./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/lcm1_unwindbound50.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version a0165632 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_170d178d-99b9-4fdb-be8c-98490093f5e6/bin/utaipan-verify-YMUCfTKeje/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_170d178d-99b9-4fdb-be8c-98490093f5e6/bin/utaipan-verify-YMUCfTKeje/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_170d178d-99b9-4fdb-be8c-98490093f5e6/bin/utaipan-verify-YMUCfTKeje/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_170d178d-99b9-4fdb-be8c-98490093f5e6/bin/utaipan-verify-YMUCfTKeje/config/TaipanReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/lcm1_unwindbound50.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_170d178d-99b9-4fdb-be8c-98490093f5e6/bin/utaipan-verify-YMUCfTKeje/config/svcomp-Overflow-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_170d178d-99b9-4fdb-be8c-98490093f5e6/bin/utaipan-verify-YMUCfTKeje --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 6ac61a60e8702da390cdc74b87fa3424e0fd152a4ccfcd2c9fd7af24a4bb7ac5 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-09 01:08:38,097 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 01:08:38,182 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_170d178d-99b9-4fdb-be8c-98490093f5e6/bin/utaipan-verify-YMUCfTKeje/config/svcomp-Overflow-32bit-Taipan_Default.epf [2024-11-09 01:08:38,189 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 01:08:38,191 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 01:08:38,228 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 01:08:38,228 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 01:08:38,229 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 01:08:38,229 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 01:08:38,230 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 01:08:38,230 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-09 01:08:38,231 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-09 01:08:38,231 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-09 01:08:38,231 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-09 01:08:38,232 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-09 01:08:38,232 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-09 01:08:38,232 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-09 01:08:38,233 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-09 01:08:38,233 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-09 01:08:38,234 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-09 01:08:38,234 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-09 01:08:38,235 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-09 01:08:38,235 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 01:08:38,236 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 01:08:38,236 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 01:08:38,237 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 01:08:38,237 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 01:08:38,237 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 01:08:38,237 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 01:08:38,238 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 01:08:38,238 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 01:08:38,239 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 01:08:38,239 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-09 01:08:38,239 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-09 01:08:38,240 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 01:08:38,240 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 01:08:38,240 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 01:08:38,241 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 01:08:38,241 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 01:08:38,241 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 01:08:38,242 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 01:08:38,242 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 01:08:38,243 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 01:08:38,243 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 01:08:38,243 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-09 01:08:38,244 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 01:08:38,244 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 01:08:38,244 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-09 01:08:38,244 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-09 01:08:38,245 INFO L153 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_170d178d-99b9-4fdb-be8c-98490093f5e6/bin/utaipan-verify-YMUCfTKeje/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_170d178d-99b9-4fdb-be8c-98490093f5e6/bin/utaipan-verify-YMUCfTKeje Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6ac61a60e8702da390cdc74b87fa3424e0fd152a4ccfcd2c9fd7af24a4bb7ac5 [2024-11-09 01:08:38,559 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 01:08:38,596 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 01:08:38,600 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 01:08:38,602 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 01:08:38,602 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 01:08:38,604 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_170d178d-99b9-4fdb-be8c-98490093f5e6/bin/utaipan-verify-YMUCfTKeje/../../sv-benchmarks/c/nla-digbench-scaling/lcm1_unwindbound50.c Unable to find full path for "g++" [2024-11-09 01:08:40,637 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 01:08:40,825 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 01:08:40,826 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_170d178d-99b9-4fdb-be8c-98490093f5e6/sv-benchmarks/c/nla-digbench-scaling/lcm1_unwindbound50.c [2024-11-09 01:08:40,834 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_170d178d-99b9-4fdb-be8c-98490093f5e6/bin/utaipan-verify-YMUCfTKeje/data/ed8696211/6a46a8a21b0a4e31be5a9adfcf479c46/FLAG6bd9fe9fa [2024-11-09 01:08:40,849 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_170d178d-99b9-4fdb-be8c-98490093f5e6/bin/utaipan-verify-YMUCfTKeje/data/ed8696211/6a46a8a21b0a4e31be5a9adfcf479c46 [2024-11-09 01:08:40,852 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 01:08:40,853 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 01:08:40,854 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 01:08:40,854 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 01:08:40,861 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 01:08:40,862 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 01:08:40" (1/1) ... [2024-11-09 01:08:40,864 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@406dde44 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:08:40, skipping insertion in model container [2024-11-09 01:08:40,864 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 01:08:40" (1/1) ... [2024-11-09 01:08:40,901 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 01:08:41,148 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 01:08:41,159 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 01:08:41,184 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 01:08:41,204 INFO L204 MainTranslator]: Completed translation [2024-11-09 01:08:41,205 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:08:41 WrapperNode [2024-11-09 01:08:41,205 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 01:08:41,206 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 01:08:41,207 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 01:08:41,207 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 01:08:41,216 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:08:41" (1/1) ... [2024-11-09 01:08:41,223 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:08:41" (1/1) ... [2024-11-09 01:08:41,258 INFO L138 Inliner]: procedures = 14, calls = 24, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 87 [2024-11-09 01:08:41,258 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 01:08:41,259 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 01:08:41,264 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 01:08:41,264 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 01:08:41,277 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:08:41" (1/1) ... [2024-11-09 01:08:41,278 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:08:41" (1/1) ... [2024-11-09 01:08:41,283 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:08:41" (1/1) ... [2024-11-09 01:08:41,284 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:08:41" (1/1) ... [2024-11-09 01:08:41,286 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:08:41" (1/1) ... [2024-11-09 01:08:41,298 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:08:41" (1/1) ... [2024-11-09 01:08:41,300 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:08:41" (1/1) ... [2024-11-09 01:08:41,301 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:08:41" (1/1) ... [2024-11-09 01:08:41,302 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 01:08:41,307 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 01:08:41,309 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 01:08:41,309 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 01:08:41,310 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:08:41" (1/1) ... [2024-11-09 01:08:41,317 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 01:08:41,331 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_170d178d-99b9-4fdb-be8c-98490093f5e6/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 01:08:41,346 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_170d178d-99b9-4fdb-be8c-98490093f5e6/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-09 01:08:41,352 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_170d178d-99b9-4fdb-be8c-98490093f5e6/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-09 01:08:41,385 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 01:08:41,385 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-09 01:08:41,385 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-09 01:08:41,386 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-09 01:08:41,386 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 01:08:41,388 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 01:08:41,388 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-09 01:08:41,389 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-09 01:08:41,476 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 01:08:41,480 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 01:08:41,811 INFO L? ?]: Removed 11 outVars from TransFormulas that were not future-live. [2024-11-09 01:08:41,812 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 01:08:41,875 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 01:08:41,877 INFO L316 CfgBuilder]: Removed 3 assume(true) statements. [2024-11-09 01:08:41,878 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 01:08:41 BoogieIcfgContainer [2024-11-09 01:08:41,878 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 01:08:41,881 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 01:08:41,882 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 01:08:41,887 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 01:08:41,888 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 01:08:40" (1/3) ... [2024-11-09 01:08:41,888 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5997cb7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 01:08:41, skipping insertion in model container [2024-11-09 01:08:41,889 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:08:41" (2/3) ... [2024-11-09 01:08:41,890 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5997cb7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 01:08:41, skipping insertion in model container [2024-11-09 01:08:41,891 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 01:08:41" (3/3) ... [2024-11-09 01:08:41,892 INFO L112 eAbstractionObserver]: Analyzing ICFG lcm1_unwindbound50.c [2024-11-09 01:08:41,913 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 01:08:41,914 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2024-11-09 01:08:42,001 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 01:08:42,010 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@4176104d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 01:08:42,010 INFO L334 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2024-11-09 01:08:42,015 INFO L276 IsEmpty]: Start isEmpty. Operand has 38 states, 20 states have (on average 1.75) internal successors, (35), 26 states have internal predecessors, (35), 9 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-11-09 01:08:42,024 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2024-11-09 01:08:42,025 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 01:08:42,026 INFO L215 NwaCegarLoop]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 01:08:42,027 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-11-09 01:08:42,034 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 01:08:42,035 INFO L85 PathProgramCache]: Analyzing trace with hash 1238323755, now seen corresponding path program 1 times [2024-11-09 01:08:42,066 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 01:08:42,067 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [17852031] [2024-11-09 01:08:42,068 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:08:42,069 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 01:08:42,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:08:42,412 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-09 01:08:42,413 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 01:08:42,413 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [17852031] [2024-11-09 01:08:42,414 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [17852031] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 01:08:42,414 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 01:08:42,414 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 01:08:42,420 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [806518999] [2024-11-09 01:08:42,420 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 01:08:42,425 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 01:08:42,426 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 01:08:42,455 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 01:08:42,456 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 01:08:42,458 INFO L87 Difference]: Start difference. First operand has 38 states, 20 states have (on average 1.75) internal successors, (35), 26 states have internal predecessors, (35), 9 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) Second operand has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 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) [2024-11-09 01:08:42,583 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 01:08:42,584 INFO L93 Difference]: Finished difference Result 72 states and 103 transitions. [2024-11-09 01:08:42,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 01:08:42,587 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 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 16 [2024-11-09 01:08:42,588 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 01:08:42,595 INFO L225 Difference]: With dead ends: 72 [2024-11-09 01:08:42,595 INFO L226 Difference]: Without dead ends: 38 [2024-11-09 01:08:42,599 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-09 01:08:42,604 INFO L432 NwaCegarLoop]: 42 mSDtfsCounter, 9 mSDsluCounter, 69 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 111 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 01:08:42,608 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 111 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 01:08:42,626 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2024-11-09 01:08:42,650 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 37. [2024-11-09 01:08:42,652 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37 states, 22 states have (on average 1.4545454545454546) internal successors, (32), 27 states have internal predecessors, (32), 7 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-11-09 01:08:42,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 46 transitions. [2024-11-09 01:08:42,657 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 46 transitions. Word has length 16 [2024-11-09 01:08:42,661 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 01:08:42,661 INFO L471 AbstractCegarLoop]: Abstraction has 37 states and 46 transitions. [2024-11-09 01:08:42,662 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 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) [2024-11-09 01:08:42,662 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 46 transitions. [2024-11-09 01:08:42,664 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2024-11-09 01:08:42,664 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 01:08:42,665 INFO L215 NwaCegarLoop]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 01:08:42,665 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-09 01:08:42,666 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-11-09 01:08:42,667 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 01:08:42,667 INFO L85 PathProgramCache]: Analyzing trace with hash 1746164020, now seen corresponding path program 1 times [2024-11-09 01:08:42,668 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 01:08:42,668 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [566937370] [2024-11-09 01:08:42,669 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:08:42,669 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 01:08:42,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:08:42,956 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-09 01:08:42,957 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 01:08:42,957 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [566937370] [2024-11-09 01:08:42,958 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [566937370] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 01:08:42,958 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 01:08:42,958 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-09 01:08:42,958 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1910611835] [2024-11-09 01:08:42,958 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 01:08:42,960 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-09 01:08:42,960 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 01:08:42,961 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-09 01:08:42,961 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-09 01:08:42,962 INFO L87 Difference]: Start difference. First operand 37 states and 46 transitions. Second operand has 7 states, 6 states have (on average 1.8333333333333333) internal successors, (11), 7 states have internal predecessors, (11), 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) [2024-11-09 01:08:43,162 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 01:08:43,162 INFO L93 Difference]: Finished difference Result 55 states and 67 transitions. [2024-11-09 01:08:43,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-09 01:08:43,165 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 1.8333333333333333) internal successors, (11), 7 states have internal predecessors, (11), 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 24 [2024-11-09 01:08:43,165 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 01:08:43,166 INFO L225 Difference]: With dead ends: 55 [2024-11-09 01:08:43,166 INFO L226 Difference]: Without dead ends: 54 [2024-11-09 01:08:43,166 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-11-09 01:08:43,169 INFO L432 NwaCegarLoop]: 29 mSDtfsCounter, 24 mSDsluCounter, 96 mSDsCounter, 0 mSdLazyCounter, 79 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 125 SdHoareTripleChecker+Invalid, 80 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 79 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-09 01:08:43,170 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 125 Invalid, 80 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 79 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-09 01:08:43,171 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2024-11-09 01:08:43,178 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 48. [2024-11-09 01:08:43,179 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48 states, 30 states have (on average 1.4333333333333333) internal successors, (43), 35 states have internal predecessors, (43), 9 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-11-09 01:08:43,180 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 61 transitions. [2024-11-09 01:08:43,180 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 61 transitions. Word has length 24 [2024-11-09 01:08:43,180 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 01:08:43,181 INFO L471 AbstractCegarLoop]: Abstraction has 48 states and 61 transitions. [2024-11-09 01:08:43,181 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 1.8333333333333333) internal successors, (11), 7 states have internal predecessors, (11), 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) [2024-11-09 01:08:43,181 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 61 transitions. [2024-11-09 01:08:43,182 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2024-11-09 01:08:43,182 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 01:08:43,182 INFO L215 NwaCegarLoop]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 01:08:43,182 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-09 01:08:43,183 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-11-09 01:08:43,183 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 01:08:43,183 INFO L85 PathProgramCache]: Analyzing trace with hash -1703490164, now seen corresponding path program 1 times [2024-11-09 01:08:43,183 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 01:08:43,184 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2086120765] [2024-11-09 01:08:43,184 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:08:43,184 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 01:08:43,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:08:43,334 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-09 01:08:43,334 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 01:08:43,335 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2086120765] [2024-11-09 01:08:43,335 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2086120765] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 01:08:43,335 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 01:08:43,335 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-09 01:08:43,336 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1002181750] [2024-11-09 01:08:43,336 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 01:08:43,336 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-09 01:08:43,337 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 01:08:43,337 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-09 01:08:43,337 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-11-09 01:08:43,338 INFO L87 Difference]: Start difference. First operand 48 states and 61 transitions. Second operand has 7 states, 6 states have (on average 2.0) internal successors, (12), 7 states have internal predecessors, (12), 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) [2024-11-09 01:08:43,470 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 01:08:43,471 INFO L93 Difference]: Finished difference Result 80 states and 100 transitions. [2024-11-09 01:08:43,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-09 01:08:43,472 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 2.0) internal successors, (12), 7 states have internal predecessors, (12), 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 25 [2024-11-09 01:08:43,472 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 01:08:43,474 INFO L225 Difference]: With dead ends: 80 [2024-11-09 01:08:43,474 INFO L226 Difference]: Without dead ends: 54 [2024-11-09 01:08:43,475 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-09 01:08:43,476 INFO L432 NwaCegarLoop]: 32 mSDtfsCounter, 14 mSDsluCounter, 102 mSDsCounter, 0 mSdLazyCounter, 78 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 134 SdHoareTripleChecker+Invalid, 84 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 78 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 01:08:43,476 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 134 Invalid, 84 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 78 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 01:08:43,477 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2024-11-09 01:08:43,485 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 54. [2024-11-09 01:08:43,485 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54 states, 35 states have (on average 1.3714285714285714) internal successors, (48), 40 states have internal predecessors, (48), 9 states have call successors, (9), 4 states have call predecessors, (9), 4 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-11-09 01:08:43,486 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 66 transitions. [2024-11-09 01:08:43,487 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 66 transitions. Word has length 25 [2024-11-09 01:08:43,487 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 01:08:43,487 INFO L471 AbstractCegarLoop]: Abstraction has 54 states and 66 transitions. [2024-11-09 01:08:43,488 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 2.0) internal successors, (12), 7 states have internal predecessors, (12), 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) [2024-11-09 01:08:43,488 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 66 transitions. [2024-11-09 01:08:43,489 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2024-11-09 01:08:43,489 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 01:08:43,489 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-09 01:08:43,490 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-09 01:08:43,490 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-11-09 01:08:43,490 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 01:08:43,491 INFO L85 PathProgramCache]: Analyzing trace with hash 755097098, now seen corresponding path program 1 times [2024-11-09 01:08:43,491 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 01:08:43,491 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1197108348] [2024-11-09 01:08:43,491 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:08:43,492 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 01:08:43,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:08:43,756 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-09 01:08:43,757 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 01:08:43,757 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1197108348] [2024-11-09 01:08:43,757 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1197108348] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 01:08:43,758 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 01:08:43,758 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-09 01:08:43,758 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1689210539] [2024-11-09 01:08:43,758 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 01:08:43,759 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-09 01:08:43,759 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 01:08:43,760 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-09 01:08:43,760 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-11-09 01:08:43,760 INFO L87 Difference]: Start difference. First operand 54 states and 66 transitions. Second operand has 9 states, 8 states have (on average 2.0) internal successors, (16), 9 states have internal predecessors, (16), 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) [2024-11-09 01:08:44,040 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 01:08:44,042 INFO L93 Difference]: Finished difference Result 70 states and 83 transitions. [2024-11-09 01:08:44,042 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-09 01:08:44,043 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 2.0) internal successors, (16), 9 states have internal predecessors, (16), 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 32 [2024-11-09 01:08:44,043 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 01:08:44,044 INFO L225 Difference]: With dead ends: 70 [2024-11-09 01:08:44,046 INFO L226 Difference]: Without dead ends: 69 [2024-11-09 01:08:44,047 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2024-11-09 01:08:44,048 INFO L432 NwaCegarLoop]: 26 mSDtfsCounter, 48 mSDsluCounter, 116 mSDsCounter, 0 mSdLazyCounter, 189 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 142 SdHoareTripleChecker+Invalid, 194 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 189 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-09 01:08:44,049 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [48 Valid, 142 Invalid, 194 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 189 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-09 01:08:44,052 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states. [2024-11-09 01:08:44,066 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 62. [2024-11-09 01:08:44,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62 states, 41 states have (on average 1.3902439024390243) internal successors, (57), 46 states have internal predecessors, (57), 10 states have call successors, (10), 5 states have call predecessors, (10), 5 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-11-09 01:08:44,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 77 transitions. [2024-11-09 01:08:44,070 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 77 transitions. Word has length 32 [2024-11-09 01:08:44,072 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 01:08:44,072 INFO L471 AbstractCegarLoop]: Abstraction has 62 states and 77 transitions. [2024-11-09 01:08:44,073 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 2.0) internal successors, (16), 9 states have internal predecessors, (16), 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) [2024-11-09 01:08:44,073 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 77 transitions. [2024-11-09 01:08:44,074 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2024-11-09 01:08:44,074 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 01:08:44,074 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-09 01:08:44,074 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-09 01:08:44,074 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-11-09 01:08:44,075 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 01:08:44,075 INFO L85 PathProgramCache]: Analyzing trace with hash 1933173643, now seen corresponding path program 1 times [2024-11-09 01:08:44,075 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 01:08:44,077 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1021499585] [2024-11-09 01:08:44,078 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:08:44,078 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 01:08:44,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:08:44,288 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-09 01:08:44,288 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 01:08:44,288 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1021499585] [2024-11-09 01:08:44,289 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1021499585] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 01:08:44,289 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 01:08:44,290 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-09 01:08:44,290 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [190227172] [2024-11-09 01:08:44,290 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 01:08:44,291 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-09 01:08:44,292 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 01:08:44,292 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-09 01:08:44,293 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-11-09 01:08:44,293 INFO L87 Difference]: Start difference. First operand 62 states and 77 transitions. Second operand has 9 states, 8 states have (on average 2.125) internal successors, (17), 9 states have internal predecessors, (17), 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) [2024-11-09 01:08:44,488 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 01:08:44,489 INFO L93 Difference]: Finished difference Result 100 states and 124 transitions. [2024-11-09 01:08:44,489 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-09 01:08:44,489 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 2.125) internal successors, (17), 9 states have internal predecessors, (17), 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 33 [2024-11-09 01:08:44,490 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 01:08:44,490 INFO L225 Difference]: With dead ends: 100 [2024-11-09 01:08:44,490 INFO L226 Difference]: Without dead ends: 74 [2024-11-09 01:08:44,491 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=42, Invalid=114, Unknown=0, NotChecked=0, Total=156 [2024-11-09 01:08:44,492 INFO L432 NwaCegarLoop]: 28 mSDtfsCounter, 28 mSDsluCounter, 113 mSDsCounter, 0 mSdLazyCounter, 119 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 141 SdHoareTripleChecker+Invalid, 126 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 119 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 01:08:44,493 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [28 Valid, 141 Invalid, 126 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 119 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 01:08:44,494 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2024-11-09 01:08:44,503 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 70. [2024-11-09 01:08:44,503 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 70 states, 47 states have (on average 1.3617021276595744) internal successors, (64), 52 states have internal predecessors, (64), 11 states have call successors, (11), 6 states have call predecessors, (11), 6 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2024-11-09 01:08:44,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 86 transitions. [2024-11-09 01:08:44,507 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 86 transitions. Word has length 33 [2024-11-09 01:08:44,507 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 01:08:44,507 INFO L471 AbstractCegarLoop]: Abstraction has 70 states and 86 transitions. [2024-11-09 01:08:44,508 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 2.125) internal successors, (17), 9 states have internal predecessors, (17), 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) [2024-11-09 01:08:44,508 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 86 transitions. [2024-11-09 01:08:44,511 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2024-11-09 01:08:44,511 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 01:08:44,512 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-09 01:08:44,512 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-09 01:08:44,512 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-11-09 01:08:44,513 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 01:08:44,513 INFO L85 PathProgramCache]: Analyzing trace with hash 1933212372, now seen corresponding path program 1 times [2024-11-09 01:08:44,513 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 01:08:44,513 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2020631835] [2024-11-09 01:08:44,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:08:44,513 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 01:08:44,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:08:44,798 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-09 01:08:44,798 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 01:08:44,799 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2020631835] [2024-11-09 01:08:44,799 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2020631835] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 01:08:44,799 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1271724894] [2024-11-09 01:08:44,799 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:08:44,799 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 01:08:44,800 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_170d178d-99b9-4fdb-be8c-98490093f5e6/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 01:08:44,804 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_170d178d-99b9-4fdb-be8c-98490093f5e6/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 01:08:44,806 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_170d178d-99b9-4fdb-be8c-98490093f5e6/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-09 01:08:44,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:08:44,884 INFO L255 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-09 01:08:44,890 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 01:08:45,040 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-09 01:08:45,040 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 01:08:45,248 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-09 01:08:45,249 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1271724894] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 01:08:45,249 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1069339119] [2024-11-09 01:08:45,278 INFO L159 IcfgInterpreter]: Started Sifa with 23 locations of interest [2024-11-09 01:08:45,278 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 01:08:45,287 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 01:08:45,292 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 01:08:45,293 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 01:08:49,238 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 119 for LOIs [2024-11-09 01:08:49,420 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 7 for LOIs [2024-11-09 01:08:49,422 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 01:08:52,730 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '1227#(and (<= 1 |#StackHeapBarrier|) (<= 1 ~counter~0))' at error location [2024-11-09 01:08:52,730 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 01:08:52,731 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 01:08:52,731 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 6, 6] total 18 [2024-11-09 01:08:52,733 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1755552206] [2024-11-09 01:08:52,733 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 01:08:52,733 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-11-09 01:08:52,738 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 01:08:52,738 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-11-09 01:08:52,739 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=281, Invalid=1201, Unknown=0, NotChecked=0, Total=1482 [2024-11-09 01:08:52,740 INFO L87 Difference]: Start difference. First operand 70 states and 86 transitions. Second operand has 19 states, 18 states have (on average 2.5) internal successors, (45), 19 states have internal predecessors, (45), 8 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (14), 8 states have call predecessors, (14), 8 states have call successors, (14) [2024-11-09 01:08:53,367 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 01:08:53,367 INFO L93 Difference]: Finished difference Result 200 states and 250 transitions. [2024-11-09 01:08:53,368 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2024-11-09 01:08:53,368 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 18 states have (on average 2.5) internal successors, (45), 19 states have internal predecessors, (45), 8 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (14), 8 states have call predecessors, (14), 8 states have call successors, (14) Word has length 33 [2024-11-09 01:08:53,368 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 01:08:53,369 INFO L225 Difference]: With dead ends: 200 [2024-11-09 01:08:53,370 INFO L226 Difference]: Without dead ends: 166 [2024-11-09 01:08:53,371 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 117 GetRequests, 67 SyntacticMatches, 1 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 948 ImplicationChecksByTransitivity, 3.7s TimeCoverageRelationStatistics Valid=458, Invalid=2092, Unknown=0, NotChecked=0, Total=2550 [2024-11-09 01:08:53,372 INFO L432 NwaCegarLoop]: 28 mSDtfsCounter, 114 mSDsluCounter, 229 mSDsCounter, 0 mSdLazyCounter, 248 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 114 SdHoareTripleChecker+Valid, 257 SdHoareTripleChecker+Invalid, 260 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 248 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-09 01:08:53,373 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [114 Valid, 257 Invalid, 260 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 248 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-09 01:08:53,374 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 166 states. [2024-11-09 01:08:53,387 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 166 to 134. [2024-11-09 01:08:53,387 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 134 states, 96 states have (on average 1.3541666666666667) internal successors, (130), 101 states have internal predecessors, (130), 18 states have call successors, (18), 14 states have call predecessors, (18), 14 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2024-11-09 01:08:53,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134 states to 134 states and 166 transitions. [2024-11-09 01:08:53,389 INFO L78 Accepts]: Start accepts. Automaton has 134 states and 166 transitions. Word has length 33 [2024-11-09 01:08:53,389 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 01:08:53,389 INFO L471 AbstractCegarLoop]: Abstraction has 134 states and 166 transitions. [2024-11-09 01:08:53,390 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 18 states have (on average 2.5) internal successors, (45), 19 states have internal predecessors, (45), 8 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (14), 8 states have call predecessors, (14), 8 states have call successors, (14) [2024-11-09 01:08:53,390 INFO L276 IsEmpty]: Start isEmpty. Operand 134 states and 166 transitions. [2024-11-09 01:08:53,391 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2024-11-09 01:08:53,391 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 01:08:53,391 INFO L215 NwaCegarLoop]: trace histogram [4, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 01:08:53,407 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_170d178d-99b9-4fdb-be8c-98490093f5e6/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-09 01:08:53,592 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_170d178d-99b9-4fdb-be8c-98490093f5e6/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 01:08:53,592 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-11-09 01:08:53,592 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 01:08:53,593 INFO L85 PathProgramCache]: Analyzing trace with hash -819553455, now seen corresponding path program 1 times [2024-11-09 01:08:53,593 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 01:08:53,593 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [651690392] [2024-11-09 01:08:53,593 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:08:53,593 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 01:08:53,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:08:53,687 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-09 01:08:53,687 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 01:08:53,688 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [651690392] [2024-11-09 01:08:53,688 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [651690392] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 01:08:53,688 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 01:08:53,688 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 01:08:53,688 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [695215003] [2024-11-09 01:08:53,688 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 01:08:53,689 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 01:08:53,689 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 01:08:53,689 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 01:08:53,690 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-09 01:08:53,690 INFO L87 Difference]: Start difference. First operand 134 states and 166 transitions. Second operand has 4 states, 4 states have (on average 5.25) internal successors, (21), 4 states have internal predecessors, (21), 3 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-09 01:08:53,801 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 01:08:53,802 INFO L93 Difference]: Finished difference Result 231 states and 290 transitions. [2024-11-09 01:08:53,802 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 01:08:53,803 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.25) internal successors, (21), 4 states have internal predecessors, (21), 3 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 40 [2024-11-09 01:08:53,803 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 01:08:53,804 INFO L225 Difference]: With dead ends: 231 [2024-11-09 01:08:53,805 INFO L226 Difference]: Without dead ends: 176 [2024-11-09 01:08:53,805 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-09 01:08:53,806 INFO L432 NwaCegarLoop]: 66 mSDtfsCounter, 32 mSDsluCounter, 85 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 151 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 01:08:53,807 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 151 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 01:08:53,808 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 176 states. [2024-11-09 01:08:53,823 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 176 to 154. [2024-11-09 01:08:53,824 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 154 states, 112 states have (on average 1.3660714285714286) internal successors, (153), 117 states have internal predecessors, (153), 22 states have call successors, (22), 14 states have call predecessors, (22), 14 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) [2024-11-09 01:08:53,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154 states to 154 states and 197 transitions. [2024-11-09 01:08:53,826 INFO L78 Accepts]: Start accepts. Automaton has 154 states and 197 transitions. Word has length 40 [2024-11-09 01:08:53,826 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 01:08:53,826 INFO L471 AbstractCegarLoop]: Abstraction has 154 states and 197 transitions. [2024-11-09 01:08:53,827 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.25) internal successors, (21), 4 states have internal predecessors, (21), 3 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-09 01:08:53,827 INFO L276 IsEmpty]: Start isEmpty. Operand 154 states and 197 transitions. [2024-11-09 01:08:53,828 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2024-11-09 01:08:53,828 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 01:08:53,828 INFO L215 NwaCegarLoop]: trace histogram [4, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 01:08:53,828 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-09 01:08:53,829 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-11-09 01:08:53,830 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 01:08:53,831 INFO L85 PathProgramCache]: Analyzing trace with hash 363746018, now seen corresponding path program 1 times [2024-11-09 01:08:53,831 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 01:08:53,831 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1416173685] [2024-11-09 01:08:53,831 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:08:53,831 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 01:08:53,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:08:54,051 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-09 01:08:54,051 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 01:08:54,052 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1416173685] [2024-11-09 01:08:54,052 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1416173685] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 01:08:54,052 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2101650089] [2024-11-09 01:08:54,052 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:08:54,052 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 01:08:54,053 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_170d178d-99b9-4fdb-be8c-98490093f5e6/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 01:08:54,054 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_170d178d-99b9-4fdb-be8c-98490093f5e6/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 01:08:54,058 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_170d178d-99b9-4fdb-be8c-98490093f5e6/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-09 01:08:54,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:08:54,120 INFO L255 TraceCheckSpWp]: Trace formula consists of 119 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-09 01:08:54,122 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 01:08:54,271 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-09 01:08:54,271 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 01:08:54,469 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-09 01:08:54,470 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2101650089] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 01:08:54,470 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1496463883] [2024-11-09 01:08:54,472 INFO L159 IcfgInterpreter]: Started Sifa with 29 locations of interest [2024-11-09 01:08:54,472 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 01:08:54,473 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 01:08:54,473 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 01:08:54,473 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 01:08:56,629 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 10 for LOIs [2024-11-09 01:08:56,630 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 7 for LOIs [2024-11-09 01:08:56,631 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 01:09:05,490 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '2571#(and (= (mod (* |ULTIMATE.start_main_~u~0#1| |ULTIMATE.start_main_~x~0#1|) 4294967296) (mod (* |ULTIMATE.start_main_~a~0#1| |ULTIMATE.start_main_~b~0#1|) 4294967296)) (<= 1 |#StackHeapBarrier|) (<= 2147483647 ~counter~0) (<= (+ (mod |ULTIMATE.start_main_~x~0#1| 4294967296) 1) (mod (+ |ULTIMATE.start_main_~x~0#1| |ULTIMATE.start_main_~y~0#1|) 4294967296)) (= |ULTIMATE.start_main_~v~0#1| 0))' at error location [2024-11-09 01:09:05,490 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 01:09:05,490 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 01:09:05,490 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 8, 8] total 24 [2024-11-09 01:09:05,491 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [697744711] [2024-11-09 01:09:05,491 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 01:09:05,491 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2024-11-09 01:09:05,491 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 01:09:05,492 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2024-11-09 01:09:05,493 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=390, Invalid=1866, Unknown=0, NotChecked=0, Total=2256 [2024-11-09 01:09:05,494 INFO L87 Difference]: Start difference. First operand 154 states and 197 transitions. Second operand has 25 states, 24 states have (on average 2.5416666666666665) internal successors, (61), 25 states have internal predecessors, (61), 11 states have call successors, (17), 4 states have call predecessors, (17), 4 states have return successors, (17), 11 states have call predecessors, (17), 11 states have call successors, (17) [2024-11-09 01:09:06,485 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 01:09:06,485 INFO L93 Difference]: Finished difference Result 324 states and 418 transitions. [2024-11-09 01:09:06,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2024-11-09 01:09:06,487 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 24 states have (on average 2.5416666666666665) internal successors, (61), 25 states have internal predecessors, (61), 11 states have call successors, (17), 4 states have call predecessors, (17), 4 states have return successors, (17), 11 states have call predecessors, (17), 11 states have call successors, (17) Word has length 41 [2024-11-09 01:09:06,487 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 01:09:06,491 INFO L225 Difference]: With dead ends: 324 [2024-11-09 01:09:06,491 INFO L226 Difference]: Without dead ends: 251 [2024-11-09 01:09:06,495 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 156 GetRequests, 82 SyntacticMatches, 3 SemanticMatches, 71 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1910 ImplicationChecksByTransitivity, 9.6s TimeCoverageRelationStatistics Valid=788, Invalid=4468, Unknown=0, NotChecked=0, Total=5256 [2024-11-09 01:09:06,498 INFO L432 NwaCegarLoop]: 22 mSDtfsCounter, 181 mSDsluCounter, 214 mSDsCounter, 0 mSdLazyCounter, 415 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 181 SdHoareTripleChecker+Valid, 236 SdHoareTripleChecker+Invalid, 438 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 415 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-09 01:09:06,498 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [181 Valid, 236 Invalid, 438 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 415 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-09 01:09:06,499 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 251 states. [2024-11-09 01:09:06,533 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 251 to 218. [2024-11-09 01:09:06,536 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 218 states, 161 states have (on average 1.3540372670807452) internal successors, (218), 166 states have internal predecessors, (218), 29 states have call successors, (29), 22 states have call predecessors, (29), 22 states have return successors, (29), 29 states have call predecessors, (29), 29 states have call successors, (29) [2024-11-09 01:09:06,538 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 218 states to 218 states and 276 transitions. [2024-11-09 01:09:06,538 INFO L78 Accepts]: Start accepts. Automaton has 218 states and 276 transitions. Word has length 41 [2024-11-09 01:09:06,539 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 01:09:06,539 INFO L471 AbstractCegarLoop]: Abstraction has 218 states and 276 transitions. [2024-11-09 01:09:06,539 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 24 states have (on average 2.5416666666666665) internal successors, (61), 25 states have internal predecessors, (61), 11 states have call successors, (17), 4 states have call predecessors, (17), 4 states have return successors, (17), 11 states have call predecessors, (17), 11 states have call successors, (17) [2024-11-09 01:09:06,539 INFO L276 IsEmpty]: Start isEmpty. Operand 218 states and 276 transitions. [2024-11-09 01:09:06,540 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2024-11-09 01:09:06,540 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 01:09:06,540 INFO L215 NwaCegarLoop]: trace histogram [4, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 01:09:06,563 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_170d178d-99b9-4fdb-be8c-98490093f5e6/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-09 01:09:06,743 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_170d178d-99b9-4fdb-be8c-98490093f5e6/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2024-11-09 01:09:06,744 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-11-09 01:09:06,744 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 01:09:06,744 INFO L85 PathProgramCache]: Analyzing trace with hash 1403810247, now seen corresponding path program 1 times [2024-11-09 01:09:06,745 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 01:09:06,745 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1577964749] [2024-11-09 01:09:06,745 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:09:06,745 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 01:09:06,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:09:06,931 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 2 proven. 6 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-09 01:09:06,931 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 01:09:06,931 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1577964749] [2024-11-09 01:09:06,931 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1577964749] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 01:09:06,931 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1083125597] [2024-11-09 01:09:06,931 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:09:06,932 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 01:09:06,932 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_170d178d-99b9-4fdb-be8c-98490093f5e6/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 01:09:06,936 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_170d178d-99b9-4fdb-be8c-98490093f5e6/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 01:09:06,938 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_170d178d-99b9-4fdb-be8c-98490093f5e6/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-09 01:09:06,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:09:06,998 INFO L255 TraceCheckSpWp]: Trace formula consists of 125 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-09 01:09:07,000 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 01:09:07,084 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 2 proven. 12 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-09 01:09:07,084 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 01:09:07,259 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 2 proven. 6 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-09 01:09:07,259 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1083125597] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 01:09:07,259 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [881745242] [2024-11-09 01:09:07,262 INFO L159 IcfgInterpreter]: Started Sifa with 27 locations of interest [2024-11-09 01:09:07,263 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 01:09:07,264 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 01:09:07,264 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 01:09:07,264 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 01:09:10,320 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 10 for LOIs [2024-11-09 01:09:10,322 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 7 for LOIs [2024-11-09 01:09:10,324 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 01:09:20,567 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [881745242] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 01:09:20,567 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2024-11-09 01:09:20,567 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [11, 9, 10] total 43 [2024-11-09 01:09:20,568 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [128464607] [2024-11-09 01:09:20,568 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 01:09:20,569 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2024-11-09 01:09:20,569 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 01:09:20,570 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2024-11-09 01:09:20,570 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=240, Invalid=1566, Unknown=0, NotChecked=0, Total=1806 [2024-11-09 01:09:20,570 INFO L87 Difference]: Start difference. First operand 218 states and 276 transitions. Second operand has 24 states, 16 states have (on average 1.25) internal successors, (20), 16 states have internal predecessors, (20), 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) [2024-11-09 01:09:25,203 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 [] [2024-11-09 01:09:33,375 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2024-11-09 01:09:34,391 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-09 01:09:38,512 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 01:09:38,512 INFO L93 Difference]: Finished difference Result 371 states and 469 transitions. [2024-11-09 01:09:38,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2024-11-09 01:09:38,513 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 16 states have (on average 1.25) internal successors, (20), 16 states have internal predecessors, (20), 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) Word has length 44 [2024-11-09 01:09:38,514 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 01:09:38,515 INFO L225 Difference]: With dead ends: 371 [2024-11-09 01:09:38,515 INFO L226 Difference]: Without dead ends: 270 [2024-11-09 01:09:38,517 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 158 GetRequests, 97 SyntacticMatches, 4 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1252 ImplicationChecksByTransitivity, 19.5s TimeCoverageRelationStatistics Valid=422, Invalid=3000, Unknown=0, NotChecked=0, Total=3422 [2024-11-09 01:09:38,518 INFO L432 NwaCegarLoop]: 13 mSDtfsCounter, 67 mSDsluCounter, 115 mSDsCounter, 0 mSdLazyCounter, 662 mSolverCounterSat, 24 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 67 SdHoareTripleChecker+Valid, 128 SdHoareTripleChecker+Invalid, 688 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 662 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.8s IncrementalHoareTripleChecker+Time [2024-11-09 01:09:38,518 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [67 Valid, 128 Invalid, 688 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 662 Invalid, 2 Unknown, 0 Unchecked, 8.8s Time] [2024-11-09 01:09:38,519 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 270 states. [2024-11-09 01:09:38,552 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 270 to 233. [2024-11-09 01:09:38,552 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 233 states, 176 states have (on average 1.3465909090909092) internal successors, (237), 181 states have internal predecessors, (237), 29 states have call successors, (29), 22 states have call predecessors, (29), 22 states have return successors, (29), 29 states have call predecessors, (29), 29 states have call successors, (29) [2024-11-09 01:09:38,554 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 233 states to 233 states and 295 transitions. [2024-11-09 01:09:38,554 INFO L78 Accepts]: Start accepts. Automaton has 233 states and 295 transitions. Word has length 44 [2024-11-09 01:09:38,555 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 01:09:38,555 INFO L471 AbstractCegarLoop]: Abstraction has 233 states and 295 transitions. [2024-11-09 01:09:38,555 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 16 states have (on average 1.25) internal successors, (20), 16 states have internal predecessors, (20), 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) [2024-11-09 01:09:38,555 INFO L276 IsEmpty]: Start isEmpty. Operand 233 states and 295 transitions. [2024-11-09 01:09:38,556 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2024-11-09 01:09:38,556 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 01:09:38,558 INFO L215 NwaCegarLoop]: trace histogram [4, 3, 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] [2024-11-09 01:09:38,578 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_170d178d-99b9-4fdb-be8c-98490093f5e6/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-09 01:09:38,758 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_170d178d-99b9-4fdb-be8c-98490093f5e6/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 01:09:38,759 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-11-09 01:09:38,759 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 01:09:38,759 INFO L85 PathProgramCache]: Analyzing trace with hash 568444742, now seen corresponding path program 1 times [2024-11-09 01:09:38,759 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 01:09:38,760 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1231978077] [2024-11-09 01:09:38,760 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:09:38,760 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 01:09:38,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:09:38,932 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 3 proven. 6 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-09 01:09:38,932 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 01:09:38,932 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1231978077] [2024-11-09 01:09:38,933 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1231978077] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 01:09:38,933 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [241632003] [2024-11-09 01:09:38,933 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:09:38,933 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 01:09:38,933 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_170d178d-99b9-4fdb-be8c-98490093f5e6/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 01:09:38,935 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_170d178d-99b9-4fdb-be8c-98490093f5e6/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 01:09:38,937 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_170d178d-99b9-4fdb-be8c-98490093f5e6/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-09 01:09:38,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:09:38,992 INFO L255 TraceCheckSpWp]: Trace formula consists of 126 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-09 01:09:38,994 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 01:09:39,077 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 3 proven. 12 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-09 01:09:39,077 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 01:09:39,246 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 3 proven. 6 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-09 01:09:39,246 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [241632003] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 01:09:39,247 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [493831302] [2024-11-09 01:09:39,249 INFO L159 IcfgInterpreter]: Started Sifa with 27 locations of interest [2024-11-09 01:09:39,249 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 01:09:39,250 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 01:09:39,250 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 01:09:39,250 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 01:09:42,201 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 10 for LOIs [2024-11-09 01:09:42,203 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 7 for LOIs [2024-11-09 01:09:42,205 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 01:09:49,768 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '4918#(and (= (mod (* |ULTIMATE.start_main_~a~0#1| |ULTIMATE.start_main_~b~0#1|) 4294967296) (mod (+ (* |ULTIMATE.start_main_~v~0#1| |ULTIMATE.start_main_~y~0#1|) (* |ULTIMATE.start_main_~u~0#1| |ULTIMATE.start_main_~x~0#1|)) 4294967296)) (<= 1 |#StackHeapBarrier|) (= ~counter~0 2147483647) (<= (mod |ULTIMATE.start_main_~x~0#1| 4294967296) (mod |ULTIMATE.start_main_~y~0#1| 4294967296)))' at error location [2024-11-09 01:09:49,769 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 01:09:49,769 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 01:09:49,769 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 9, 10] total 21 [2024-11-09 01:09:49,769 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1708478307] [2024-11-09 01:09:49,769 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 01:09:49,770 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2024-11-09 01:09:49,770 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 01:09:49,771 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2024-11-09 01:09:49,771 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=246, Invalid=1646, Unknown=0, NotChecked=0, Total=1892 [2024-11-09 01:09:49,771 INFO L87 Difference]: Start difference. First operand 233 states and 295 transitions. Second operand has 21 states, 21 states have (on average 2.7142857142857144) internal successors, (57), 21 states have internal predecessors, (57), 9 states have call successors, (21), 5 states have call predecessors, (21), 5 states have return successors, (21), 9 states have call predecessors, (21), 9 states have call successors, (21) [2024-11-09 01:09:50,402 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 01:09:50,402 INFO L93 Difference]: Finished difference Result 408 states and 520 transitions. [2024-11-09 01:09:50,402 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2024-11-09 01:09:50,403 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 2.7142857142857144) internal successors, (57), 21 states have internal predecessors, (57), 9 states have call successors, (21), 5 states have call predecessors, (21), 5 states have return successors, (21), 9 states have call predecessors, (21), 9 states have call successors, (21) Word has length 45 [2024-11-09 01:09:50,403 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 01:09:50,405 INFO L225 Difference]: With dead ends: 408 [2024-11-09 01:09:50,405 INFO L226 Difference]: Without dead ends: 286 [2024-11-09 01:09:50,407 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 162 GetRequests, 98 SyntacticMatches, 4 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1415 ImplicationChecksByTransitivity, 8.0s TimeCoverageRelationStatistics Valid=450, Invalid=3332, Unknown=0, NotChecked=0, Total=3782 [2024-11-09 01:09:50,407 INFO L432 NwaCegarLoop]: 29 mSDtfsCounter, 83 mSDsluCounter, 236 mSDsCounter, 0 mSdLazyCounter, 265 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 83 SdHoareTripleChecker+Valid, 265 SdHoareTripleChecker+Invalid, 277 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 265 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-09 01:09:50,408 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [83 Valid, 265 Invalid, 277 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 265 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-09 01:09:50,409 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 286 states. [2024-11-09 01:09:50,443 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 286 to 277. [2024-11-09 01:09:50,444 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 277 states, 212 states have (on average 1.3066037735849056) internal successors, (277), 217 states have internal predecessors, (277), 33 states have call successors, (33), 26 states have call predecessors, (33), 26 states have return successors, (33), 33 states have call predecessors, (33), 33 states have call successors, (33) [2024-11-09 01:09:50,446 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 277 states to 277 states and 343 transitions. [2024-11-09 01:09:50,446 INFO L78 Accepts]: Start accepts. Automaton has 277 states and 343 transitions. Word has length 45 [2024-11-09 01:09:50,447 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 01:09:50,447 INFO L471 AbstractCegarLoop]: Abstraction has 277 states and 343 transitions. [2024-11-09 01:09:50,447 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 2.7142857142857144) internal successors, (57), 21 states have internal predecessors, (57), 9 states have call successors, (21), 5 states have call predecessors, (21), 5 states have return successors, (21), 9 states have call predecessors, (21), 9 states have call successors, (21) [2024-11-09 01:09:50,447 INFO L276 IsEmpty]: Start isEmpty. Operand 277 states and 343 transitions. [2024-11-09 01:09:50,448 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2024-11-09 01:09:50,449 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 01:09:50,449 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 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] [2024-11-09 01:09:50,471 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_170d178d-99b9-4fdb-be8c-98490093f5e6/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-09 01:09:50,649 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_170d178d-99b9-4fdb-be8c-98490093f5e6/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2024-11-09 01:09:50,650 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-11-09 01:09:50,651 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 01:09:50,651 INFO L85 PathProgramCache]: Analyzing trace with hash 841845786, now seen corresponding path program 1 times [2024-11-09 01:09:50,651 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 01:09:50,651 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [669757604] [2024-11-09 01:09:50,652 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:09:50,652 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 01:09:50,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:09:50,897 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 6 proven. 2 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-09 01:09:50,897 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 01:09:50,897 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [669757604] [2024-11-09 01:09:50,897 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [669757604] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 01:09:50,898 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1958569215] [2024-11-09 01:09:50,898 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:09:50,898 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 01:09:50,898 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_170d178d-99b9-4fdb-be8c-98490093f5e6/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 01:09:50,900 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_170d178d-99b9-4fdb-be8c-98490093f5e6/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 01:09:50,902 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_170d178d-99b9-4fdb-be8c-98490093f5e6/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-09 01:09:50,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:09:50,966 INFO L255 TraceCheckSpWp]: Trace formula consists of 132 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-09 01:09:50,968 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 01:09:51,171 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-09 01:09:51,171 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 01:09:51,172 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1958569215] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 01:09:51,172 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 01:09:51,172 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [12] total 21 [2024-11-09 01:09:51,172 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1786003688] [2024-11-09 01:09:51,172 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 01:09:51,173 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-09 01:09:51,173 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 01:09:51,176 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-09 01:09:51,176 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=93, Invalid=369, Unknown=0, NotChecked=0, Total=462 [2024-11-09 01:09:51,176 INFO L87 Difference]: Start difference. First operand 277 states and 343 transitions. Second operand has 11 states, 10 states have (on average 2.9) internal successors, (29), 11 states have internal predecessors, (29), 5 states have call successors, (8), 5 states have call predecessors, (8), 5 states have return successors, (8), 5 states have call predecessors, (8), 5 states have call successors, (8) [2024-11-09 01:09:51,449 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 01:09:51,449 INFO L93 Difference]: Finished difference Result 333 states and 413 transitions. [2024-11-09 01:09:51,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-09 01:09:51,450 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.9) internal successors, (29), 11 states have internal predecessors, (29), 5 states have call successors, (8), 5 states have call predecessors, (8), 5 states have return successors, (8), 5 states have call predecessors, (8), 5 states have call successors, (8) Word has length 48 [2024-11-09 01:09:51,450 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 01:09:51,452 INFO L225 Difference]: With dead ends: 333 [2024-11-09 01:09:51,452 INFO L226 Difference]: Without dead ends: 330 [2024-11-09 01:09:51,453 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 231 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=168, Invalid=824, Unknown=0, NotChecked=0, Total=992 [2024-11-09 01:09:51,453 INFO L432 NwaCegarLoop]: 23 mSDtfsCounter, 62 mSDsluCounter, 98 mSDsCounter, 0 mSdLazyCounter, 157 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 121 SdHoareTripleChecker+Invalid, 176 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 157 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 01:09:51,453 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [62 Valid, 121 Invalid, 176 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 157 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 01:09:51,454 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 330 states. [2024-11-09 01:09:51,486 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 330 to 268. [2024-11-09 01:09:51,486 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 268 states, 205 states have (on average 1.2195121951219512) internal successors, (250), 208 states have internal predecessors, (250), 33 states have call successors, (33), 27 states have call predecessors, (33), 27 states have return successors, (33), 32 states have call predecessors, (33), 33 states have call successors, (33) [2024-11-09 01:09:51,488 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 268 states to 268 states and 316 transitions. [2024-11-09 01:09:51,488 INFO L78 Accepts]: Start accepts. Automaton has 268 states and 316 transitions. Word has length 48 [2024-11-09 01:09:51,488 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 01:09:51,488 INFO L471 AbstractCegarLoop]: Abstraction has 268 states and 316 transitions. [2024-11-09 01:09:51,489 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 2.9) internal successors, (29), 11 states have internal predecessors, (29), 5 states have call successors, (8), 5 states have call predecessors, (8), 5 states have return successors, (8), 5 states have call predecessors, (8), 5 states have call successors, (8) [2024-11-09 01:09:51,489 INFO L276 IsEmpty]: Start isEmpty. Operand 268 states and 316 transitions. [2024-11-09 01:09:51,490 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2024-11-09 01:09:51,491 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 01:09:51,491 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-09 01:09:51,510 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_170d178d-99b9-4fdb-be8c-98490093f5e6/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-09 01:09:51,695 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_170d178d-99b9-4fdb-be8c-98490093f5e6/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2024-11-09 01:09:51,695 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-11-09 01:09:51,695 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 01:09:51,695 INFO L85 PathProgramCache]: Analyzing trace with hash 327415635, now seen corresponding path program 1 times [2024-11-09 01:09:51,696 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 01:09:51,696 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [523198021] [2024-11-09 01:09:51,696 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:09:51,696 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 01:09:51,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:09:51,919 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-09 01:09:51,919 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 01:09:51,919 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [523198021] [2024-11-09 01:09:51,919 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [523198021] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 01:09:51,919 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1454704776] [2024-11-09 01:09:51,919 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:09:51,919 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 01:09:51,920 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_170d178d-99b9-4fdb-be8c-98490093f5e6/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 01:09:51,921 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_170d178d-99b9-4fdb-be8c-98490093f5e6/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 01:09:51,922 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_170d178d-99b9-4fdb-be8c-98490093f5e6/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-09 01:09:51,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:09:51,969 INFO L255 TraceCheckSpWp]: Trace formula consists of 133 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-09 01:09:51,971 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 01:09:52,139 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 3 proven. 18 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-09 01:09:52,139 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 01:09:52,351 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 3 proven. 6 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-09 01:09:52,351 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1454704776] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 01:09:52,351 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1725180556] [2024-11-09 01:09:52,357 INFO L159 IcfgInterpreter]: Started Sifa with 29 locations of interest [2024-11-09 01:09:52,357 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 01:09:52,358 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 01:09:52,358 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 01:09:52,358 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 01:09:54,575 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 1 for LOIs [2024-11-09 01:09:54,576 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 7 for LOIs [2024-11-09 01:09:54,577 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 01:09:58,417 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '7346#(and (<= 1 |#StackHeapBarrier|) (<= 0 ~counter~0) (= |ULTIMATE.start_main_~v~0#1| 0))' at error location [2024-11-09 01:09:58,417 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 01:09:58,417 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 01:09:58,417 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 10, 10] total 30 [2024-11-09 01:09:58,417 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [465181041] [2024-11-09 01:09:58,417 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 01:09:58,418 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2024-11-09 01:09:58,418 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 01:09:58,419 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2024-11-09 01:09:58,420 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=445, Invalid=2525, Unknown=0, NotChecked=0, Total=2970 [2024-11-09 01:09:58,420 INFO L87 Difference]: Start difference. First operand 268 states and 316 transitions. Second operand has 31 states, 30 states have (on average 2.566666666666667) internal successors, (77), 31 states have internal predecessors, (77), 14 states have call successors, (20), 5 states have call predecessors, (20), 5 states have return successors, (20), 14 states have call predecessors, (20), 14 states have call successors, (20) [2024-11-09 01:09:59,330 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 01:09:59,330 INFO L93 Difference]: Finished difference Result 302 states and 358 transitions. [2024-11-09 01:09:59,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2024-11-09 01:09:59,331 INFO L78 Accepts]: Start accepts. Automaton has has 31 states, 30 states have (on average 2.566666666666667) internal successors, (77), 31 states have internal predecessors, (77), 14 states have call successors, (20), 5 states have call predecessors, (20), 5 states have return successors, (20), 14 states have call predecessors, (20), 14 states have call successors, (20) Word has length 49 [2024-11-09 01:09:59,331 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 01:09:59,337 INFO L225 Difference]: With dead ends: 302 [2024-11-09 01:09:59,337 INFO L226 Difference]: Without dead ends: 301 [2024-11-09 01:09:59,339 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 187 GetRequests, 101 SyntacticMatches, 3 SemanticMatches, 83 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2546 ImplicationChecksByTransitivity, 4.7s TimeCoverageRelationStatistics Valid=978, Invalid=6162, Unknown=0, NotChecked=0, Total=7140 [2024-11-09 01:09:59,340 INFO L432 NwaCegarLoop]: 23 mSDtfsCounter, 176 mSDsluCounter, 212 mSDsCounter, 0 mSdLazyCounter, 368 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 176 SdHoareTripleChecker+Valid, 235 SdHoareTripleChecker+Invalid, 401 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 368 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-09 01:09:59,340 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [176 Valid, 235 Invalid, 401 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 368 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-09 01:09:59,342 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 301 states. [2024-11-09 01:09:59,375 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 301 to 279. [2024-11-09 01:09:59,376 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 279 states, 214 states have (on average 1.2149532710280373) internal successors, (260), 217 states have internal predecessors, (260), 34 states have call successors, (34), 28 states have call predecessors, (34), 28 states have return successors, (34), 33 states have call predecessors, (34), 34 states have call successors, (34) [2024-11-09 01:09:59,377 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 279 states to 279 states and 328 transitions. [2024-11-09 01:09:59,377 INFO L78 Accepts]: Start accepts. Automaton has 279 states and 328 transitions. Word has length 49 [2024-11-09 01:09:59,377 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 01:09:59,378 INFO L471 AbstractCegarLoop]: Abstraction has 279 states and 328 transitions. [2024-11-09 01:09:59,378 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 30 states have (on average 2.566666666666667) internal successors, (77), 31 states have internal predecessors, (77), 14 states have call successors, (20), 5 states have call predecessors, (20), 5 states have return successors, (20), 14 states have call predecessors, (20), 14 states have call successors, (20) [2024-11-09 01:09:59,378 INFO L276 IsEmpty]: Start isEmpty. Operand 279 states and 328 transitions. [2024-11-09 01:09:59,379 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2024-11-09 01:09:59,379 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 01:09:59,379 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 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] [2024-11-09 01:09:59,400 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_170d178d-99b9-4fdb-be8c-98490093f5e6/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-09 01:09:59,580 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_170d178d-99b9-4fdb-be8c-98490093f5e6/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2024-11-09 01:09:59,580 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-11-09 01:09:59,581 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 01:09:59,581 INFO L85 PathProgramCache]: Analyzing trace with hash -1173271556, now seen corresponding path program 1 times [2024-11-09 01:09:59,581 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 01:09:59,581 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1762852400] [2024-11-09 01:09:59,581 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:09:59,581 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 01:09:59,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:09:59,837 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 52 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2024-11-09 01:09:59,838 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 01:09:59,838 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1762852400] [2024-11-09 01:09:59,838 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1762852400] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 01:09:59,838 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [148472137] [2024-11-09 01:09:59,838 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:09:59,838 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 01:09:59,838 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_170d178d-99b9-4fdb-be8c-98490093f5e6/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 01:09:59,839 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_170d178d-99b9-4fdb-be8c-98490093f5e6/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 01:09:59,840 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_170d178d-99b9-4fdb-be8c-98490093f5e6/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-09 01:09:59,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:09:59,900 INFO L255 TraceCheckSpWp]: Trace formula consists of 166 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-09 01:09:59,902 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 01:10:00,018 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 72 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-09 01:10:00,019 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 01:10:00,258 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 52 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2024-11-09 01:10:00,259 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [148472137] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 01:10:00,259 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1884342118] [2024-11-09 01:10:00,262 INFO L159 IcfgInterpreter]: Started Sifa with 26 locations of interest [2024-11-09 01:10:00,262 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 01:10:00,263 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 01:10:00,263 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 01:10:00,263 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 01:10:01,691 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 119 for LOIs [2024-11-09 01:10:01,798 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 7 for LOIs [2024-11-09 01:10:01,799 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 01:10:04,749 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '8666#(and (<= 1 |#StackHeapBarrier|) (= ~counter~0 2147483647))' at error location [2024-11-09 01:10:04,749 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 01:10:04,750 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 01:10:04,750 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 13, 14] total 29 [2024-11-09 01:10:04,750 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1978770801] [2024-11-09 01:10:04,751 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 01:10:04,752 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2024-11-09 01:10:04,752 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 01:10:04,754 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2024-11-09 01:10:04,754 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=427, Invalid=2123, Unknown=0, NotChecked=0, Total=2550 [2024-11-09 01:10:04,755 INFO L87 Difference]: Start difference. First operand 279 states and 328 transitions. Second operand has 29 states, 29 states have (on average 2.7241379310344827) internal successors, (79), 29 states have internal predecessors, (79), 13 states have call successors, (27), 7 states have call predecessors, (27), 7 states have return successors, (27), 13 states have call predecessors, (27), 13 states have call successors, (27) [2024-11-09 01:10:05,693 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 01:10:05,693 INFO L93 Difference]: Finished difference Result 468 states and 559 transitions. [2024-11-09 01:10:05,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2024-11-09 01:10:05,694 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 29 states have (on average 2.7241379310344827) internal successors, (79), 29 states have internal predecessors, (79), 13 states have call successors, (27), 7 states have call predecessors, (27), 7 states have return successors, (27), 13 states have call predecessors, (27), 13 states have call successors, (27) Word has length 61 [2024-11-09 01:10:05,694 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 01:10:05,696 INFO L225 Difference]: With dead ends: 468 [2024-11-09 01:10:05,697 INFO L226 Difference]: Without dead ends: 335 [2024-11-09 01:10:05,702 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 216 GetRequests, 145 SyntacticMatches, 2 SemanticMatches, 69 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1913 ImplicationChecksByTransitivity, 3.7s TimeCoverageRelationStatistics Valid=876, Invalid=4094, Unknown=0, NotChecked=0, Total=4970 [2024-11-09 01:10:05,703 INFO L432 NwaCegarLoop]: 29 mSDtfsCounter, 124 mSDsluCounter, 332 mSDsCounter, 0 mSdLazyCounter, 252 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 124 SdHoareTripleChecker+Valid, 361 SdHoareTripleChecker+Invalid, 260 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 252 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-09 01:10:05,703 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [124 Valid, 361 Invalid, 260 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 252 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-09 01:10:05,704 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 335 states. [2024-11-09 01:10:05,762 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 335 to 312. [2024-11-09 01:10:05,763 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 312 states, 239 states have (on average 1.205020920502092) internal successors, (288), 242 states have internal predecessors, (288), 38 states have call successors, (38), 32 states have call predecessors, (38), 32 states have return successors, (38), 37 states have call predecessors, (38), 38 states have call successors, (38) [2024-11-09 01:10:05,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 312 states to 312 states and 364 transitions. [2024-11-09 01:10:05,765 INFO L78 Accepts]: Start accepts. Automaton has 312 states and 364 transitions. Word has length 61 [2024-11-09 01:10:05,766 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 01:10:05,766 INFO L471 AbstractCegarLoop]: Abstraction has 312 states and 364 transitions. [2024-11-09 01:10:05,766 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 2.7241379310344827) internal successors, (79), 29 states have internal predecessors, (79), 13 states have call successors, (27), 7 states have call predecessors, (27), 7 states have return successors, (27), 13 states have call predecessors, (27), 13 states have call successors, (27) [2024-11-09 01:10:05,766 INFO L276 IsEmpty]: Start isEmpty. Operand 312 states and 364 transitions. [2024-11-09 01:10:05,769 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-11-09 01:10:05,769 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 01:10:05,770 INFO L215 NwaCegarLoop]: trace histogram [6, 4, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2024-11-09 01:10:05,793 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_170d178d-99b9-4fdb-be8c-98490093f5e6/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-11-09 01:10:05,974 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_170d178d-99b9-4fdb-be8c-98490093f5e6/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 01:10:05,974 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-11-09 01:10:05,974 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 01:10:05,974 INFO L85 PathProgramCache]: Analyzing trace with hash -1604035127, now seen corresponding path program 1 times [2024-11-09 01:10:05,975 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 01:10:05,975 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [143123218] [2024-11-09 01:10:05,975 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:10:05,975 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 01:10:05,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:10:06,312 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2024-11-09 01:10:06,313 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 01:10:06,313 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [143123218] [2024-11-09 01:10:06,313 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [143123218] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 01:10:06,313 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [213080534] [2024-11-09 01:10:06,313 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:10:06,313 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 01:10:06,313 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_170d178d-99b9-4fdb-be8c-98490093f5e6/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 01:10:06,314 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_170d178d-99b9-4fdb-be8c-98490093f5e6/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 01:10:06,316 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_170d178d-99b9-4fdb-be8c-98490093f5e6/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-09 01:10:06,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:10:06,372 INFO L255 TraceCheckSpWp]: Trace formula consists of 173 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-09 01:10:06,374 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 01:10:06,649 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 60 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-09 01:10:06,650 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 01:10:07,029 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2024-11-09 01:10:07,029 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [213080534] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 01:10:07,029 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1284005702] [2024-11-09 01:10:07,031 INFO L159 IcfgInterpreter]: Started Sifa with 29 locations of interest [2024-11-09 01:10:07,031 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 01:10:07,032 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 01:10:07,032 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 01:10:07,032 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 01:10:08,534 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 79 for LOIs [2024-11-09 01:10:08,551 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 7 for LOIs [2024-11-09 01:10:08,553 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 01:10:18,667 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '10294#(and (<= 1 |#StackHeapBarrier|) (exists ((|v_ULTIMATE.start_main_#t~post8#1_47| Int)) (and (= (mod (* |ULTIMATE.start_main_~a~0#1| |ULTIMATE.start_main_~b~0#1|) 4294967296) (mod (+ (* |ULTIMATE.start_main_~v~0#1| |ULTIMATE.start_main_~y~0#1|) (* |ULTIMATE.start_main_~u~0#1| |ULTIMATE.start_main_~x~0#1|)) 4294967296)) (= ~counter~0 |v_ULTIMATE.start_main_#t~post8#1_47|) (<= 2147483647 |v_ULTIMATE.start_main_#t~post8#1_47|) (<= (mod |ULTIMATE.start_main_~x~0#1| 4294967296) (mod |ULTIMATE.start_main_~y~0#1| 4294967296)))))' at error location [2024-11-09 01:10:18,667 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 01:10:18,668 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 01:10:18,668 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 14, 14] total 42 [2024-11-09 01:10:18,668 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1484508595] [2024-11-09 01:10:18,668 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 01:10:18,669 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 43 states [2024-11-09 01:10:18,669 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 01:10:18,670 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 43 interpolants. [2024-11-09 01:10:18,671 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=705, Invalid=3717, Unknown=0, NotChecked=0, Total=4422 [2024-11-09 01:10:18,671 INFO L87 Difference]: Start difference. First operand 312 states and 364 transitions. Second operand has 43 states, 42 states have (on average 2.5952380952380953) internal successors, (109), 43 states have internal predecessors, (109), 20 states have call successors, (26), 7 states have call predecessors, (26), 7 states have return successors, (26), 20 states have call predecessors, (26), 20 states have call successors, (26) [2024-11-09 01:10:20,866 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 01:10:20,867 INFO L93 Difference]: Finished difference Result 682 states and 823 transitions. [2024-11-09 01:10:20,867 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 77 states. [2024-11-09 01:10:20,867 INFO L78 Accepts]: Start accepts. Automaton has has 43 states, 42 states have (on average 2.5952380952380953) internal successors, (109), 43 states have internal predecessors, (109), 20 states have call successors, (26), 7 states have call predecessors, (26), 7 states have return successors, (26), 20 states have call predecessors, (26), 20 states have call successors, (26) Word has length 65 [2024-11-09 01:10:20,867 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 01:10:20,870 INFO L225 Difference]: With dead ends: 682 [2024-11-09 01:10:20,870 INFO L226 Difference]: Without dead ends: 549 [2024-11-09 01:10:20,875 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 262 GetRequests, 140 SyntacticMatches, 4 SemanticMatches, 118 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4975 ImplicationChecksByTransitivity, 12.0s TimeCoverageRelationStatistics Valid=2130, Invalid=12150, Unknown=0, NotChecked=0, Total=14280 [2024-11-09 01:10:20,876 INFO L432 NwaCegarLoop]: 23 mSDtfsCounter, 466 mSDsluCounter, 172 mSDsCounter, 0 mSdLazyCounter, 442 mSolverCounterSat, 68 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 466 SdHoareTripleChecker+Valid, 195 SdHoareTripleChecker+Invalid, 510 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 68 IncrementalHoareTripleChecker+Valid, 442 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-09 01:10:20,877 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [466 Valid, 195 Invalid, 510 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [68 Valid, 442 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-09 01:10:20,878 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 549 states. [2024-11-09 01:10:20,946 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 549 to 476. [2024-11-09 01:10:20,947 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 476 states, 363 states have (on average 1.234159779614325) internal successors, (448), 366 states have internal predecessors, (448), 58 states have call successors, (58), 52 states have call predecessors, (58), 52 states have return successors, (58), 57 states have call predecessors, (58), 58 states have call successors, (58) [2024-11-09 01:10:20,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 476 states to 476 states and 564 transitions. [2024-11-09 01:10:20,949 INFO L78 Accepts]: Start accepts. Automaton has 476 states and 564 transitions. Word has length 65 [2024-11-09 01:10:20,950 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 01:10:20,950 INFO L471 AbstractCegarLoop]: Abstraction has 476 states and 564 transitions. [2024-11-09 01:10:20,950 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 43 states, 42 states have (on average 2.5952380952380953) internal successors, (109), 43 states have internal predecessors, (109), 20 states have call successors, (26), 7 states have call predecessors, (26), 7 states have return successors, (26), 20 states have call predecessors, (26), 20 states have call successors, (26) [2024-11-09 01:10:20,950 INFO L276 IsEmpty]: Start isEmpty. Operand 476 states and 564 transitions. [2024-11-09 01:10:20,951 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-11-09 01:10:20,951 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 01:10:20,951 INFO L215 NwaCegarLoop]: trace histogram [6, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 01:10:20,967 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_170d178d-99b9-4fdb-be8c-98490093f5e6/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2024-11-09 01:10:21,151 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_170d178d-99b9-4fdb-be8c-98490093f5e6/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 01:10:21,152 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-11-09 01:10:21,152 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 01:10:21,152 INFO L85 PathProgramCache]: Analyzing trace with hash 270257876, now seen corresponding path program 1 times [2024-11-09 01:10:21,153 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 01:10:21,153 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1349900401] [2024-11-09 01:10:21,153 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:10:21,153 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 01:10:21,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:10:21,498 INFO L134 CoverageAnalysis]: Checked inductivity of 81 backedges. 0 proven. 39 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2024-11-09 01:10:21,498 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 01:10:21,498 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1349900401] [2024-11-09 01:10:21,498 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1349900401] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 01:10:21,498 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1657270332] [2024-11-09 01:10:21,498 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:10:21,499 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 01:10:21,499 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_170d178d-99b9-4fdb-be8c-98490093f5e6/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 01:10:21,505 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_170d178d-99b9-4fdb-be8c-98490093f5e6/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 01:10:21,507 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_170d178d-99b9-4fdb-be8c-98490093f5e6/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-09 01:10:21,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:10:21,573 INFO L255 TraceCheckSpWp]: Trace formula consists of 169 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-09 01:10:21,576 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 01:10:21,857 INFO L134 CoverageAnalysis]: Checked inductivity of 81 backedges. 3 proven. 66 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-09 01:10:21,857 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 01:10:22,234 INFO L134 CoverageAnalysis]: Checked inductivity of 81 backedges. 3 proven. 36 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2024-11-09 01:10:22,235 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1657270332] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 01:10:22,235 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [800067421] [2024-11-09 01:10:22,237 INFO L159 IcfgInterpreter]: Started Sifa with 29 locations of interest [2024-11-09 01:10:22,237 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 01:10:22,238 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 01:10:22,238 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 01:10:22,238 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 01:10:24,211 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 1 for LOIs [2024-11-09 01:10:24,212 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 7 for LOIs [2024-11-09 01:10:24,213 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 01:10:29,475 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [800067421] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 01:10:29,475 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2024-11-09 01:10:29,475 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [16, 14, 14] total 66 [2024-11-09 01:10:29,476 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [982180599] [2024-11-09 01:10:29,476 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 01:10:29,476 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2024-11-09 01:10:29,476 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 01:10:29,477 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2024-11-09 01:10:29,478 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=702, Invalid=3720, Unknown=0, NotChecked=0, Total=4422 [2024-11-09 01:10:29,478 INFO L87 Difference]: Start difference. First operand 476 states and 564 transitions. Second operand has 26 states, 17 states have (on average 1.2352941176470589) internal successors, (21), 18 states have internal predecessors, (21), 7 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-11-09 01:10:32,757 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.78s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-09 01:10:36,227 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.96s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-09 01:10:43,998 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 01:10:43,998 INFO L93 Difference]: Finished difference Result 760 states and 904 transitions. [2024-11-09 01:10:43,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2024-11-09 01:10:43,999 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 17 states have (on average 1.2352941176470589) internal successors, (21), 18 states have internal predecessors, (21), 7 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) Word has length 65 [2024-11-09 01:10:43,999 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 01:10:44,002 INFO L225 Difference]: With dead ends: 760 [2024-11-09 01:10:44,002 INFO L226 Difference]: Without dead ends: 535 [2024-11-09 01:10:44,004 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 229 GetRequests, 146 SyntacticMatches, 1 SemanticMatches, 82 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2542 ImplicationChecksByTransitivity, 11.4s TimeCoverageRelationStatistics Valid=1072, Invalid=5900, Unknown=0, NotChecked=0, Total=6972 [2024-11-09 01:10:44,004 INFO L432 NwaCegarLoop]: 19 mSDtfsCounter, 47 mSDsluCounter, 131 mSDsCounter, 0 mSdLazyCounter, 797 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 150 SdHoareTripleChecker+Invalid, 822 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 797 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.9s IncrementalHoareTripleChecker+Time [2024-11-09 01:10:44,005 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [48 Valid, 150 Invalid, 822 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 797 Invalid, 0 Unknown, 0 Unchecked, 8.9s Time] [2024-11-09 01:10:44,006 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 535 states. [2024-11-09 01:10:44,087 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 535 to 505. [2024-11-09 01:10:44,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 505 states, 381 states have (on average 1.236220472440945) internal successors, (471), 385 states have internal predecessors, (471), 64 states have call successors, (64), 57 states have call predecessors, (64), 57 states have return successors, (64), 62 states have call predecessors, (64), 64 states have call successors, (64) [2024-11-09 01:10:44,090 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 505 states to 505 states and 599 transitions. [2024-11-09 01:10:44,091 INFO L78 Accepts]: Start accepts. Automaton has 505 states and 599 transitions. Word has length 65 [2024-11-09 01:10:44,091 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 01:10:44,091 INFO L471 AbstractCegarLoop]: Abstraction has 505 states and 599 transitions. [2024-11-09 01:10:44,092 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 17 states have (on average 1.2352941176470589) internal successors, (21), 18 states have internal predecessors, (21), 7 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-11-09 01:10:44,092 INFO L276 IsEmpty]: Start isEmpty. Operand 505 states and 599 transitions. [2024-11-09 01:10:44,093 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2024-11-09 01:10:44,093 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 01:10:44,093 INFO L215 NwaCegarLoop]: trace histogram [6, 4, 4, 4, 4, 4, 4, 4, 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] [2024-11-09 01:10:44,116 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_170d178d-99b9-4fdb-be8c-98490093f5e6/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2024-11-09 01:10:44,298 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_170d178d-99b9-4fdb-be8c-98490093f5e6/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 01:10:44,298 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-11-09 01:10:44,299 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 01:10:44,299 INFO L85 PathProgramCache]: Analyzing trace with hash 1200227757, now seen corresponding path program 1 times [2024-11-09 01:10:44,299 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 01:10:44,299 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [354953501] [2024-11-09 01:10:44,300 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:10:44,300 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 01:10:44,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:10:44,654 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 3 proven. 40 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2024-11-09 01:10:44,655 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 01:10:44,655 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [354953501] [2024-11-09 01:10:44,655 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [354953501] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 01:10:44,655 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [376183904] [2024-11-09 01:10:44,655 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:10:44,656 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 01:10:44,656 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_170d178d-99b9-4fdb-be8c-98490093f5e6/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 01:10:44,658 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_170d178d-99b9-4fdb-be8c-98490093f5e6/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 01:10:44,659 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_170d178d-99b9-4fdb-be8c-98490093f5e6/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-11-09 01:10:44,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:10:44,726 INFO L255 TraceCheckSpWp]: Trace formula consists of 180 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-09 01:10:44,728 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 01:10:44,862 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 3 proven. 70 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-09 01:10:44,863 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 01:10:45,211 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 3 proven. 40 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2024-11-09 01:10:45,211 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [376183904] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 01:10:45,211 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [209272049] [2024-11-09 01:10:45,213 INFO L159 IcfgInterpreter]: Started Sifa with 29 locations of interest [2024-11-09 01:10:45,213 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 01:10:45,213 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 01:10:45,214 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 01:10:45,214 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 01:10:48,729 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 53 for LOIs [2024-11-09 01:10:48,740 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 7 for LOIs [2024-11-09 01:10:48,741 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 01:10:56,071 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '14917#(and (<= 0 ~counter~0) (<= ~counter~0 2147483647))' at error location [2024-11-09 01:10:56,071 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 01:10:56,071 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 01:10:56,071 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 15, 16] total 33 [2024-11-09 01:10:56,071 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [131709900] [2024-11-09 01:10:56,072 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 01:10:56,072 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2024-11-09 01:10:56,072 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 01:10:56,073 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2024-11-09 01:10:56,074 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=440, Invalid=2866, Unknown=0, NotChecked=0, Total=3306 [2024-11-09 01:10:56,074 INFO L87 Difference]: Start difference. First operand 505 states and 599 transitions. Second operand has 33 states, 33 states have (on average 2.727272727272727) internal successors, (90), 33 states have internal predecessors, (90), 15 states have call successors, (30), 8 states have call predecessors, (30), 8 states have return successors, (30), 15 states have call predecessors, (30), 15 states have call successors, (30) [2024-11-09 01:10:57,471 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 01:10:57,472 INFO L93 Difference]: Finished difference Result 921 states and 1100 transitions. [2024-11-09 01:10:57,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2024-11-09 01:10:57,472 INFO L78 Accepts]: Start accepts. Automaton has has 33 states, 33 states have (on average 2.727272727272727) internal successors, (90), 33 states have internal predecessors, (90), 15 states have call successors, (30), 8 states have call predecessors, (30), 8 states have return successors, (30), 15 states have call predecessors, (30), 15 states have call successors, (30) Word has length 69 [2024-11-09 01:10:57,473 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 01:10:57,476 INFO L225 Difference]: With dead ends: 921 [2024-11-09 01:10:57,477 INFO L226 Difference]: Without dead ends: 676 [2024-11-09 01:10:57,479 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 257 GetRequests, 163 SyntacticMatches, 3 SemanticMatches, 91 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3273 ImplicationChecksByTransitivity, 8.4s TimeCoverageRelationStatistics Valid=1123, Invalid=7433, Unknown=0, NotChecked=0, Total=8556 [2024-11-09 01:10:57,480 INFO L432 NwaCegarLoop]: 26 mSDtfsCounter, 154 mSDsluCounter, 282 mSDsCounter, 0 mSdLazyCounter, 347 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 154 SdHoareTripleChecker+Valid, 308 SdHoareTripleChecker+Invalid, 360 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 347 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-09 01:10:57,480 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [154 Valid, 308 Invalid, 360 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 347 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-09 01:10:57,481 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 676 states. [2024-11-09 01:10:57,587 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 676 to 621. [2024-11-09 01:10:57,589 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 621 states, 471 states have (on average 1.2059447983014862) internal successors, (568), 475 states have internal predecessors, (568), 77 states have call successors, (77), 70 states have call predecessors, (77), 70 states have return successors, (77), 75 states have call predecessors, (77), 77 states have call successors, (77) [2024-11-09 01:10:57,591 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 621 states to 621 states and 722 transitions. [2024-11-09 01:10:57,592 INFO L78 Accepts]: Start accepts. Automaton has 621 states and 722 transitions. Word has length 69 [2024-11-09 01:10:57,592 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 01:10:57,593 INFO L471 AbstractCegarLoop]: Abstraction has 621 states and 722 transitions. [2024-11-09 01:10:57,593 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 33 states, 33 states have (on average 2.727272727272727) internal successors, (90), 33 states have internal predecessors, (90), 15 states have call successors, (30), 8 states have call predecessors, (30), 8 states have return successors, (30), 15 states have call predecessors, (30), 15 states have call successors, (30) [2024-11-09 01:10:57,593 INFO L276 IsEmpty]: Start isEmpty. Operand 621 states and 722 transitions. [2024-11-09 01:10:57,594 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2024-11-09 01:10:57,594 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 01:10:57,596 INFO L215 NwaCegarLoop]: trace histogram [7, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 01:10:57,618 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_170d178d-99b9-4fdb-be8c-98490093f5e6/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2024-11-09 01:10:57,799 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_170d178d-99b9-4fdb-be8c-98490093f5e6/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2024-11-09 01:10:57,800 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-11-09 01:10:57,800 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 01:10:57,800 INFO L85 PathProgramCache]: Analyzing trace with hash -28300486, now seen corresponding path program 1 times [2024-11-09 01:10:57,801 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 01:10:57,801 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1427909814] [2024-11-09 01:10:57,801 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:10:57,801 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 01:10:57,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:10:58,274 INFO L134 CoverageAnalysis]: Checked inductivity of 93 backedges. 0 proven. 39 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2024-11-09 01:10:58,274 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 01:10:58,274 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1427909814] [2024-11-09 01:10:58,275 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1427909814] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 01:10:58,275 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [934024170] [2024-11-09 01:10:58,275 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:10:58,275 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 01:10:58,275 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_170d178d-99b9-4fdb-be8c-98490093f5e6/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 01:10:58,276 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_170d178d-99b9-4fdb-be8c-98490093f5e6/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 01:10:58,277 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_170d178d-99b9-4fdb-be8c-98490093f5e6/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-11-09 01:10:58,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:10:58,346 INFO L255 TraceCheckSpWp]: Trace formula consists of 187 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-09 01:10:58,349 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 01:10:58,708 INFO L134 CoverageAnalysis]: Checked inductivity of 93 backedges. 3 proven. 78 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-09 01:10:58,708 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 01:10:59,176 INFO L134 CoverageAnalysis]: Checked inductivity of 93 backedges. 3 proven. 36 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2024-11-09 01:10:59,177 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [934024170] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 01:10:59,177 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1946372255] [2024-11-09 01:10:59,180 INFO L159 IcfgInterpreter]: Started Sifa with 29 locations of interest [2024-11-09 01:10:59,181 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 01:10:59,181 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 01:10:59,181 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 01:10:59,181 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 01:11:03,854 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 3 for LOIs [2024-11-09 01:11:03,855 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 7 for LOIs [2024-11-09 01:11:03,856 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 01:11:07,772 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [1946372255] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 01:11:07,772 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2024-11-09 01:11:07,773 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [18, 16, 16] total 70 [2024-11-09 01:11:07,773 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [696223811] [2024-11-09 01:11:07,773 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 01:11:07,773 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2024-11-09 01:11:07,773 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 01:11:07,774 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2024-11-09 01:11:07,775 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=963, Invalid=4007, Unknown=0, NotChecked=0, Total=4970 [2024-11-09 01:11:07,775 INFO L87 Difference]: Start difference. First operand 621 states and 722 transitions. Second operand has 25 states, 16 states have (on average 1.375) internal successors, (22), 17 states have internal predecessors, (22), 7 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-11-09 01:11:21,139 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-09 01:11:23,641 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2024-11-09 01:11:26,253 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.83s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-09 01:11:38,516 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 01:11:38,516 INFO L93 Difference]: Finished difference Result 839 states and 985 transitions. [2024-11-09 01:11:38,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2024-11-09 01:11:38,517 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 16 states have (on average 1.375) internal successors, (22), 17 states have internal predecessors, (22), 7 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) Word has length 73 [2024-11-09 01:11:38,517 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 01:11:38,521 INFO L225 Difference]: With dead ends: 839 [2024-11-09 01:11:38,521 INFO L226 Difference]: Without dead ends: 836 [2024-11-09 01:11:38,522 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 246 GetRequests, 154 SyntacticMatches, 12 SemanticMatches, 80 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3521 ImplicationChecksByTransitivity, 26.6s TimeCoverageRelationStatistics Valid=1279, Invalid=5362, Unknown=1, NotChecked=0, Total=6642 [2024-11-09 01:11:38,523 INFO L432 NwaCegarLoop]: 10 mSDtfsCounter, 56 mSDsluCounter, 75 mSDsCounter, 0 mSdLazyCounter, 494 mSolverCounterSat, 24 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 85 SdHoareTripleChecker+Invalid, 520 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 494 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.6s IncrementalHoareTripleChecker+Time [2024-11-09 01:11:38,523 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [56 Valid, 85 Invalid, 520 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 494 Invalid, 2 Unknown, 0 Unchecked, 8.6s Time] [2024-11-09 01:11:38,525 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 836 states. [2024-11-09 01:11:38,648 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 836 to 601. [2024-11-09 01:11:38,649 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 601 states, 457 states have (on average 1.2188183807439825) internal successors, (557), 461 states have internal predecessors, (557), 74 states have call successors, (74), 67 states have call predecessors, (74), 67 states have return successors, (74), 72 states have call predecessors, (74), 74 states have call successors, (74) [2024-11-09 01:11:38,651 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 601 states to 601 states and 705 transitions. [2024-11-09 01:11:38,652 INFO L78 Accepts]: Start accepts. Automaton has 601 states and 705 transitions. Word has length 73 [2024-11-09 01:11:38,653 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 01:11:38,653 INFO L471 AbstractCegarLoop]: Abstraction has 601 states and 705 transitions. [2024-11-09 01:11:38,653 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 16 states have (on average 1.375) internal successors, (22), 17 states have internal predecessors, (22), 7 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-11-09 01:11:38,653 INFO L276 IsEmpty]: Start isEmpty. Operand 601 states and 705 transitions. [2024-11-09 01:11:38,655 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2024-11-09 01:11:38,655 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 01:11:38,655 INFO L215 NwaCegarLoop]: trace histogram [7, 5, 5, 5, 4, 4, 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] [2024-11-09 01:11:38,675 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_170d178d-99b9-4fdb-be8c-98490093f5e6/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2024-11-09 01:11:38,859 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_170d178d-99b9-4fdb-be8c-98490093f5e6/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2024-11-09 01:11:38,859 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-11-09 01:11:38,859 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 01:11:38,859 INFO L85 PathProgramCache]: Analyzing trace with hash 135769250, now seen corresponding path program 2 times [2024-11-09 01:11:38,859 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 01:11:38,860 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1862641010] [2024-11-09 01:11:38,860 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:11:38,860 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 01:11:38,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:11:39,360 INFO L134 CoverageAnalysis]: Checked inductivity of 115 backedges. 3 proven. 58 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2024-11-09 01:11:39,360 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 01:11:39,360 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1862641010] [2024-11-09 01:11:39,360 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1862641010] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 01:11:39,361 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [888127017] [2024-11-09 01:11:39,361 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-09 01:11:39,361 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 01:11:39,361 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_170d178d-99b9-4fdb-be8c-98490093f5e6/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 01:11:39,363 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_170d178d-99b9-4fdb-be8c-98490093f5e6/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 01:11:39,365 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_170d178d-99b9-4fdb-be8c-98490093f5e6/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-11-09 01:11:39,431 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2024-11-09 01:11:39,431 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 01:11:39,432 INFO L255 TraceCheckSpWp]: Trace formula consists of 110 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-09 01:11:39,434 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 01:11:39,536 INFO L134 CoverageAnalysis]: Checked inductivity of 115 backedges. 39 proven. 1 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2024-11-09 01:11:39,536 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 01:11:39,716 INFO L134 CoverageAnalysis]: Checked inductivity of 115 backedges. 27 proven. 1 refuted. 0 times theorem prover too weak. 87 trivial. 0 not checked. [2024-11-09 01:11:39,716 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [888127017] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 01:11:39,716 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [861320811] [2024-11-09 01:11:39,718 INFO L159 IcfgInterpreter]: Started Sifa with 29 locations of interest [2024-11-09 01:11:39,718 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 01:11:39,718 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 01:11:39,719 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 01:11:39,719 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 01:11:43,586 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 53 for LOIs [2024-11-09 01:11:43,597 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 7 for LOIs [2024-11-09 01:11:43,598 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 01:11:53,267 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '20438#(and (<= 0 ~counter~0) (<= ~counter~0 2147483647))' at error location [2024-11-09 01:11:53,267 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 01:11:53,267 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 01:11:53,267 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 6, 6] total 29 [2024-11-09 01:11:53,267 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [63197008] [2024-11-09 01:11:53,267 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 01:11:53,268 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2024-11-09 01:11:53,268 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 01:11:53,268 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2024-11-09 01:11:53,269 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=387, Invalid=2475, Unknown=0, NotChecked=0, Total=2862 [2024-11-09 01:11:53,269 INFO L87 Difference]: Start difference. First operand 601 states and 705 transitions. Second operand has 29 states, 29 states have (on average 2.9310344827586206) internal successors, (85), 29 states have internal predecessors, (85), 11 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (20), 11 states have call predecessors, (20), 11 states have call successors, (20) [2024-11-09 01:11:54,343 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 01:11:54,343 INFO L93 Difference]: Finished difference Result 898 states and 1060 transitions. [2024-11-09 01:11:54,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2024-11-09 01:11:54,343 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 29 states have (on average 2.9310344827586206) internal successors, (85), 29 states have internal predecessors, (85), 11 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (20), 11 states have call predecessors, (20), 11 states have call successors, (20) Word has length 77 [2024-11-09 01:11:54,344 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 01:11:54,347 INFO L225 Difference]: With dead ends: 898 [2024-11-09 01:11:54,347 INFO L226 Difference]: Without dead ends: 685 [2024-11-09 01:11:54,349 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 273 GetRequests, 190 SyntacticMatches, 6 SemanticMatches, 77 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2230 ImplicationChecksByTransitivity, 10.6s TimeCoverageRelationStatistics Valid=850, Invalid=5312, Unknown=0, NotChecked=0, Total=6162 [2024-11-09 01:11:54,350 INFO L432 NwaCegarLoop]: 24 mSDtfsCounter, 129 mSDsluCounter, 259 mSDsCounter, 0 mSdLazyCounter, 377 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 129 SdHoareTripleChecker+Valid, 283 SdHoareTripleChecker+Invalid, 407 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 377 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-09 01:11:54,351 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [129 Valid, 283 Invalid, 407 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 377 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-09 01:11:54,352 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 685 states. [2024-11-09 01:11:54,460 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 685 to 493. [2024-11-09 01:11:54,461 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 493 states, 375 states have (on average 1.1893333333333334) internal successors, (446), 380 states have internal predecessors, (446), 61 states have call successors, (61), 54 states have call predecessors, (61), 54 states have return successors, (61), 58 states have call predecessors, (61), 61 states have call successors, (61) [2024-11-09 01:11:54,462 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 493 states to 493 states and 568 transitions. [2024-11-09 01:11:54,462 INFO L78 Accepts]: Start accepts. Automaton has 493 states and 568 transitions. Word has length 77 [2024-11-09 01:11:54,463 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 01:11:54,463 INFO L471 AbstractCegarLoop]: Abstraction has 493 states and 568 transitions. [2024-11-09 01:11:54,463 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 2.9310344827586206) internal successors, (85), 29 states have internal predecessors, (85), 11 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (20), 11 states have call predecessors, (20), 11 states have call successors, (20) [2024-11-09 01:11:54,463 INFO L276 IsEmpty]: Start isEmpty. Operand 493 states and 568 transitions. [2024-11-09 01:11:54,465 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2024-11-09 01:11:54,465 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 01:11:54,465 INFO L215 NwaCegarLoop]: trace histogram [8, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 01:11:54,480 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_170d178d-99b9-4fdb-be8c-98490093f5e6/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2024-11-09 01:11:54,665 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_170d178d-99b9-4fdb-be8c-98490093f5e6/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2024-11-09 01:11:54,666 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-11-09 01:11:54,666 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 01:11:54,666 INFO L85 PathProgramCache]: Analyzing trace with hash 374304935, now seen corresponding path program 1 times [2024-11-09 01:11:54,666 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 01:11:54,667 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1171942079] [2024-11-09 01:11:54,667 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:11:54,667 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 01:11:54,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:11:55,188 INFO L134 CoverageAnalysis]: Checked inductivity of 140 backedges. 18 proven. 54 refuted. 0 times theorem prover too weak. 68 trivial. 0 not checked. [2024-11-09 01:11:55,188 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 01:11:55,188 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1171942079] [2024-11-09 01:11:55,189 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1171942079] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 01:11:55,189 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1582396459] [2024-11-09 01:11:55,189 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:11:55,189 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 01:11:55,189 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_170d178d-99b9-4fdb-be8c-98490093f5e6/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 01:11:55,191 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_170d178d-99b9-4fdb-be8c-98490093f5e6/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 01:11:55,193 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_170d178d-99b9-4fdb-be8c-98490093f5e6/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2024-11-09 01:11:55,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:11:55,282 INFO L255 TraceCheckSpWp]: Trace formula consists of 215 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-11-09 01:11:55,285 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 01:11:55,459 INFO L134 CoverageAnalysis]: Checked inductivity of 140 backedges. 18 proven. 110 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-09 01:11:55,459 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 01:11:55,974 INFO L134 CoverageAnalysis]: Checked inductivity of 140 backedges. 18 proven. 54 refuted. 0 times theorem prover too weak. 68 trivial. 0 not checked. [2024-11-09 01:11:55,974 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1582396459] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 01:11:55,974 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [525723483] [2024-11-09 01:11:55,976 INFO L159 IcfgInterpreter]: Started Sifa with 29 locations of interest [2024-11-09 01:11:55,976 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 01:11:55,976 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 01:11:55,977 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 01:11:55,977 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 01:11:59,568 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 1 for LOIs [2024-11-09 01:11:59,569 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 7 for LOIs [2024-11-09 01:11:59,570 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 01:12:07,321 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '23134#(<= 0 (+ ~counter~0 2147483649))' at error location [2024-11-09 01:12:07,321 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 01:12:07,321 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 01:12:07,321 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 19, 20] total 41 [2024-11-09 01:12:07,321 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1951129188] [2024-11-09 01:12:07,321 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 01:12:07,322 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 41 states [2024-11-09 01:12:07,322 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 01:12:07,323 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 41 interpolants. [2024-11-09 01:12:07,323 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=565, Invalid=3595, Unknown=0, NotChecked=0, Total=4160 [2024-11-09 01:12:07,324 INFO L87 Difference]: Start difference. First operand 493 states and 568 transitions. Second operand has 41 states, 41 states have (on average 2.8292682926829267) internal successors, (116), 41 states have internal predecessors, (116), 19 states have call successors, (36), 10 states have call predecessors, (36), 10 states have return successors, (36), 19 states have call predecessors, (36), 19 states have call successors, (36) [2024-11-09 01:12:09,165 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 01:12:09,165 INFO L93 Difference]: Finished difference Result 926 states and 1066 transitions. [2024-11-09 01:12:09,166 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 62 states. [2024-11-09 01:12:09,166 INFO L78 Accepts]: Start accepts. Automaton has has 41 states, 41 states have (on average 2.8292682926829267) internal successors, (116), 41 states have internal predecessors, (116), 19 states have call successors, (36), 10 states have call predecessors, (36), 10 states have return successors, (36), 19 states have call predecessors, (36), 19 states have call successors, (36) Word has length 89 [2024-11-09 01:12:09,167 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 01:12:09,170 INFO L225 Difference]: With dead ends: 926 [2024-11-09 01:12:09,171 INFO L226 Difference]: Without dead ends: 776 [2024-11-09 01:12:09,173 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 327 GetRequests, 223 SyntacticMatches, 0 SemanticMatches, 104 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4039 ImplicationChecksByTransitivity, 9.5s TimeCoverageRelationStatistics Valid=1479, Invalid=9651, Unknown=0, NotChecked=0, Total=11130 [2024-11-09 01:12:09,174 INFO L432 NwaCegarLoop]: 25 mSDtfsCounter, 198 mSDsluCounter, 321 mSDsCounter, 0 mSdLazyCounter, 458 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 198 SdHoareTripleChecker+Valid, 346 SdHoareTripleChecker+Invalid, 471 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 458 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-09 01:12:09,174 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [198 Valid, 346 Invalid, 471 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 458 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-09 01:12:09,176 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 776 states. [2024-11-09 01:12:09,371 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 776 to 657. [2024-11-09 01:12:09,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 657 states, 501 states have (on average 1.1716566866267466) internal successors, (587), 506 states have internal predecessors, (587), 80 states have call successors, (80), 73 states have call predecessors, (80), 73 states have return successors, (80), 77 states have call predecessors, (80), 80 states have call successors, (80) [2024-11-09 01:12:09,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 657 states to 657 states and 747 transitions. [2024-11-09 01:12:09,375 INFO L78 Accepts]: Start accepts. Automaton has 657 states and 747 transitions. Word has length 89 [2024-11-09 01:12:09,376 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 01:12:09,376 INFO L471 AbstractCegarLoop]: Abstraction has 657 states and 747 transitions. [2024-11-09 01:12:09,376 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 41 states, 41 states have (on average 2.8292682926829267) internal successors, (116), 41 states have internal predecessors, (116), 19 states have call successors, (36), 10 states have call predecessors, (36), 10 states have return successors, (36), 19 states have call predecessors, (36), 19 states have call successors, (36) [2024-11-09 01:12:09,377 INFO L276 IsEmpty]: Start isEmpty. Operand 657 states and 747 transitions. [2024-11-09 01:12:09,379 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-11-09 01:12:09,379 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 01:12:09,379 INFO L215 NwaCegarLoop]: trace histogram [10, 6, 6, 6, 6, 6, 6, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 01:12:09,401 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_170d178d-99b9-4fdb-be8c-98490093f5e6/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2024-11-09 01:12:09,584 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_170d178d-99b9-4fdb-be8c-98490093f5e6/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 01:12:09,584 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-11-09 01:12:09,585 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 01:12:09,585 INFO L85 PathProgramCache]: Analyzing trace with hash 1608235151, now seen corresponding path program 1 times [2024-11-09 01:12:09,585 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 01:12:09,585 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1583036639] [2024-11-09 01:12:09,585 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:12:09,586 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 01:12:09,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:12:10,249 INFO L134 CoverageAnalysis]: Checked inductivity of 218 backedges. 6 proven. 110 refuted. 0 times theorem prover too weak. 102 trivial. 0 not checked. [2024-11-09 01:12:10,250 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 01:12:10,250 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1583036639] [2024-11-09 01:12:10,250 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1583036639] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 01:12:10,250 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1964007074] [2024-11-09 01:12:10,250 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:12:10,250 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 01:12:10,250 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_170d178d-99b9-4fdb-be8c-98490093f5e6/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 01:12:10,251 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_170d178d-99b9-4fdb-be8c-98490093f5e6/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 01:12:10,253 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_170d178d-99b9-4fdb-be8c-98490093f5e6/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2024-11-09 01:12:10,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:12:10,320 INFO L255 TraceCheckSpWp]: Trace formula consists of 240 conjuncts, 23 conjuncts are in the unsatisfiable core [2024-11-09 01:12:10,322 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 01:12:10,527 INFO L134 CoverageAnalysis]: Checked inductivity of 218 backedges. 6 proven. 200 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-09 01:12:10,527 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 01:12:11,196 INFO L134 CoverageAnalysis]: Checked inductivity of 218 backedges. 6 proven. 110 refuted. 0 times theorem prover too weak. 102 trivial. 0 not checked. [2024-11-09 01:12:11,196 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1964007074] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 01:12:11,196 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1849833037] [2024-11-09 01:12:11,198 INFO L159 IcfgInterpreter]: Started Sifa with 29 locations of interest [2024-11-09 01:12:11,198 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 01:12:11,198 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 01:12:11,198 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 01:12:11,198 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 01:12:13,538 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 1 for LOIs [2024-11-09 01:12:13,539 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 7 for LOIs [2024-11-09 01:12:13,541 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 01:12:18,900 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '26220#(= ~counter~0 2147483647)' at error location [2024-11-09 01:12:18,900 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 01:12:18,900 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 01:12:18,901 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25, 23, 24] total 49 [2024-11-09 01:12:18,901 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [798943657] [2024-11-09 01:12:18,901 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 01:12:18,901 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 49 states [2024-11-09 01:12:18,902 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 01:12:18,902 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 49 interpolants. [2024-11-09 01:12:18,903 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=722, Invalid=4390, Unknown=0, NotChecked=0, Total=5112 [2024-11-09 01:12:18,903 INFO L87 Difference]: Start difference. First operand 657 states and 747 transitions. Second operand has 49 states, 49 states have (on average 2.7346938775510203) internal successors, (134), 49 states have internal predecessors, (134), 23 states have call successors, (42), 12 states have call predecessors, (42), 12 states have return successors, (42), 23 states have call predecessors, (42), 23 states have call successors, (42) [2024-11-09 01:12:21,392 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 01:12:21,392 INFO L93 Difference]: Finished difference Result 1321 states and 1507 transitions. [2024-11-09 01:12:21,392 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 83 states. [2024-11-09 01:12:21,393 INFO L78 Accepts]: Start accepts. Automaton has has 49 states, 49 states have (on average 2.7346938775510203) internal successors, (134), 49 states have internal predecessors, (134), 23 states have call successors, (42), 12 states have call predecessors, (42), 12 states have return successors, (42), 23 states have call predecessors, (42), 23 states have call successors, (42) Word has length 101 [2024-11-09 01:12:21,393 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 01:12:21,398 INFO L225 Difference]: With dead ends: 1321 [2024-11-09 01:12:21,398 INFO L226 Difference]: Without dead ends: 1168 [2024-11-09 01:12:21,401 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 383 GetRequests, 253 SyntacticMatches, 3 SemanticMatches, 127 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5902 ImplicationChecksByTransitivity, 7.8s TimeCoverageRelationStatistics Valid=2343, Invalid=14169, Unknown=0, NotChecked=0, Total=16512 [2024-11-09 01:12:21,402 INFO L432 NwaCegarLoop]: 25 mSDtfsCounter, 284 mSDsluCounter, 272 mSDsCounter, 0 mSdLazyCounter, 502 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 284 SdHoareTripleChecker+Valid, 297 SdHoareTripleChecker+Invalid, 530 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 502 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-09 01:12:21,403 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [284 Valid, 297 Invalid, 530 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 502 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-09 01:12:21,404 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1168 states. [2024-11-09 01:12:21,611 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1168 to 905. [2024-11-09 01:12:21,612 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 905 states, 687 states have (on average 1.1615720524017468) internal successors, (798), 692 states have internal predecessors, (798), 111 states have call successors, (111), 104 states have call predecessors, (111), 104 states have return successors, (111), 108 states have call predecessors, (111), 111 states have call successors, (111) [2024-11-09 01:12:21,615 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 905 states to 905 states and 1020 transitions. [2024-11-09 01:12:21,616 INFO L78 Accepts]: Start accepts. Automaton has 905 states and 1020 transitions. Word has length 101 [2024-11-09 01:12:21,617 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 01:12:21,617 INFO L471 AbstractCegarLoop]: Abstraction has 905 states and 1020 transitions. [2024-11-09 01:12:21,617 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 49 states, 49 states have (on average 2.7346938775510203) internal successors, (134), 49 states have internal predecessors, (134), 23 states have call successors, (42), 12 states have call predecessors, (42), 12 states have return successors, (42), 23 states have call predecessors, (42), 23 states have call successors, (42) [2024-11-09 01:12:21,617 INFO L276 IsEmpty]: Start isEmpty. Operand 905 states and 1020 transitions. [2024-11-09 01:12:21,620 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2024-11-09 01:12:21,620 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 01:12:21,620 INFO L215 NwaCegarLoop]: trace histogram [10, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 01:12:21,641 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_170d178d-99b9-4fdb-be8c-98490093f5e6/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2024-11-09 01:12:21,820 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_170d178d-99b9-4fdb-be8c-98490093f5e6/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 01:12:21,821 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-11-09 01:12:21,821 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 01:12:21,821 INFO L85 PathProgramCache]: Analyzing trace with hash -1775135674, now seen corresponding path program 2 times [2024-11-09 01:12:21,821 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 01:12:21,821 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [811208227] [2024-11-09 01:12:21,821 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:12:21,822 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 01:12:21,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:12:22,463 INFO L134 CoverageAnalysis]: Checked inductivity of 218 backedges. 22 proven. 94 refuted. 0 times theorem prover too weak. 102 trivial. 0 not checked. [2024-11-09 01:12:22,463 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 01:12:22,463 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [811208227] [2024-11-09 01:12:22,463 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [811208227] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 01:12:22,463 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1099479690] [2024-11-09 01:12:22,463 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-09 01:12:22,464 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 01:12:22,464 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_170d178d-99b9-4fdb-be8c-98490093f5e6/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 01:12:22,465 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_170d178d-99b9-4fdb-be8c-98490093f5e6/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 01:12:22,467 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_170d178d-99b9-4fdb-be8c-98490093f5e6/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2024-11-09 01:12:22,533 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2024-11-09 01:12:22,533 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 01:12:22,535 INFO L255 TraceCheckSpWp]: Trace formula consists of 131 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-09 01:12:22,537 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 01:12:22,754 INFO L134 CoverageAnalysis]: Checked inductivity of 218 backedges. 64 proven. 1 refuted. 0 times theorem prover too weak. 153 trivial. 0 not checked. [2024-11-09 01:12:22,755 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 01:12:23,086 INFO L134 CoverageAnalysis]: Checked inductivity of 218 backedges. 46 proven. 1 refuted. 0 times theorem prover too weak. 171 trivial. 0 not checked. [2024-11-09 01:12:23,086 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1099479690] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 01:12:23,086 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1943285873] [2024-11-09 01:12:23,088 INFO L159 IcfgInterpreter]: Started Sifa with 29 locations of interest [2024-11-09 01:12:23,088 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 01:12:23,088 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 01:12:23,089 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 01:12:23,089 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 01:12:27,334 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 106 for LOIs [2024-11-09 01:12:27,380 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 7 for LOIs [2024-11-09 01:12:27,382 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 01:12:36,436 WARN L286 SmtUtils]: Spent 5.78s on a formula simplification. DAG size of input: 103 DAG size of output: 89 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-09 01:12:38,034 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [1943285873] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 01:12:38,035 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2024-11-09 01:12:38,035 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [25, 8, 8] total 64 [2024-11-09 01:12:38,035 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [932870840] [2024-11-09 01:12:38,035 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 01:12:38,035 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2024-11-09 01:12:38,035 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 01:12:38,036 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2024-11-09 01:12:38,037 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=658, Invalid=3374, Unknown=0, NotChecked=0, Total=4032 [2024-11-09 01:12:38,037 INFO L87 Difference]: Start difference. First operand 905 states and 1020 transitions. Second operand has 27 states, 17 states have (on average 1.411764705882353) internal successors, (24), 17 states have internal predecessors, (24), 7 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-11-09 01:12:41,858 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 [] [2024-11-09 01:12:43,994 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.45s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-09 01:12:44,956 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 01:12:44,956 INFO L93 Difference]: Finished difference Result 929 states and 1045 transitions. [2024-11-09 01:12:44,956 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2024-11-09 01:12:44,956 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 17 states have (on average 1.411764705882353) internal successors, (24), 17 states have internal predecessors, (24), 7 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) Word has length 105 [2024-11-09 01:12:44,957 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 01:12:44,958 INFO L225 Difference]: With dead ends: 929 [2024-11-09 01:12:44,958 INFO L226 Difference]: Without dead ends: 0 [2024-11-09 01:12:44,960 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 349 GetRequests, 276 SyntacticMatches, 0 SemanticMatches, 73 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1981 ImplicationChecksByTransitivity, 12.6s TimeCoverageRelationStatistics Valid=870, Invalid=4680, Unknown=0, NotChecked=0, Total=5550 [2024-11-09 01:12:44,961 INFO L432 NwaCegarLoop]: 7 mSDtfsCounter, 42 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 506 mSolverCounterSat, 8 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 7 SdHoareTripleChecker+Invalid, 515 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 506 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.4s IncrementalHoareTripleChecker+Time [2024-11-09 01:12:44,962 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [42 Valid, 7 Invalid, 515 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 506 Invalid, 1 Unknown, 0 Unchecked, 5.4s Time] [2024-11-09 01:12:44,962 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-09 01:12:44,962 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-09 01:12:44,963 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 01:12:44,963 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-09 01:12:44,964 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 105 [2024-11-09 01:12:44,964 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 01:12:44,964 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-09 01:12:44,964 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 17 states have (on average 1.411764705882353) internal successors, (24), 17 states have internal predecessors, (24), 7 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-11-09 01:12:44,965 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-09 01:12:44,965 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-09 01:12:44,968 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 6 remaining) [2024-11-09 01:12:44,968 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 6 remaining) [2024-11-09 01:12:44,969 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 6 remaining) [2024-11-09 01:12:44,969 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 6 remaining) [2024-11-09 01:12:44,969 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 6 remaining) [2024-11-09 01:12:44,969 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 6 remaining) [2024-11-09 01:12:44,993 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_170d178d-99b9-4fdb-be8c-98490093f5e6/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Ended with exit code 0 [2024-11-09 01:12:45,170 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_170d178d-99b9-4fdb-be8c-98490093f5e6/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable20 [2024-11-09 01:12:45,173 INFO L407 BasicCegarLoop]: Path program histogram: [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 01:12:45,176 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-09 01:13:02,260 WARN L286 SmtUtils]: Spent 16.20s on a formula simplification. DAG size of input: 472 DAG size of output: 238 (called from [L 212] de.uni_freiburg.informatik.ultimate.lib.proofs.floydhoare.HoareAnnotationComposer.or) [2024-11-09 01:13:22,187 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-09 01:13:22,201 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #StackHeapBarrier [2024-11-09 01:13:22,220 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #memory_int [2024-11-09 01:13:22,220 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_int,GLOBAL] [2024-11-09 01:13:22,220 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_int,GLOBAL],[IntegerLiteral[2]]] [2024-11-09 01:13:22,220 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #length [2024-11-09 01:13:22,221 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#length,GLOBAL] [2024-11-09 01:13:22,221 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #length [2024-11-09 01:13:22,221 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#length,GLOBAL] [2024-11-09 01:13:22,221 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #StackHeapBarrier [2024-11-09 01:13:22,221 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #memory_int [2024-11-09 01:13:22,221 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_int,GLOBAL] [2024-11-09 01:13:22,221 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_int,GLOBAL],[IntegerLiteral[2]]] [2024-11-09 01:13:22,222 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #length [2024-11-09 01:13:22,222 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#length,GLOBAL] [2024-11-09 01:13:22,222 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #valid [2024-11-09 01:13:22,222 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#valid,GLOBAL] [2024-11-09 01:13:22,222 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #memory_int [2024-11-09 01:13:22,223 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_int,GLOBAL] [2024-11-09 01:13:22,223 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_int,GLOBAL],[IntegerLiteral[2]]] [2024-11-09 01:13:22,223 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #memory_int [2024-11-09 01:13:22,224 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_int,GLOBAL] [2024-11-09 01:13:22,224 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_int,GLOBAL],[IntegerLiteral[2]]] [2024-11-09 01:13:22,224 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #valid [2024-11-09 01:13:22,224 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#valid,GLOBAL] [2024-11-09 01:13:22,224 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #memory_int [2024-11-09 01:13:22,225 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_int,GLOBAL] [2024-11-09 01:13:22,225 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_int,GLOBAL],[IntegerLiteral[2]]] [2024-11-09 01:13:22,225 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #memory_int [2024-11-09 01:13:22,225 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_int,GLOBAL] [2024-11-09 01:13:22,225 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_int,GLOBAL],[IntegerLiteral[2]]] [2024-11-09 01:13:22,226 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #valid [2024-11-09 01:13:22,226 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#valid,GLOBAL] [2024-11-09 01:13:22,226 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #valid [2024-11-09 01:13:22,226 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#valid,GLOBAL] [2024-11-09 01:13:22,226 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #memory_int [2024-11-09 01:13:22,227 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_int,GLOBAL] [2024-11-09 01:13:22,227 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_int,GLOBAL],[IntegerLiteral[1]]] [2024-11-09 01:13:22,227 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #memory_int [2024-11-09 01:13:22,227 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_int,GLOBAL] [2024-11-09 01:13:22,227 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_int,GLOBAL],[IntegerLiteral[2]]] [2024-11-09 01:13:22,227 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #memory_int [2024-11-09 01:13:22,228 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_int,GLOBAL] [2024-11-09 01:13:22,228 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_int,GLOBAL],[IntegerLiteral[1]]] [2024-11-09 01:13:22,228 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #memory_int [2024-11-09 01:13:22,228 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_int,GLOBAL] [2024-11-09 01:13:22,229 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_int,GLOBAL],[IntegerLiteral[2]]] [2024-11-09 01:13:22,229 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #length [2024-11-09 01:13:22,229 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#length,GLOBAL] [2024-11-09 01:13:22,229 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #length [2024-11-09 01:13:22,229 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#length,GLOBAL] [2024-11-09 01:13:22,230 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #StackHeapBarrier [2024-11-09 01:13:22,230 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #memory_int [2024-11-09 01:13:22,230 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_int,GLOBAL] [2024-11-09 01:13:22,230 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_int,GLOBAL],[IntegerLiteral[2]]] [2024-11-09 01:13:22,231 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #length [2024-11-09 01:13:22,231 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#length,GLOBAL] [2024-11-09 01:13:22,231 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #valid [2024-11-09 01:13:22,231 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#valid,GLOBAL] [2024-11-09 01:13:22,232 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #memory_int [2024-11-09 01:13:22,232 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_int,GLOBAL] [2024-11-09 01:13:22,232 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_int,GLOBAL],[IntegerLiteral[2]]] [2024-11-09 01:13:22,232 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #memory_int [2024-11-09 01:13:22,232 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_int,GLOBAL] [2024-11-09 01:13:22,233 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_int,GLOBAL],[IntegerLiteral[2]]] [2024-11-09 01:13:22,233 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #valid [2024-11-09 01:13:22,233 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#valid,GLOBAL] [2024-11-09 01:13:22,233 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #memory_int [2024-11-09 01:13:22,233 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_int,GLOBAL] [2024-11-09 01:13:22,234 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_int,GLOBAL],[IntegerLiteral[2]]] [2024-11-09 01:13:22,234 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #memory_int [2024-11-09 01:13:22,234 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_int,GLOBAL] [2024-11-09 01:13:22,234 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_int,GLOBAL],[IntegerLiteral[2]]] [2024-11-09 01:13:22,234 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #valid [2024-11-09 01:13:22,234 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#valid,GLOBAL] [2024-11-09 01:13:22,235 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #valid [2024-11-09 01:13:22,235 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#valid,GLOBAL] [2024-11-09 01:13:22,235 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #memory_int [2024-11-09 01:13:22,235 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_int,GLOBAL] [2024-11-09 01:13:22,235 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_int,GLOBAL],[IntegerLiteral[1]]] [2024-11-09 01:13:22,235 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #memory_int [2024-11-09 01:13:22,236 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_int,GLOBAL] [2024-11-09 01:13:22,236 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_int,GLOBAL],[IntegerLiteral[2]]] [2024-11-09 01:13:22,236 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #memory_int [2024-11-09 01:13:22,236 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_int,GLOBAL] [2024-11-09 01:13:22,236 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_int,GLOBAL],[IntegerLiteral[1]]] [2024-11-09 01:13:22,243 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #StackHeapBarrier [2024-11-09 01:13:22,248 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.11 01:13:22 BoogieIcfgContainer [2024-11-09 01:13:22,248 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-09 01:13:22,249 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-09 01:13:22,249 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-09 01:13:22,249 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-09 01:13:22,250 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 01:08:41" (3/4) ... [2024-11-09 01:13:22,254 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-09 01:13:22,258 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure assume_abort_if_not [2024-11-09 01:13:22,259 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2024-11-09 01:13:22,263 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 22 nodes and edges [2024-11-09 01:13:22,263 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2024-11-09 01:13:22,264 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2024-11-09 01:13:22,264 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-09 01:13:22,264 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-09 01:13:22,380 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_170d178d-99b9-4fdb-be8c-98490093f5e6/bin/utaipan-verify-YMUCfTKeje/witness.graphml [2024-11-09 01:13:22,380 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_170d178d-99b9-4fdb-be8c-98490093f5e6/bin/utaipan-verify-YMUCfTKeje/witness.yml [2024-11-09 01:13:22,380 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-09 01:13:22,381 INFO L158 Benchmark]: Toolchain (without parser) took 281528.34ms. Allocated memory was 172.0MB in the beginning and 679.5MB in the end (delta: 507.5MB). Free memory was 136.3MB in the beginning and 592.5MB in the end (delta: -456.2MB). Peak memory consumption was 53.0MB. Max. memory is 16.1GB. [2024-11-09 01:13:22,382 INFO L158 Benchmark]: CDTParser took 0.32ms. Allocated memory is still 113.2MB. Free memory was 80.7MB in the beginning and 80.7MB in the end (delta: 25.4kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 01:13:22,383 INFO L158 Benchmark]: CACSL2BoogieTranslator took 351.38ms. Allocated memory is still 172.0MB. Free memory was 136.3MB in the beginning and 123.7MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-11-09 01:13:22,383 INFO L158 Benchmark]: Boogie Procedure Inliner took 52.43ms. Allocated memory is still 172.0MB. Free memory was 123.7MB in the beginning and 122.2MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 01:13:22,383 INFO L158 Benchmark]: Boogie Preprocessor took 47.36ms. Allocated memory is still 172.0MB. Free memory was 122.2MB in the beginning and 120.5MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-09 01:13:22,386 INFO L158 Benchmark]: RCFGBuilder took 570.97ms. Allocated memory is still 172.0MB. Free memory was 120.5MB in the beginning and 105.8MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-11-09 01:13:22,387 INFO L158 Benchmark]: TraceAbstraction took 280367.59ms. Allocated memory was 172.0MB in the beginning and 679.5MB in the end (delta: 507.5MB). Free memory was 105.4MB in the beginning and 597.7MB in the end (delta: -492.3MB). Peak memory consumption was 390.7MB. Max. memory is 16.1GB. [2024-11-09 01:13:22,387 INFO L158 Benchmark]: Witness Printer took 131.60ms. Allocated memory is still 679.5MB. Free memory was 597.7MB in the beginning and 592.5MB in the end (delta: 5.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2024-11-09 01:13:22,389 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32ms. Allocated memory is still 113.2MB. Free memory was 80.7MB in the beginning and 80.7MB in the end (delta: 25.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 351.38ms. Allocated memory is still 172.0MB. Free memory was 136.3MB in the beginning and 123.7MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 52.43ms. Allocated memory is still 172.0MB. Free memory was 123.7MB in the beginning and 122.2MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 47.36ms. Allocated memory is still 172.0MB. Free memory was 122.2MB in the beginning and 120.5MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 570.97ms. Allocated memory is still 172.0MB. Free memory was 120.5MB in the beginning and 105.8MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 280367.59ms. Allocated memory was 172.0MB in the beginning and 679.5MB in the end (delta: 507.5MB). Free memory was 105.4MB in the beginning and 597.7MB in the end (delta: -492.3MB). Peak memory consumption was 390.7MB. Max. memory is 16.1GB. * Witness Printer took 131.60ms. Allocated memory is still 679.5MB. Free memory was 597.7MB in the beginning and 592.5MB in the end (delta: 5.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #StackHeapBarrier - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #memory_int - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_int,GLOBAL] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_int,GLOBAL],[IntegerLiteral[2]]] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #length - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#length,GLOBAL] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #length - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#length,GLOBAL] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #StackHeapBarrier - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #memory_int - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_int,GLOBAL] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_int,GLOBAL],[IntegerLiteral[2]]] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #length - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#length,GLOBAL] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #valid - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#valid,GLOBAL] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #memory_int - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_int,GLOBAL] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_int,GLOBAL],[IntegerLiteral[2]]] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #memory_int - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_int,GLOBAL] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_int,GLOBAL],[IntegerLiteral[2]]] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #valid - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#valid,GLOBAL] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #memory_int - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_int,GLOBAL] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_int,GLOBAL],[IntegerLiteral[2]]] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #memory_int - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_int,GLOBAL] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_int,GLOBAL],[IntegerLiteral[2]]] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #valid - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#valid,GLOBAL] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #valid - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#valid,GLOBAL] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #memory_int - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_int,GLOBAL] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_int,GLOBAL],[IntegerLiteral[1]]] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #memory_int - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_int,GLOBAL] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_int,GLOBAL],[IntegerLiteral[2]]] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #memory_int - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_int,GLOBAL] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_int,GLOBAL],[IntegerLiteral[1]]] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #memory_int - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_int,GLOBAL] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_int,GLOBAL],[IntegerLiteral[2]]] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #length - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#length,GLOBAL] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #length - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#length,GLOBAL] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #StackHeapBarrier - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #memory_int - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_int,GLOBAL] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_int,GLOBAL],[IntegerLiteral[2]]] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #length - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#length,GLOBAL] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #valid - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#valid,GLOBAL] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #memory_int - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_int,GLOBAL] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_int,GLOBAL],[IntegerLiteral[2]]] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #memory_int - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_int,GLOBAL] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_int,GLOBAL],[IntegerLiteral[2]]] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #valid - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#valid,GLOBAL] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #memory_int - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_int,GLOBAL] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_int,GLOBAL],[IntegerLiteral[2]]] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #memory_int - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_int,GLOBAL] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_int,GLOBAL],[IntegerLiteral[2]]] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #valid - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#valid,GLOBAL] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #valid - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#valid,GLOBAL] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #memory_int - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_int,GLOBAL] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_int,GLOBAL],[IntegerLiteral[1]]] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #memory_int - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_int,GLOBAL] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_int,GLOBAL],[IntegerLiteral[2]]] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #memory_int - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_int,GLOBAL] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_int,GLOBAL],[IntegerLiteral[1]]] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #StackHeapBarrier * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 39]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 39]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 44]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 44]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 52]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 52]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 38 locations, 6 error locations. Started 1 CEGAR loops. OverallTime: 243.2s, OverallIterations: 21, TraceHistogramMax: 10, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 84.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 5 mSolverCounterUnknown, 2343 SdHoareTripleChecker+Valid, 37.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2338 mSDsluCounter, 4078 SdHoareTripleChecker+Invalid, 36.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 3529 mSDsCounter, 362 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 6814 IncrementalHoareTripleChecker+Invalid, 7181 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 362 mSolverCounterUnsat, 549 mSDtfsCounter, 6814 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 3441 GetRequests, 2183 SyntacticMatches, 46 SemanticMatches, 1212 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38721 ImplicationChecksByTransitivity, 148.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=905occurred in iteration=20, InterpolantAutomatonStates: 670, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.3s AutomataMinimizationTime, 21 MinimizatonAttempts, 1225 StatesRemovedByMinimization, 19 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.7s SatisfiabilityAnalysisTime, 13.4s InterpolantComputationTime, 2100 NumberOfCodeBlocks, 1998 NumberOfCodeBlocksAsserted, 40 NumberOfCheckSat, 2967 ConstructedInterpolants, 0 QuantifiedInterpolants, 6885 SizeOfPredicates, 142 NumberOfNonLiveVariables, 2311 ConjunctsInSsa, 180 ConjunctsInUnsatCore, 50 InterpolantComputations, 7 PerfectInterpolantSequences, 2195/3838 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: OVERALL_TIME: 14.0s, ICFG_INTERPRETER_ENTERED_PROCEDURES: 12, DAG_INTERPRETER_EARLY_EXIT_QUERIES_NONTRIVIAL: 218, DAG_INTERPRETER_EARLY_EXITS: 4, TOOLS_POST_APPLICATIONS: 392, TOOLS_POST_TIME: 4.2s, TOOLS_POST_CALL_APPLICATIONS: 177, TOOLS_POST_CALL_TIME: 2.1s, TOOLS_POST_RETURN_APPLICATIONS: 150, TOOLS_POST_RETURN_TIME: 1.4s, TOOLS_QUANTIFIERELIM_APPLICATIONS: 711, TOOLS_QUANTIFIERELIM_TIME: 7.5s, TOOLS_QUANTIFIERELIM_MAX_TIME: 0.1s, FLUID_QUERY_TIME: 0.0s, FLUID_QUERIES: 838, FLUID_YES_ANSWERS: 0, DOMAIN_JOIN_APPLICATIONS: 221, DOMAIN_JOIN_TIME: 1.0s, DOMAIN_ALPHA_APPLICATIONS: 0, DOMAIN_ALPHA_TIME: 0.0s, DOMAIN_WIDEN_APPLICATIONS: 18, DOMAIN_WIDEN_TIME: 0.2s, DOMAIN_ISSUBSETEQ_APPLICATIONS: 37, DOMAIN_ISSUBSETEQ_TIME: 3.2s, DOMAIN_ISBOTTOM_APPLICATIONS: 218, DOMAIN_ISBOTTOM_TIME: 1.6s, LOOP_SUMMARIZER_APPLICATIONS: 19, LOOP_SUMMARIZER_CACHE_MISSES: 19, LOOP_SUMMARIZER_OVERALL_TIME: 9.5s, LOOP_SUMMARIZER_NEW_COMPUTATION_TIME: 9.5s, LOOP_SUMMARIZER_FIXPOINT_ITERATIONS: 37, CALL_SUMMARIZER_APPLICATIONS: 150, CALL_SUMMARIZER_CACHE_MISSES: 8, CALL_SUMMARIZER_OVERALL_TIME: 0.0s, CALL_SUMMARIZER_NEW_COMPUTATION_TIME: 0.0s, PROCEDURE_GRAPH_BUILDER_TIME: 0.0s, PATH_EXPR_TIME: 0.0s, REGEX_TO_DAG_TIME: 0.0s, DAG_COMPRESSION_TIME: 0.1s, DAG_COMPRESSION_PROCESSED_NODES: 7058, DAG_COMPRESSION_RETAINED_NODES: 546, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 6 specifications checked. All of them hold - InvariantResult [Line: 39]: Loop Invariant Derived loop invariant: ((counter <= 52) && (0 <= counter)) - ProcedureContractResult [Line: 11]: Procedure Contract for assume_abort_if_not Derived contract for procedure assume_abort_if_not. Requires: (counter == 0) Ensures: (((cond != 0) && (counter == 0)) && (counter == \old(counter))) - ProcedureContractResult [Line: 14]: Procedure Contract for __VERIFIER_assert Derived contract for procedure __VERIFIER_assert. Ensures: (counter == \old(counter)) RESULT: Ultimate proved your program to be correct! [2024-11-09 01:13:22,616 WARN L435 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_170d178d-99b9-4fdb-be8c-98490093f5e6/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forcibly destroying the process [2024-11-09 01:13:22,631 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_170d178d-99b9-4fdb-be8c-98490093f5e6/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE