./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/fermat2-ll_valuebound20.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eddeddc0-fd7c-454d-a152-3b12d7ae0c1b/bin/uautomizer-verify-BQ2R08f2Ya/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eddeddc0-fd7c-454d-a152-3b12d7ae0c1b/bin/uautomizer-verify-BQ2R08f2Ya/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eddeddc0-fd7c-454d-a152-3b12d7ae0c1b/bin/uautomizer-verify-BQ2R08f2Ya/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eddeddc0-fd7c-454d-a152-3b12d7ae0c1b/bin/uautomizer-verify-BQ2R08f2Ya/config/AutomizerReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/fermat2-ll_valuebound20.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eddeddc0-fd7c-454d-a152-3b12d7ae0c1b/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eddeddc0-fd7c-454d-a152-3b12d7ae0c1b/bin/uautomizer-verify-BQ2R08f2Ya --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 Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash cd2a63b33e7bbe230c7b5ef9bb577263b79c304327f57b571a4977a8b534c93c --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-29 05:28:37,373 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-29 05:28:37,444 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eddeddc0-fd7c-454d-a152-3b12d7ae0c1b/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-11-29 05:28:37,449 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-29 05:28:37,450 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-29 05:28:37,475 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-29 05:28:37,475 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-29 05:28:37,476 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-29 05:28:37,477 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-29 05:28:37,477 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-29 05:28:37,478 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-29 05:28:37,479 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-29 05:28:37,479 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-29 05:28:37,480 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-29 05:28:37,481 INFO L153 SettingsManager]: * Use SBE=true [2023-11-29 05:28:37,481 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-29 05:28:37,482 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-29 05:28:37,482 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-29 05:28:37,483 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-29 05:28:37,483 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-29 05:28:37,484 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-29 05:28:37,484 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-29 05:28:37,485 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-29 05:28:37,485 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-29 05:28:37,485 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-29 05:28:37,486 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-29 05:28:37,486 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-29 05:28:37,487 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-29 05:28:37,487 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-29 05:28:37,496 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-29 05:28:37,497 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-29 05:28:37,497 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-29 05:28:37,498 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-29 05:28:37,498 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 05:28:37,499 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-29 05:28:37,499 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-29 05:28:37,499 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-29 05:28:37,500 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-29 05:28:37,500 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-29 05:28:37,500 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-29 05:28:37,501 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-29 05:28:37,501 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-29 05:28:37,501 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-29 05:28:37,502 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-29 05:28:37,502 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_eddeddc0-fd7c-454d-a152-3b12d7ae0c1b/bin/uautomizer-verify-BQ2R08f2Ya/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eddeddc0-fd7c-454d-a152-3b12d7ae0c1b/bin/uautomizer-verify-BQ2R08f2Ya Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> cd2a63b33e7bbe230c7b5ef9bb577263b79c304327f57b571a4977a8b534c93c [2023-11-29 05:28:37,750 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-29 05:28:37,771 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-29 05:28:37,773 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-29 05:28:37,775 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-29 05:28:37,775 INFO L274 PluginConnector]: CDTParser initialized [2023-11-29 05:28:37,776 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eddeddc0-fd7c-454d-a152-3b12d7ae0c1b/bin/uautomizer-verify-BQ2R08f2Ya/../../sv-benchmarks/c/nla-digbench-scaling/fermat2-ll_valuebound20.c [2023-11-29 05:28:40,530 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-29 05:28:40,730 INFO L384 CDTParser]: Found 1 translation units. [2023-11-29 05:28:40,731 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eddeddc0-fd7c-454d-a152-3b12d7ae0c1b/sv-benchmarks/c/nla-digbench-scaling/fermat2-ll_valuebound20.c [2023-11-29 05:28:40,738 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eddeddc0-fd7c-454d-a152-3b12d7ae0c1b/bin/uautomizer-verify-BQ2R08f2Ya/data/367bed0d9/3fa843d2d5ae4a7aa15035d502155ffa/FLAG596815350 [2023-11-29 05:28:40,761 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eddeddc0-fd7c-454d-a152-3b12d7ae0c1b/bin/uautomizer-verify-BQ2R08f2Ya/data/367bed0d9/3fa843d2d5ae4a7aa15035d502155ffa [2023-11-29 05:28:40,763 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-29 05:28:40,765 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-29 05:28:40,766 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-29 05:28:40,766 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-29 05:28:40,772 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-29 05:28:40,773 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 05:28:40" (1/1) ... [2023-11-29 05:28:40,774 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@584ad160 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:28:40, skipping insertion in model container [2023-11-29 05:28:40,774 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 05:28:40" (1/1) ... [2023-11-29 05:28:40,796 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-29 05:28:40,969 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 05:28:40,980 INFO L202 MainTranslator]: Completed pre-run [2023-11-29 05:28:41,003 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 05:28:41,018 INFO L206 MainTranslator]: Completed translation [2023-11-29 05:28:41,018 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:28:41 WrapperNode [2023-11-29 05:28:41,018 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-29 05:28:41,019 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-29 05:28:41,020 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-29 05:28:41,020 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-29 05:28:41,027 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:28:41" (1/1) ... [2023-11-29 05:28:41,035 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:28:41" (1/1) ... [2023-11-29 05:28:41,060 INFO L138 Inliner]: procedures = 14, calls = 14, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 106 [2023-11-29 05:28:41,061 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-29 05:28:41,062 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-29 05:28:41,062 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-29 05:28:41,062 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-29 05:28:41,074 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:28:41" (1/1) ... [2023-11-29 05:28:41,075 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:28:41" (1/1) ... [2023-11-29 05:28:41,077 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:28:41" (1/1) ... [2023-11-29 05:28:41,090 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2023-11-29 05:28:41,090 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:28:41" (1/1) ... [2023-11-29 05:28:41,090 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:28:41" (1/1) ... [2023-11-29 05:28:41,094 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:28:41" (1/1) ... [2023-11-29 05:28:41,097 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:28:41" (1/1) ... [2023-11-29 05:28:41,098 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:28:41" (1/1) ... [2023-11-29 05:28:41,100 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:28:41" (1/1) ... [2023-11-29 05:28:41,102 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-29 05:28:41,103 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-29 05:28:41,103 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-29 05:28:41,103 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-29 05:28:41,104 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:28:41" (1/1) ... [2023-11-29 05:28:41,110 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 05:28:41,121 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eddeddc0-fd7c-454d-a152-3b12d7ae0c1b/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:28:41,133 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eddeddc0-fd7c-454d-a152-3b12d7ae0c1b/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-29 05:28:41,137 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eddeddc0-fd7c-454d-a152-3b12d7ae0c1b/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-29 05:28:41,171 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-29 05:28:41,171 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-29 05:28:41,171 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-29 05:28:41,171 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-29 05:28:41,171 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-29 05:28:41,172 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-29 05:28:41,172 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-11-29 05:28:41,172 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-11-29 05:28:41,244 INFO L241 CfgBuilder]: Building ICFG [2023-11-29 05:28:41,247 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-29 05:28:41,695 INFO L282 CfgBuilder]: Performing block encoding [2023-11-29 05:28:41,718 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-29 05:28:41,719 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-29 05:28:41,719 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 05:28:41 BoogieIcfgContainer [2023-11-29 05:28:41,719 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-29 05:28:41,722 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-29 05:28:41,722 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-29 05:28:41,725 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-29 05:28:41,725 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 05:28:40" (1/3) ... [2023-11-29 05:28:41,726 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1db12b19 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 05:28:41, skipping insertion in model container [2023-11-29 05:28:41,726 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:28:41" (2/3) ... [2023-11-29 05:28:41,726 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1db12b19 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 05:28:41, skipping insertion in model container [2023-11-29 05:28:41,726 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 05:28:41" (3/3) ... [2023-11-29 05:28:41,728 INFO L112 eAbstractionObserver]: Analyzing ICFG fermat2-ll_valuebound20.c [2023-11-29 05:28:41,742 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-29 05:28:41,742 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 56 error locations. [2023-11-29 05:28:41,789 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-29 05:28:41,798 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=PETRI_NET, 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;@90f4c47, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-29 05:28:41,798 INFO L358 AbstractCegarLoop]: Starting to check reachability of 56 error locations. [2023-11-29 05:28:41,803 INFO L276 IsEmpty]: Start isEmpty. Operand has 133 states, 68 states have (on average 1.911764705882353) internal successors, (130), 124 states have internal predecessors, (130), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2023-11-29 05:28:41,810 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2023-11-29 05:28:41,811 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:28:41,811 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 05:28:41,812 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2023-11-29 05:28:41,817 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:28:41,817 INFO L85 PathProgramCache]: Analyzing trace with hash 2141259048, now seen corresponding path program 1 times [2023-11-29 05:28:41,827 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:28:41,827 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1822987108] [2023-11-29 05:28:41,828 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:28:41,828 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:28:41,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:28:41,963 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 05:28:41,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:28:41,972 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-29 05:28:41,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:28:41,980 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-29 05:28:41,980 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:28:41,981 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1822987108] [2023-11-29 05:28:41,982 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1822987108] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 05:28:41,982 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 05:28:41,982 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 05:28:41,984 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [437668090] [2023-11-29 05:28:41,985 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 05:28:41,989 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-29 05:28:41,989 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:28:42,019 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-29 05:28:42,020 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-29 05:28:42,023 INFO L87 Difference]: Start difference. First operand has 133 states, 68 states have (on average 1.911764705882353) internal successors, (130), 124 states have internal predecessors, (130), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) Second operand has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-29 05:28:42,058 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:28:42,058 INFO L93 Difference]: Finished difference Result 258 states and 287 transitions. [2023-11-29 05:28:42,060 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-29 05:28:42,061 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 13 [2023-11-29 05:28:42,061 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:28:42,068 INFO L225 Difference]: With dead ends: 258 [2023-11-29 05:28:42,068 INFO L226 Difference]: Without dead ends: 124 [2023-11-29 05:28:42,071 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-29 05:28:42,074 INFO L413 NwaCegarLoop]: 130 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 130 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 05:28:42,075 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 130 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 05:28:42,088 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 124 states. [2023-11-29 05:28:42,107 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 124 to 124. [2023-11-29 05:28:42,109 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 124 states, 67 states have (on average 1.7611940298507462) internal successors, (118), 116 states have internal predecessors, (118), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2023-11-29 05:28:42,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 124 states and 128 transitions. [2023-11-29 05:28:42,112 INFO L78 Accepts]: Start accepts. Automaton has 124 states and 128 transitions. Word has length 13 [2023-11-29 05:28:42,113 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:28:42,113 INFO L495 AbstractCegarLoop]: Abstraction has 124 states and 128 transitions. [2023-11-29 05:28:42,113 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-29 05:28:42,113 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states and 128 transitions. [2023-11-29 05:28:42,114 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2023-11-29 05:28:42,114 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:28:42,115 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 05:28:42,115 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-29 05:28:42,115 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2023-11-29 05:28:42,116 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:28:42,116 INFO L85 PathProgramCache]: Analyzing trace with hash 1748291620, now seen corresponding path program 1 times [2023-11-29 05:28:42,116 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:28:42,116 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [735686069] [2023-11-29 05:28:42,117 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:28:42,117 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:28:42,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:28:42,180 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 05:28:42,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:28:42,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-29 05:28:42,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:28:42,200 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-29 05:28:42,200 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:28:42,200 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [735686069] [2023-11-29 05:28:42,201 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [735686069] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 05:28:42,201 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 05:28:42,201 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 05:28:42,201 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1675869641] [2023-11-29 05:28:42,201 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 05:28:42,203 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 05:28:42,203 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:28:42,204 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 05:28:42,204 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 05:28:42,204 INFO L87 Difference]: Start difference. First operand 124 states and 128 transitions. Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-29 05:28:42,254 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:28:42,255 INFO L93 Difference]: Finished difference Result 124 states and 128 transitions. [2023-11-29 05:28:42,255 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 05:28:42,255 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 13 [2023-11-29 05:28:42,256 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:28:42,257 INFO L225 Difference]: With dead ends: 124 [2023-11-29 05:28:42,258 INFO L226 Difference]: Without dead ends: 120 [2023-11-29 05:28:42,258 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 05:28:42,260 INFO L413 NwaCegarLoop]: 101 mSDtfsCounter, 106 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 109 SdHoareTripleChecker+Valid, 113 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 05:28:42,260 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [109 Valid, 113 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 05:28:42,262 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120 states. [2023-11-29 05:28:42,271 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120 to 120. [2023-11-29 05:28:42,272 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 120 states, 67 states have (on average 1.7014925373134329) internal successors, (114), 112 states have internal predecessors, (114), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2023-11-29 05:28:42,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 124 transitions. [2023-11-29 05:28:42,274 INFO L78 Accepts]: Start accepts. Automaton has 120 states and 124 transitions. Word has length 13 [2023-11-29 05:28:42,275 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:28:42,276 INFO L495 AbstractCegarLoop]: Abstraction has 120 states and 124 transitions. [2023-11-29 05:28:42,276 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-29 05:28:42,276 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 124 transitions. [2023-11-29 05:28:42,277 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2023-11-29 05:28:42,277 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:28:42,277 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 05:28:42,277 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-29 05:28:42,278 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2023-11-29 05:28:42,278 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:28:42,278 INFO L85 PathProgramCache]: Analyzing trace with hash -1637534589, now seen corresponding path program 1 times [2023-11-29 05:28:42,278 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:28:42,279 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2117749007] [2023-11-29 05:28:42,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:28:42,279 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:28:42,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:28:42,321 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 05:28:42,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:28:42,327 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-29 05:28:42,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:28:42,338 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-29 05:28:42,338 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:28:42,338 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2117749007] [2023-11-29 05:28:42,338 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2117749007] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 05:28:42,339 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 05:28:42,339 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 05:28:42,339 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1540982716] [2023-11-29 05:28:42,339 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 05:28:42,340 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 05:28:42,340 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:28:42,340 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 05:28:42,341 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 05:28:42,341 INFO L87 Difference]: Start difference. First operand 120 states and 124 transitions. Second operand has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-29 05:28:42,381 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:28:42,381 INFO L93 Difference]: Finished difference Result 120 states and 124 transitions. [2023-11-29 05:28:42,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 05:28:42,382 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 14 [2023-11-29 05:28:42,383 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:28:42,384 INFO L225 Difference]: With dead ends: 120 [2023-11-29 05:28:42,384 INFO L226 Difference]: Without dead ends: 116 [2023-11-29 05:28:42,384 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 05:28:42,386 INFO L413 NwaCegarLoop]: 101 mSDtfsCounter, 101 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 104 SdHoareTripleChecker+Valid, 113 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 05:28:42,386 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [104 Valid, 113 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 05:28:42,388 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116 states. [2023-11-29 05:28:42,396 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116 to 116. [2023-11-29 05:28:42,397 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 116 states, 67 states have (on average 1.6417910447761195) internal successors, (110), 108 states have internal predecessors, (110), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2023-11-29 05:28:42,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116 states to 116 states and 120 transitions. [2023-11-29 05:28:42,399 INFO L78 Accepts]: Start accepts. Automaton has 116 states and 120 transitions. Word has length 14 [2023-11-29 05:28:42,399 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:28:42,399 INFO L495 AbstractCegarLoop]: Abstraction has 116 states and 120 transitions. [2023-11-29 05:28:42,400 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-29 05:28:42,400 INFO L276 IsEmpty]: Start isEmpty. Operand 116 states and 120 transitions. [2023-11-29 05:28:42,400 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2023-11-29 05:28:42,401 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:28:42,401 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 05:28:42,401 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-29 05:28:42,401 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2023-11-29 05:28:42,402 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:28:42,402 INFO L85 PathProgramCache]: Analyzing trace with hash -940276409, now seen corresponding path program 1 times [2023-11-29 05:28:42,402 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:28:42,402 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1232651128] [2023-11-29 05:28:42,403 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:28:42,403 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:28:42,416 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 05:28:42,416 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1872250934] [2023-11-29 05:28:42,417 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:28:42,417 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:28:42,417 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eddeddc0-fd7c-454d-a152-3b12d7ae0c1b/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:28:42,418 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eddeddc0-fd7c-454d-a152-3b12d7ae0c1b/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 05:28:42,428 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eddeddc0-fd7c-454d-a152-3b12d7ae0c1b/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-29 05:28:42,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:28:42,504 INFO L262 TraceCheckSpWp]: Trace formula consists of 49 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-29 05:28:42,510 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:28:42,601 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-29 05:28:42,601 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 05:28:42,601 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:28:42,601 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1232651128] [2023-11-29 05:28:42,602 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 05:28:42,602 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1872250934] [2023-11-29 05:28:42,602 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1872250934] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 05:28:42,602 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 05:28:42,602 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 05:28:42,603 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1697734949] [2023-11-29 05:28:42,603 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 05:28:42,603 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 05:28:42,603 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:28:42,604 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 05:28:42,604 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-29 05:28:42,604 INFO L87 Difference]: Start difference. First operand 116 states and 120 transitions. Second operand has 5 states, 4 states have (on average 3.5) internal successors, (14), 5 states have internal predecessors, (14), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-29 05:28:42,710 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:28:42,710 INFO L93 Difference]: Finished difference Result 116 states and 120 transitions. [2023-11-29 05:28:42,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-29 05:28:42,711 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.5) internal successors, (14), 5 states have internal predecessors, (14), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 18 [2023-11-29 05:28:42,712 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:28:42,713 INFO L225 Difference]: With dead ends: 116 [2023-11-29 05:28:42,713 INFO L226 Difference]: Without dead ends: 114 [2023-11-29 05:28:42,714 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-11-29 05:28:42,715 INFO L413 NwaCegarLoop]: 96 mSDtfsCounter, 97 mSDsluCounter, 190 mSDsCounter, 0 mSdLazyCounter, 77 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 100 SdHoareTripleChecker+Valid, 286 SdHoareTripleChecker+Invalid, 78 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 77 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 05:28:42,716 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [100 Valid, 286 Invalid, 78 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 77 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 05:28:42,717 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114 states. [2023-11-29 05:28:42,726 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114 to 114. [2023-11-29 05:28:42,727 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 114 states, 67 states have (on average 1.6119402985074627) internal successors, (108), 106 states have internal predecessors, (108), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2023-11-29 05:28:42,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 118 transitions. [2023-11-29 05:28:42,728 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 118 transitions. Word has length 18 [2023-11-29 05:28:42,729 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:28:42,729 INFO L495 AbstractCegarLoop]: Abstraction has 114 states and 118 transitions. [2023-11-29 05:28:42,729 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.5) internal successors, (14), 5 states have internal predecessors, (14), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-29 05:28:42,729 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 118 transitions. [2023-11-29 05:28:42,730 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2023-11-29 05:28:42,731 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:28:42,731 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 05:28:42,737 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eddeddc0-fd7c-454d-a152-3b12d7ae0c1b/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2023-11-29 05:28:42,936 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eddeddc0-fd7c-454d-a152-3b12d7ae0c1b/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:28:42,936 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2023-11-29 05:28:42,937 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:28:42,937 INFO L85 PathProgramCache]: Analyzing trace with hash 1891501742, now seen corresponding path program 1 times [2023-11-29 05:28:42,937 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:28:42,937 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1495782075] [2023-11-29 05:28:42,938 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:28:42,938 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:28:42,949 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 05:28:42,950 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [865929350] [2023-11-29 05:28:42,950 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:28:42,950 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:28:42,950 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eddeddc0-fd7c-454d-a152-3b12d7ae0c1b/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:28:42,951 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eddeddc0-fd7c-454d-a152-3b12d7ae0c1b/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 05:28:42,952 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eddeddc0-fd7c-454d-a152-3b12d7ae0c1b/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-29 05:28:43,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:28:43,006 INFO L262 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-29 05:28:43,009 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:28:43,129 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2023-11-29 05:28:43,130 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 05:28:43,198 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:28:43,199 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1495782075] [2023-11-29 05:28:43,199 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 05:28:43,199 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [865929350] [2023-11-29 05:28:43,199 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [865929350] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 05:28:43,199 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 05:28:43,199 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4] total 4 [2023-11-29 05:28:43,200 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1729377478] [2023-11-29 05:28:43,200 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 05:28:43,200 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 05:28:43,201 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:28:43,201 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 05:28:43,201 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-29 05:28:43,202 INFO L87 Difference]: Start difference. First operand 114 states and 118 transitions. Second operand has 5 states, 4 states have (on average 5.25) internal successors, (21), 5 states have internal predecessors, (21), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-29 05:28:43,289 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:28:43,289 INFO L93 Difference]: Finished difference Result 114 states and 118 transitions. [2023-11-29 05:28:43,290 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-29 05:28:43,290 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 5.25) internal successors, (21), 5 states have internal predecessors, (21), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) Word has length 35 [2023-11-29 05:28:43,291 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:28:43,292 INFO L225 Difference]: With dead ends: 114 [2023-11-29 05:28:43,292 INFO L226 Difference]: Without dead ends: 111 [2023-11-29 05:28:43,292 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2023-11-29 05:28:43,294 INFO L413 NwaCegarLoop]: 96 mSDtfsCounter, 87 mSDsluCounter, 190 mSDsCounter, 0 mSdLazyCounter, 66 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 88 SdHoareTripleChecker+Valid, 286 SdHoareTripleChecker+Invalid, 68 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 66 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 05:28:43,294 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [88 Valid, 286 Invalid, 68 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 66 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 05:28:43,295 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111 states. [2023-11-29 05:28:43,303 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111 to 111. [2023-11-29 05:28:43,304 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 111 states, 67 states have (on average 1.5671641791044777) internal successors, (105), 103 states have internal predecessors, (105), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2023-11-29 05:28:43,305 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 111 states and 115 transitions. [2023-11-29 05:28:43,305 INFO L78 Accepts]: Start accepts. Automaton has 111 states and 115 transitions. Word has length 35 [2023-11-29 05:28:43,306 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:28:43,306 INFO L495 AbstractCegarLoop]: Abstraction has 111 states and 115 transitions. [2023-11-29 05:28:43,306 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 5.25) internal successors, (21), 5 states have internal predecessors, (21), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-29 05:28:43,306 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 115 transitions. [2023-11-29 05:28:43,307 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2023-11-29 05:28:43,308 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:28:43,308 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 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] [2023-11-29 05:28:43,313 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eddeddc0-fd7c-454d-a152-3b12d7ae0c1b/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2023-11-29 05:28:43,512 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eddeddc0-fd7c-454d-a152-3b12d7ae0c1b/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:28:43,512 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2023-11-29 05:28:43,513 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:28:43,513 INFO L85 PathProgramCache]: Analyzing trace with hash -1492988077, now seen corresponding path program 1 times [2023-11-29 05:28:43,513 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:28:43,513 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [365183052] [2023-11-29 05:28:43,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:28:43,513 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:28:43,524 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 05:28:43,525 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [922350118] [2023-11-29 05:28:43,525 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:28:43,525 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:28:43,525 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eddeddc0-fd7c-454d-a152-3b12d7ae0c1b/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:28:43,526 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eddeddc0-fd7c-454d-a152-3b12d7ae0c1b/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 05:28:43,528 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eddeddc0-fd7c-454d-a152-3b12d7ae0c1b/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-29 05:28:43,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:28:43,569 INFO L262 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-29 05:28:43,571 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:28:43,688 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 6 proven. 3 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2023-11-29 05:28:43,688 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 05:28:43,834 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 6 proven. 3 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2023-11-29 05:28:43,834 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:28:43,834 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [365183052] [2023-11-29 05:28:43,834 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 05:28:43,834 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [922350118] [2023-11-29 05:28:43,835 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [922350118] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 05:28:43,835 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 05:28:43,835 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2023-11-29 05:28:43,835 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [799307487] [2023-11-29 05:28:43,835 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 05:28:43,836 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-29 05:28:43,836 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:28:43,837 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-29 05:28:43,837 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2023-11-29 05:28:43,837 INFO L87 Difference]: Start difference. First operand 111 states and 115 transitions. Second operand has 9 states, 8 states have (on average 4.875) internal successors, (39), 9 states have internal predecessors, (39), 5 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (7), 5 states have call predecessors, (7), 5 states have call successors, (7) [2023-11-29 05:28:43,954 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:28:43,954 INFO L93 Difference]: Finished difference Result 111 states and 115 transitions. [2023-11-29 05:28:43,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 05:28:43,955 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 4.875) internal successors, (39), 9 states have internal predecessors, (39), 5 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (7), 5 states have call predecessors, (7), 5 states have call successors, (7) Word has length 36 [2023-11-29 05:28:43,955 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:28:43,956 INFO L225 Difference]: With dead ends: 111 [2023-11-29 05:28:43,956 INFO L226 Difference]: Without dead ends: 110 [2023-11-29 05:28:43,957 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 63 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2023-11-29 05:28:43,958 INFO L413 NwaCegarLoop]: 84 mSDtfsCounter, 251 mSDsluCounter, 186 mSDsCounter, 0 mSdLazyCounter, 114 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 252 SdHoareTripleChecker+Valid, 270 SdHoareTripleChecker+Invalid, 116 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 114 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 05:28:43,958 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [252 Valid, 270 Invalid, 116 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 114 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 05:28:43,959 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110 states. [2023-11-29 05:28:43,967 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110 to 110. [2023-11-29 05:28:43,967 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 110 states, 67 states have (on average 1.5522388059701493) internal successors, (104), 102 states have internal predecessors, (104), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2023-11-29 05:28:43,968 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 110 states and 114 transitions. [2023-11-29 05:28:43,968 INFO L78 Accepts]: Start accepts. Automaton has 110 states and 114 transitions. Word has length 36 [2023-11-29 05:28:43,969 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:28:43,969 INFO L495 AbstractCegarLoop]: Abstraction has 110 states and 114 transitions. [2023-11-29 05:28:43,969 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 4.875) internal successors, (39), 9 states have internal predecessors, (39), 5 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (7), 5 states have call predecessors, (7), 5 states have call successors, (7) [2023-11-29 05:28:43,969 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 114 transitions. [2023-11-29 05:28:43,970 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2023-11-29 05:28:43,970 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:28:43,971 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 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] [2023-11-29 05:28:43,975 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eddeddc0-fd7c-454d-a152-3b12d7ae0c1b/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2023-11-29 05:28:44,172 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eddeddc0-fd7c-454d-a152-3b12d7ae0c1b/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:28:44,172 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2023-11-29 05:28:44,173 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:28:44,173 INFO L85 PathProgramCache]: Analyzing trace with hash -242462763, now seen corresponding path program 1 times [2023-11-29 05:28:44,173 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:28:44,173 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [450455906] [2023-11-29 05:28:44,173 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:28:44,173 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:28:44,183 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 05:28:44,184 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [703600008] [2023-11-29 05:28:44,184 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:28:44,184 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:28:44,184 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eddeddc0-fd7c-454d-a152-3b12d7ae0c1b/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:28:44,185 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eddeddc0-fd7c-454d-a152-3b12d7ae0c1b/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 05:28:44,188 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eddeddc0-fd7c-454d-a152-3b12d7ae0c1b/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-29 05:28:44,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:28:44,235 INFO L262 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-29 05:28:44,237 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:28:44,254 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-11-29 05:28:44,255 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 05:28:44,255 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:28:44,255 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [450455906] [2023-11-29 05:28:44,255 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 05:28:44,255 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [703600008] [2023-11-29 05:28:44,255 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [703600008] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 05:28:44,256 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 05:28:44,256 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 05:28:44,256 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [985678491] [2023-11-29 05:28:44,256 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 05:28:44,256 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 05:28:44,257 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:28:44,257 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 05:28:44,257 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 05:28:44,257 INFO L87 Difference]: Start difference. First operand 110 states and 114 transitions. Second operand has 3 states, 2 states have (on average 10.5) internal successors, (21), 3 states have internal predecessors, (21), 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) [2023-11-29 05:28:44,365 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:28:44,365 INFO L93 Difference]: Finished difference Result 182 states and 190 transitions. [2023-11-29 05:28:44,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 05:28:44,366 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 10.5) internal successors, (21), 3 states have internal predecessors, (21), 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 38 [2023-11-29 05:28:44,366 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:28:44,368 INFO L225 Difference]: With dead ends: 182 [2023-11-29 05:28:44,368 INFO L226 Difference]: Without dead ends: 180 [2023-11-29 05:28:44,368 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 05:28:44,369 INFO L413 NwaCegarLoop]: 93 mSDtfsCounter, 69 mSDsluCounter, 89 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 70 SdHoareTripleChecker+Valid, 182 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 05:28:44,370 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [70 Valid, 182 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 05:28:44,371 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 180 states. [2023-11-29 05:28:44,381 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 180 to 114. [2023-11-29 05:28:44,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 114 states, 71 states have (on average 1.5352112676056338) internal successors, (109), 106 states have internal predecessors, (109), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2023-11-29 05:28:44,383 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 119 transitions. [2023-11-29 05:28:44,383 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 119 transitions. Word has length 38 [2023-11-29 05:28:44,383 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:28:44,383 INFO L495 AbstractCegarLoop]: Abstraction has 114 states and 119 transitions. [2023-11-29 05:28:44,384 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 10.5) internal successors, (21), 3 states have internal predecessors, (21), 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) [2023-11-29 05:28:44,384 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 119 transitions. [2023-11-29 05:28:44,385 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2023-11-29 05:28:44,385 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:28:44,385 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 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] [2023-11-29 05:28:44,391 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eddeddc0-fd7c-454d-a152-3b12d7ae0c1b/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-11-29 05:28:44,591 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eddeddc0-fd7c-454d-a152-3b12d7ae0c1b/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:28:44,591 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2023-11-29 05:28:44,592 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:28:44,592 INFO L85 PathProgramCache]: Analyzing trace with hash 1073589017, now seen corresponding path program 1 times [2023-11-29 05:28:44,592 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:28:44,592 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1182897147] [2023-11-29 05:28:44,592 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:28:44,592 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:28:44,602 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 05:28:44,602 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [581347028] [2023-11-29 05:28:44,602 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:28:44,602 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:28:44,602 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eddeddc0-fd7c-454d-a152-3b12d7ae0c1b/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:28:44,603 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eddeddc0-fd7c-454d-a152-3b12d7ae0c1b/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 05:28:44,607 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eddeddc0-fd7c-454d-a152-3b12d7ae0c1b/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-11-29 05:28:44,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:28:44,648 INFO L262 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-29 05:28:44,650 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:28:46,719 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-11-29 05:28:46,719 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 05:28:46,719 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:28:46,719 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1182897147] [2023-11-29 05:28:46,720 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 05:28:46,720 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [581347028] [2023-11-29 05:28:46,720 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [581347028] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 05:28:46,720 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 05:28:46,720 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 05:28:46,720 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1377839782] [2023-11-29 05:28:46,720 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 05:28:46,721 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 05:28:46,721 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:28:46,721 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 05:28:46,721 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=6, Unknown=1, NotChecked=0, Total=12 [2023-11-29 05:28:46,722 INFO L87 Difference]: Start difference. First operand 114 states and 119 transitions. Second operand has 4 states, 3 states have (on average 7.333333333333333) internal successors, (22), 4 states have internal predecessors, (22), 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) [2023-11-29 05:28:48,559 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.83s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2023-11-29 05:28:51,771 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.51s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 05:28:54,702 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.93s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 05:28:56,804 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.27s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 05:29:01,674 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 05:29:04,109 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.43s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 05:29:05,570 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.46s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 05:29:09,573 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 05:29:10,817 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.24s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 05:29:14,820 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 05:29:19,426 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 05:29:20,743 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.32s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 05:29:22,734 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.99s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 05:29:24,056 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.32s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 05:29:28,870 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 05:29:30,790 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.92s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 05:29:32,830 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.30s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 05:29:34,407 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.58s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 05:29:38,411 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 05:29:42,415 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 05:29:44,019 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.60s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 05:29:48,023 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 05:29:52,031 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 05:29:54,027 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 05:29:55,314 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.28s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 05:29:56,354 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.04s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 05:30:01,080 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 05:30:05,084 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 05:30:09,087 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 05:30:13,095 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 05:30:14,968 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.87s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 05:30:18,972 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 05:30:23,712 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 05:30:27,720 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 05:30:31,724 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 05:30:34,470 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.24s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 05:30:35,786 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.32s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 05:30:36,958 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.17s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 05:30:37,996 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.04s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 05:30:39,500 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.49s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 05:30:43,502 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 05:30:47,514 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 05:30:51,520 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 05:30:53,552 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 05:30:56,705 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.15s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 05:31:00,714 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 05:31:02,139 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.42s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 05:31:06,146 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 05:31:07,458 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.31s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 05:31:11,463 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 05:31:15,769 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 05:31:19,775 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 05:31:21,000 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.22s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 05:31:22,218 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.22s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 05:31:24,142 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.22s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 05:31:28,145 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 05:31:32,152 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 05:31:34,083 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.93s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 05:31:38,087 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 05:31:40,206 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.27s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 05:31:44,211 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 05:31:48,214 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 05:31:48,219 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:31:48,219 INFO L93 Difference]: Finished difference Result 182 states and 188 transitions. [2023-11-29 05:31:48,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 05:31:48,220 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 7.333333333333333) internal successors, (22), 4 states have internal predecessors, (22), 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 39 [2023-11-29 05:31:48,220 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:31:48,221 INFO L225 Difference]: With dead ends: 182 [2023-11-29 05:31:48,221 INFO L226 Difference]: Without dead ends: 181 [2023-11-29 05:31:48,221 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=9, Invalid=10, Unknown=1, NotChecked=0, Total=20 [2023-11-29 05:31:48,222 INFO L413 NwaCegarLoop]: 80 mSDtfsCounter, 232 mSDsluCounter, 29 mSDsCounter, 0 mSdLazyCounter, 56 mSolverCounterSat, 5 mSolverCounterUnsat, 74 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 181.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 236 SdHoareTripleChecker+Valid, 109 SdHoareTripleChecker+Invalid, 135 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 56 IncrementalHoareTripleChecker+Invalid, 74 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 181.4s IncrementalHoareTripleChecker+Time [2023-11-29 05:31:48,222 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [236 Valid, 109 Invalid, 135 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 56 Invalid, 74 Unknown, 0 Unchecked, 181.4s Time] [2023-11-29 05:31:48,223 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 181 states. [2023-11-29 05:31:48,230 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 181 to 114. [2023-11-29 05:31:48,230 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 114 states, 71 states have (on average 1.5211267605633803) internal successors, (108), 106 states have internal predecessors, (108), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2023-11-29 05:31:48,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 118 transitions. [2023-11-29 05:31:48,231 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 118 transitions. Word has length 39 [2023-11-29 05:31:48,231 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:31:48,231 INFO L495 AbstractCegarLoop]: Abstraction has 114 states and 118 transitions. [2023-11-29 05:31:48,232 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 7.333333333333333) internal successors, (22), 4 states have internal predecessors, (22), 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) [2023-11-29 05:31:48,232 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 118 transitions. [2023-11-29 05:31:48,233 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2023-11-29 05:31:48,233 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:31:48,233 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 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] [2023-11-29 05:31:48,237 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eddeddc0-fd7c-454d-a152-3b12d7ae0c1b/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2023-11-29 05:31:48,433 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eddeddc0-fd7c-454d-a152-3b12d7ae0c1b/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:31:48,434 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2023-11-29 05:31:48,434 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:31:48,434 INFO L85 PathProgramCache]: Analyzing trace with hash 926896859, now seen corresponding path program 1 times [2023-11-29 05:31:48,434 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:31:48,434 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1858011675] [2023-11-29 05:31:48,434 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:31:48,434 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:31:48,443 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 05:31:48,443 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [972338860] [2023-11-29 05:31:48,444 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:31:48,444 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:31:48,444 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eddeddc0-fd7c-454d-a152-3b12d7ae0c1b/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:31:48,445 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eddeddc0-fd7c-454d-a152-3b12d7ae0c1b/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 05:31:48,446 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eddeddc0-fd7c-454d-a152-3b12d7ae0c1b/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-11-29 05:31:48,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:31:48,492 INFO L262 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-29 05:31:48,494 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:31:48,692 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 6 proven. 3 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2023-11-29 05:31:48,693 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 05:31:48,919 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:31:48,919 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1858011675] [2023-11-29 05:31:48,919 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 05:31:48,919 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [972338860] [2023-11-29 05:31:48,919 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [972338860] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 05:31:48,919 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 05:31:48,919 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2023-11-29 05:31:48,920 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1027261933] [2023-11-29 05:31:48,920 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 05:31:48,920 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-29 05:31:48,920 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:31:48,921 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-29 05:31:48,921 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=115, Unknown=0, NotChecked=0, Total=156 [2023-11-29 05:31:48,921 INFO L87 Difference]: Start difference. First operand 114 states and 118 transitions. Second operand has 8 states, 7 states have (on average 3.857142857142857) internal successors, (27), 8 states have internal predecessors, (27), 3 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2023-11-29 05:31:52,131 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 05:31:52,290 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:31:52,290 INFO L93 Difference]: Finished difference Result 181 states and 187 transitions. [2023-11-29 05:31:52,290 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-29 05:31:52,290 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.857142857142857) internal successors, (27), 8 states have internal predecessors, (27), 3 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Word has length 41 [2023-11-29 05:31:52,291 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:31:52,292 INFO L225 Difference]: With dead ends: 181 [2023-11-29 05:31:52,292 INFO L226 Difference]: Without dead ends: 180 [2023-11-29 05:31:52,292 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 65 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=56, Invalid=154, Unknown=0, NotChecked=0, Total=210 [2023-11-29 05:31:52,293 INFO L413 NwaCegarLoop]: 72 mSDtfsCounter, 367 mSDsluCounter, 203 mSDsCounter, 0 mSdLazyCounter, 182 mSolverCounterSat, 6 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 368 SdHoareTripleChecker+Valid, 275 SdHoareTripleChecker+Invalid, 191 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 182 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2023-11-29 05:31:52,293 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [368 Valid, 275 Invalid, 191 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 182 Invalid, 3 Unknown, 0 Unchecked, 3.3s Time] [2023-11-29 05:31:52,294 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 180 states. [2023-11-29 05:31:52,300 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 180 to 115. [2023-11-29 05:31:52,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 115 states, 72 states have (on average 1.5138888888888888) internal successors, (109), 107 states have internal predecessors, (109), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2023-11-29 05:31:52,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 119 transitions. [2023-11-29 05:31:52,302 INFO L78 Accepts]: Start accepts. Automaton has 115 states and 119 transitions. Word has length 41 [2023-11-29 05:31:52,302 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:31:52,302 INFO L495 AbstractCegarLoop]: Abstraction has 115 states and 119 transitions. [2023-11-29 05:31:52,302 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.857142857142857) internal successors, (27), 8 states have internal predecessors, (27), 3 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2023-11-29 05:31:52,303 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 119 transitions. [2023-11-29 05:31:52,304 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2023-11-29 05:31:52,304 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:31:52,304 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 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] [2023-11-29 05:31:52,309 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eddeddc0-fd7c-454d-a152-3b12d7ae0c1b/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2023-11-29 05:31:52,508 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eddeddc0-fd7c-454d-a152-3b12d7ae0c1b/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:31:52,508 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2023-11-29 05:31:52,509 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:31:52,509 INFO L85 PathProgramCache]: Analyzing trace with hash 1689653917, now seen corresponding path program 1 times [2023-11-29 05:31:52,509 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:31:52,509 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1531912617] [2023-11-29 05:31:52,509 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:31:52,509 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:31:52,517 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 05:31:52,517 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [919485449] [2023-11-29 05:31:52,518 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:31:52,518 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:31:52,518 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eddeddc0-fd7c-454d-a152-3b12d7ae0c1b/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:31:52,519 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eddeddc0-fd7c-454d-a152-3b12d7ae0c1b/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 05:31:52,531 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eddeddc0-fd7c-454d-a152-3b12d7ae0c1b/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-11-29 05:31:52,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:31:52,575 INFO L262 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-29 05:31:52,577 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:31:52,763 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 3 proven. 6 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2023-11-29 05:31:52,763 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 05:31:52,898 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 3 proven. 6 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2023-11-29 05:31:52,898 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:31:52,899 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1531912617] [2023-11-29 05:31:52,899 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 05:31:52,899 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [919485449] [2023-11-29 05:31:52,899 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [919485449] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 05:31:52,899 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 05:31:52,899 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2023-11-29 05:31:52,899 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2129834506] [2023-11-29 05:31:52,900 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 05:31:52,900 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-29 05:31:52,900 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:31:52,901 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-29 05:31:52,901 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2023-11-29 05:31:52,902 INFO L87 Difference]: Start difference. First operand 115 states and 119 transitions. Second operand has 9 states, 8 states have (on average 6.5) internal successors, (52), 9 states have internal predecessors, (52), 3 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2023-11-29 05:31:53,218 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:31:53,219 INFO L93 Difference]: Finished difference Result 199 states and 215 transitions. [2023-11-29 05:31:53,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-29 05:31:53,219 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 6.5) internal successors, (52), 9 states have internal predecessors, (52), 3 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 43 [2023-11-29 05:31:53,219 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:31:53,221 INFO L225 Difference]: With dead ends: 199 [2023-11-29 05:31:53,221 INFO L226 Difference]: Without dead ends: 184 [2023-11-29 05:31:53,221 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 77 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132 [2023-11-29 05:31:53,222 INFO L413 NwaCegarLoop]: 54 mSDtfsCounter, 491 mSDsluCounter, 115 mSDsCounter, 0 mSdLazyCounter, 172 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 491 SdHoareTripleChecker+Valid, 169 SdHoareTripleChecker+Invalid, 203 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 172 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-29 05:31:53,222 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [491 Valid, 169 Invalid, 203 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 172 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-29 05:31:53,223 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 184 states. [2023-11-29 05:31:53,231 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 184 to 158. [2023-11-29 05:31:53,232 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 158 states, 123 states have (on average 1.4471544715447155) internal successors, (178), 149 states have internal predecessors, (178), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2023-11-29 05:31:53,233 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 158 states to 158 states and 190 transitions. [2023-11-29 05:31:53,233 INFO L78 Accepts]: Start accepts. Automaton has 158 states and 190 transitions. Word has length 43 [2023-11-29 05:31:53,233 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:31:53,233 INFO L495 AbstractCegarLoop]: Abstraction has 158 states and 190 transitions. [2023-11-29 05:31:53,233 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 6.5) internal successors, (52), 9 states have internal predecessors, (52), 3 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2023-11-29 05:31:53,233 INFO L276 IsEmpty]: Start isEmpty. Operand 158 states and 190 transitions. [2023-11-29 05:31:53,234 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2023-11-29 05:31:53,234 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:31:53,234 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 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] [2023-11-29 05:31:53,239 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eddeddc0-fd7c-454d-a152-3b12d7ae0c1b/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2023-11-29 05:31:53,435 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eddeddc0-fd7c-454d-a152-3b12d7ae0c1b/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2023-11-29 05:31:53,435 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2023-11-29 05:31:53,436 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:31:53,436 INFO L85 PathProgramCache]: Analyzing trace with hash 259779167, now seen corresponding path program 1 times [2023-11-29 05:31:53,436 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:31:53,436 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1326914146] [2023-11-29 05:31:53,436 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:31:53,436 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:31:53,445 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 05:31:53,445 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1750028743] [2023-11-29 05:31:53,445 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:31:53,445 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:31:53,445 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eddeddc0-fd7c-454d-a152-3b12d7ae0c1b/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:31:53,447 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eddeddc0-fd7c-454d-a152-3b12d7ae0c1b/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 05:31:53,449 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eddeddc0-fd7c-454d-a152-3b12d7ae0c1b/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-11-29 05:31:53,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:31:53,496 INFO L262 TraceCheckSpWp]: Trace formula consists of 90 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-29 05:31:53,498 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:31:53,519 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-11-29 05:31:53,519 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 05:31:53,519 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:31:53,520 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1326914146] [2023-11-29 05:31:53,520 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 05:31:53,520 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1750028743] [2023-11-29 05:31:53,520 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1750028743] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 05:31:53,520 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 05:31:53,520 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 05:31:53,520 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2052661420] [2023-11-29 05:31:53,521 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 05:31:53,521 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 05:31:53,521 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:31:53,522 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 05:31:53,522 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 05:31:53,522 INFO L87 Difference]: Start difference. First operand 158 states and 190 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, (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) [2023-11-29 05:31:53,638 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:31:53,638 INFO L93 Difference]: Finished difference Result 278 states and 336 transitions. [2023-11-29 05:31:53,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 05:31:53,639 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, (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 45 [2023-11-29 05:31:53,639 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:31:53,641 INFO L225 Difference]: With dead ends: 278 [2023-11-29 05:31:53,641 INFO L226 Difference]: Without dead ends: 249 [2023-11-29 05:31:53,642 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 05:31:53,642 INFO L413 NwaCegarLoop]: 75 mSDtfsCounter, 50 mSDsluCounter, 56 mSDsCounter, 0 mSdLazyCounter, 74 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 131 SdHoareTripleChecker+Invalid, 87 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 74 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 05:31:53,643 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [51 Valid, 131 Invalid, 87 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 74 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 05:31:53,644 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 249 states. [2023-11-29 05:31:53,658 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 249 to 235. [2023-11-29 05:31:53,659 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 235 states, 198 states have (on average 1.393939393939394) internal successors, (276), 224 states have internal predecessors, (276), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2023-11-29 05:31:53,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 235 states to 235 states and 292 transitions. [2023-11-29 05:31:53,660 INFO L78 Accepts]: Start accepts. Automaton has 235 states and 292 transitions. Word has length 45 [2023-11-29 05:31:53,661 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:31:53,661 INFO L495 AbstractCegarLoop]: Abstraction has 235 states and 292 transitions. [2023-11-29 05:31:53,661 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, (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) [2023-11-29 05:31:53,661 INFO L276 IsEmpty]: Start isEmpty. Operand 235 states and 292 transitions. [2023-11-29 05:31:53,662 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2023-11-29 05:31:53,662 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:31:53,663 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 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] [2023-11-29 05:31:53,668 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eddeddc0-fd7c-454d-a152-3b12d7ae0c1b/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2023-11-29 05:31:53,868 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eddeddc0-fd7c-454d-a152-3b12d7ae0c1b/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2023-11-29 05:31:53,869 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr36ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2023-11-29 05:31:53,869 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:31:53,870 INFO L85 PathProgramCache]: Analyzing trace with hash 1625504061, now seen corresponding path program 1 times [2023-11-29 05:31:53,870 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:31:53,870 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1903755171] [2023-11-29 05:31:53,870 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:31:53,871 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:31:53,893 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 05:31:53,893 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [601416466] [2023-11-29 05:31:53,893 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:31:53,894 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:31:53,895 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eddeddc0-fd7c-454d-a152-3b12d7ae0c1b/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:31:53,897 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eddeddc0-fd7c-454d-a152-3b12d7ae0c1b/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 05:31:53,912 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eddeddc0-fd7c-454d-a152-3b12d7ae0c1b/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-11-29 05:31:54,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:31:54,035 INFO L262 TraceCheckSpWp]: Trace formula consists of 112 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-29 05:31:54,038 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:31:54,226 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-11-29 05:31:54,227 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 05:31:54,227 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:31:54,227 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1903755171] [2023-11-29 05:31:54,227 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 05:31:54,227 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [601416466] [2023-11-29 05:31:54,227 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [601416466] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 05:31:54,227 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 05:31:54,227 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-29 05:31:54,228 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1858260559] [2023-11-29 05:31:54,228 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 05:31:54,228 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 05:31:54,228 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:31:54,229 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 05:31:54,229 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-11-29 05:31:54,229 INFO L87 Difference]: Start difference. First operand 235 states and 292 transitions. Second operand has 6 states, 5 states have (on average 8.8) internal successors, (44), 6 states have internal predecessors, (44), 3 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2023-11-29 05:31:54,378 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:31:54,378 INFO L93 Difference]: Finished difference Result 235 states and 292 transitions. [2023-11-29 05:31:54,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 05:31:54,379 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 8.8) internal successors, (44), 6 states have internal predecessors, (44), 3 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) Word has length 63 [2023-11-29 05:31:54,379 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:31:54,381 INFO L225 Difference]: With dead ends: 235 [2023-11-29 05:31:54,381 INFO L226 Difference]: Without dead ends: 234 [2023-11-29 05:31:54,382 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2023-11-29 05:31:54,383 INFO L413 NwaCegarLoop]: 36 mSDtfsCounter, 193 mSDsluCounter, 55 mSDsCounter, 0 mSdLazyCounter, 106 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 193 SdHoareTripleChecker+Valid, 91 SdHoareTripleChecker+Invalid, 111 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 106 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 05:31:54,383 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [193 Valid, 91 Invalid, 111 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 106 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 05:31:54,384 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 234 states. [2023-11-29 05:31:54,400 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 234 to 234. [2023-11-29 05:31:54,400 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 234 states, 198 states have (on average 1.3737373737373737) internal successors, (272), 223 states have internal predecessors, (272), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2023-11-29 05:31:54,402 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 234 states to 234 states and 288 transitions. [2023-11-29 05:31:54,402 INFO L78 Accepts]: Start accepts. Automaton has 234 states and 288 transitions. Word has length 63 [2023-11-29 05:31:54,402 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:31:54,403 INFO L495 AbstractCegarLoop]: Abstraction has 234 states and 288 transitions. [2023-11-29 05:31:54,403 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 8.8) internal successors, (44), 6 states have internal predecessors, (44), 3 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2023-11-29 05:31:54,403 INFO L276 IsEmpty]: Start isEmpty. Operand 234 states and 288 transitions. [2023-11-29 05:31:54,404 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2023-11-29 05:31:54,404 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:31:54,405 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 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] [2023-11-29 05:31:54,410 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eddeddc0-fd7c-454d-a152-3b12d7ae0c1b/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2023-11-29 05:31:54,610 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eddeddc0-fd7c-454d-a152-3b12d7ae0c1b/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2023-11-29 05:31:54,610 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr32ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2023-11-29 05:31:54,611 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:31:54,611 INFO L85 PathProgramCache]: Analyzing trace with hash 1625503741, now seen corresponding path program 1 times [2023-11-29 05:31:54,611 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:31:54,611 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [239257810] [2023-11-29 05:31:54,611 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:31:54,611 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:31:54,621 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 05:31:54,621 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [737751904] [2023-11-29 05:31:54,622 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:31:54,622 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:31:54,622 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eddeddc0-fd7c-454d-a152-3b12d7ae0c1b/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:31:54,623 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eddeddc0-fd7c-454d-a152-3b12d7ae0c1b/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 05:31:54,627 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eddeddc0-fd7c-454d-a152-3b12d7ae0c1b/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2023-11-29 05:31:54,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:31:54,678 INFO L262 TraceCheckSpWp]: Trace formula consists of 112 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-29 05:31:54,680 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:31:54,728 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-11-29 05:31:54,728 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 05:31:54,728 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:31:54,728 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [239257810] [2023-11-29 05:31:54,728 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 05:31:54,728 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [737751904] [2023-11-29 05:31:54,728 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [737751904] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 05:31:54,729 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 05:31:54,729 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 05:31:54,729 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1934013608] [2023-11-29 05:31:54,729 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 05:31:54,729 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 05:31:54,729 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:31:54,730 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 05:31:54,730 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-29 05:31:54,730 INFO L87 Difference]: Start difference. First operand 234 states and 288 transitions. Second operand has 4 states, 3 states have (on average 14.666666666666666) internal successors, (44), 4 states have internal predecessors, (44), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-11-29 05:31:54,884 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:31:54,884 INFO L93 Difference]: Finished difference Result 247 states and 289 transitions. [2023-11-29 05:31:54,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 05:31:54,885 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 14.666666666666666) internal successors, (44), 4 states have internal predecessors, (44), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 63 [2023-11-29 05:31:54,885 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:31:54,887 INFO L225 Difference]: With dead ends: 247 [2023-11-29 05:31:54,887 INFO L226 Difference]: Without dead ends: 246 [2023-11-29 05:31:54,887 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 60 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-29 05:31:54,888 INFO L413 NwaCegarLoop]: 90 mSDtfsCounter, 35 mSDsluCounter, 103 mSDsCounter, 0 mSdLazyCounter, 141 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 193 SdHoareTripleChecker+Invalid, 144 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 141 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 05:31:54,888 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [35 Valid, 193 Invalid, 144 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 141 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 05:31:54,889 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 246 states. [2023-11-29 05:31:54,902 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 246 to 234. [2023-11-29 05:31:54,903 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 234 states, 198 states have (on average 1.3636363636363635) internal successors, (270), 223 states have internal predecessors, (270), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2023-11-29 05:31:54,905 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 234 states to 234 states and 286 transitions. [2023-11-29 05:31:54,905 INFO L78 Accepts]: Start accepts. Automaton has 234 states and 286 transitions. Word has length 63 [2023-11-29 05:31:54,905 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:31:54,905 INFO L495 AbstractCegarLoop]: Abstraction has 234 states and 286 transitions. [2023-11-29 05:31:54,906 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 14.666666666666666) internal successors, (44), 4 states have internal predecessors, (44), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-11-29 05:31:54,906 INFO L276 IsEmpty]: Start isEmpty. Operand 234 states and 286 transitions. [2023-11-29 05:31:54,907 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2023-11-29 05:31:54,907 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:31:54,907 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 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] [2023-11-29 05:31:54,912 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eddeddc0-fd7c-454d-a152-3b12d7ae0c1b/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2023-11-29 05:31:55,111 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eddeddc0-fd7c-454d-a152-3b12d7ae0c1b/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2023-11-29 05:31:55,111 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr37ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2023-11-29 05:31:55,112 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:31:55,112 INFO L85 PathProgramCache]: Analyzing trace with hash -1148981528, now seen corresponding path program 1 times [2023-11-29 05:31:55,112 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:31:55,112 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1814906968] [2023-11-29 05:31:55,112 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:31:55,112 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:31:55,121 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 05:31:55,121 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1985122378] [2023-11-29 05:31:55,121 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:31:55,122 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:31:55,122 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eddeddc0-fd7c-454d-a152-3b12d7ae0c1b/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:31:55,123 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eddeddc0-fd7c-454d-a152-3b12d7ae0c1b/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 05:31:55,124 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eddeddc0-fd7c-454d-a152-3b12d7ae0c1b/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2023-11-29 05:31:55,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:31:55,174 INFO L262 TraceCheckSpWp]: Trace formula consists of 113 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 05:31:55,176 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:31:55,244 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-11-29 05:31:55,244 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 05:31:55,244 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:31:55,245 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1814906968] [2023-11-29 05:31:55,245 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 05:31:55,245 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1985122378] [2023-11-29 05:31:55,245 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1985122378] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 05:31:55,245 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 05:31:55,245 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 05:31:55,245 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1616974565] [2023-11-29 05:31:55,245 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 05:31:55,246 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 05:31:55,246 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:31:55,246 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 05:31:55,247 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-29 05:31:55,247 INFO L87 Difference]: Start difference. First operand 234 states and 286 transitions. Second operand has 5 states, 4 states have (on average 11.25) internal successors, (45), 5 states have internal predecessors, (45), 3 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2023-11-29 05:31:55,364 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:31:55,364 INFO L93 Difference]: Finished difference Result 245 states and 297 transitions. [2023-11-29 05:31:55,365 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-29 05:31:55,365 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 11.25) internal successors, (45), 5 states have internal predecessors, (45), 3 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) Word has length 64 [2023-11-29 05:31:55,365 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:31:55,367 INFO L225 Difference]: With dead ends: 245 [2023-11-29 05:31:55,367 INFO L226 Difference]: Without dead ends: 244 [2023-11-29 05:31:55,368 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 60 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2023-11-29 05:31:55,369 INFO L413 NwaCegarLoop]: 59 mSDtfsCounter, 153 mSDsluCounter, 49 mSDsCounter, 0 mSdLazyCounter, 99 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 153 SdHoareTripleChecker+Valid, 108 SdHoareTripleChecker+Invalid, 102 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 99 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 05:31:55,369 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [153 Valid, 108 Invalid, 102 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 99 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 05:31:55,370 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 244 states. [2023-11-29 05:31:55,383 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 244 to 233. [2023-11-29 05:31:55,384 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 233 states, 198 states have (on average 1.3434343434343434) internal successors, (266), 222 states have internal predecessors, (266), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2023-11-29 05:31:55,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 233 states to 233 states and 282 transitions. [2023-11-29 05:31:55,386 INFO L78 Accepts]: Start accepts. Automaton has 233 states and 282 transitions. Word has length 64 [2023-11-29 05:31:55,386 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:31:55,386 INFO L495 AbstractCegarLoop]: Abstraction has 233 states and 282 transitions. [2023-11-29 05:31:55,386 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 11.25) internal successors, (45), 5 states have internal predecessors, (45), 3 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2023-11-29 05:31:55,386 INFO L276 IsEmpty]: Start isEmpty. Operand 233 states and 282 transitions. [2023-11-29 05:31:55,387 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2023-11-29 05:31:55,387 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:31:55,387 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 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] [2023-11-29 05:31:55,393 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eddeddc0-fd7c-454d-a152-3b12d7ae0c1b/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2023-11-29 05:31:55,588 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eddeddc0-fd7c-454d-a152-3b12d7ae0c1b/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:31:55,588 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2023-11-29 05:31:55,588 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:31:55,589 INFO L85 PathProgramCache]: Analyzing trace with hash -1148991458, now seen corresponding path program 1 times [2023-11-29 05:31:55,589 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:31:55,589 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1313200345] [2023-11-29 05:31:55,589 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:31:55,589 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:31:55,596 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 05:31:55,596 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1616409372] [2023-11-29 05:31:55,596 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:31:55,596 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:31:55,596 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eddeddc0-fd7c-454d-a152-3b12d7ae0c1b/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:31:55,597 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eddeddc0-fd7c-454d-a152-3b12d7ae0c1b/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 05:31:55,598 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eddeddc0-fd7c-454d-a152-3b12d7ae0c1b/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2023-11-29 05:31:55,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:31:55,639 INFO L262 TraceCheckSpWp]: Trace formula consists of 113 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 05:31:55,641 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:31:55,717 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-11-29 05:31:55,717 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 05:31:55,717 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:31:55,717 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1313200345] [2023-11-29 05:31:55,718 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 05:31:55,718 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1616409372] [2023-11-29 05:31:55,718 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1616409372] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 05:31:55,718 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 05:31:55,718 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 05:31:55,718 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [143008670] [2023-11-29 05:31:55,718 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 05:31:55,719 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 05:31:55,719 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:31:55,719 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 05:31:55,720 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-29 05:31:55,720 INFO L87 Difference]: Start difference. First operand 233 states and 282 transitions. Second operand has 4 states, 3 states have (on average 15.0) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-11-29 05:31:55,816 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:31:55,816 INFO L93 Difference]: Finished difference Result 233 states and 282 transitions. [2023-11-29 05:31:55,816 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 05:31:55,817 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 15.0) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 64 [2023-11-29 05:31:55,817 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:31:55,818 INFO L225 Difference]: With dead ends: 233 [2023-11-29 05:31:55,818 INFO L226 Difference]: Without dead ends: 229 [2023-11-29 05:31:55,819 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 61 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-29 05:31:55,819 INFO L413 NwaCegarLoop]: 45 mSDtfsCounter, 86 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 56 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 86 SdHoareTripleChecker+Valid, 73 SdHoareTripleChecker+Invalid, 63 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 56 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 05:31:55,820 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [86 Valid, 73 Invalid, 63 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 56 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 05:31:55,821 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 229 states. [2023-11-29 05:31:55,834 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 229 to 229. [2023-11-29 05:31:55,835 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 229 states, 198 states have (on average 1.292929292929293) internal successors, (256), 218 states have internal predecessors, (256), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2023-11-29 05:31:55,837 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 229 states to 229 states and 272 transitions. [2023-11-29 05:31:55,837 INFO L78 Accepts]: Start accepts. Automaton has 229 states and 272 transitions. Word has length 64 [2023-11-29 05:31:55,837 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:31:55,837 INFO L495 AbstractCegarLoop]: Abstraction has 229 states and 272 transitions. [2023-11-29 05:31:55,837 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 15.0) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-11-29 05:31:55,838 INFO L276 IsEmpty]: Start isEmpty. Operand 229 states and 272 transitions. [2023-11-29 05:31:55,838 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2023-11-29 05:31:55,838 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:31:55,838 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 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] [2023-11-29 05:31:55,844 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eddeddc0-fd7c-454d-a152-3b12d7ae0c1b/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2023-11-29 05:31:56,039 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14,13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eddeddc0-fd7c-454d-a152-3b12d7ae0c1b/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:31:56,039 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2023-11-29 05:31:56,039 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:31:56,040 INFO L85 PathProgramCache]: Analyzing trace with hash 1759618188, now seen corresponding path program 1 times [2023-11-29 05:31:56,040 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:31:56,040 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1235430810] [2023-11-29 05:31:56,040 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:31:56,040 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:31:56,048 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 05:31:56,048 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1168500346] [2023-11-29 05:31:56,049 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:31:56,049 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:31:56,049 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eddeddc0-fd7c-454d-a152-3b12d7ae0c1b/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:31:56,050 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eddeddc0-fd7c-454d-a152-3b12d7ae0c1b/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 05:31:56,051 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eddeddc0-fd7c-454d-a152-3b12d7ae0c1b/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2023-11-29 05:31:56,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:31:56,098 INFO L262 TraceCheckSpWp]: Trace formula consists of 121 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-29 05:31:56,100 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:31:56,242 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-11-29 05:31:56,242 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 05:31:56,355 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-11-29 05:31:56,356 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:31:56,356 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1235430810] [2023-11-29 05:31:56,356 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 05:31:56,356 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1168500346] [2023-11-29 05:31:56,356 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1168500346] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 05:31:56,356 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 05:31:56,356 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 9 [2023-11-29 05:31:56,356 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1237528496] [2023-11-29 05:31:56,357 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 05:31:56,357 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-29 05:31:56,357 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:31:56,358 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-29 05:31:56,358 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2023-11-29 05:31:56,358 INFO L87 Difference]: Start difference. First operand 229 states and 272 transitions. Second operand has 10 states, 9 states have (on average 10.11111111111111) internal successors, (91), 10 states have internal predecessors, (91), 5 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 5 states have call predecessors, (9), 5 states have call successors, (9) [2023-11-29 05:31:56,553 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:31:56,553 INFO L93 Difference]: Finished difference Result 235 states and 279 transitions. [2023-11-29 05:31:56,554 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-29 05:31:56,554 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 10.11111111111111) internal successors, (91), 10 states have internal predecessors, (91), 5 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 5 states have call predecessors, (9), 5 states have call successors, (9) Word has length 68 [2023-11-29 05:31:56,554 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:31:56,556 INFO L225 Difference]: With dead ends: 235 [2023-11-29 05:31:56,556 INFO L226 Difference]: Without dead ends: 234 [2023-11-29 05:31:56,557 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 138 GetRequests, 126 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2023-11-29 05:31:56,557 INFO L413 NwaCegarLoop]: 34 mSDtfsCounter, 233 mSDsluCounter, 88 mSDsCounter, 0 mSdLazyCounter, 136 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 233 SdHoareTripleChecker+Valid, 122 SdHoareTripleChecker+Invalid, 146 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 136 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 05:31:56,557 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [233 Valid, 122 Invalid, 146 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 136 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 05:31:56,558 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 234 states. [2023-11-29 05:31:56,573 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 234 to 231. [2023-11-29 05:31:56,573 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 231 states, 200 states have (on average 1.275) internal successors, (255), 220 states have internal predecessors, (255), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2023-11-29 05:31:56,575 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 231 states to 231 states and 271 transitions. [2023-11-29 05:31:56,575 INFO L78 Accepts]: Start accepts. Automaton has 231 states and 271 transitions. Word has length 68 [2023-11-29 05:31:56,575 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:31:56,576 INFO L495 AbstractCegarLoop]: Abstraction has 231 states and 271 transitions. [2023-11-29 05:31:56,576 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 10.11111111111111) internal successors, (91), 10 states have internal predecessors, (91), 5 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 5 states have call predecessors, (9), 5 states have call successors, (9) [2023-11-29 05:31:56,576 INFO L276 IsEmpty]: Start isEmpty. Operand 231 states and 271 transitions. [2023-11-29 05:31:56,577 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2023-11-29 05:31:56,577 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:31:56,577 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 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] [2023-11-29 05:31:56,583 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eddeddc0-fd7c-454d-a152-3b12d7ae0c1b/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2023-11-29 05:31:56,780 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eddeddc0-fd7c-454d-a152-3b12d7ae0c1b/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2023-11-29 05:31:56,780 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2023-11-29 05:31:56,781 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:31:56,781 INFO L85 PathProgramCache]: Analyzing trace with hash 1178681730, now seen corresponding path program 1 times [2023-11-29 05:31:56,781 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:31:56,781 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [540022745] [2023-11-29 05:31:56,782 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:31:56,782 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:31:56,789 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 05:31:56,790 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1011794960] [2023-11-29 05:31:56,790 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:31:56,790 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:31:56,790 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eddeddc0-fd7c-454d-a152-3b12d7ae0c1b/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:31:56,792 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eddeddc0-fd7c-454d-a152-3b12d7ae0c1b/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 05:31:56,793 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eddeddc0-fd7c-454d-a152-3b12d7ae0c1b/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2023-11-29 05:31:56,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:31:56,844 INFO L262 TraceCheckSpWp]: Trace formula consists of 121 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-29 05:31:56,845 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:31:57,008 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-11-29 05:31:57,008 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 05:31:57,116 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-11-29 05:31:57,117 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:31:57,117 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [540022745] [2023-11-29 05:31:57,117 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 05:31:57,117 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1011794960] [2023-11-29 05:31:57,117 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1011794960] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 05:31:57,118 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 05:31:57,118 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 9 [2023-11-29 05:31:57,118 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1303230078] [2023-11-29 05:31:57,118 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 05:31:57,119 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-29 05:31:57,119 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:31:57,120 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-29 05:31:57,120 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2023-11-29 05:31:57,120 INFO L87 Difference]: Start difference. First operand 231 states and 271 transitions. Second operand has 10 states, 9 states have (on average 10.222222222222221) internal successors, (92), 10 states have internal predecessors, (92), 4 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 4 states have call predecessors, (10), 4 states have call successors, (10) [2023-11-29 05:31:57,554 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:31:57,554 INFO L93 Difference]: Finished difference Result 322 states and 371 transitions. [2023-11-29 05:31:57,555 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-29 05:31:57,555 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 10.222222222222221) internal successors, (92), 10 states have internal predecessors, (92), 4 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 4 states have call predecessors, (10), 4 states have call successors, (10) Word has length 68 [2023-11-29 05:31:57,555 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:31:57,557 INFO L225 Difference]: With dead ends: 322 [2023-11-29 05:31:57,557 INFO L226 Difference]: Without dead ends: 320 [2023-11-29 05:31:57,557 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 142 GetRequests, 126 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=119, Invalid=187, Unknown=0, NotChecked=0, Total=306 [2023-11-29 05:31:57,558 INFO L413 NwaCegarLoop]: 48 mSDtfsCounter, 458 mSDsluCounter, 181 mSDsCounter, 0 mSdLazyCounter, 295 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 458 SdHoareTripleChecker+Valid, 229 SdHoareTripleChecker+Invalid, 317 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 295 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-29 05:31:57,558 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [458 Valid, 229 Invalid, 317 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 295 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-29 05:31:57,559 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 320 states. [2023-11-29 05:31:57,572 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 320 to 236. [2023-11-29 05:31:57,572 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 236 states, 206 states have (on average 1.266990291262136) internal successors, (261), 225 states have internal predecessors, (261), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2023-11-29 05:31:57,573 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 236 states to 236 states and 277 transitions. [2023-11-29 05:31:57,573 INFO L78 Accepts]: Start accepts. Automaton has 236 states and 277 transitions. Word has length 68 [2023-11-29 05:31:57,574 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:31:57,574 INFO L495 AbstractCegarLoop]: Abstraction has 236 states and 277 transitions. [2023-11-29 05:31:57,574 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 10.222222222222221) internal successors, (92), 10 states have internal predecessors, (92), 4 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 4 states have call predecessors, (10), 4 states have call successors, (10) [2023-11-29 05:31:57,574 INFO L276 IsEmpty]: Start isEmpty. Operand 236 states and 277 transitions. [2023-11-29 05:31:57,575 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2023-11-29 05:31:57,575 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:31:57,575 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 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] [2023-11-29 05:31:57,579 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eddeddc0-fd7c-454d-a152-3b12d7ae0c1b/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2023-11-29 05:31:57,775 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16,15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eddeddc0-fd7c-454d-a152-3b12d7ae0c1b/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:31:57,776 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2023-11-29 05:31:57,776 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:31:57,776 INFO L85 PathProgramCache]: Analyzing trace with hash -1286410942, now seen corresponding path program 1 times [2023-11-29 05:31:57,776 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:31:57,776 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [891936648] [2023-11-29 05:31:57,776 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:31:57,776 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:31:57,782 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 05:31:57,783 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [561691165] [2023-11-29 05:31:57,783 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:31:57,783 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:31:57,783 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eddeddc0-fd7c-454d-a152-3b12d7ae0c1b/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:31:57,784 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eddeddc0-fd7c-454d-a152-3b12d7ae0c1b/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 05:31:57,786 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eddeddc0-fd7c-454d-a152-3b12d7ae0c1b/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2023-11-29 05:31:57,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:31:57,827 INFO L262 TraceCheckSpWp]: Trace formula consists of 122 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-29 05:31:57,829 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:31:58,008 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-11-29 05:31:58,008 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 05:31:58,136 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-11-29 05:31:58,136 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:31:58,136 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [891936648] [2023-11-29 05:31:58,136 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 05:31:58,136 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [561691165] [2023-11-29 05:31:58,137 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [561691165] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 05:31:58,137 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 05:31:58,137 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 11 [2023-11-29 05:31:58,137 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1059303949] [2023-11-29 05:31:58,137 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 05:31:58,138 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-29 05:31:58,138 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:31:58,138 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-29 05:31:58,139 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=94, Unknown=0, NotChecked=0, Total=132 [2023-11-29 05:31:58,139 INFO L87 Difference]: Start difference. First operand 236 states and 277 transitions. Second operand has 12 states, 11 states have (on average 8.545454545454545) internal successors, (94), 12 states have internal predecessors, (94), 6 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 6 states have call predecessors, (10), 6 states have call successors, (10) [2023-11-29 05:31:58,452 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:31:58,452 INFO L93 Difference]: Finished difference Result 271 states and 315 transitions. [2023-11-29 05:31:58,452 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-29 05:31:58,453 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 8.545454545454545) internal successors, (94), 12 states have internal predecessors, (94), 6 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 6 states have call predecessors, (10), 6 states have call successors, (10) Word has length 69 [2023-11-29 05:31:58,453 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:31:58,454 INFO L225 Difference]: With dead ends: 271 [2023-11-29 05:31:58,455 INFO L226 Difference]: Without dead ends: 269 [2023-11-29 05:31:58,455 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 142 GetRequests, 126 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=110, Invalid=196, Unknown=0, NotChecked=0, Total=306 [2023-11-29 05:31:58,456 INFO L413 NwaCegarLoop]: 42 mSDtfsCounter, 231 mSDsluCounter, 133 mSDsCounter, 0 mSdLazyCounter, 279 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 231 SdHoareTripleChecker+Valid, 175 SdHoareTripleChecker+Invalid, 292 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 279 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 05:31:58,456 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [231 Valid, 175 Invalid, 292 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 279 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 05:31:58,457 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 269 states. [2023-11-29 05:31:58,484 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 269 to 241. [2023-11-29 05:31:58,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 241 states, 211 states have (on average 1.2369668246445498) internal successors, (261), 230 states have internal predecessors, (261), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2023-11-29 05:31:58,486 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 241 states to 241 states and 277 transitions. [2023-11-29 05:31:58,486 INFO L78 Accepts]: Start accepts. Automaton has 241 states and 277 transitions. Word has length 69 [2023-11-29 05:31:58,486 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:31:58,486 INFO L495 AbstractCegarLoop]: Abstraction has 241 states and 277 transitions. [2023-11-29 05:31:58,487 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 8.545454545454545) internal successors, (94), 12 states have internal predecessors, (94), 6 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 6 states have call predecessors, (10), 6 states have call successors, (10) [2023-11-29 05:31:58,487 INFO L276 IsEmpty]: Start isEmpty. Operand 241 states and 277 transitions. [2023-11-29 05:31:58,487 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2023-11-29 05:31:58,487 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:31:58,487 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 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] [2023-11-29 05:31:58,492 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eddeddc0-fd7c-454d-a152-3b12d7ae0c1b/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Ended with exit code 0 [2023-11-29 05:31:58,688 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17,16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eddeddc0-fd7c-454d-a152-3b12d7ae0c1b/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:31:58,688 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2023-11-29 05:31:58,688 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:31:58,689 INFO L85 PathProgramCache]: Analyzing trace with hash -2115571956, now seen corresponding path program 1 times [2023-11-29 05:31:58,689 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:31:58,689 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [140509980] [2023-11-29 05:31:58,689 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:31:58,689 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:31:58,695 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 05:31:58,695 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [112212889] [2023-11-29 05:31:58,696 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:31:58,696 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:31:58,696 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eddeddc0-fd7c-454d-a152-3b12d7ae0c1b/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:31:58,697 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eddeddc0-fd7c-454d-a152-3b12d7ae0c1b/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 05:31:58,697 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eddeddc0-fd7c-454d-a152-3b12d7ae0c1b/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2023-11-29 05:31:58,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:31:58,743 INFO L262 TraceCheckSpWp]: Trace formula consists of 122 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-29 05:31:58,744 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:32:05,777 WARN L876 $PredicateComparison]: unable to prove that (exists ((|ULTIMATE.start_main_~R~0#1| Int)) (let ((.cse0 (* |ULTIMATE.start_main_~R~0#1| |ULTIMATE.start_main_~R~0#1|))) (and (<= (+ |c_ULTIMATE.start_main_~r~0#1| |c_ULTIMATE.start_main_~A~0#1| 1) .cse0) (<= .cse0 9223372036854775807)))) is different from true [2023-11-29 05:32:05,798 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 3 not checked. [2023-11-29 05:32:05,798 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 05:32:05,912 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-11-29 05:32:05,912 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:32:05,912 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [140509980] [2023-11-29 05:32:05,912 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 05:32:05,912 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [112212889] [2023-11-29 05:32:05,912 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [112212889] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 05:32:05,913 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 05:32:05,913 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 9 [2023-11-29 05:32:05,913 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1507050352] [2023-11-29 05:32:05,913 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 05:32:05,913 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-29 05:32:05,914 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:32:05,914 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-29 05:32:05,914 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=48, Unknown=3, NotChecked=14, Total=90 [2023-11-29 05:32:05,915 INFO L87 Difference]: Start difference. First operand 241 states and 277 transitions. Second operand has 10 states, 9 states have (on average 9.222222222222221) internal successors, (83), 10 states have internal predecessors, (83), 3 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2023-11-29 05:32:17,944 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.32s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 05:32:22,628 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 05:32:24,022 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.39s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 05:32:28,024 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 05:32:30,653 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.63s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 05:32:34,659 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 05:32:37,546 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 05:32:41,551 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 05:32:42,960 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.40s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 05:32:46,963 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 05:32:52,492 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 05:32:53,636 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.14s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 05:32:56,334 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 05:32:57,722 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.38s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 05:33:00,483 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.30s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 05:33:01,774 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.29s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 05:33:06,392 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 05:33:10,395 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 05:33:14,504 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.55s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 05:33:16,385 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.87s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 05:33:18,937 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.54s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 05:33:23,625 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 05:33:24,923 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.30s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 05:33:28,926 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 05:33:33,272 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.13s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 05:33:37,280 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 05:33:41,290 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 05:33:46,086 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 05:33:47,388 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.30s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 05:33:48,914 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.52s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 05:33:50,539 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.62s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 05:33:55,319 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 05:33:59,350 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 05:34:03,357 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 05:34:07,362 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 05:34:11,365 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 05:34:15,368 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 05:34:20,187 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 05:34:20,188 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:34:20,188 INFO L93 Difference]: Finished difference Result 254 states and 277 transitions. [2023-11-29 05:34:20,189 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-29 05:34:20,190 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 9.222222222222221) internal successors, (83), 10 states have internal predecessors, (83), 3 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) Word has length 69 [2023-11-29 05:34:20,190 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:34:20,191 INFO L225 Difference]: With dead ends: 254 [2023-11-29 05:34:20,191 INFO L226 Difference]: Without dead ends: 253 [2023-11-29 05:34:20,191 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 139 GetRequests, 128 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 16.7s TimeCoverageRelationStatistics Valid=54, Invalid=75, Unknown=7, NotChecked=20, Total=156 [2023-11-29 05:34:20,192 INFO L413 NwaCegarLoop]: 42 mSDtfsCounter, 274 mSDsluCounter, 141 mSDsCounter, 0 mSdLazyCounter, 103 mSolverCounterSat, 12 mSolverCounterUnsat, 56 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 124.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 274 SdHoareTripleChecker+Valid, 183 SdHoareTripleChecker+Invalid, 328 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 103 IncrementalHoareTripleChecker+Invalid, 56 IncrementalHoareTripleChecker+Unknown, 157 IncrementalHoareTripleChecker+Unchecked, 124.4s IncrementalHoareTripleChecker+Time [2023-11-29 05:34:20,192 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [274 Valid, 183 Invalid, 328 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 103 Invalid, 56 Unknown, 157 Unchecked, 124.4s Time] [2023-11-29 05:34:20,193 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 253 states. [2023-11-29 05:34:20,203 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 253 to 240. [2023-11-29 05:34:20,204 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 240 states, 211 states have (on average 1.2180094786729858) internal successors, (257), 229 states have internal predecessors, (257), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2023-11-29 05:34:20,205 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 240 states to 240 states and 273 transitions. [2023-11-29 05:34:20,205 INFO L78 Accepts]: Start accepts. Automaton has 240 states and 273 transitions. Word has length 69 [2023-11-29 05:34:20,205 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:34:20,206 INFO L495 AbstractCegarLoop]: Abstraction has 240 states and 273 transitions. [2023-11-29 05:34:20,206 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 9.222222222222221) internal successors, (83), 10 states have internal predecessors, (83), 3 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2023-11-29 05:34:20,206 INFO L276 IsEmpty]: Start isEmpty. Operand 240 states and 273 transitions. [2023-11-29 05:34:20,206 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2023-11-29 05:34:20,206 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:34:20,206 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 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] [2023-11-29 05:34:20,211 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eddeddc0-fd7c-454d-a152-3b12d7ae0c1b/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Ended with exit code 0 [2023-11-29 05:34:20,407 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eddeddc0-fd7c-454d-a152-3b12d7ae0c1b/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:34:20,407 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2023-11-29 05:34:20,407 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:34:20,407 INFO L85 PathProgramCache]: Analyzing trace with hash -1224033458, now seen corresponding path program 1 times [2023-11-29 05:34:20,407 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:34:20,407 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [951035209] [2023-11-29 05:34:20,408 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:34:20,408 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:34:20,415 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 05:34:20,415 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1309588819] [2023-11-29 05:34:20,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:34:20,415 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:34:20,415 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eddeddc0-fd7c-454d-a152-3b12d7ae0c1b/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:34:20,416 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eddeddc0-fd7c-454d-a152-3b12d7ae0c1b/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 05:34:20,417 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eddeddc0-fd7c-454d-a152-3b12d7ae0c1b/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2023-11-29 05:34:20,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:34:20,474 INFO L262 TraceCheckSpWp]: Trace formula consists of 123 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-29 05:34:20,476 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:34:20,599 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 3 proven. 10 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2023-11-29 05:34:20,600 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 05:34:20,728 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 3 proven. 10 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2023-11-29 05:34:20,728 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:34:20,728 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [951035209] [2023-11-29 05:34:20,728 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 05:34:20,728 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1309588819] [2023-11-29 05:34:20,729 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1309588819] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 05:34:20,729 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 05:34:20,729 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 12 [2023-11-29 05:34:20,729 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2030267265] [2023-11-29 05:34:20,729 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 05:34:20,729 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-11-29 05:34:20,729 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:34:20,730 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-11-29 05:34:20,730 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156 [2023-11-29 05:34:20,730 INFO L87 Difference]: Start difference. First operand 240 states and 273 transitions. Second operand has 13 states, 12 states have (on average 8.25) internal successors, (99), 13 states have internal predecessors, (99), 5 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (9), 5 states have call predecessors, (9), 5 states have call successors, (9) [2023-11-29 05:34:20,994 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:34:20,994 INFO L93 Difference]: Finished difference Result 293 states and 327 transitions. [2023-11-29 05:34:20,994 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-29 05:34:20,994 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 8.25) internal successors, (99), 13 states have internal predecessors, (99), 5 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (9), 5 states have call predecessors, (9), 5 states have call successors, (9) Word has length 70 [2023-11-29 05:34:20,995 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:34:20,996 INFO L225 Difference]: With dead ends: 293 [2023-11-29 05:34:20,996 INFO L226 Difference]: Without dead ends: 292 [2023-11-29 05:34:20,997 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 142 GetRequests, 127 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=65, Invalid=207, Unknown=0, NotChecked=0, Total=272 [2023-11-29 05:34:20,997 INFO L413 NwaCegarLoop]: 37 mSDtfsCounter, 295 mSDsluCounter, 115 mSDsCounter, 0 mSdLazyCounter, 301 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 295 SdHoareTripleChecker+Valid, 152 SdHoareTripleChecker+Invalid, 312 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 301 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 05:34:20,997 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [295 Valid, 152 Invalid, 312 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 301 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 05:34:20,998 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 292 states. [2023-11-29 05:34:21,010 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 292 to 240. [2023-11-29 05:34:21,010 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 240 states, 211 states have (on average 1.1990521327014219) internal successors, (253), 229 states have internal predecessors, (253), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2023-11-29 05:34:21,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 240 states to 240 states and 269 transitions. [2023-11-29 05:34:21,011 INFO L78 Accepts]: Start accepts. Automaton has 240 states and 269 transitions. Word has length 70 [2023-11-29 05:34:21,012 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:34:21,012 INFO L495 AbstractCegarLoop]: Abstraction has 240 states and 269 transitions. [2023-11-29 05:34:21,012 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 8.25) internal successors, (99), 13 states have internal predecessors, (99), 5 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (9), 5 states have call predecessors, (9), 5 states have call successors, (9) [2023-11-29 05:34:21,012 INFO L276 IsEmpty]: Start isEmpty. Operand 240 states and 269 transitions. [2023-11-29 05:34:21,013 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2023-11-29 05:34:21,013 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:34:21,013 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 05:34:21,018 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eddeddc0-fd7c-454d-a152-3b12d7ae0c1b/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2023-11-29 05:34:21,213 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eddeddc0-fd7c-454d-a152-3b12d7ae0c1b/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:34:21,214 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2023-11-29 05:34:21,214 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:34:21,214 INFO L85 PathProgramCache]: Analyzing trace with hash -1545116146, now seen corresponding path program 1 times [2023-11-29 05:34:21,214 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:34:21,214 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2143141515] [2023-11-29 05:34:21,214 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:34:21,214 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:34:21,222 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 05:34:21,222 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1190713567] [2023-11-29 05:34:21,222 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:34:21,222 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:34:21,222 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eddeddc0-fd7c-454d-a152-3b12d7ae0c1b/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:34:21,223 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eddeddc0-fd7c-454d-a152-3b12d7ae0c1b/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 05:34:21,224 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eddeddc0-fd7c-454d-a152-3b12d7ae0c1b/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2023-11-29 05:34:21,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:34:21,269 INFO L262 TraceCheckSpWp]: Trace formula consists of 124 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 05:34:21,270 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:34:21,352 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-11-29 05:34:21,352 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 05:34:21,426 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-11-29 05:34:21,426 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:34:21,426 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2143141515] [2023-11-29 05:34:21,427 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 05:34:21,427 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1190713567] [2023-11-29 05:34:21,427 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1190713567] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 05:34:21,427 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 05:34:21,427 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7 [2023-11-29 05:34:21,427 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1073253795] [2023-11-29 05:34:21,427 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 05:34:21,428 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-29 05:34:21,428 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:34:21,428 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-29 05:34:21,428 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2023-11-29 05:34:21,428 INFO L87 Difference]: Start difference. First operand 240 states and 269 transitions. Second operand has 8 states, 7 states have (on average 12.428571428571429) internal successors, (87), 8 states have internal predecessors, (87), 3 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2023-11-29 05:34:21,610 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:34:21,610 INFO L93 Difference]: Finished difference Result 292 states and 323 transitions. [2023-11-29 05:34:21,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-29 05:34:21,610 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 12.428571428571429) internal successors, (87), 8 states have internal predecessors, (87), 3 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) Word has length 71 [2023-11-29 05:34:21,611 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:34:21,612 INFO L225 Difference]: With dead ends: 292 [2023-11-29 05:34:21,612 INFO L226 Difference]: Without dead ends: 291 [2023-11-29 05:34:21,613 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 141 GetRequests, 134 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2023-11-29 05:34:21,613 INFO L413 NwaCegarLoop]: 54 mSDtfsCounter, 126 mSDsluCounter, 161 mSDsCounter, 0 mSdLazyCounter, 154 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 126 SdHoareTripleChecker+Valid, 215 SdHoareTripleChecker+Invalid, 157 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 154 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 05:34:21,613 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [126 Valid, 215 Invalid, 157 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 154 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 05:34:21,614 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 291 states. [2023-11-29 05:34:21,625 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 291 to 234. [2023-11-29 05:34:21,626 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 234 states, 206 states have (on average 1.1941747572815533) internal successors, (246), 223 states have internal predecessors, (246), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2023-11-29 05:34:21,627 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 234 states to 234 states and 262 transitions. [2023-11-29 05:34:21,627 INFO L78 Accepts]: Start accepts. Automaton has 234 states and 262 transitions. Word has length 71 [2023-11-29 05:34:21,627 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:34:21,627 INFO L495 AbstractCegarLoop]: Abstraction has 234 states and 262 transitions. [2023-11-29 05:34:21,628 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 12.428571428571429) internal successors, (87), 8 states have internal predecessors, (87), 3 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2023-11-29 05:34:21,628 INFO L276 IsEmpty]: Start isEmpty. Operand 234 states and 262 transitions. [2023-11-29 05:34:21,628 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2023-11-29 05:34:21,628 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:34:21,629 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 05:34:21,635 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eddeddc0-fd7c-454d-a152-3b12d7ae0c1b/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Forceful destruction successful, exit code 0 [2023-11-29 05:34:21,829 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eddeddc0-fd7c-454d-a152-3b12d7ae0c1b/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:34:21,829 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2023-11-29 05:34:21,830 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:34:21,830 INFO L85 PathProgramCache]: Analyzing trace with hash -156161006, now seen corresponding path program 1 times [2023-11-29 05:34:21,830 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:34:21,830 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1338354783] [2023-11-29 05:34:21,830 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:34:21,830 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:34:21,837 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 05:34:21,838 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [318860283] [2023-11-29 05:34:21,838 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:34:21,838 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:34:21,838 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eddeddc0-fd7c-454d-a152-3b12d7ae0c1b/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:34:21,839 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eddeddc0-fd7c-454d-a152-3b12d7ae0c1b/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 05:34:21,845 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eddeddc0-fd7c-454d-a152-3b12d7ae0c1b/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2023-11-29 05:34:21,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:34:21,900 INFO L262 TraceCheckSpWp]: Trace formula consists of 128 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-29 05:34:21,902 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:34:21,952 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-11-29 05:34:21,952 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 05:34:22,056 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-11-29 05:34:22,056 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:34:22,056 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1338354783] [2023-11-29 05:34:22,056 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 05:34:22,056 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [318860283] [2023-11-29 05:34:22,056 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [318860283] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 05:34:22,056 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 05:34:22,057 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 5 [2023-11-29 05:34:22,057 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1154558663] [2023-11-29 05:34:22,057 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 05:34:22,057 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 05:34:22,057 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:34:22,058 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 05:34:22,058 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-11-29 05:34:22,058 INFO L87 Difference]: Start difference. First operand 234 states and 262 transitions. Second operand has 6 states, 5 states have (on average 19.0) internal successors, (95), 6 states have internal predecessors, (95), 3 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2023-11-29 05:34:22,333 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:34:22,334 INFO L93 Difference]: Finished difference Result 471 states and 549 transitions. [2023-11-29 05:34:22,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 05:34:22,335 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 19.0) internal successors, (95), 6 states have internal predecessors, (95), 3 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) Word has length 75 [2023-11-29 05:34:22,336 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:34:22,338 INFO L225 Difference]: With dead ends: 471 [2023-11-29 05:34:22,338 INFO L226 Difference]: Without dead ends: 445 [2023-11-29 05:34:22,338 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 149 GetRequests, 144 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2023-11-29 05:34:22,339 INFO L413 NwaCegarLoop]: 83 mSDtfsCounter, 244 mSDsluCounter, 139 mSDsCounter, 0 mSdLazyCounter, 157 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 246 SdHoareTripleChecker+Valid, 222 SdHoareTripleChecker+Invalid, 188 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 157 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 05:34:22,339 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [246 Valid, 222 Invalid, 188 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 157 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 05:34:22,340 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 445 states. [2023-11-29 05:34:22,373 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 445 to 378. [2023-11-29 05:34:22,374 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 378 states, 354 states have (on average 1.1327683615819208) internal successors, (401), 363 states have internal predecessors, (401), 12 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2023-11-29 05:34:22,376 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 378 states to 378 states and 425 transitions. [2023-11-29 05:34:22,376 INFO L78 Accepts]: Start accepts. Automaton has 378 states and 425 transitions. Word has length 75 [2023-11-29 05:34:22,376 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:34:22,377 INFO L495 AbstractCegarLoop]: Abstraction has 378 states and 425 transitions. [2023-11-29 05:34:22,377 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 19.0) internal successors, (95), 6 states have internal predecessors, (95), 3 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2023-11-29 05:34:22,377 INFO L276 IsEmpty]: Start isEmpty. Operand 378 states and 425 transitions. [2023-11-29 05:34:22,378 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2023-11-29 05:34:22,378 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:34:22,378 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 05:34:22,384 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eddeddc0-fd7c-454d-a152-3b12d7ae0c1b/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Ended with exit code 0 [2023-11-29 05:34:22,578 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eddeddc0-fd7c-454d-a152-3b12d7ae0c1b/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2023-11-29 05:34:22,578 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2023-11-29 05:34:22,579 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:34:22,579 INFO L85 PathProgramCache]: Analyzing trace with hash 329928270, now seen corresponding path program 1 times [2023-11-29 05:34:22,579 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:34:22,579 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1359343022] [2023-11-29 05:34:22,579 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:34:22,579 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:34:22,585 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 05:34:22,586 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1233052106] [2023-11-29 05:34:22,586 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:34:22,586 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:34:22,586 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eddeddc0-fd7c-454d-a152-3b12d7ae0c1b/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:34:22,587 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eddeddc0-fd7c-454d-a152-3b12d7ae0c1b/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 05:34:22,588 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eddeddc0-fd7c-454d-a152-3b12d7ae0c1b/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2023-11-29 05:34:22,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:34:22,631 INFO L262 TraceCheckSpWp]: Trace formula consists of 134 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-29 05:34:22,632 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:34:22,758 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 18 proven. 6 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2023-11-29 05:34:22,758 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 05:34:27,069 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:34:27,069 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1359343022] [2023-11-29 05:34:27,069 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 05:34:27,069 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1233052106] [2023-11-29 05:34:27,070 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1233052106] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 05:34:27,070 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 05:34:27,070 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2023-11-29 05:34:27,070 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [972623835] [2023-11-29 05:34:27,070 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 05:34:27,070 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-29 05:34:27,070 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:34:27,071 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-29 05:34:27,071 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=80, Unknown=1, NotChecked=0, Total=110 [2023-11-29 05:34:27,071 INFO L87 Difference]: Start difference. First operand 378 states and 425 transitions. Second operand has 8 states, 7 states have (on average 9.285714285714286) internal successors, (65), 8 states have internal predecessors, (65), 3 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2023-11-29 05:34:27,327 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:34:27,327 INFO L93 Difference]: Finished difference Result 383 states and 425 transitions. [2023-11-29 05:34:27,327 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-29 05:34:27,328 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 9.285714285714286) internal successors, (65), 8 states have internal predecessors, (65), 3 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) Word has length 81 [2023-11-29 05:34:27,328 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:34:27,330 INFO L225 Difference]: With dead ends: 383 [2023-11-29 05:34:27,330 INFO L226 Difference]: Without dead ends: 363 [2023-11-29 05:34:27,330 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 106 GetRequests, 93 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 4.2s TimeCoverageRelationStatistics Valid=58, Invalid=151, Unknown=1, NotChecked=0, Total=210 [2023-11-29 05:34:27,331 INFO L413 NwaCegarLoop]: 45 mSDtfsCounter, 173 mSDsluCounter, 145 mSDsCounter, 0 mSdLazyCounter, 303 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 173 SdHoareTripleChecker+Valid, 190 SdHoareTripleChecker+Invalid, 310 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 303 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 05:34:27,331 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [173 Valid, 190 Invalid, 310 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 303 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 05:34:27,332 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 363 states. [2023-11-29 05:34:27,352 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 363 to 343. [2023-11-29 05:34:27,353 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 343 states, 323 states have (on average 1.105263157894737) internal successors, (357), 328 states have internal predecessors, (357), 12 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2023-11-29 05:34:27,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 343 states to 343 states and 381 transitions. [2023-11-29 05:34:27,354 INFO L78 Accepts]: Start accepts. Automaton has 343 states and 381 transitions. Word has length 81 [2023-11-29 05:34:27,355 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:34:27,355 INFO L495 AbstractCegarLoop]: Abstraction has 343 states and 381 transitions. [2023-11-29 05:34:27,355 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 9.285714285714286) internal successors, (65), 8 states have internal predecessors, (65), 3 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2023-11-29 05:34:27,355 INFO L276 IsEmpty]: Start isEmpty. Operand 343 states and 381 transitions. [2023-11-29 05:34:27,355 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2023-11-29 05:34:27,356 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:34:27,356 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 05:34:27,362 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eddeddc0-fd7c-454d-a152-3b12d7ae0c1b/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Ended with exit code 0 [2023-11-29 05:34:27,556 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eddeddc0-fd7c-454d-a152-3b12d7ae0c1b/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:34:27,556 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr32ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2023-11-29 05:34:27,557 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:34:27,557 INFO L85 PathProgramCache]: Analyzing trace with hash -708013328, now seen corresponding path program 1 times [2023-11-29 05:34:27,557 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:34:27,557 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1443124787] [2023-11-29 05:34:27,557 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:34:27,557 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:34:27,565 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 05:34:27,565 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1347227787] [2023-11-29 05:34:27,565 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:34:27,566 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:34:27,566 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eddeddc0-fd7c-454d-a152-3b12d7ae0c1b/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:34:27,567 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eddeddc0-fd7c-454d-a152-3b12d7ae0c1b/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 05:34:27,568 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eddeddc0-fd7c-454d-a152-3b12d7ae0c1b/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2023-11-29 05:34:27,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:34:27,623 INFO L262 TraceCheckSpWp]: Trace formula consists of 150 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 05:34:27,625 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:34:27,710 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 0 proven. 23 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2023-11-29 05:34:27,710 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 05:34:27,801 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 0 proven. 23 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2023-11-29 05:34:27,802 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:34:27,802 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1443124787] [2023-11-29 05:34:27,802 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 05:34:27,802 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1347227787] [2023-11-29 05:34:27,802 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1347227787] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 05:34:27,802 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 05:34:27,802 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7 [2023-11-29 05:34:27,803 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1639072867] [2023-11-29 05:34:27,803 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 05:34:27,803 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-29 05:34:27,803 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:34:27,804 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-29 05:34:27,804 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2023-11-29 05:34:27,805 INFO L87 Difference]: Start difference. First operand 343 states and 381 transitions. Second operand has 8 states, 7 states have (on average 17.285714285714285) internal successors, (121), 8 states have internal predecessors, (121), 5 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 5 states have call predecessors, (8), 5 states have call successors, (8) [2023-11-29 05:34:27,963 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:34:27,963 INFO L93 Difference]: Finished difference Result 345 states and 381 transitions. [2023-11-29 05:34:27,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-29 05:34:27,963 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 17.285714285714285) internal successors, (121), 8 states have internal predecessors, (121), 5 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 5 states have call predecessors, (8), 5 states have call successors, (8) Word has length 93 [2023-11-29 05:34:27,964 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:34:27,965 INFO L225 Difference]: With dead ends: 345 [2023-11-29 05:34:27,965 INFO L226 Difference]: Without dead ends: 344 [2023-11-29 05:34:27,965 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 188 GetRequests, 178 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2023-11-29 05:34:27,966 INFO L413 NwaCegarLoop]: 56 mSDtfsCounter, 114 mSDsluCounter, 145 mSDsCounter, 0 mSdLazyCounter, 136 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 114 SdHoareTripleChecker+Valid, 201 SdHoareTripleChecker+Invalid, 141 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 136 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 05:34:27,966 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [114 Valid, 201 Invalid, 141 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 136 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 05:34:27,967 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 344 states. [2023-11-29 05:34:27,990 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 344 to 342. [2023-11-29 05:34:27,990 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 342 states, 323 states have (on average 1.0866873065015479) internal successors, (351), 327 states have internal predecessors, (351), 12 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2023-11-29 05:34:27,991 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 342 states to 342 states and 375 transitions. [2023-11-29 05:34:27,991 INFO L78 Accepts]: Start accepts. Automaton has 342 states and 375 transitions. Word has length 93 [2023-11-29 05:34:27,992 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:34:27,992 INFO L495 AbstractCegarLoop]: Abstraction has 342 states and 375 transitions. [2023-11-29 05:34:27,992 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 17.285714285714285) internal successors, (121), 8 states have internal predecessors, (121), 5 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 5 states have call predecessors, (8), 5 states have call successors, (8) [2023-11-29 05:34:27,992 INFO L276 IsEmpty]: Start isEmpty. Operand 342 states and 375 transitions. [2023-11-29 05:34:27,993 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2023-11-29 05:34:27,993 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:34:27,993 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 05:34:27,999 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eddeddc0-fd7c-454d-a152-3b12d7ae0c1b/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Ended with exit code 0 [2023-11-29 05:34:28,193 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eddeddc0-fd7c-454d-a152-3b12d7ae0c1b/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2023-11-29 05:34:28,194 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2023-11-29 05:34:28,194 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:34:28,194 INFO L85 PathProgramCache]: Analyzing trace with hash 1651634289, now seen corresponding path program 1 times [2023-11-29 05:34:28,194 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:34:28,194 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [35633348] [2023-11-29 05:34:28,194 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:34:28,194 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:34:28,202 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 05:34:28,202 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [435215734] [2023-11-29 05:34:28,202 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:34:28,202 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:34:28,202 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eddeddc0-fd7c-454d-a152-3b12d7ae0c1b/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:34:28,203 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eddeddc0-fd7c-454d-a152-3b12d7ae0c1b/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 05:34:28,204 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eddeddc0-fd7c-454d-a152-3b12d7ae0c1b/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2023-11-29 05:34:28,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:34:28,251 INFO L262 TraceCheckSpWp]: Trace formula consists of 161 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-29 05:34:28,253 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:34:28,462 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 0 proven. 34 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2023-11-29 05:34:28,462 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 05:34:28,596 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 0 proven. 34 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2023-11-29 05:34:28,596 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:34:28,596 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [35633348] [2023-11-29 05:34:28,597 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 05:34:28,597 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [435215734] [2023-11-29 05:34:28,597 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [435215734] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 05:34:28,597 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 05:34:28,597 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 11 [2023-11-29 05:34:28,597 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2053100895] [2023-11-29 05:34:28,597 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 05:34:28,598 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-29 05:34:28,598 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:34:28,598 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-29 05:34:28,605 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2023-11-29 05:34:28,606 INFO L87 Difference]: Start difference. First operand 342 states and 375 transitions. Second operand has 12 states, 11 states have (on average 13.272727272727273) internal successors, (146), 12 states have internal predecessors, (146), 6 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 6 states have call predecessors, (12), 6 states have call successors, (12) [2023-11-29 05:34:28,908 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:34:28,908 INFO L93 Difference]: Finished difference Result 394 states and 430 transitions. [2023-11-29 05:34:28,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-11-29 05:34:28,909 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 13.272727272727273) internal successors, (146), 12 states have internal predecessors, (146), 6 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 6 states have call predecessors, (12), 6 states have call successors, (12) Word has length 100 [2023-11-29 05:34:28,909 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:34:28,910 INFO L225 Difference]: With dead ends: 394 [2023-11-29 05:34:28,911 INFO L226 Difference]: Without dead ends: 393 [2023-11-29 05:34:28,911 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 208 GetRequests, 188 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 98 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=178, Invalid=284, Unknown=0, NotChecked=0, Total=462 [2023-11-29 05:34:28,911 INFO L413 NwaCegarLoop]: 48 mSDtfsCounter, 384 mSDsluCounter, 214 mSDsCounter, 0 mSdLazyCounter, 279 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 384 SdHoareTripleChecker+Valid, 262 SdHoareTripleChecker+Invalid, 304 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 279 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 05:34:28,912 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [384 Valid, 262 Invalid, 304 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 279 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 05:34:28,912 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 393 states. [2023-11-29 05:34:28,933 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 393 to 333. [2023-11-29 05:34:28,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 333 states, 315 states have (on average 1.0698412698412698) internal successors, (337), 318 states have internal predecessors, (337), 12 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2023-11-29 05:34:28,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 333 states to 333 states and 361 transitions. [2023-11-29 05:34:28,935 INFO L78 Accepts]: Start accepts. Automaton has 333 states and 361 transitions. Word has length 100 [2023-11-29 05:34:28,936 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:34:28,936 INFO L495 AbstractCegarLoop]: Abstraction has 333 states and 361 transitions. [2023-11-29 05:34:28,936 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 13.272727272727273) internal successors, (146), 12 states have internal predecessors, (146), 6 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 6 states have call predecessors, (12), 6 states have call successors, (12) [2023-11-29 05:34:28,936 INFO L276 IsEmpty]: Start isEmpty. Operand 333 states and 361 transitions. [2023-11-29 05:34:28,937 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2023-11-29 05:34:28,937 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:34:28,937 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 05:34:28,943 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eddeddc0-fd7c-454d-a152-3b12d7ae0c1b/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Forceful destruction successful, exit code 0 [2023-11-29 05:34:29,137 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eddeddc0-fd7c-454d-a152-3b12d7ae0c1b/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2023-11-29 05:34:29,138 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2023-11-29 05:34:29,138 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:34:29,138 INFO L85 PathProgramCache]: Analyzing trace with hash -2112384977, now seen corresponding path program 1 times [2023-11-29 05:34:29,138 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:34:29,138 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1189003059] [2023-11-29 05:34:29,139 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:34:29,139 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:34:29,145 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 05:34:29,145 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [92017142] [2023-11-29 05:34:29,145 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:34:29,145 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:34:29,145 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eddeddc0-fd7c-454d-a152-3b12d7ae0c1b/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:34:29,146 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eddeddc0-fd7c-454d-a152-3b12d7ae0c1b/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 05:34:29,147 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eddeddc0-fd7c-454d-a152-3b12d7ae0c1b/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2023-11-29 05:34:29,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:34:29,221 INFO L262 TraceCheckSpWp]: Trace formula consists of 164 conjuncts, 37 conjunts are in the unsatisfiable core [2023-11-29 05:34:29,223 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:34:40,488 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 3 proven. 46 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2023-11-29 05:34:40,488 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 05:35:09,937 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 12 proven. 43 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2023-11-29 05:35:09,937 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:35:09,937 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1189003059] [2023-11-29 05:35:09,937 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 05:35:09,937 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [92017142] [2023-11-29 05:35:09,938 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [92017142] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 05:35:09,938 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 05:35:09,938 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 15] total 28 [2023-11-29 05:35:09,938 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [762211160] [2023-11-29 05:35:09,938 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 05:35:09,939 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2023-11-29 05:35:09,939 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:35:09,939 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2023-11-29 05:35:09,939 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=156, Invalid=656, Unknown=0, NotChecked=0, Total=812 [2023-11-29 05:35:09,940 INFO L87 Difference]: Start difference. First operand 333 states and 361 transitions. Second operand has 29 states, 28 states have (on average 5.75) internal successors, (161), 27 states have internal predecessors, (161), 8 states have call successors, (11), 1 states have call predecessors, (11), 3 states have return successors, (12), 10 states have call predecessors, (12), 8 states have call successors, (12) [2023-11-29 05:35:12,861 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.92s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-11-29 05:35:17,101 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-11-29 05:35:51,822 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 05:36:03,975 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.41s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 05:36:15,589 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:36:15,589 INFO L93 Difference]: Finished difference Result 786 states and 857 transitions. [2023-11-29 05:36:15,589 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2023-11-29 05:36:15,590 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 28 states have (on average 5.75) internal successors, (161), 27 states have internal predecessors, (161), 8 states have call successors, (11), 1 states have call predecessors, (11), 3 states have return successors, (12), 10 states have call predecessors, (12), 8 states have call successors, (12) Word has length 103 [2023-11-29 05:36:15,590 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:36:15,593 INFO L225 Difference]: With dead ends: 786 [2023-11-29 05:36:15,593 INFO L226 Difference]: Without dead ends: 785 [2023-11-29 05:36:15,594 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 232 GetRequests, 177 SyntacticMatches, 0 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 714 ImplicationChecksByTransitivity, 30.2s TimeCoverageRelationStatistics Valid=833, Invalid=2359, Unknown=0, NotChecked=0, Total=3192 [2023-11-29 05:36:15,594 INFO L413 NwaCegarLoop]: 23 mSDtfsCounter, 825 mSDsluCounter, 186 mSDsCounter, 0 mSdLazyCounter, 1606 mSolverCounterSat, 55 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 43.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 825 SdHoareTripleChecker+Valid, 209 SdHoareTripleChecker+Invalid, 1663 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 1606 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 43.8s IncrementalHoareTripleChecker+Time [2023-11-29 05:36:15,594 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [825 Valid, 209 Invalid, 1663 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 1606 Invalid, 2 Unknown, 0 Unchecked, 43.8s Time] [2023-11-29 05:36:15,595 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 785 states. [2023-11-29 05:36:15,660 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 785 to 595. [2023-11-29 05:36:15,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 595 states, 567 states have (on average 1.0776014109347443) internal successors, (611), 570 states have internal predecessors, (611), 22 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) [2023-11-29 05:36:15,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 595 states to 595 states and 655 transitions. [2023-11-29 05:36:15,663 INFO L78 Accepts]: Start accepts. Automaton has 595 states and 655 transitions. Word has length 103 [2023-11-29 05:36:15,663 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:36:15,663 INFO L495 AbstractCegarLoop]: Abstraction has 595 states and 655 transitions. [2023-11-29 05:36:15,664 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 28 states have (on average 5.75) internal successors, (161), 27 states have internal predecessors, (161), 8 states have call successors, (11), 1 states have call predecessors, (11), 3 states have return successors, (12), 10 states have call predecessors, (12), 8 states have call successors, (12) [2023-11-29 05:36:15,664 INFO L276 IsEmpty]: Start isEmpty. Operand 595 states and 655 transitions. [2023-11-29 05:36:15,665 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2023-11-29 05:36:15,665 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:36:15,665 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 05:36:15,671 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eddeddc0-fd7c-454d-a152-3b12d7ae0c1b/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Ended with exit code 0 [2023-11-29 05:36:15,865 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eddeddc0-fd7c-454d-a152-3b12d7ae0c1b/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2023-11-29 05:36:15,866 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2023-11-29 05:36:15,866 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:36:15,866 INFO L85 PathProgramCache]: Analyzing trace with hash 1490417279, now seen corresponding path program 1 times [2023-11-29 05:36:15,866 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:36:15,866 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [411004825] [2023-11-29 05:36:15,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:36:15,866 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:36:15,872 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 05:36:15,872 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1139677417] [2023-11-29 05:36:15,872 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:36:15,873 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:36:15,873 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eddeddc0-fd7c-454d-a152-3b12d7ae0c1b/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:36:15,873 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eddeddc0-fd7c-454d-a152-3b12d7ae0c1b/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 05:36:15,874 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eddeddc0-fd7c-454d-a152-3b12d7ae0c1b/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process [2023-11-29 05:36:15,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:36:15,925 INFO L262 TraceCheckSpWp]: Trace formula consists of 175 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-29 05:36:15,928 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:36:16,019 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 62 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2023-11-29 05:36:16,020 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 05:36:16,020 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:36:16,020 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [411004825] [2023-11-29 05:36:16,020 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 05:36:16,020 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1139677417] [2023-11-29 05:36:16,020 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1139677417] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 05:36:16,020 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 05:36:16,020 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-29 05:36:16,020 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [734630363] [2023-11-29 05:36:16,021 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 05:36:16,021 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 05:36:16,021 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:36:16,021 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 05:36:16,022 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-29 05:36:16,022 INFO L87 Difference]: Start difference. First operand 595 states and 655 transitions. Second operand has 6 states, 5 states have (on average 18.0) internal successors, (90), 6 states have internal predecessors, (90), 3 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2023-11-29 05:36:16,165 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:36:16,165 INFO L93 Difference]: Finished difference Result 596 states and 655 transitions. [2023-11-29 05:36:16,166 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 05:36:16,166 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 18.0) internal successors, (90), 6 states have internal predecessors, (90), 3 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) Word has length 114 [2023-11-29 05:36:16,166 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:36:16,168 INFO L225 Difference]: With dead ends: 596 [2023-11-29 05:36:16,168 INFO L226 Difference]: Without dead ends: 579 [2023-11-29 05:36:16,169 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 113 GetRequests, 109 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-29 05:36:16,169 INFO L413 NwaCegarLoop]: 81 mSDtfsCounter, 88 mSDsluCounter, 89 mSDsCounter, 0 mSdLazyCounter, 116 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 89 SdHoareTripleChecker+Valid, 170 SdHoareTripleChecker+Invalid, 119 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 116 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 05:36:16,169 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [89 Valid, 170 Invalid, 119 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 116 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 05:36:16,170 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 579 states. [2023-11-29 05:36:16,221 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 579 to 578. [2023-11-29 05:36:16,221 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 578 states, 552 states have (on average 1.0434782608695652) internal successors, (576), 553 states have internal predecessors, (576), 22 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) [2023-11-29 05:36:16,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 578 states to 578 states and 620 transitions. [2023-11-29 05:36:16,223 INFO L78 Accepts]: Start accepts. Automaton has 578 states and 620 transitions. Word has length 114 [2023-11-29 05:36:16,223 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:36:16,223 INFO L495 AbstractCegarLoop]: Abstraction has 578 states and 620 transitions. [2023-11-29 05:36:16,223 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 18.0) internal successors, (90), 6 states have internal predecessors, (90), 3 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2023-11-29 05:36:16,223 INFO L276 IsEmpty]: Start isEmpty. Operand 578 states and 620 transitions. [2023-11-29 05:36:16,224 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2023-11-29 05:36:16,224 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:36:16,225 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 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] [2023-11-29 05:36:16,229 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eddeddc0-fd7c-454d-a152-3b12d7ae0c1b/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Forceful destruction successful, exit code 0 [2023-11-29 05:36:16,425 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eddeddc0-fd7c-454d-a152-3b12d7ae0c1b/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2023-11-29 05:36:16,425 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2023-11-29 05:36:16,426 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:36:16,426 INFO L85 PathProgramCache]: Analyzing trace with hash -41039733, now seen corresponding path program 1 times [2023-11-29 05:36:16,426 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:36:16,426 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [75459384] [2023-11-29 05:36:16,426 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:36:16,426 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:36:16,436 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 05:36:16,436 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [213800610] [2023-11-29 05:36:16,436 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:36:16,436 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:36:16,437 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eddeddc0-fd7c-454d-a152-3b12d7ae0c1b/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:36:16,438 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eddeddc0-fd7c-454d-a152-3b12d7ae0c1b/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 05:36:16,439 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eddeddc0-fd7c-454d-a152-3b12d7ae0c1b/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Waiting until timeout for monitored process [2023-11-29 05:36:16,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:36:16,498 INFO L262 TraceCheckSpWp]: Trace formula consists of 240 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-29 05:36:16,500 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:36:16,707 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 58 proven. 114 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2023-11-29 05:36:16,708 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 05:36:16,929 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 36 proven. 136 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2023-11-29 05:36:16,929 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:36:16,929 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [75459384] [2023-11-29 05:36:16,929 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 05:36:16,930 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [213800610] [2023-11-29 05:36:16,930 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [213800610] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 05:36:16,930 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 05:36:16,930 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 16 [2023-11-29 05:36:16,930 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1007610365] [2023-11-29 05:36:16,930 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 05:36:16,931 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-11-29 05:36:16,931 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:36:16,931 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-11-29 05:36:16,932 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=181, Unknown=0, NotChecked=0, Total=240 [2023-11-29 05:36:16,932 INFO L87 Difference]: Start difference. First operand 578 states and 620 transitions. Second operand has 16 states, 16 states have (on average 14.375) internal successors, (230), 16 states have internal predecessors, (230), 9 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 9 states have call predecessors, (12), 9 states have call successors, (12) [2023-11-29 05:36:17,675 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:36:17,676 INFO L93 Difference]: Finished difference Result 920 states and 983 transitions. [2023-11-29 05:36:17,676 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2023-11-29 05:36:17,676 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 14.375) internal successors, (230), 16 states have internal predecessors, (230), 9 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 9 states have call predecessors, (12), 9 states have call successors, (12) Word has length 163 [2023-11-29 05:36:17,677 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:36:17,679 INFO L225 Difference]: With dead ends: 920 [2023-11-29 05:36:17,680 INFO L226 Difference]: Without dead ends: 639 [2023-11-29 05:36:17,681 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 340 GetRequests, 310 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 237 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=216, Invalid=776, Unknown=0, NotChecked=0, Total=992 [2023-11-29 05:36:17,681 INFO L413 NwaCegarLoop]: 70 mSDtfsCounter, 58 mSDsluCounter, 326 mSDsCounter, 0 mSdLazyCounter, 861 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 396 SdHoareTripleChecker+Invalid, 875 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 861 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-29 05:36:17,682 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [58 Valid, 396 Invalid, 875 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 861 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-29 05:36:17,682 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 639 states. [2023-11-29 05:36:17,739 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 639 to 633. [2023-11-29 05:36:17,740 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 633 states, 605 states have (on average 1.0380165289256198) internal successors, (628), 606 states have internal predecessors, (628), 24 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2023-11-29 05:36:17,741 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 633 states to 633 states and 676 transitions. [2023-11-29 05:36:17,741 INFO L78 Accepts]: Start accepts. Automaton has 633 states and 676 transitions. Word has length 163 [2023-11-29 05:36:17,742 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:36:17,742 INFO L495 AbstractCegarLoop]: Abstraction has 633 states and 676 transitions. [2023-11-29 05:36:17,742 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 14.375) internal successors, (230), 16 states have internal predecessors, (230), 9 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 9 states have call predecessors, (12), 9 states have call successors, (12) [2023-11-29 05:36:17,742 INFO L276 IsEmpty]: Start isEmpty. Operand 633 states and 676 transitions. [2023-11-29 05:36:17,743 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2023-11-29 05:36:17,743 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:36:17,743 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 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] [2023-11-29 05:36:17,749 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eddeddc0-fd7c-454d-a152-3b12d7ae0c1b/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Ended with exit code 0 [2023-11-29 05:36:17,944 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eddeddc0-fd7c-454d-a152-3b12d7ae0c1b/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2023-11-29 05:36:17,944 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2023-11-29 05:36:17,944 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:36:17,944 INFO L85 PathProgramCache]: Analyzing trace with hash 934284043, now seen corresponding path program 2 times [2023-11-29 05:36:17,944 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:36:17,944 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [578148993] [2023-11-29 05:36:17,944 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:36:17,944 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:36:17,952 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 05:36:17,953 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1466840167] [2023-11-29 05:36:17,953 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 05:36:17,953 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:36:17,953 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eddeddc0-fd7c-454d-a152-3b12d7ae0c1b/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:36:17,954 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eddeddc0-fd7c-454d-a152-3b12d7ae0c1b/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 05:36:17,955 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eddeddc0-fd7c-454d-a152-3b12d7ae0c1b/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Waiting until timeout for monitored process [2023-11-29 05:36:18,036 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-29 05:36:18,037 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 05:36:18,038 INFO L262 TraceCheckSpWp]: Trace formula consists of 240 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-29 05:36:18,040 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:36:18,111 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 118 proven. 22 refuted. 0 times theorem prover too weak. 80 trivial. 0 not checked. [2023-11-29 05:36:18,111 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 05:36:18,183 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 102 proven. 22 refuted. 0 times theorem prover too weak. 96 trivial. 0 not checked. [2023-11-29 05:36:18,184 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:36:18,184 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [578148993] [2023-11-29 05:36:18,184 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 05:36:18,184 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1466840167] [2023-11-29 05:36:18,184 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1466840167] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 05:36:18,184 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 05:36:18,184 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 7 [2023-11-29 05:36:18,184 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [995924969] [2023-11-29 05:36:18,184 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 05:36:18,185 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 05:36:18,185 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:36:18,186 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 05:36:18,186 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2023-11-29 05:36:18,186 INFO L87 Difference]: Start difference. First operand 633 states and 676 transitions. Second operand has 7 states, 7 states have (on average 14.285714285714286) internal successors, (100), 7 states have internal predecessors, (100), 4 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2023-11-29 05:36:18,332 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:36:18,332 INFO L93 Difference]: Finished difference Result 704 states and 749 transitions. [2023-11-29 05:36:18,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-29 05:36:18,333 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.285714285714286) internal successors, (100), 7 states have internal predecessors, (100), 4 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) Word has length 163 [2023-11-29 05:36:18,333 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:36:18,335 INFO L225 Difference]: With dead ends: 704 [2023-11-29 05:36:18,335 INFO L226 Difference]: Without dead ends: 533 [2023-11-29 05:36:18,335 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 325 GetRequests, 316 SyntacticMatches, 3 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2023-11-29 05:36:18,336 INFO L413 NwaCegarLoop]: 66 mSDtfsCounter, 11 mSDsluCounter, 179 mSDsCounter, 0 mSdLazyCounter, 160 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 245 SdHoareTripleChecker+Invalid, 162 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 160 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 05:36:18,336 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 245 Invalid, 162 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 160 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 05:36:18,336 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 533 states. [2023-11-29 05:36:18,385 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 533 to 533. [2023-11-29 05:36:18,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 533 states, 508 states have (on average 1.0334645669291338) internal successors, (525), 509 states have internal predecessors, (525), 21 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21) [2023-11-29 05:36:18,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 533 states to 533 states and 567 transitions. [2023-11-29 05:36:18,387 INFO L78 Accepts]: Start accepts. Automaton has 533 states and 567 transitions. Word has length 163 [2023-11-29 05:36:18,387 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:36:18,387 INFO L495 AbstractCegarLoop]: Abstraction has 533 states and 567 transitions. [2023-11-29 05:36:18,387 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.285714285714286) internal successors, (100), 7 states have internal predecessors, (100), 4 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2023-11-29 05:36:18,388 INFO L276 IsEmpty]: Start isEmpty. Operand 533 states and 567 transitions. [2023-11-29 05:36:18,388 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2023-11-29 05:36:18,389 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:36:18,389 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 05:36:18,393 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eddeddc0-fd7c-454d-a152-3b12d7ae0c1b/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Ended with exit code 0 [2023-11-29 05:36:18,589 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eddeddc0-fd7c-454d-a152-3b12d7ae0c1b/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2023-11-29 05:36:18,589 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2023-11-29 05:36:18,590 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:36:18,590 INFO L85 PathProgramCache]: Analyzing trace with hash 2127609045, now seen corresponding path program 3 times [2023-11-29 05:36:18,590 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:36:18,590 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2038948002] [2023-11-29 05:36:18,590 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:36:18,590 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:36:18,598 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 05:36:18,598 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [403390019] [2023-11-29 05:36:18,598 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-29 05:36:18,598 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:36:18,598 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eddeddc0-fd7c-454d-a152-3b12d7ae0c1b/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:36:18,599 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eddeddc0-fd7c-454d-a152-3b12d7ae0c1b/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 05:36:18,600 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eddeddc0-fd7c-454d-a152-3b12d7ae0c1b/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Waiting until timeout for monitored process [2023-11-29 05:36:20,325 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2023-11-29 05:36:20,325 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 05:36:20,328 INFO L262 TraceCheckSpWp]: Trace formula consists of 153 conjuncts, 17 conjunts are in the unsatisfiable core [2023-11-29 05:36:20,330 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:36:21,077 INFO L134 CoverageAnalysis]: Checked inductivity of 216 backedges. 3 proven. 107 refuted. 0 times theorem prover too weak. 106 trivial. 0 not checked. [2023-11-29 05:36:21,077 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 05:36:21,461 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:36:21,461 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2038948002] [2023-11-29 05:36:21,461 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 05:36:21,461 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [403390019] [2023-11-29 05:36:21,461 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [403390019] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 05:36:21,461 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 05:36:21,461 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2023-11-29 05:36:21,461 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1925755418] [2023-11-29 05:36:21,461 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 05:36:21,462 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-29 05:36:21,462 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:36:21,462 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-29 05:36:21,463 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=146, Unknown=0, NotChecked=0, Total=182 [2023-11-29 05:36:21,463 INFO L87 Difference]: Start difference. First operand 533 states and 567 transitions. Second operand has 9 states, 8 states have (on average 10.875) internal successors, (87), 9 states have internal predecessors, (87), 5 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 4 states have call predecessors, (6), 5 states have call successors, (6) [2023-11-29 05:36:22,189 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:36:22,189 INFO L93 Difference]: Finished difference Result 890 states and 946 transitions. [2023-11-29 05:36:22,189 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-29 05:36:22,189 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 10.875) internal successors, (87), 9 states have internal predecessors, (87), 5 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 4 states have call predecessors, (6), 5 states have call successors, (6) Word has length 163 [2023-11-29 05:36:22,190 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:36:22,193 INFO L225 Difference]: With dead ends: 890 [2023-11-29 05:36:22,193 INFO L226 Difference]: Without dead ends: 889 [2023-11-29 05:36:22,194 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 308 GetRequests, 291 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=79, Invalid=263, Unknown=0, NotChecked=0, Total=342 [2023-11-29 05:36:22,194 INFO L413 NwaCegarLoop]: 62 mSDtfsCounter, 296 mSDsluCounter, 271 mSDsCounter, 0 mSdLazyCounter, 379 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 297 SdHoareTripleChecker+Valid, 333 SdHoareTripleChecker+Invalid, 389 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 379 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-29 05:36:22,194 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [297 Valid, 333 Invalid, 389 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 379 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-29 05:36:22,195 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 889 states. [2023-11-29 05:36:22,260 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 889 to 602. [2023-11-29 05:36:22,260 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 602 states, 575 states have (on average 1.0347826086956522) internal successors, (595), 576 states have internal predecessors, (595), 23 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2023-11-29 05:36:22,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 602 states to 602 states and 641 transitions. [2023-11-29 05:36:22,262 INFO L78 Accepts]: Start accepts. Automaton has 602 states and 641 transitions. Word has length 163 [2023-11-29 05:36:22,262 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:36:22,262 INFO L495 AbstractCegarLoop]: Abstraction has 602 states and 641 transitions. [2023-11-29 05:36:22,262 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 10.875) internal successors, (87), 9 states have internal predecessors, (87), 5 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 4 states have call predecessors, (6), 5 states have call successors, (6) [2023-11-29 05:36:22,262 INFO L276 IsEmpty]: Start isEmpty. Operand 602 states and 641 transitions. [2023-11-29 05:36:22,263 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2023-11-29 05:36:22,263 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:36:22,264 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2023-11-29 05:36:22,269 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eddeddc0-fd7c-454d-a152-3b12d7ae0c1b/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Ended with exit code 0 [2023-11-29 05:36:22,464 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,28 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eddeddc0-fd7c-454d-a152-3b12d7ae0c1b/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:36:22,464 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2023-11-29 05:36:22,465 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:36:22,465 INFO L85 PathProgramCache]: Analyzing trace with hash 2145602987, now seen corresponding path program 2 times [2023-11-29 05:36:22,465 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:36:22,465 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [783496159] [2023-11-29 05:36:22,465 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:36:22,466 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:36:22,477 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 05:36:22,477 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1731775215] [2023-11-29 05:36:22,477 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 05:36:22,477 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:36:22,477 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eddeddc0-fd7c-454d-a152-3b12d7ae0c1b/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:36:22,478 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eddeddc0-fd7c-454d-a152-3b12d7ae0c1b/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 05:36:22,479 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eddeddc0-fd7c-454d-a152-3b12d7ae0c1b/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Waiting until timeout for monitored process [2023-11-29 05:36:22,582 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-29 05:36:22,583 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 05:36:22,584 INFO L262 TraceCheckSpWp]: Trace formula consists of 242 conjuncts, 11 conjunts are in the unsatisfiable core [2023-11-29 05:36:22,586 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:36:22,700 INFO L134 CoverageAnalysis]: Checked inductivity of 240 backedges. 0 proven. 192 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2023-11-29 05:36:22,700 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 05:36:22,945 INFO L134 CoverageAnalysis]: Checked inductivity of 240 backedges. 0 proven. 192 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2023-11-29 05:36:22,945 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:36:22,945 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [783496159] [2023-11-29 05:36:22,945 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 05:36:22,945 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1731775215] [2023-11-29 05:36:22,945 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1731775215] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 05:36:22,945 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 05:36:22,946 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 11 [2023-11-29 05:36:22,946 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1320064160] [2023-11-29 05:36:22,946 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 05:36:22,946 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-29 05:36:22,946 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:36:22,947 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-29 05:36:22,947 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2023-11-29 05:36:22,947 INFO L87 Difference]: Start difference. First operand 602 states and 641 transitions. Second operand has 12 states, 11 states have (on average 22.272727272727273) internal successors, (245), 12 states have internal predecessors, (245), 9 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 9 states have call predecessors, (12), 9 states have call successors, (12) [2023-11-29 05:36:23,506 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:36:23,507 INFO L93 Difference]: Finished difference Result 1768 states and 1901 transitions. [2023-11-29 05:36:23,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-29 05:36:23,507 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 22.272727272727273) internal successors, (245), 12 states have internal predecessors, (245), 9 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 9 states have call predecessors, (12), 9 states have call successors, (12) Word has length 165 [2023-11-29 05:36:23,508 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:36:23,515 INFO L225 Difference]: With dead ends: 1768 [2023-11-29 05:36:23,515 INFO L226 Difference]: Without dead ends: 1767 [2023-11-29 05:36:23,516 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 332 GetRequests, 318 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=94, Invalid=146, Unknown=0, NotChecked=0, Total=240 [2023-11-29 05:36:23,517 INFO L413 NwaCegarLoop]: 118 mSDtfsCounter, 300 mSDsluCounter, 548 mSDsCounter, 0 mSdLazyCounter, 448 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 302 SdHoareTripleChecker+Valid, 666 SdHoareTripleChecker+Invalid, 455 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 448 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-29 05:36:23,517 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [302 Valid, 666 Invalid, 455 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 448 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-29 05:36:23,519 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1767 states. [2023-11-29 05:36:23,739 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1767 to 1652. [2023-11-29 05:36:23,740 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1652 states, 1589 states have (on average 1.039018250471995) internal successors, (1651), 1590 states have internal predecessors, (1651), 59 states have call successors, (59), 2 states have call predecessors, (59), 2 states have return successors, (59), 59 states have call predecessors, (59), 59 states have call successors, (59) [2023-11-29 05:36:23,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1652 states to 1652 states and 1769 transitions. [2023-11-29 05:36:23,743 INFO L78 Accepts]: Start accepts. Automaton has 1652 states and 1769 transitions. Word has length 165 [2023-11-29 05:36:23,744 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:36:23,744 INFO L495 AbstractCegarLoop]: Abstraction has 1652 states and 1769 transitions. [2023-11-29 05:36:23,744 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 22.272727272727273) internal successors, (245), 12 states have internal predecessors, (245), 9 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 9 states have call predecessors, (12), 9 states have call successors, (12) [2023-11-29 05:36:23,744 INFO L276 IsEmpty]: Start isEmpty. Operand 1652 states and 1769 transitions. [2023-11-29 05:36:23,745 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2023-11-29 05:36:23,745 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:36:23,746 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 05:36:23,750 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eddeddc0-fd7c-454d-a152-3b12d7ae0c1b/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Ended with exit code 0 [2023-11-29 05:36:23,946 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30,29 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eddeddc0-fd7c-454d-a152-3b12d7ae0c1b/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:36:23,946 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2023-11-29 05:36:23,946 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:36:23,947 INFO L85 PathProgramCache]: Analyzing trace with hash -497217410, now seen corresponding path program 4 times [2023-11-29 05:36:23,947 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:36:23,947 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1209419351] [2023-11-29 05:36:23,947 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:36:23,947 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:36:23,960 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 05:36:23,960 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1469004020] [2023-11-29 05:36:23,961 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-11-29 05:36:23,961 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:36:23,961 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eddeddc0-fd7c-454d-a152-3b12d7ae0c1b/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:36:23,962 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eddeddc0-fd7c-454d-a152-3b12d7ae0c1b/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 05:36:23,964 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eddeddc0-fd7c-454d-a152-3b12d7ae0c1b/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Waiting until timeout for monitored process [2023-11-29 05:36:24,051 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-11-29 05:36:24,051 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 05:36:24,053 INFO L262 TraceCheckSpWp]: Trace formula consists of 278 conjuncts, 13 conjunts are in the unsatisfiable core [2023-11-29 05:36:24,057 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:36:24,547 INFO L134 CoverageAnalysis]: Checked inductivity of 335 backedges. 146 proven. 139 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2023-11-29 05:36:24,548 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 05:36:24,876 INFO L134 CoverageAnalysis]: Checked inductivity of 335 backedges. 130 proven. 139 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2023-11-29 05:36:24,876 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:36:24,877 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1209419351] [2023-11-29 05:36:24,877 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 05:36:24,877 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1469004020] [2023-11-29 05:36:24,877 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1469004020] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 05:36:24,877 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 05:36:24,877 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 21 [2023-11-29 05:36:24,877 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1429003894] [2023-11-29 05:36:24,877 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 05:36:24,878 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2023-11-29 05:36:24,878 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:36:24,879 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2023-11-29 05:36:24,879 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=360, Unknown=0, NotChecked=0, Total=420 [2023-11-29 05:36:24,879 INFO L87 Difference]: Start difference. First operand 1652 states and 1769 transitions. Second operand has 21 states, 21 states have (on average 12.19047619047619) internal successors, (256), 21 states have internal predecessors, (256), 12 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (16), 12 states have call predecessors, (16), 12 states have call successors, (16) [2023-11-29 05:36:26,918 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:36:26,918 INFO L93 Difference]: Finished difference Result 1960 states and 2098 transitions. [2023-11-29 05:36:26,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2023-11-29 05:36:26,919 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 12.19047619047619) internal successors, (256), 21 states have internal predecessors, (256), 12 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (16), 12 states have call predecessors, (16), 12 states have call successors, (16) Word has length 193 [2023-11-29 05:36:26,920 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:36:26,927 INFO L225 Difference]: With dead ends: 1960 [2023-11-29 05:36:26,927 INFO L226 Difference]: Without dead ends: 1641 [2023-11-29 05:36:26,929 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 401 GetRequests, 365 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 223 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=251, Invalid=1155, Unknown=0, NotChecked=0, Total=1406 [2023-11-29 05:36:26,929 INFO L413 NwaCegarLoop]: 37 mSDtfsCounter, 223 mSDsluCounter, 368 mSDsCounter, 0 mSdLazyCounter, 1317 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 224 SdHoareTripleChecker+Valid, 405 SdHoareTripleChecker+Invalid, 1342 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 1317 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-11-29 05:36:26,929 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [224 Valid, 405 Invalid, 1342 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 1317 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-11-29 05:36:26,931 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1641 states. [2023-11-29 05:36:27,156 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1641 to 1611. [2023-11-29 05:36:27,157 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1611 states, 1549 states have (on average 1.038089089735313) internal successors, (1608), 1550 states have internal predecessors, (1608), 58 states have call successors, (58), 2 states have call predecessors, (58), 2 states have return successors, (58), 58 states have call predecessors, (58), 58 states have call successors, (58) [2023-11-29 05:36:27,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1611 states to 1611 states and 1724 transitions. [2023-11-29 05:36:27,161 INFO L78 Accepts]: Start accepts. Automaton has 1611 states and 1724 transitions. Word has length 193 [2023-11-29 05:36:27,162 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:36:27,162 INFO L495 AbstractCegarLoop]: Abstraction has 1611 states and 1724 transitions. [2023-11-29 05:36:27,162 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 12.19047619047619) internal successors, (256), 21 states have internal predecessors, (256), 12 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (16), 12 states have call predecessors, (16), 12 states have call successors, (16) [2023-11-29 05:36:27,162 INFO L276 IsEmpty]: Start isEmpty. Operand 1611 states and 1724 transitions. [2023-11-29 05:36:27,163 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2023-11-29 05:36:27,163 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:36:27,164 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2023-11-29 05:36:27,168 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eddeddc0-fd7c-454d-a152-3b12d7ae0c1b/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Ended with exit code 0 [2023-11-29 05:36:27,364 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31,30 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eddeddc0-fd7c-454d-a152-3b12d7ae0c1b/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:36:27,364 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2023-11-29 05:36:27,364 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:36:27,364 INFO L85 PathProgramCache]: Analyzing trace with hash 350421169, now seen corresponding path program 5 times [2023-11-29 05:36:27,365 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:36:27,365 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [655916050] [2023-11-29 05:36:27,365 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:36:27,365 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:36:27,374 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 05:36:27,374 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [590104309] [2023-11-29 05:36:27,374 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2023-11-29 05:36:27,375 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:36:27,375 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eddeddc0-fd7c-454d-a152-3b12d7ae0c1b/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:36:27,375 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eddeddc0-fd7c-454d-a152-3b12d7ae0c1b/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 05:36:27,376 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eddeddc0-fd7c-454d-a152-3b12d7ae0c1b/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Waiting until timeout for monitored process [2023-11-29 05:36:29,179 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 7 check-sat command(s) [2023-11-29 05:36:29,179 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 05:36:29,182 INFO L262 TraceCheckSpWp]: Trace formula consists of 316 conjuncts, 31 conjunts are in the unsatisfiable core [2023-11-29 05:36:29,185 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:36:49,510 WARN L293 SmtUtils]: Spent 8.01s on a formula simplification that was a NOOP. DAG size: 20 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-11-29 05:37:29,606 WARN L293 SmtUtils]: Spent 8.01s on a formula simplification that was a NOOP. DAG size: 20 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-11-29 05:37:53,663 WARN L293 SmtUtils]: Spent 8.01s on a formula simplification that was a NOOP. DAG size: 20 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-11-29 05:41:02,219 WARN L293 SmtUtils]: Spent 8.02s on a formula simplification that was a NOOP. DAG size: 21 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-11-29 05:41:26,341 WARN L293 SmtUtils]: Spent 8.03s on a formula simplification that was a NOOP. DAG size: 22 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-11-29 05:41:50,473 WARN L293 SmtUtils]: Spent 8.01s on a formula simplification that was a NOOP. DAG size: 22 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)