad4-4624-866f-8d6911e34ce8/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-25 00:03:00,840 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 137 more)] === [2023-11-25 00:03:00,840 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-25 00:03:00,840 INFO L85 PathProgramCache]: Analyzing trace with hash -1655472913, now seen corresponding path program 1 times [2023-11-25 00:03:00,841 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-25 00:03:00,841 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1328331023] [2023-11-25 00:03:00,841 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-25 00:03:00,841 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-25 00:03:00,852 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-25 00:03:00,853 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1109814223] [2023-11-25 00:03:00,853 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-25 00:03:00,853 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-25 00:03:00,853 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e43b0255-4ad4-4624-866f-8d6911e34ce8/bin/utaipan-verify-SwPr7d2a91/z3 [2023-11-25 00:03:00,854 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e43b0255-4ad4-4624-866f-8d6911e34ce8/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-25 00:03:00,861 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e43b0255-4ad4-4624-866f-8d6911e34ce8/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-25 00:03:00,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-25 00:03:00,907 INFO L262 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-25 00:03:00,908 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-25 00:03:00,956 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 00:03:00,956 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-25 00:03:00,956 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-25 00:03:00,956 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1328331023] [2023-11-25 00:03:00,956 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-25 00:03:00,956 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1109814223] [2023-11-25 00:03:00,956 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1109814223] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-25 00:03:00,957 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-25 00:03:00,957 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-25 00:03:00,957 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1535469868] [2023-11-25 00:03:00,957 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-25 00:03:00,957 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-25 00:03:00,958 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-25 00:03:00,958 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-25 00:03:00,958 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-25 00:03:00,958 INFO L87 Difference]: Start difference. First operand 436 states and 518 transitions. Second operand has 3 states, 2 states have (on average 14.0) internal successors, (28), 3 states have internal predecessors, (28), 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 00:03:01,765 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-25 00:03:01,765 INFO L93 Difference]: Finished difference Result 505 states and 525 transitions. [2023-11-25 00:03:01,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-25 00:03:01,766 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 14.0) internal successors, (28), 3 states have internal predecessors, (28), 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 36 [2023-11-25 00:03:01,766 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-25 00:03:01,769 INFO L225 Difference]: With dead ends: 505 [2023-11-25 00:03:01,769 INFO L226 Difference]: Without dead ends: 500 [2023-11-25 00:03:01,770 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 34 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 00:03:01,771 INFO L413 NwaCegarLoop]: 346 mSDtfsCounter, 173 mSDsluCounter, 206 mSDsCounter, 0 mSdLazyCounter, 178 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 180 SdHoareTripleChecker+Valid, 552 SdHoareTripleChecker+Invalid, 187 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 178 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-11-25 00:03:01,771 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [180 Valid, 552 Invalid, 187 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 178 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-11-25 00:03:01,775 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 500 states. [2023-11-25 00:03:01,789 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 500 to 436. [2023-11-25 00:03:01,790 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 436 states, 282 states have (on average 1.677304964539007) internal successors, (473), 414 states have internal predecessors, (473), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2023-11-25 00:03:01,793 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 436 states to 436 states and 513 transitions. [2023-11-25 00:03:01,793 INFO L78 Accepts]: Start accepts. Automaton has 436 states and 513 transitions. Word has length 36 [2023-11-25 00:03:01,794 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-25 00:03:01,794 INFO L495 AbstractCegarLoop]: Abstraction has 436 states and 513 transitions. [2023-11-25 00:03:01,795 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 14.0) internal successors, (28), 3 states have internal predecessors, (28), 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 00:03:01,795 INFO L276 IsEmpty]: Start isEmpty. Operand 436 states and 513 transitions. [2023-11-25 00:03:01,796 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2023-11-25 00:03:01,797 INFO L187 NwaCegarLoop]: Found error trace [2023-11-25 00:03:01,797 INFO L195 NwaCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:03:01,806 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e43b0255-4ad4-4624-866f-8d6911e34ce8/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2023-11-25 00:03:02,002 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e43b0255-4ad4-4624-866f-8d6911e34ce8/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2023-11-25 00:03:02,002 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 137 more)] === [2023-11-25 00:03:02,003 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-25 00:03:02,003 INFO L85 PathProgramCache]: Analyzing trace with hash 219947344, now seen corresponding path program 1 times [2023-11-25 00:03:02,003 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-25 00:03:02,003 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [333662957] [2023-11-25 00:03:02,003 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-25 00:03:02,003 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-25 00:03:02,017 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-25 00:03:02,017 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1197592268] [2023-11-25 00:03:02,017 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-25 00:03:02,017 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-25 00:03:02,017 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e43b0255-4ad4-4624-866f-8d6911e34ce8/bin/utaipan-verify-SwPr7d2a91/z3 [2023-11-25 00:03:02,018 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e43b0255-4ad4-4624-866f-8d6911e34ce8/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-25 00:03:02,046 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e43b0255-4ad4-4624-866f-8d6911e34ce8/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-11-25 00:03:02,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-25 00:03:02,081 INFO L262 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-25 00:03:02,083 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-25 00:03:02,147 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 00:03:02,147 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-25 00:03:02,148 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-25 00:03:02,148 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [333662957] [2023-11-25 00:03:02,148 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-25 00:03:02,148 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1197592268] [2023-11-25 00:03:02,148 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1197592268] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-25 00:03:02,149 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-25 00:03:02,149 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-25 00:03:02,149 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1099937290] [2023-11-25 00:03:02,149 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-25 00:03:02,150 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-25 00:03:02,150 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-25 00:03:02,150 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-25 00:03:02,151 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-25 00:03:02,151 INFO L87 Difference]: Start difference. First operand 436 states and 513 transitions. Second operand has 4 states, 3 states have (on average 9.666666666666666) internal successors, (29), 4 states have internal predecessors, (29), 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 00:03:03,227 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-25 00:03:03,227 INFO L93 Difference]: Finished difference Result 500 states and 520 transitions. [2023-11-25 00:03:03,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-25 00:03:03,227 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 9.666666666666666) internal successors, (29), 4 states have internal predecessors, (29), 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 37 [2023-11-25 00:03:03,228 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-25 00:03:03,230 INFO L225 Difference]: With dead ends: 500 [2023-11-25 00:03:03,231 INFO L226 Difference]: Without dead ends: 498 [2023-11-25 00:03:03,231 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 34 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 00:03:03,232 INFO L413 NwaCegarLoop]: 217 mSDtfsCounter, 362 mSDsluCounter, 204 mSDsCounter, 0 mSdLazyCounter, 257 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 372 SdHoareTripleChecker+Valid, 421 SdHoareTripleChecker+Invalid, 271 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 257 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-11-25 00:03:03,233 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [372 Valid, 421 Invalid, 271 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 257 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-11-25 00:03:03,234 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 498 states. [2023-11-25 00:03:03,248 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 498 to 436. [2023-11-25 00:03:03,249 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 436 states, 282 states have (on average 1.6702127659574468) internal successors, (471), 414 states have internal predecessors, (471), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2023-11-25 00:03:03,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 436 states to 436 states and 511 transitions. [2023-11-25 00:03:03,255 INFO L78 Accepts]: Start accepts. Automaton has 436 states and 511 transitions. Word has length 37 [2023-11-25 00:03:03,255 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-25 00:03:03,256 INFO L495 AbstractCegarLoop]: Abstraction has 436 states and 511 transitions. [2023-11-25 00:03:03,256 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 9.666666666666666) internal successors, (29), 4 states have internal predecessors, (29), 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 00:03:03,256 INFO L276 IsEmpty]: Start isEmpty. Operand 436 states and 511 transitions. [2023-11-25 00:03:03,258 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2023-11-25 00:03:03,258 INFO L187 NwaCegarLoop]: Found error trace [2023-11-25 00:03:03,259 INFO L195 NwaCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:03:03,268 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e43b0255-4ad4-4624-866f-8d6911e34ce8/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-11-25 00:03:03,464 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e43b0255-4ad4-4624-866f-8d6911e34ce8/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2023-11-25 00:03:03,464 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 137 more)] === [2023-11-25 00:03:03,465 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-25 00:03:03,465 INFO L85 PathProgramCache]: Analyzing trace with hash -1771566831, now seen corresponding path program 1 times [2023-11-25 00:03:03,465 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-25 00:03:03,465 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [462011806] [2023-11-25 00:03:03,465 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-25 00:03:03,465 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-25 00:03:03,483 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-25 00:03:03,483 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [303728783] [2023-11-25 00:03:03,492 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-25 00:03:03,493 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-25 00:03:03,493 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e43b0255-4ad4-4624-866f-8d6911e34ce8/bin/utaipan-verify-SwPr7d2a91/z3 [2023-11-25 00:03:03,494 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e43b0255-4ad4-4624-866f-8d6911e34ce8/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-25 00:03:03,499 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e43b0255-4ad4-4624-866f-8d6911e34ce8/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-11-25 00:03:03,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-25 00:03:03,540 INFO L262 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-25 00:03:03,542 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-25 00:03:03,613 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 00:03:03,613 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-25 00:03:03,614 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-25 00:03:03,614 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [462011806] [2023-11-25 00:03:03,614 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-25 00:03:03,614 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [303728783] [2023-11-25 00:03:03,614 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [303728783] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-25 00:03:03,614 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-25 00:03:03,614 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-25 00:03:03,615 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [382409846] [2023-11-25 00:03:03,615 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-25 00:03:03,615 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-25 00:03:03,615 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-25 00:03:03,616 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-25 00:03:03,616 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-25 00:03:03,616 INFO L87 Difference]: Start difference. First operand 436 states and 511 transitions. Second operand has 4 states, 3 states have (on average 10.0) internal successors, (30), 4 states have internal predecessors, (30), 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 00:03:05,721 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.22s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-25 00:03:05,965 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-25 00:03:05,965 INFO L93 Difference]: Finished difference Result 498 states and 518 transitions. [2023-11-25 00:03:05,966 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-25 00:03:05,966 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 10.0) internal successors, (30), 4 states have internal predecessors, (30), 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 38 [2023-11-25 00:03:05,966 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-25 00:03:05,969 INFO L225 Difference]: With dead ends: 498 [2023-11-25 00:03:05,969 INFO L226 Difference]: Without dead ends: 496 [2023-11-25 00:03:05,969 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 35 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 00:03:05,970 INFO L413 NwaCegarLoop]: 170 mSDtfsCounter, 357 mSDsluCounter, 203 mSDsCounter, 0 mSdLazyCounter, 255 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 367 SdHoareTripleChecker+Valid, 373 SdHoareTripleChecker+Invalid, 269 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 255 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2023-11-25 00:03:05,970 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [367 Valid, 373 Invalid, 269 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 255 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2023-11-25 00:03:05,974 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 496 states. [2023-11-25 00:03:05,989 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 496 to 436. [2023-11-25 00:03:05,990 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 436 states, 282 states have (on average 1.6631205673758864) internal successors, (469), 414 states have internal predecessors, (469), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2023-11-25 00:03:05,992 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 436 states to 436 states and 509 transitions. [2023-11-25 00:03:05,992 INFO L78 Accepts]: Start accepts. Automaton has 436 states and 509 transitions. Word has length 38 [2023-11-25 00:03:05,995 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-25 00:03:05,995 INFO L495 AbstractCegarLoop]: Abstraction has 436 states and 509 transitions. [2023-11-25 00:03:05,995 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 10.0) internal successors, (30), 4 states have internal predecessors, (30), 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 00:03:05,995 INFO L276 IsEmpty]: Start isEmpty. Operand 436 states and 509 transitions. [2023-11-25 00:03:06,002 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2023-11-25 00:03:06,002 INFO L187 NwaCegarLoop]: Found error trace [2023-11-25 00:03:06,002 INFO L195 NwaCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:03:06,013 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e43b0255-4ad4-4624-866f-8d6911e34ce8/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-11-25 00:03:06,213 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e43b0255-4ad4-4624-866f-8d6911e34ce8/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2023-11-25 00:03:06,213 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 137 more)] === [2023-11-25 00:03:06,214 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-25 00:03:06,214 INFO L85 PathProgramCache]: Analyzing trace with hash -189230700, now seen corresponding path program 1 times [2023-11-25 00:03:06,214 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-25 00:03:06,214 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [228234913] [2023-11-25 00:03:06,214 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-25 00:03:06,214 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-25 00:03:06,245 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-25 00:03:06,245 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [315682571] [2023-11-25 00:03:06,245 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-25 00:03:06,245 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-25 00:03:06,246 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e43b0255-4ad4-4624-866f-8d6911e34ce8/bin/utaipan-verify-SwPr7d2a91/z3 [2023-11-25 00:03:06,248 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e43b0255-4ad4-4624-866f-8d6911e34ce8/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-25 00:03:06,254 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e43b0255-4ad4-4624-866f-8d6911e34ce8/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-11-25 00:03:06,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-25 00:03:06,303 INFO L262 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-25 00:03:06,305 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-25 00:03:06,570 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 00:03:06,571 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-25 00:03:06,571 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-25 00:03:06,571 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [228234913] [2023-11-25 00:03:06,571 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-25 00:03:06,571 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [315682571] [2023-11-25 00:03:06,571 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [315682571] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-25 00:03:06,572 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-25 00:03:06,572 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-25 00:03:06,572 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1453742909] [2023-11-25 00:03:06,572 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-25 00:03:06,572 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-25 00:03:06,573 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-25 00:03:06,573 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-25 00:03:06,573 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-25 00:03:06,573 INFO L87 Difference]: Start difference. First operand 436 states and 509 transitions. Second operand has 3 states, 2 states have (on average 16.5) internal successors, (33), 3 states have internal predecessors, (33), 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 00:03:07,231 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-25 00:03:07,231 INFO L93 Difference]: Finished difference Result 496 states and 516 transitions. [2023-11-25 00:03:07,232 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-25 00:03:07,232 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 16.5) internal successors, (33), 3 states have internal predecessors, (33), 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 41 [2023-11-25 00:03:07,232 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-25 00:03:07,235 INFO L225 Difference]: With dead ends: 496 [2023-11-25 00:03:07,235 INFO L226 Difference]: Without dead ends: 482 [2023-11-25 00:03:07,235 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 39 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 00:03:07,236 INFO L413 NwaCegarLoop]: 154 mSDtfsCounter, 150 mSDsluCounter, 81 mSDsCounter, 0 mSdLazyCounter, 362 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 157 SdHoareTripleChecker+Valid, 235 SdHoareTripleChecker+Invalid, 375 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 362 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-11-25 00:03:07,236 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [157 Valid, 235 Invalid, 375 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 362 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-11-25 00:03:07,238 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 482 states. [2023-11-25 00:03:07,251 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 482 to 439. [2023-11-25 00:03:07,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 439 states, 285 states have (on average 1.6175438596491227) internal successors, (461), 417 states have internal predecessors, (461), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2023-11-25 00:03:07,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 439 states to 439 states and 501 transitions. [2023-11-25 00:03:07,255 INFO L78 Accepts]: Start accepts. Automaton has 439 states and 501 transitions. Word has length 41 [2023-11-25 00:03:07,255 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-25 00:03:07,255 INFO L495 AbstractCegarLoop]: Abstraction has 439 states and 501 transitions. [2023-11-25 00:03:07,255 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 16.5) internal successors, (33), 3 states have internal predecessors, (33), 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 00:03:07,256 INFO L276 IsEmpty]: Start isEmpty. Operand 439 states and 501 transitions. [2023-11-25 00:03:07,256 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2023-11-25 00:03:07,256 INFO L187 NwaCegarLoop]: Found error trace [2023-11-25 00:03:07,257 INFO L195 NwaCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:03:07,266 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e43b0255-4ad4-4624-866f-8d6911e34ce8/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2023-11-25 00:03:07,462 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e43b0255-4ad4-4624-866f-8d6911e34ce8/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-25 00:03:07,462 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 137 more)] === [2023-11-25 00:03:07,463 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-25 00:03:07,463 INFO L85 PathProgramCache]: Analyzing trace with hash -1571184299, now seen corresponding path program 1 times [2023-11-25 00:03:07,463 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-25 00:03:07,463 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [749708803] [2023-11-25 00:03:07,463 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-25 00:03:07,463 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-25 00:03:07,484 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-25 00:03:07,488 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1789988326] [2023-11-25 00:03:07,488 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-25 00:03:07,489 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-25 00:03:07,489 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e43b0255-4ad4-4624-866f-8d6911e34ce8/bin/utaipan-verify-SwPr7d2a91/z3 [2023-11-25 00:03:07,490 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e43b0255-4ad4-4624-866f-8d6911e34ce8/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-25 00:03:07,494 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e43b0255-4ad4-4624-866f-8d6911e34ce8/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-11-25 00:03:07,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-25 00:03:07,543 INFO L262 TraceCheckSpWp]: Trace formula consists of 92 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-25 00:03:07,548 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-25 00:03:08,277 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 00:03:08,277 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-25 00:03:08,278 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-25 00:03:08,278 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [749708803] [2023-11-25 00:03:08,278 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-25 00:03:08,278 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1789988326] [2023-11-25 00:03:08,278 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1789988326] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-25 00:03:08,278 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-25 00:03:08,278 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-25 00:03:08,278 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1106722058] [2023-11-25 00:03:08,279 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-25 00:03:08,279 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-25 00:03:08,279 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-25 00:03:08,279 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-25 00:03:08,280 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-25 00:03:08,280 INFO L87 Difference]: Start difference. First operand 439 states and 501 transitions. Second operand has 4 states, 3 states have (on average 11.333333333333334) internal successors, (34), 4 states have internal predecessors, (34), 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 00:03:10,037 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-25 00:03:10,037 INFO L93 Difference]: Finished difference Result 482 states and 502 transitions. [2023-11-25 00:03:10,038 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-25 00:03:10,039 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 11.333333333333334) internal successors, (34), 4 states have internal predecessors, (34), 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 42 [2023-11-25 00:03:10,039 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-25 00:03:10,042 INFO L225 Difference]: With dead ends: 482 [2023-11-25 00:03:10,042 INFO L226 Difference]: Without dead ends: 479 [2023-11-25 00:03:10,042 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-25 00:03:10,043 INFO L413 NwaCegarLoop]: 276 mSDtfsCounter, 170 mSDsluCounter, 212 mSDsCounter, 0 mSdLazyCounter, 536 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 180 SdHoareTripleChecker+Valid, 488 SdHoareTripleChecker+Invalid, 540 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 536 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2023-11-25 00:03:10,043 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [180 Valid, 488 Invalid, 540 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 536 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2023-11-25 00:03:10,044 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 479 states. [2023-11-25 00:03:10,057 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 479 to 439. [2023-11-25 00:03:10,058 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 439 states, 285 states have (on average 1.6070175438596492) internal successors, (458), 417 states have internal predecessors, (458), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2023-11-25 00:03:10,060 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 439 states to 439 states and 498 transitions. [2023-11-25 00:03:10,060 INFO L78 Accepts]: Start accepts. Automaton has 439 states and 498 transitions. Word has length 42 [2023-11-25 00:03:10,061 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-25 00:03:10,061 INFO L495 AbstractCegarLoop]: Abstraction has 439 states and 498 transitions. [2023-11-25 00:03:10,061 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 11.333333333333334) internal successors, (34), 4 states have internal predecessors, (34), 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 00:03:10,061 INFO L276 IsEmpty]: Start isEmpty. Operand 439 states and 498 transitions. [2023-11-25 00:03:10,062 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2023-11-25 00:03:10,062 INFO L187 NwaCegarLoop]: Found error trace [2023-11-25 00:03:10,062 INFO L195 NwaCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:03:10,073 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e43b0255-4ad4-4624-866f-8d6911e34ce8/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2023-11-25 00:03:10,273 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e43b0255-4ad4-4624-866f-8d6911e34ce8/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-25 00:03:10,273 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 137 more)] === [2023-11-25 00:03:10,274 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-25 00:03:10,274 INFO L85 PathProgramCache]: Analyzing trace with hash -1350485607, now seen corresponding path program 1 times [2023-11-25 00:03:10,274 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-25 00:03:10,274 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [515045870] [2023-11-25 00:03:10,274 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-25 00:03:10,274 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-25 00:03:10,283 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-25 00:03:10,284 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [628588857] [2023-11-25 00:03:10,284 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-25 00:03:10,284 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-25 00:03:10,284 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e43b0255-4ad4-4624-866f-8d6911e34ce8/bin/utaipan-verify-SwPr7d2a91/z3 [2023-11-25 00:03:10,285 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e43b0255-4ad4-4624-866f-8d6911e34ce8/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-25 00:03:10,292 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e43b0255-4ad4-4624-866f-8d6911e34ce8/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-11-25 00:03:10,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-25 00:03:10,342 INFO L262 TraceCheckSpWp]: Trace formula consists of 96 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-25 00:03:10,346 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-25 00:03:10,616 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 00:03:10,616 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-25 00:03:10,617 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-25 00:03:10,617 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [515045870] [2023-11-25 00:03:10,617 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-25 00:03:10,617 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [628588857] [2023-11-25 00:03:10,617 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [628588857] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-25 00:03:10,617 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-25 00:03:10,618 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-25 00:03:10,618 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1759228155] [2023-11-25 00:03:10,618 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-25 00:03:10,619 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-25 00:03:10,619 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-25 00:03:10,620 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-25 00:03:10,620 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-25 00:03:10,620 INFO L87 Difference]: Start difference. First operand 439 states and 498 transitions. Second operand has 4 states, 3 states have (on average 12.666666666666666) internal successors, (38), 4 states have internal predecessors, (38), 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 00:03:11,671 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-25 00:03:11,671 INFO L93 Difference]: Finished difference Result 479 states and 499 transitions. [2023-11-25 00:03:11,671 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-25 00:03:11,671 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 12.666666666666666) internal successors, (38), 4 states have internal predecessors, (38), 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 46 [2023-11-25 00:03:11,672 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-25 00:03:11,674 INFO L225 Difference]: With dead ends: 479 [2023-11-25 00:03:11,675 INFO L226 Difference]: Without dead ends: 458 [2023-11-25 00:03:11,675 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 43 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 00:03:11,676 INFO L413 NwaCegarLoop]: 262 mSDtfsCounter, 301 mSDsluCounter, 85 mSDsCounter, 0 mSdLazyCounter, 357 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 311 SdHoareTripleChecker+Valid, 347 SdHoareTripleChecker+Invalid, 370 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 357 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-11-25 00:03:11,677 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [311 Valid, 347 Invalid, 370 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 357 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-11-25 00:03:11,678 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 458 states. [2023-11-25 00:03:11,690 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 458 to 423. [2023-11-25 00:03:11,691 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 423 states, 270 states have (on average 1.625925925925926) internal successors, (439), 402 states have internal predecessors, (439), 19 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2023-11-25 00:03:11,693 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 423 states to 423 states and 477 transitions. [2023-11-25 00:03:11,693 INFO L78 Accepts]: Start accepts. Automaton has 423 states and 477 transitions. Word has length 46 [2023-11-25 00:03:11,693 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-25 00:03:11,694 INFO L495 AbstractCegarLoop]: Abstraction has 423 states and 477 transitions. [2023-11-25 00:03:11,694 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 12.666666666666666) internal successors, (38), 4 states have internal predecessors, (38), 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 00:03:11,694 INFO L276 IsEmpty]: Start isEmpty. Operand 423 states and 477 transitions. [2023-11-25 00:03:11,695 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2023-11-25 00:03:11,695 INFO L187 NwaCegarLoop]: Found error trace [2023-11-25 00:03:11,695 INFO L195 NwaCegarLoop]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:03:11,709 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e43b0255-4ad4-4624-866f-8d6911e34ce8/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2023-11-25 00:03:11,900 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e43b0255-4ad4-4624-866f-8d6911e34ce8/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2023-11-25 00:03:11,900 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr37ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 137 more)] === [2023-11-25 00:03:11,901 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-25 00:03:11,901 INFO L85 PathProgramCache]: Analyzing trace with hash -440215715, now seen corresponding path program 1 times [2023-11-25 00:03:11,901 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-25 00:03:11,901 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [983889117] [2023-11-25 00:03:11,901 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-25 00:03:11,901 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-25 00:03:11,911 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-25 00:03:11,911 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1724894598] [2023-11-25 00:03:11,912 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-25 00:03:11,912 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-25 00:03:11,912 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e43b0255-4ad4-4624-866f-8d6911e34ce8/bin/utaipan-verify-SwPr7d2a91/z3 [2023-11-25 00:03:11,913 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e43b0255-4ad4-4624-866f-8d6911e34ce8/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-25 00:03:11,917 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e43b0255-4ad4-4624-866f-8d6911e34ce8/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2023-11-25 00:03:11,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-25 00:03:11,965 INFO L262 TraceCheckSpWp]: Trace formula consists of 108 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-25 00:03:11,967 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-25 00:03:12,036 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-25 00:03:12,036 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-25 00:03:12,037 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-25 00:03:12,037 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [983889117] [2023-11-25 00:03:12,037 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-25 00:03:12,037 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1724894598] [2023-11-25 00:03:12,037 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1724894598] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-25 00:03:12,037 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-25 00:03:12,038 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-25 00:03:12,038 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [740646864] [2023-11-25 00:03:12,038 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-25 00:03:12,039 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-25 00:03:12,039 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-25 00:03:12,039 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-25 00:03:12,039 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-25 00:03:12,040 INFO L87 Difference]: Start difference. First operand 423 states and 477 transitions. Second operand has 3 states, 2 states have (on average 21.0) internal successors, (42), 3 states have internal predecessors, (42), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2023-11-25 00:03:13,688 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-25 00:03:13,688 INFO L93 Difference]: Finished difference Result 462 states and 481 transitions. [2023-11-25 00:03:13,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-25 00:03:13,689 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 21.0) internal successors, (42), 3 states have internal predecessors, (42), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 53 [2023-11-25 00:03:13,689 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-25 00:03:13,691 INFO L225 Difference]: With dead ends: 462 [2023-11-25 00:03:13,692 INFO L226 Difference]: Without dead ends: 456 [2023-11-25 00:03:13,692 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 51 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 00:03:13,693 INFO L413 NwaCegarLoop]: 288 mSDtfsCounter, 118 mSDsluCounter, 143 mSDsCounter, 0 mSdLazyCounter, 252 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 123 SdHoareTripleChecker+Valid, 431 SdHoareTripleChecker+Invalid, 257 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 252 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2023-11-25 00:03:13,693 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [123 Valid, 431 Invalid, 257 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 252 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2023-11-25 00:03:13,694 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 456 states. [2023-11-25 00:03:13,706 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 456 to 425. [2023-11-25 00:03:13,707 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 425 states, 272 states have (on average 1.6066176470588236) internal successors, (437), 404 states have internal predecessors, (437), 19 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2023-11-25 00:03:13,709 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 425 states to 425 states and 475 transitions. [2023-11-25 00:03:13,709 INFO L78 Accepts]: Start accepts. Automaton has 425 states and 475 transitions. Word has length 53 [2023-11-25 00:03:13,709 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-25 00:03:13,710 INFO L495 AbstractCegarLoop]: Abstraction has 425 states and 475 transitions. [2023-11-25 00:03:13,710 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 21.0) internal successors, (42), 3 states have internal predecessors, (42), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2023-11-25 00:03:13,710 INFO L276 IsEmpty]: Start isEmpty. Operand 425 states and 475 transitions. [2023-11-25 00:03:13,711 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2023-11-25 00:03:13,711 INFO L187 NwaCegarLoop]: Found error trace [2023-11-25 00:03:13,711 INFO L195 NwaCegarLoop]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:03:13,716 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e43b0255-4ad4-4624-866f-8d6911e34ce8/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2023-11-25 00:03:13,916 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e43b0255-4ad4-4624-866f-8d6911e34ce8/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-25 00:03:13,917 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr41ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 137 more)] === [2023-11-25 00:03:13,917 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-25 00:03:13,917 INFO L85 PathProgramCache]: Analyzing trace with hash 265824225, now seen corresponding path program 1 times [2023-11-25 00:03:13,917 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-25 00:03:13,918 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [565775210] [2023-11-25 00:03:13,918 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-25 00:03:13,918 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-25 00:03:13,943 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-25 00:03:13,943 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1523222562] [2023-11-25 00:03:13,943 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-25 00:03:13,943 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-25 00:03:13,943 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e43b0255-4ad4-4624-866f-8d6911e34ce8/bin/utaipan-verify-SwPr7d2a91/z3 [2023-11-25 00:03:13,944 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e43b0255-4ad4-4624-866f-8d6911e34ce8/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-25 00:03:13,968 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e43b0255-4ad4-4624-866f-8d6911e34ce8/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2023-11-25 00:03:14,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-25 00:03:14,003 INFO L262 TraceCheckSpWp]: Trace formula consists of 112 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-25 00:03:14,004 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-25 00:03:14,084 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-25 00:03:14,085 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-25 00:03:14,085 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-25 00:03:14,085 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [565775210] [2023-11-25 00:03:14,085 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-25 00:03:14,085 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1523222562] [2023-11-25 00:03:14,085 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1523222562] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-25 00:03:14,086 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-25 00:03:14,086 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-25 00:03:14,086 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [822998013] [2023-11-25 00:03:14,086 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-25 00:03:14,087 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-25 00:03:14,088 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-25 00:03:14,089 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-25 00:03:14,089 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-25 00:03:14,089 INFO L87 Difference]: Start difference. First operand 425 states and 475 transitions. Second operand has 4 states, 3 states have (on average 15.333333333333334) internal successors, (46), 4 states have internal predecessors, (46), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2023-11-25 00:03:14,625 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-25 00:03:14,625 INFO L93 Difference]: Finished difference Result 456 states and 475 transitions. [2023-11-25 00:03:14,626 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-25 00:03:14,626 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 15.333333333333334) internal successors, (46), 4 states have internal predecessors, (46), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 57 [2023-11-25 00:03:14,626 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-25 00:03:14,629 INFO L225 Difference]: With dead ends: 456 [2023-11-25 00:03:14,629 INFO L226 Difference]: Without dead ends: 454 [2023-11-25 00:03:14,629 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 54 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 00:03:14,630 INFO L413 NwaCegarLoop]: 225 mSDtfsCounter, 149 mSDsluCounter, 270 mSDsCounter, 0 mSdLazyCounter, 421 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 158 SdHoareTripleChecker+Valid, 495 SdHoareTripleChecker+Invalid, 436 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 421 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-25 00:03:14,630 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [158 Valid, 495 Invalid, 436 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 421 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-25 00:03:14,631 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 454 states. [2023-11-25 00:03:14,644 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 454 to 425. [2023-11-25 00:03:14,645 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 425 states, 272 states have (on average 1.599264705882353) internal successors, (435), 404 states have internal predecessors, (435), 19 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2023-11-25 00:03:14,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 425 states to 425 states and 473 transitions. [2023-11-25 00:03:14,647 INFO L78 Accepts]: Start accepts. Automaton has 425 states and 473 transitions. Word has length 57 [2023-11-25 00:03:14,647 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-25 00:03:14,647 INFO L495 AbstractCegarLoop]: Abstraction has 425 states and 473 transitions. [2023-11-25 00:03:14,647 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 15.333333333333334) internal successors, (46), 4 states have internal predecessors, (46), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2023-11-25 00:03:14,648 INFO L276 IsEmpty]: Start isEmpty. Operand 425 states and 473 transitions. [2023-11-25 00:03:14,648 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2023-11-25 00:03:14,648 INFO L187 NwaCegarLoop]: Found error trace [2023-11-25 00:03:14,648 INFO L195 NwaCegarLoop]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:03:14,658 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e43b0255-4ad4-4624-866f-8d6911e34ce8/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2023-11-25 00:03:14,853 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e43b0255-4ad4-4624-866f-8d6911e34ce8/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2023-11-25 00:03:14,854 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr45ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 137 more)] === [2023-11-25 00:03:14,854 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-25 00:03:14,854 INFO L85 PathProgramCache]: Analyzing trace with hash -1777510299, now seen corresponding path program 1 times [2023-11-25 00:03:14,855 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-25 00:03:14,855 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1536318930] [2023-11-25 00:03:14,855 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-25 00:03:14,856 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-25 00:03:14,872 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-25 00:03:14,873 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [327829803] [2023-11-25 00:03:14,873 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-25 00:03:14,873 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-25 00:03:14,873 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e43b0255-4ad4-4624-866f-8d6911e34ce8/bin/utaipan-verify-SwPr7d2a91/z3 [2023-11-25 00:03:14,874 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e43b0255-4ad4-4624-866f-8d6911e34ce8/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-25 00:03:14,879 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e43b0255-4ad4-4624-866f-8d6911e34ce8/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2023-11-25 00:03:14,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-25 00:03:14,934 INFO L262 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-25 00:03:14,936 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-25 00:03:15,149 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-25 00:03:15,149 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-25 00:03:15,149 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-25 00:03:15,150 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1536318930] [2023-11-25 00:03:15,150 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-25 00:03:15,150 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [327829803] [2023-11-25 00:03:15,150 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [327829803] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-25 00:03:15,150 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-25 00:03:15,150 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-25 00:03:15,153 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1682202131] [2023-11-25 00:03:15,153 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-25 00:03:15,155 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-25 00:03:15,155 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-25 00:03:15,156 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-25 00:03:15,156 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-25 00:03:15,156 INFO L87 Difference]: Start difference. First operand 425 states and 473 transitions. Second operand has 4 states, 3 states have (on average 16.666666666666668) internal successors, (50), 4 states have internal predecessors, (50), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2023-11-25 00:03:19,209 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-25 00:03:22,302 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-25 00:03:22,302 INFO L93 Difference]: Finished difference Result 538 states and 595 transitions. [2023-11-25 00:03:22,303 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-25 00:03:22,303 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 16.666666666666668) internal successors, (50), 4 states have internal predecessors, (50), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 61 [2023-11-25 00:03:22,303 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-25 00:03:22,306 INFO L225 Difference]: With dead ends: 538 [2023-11-25 00:03:22,306 INFO L226 Difference]: Without dead ends: 495 [2023-11-25 00:03:22,307 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 58 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 00:03:22,307 INFO L413 NwaCegarLoop]: 133 mSDtfsCounter, 439 mSDsluCounter, 87 mSDsCounter, 0 mSdLazyCounter, 329 mSolverCounterSat, 38 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 453 SdHoareTripleChecker+Valid, 220 SdHoareTripleChecker+Invalid, 368 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 329 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.1s IncrementalHoareTripleChecker+Time [2023-11-25 00:03:22,308 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [453 Valid, 220 Invalid, 368 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 329 Invalid, 1 Unknown, 0 Unchecked, 7.1s Time] [2023-11-25 00:03:22,309 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 495 states. [2023-11-25 00:03:22,322 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 495 to 445. [2023-11-25 00:03:22,324 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 445 states, 316 states have (on average 1.5696202531645569) internal successors, (496), 421 states have internal predecessors, (496), 22 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) [2023-11-25 00:03:22,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 445 states to 445 states and 540 transitions. [2023-11-25 00:03:22,326 INFO L78 Accepts]: Start accepts. Automaton has 445 states and 540 transitions. Word has length 61 [2023-11-25 00:03:22,327 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-25 00:03:22,327 INFO L495 AbstractCegarLoop]: Abstraction has 445 states and 540 transitions. [2023-11-25 00:03:22,327 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 16.666666666666668) internal successors, (50), 4 states have internal predecessors, (50), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2023-11-25 00:03:22,327 INFO L276 IsEmpty]: Start isEmpty. Operand 445 states and 540 transitions. [2023-11-25 00:03:22,328 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2023-11-25 00:03:22,328 INFO L187 NwaCegarLoop]: Found error trace [2023-11-25 00:03:22,328 INFO L195 NwaCegarLoop]: trace histogram [6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:03:22,339 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e43b0255-4ad4-4624-866f-8d6911e34ce8/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2023-11-25 00:03:22,534 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e43b0255-4ad4-4624-866f-8d6911e34ce8/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2023-11-25 00:03:22,534 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr60ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 137 more)] === [2023-11-25 00:03:22,534 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-25 00:03:22,534 INFO L85 PathProgramCache]: Analyzing trace with hash 576130743, now seen corresponding path program 1 times [2023-11-25 00:03:22,535 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-25 00:03:22,535 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [752091214] [2023-11-25 00:03:22,535 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-25 00:03:22,535 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-25 00:03:22,545 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-25 00:03:22,546 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1164179970] [2023-11-25 00:03:22,546 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-25 00:03:22,546 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-25 00:03:22,546 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e43b0255-4ad4-4624-866f-8d6911e34ce8/bin/utaipan-verify-SwPr7d2a91/z3 [2023-11-25 00:03:22,548 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e43b0255-4ad4-4624-866f-8d6911e34ce8/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-25 00:03:22,549 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e43b0255-4ad4-4624-866f-8d6911e34ce8/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2023-11-25 00:03:22,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-25 00:03:22,605 INFO L262 TraceCheckSpWp]: Trace formula consists of 140 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-25 00:03:22,607 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-25 00:03:22,795 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-11-25 00:03:22,795 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-25 00:03:22,795 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-25 00:03:22,796 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [752091214] [2023-11-25 00:03:22,796 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-25 00:03:22,796 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1164179970] [2023-11-25 00:03:22,796 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1164179970] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-25 00:03:22,796 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-25 00:03:22,797 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-25 00:03:22,797 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [661459371] [2023-11-25 00:03:22,798 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-25 00:03:22,798 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-25 00:03:22,798 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-25 00:03:22,799 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-25 00:03:22,799 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-25 00:03:22,799 INFO L87 Difference]: Start difference. First operand 445 states and 540 transitions. Second operand has 3 states, 2 states have (on average 29.0) internal successors, (58), 3 states have internal predecessors, (58), 1 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2023-11-25 00:03:23,000 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-25 00:03:23,000 INFO L93 Difference]: Finished difference Result 445 states and 540 transitions. [2023-11-25 00:03:23,000 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-25 00:03:23,001 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 29.0) internal successors, (58), 3 states have internal predecessors, (58), 1 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) Word has length 75 [2023-11-25 00:03:23,001 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-25 00:03:23,006 INFO L225 Difference]: With dead ends: 445 [2023-11-25 00:03:23,007 INFO L226 Difference]: Without dead ends: 443 [2023-11-25 00:03:23,009 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 73 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 00:03:23,010 INFO L413 NwaCegarLoop]: 228 mSDtfsCounter, 193 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 197 SdHoareTripleChecker+Valid, 238 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-25 00:03:23,010 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [197 Valid, 238 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-25 00:03:23,011 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 443 states. [2023-11-25 00:03:23,029 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 443 to 443. [2023-11-25 00:03:23,030 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 443 states, 316 states have (on average 1.5506329113924051) internal successors, (490), 419 states have internal predecessors, (490), 22 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) [2023-11-25 00:03:23,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 443 states to 443 states and 534 transitions. [2023-11-25 00:03:23,033 INFO L78 Accepts]: Start accepts. Automaton has 443 states and 534 transitions. Word has length 75 [2023-11-25 00:03:23,034 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-25 00:03:23,034 INFO L495 AbstractCegarLoop]: Abstraction has 443 states and 534 transitions. [2023-11-25 00:03:23,035 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 29.0) internal successors, (58), 3 states have internal predecessors, (58), 1 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2023-11-25 00:03:23,035 INFO L276 IsEmpty]: Start isEmpty. Operand 443 states and 534 transitions. [2023-11-25 00:03:23,041 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2023-11-25 00:03:23,041 INFO L187 NwaCegarLoop]: Found error trace [2023-11-25 00:03:23,041 INFO L195 NwaCegarLoop]: trace histogram [6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:03:23,052 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e43b0255-4ad4-4624-866f-8d6911e34ce8/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2023-11-25 00:03:23,247 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e43b0255-4ad4-4624-866f-8d6911e34ce8/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2023-11-25 00:03:23,247 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr61ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 137 more)] === [2023-11-25 00:03:23,247 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-25 00:03:23,247 INFO L85 PathProgramCache]: Analyzing trace with hash 680184029, now seen corresponding path program 1 times [2023-11-25 00:03:23,248 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-25 00:03:23,248 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [856633942] [2023-11-25 00:03:23,248 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-25 00:03:23,248 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-25 00:03:23,260 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-25 00:03:23,260 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1888863992] [2023-11-25 00:03:23,260 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-25 00:03:23,261 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-25 00:03:23,261 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e43b0255-4ad4-4624-866f-8d6911e34ce8/bin/utaipan-verify-SwPr7d2a91/z3 [2023-11-25 00:03:23,262 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e43b0255-4ad4-4624-866f-8d6911e34ce8/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-25 00:03:23,291 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e43b0255-4ad4-4624-866f-8d6911e34ce8/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2023-11-25 00:03:23,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-25 00:03:23,328 INFO L262 TraceCheckSpWp]: Trace formula consists of 141 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-25 00:03:23,330 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-25 00:03:23,427 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-11-25 00:03:23,427 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-25 00:03:23,427 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-25 00:03:23,427 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [856633942] [2023-11-25 00:03:23,428 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-25 00:03:23,428 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1888863992] [2023-11-25 00:03:23,428 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1888863992] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-25 00:03:23,428 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-25 00:03:23,428 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-25 00:03:23,428 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1908856896] [2023-11-25 00:03:23,429 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-25 00:03:23,429 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-25 00:03:23,429 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-25 00:03:23,430 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-25 00:03:23,430 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-25 00:03:23,430 INFO L87 Difference]: Start difference. First operand 443 states and 534 transitions. Second operand has 4 states, 3 states have (on average 19.666666666666668) internal successors, (59), 4 states have internal predecessors, (59), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2023-11-25 00:03:23,910 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-25 00:03:23,910 INFO L93 Difference]: Finished difference Result 466 states and 534 transitions. [2023-11-25 00:03:23,910 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-25 00:03:23,910 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 19.666666666666668) internal successors, (59), 4 states have internal predecessors, (59), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 76 [2023-11-25 00:03:23,911 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-25 00:03:23,913 INFO L225 Difference]: With dead ends: 466 [2023-11-25 00:03:23,913 INFO L226 Difference]: Without dead ends: 464 [2023-11-25 00:03:23,914 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 73 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-25 00:03:23,914 INFO L413 NwaCegarLoop]: 285 mSDtfsCounter, 150 mSDsluCounter, 434 mSDsCounter, 0 mSdLazyCounter, 163 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 150 SdHoareTripleChecker+Valid, 719 SdHoareTripleChecker+Invalid, 177 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 163 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-25 00:03:23,915 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [150 Valid, 719 Invalid, 177 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 163 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-25 00:03:23,916 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 464 states. [2023-11-25 00:03:23,930 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 464 to 443. [2023-11-25 00:03:23,931 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 443 states, 316 states have (on average 1.5443037974683544) internal successors, (488), 419 states have internal predecessors, (488), 22 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) [2023-11-25 00:03:23,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 443 states to 443 states and 532 transitions. [2023-11-25 00:03:23,934 INFO L78 Accepts]: Start accepts. Automaton has 443 states and 532 transitions. Word has length 76 [2023-11-25 00:03:23,934 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-25 00:03:23,935 INFO L495 AbstractCegarLoop]: Abstraction has 443 states and 532 transitions. [2023-11-25 00:03:23,935 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 19.666666666666668) internal successors, (59), 4 states have internal predecessors, (59), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2023-11-25 00:03:23,935 INFO L276 IsEmpty]: Start isEmpty. Operand 443 states and 532 transitions. [2023-11-25 00:03:23,936 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2023-11-25 00:03:23,936 INFO L187 NwaCegarLoop]: Found error trace [2023-11-25 00:03:23,936 INFO L195 NwaCegarLoop]: trace histogram [6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:03:23,948 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e43b0255-4ad4-4624-866f-8d6911e34ce8/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2023-11-25 00:03:24,141 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e43b0255-4ad4-4624-866f-8d6911e34ce8/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2023-11-25 00:03:24,141 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr62ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 137 more)] === [2023-11-25 00:03:24,142 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-25 00:03:24,142 INFO L85 PathProgramCache]: Analyzing trace with hash -389131399, now seen corresponding path program 1 times [2023-11-25 00:03:24,142 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-25 00:03:24,142 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1552032227] [2023-11-25 00:03:24,142 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-25 00:03:24,142 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-25 00:03:24,152 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-25 00:03:24,152 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1864676081] [2023-11-25 00:03:24,153 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-25 00:03:24,153 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-25 00:03:24,153 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e43b0255-4ad4-4624-866f-8d6911e34ce8/bin/utaipan-verify-SwPr7d2a91/z3 [2023-11-25 00:03:24,156 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e43b0255-4ad4-4624-866f-8d6911e34ce8/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-25 00:03:24,182 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e43b0255-4ad4-4624-866f-8d6911e34ce8/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2023-11-25 00:03:24,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-25 00:03:24,218 INFO L262 TraceCheckSpWp]: Trace formula consists of 142 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-25 00:03:24,219 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-25 00:03:24,306 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-11-25 00:03:24,306 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-25 00:03:24,306 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-25 00:03:24,306 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1552032227] [2023-11-25 00:03:24,307 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-25 00:03:24,307 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1864676081] [2023-11-25 00:03:24,307 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1864676081] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-25 00:03:24,307 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-25 00:03:24,307 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-25 00:03:24,307 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [960711554] [2023-11-25 00:03:24,308 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-25 00:03:24,308 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-25 00:03:24,308 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-25 00:03:24,309 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-25 00:03:24,309 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-25 00:03:24,309 INFO L87 Difference]: Start difference. First operand 443 states and 532 transitions. Second operand has 3 states, 2 states have (on average 30.0) internal successors, (60), 3 states have internal predecessors, (60), 1 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2023-11-25 00:03:24,792 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-25 00:03:24,792 INFO L93 Difference]: Finished difference Result 464 states and 532 transitions. [2023-11-25 00:03:24,792 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-25 00:03:24,793 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 30.0) internal successors, (60), 3 states have internal predecessors, (60), 1 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) Word has length 77 [2023-11-25 00:03:24,793 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-25 00:03:24,795 INFO L225 Difference]: With dead ends: 464 [2023-11-25 00:03:24,795 INFO L226 Difference]: Without dead ends: 456 [2023-11-25 00:03:24,796 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 75 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 00:03:24,796 INFO L413 NwaCegarLoop]: 295 mSDtfsCounter, 66 mSDsluCounter, 175 mSDsCounter, 0 mSdLazyCounter, 140 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 68 SdHoareTripleChecker+Valid, 470 SdHoareTripleChecker+Invalid, 147 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 140 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-25 00:03:24,797 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [68 Valid, 470 Invalid, 147 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 140 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-25 00:03:24,798 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 456 states. [2023-11-25 00:03:24,812 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 456 to 443. [2023-11-25 00:03:24,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 443 states, 316 states have (on average 1.518987341772152) internal successors, (480), 419 states have internal predecessors, (480), 22 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) [2023-11-25 00:03:24,815 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 443 states to 443 states and 524 transitions. [2023-11-25 00:03:24,815 INFO L78 Accepts]: Start accepts. Automaton has 443 states and 524 transitions. Word has length 77 [2023-11-25 00:03:24,816 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-25 00:03:24,816 INFO L495 AbstractCegarLoop]: Abstraction has 443 states and 524 transitions. [2023-11-25 00:03:24,816 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 30.0) internal successors, (60), 3 states have internal predecessors, (60), 1 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2023-11-25 00:03:24,816 INFO L276 IsEmpty]: Start isEmpty. Operand 443 states and 524 transitions. [2023-11-25 00:03:24,817 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2023-11-25 00:03:24,817 INFO L187 NwaCegarLoop]: Found error trace [2023-11-25 00:03:24,817 INFO L195 NwaCegarLoop]: trace histogram [5, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-25 00:03:24,824 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e43b0255-4ad4-4624-866f-8d6911e34ce8/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2023-11-25 00:03:25,023 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e43b0255-4ad4-4624-866f-8d6911e34ce8/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2023-11-25 00:03:25,023 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 137 more)] === [2023-11-25 00:03:25,024 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-25 00:03:25,024 INFO L85 PathProgramCache]: Analyzing trace with hash -636718293, now seen corresponding path program 1 times [2023-11-25 00:03:25,024 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-25 00:03:25,024 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [636654628] [2023-11-25 00:03:25,024 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-25 00:03:25,024 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-25 00:03:25,041 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-25 00:03:25,042 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1552755747] [2023-11-25 00:03:25,042 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-25 00:03:25,042 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-25 00:03:25,042 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e43b0255-4ad4-4624-866f-8d6911e34ce8/bin/utaipan-verify-SwPr7d2a91/z3 [2023-11-25 00:03:25,043 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e43b0255-4ad4-4624-866f-8d6911e34ce8/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-25 00:03:25,068 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e43b0255-4ad4-4624-866f-8d6911e34ce8/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2023-11-25 00:03:25,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-25 00:03:25,114 INFO L262 TraceCheckSpWp]: Trace formula consists of 146 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-25 00:03:25,116 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-25 00:03:25,236 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-11-25 00:03:25,236 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-25 00:03:25,236 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-25 00:03:25,237 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [636654628] [2023-11-25 00:03:25,237 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-25 00:03:25,237 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1552755747] [2023-11-25 00:03:25,237 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1552755747] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-25 00:03:25,237 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-25 00:03:25,237 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-25 00:03:25,237 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1523168155] [2023-11-25 00:03:25,237 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-25 00:03:25,238 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-25 00:03:25,238 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-25 00:03:25,238 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-25 00:03:25,239 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-11-25 00:03:25,239 INFO L87 Difference]: Start difference. First operand 443 states and 524 transitions. Second operand has 6 states, 5 states have (on average 12.6) internal successors, (63), 5 states have internal predecessors, (63), 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 00:03:25,292 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-25 00:03:25,292 INFO L93 Difference]: Finished difference Result 606 states and 692 transitions. [2023-11-25 00:03:25,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-25 00:03:25,293 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 12.6) internal successors, (63), 5 states have internal predecessors, (63), 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 77 [2023-11-25 00:03:25,293 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-25 00:03:25,295 INFO L225 Difference]: With dead ends: 606 [2023-11-25 00:03:25,295 INFO L226 Difference]: Without dead ends: 285 [2023-11-25 00:03:25,296 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 72 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2023-11-25 00:03:25,296 INFO L413 NwaCegarLoop]: 224 mSDtfsCounter, 170 mSDsluCounter, 224 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 170 SdHoareTripleChecker+Valid, 448 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-25 00:03:25,297 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [170 Valid, 448 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-25 00:03:25,298 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 285 states. [2023-11-25 00:03:25,307 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 285 to 285. [2023-11-25 00:03:25,308 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 285 states, 205 states have (on average 1.3804878048780487) internal successors, (283), 270 states have internal predecessors, (283), 13 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2023-11-25 00:03:25,310 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 285 states to 285 states and 309 transitions. [2023-11-25 00:03:25,310 INFO L78 Accepts]: Start accepts. Automaton has 285 states and 309 transitions. Word has length 77 [2023-11-25 00:03:25,310 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-25 00:03:25,310 INFO L495 AbstractCegarLoop]: Abstraction has 285 states and 309 transitions. [2023-11-25 00:03:25,311 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 12.6) internal successors, (63), 5 states have internal predecessors, (63), 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 00:03:25,311 INFO L276 IsEmpty]: Start isEmpty. Operand 285 states and 309 transitions. [2023-11-25 00:03:25,312 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2023-11-25 00:03:25,312 INFO L187 NwaCegarLoop]: Found error trace [2023-11-25 00:03:25,312 INFO L195 NwaCegarLoop]: trace histogram [5, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-25 00:03:25,328 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e43b0255-4ad4-4624-866f-8d6911e34ce8/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2023-11-25 00:03:25,517 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e43b0255-4ad4-4624-866f-8d6911e34ce8/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2023-11-25 00:03:25,517 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 137 more)] === [2023-11-25 00:03:25,518 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-25 00:03:25,518 INFO L85 PathProgramCache]: Analyzing trace with hash 1736569438, now seen corresponding path program 1 times [2023-11-25 00:03:25,518 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-25 00:03:25,518 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [280732783] [2023-11-25 00:03:25,518 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-25 00:03:25,519 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-25 00:03:25,529 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-25 00:03:25,530 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1205395779] [2023-11-25 00:03:25,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-25 00:03:25,530 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-25 00:03:25,530 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e43b0255-4ad4-4624-866f-8d6911e34ce8/bin/utaipan-verify-SwPr7d2a91/z3 [2023-11-25 00:03:25,531 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e43b0255-4ad4-4624-866f-8d6911e34ce8/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-25 00:03:25,548 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e43b0255-4ad4-4624-866f-8d6911e34ce8/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2023-11-25 00:03:25,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-25 00:03:25,594 INFO L262 TraceCheckSpWp]: Trace formula consists of 147 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-25 00:03:25,596 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-25 00:03:25,726 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-11-25 00:03:25,726 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-25 00:03:25,880 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-11-25 00:03:25,881 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-25 00:03:25,881 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [280732783] [2023-11-25 00:03:25,881 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-25 00:03:25,881 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1205395779] [2023-11-25 00:03:25,881 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1205395779] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-25 00:03:25,882 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1301811781] [2023-11-25 00:03:25,911 INFO L159 IcfgInterpreter]: Started Sifa with 68 locations of interest [2023-11-25 00:03:25,911 INFO L166 IcfgInterpreter]: Building call graph [2023-11-25 00:03:25,919 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-11-25 00:03:25,926 INFO L176 IcfgInterpreter]: Starting interpretation [2023-11-25 00:03:25,927 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-11-25 00:03:29,249 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 8 for LOIs [2023-11-25 00:03:29,250 INFO L180 IcfgInterpreter]: Interpretation finished [2023-11-25 00:03:31,056 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [1301811781] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-25 00:03:31,056 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2023-11-25 00:03:31,056 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [4, 5] total 22 [2023-11-25 00:03:31,057 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1232944410] [2023-11-25 00:03:31,057 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-25 00:03:31,057 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2023-11-25 00:03:31,058 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-25 00:03:31,058 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2023-11-25 00:03:31,059 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=125, Invalid=381, Unknown=0, NotChecked=0, Total=506 [2023-11-25 00:03:31,059 INFO L87 Difference]: Start difference. First operand 285 states and 309 transitions. Second operand has 15 states, 13 states have (on average 4.769230769230769) internal successors, (62), 13 states have internal predecessors, (62), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 4 states have call predecessors, (5), 2 states have call successors, (5) [2023-11-25 00:03:35,223 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-25 00:03:35,223 INFO L93 Difference]: Finished difference Result 293 states and 309 transitions. [2023-11-25 00:03:35,223 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-11-25 00:03:35,223 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 13 states have (on average 4.769230769230769) internal successors, (62), 13 states have internal predecessors, (62), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 4 states have call predecessors, (5), 2 states have call successors, (5) Word has length 78 [2023-11-25 00:03:35,224 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-25 00:03:35,225 INFO L225 Difference]: With dead ends: 293 [2023-11-25 00:03:35,225 INFO L226 Difference]: Without dead ends: 123 [2023-11-25 00:03:35,226 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 236 GetRequests, 187 SyntacticMatches, 24 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 505 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=179, Invalid=523, Unknown=0, NotChecked=0, Total=702 [2023-11-25 00:03:35,226 INFO L413 NwaCegarLoop]: 18 mSDtfsCounter, 420 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 1914 mSolverCounterSat, 85 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 423 SdHoareTripleChecker+Valid, 36 SdHoareTripleChecker+Invalid, 1999 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 85 IncrementalHoareTripleChecker+Valid, 1914 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2023-11-25 00:03:35,227 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [423 Valid, 36 Invalid, 1999 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [85 Valid, 1914 Invalid, 0 Unknown, 0 Unchecked, 3.9s Time] [2023-11-25 00:03:35,227 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 123 states. [2023-11-25 00:03:35,238 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 123 to 123. [2023-11-25 00:03:35,239 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 123 states, 97 states have (on average 1.175257731958763) internal successors, (114), 114 states have internal predecessors, (114), 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 00:03:35,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 123 states and 128 transitions. [2023-11-25 00:03:35,240 INFO L78 Accepts]: Start accepts. Automaton has 123 states and 128 transitions. Word has length 78 [2023-11-25 00:03:35,241 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-25 00:03:35,241 INFO L495 AbstractCegarLoop]: Abstraction has 123 states and 128 transitions. [2023-11-25 00:03:35,241 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 13 states have (on average 4.769230769230769) internal successors, (62), 13 states have internal predecessors, (62), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 4 states have call predecessors, (5), 2 states have call successors, (5) [2023-11-25 00:03:35,242 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 128 transitions. [2023-11-25 00:03:35,243 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2023-11-25 00:03:35,243 INFO L187 NwaCegarLoop]: Found error trace [2023-11-25 00:03:35,243 INFO L195 NwaCegarLoop]: trace histogram [6, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-25 00:03:35,263 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e43b0255-4ad4-4624-866f-8d6911e34ce8/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2023-11-25 00:03:35,452 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e43b0255-4ad4-4624-866f-8d6911e34ce8/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-25 00:03:35,452 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr61ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 137 more)] === [2023-11-25 00:03:35,453 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-25 00:03:35,453 INFO L85 PathProgramCache]: Analyzing trace with hash -677897490, now seen corresponding path program 1 times [2023-11-25 00:03:35,453 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-25 00:03:35,453 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1140980113] [2023-11-25 00:03:35,453 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-25 00:03:35,453 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-25 00:03:35,467 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-25 00:03:35,467 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2012642813] [2023-11-25 00:03:35,467 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-25 00:03:35,467 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-25 00:03:35,468 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e43b0255-4ad4-4624-866f-8d6911e34ce8/bin/utaipan-verify-SwPr7d2a91/z3 [2023-11-25 00:03:35,469 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e43b0255-4ad4-4624-866f-8d6911e34ce8/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-25 00:03:35,498 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e43b0255-4ad4-4624-866f-8d6911e34ce8/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2023-11-25 00:03:35,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-25 00:03:35,546 INFO L262 TraceCheckSpWp]: Trace formula consists of 164 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-25 00:03:35,548 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-25 00:03:35,653 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2023-11-25 00:03:35,653 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-25 00:03:35,653 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-25 00:03:35,654 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1140980113] [2023-11-25 00:03:35,654 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-25 00:03:35,654 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2012642813] [2023-11-25 00:03:35,654 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2012642813] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-25 00:03:35,654 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-25 00:03:35,654 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-25 00:03:35,655 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1768947422] [2023-11-25 00:03:35,655 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-25 00:03:35,655 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-25 00:03:35,655 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-25 00:03:35,656 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-25 00:03:35,656 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-25 00:03:35,656 INFO L87 Difference]: Start difference. First operand 123 states and 128 transitions. Second operand has 3 states, 2 states have (on average 34.0) internal successors, (68), 3 states have internal predecessors, (68), 1 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2023-11-25 00:03:35,901 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-25 00:03:35,902 INFO L93 Difference]: Finished difference Result 123 states and 128 transitions. [2023-11-25 00:03:35,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-25 00:03:35,902 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 34.0) internal successors, (68), 3 states have internal predecessors, (68), 1 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) Word has length 88 [2023-11-25 00:03:35,903 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-25 00:03:35,903 INFO L225 Difference]: With dead ends: 123 [2023-11-25 00:03:35,903 INFO L226 Difference]: Without dead ends: 121 [2023-11-25 00:03:35,904 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 86 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 00:03:35,904 INFO L413 NwaCegarLoop]: 85 mSDtfsCounter, 42 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 92 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-25 00:03:35,905 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [43 Valid, 92 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-25 00:03:35,905 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 121 states. [2023-11-25 00:03:35,913 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 121 to 121. [2023-11-25 00:03:35,914 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 121 states, 97 states have (on average 1.1546391752577319) internal successors, (112), 112 states have internal predecessors, (112), 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 00:03:35,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 121 states and 126 transitions. [2023-11-25 00:03:35,915 INFO L78 Accepts]: Start accepts. Automaton has 121 states and 126 transitions. Word has length 88 [2023-11-25 00:03:35,915 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-25 00:03:35,915 INFO L495 AbstractCegarLoop]: Abstraction has 121 states and 126 transitions. [2023-11-25 00:03:35,915 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 34.0) internal successors, (68), 3 states have internal predecessors, (68), 1 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2023-11-25 00:03:35,915 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states and 126 transitions. [2023-11-25 00:03:35,916 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2023-11-25 00:03:35,916 INFO L187 NwaCegarLoop]: Found error trace [2023-11-25 00:03:35,917 INFO L195 NwaCegarLoop]: trace histogram [6, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-25 00:03:35,927 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e43b0255-4ad4-4624-866f-8d6911e34ce8/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Forceful destruction successful, exit code 0 [2023-11-25 00:03:36,122 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e43b0255-4ad4-4624-866f-8d6911e34ce8/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable19 [2023-11-25 00:03:36,122 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr62ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 137 more)] === [2023-11-25 00:03:36,123 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-25 00:03:36,123 INFO L85 PathProgramCache]: Analyzing trace with hash 460014472, now seen corresponding path program 1 times [2023-11-25 00:03:36,123 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-25 00:03:36,123 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [678846044] [2023-11-25 00:03:36,124 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-25 00:03:36,124 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-25 00:03:36,140 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-25 00:03:36,140 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1862511818] [2023-11-25 00:03:36,140 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-25 00:03:36,141 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-25 00:03:36,141 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e43b0255-4ad4-4624-866f-8d6911e34ce8/bin/utaipan-verify-SwPr7d2a91/z3 [2023-11-25 00:03:36,142 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e43b0255-4ad4-4624-866f-8d6911e34ce8/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-25 00:03:36,168 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e43b0255-4ad4-4624-866f-8d6911e34ce8/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2023-11-25 00:03:36,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-25 00:03:36,218 INFO L262 TraceCheckSpWp]: Trace formula consists of 165 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-25 00:03:36,220 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-25 00:03:36,670 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-11-25 00:03:36,670 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-25 00:03:36,938 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-25 00:03:36,938 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [678846044] [2023-11-25 00:03:36,938 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-25 00:03:36,938 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1862511818] [2023-11-25 00:03:36,938 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1862511818] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-25 00:03:36,939 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1529384306] [2023-11-25 00:03:36,942 INFO L159 IcfgInterpreter]: Started Sifa with 76 locations of interest [2023-11-25 00:03:36,943 INFO L166 IcfgInterpreter]: Building call graph [2023-11-25 00:03:36,943 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-11-25 00:03:36,943 INFO L176 IcfgInterpreter]: Starting interpretation [2023-11-25 00:03:36,944 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-11-25 00:03:39,632 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 8 for LOIs [2023-11-25 00:03:39,634 INFO L180 IcfgInterpreter]: Interpretation finished [2023-11-25 00:03:42,157 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [1529384306] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-25 00:03:42,157 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-25 00:03:42,157 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [4] total 19 [2023-11-25 00:03:42,157 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [999485171] [2023-11-25 00:03:42,157 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-25 00:03:42,158 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2023-11-25 00:03:42,158 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-25 00:03:42,159 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2023-11-25 00:03:42,159 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=132, Invalid=374, Unknown=0, NotChecked=0, Total=506 [2023-11-25 00:03:42,159 INFO L87 Difference]: Start difference. First operand 121 states and 126 transitions. Second operand has 17 states, 15 states have (on average 4.6) internal successors, (69), 15 states have internal predecessors, (69), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 4 states have call predecessors, (6), 2 states have call successors, (6) [2023-11-25 00:03:44,301 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-25 00:03:44,301 INFO L93 Difference]: Finished difference Result 121 states and 126 transitions. [2023-11-25 00:03:44,302 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-11-25 00:03:44,302 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 15 states have (on average 4.6) internal successors, (69), 15 states have internal predecessors, (69), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 4 states have call predecessors, (6), 2 states have call successors, (6) Word has length 89 [2023-11-25 00:03:44,302 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-25 00:03:44,303 INFO L225 Difference]: With dead ends: 121 [2023-11-25 00:03:44,303 INFO L226 Difference]: Without dead ends: 0 [2023-11-25 00:03:44,304 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 207 GetRequests, 155 SyntacticMatches, 25 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 373 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=216, Invalid=596, Unknown=0, NotChecked=0, Total=812 [2023-11-25 00:03:44,304 INFO L413 NwaCegarLoop]: 7 mSDtfsCounter, 145 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1041 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 145 SdHoareTripleChecker+Valid, 7 SdHoareTripleChecker+Invalid, 1073 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 1041 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2023-11-25 00:03:44,305 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [145 Valid, 7 Invalid, 1073 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 1041 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2023-11-25 00:03:44,306 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-11-25 00:03:44,306 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-11-25 00:03:44,306 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 00:03:44,306 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-11-25 00:03:44,306 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 89 [2023-11-25 00:03:44,306 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-25 00:03:44,307 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-25 00:03:44,307 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 15 states have (on average 4.6) internal successors, (69), 15 states have internal predecessors, (69), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 4 states have call predecessors, (6), 2 states have call successors, (6) [2023-11-25 00:03:44,307 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-11-25 00:03:44,307 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-25 00:03:44,310 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (139 of 140 remaining) [2023-11-25 00:03:44,310 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (138 of 140 remaining) [2023-11-25 00:03:44,310 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (137 of 140 remaining) [2023-11-25 00:03:44,311 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (136 of 140 remaining) [2023-11-25 00:03:44,311 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (135 of 140 remaining) [2023-11-25 00:03:44,311 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (134 of 140 remaining) [2023-11-25 00:03:44,311 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (133 of 140 remaining) [2023-11-25 00:03:44,312 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (132 of 140 remaining) [2023-11-25 00:03:44,312 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (131 of 140 remaining) [2023-11-25 00:03:44,312 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW (130 of 140 remaining) [2023-11-25 00:03:44,313 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW (129 of 140 remaining) [2023-11-25 00:03:44,313 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW (128 of 140 remaining) [2023-11-25 00:03:44,313 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW (127 of 140 remaining) [2023-11-25 00:03:44,313 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW (126 of 140 remaining) [2023-11-25 00:03:44,314 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW (125 of 140 remaining) [2023-11-25 00:03:44,314 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW (124 of 140 remaining) [2023-11-25 00:03:44,314 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW (123 of 140 remaining) [2023-11-25 00:03:44,314 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW (122 of 140 remaining) [2023-11-25 00:03:44,315 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW (121 of 140 remaining) [2023-11-25 00:03:44,315 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW (120 of 140 remaining) [2023-11-25 00:03:44,315 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW (119 of 140 remaining) [2023-11-25 00:03:44,315 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW (118 of 140 remaining) [2023-11-25 00:03:44,316 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW (117 of 140 remaining) [2023-11-25 00:03:44,316 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW (116 of 140 remaining) [2023-11-25 00:03:44,316 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW (115 of 140 remaining) [2023-11-25 00:03:44,316 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW (114 of 140 remaining) [2023-11-25 00:03:44,317 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW (113 of 140 remaining) [2023-11-25 00:03:44,317 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW (112 of 140 remaining) [2023-11-25 00:03:44,317 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW (111 of 140 remaining) [2023-11-25 00:03:44,317 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW (110 of 140 remaining) [2023-11-25 00:03:44,318 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW (109 of 140 remaining) [2023-11-25 00:03:44,318 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW (108 of 140 remaining) [2023-11-25 00:03:44,318 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr32ASSERT_VIOLATIONINTEGER_OVERFLOW (107 of 140 remaining) [2023-11-25 00:03:44,318 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW (106 of 140 remaining) [2023-11-25 00:03:44,319 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr34ASSERT_VIOLATIONINTEGER_OVERFLOW (105 of 140 remaining) [2023-11-25 00:03:44,319 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr35ASSERT_VIOLATIONINTEGER_OVERFLOW (104 of 140 remaining) [2023-11-25 00:03:44,319 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr36ASSERT_VIOLATIONINTEGER_OVERFLOW (103 of 140 remaining) [2023-11-25 00:03:44,319 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr37ASSERT_VIOLATIONINTEGER_OVERFLOW (102 of 140 remaining) [2023-11-25 00:03:44,320 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr38ASSERT_VIOLATIONINTEGER_OVERFLOW (101 of 140 remaining) [2023-11-25 00:03:44,320 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr39ASSERT_VIOLATIONINTEGER_OVERFLOW (100 of 140 remaining) [2023-11-25 00:03:44,320 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr40ASSERT_VIOLATIONINTEGER_OVERFLOW (99 of 140 remaining) [2023-11-25 00:03:44,320 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr41ASSERT_VIOLATIONINTEGER_OVERFLOW (98 of 140 remaining) [2023-11-25 00:03:44,320 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr42ASSERT_VIOLATIONINTEGER_OVERFLOW (97 of 140 remaining) [2023-11-25 00:03:44,321 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr43ASSERT_VIOLATIONINTEGER_OVERFLOW (96 of 140 remaining) [2023-11-25 00:03:44,321 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr44ASSERT_VIOLATIONINTEGER_OVERFLOW (95 of 140 remaining) [2023-11-25 00:03:44,321 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr45ASSERT_VIOLATIONINTEGER_OVERFLOW (94 of 140 remaining) [2023-11-25 00:03:44,321 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr46ASSERT_VIOLATIONINTEGER_OVERFLOW (93 of 140 remaining) [2023-11-25 00:03:44,322 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr47ASSERT_VIOLATIONINTEGER_OVERFLOW (92 of 140 remaining) [2023-11-25 00:03:44,322 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr48ASSERT_VIOLATIONINTEGER_OVERFLOW (91 of 140 remaining) [2023-11-25 00:03:44,322 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr49ASSERT_VIOLATIONINTEGER_OVERFLOW (90 of 140 remaining) [2023-11-25 00:03:44,322 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr50ASSERT_VIOLATIONINTEGER_OVERFLOW (89 of 140 remaining) [2023-11-25 00:03:44,323 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr51ASSERT_VIOLATIONINTEGER_OVERFLOW (88 of 140 remaining) [2023-11-25 00:03:44,323 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr52ASSERT_VIOLATIONINTEGER_OVERFLOW (87 of 140 remaining) [2023-11-25 00:03:44,323 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr53ASSERT_VIOLATIONINTEGER_OVERFLOW (86 of 140 remaining) [2023-11-25 00:03:44,323 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr54ASSERT_VIOLATIONINTEGER_OVERFLOW (85 of 140 remaining) [2023-11-25 00:03:44,324 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr55ASSERT_VIOLATIONINTEGER_OVERFLOW (84 of 140 remaining) [2023-11-25 00:03:44,324 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr56ASSERT_VIOLATIONINTEGER_OVERFLOW (83 of 140 remaining) [2023-11-25 00:03:44,324 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr57ASSERT_VIOLATIONINTEGER_OVERFLOW (82 of 140 remaining) [2023-11-25 00:03:44,324 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr58ASSERT_VIOLATIONINTEGER_OVERFLOW (81 of 140 remaining) [2023-11-25 00:03:44,325 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr59ASSERT_VIOLATIONINTEGER_OVERFLOW (80 of 140 remaining) [2023-11-25 00:03:44,325 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr60ASSERT_VIOLATIONINTEGER_OVERFLOW (79 of 140 remaining) [2023-11-25 00:03:44,325 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr61ASSERT_VIOLATIONINTEGER_OVERFLOW (78 of 140 remaining) [2023-11-25 00:03:44,325 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr62ASSERT_VIOLATIONINTEGER_OVERFLOW (77 of 140 remaining) [2023-11-25 00:03:44,326 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr63ASSERT_VIOLATIONINTEGER_OVERFLOW (76 of 140 remaining) [2023-11-25 00:03:44,326 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr64ASSERT_VIOLATIONINTEGER_OVERFLOW (75 of 140 remaining) [2023-11-25 00:03:44,326 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr65ASSERT_VIOLATIONINTEGER_OVERFLOW (74 of 140 remaining) [2023-11-25 00:03:44,326 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr66ASSERT_VIOLATIONINTEGER_OVERFLOW (73 of 140 remaining) [2023-11-25 00:03:44,327 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr67ASSERT_VIOLATIONINTEGER_OVERFLOW (72 of 140 remaining) [2023-11-25 00:03:44,327 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr68ASSERT_VIOLATIONINTEGER_OVERFLOW (71 of 140 remaining) [2023-11-25 00:03:44,327 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr69ASSERT_VIOLATIONINTEGER_OVERFLOW (70 of 140 remaining) [2023-11-25 00:03:44,327 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr70ASSERT_VIOLATIONINTEGER_OVERFLOW (69 of 140 remaining) [2023-11-25 00:03:44,328 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr71ASSERT_VIOLATIONINTEGER_OVERFLOW (68 of 140 remaining) [2023-11-25 00:03:44,328 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr72ASSERT_VIOLATIONINTEGER_OVERFLOW (67 of 140 remaining) [2023-11-25 00:03:44,328 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr73ASSERT_VIOLATIONINTEGER_OVERFLOW (66 of 140 remaining) [2023-11-25 00:03:44,328 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr74ASSERT_VIOLATIONINTEGER_OVERFLOW (65 of 140 remaining) [2023-11-25 00:03:44,329 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr75ASSERT_VIOLATIONINTEGER_OVERFLOW (64 of 140 remaining) [2023-11-25 00:03:44,329 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr76ASSERT_VIOLATIONINTEGER_OVERFLOW (63 of 140 remaining) [2023-11-25 00:03:44,329 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr77ASSERT_VIOLATIONINTEGER_OVERFLOW (62 of 140 remaining) [2023-11-25 00:03:44,329 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr78ASSERT_VIOLATIONINTEGER_OVERFLOW (61 of 140 remaining) [2023-11-25 00:03:44,329 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr79ASSERT_VIOLATIONINTEGER_OVERFLOW (60 of 140 remaining) [2023-11-25 00:03:44,330 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr80ASSERT_VIOLATIONINTEGER_OVERFLOW (59 of 140 remaining) [2023-11-25 00:03:44,330 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr81ASSERT_VIOLATIONINTEGER_OVERFLOW (58 of 140 remaining) [2023-11-25 00:03:44,330 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr82ASSERT_VIOLATIONINTEGER_OVERFLOW (57 of 140 remaining) [2023-11-25 00:03:44,330 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr83ASSERT_VIOLATIONINTEGER_OVERFLOW (56 of 140 remaining) [2023-11-25 00:03:44,331 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr84ASSERT_VIOLATIONINTEGER_OVERFLOW (55 of 140 remaining) [2023-11-25 00:03:44,331 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr85ASSERT_VIOLATIONINTEGER_OVERFLOW (54 of 140 remaining) [2023-11-25 00:03:44,331 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr86ASSERT_VIOLATIONINTEGER_OVERFLOW (53 of 140 remaining) [2023-11-25 00:03:44,331 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr87ASSERT_VIOLATIONINTEGER_OVERFLOW (52 of 140 remaining) [2023-11-25 00:03:44,331 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr88ASSERT_VIOLATIONINTEGER_OVERFLOW (51 of 140 remaining) [2023-11-25 00:03:44,332 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr89ASSERT_VIOLATIONINTEGER_OVERFLOW (50 of 140 remaining) [2023-11-25 00:03:44,332 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr90ASSERT_VIOLATIONINTEGER_OVERFLOW (49 of 140 remaining) [2023-11-25 00:03:44,332 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr91ASSERT_VIOLATIONINTEGER_OVERFLOW (48 of 140 remaining) [2023-11-25 00:03:44,332 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr92ASSERT_VIOLATIONINTEGER_OVERFLOW (47 of 140 remaining) [2023-11-25 00:03:44,333 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr93ASSERT_VIOLATIONINTEGER_OVERFLOW (46 of 140 remaining) [2023-11-25 00:03:44,333 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr94ASSERT_VIOLATIONINTEGER_OVERFLOW (45 of 140 remaining) [2023-11-25 00:03:44,333 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr95ASSERT_VIOLATIONINTEGER_OVERFLOW (44 of 140 remaining) [2023-11-25 00:03:44,333 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr96ASSERT_VIOLATIONINTEGER_OVERFLOW (43 of 140 remaining) [2023-11-25 00:03:44,333 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr97ASSERT_VIOLATIONINTEGER_OVERFLOW (42 of 140 remaining) [2023-11-25 00:03:44,334 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr98ASSERT_VIOLATIONINTEGER_OVERFLOW (41 of 140 remaining) [2023-11-25 00:03:44,334 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr99ASSERT_VIOLATIONINTEGER_OVERFLOW (40 of 140 remaining) [2023-11-25 00:03:44,334 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr100ASSERT_VIOLATIONINTEGER_OVERFLOW (39 of 140 remaining) [2023-11-25 00:03:44,334 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr101ASSERT_VIOLATIONINTEGER_OVERFLOW (38 of 140 remaining) [2023-11-25 00:03:44,335 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr102ASSERT_VIOLATIONINTEGER_OVERFLOW (37 of 140 remaining) [2023-11-25 00:03:44,335 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr103ASSERT_VIOLATIONINTEGER_OVERFLOW (36 of 140 remaining) [2023-11-25 00:03:44,335 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr104ASSERT_VIOLATIONINTEGER_OVERFLOW (35 of 140 remaining) [2023-11-25 00:03:44,335 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr105ASSERT_VIOLATIONINTEGER_OVERFLOW (34 of 140 remaining) [2023-11-25 00:03:44,335 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr106ASSERT_VIOLATIONINTEGER_OVERFLOW (33 of 140 remaining) [2023-11-25 00:03:44,336 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr107ASSERT_VIOLATIONINTEGER_OVERFLOW (32 of 140 remaining) [2023-11-25 00:03:44,336 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr108ASSERT_VIOLATIONINTEGER_OVERFLOW (31 of 140 remaining) [2023-11-25 00:03:44,336 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr109ASSERT_VIOLATIONINTEGER_OVERFLOW (30 of 140 remaining) [2023-11-25 00:03:44,336 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr110ASSERT_VIOLATIONINTEGER_OVERFLOW (29 of 140 remaining) [2023-11-25 00:03:44,337 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr111ASSERT_VIOLATIONINTEGER_OVERFLOW (28 of 140 remaining) [2023-11-25 00:03:44,337 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr112ASSERT_VIOLATIONINTEGER_OVERFLOW (27 of 140 remaining) [2023-11-25 00:03:44,337 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr113ASSERT_VIOLATIONINTEGER_OVERFLOW (26 of 140 remaining) [2023-11-25 00:03:44,337 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr114ASSERT_VIOLATIONINTEGER_OVERFLOW (25 of 140 remaining) [2023-11-25 00:03:44,337 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr115ASSERT_VIOLATIONINTEGER_OVERFLOW (24 of 140 remaining) [2023-11-25 00:03:44,338 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr116ASSERT_VIOLATIONINTEGER_OVERFLOW (23 of 140 remaining) [2023-11-25 00:03:44,338 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr117ASSERT_VIOLATIONINTEGER_OVERFLOW (22 of 140 remaining) [2023-11-25 00:03:44,338 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr118ASSERT_VIOLATIONINTEGER_OVERFLOW (21 of 140 remaining) [2023-11-25 00:03:44,338 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr119ASSERT_VIOLATIONINTEGER_OVERFLOW (20 of 140 remaining) [2023-11-25 00:03:44,338 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr120ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 140 remaining) [2023-11-25 00:03:44,339 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr121ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 140 remaining) [2023-11-25 00:03:44,339 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr122ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 140 remaining) [2023-11-25 00:03:44,339 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr123ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 140 remaining) [2023-11-25 00:03:44,339 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr124ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 140 remaining) [2023-11-25 00:03:44,340 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr125ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 140 remaining) [2023-11-25 00:03:44,340 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr126ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 140 remaining) [2023-11-25 00:03:44,340 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr127ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 140 remaining) [2023-11-25 00:03:44,340 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr128ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 140 remaining) [2023-11-25 00:03:44,340 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr129ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 140 remaining) [2023-11-25 00:03:44,341 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr130ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 140 remaining) [2023-11-25 00:03:44,341 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr131ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 140 remaining) [2023-11-25 00:03:44,341 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr132ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 140 remaining) [2023-11-25 00:03:44,341 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr133ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 140 remaining) [2023-11-25 00:03:44,342 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr134ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 140 remaining) [2023-11-25 00:03:44,342 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr135ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 140 remaining) [2023-11-25 00:03:44,342 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr136ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 140 remaining) [2023-11-25 00:03:44,342 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr137ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 140 remaining) [2023-11-25 00:03:44,342 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr138ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 140 remaining) [2023-11-25 00:03:44,343 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr139ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 140 remaining) [2023-11-25 00:03:44,349 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e43b0255-4ad4-4624-866f-8d6911e34ce8/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Forceful destruction successful, exit code 0 [2023-11-25 00:03:44,549 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e43b0255-4ad4-4624-866f-8d6911e34ce8/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-25 00:03:44,550 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions.