./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/verifythis/elimination_max.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4e7fbc69 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_17665640-d999-4eab-837e-d087fd1a3c89/bin/utaipan-Q6hlc19bkW/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17665640-d999-4eab-837e-d087fd1a3c89/bin/utaipan-Q6hlc19bkW/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17665640-d999-4eab-837e-d087fd1a3c89/bin/utaipan-Q6hlc19bkW/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17665640-d999-4eab-837e-d087fd1a3c89/bin/utaipan-Q6hlc19bkW/config/TaipanReach.xml -i ../../sv-benchmarks/c/verifythis/elimination_max.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17665640-d999-4eab-837e-d087fd1a3c89/bin/utaipan-Q6hlc19bkW/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17665640-d999-4eab-837e-d087fd1a3c89/bin/utaipan-Q6hlc19bkW --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 0bc7b1b837bfd7794f122f6504da8d835bb2276ae4afe0cc0d058d385032d49e --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-4e7fbc6 [2022-11-23 14:22:47,245 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-23 14:22:47,248 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-23 14:22:47,289 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-23 14:22:47,290 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-23 14:22:47,294 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-23 14:22:47,296 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-23 14:22:47,299 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-23 14:22:47,302 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-23 14:22:47,307 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-23 14:22:47,309 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-23 14:22:47,311 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-23 14:22:47,312 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-23 14:22:47,315 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-23 14:22:47,316 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-23 14:22:47,318 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-23 14:22:47,321 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-23 14:22:47,322 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-23 14:22:47,323 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-23 14:22:47,330 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-23 14:22:47,331 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-23 14:22:47,334 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-23 14:22:47,335 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-23 14:22:47,336 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-23 14:22:47,346 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-23 14:22:47,347 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-23 14:22:47,347 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-23 14:22:47,349 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-23 14:22:47,350 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-23 14:22:47,351 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-23 14:22:47,351 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-23 14:22:47,352 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-23 14:22:47,355 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-23 14:22:47,357 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-23 14:22:47,358 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-23 14:22:47,359 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-23 14:22:47,360 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-23 14:22:47,360 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-23 14:22:47,360 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-23 14:22:47,362 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-23 14:22:47,363 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-23 14:22:47,364 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17665640-d999-4eab-837e-d087fd1a3c89/bin/utaipan-Q6hlc19bkW/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-11-23 14:22:47,407 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-23 14:22:47,407 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-23 14:22:47,408 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-23 14:22:47,408 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-23 14:22:47,409 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-23 14:22:47,410 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-23 14:22:47,410 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-23 14:22:47,410 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-23 14:22:47,411 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-23 14:22:47,411 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-23 14:22:47,412 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-23 14:22:47,412 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-23 14:22:47,413 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-23 14:22:47,413 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-23 14:22:47,413 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-23 14:22:47,414 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-23 14:22:47,414 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-23 14:22:47,414 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-23 14:22:47,415 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-23 14:22:47,416 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-23 14:22:47,416 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-23 14:22:47,416 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-23 14:22:47,416 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-23 14:22:47,417 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-23 14:22:47,417 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-23 14:22:47,417 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-23 14:22:47,418 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-23 14:22:47,419 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-23 14:22:47,419 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-23 14:22:47,419 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-23 14:22:47,420 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-23 14:22:47,420 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-23 14:22:47,421 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 14:22:47,421 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-23 14:22:47,421 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-23 14:22:47,422 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-23 14:22:47,422 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-23 14:22:47,422 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-23 14:22:47,422 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-23 14:22:47,423 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-23 14:22:47,423 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-23 14:22:47,423 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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_17665640-d999-4eab-837e-d087fd1a3c89/bin/utaipan-Q6hlc19bkW/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17665640-d999-4eab-837e-d087fd1a3c89/bin/utaipan-Q6hlc19bkW Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0bc7b1b837bfd7794f122f6504da8d835bb2276ae4afe0cc0d058d385032d49e [2022-11-23 14:22:47,770 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-23 14:22:47,809 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-23 14:22:47,812 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-23 14:22:47,813 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-23 14:22:47,814 INFO L275 PluginConnector]: CDTParser initialized [2022-11-23 14:22:47,815 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17665640-d999-4eab-837e-d087fd1a3c89/bin/utaipan-Q6hlc19bkW/../../sv-benchmarks/c/verifythis/elimination_max.c [2022-11-23 14:22:50,844 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-23 14:22:51,052 INFO L351 CDTParser]: Found 1 translation units. [2022-11-23 14:22:51,053 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17665640-d999-4eab-837e-d087fd1a3c89/sv-benchmarks/c/verifythis/elimination_max.c [2022-11-23 14:22:51,059 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17665640-d999-4eab-837e-d087fd1a3c89/bin/utaipan-Q6hlc19bkW/data/eeac8d397/be57e79992b34f3eb1394f99b982f044/FLAG33c98de86 [2022-11-23 14:22:51,073 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17665640-d999-4eab-837e-d087fd1a3c89/bin/utaipan-Q6hlc19bkW/data/eeac8d397/be57e79992b34f3eb1394f99b982f044 [2022-11-23 14:22:51,075 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-23 14:22:51,077 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-23 14:22:51,078 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-23 14:22:51,078 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-23 14:22:51,082 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-23 14:22:51,083 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:22:51" (1/1) ... [2022-11-23 14:22:51,084 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4308253c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:22:51, skipping insertion in model container [2022-11-23 14:22:51,084 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:22:51" (1/1) ... [2022-11-23 14:22:51,092 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-23 14:22:51,106 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-23 14:22:51,278 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17665640-d999-4eab-837e-d087fd1a3c89/sv-benchmarks/c/verifythis/elimination_max.c[485,498] [2022-11-23 14:22:51,308 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 14:22:51,323 INFO L203 MainTranslator]: Completed pre-run [2022-11-23 14:22:51,339 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17665640-d999-4eab-837e-d087fd1a3c89/sv-benchmarks/c/verifythis/elimination_max.c[485,498] [2022-11-23 14:22:51,345 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 14:22:51,360 INFO L208 MainTranslator]: Completed translation [2022-11-23 14:22:51,361 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:22:51 WrapperNode [2022-11-23 14:22:51,361 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-23 14:22:51,362 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-23 14:22:51,363 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-23 14:22:51,363 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-23 14:22:51,371 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:22:51" (1/1) ... [2022-11-23 14:22:51,390 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:22:51" (1/1) ... [2022-11-23 14:22:51,418 INFO L138 Inliner]: procedures = 18, calls = 20, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 63 [2022-11-23 14:22:51,418 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-23 14:22:51,419 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-23 14:22:51,419 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-23 14:22:51,419 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-23 14:22:51,430 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:22:51" (1/1) ... [2022-11-23 14:22:51,431 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:22:51" (1/1) ... [2022-11-23 14:22:51,436 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:22:51" (1/1) ... [2022-11-23 14:22:51,437 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:22:51" (1/1) ... [2022-11-23 14:22:51,453 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:22:51" (1/1) ... [2022-11-23 14:22:51,457 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:22:51" (1/1) ... [2022-11-23 14:22:51,458 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:22:51" (1/1) ... [2022-11-23 14:22:51,459 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:22:51" (1/1) ... [2022-11-23 14:22:51,461 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-23 14:22:51,462 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-23 14:22:51,462 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-23 14:22:51,462 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-23 14:22:51,465 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:22:51" (1/1) ... [2022-11-23 14:22:51,471 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 14:22:51,483 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17665640-d999-4eab-837e-d087fd1a3c89/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 14:22:51,498 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17665640-d999-4eab-837e-d087fd1a3c89/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-23 14:22:51,527 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17665640-d999-4eab-837e-d087fd1a3c89/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-23 14:22:51,547 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-23 14:22:51,548 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-11-23 14:22:51,548 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-11-23 14:22:51,548 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-23 14:22:51,548 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-23 14:22:51,548 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-23 14:22:51,549 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-23 14:22:51,549 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-23 14:22:51,549 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-11-23 14:22:51,549 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-11-23 14:22:51,549 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-23 14:22:51,662 INFO L235 CfgBuilder]: Building ICFG [2022-11-23 14:22:51,664 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-23 14:22:51,873 INFO L276 CfgBuilder]: Performing block encoding [2022-11-23 14:22:51,918 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-23 14:22:51,918 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-11-23 14:22:51,921 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:22:51 BoogieIcfgContainer [2022-11-23 14:22:51,921 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-23 14:22:51,924 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-23 14:22:51,924 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-23 14:22:51,928 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-23 14:22:51,928 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 02:22:51" (1/3) ... [2022-11-23 14:22:51,929 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@399f94e0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:22:51, skipping insertion in model container [2022-11-23 14:22:51,929 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:22:51" (2/3) ... [2022-11-23 14:22:51,929 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@399f94e0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:22:51, skipping insertion in model container [2022-11-23 14:22:51,929 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:22:51" (3/3) ... [2022-11-23 14:22:51,931 INFO L112 eAbstractionObserver]: Analyzing ICFG elimination_max.c [2022-11-23 14:22:51,951 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-23 14:22:51,951 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-23 14:22:52,010 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-23 14:22:52,017 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, 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;@5469256a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-23 14:22:52,017 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-23 14:22:52,022 INFO L276 IsEmpty]: Start isEmpty. Operand has 20 states, 12 states have (on average 1.3333333333333333) internal successors, (16), 13 states have internal predecessors, (16), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-11-23 14:22:52,029 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-11-23 14:22:52,030 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:22:52,031 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:22:52,031 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 14:22:52,037 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:22:52,037 INFO L85 PathProgramCache]: Analyzing trace with hash 953681700, now seen corresponding path program 1 times [2022-11-23 14:22:52,048 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:22:52,049 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2087356135] [2022-11-23 14:22:52,049 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:22:52,050 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:22:52,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:22:52,773 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-23 14:22:52,773 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:22:52,774 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2087356135] [2022-11-23 14:22:52,774 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2087356135] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:22:52,775 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:22:52,775 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-23 14:22:52,776 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1973651940] [2022-11-23 14:22:52,777 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:22:52,782 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-23 14:22:52,782 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:22:52,814 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-23 14:22:52,815 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-11-23 14:22:52,818 INFO L87 Difference]: Start difference. First operand has 20 states, 12 states have (on average 1.3333333333333333) internal successors, (16), 13 states have internal predecessors, (16), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Second operand has 7 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 6 states have internal predecessors, (8), 3 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-23 14:22:52,987 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:22:52,987 INFO L93 Difference]: Finished difference Result 35 states and 42 transitions. [2022-11-23 14:22:52,988 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-23 14:22:52,990 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 6 states have internal predecessors, (8), 3 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 14 [2022-11-23 14:22:52,995 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:22:53,001 INFO L225 Difference]: With dead ends: 35 [2022-11-23 14:22:53,001 INFO L226 Difference]: Without dead ends: 23 [2022-11-23 14:22:53,004 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2022-11-23 14:22:53,007 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 13 mSDsluCounter, 37 mSDsCounter, 0 mSdLazyCounter, 63 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 48 SdHoareTripleChecker+Invalid, 67 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 63 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-23 14:22:53,010 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 48 Invalid, 67 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 63 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-23 14:22:53,030 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2022-11-23 14:22:53,051 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2022-11-23 14:22:53,052 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23 states, 15 states have (on average 1.1333333333333333) internal successors, (17), 15 states have internal predecessors, (17), 4 states have call successors, (4), 3 states have call predecessors, (4), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-11-23 14:22:53,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 25 transitions. [2022-11-23 14:22:53,055 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 25 transitions. Word has length 14 [2022-11-23 14:22:53,057 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:22:53,058 INFO L495 AbstractCegarLoop]: Abstraction has 23 states and 25 transitions. [2022-11-23 14:22:53,058 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 6 states have internal predecessors, (8), 3 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-23 14:22:53,060 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 25 transitions. [2022-11-23 14:22:53,063 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-11-23 14:22:53,064 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:22:53,064 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:22:53,064 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-23 14:22:53,065 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 14:22:53,067 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:22:53,068 INFO L85 PathProgramCache]: Analyzing trace with hash -722687172, now seen corresponding path program 1 times [2022-11-23 14:22:53,068 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:22:53,069 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2005828513] [2022-11-23 14:22:53,069 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:22:53,070 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:22:53,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:22:53,351 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-23 14:22:53,351 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:22:53,352 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2005828513] [2022-11-23 14:22:53,352 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2005828513] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:22:53,352 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:22:53,352 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-23 14:22:53,353 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1784970608] [2022-11-23 14:22:53,353 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:22:53,354 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-23 14:22:53,355 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:22:53,355 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-23 14:22:53,355 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-11-23 14:22:53,356 INFO L87 Difference]: Start difference. First operand 23 states and 25 transitions. Second operand has 7 states, 6 states have (on average 2.1666666666666665) internal successors, (13), 6 states have internal predecessors, (13), 3 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-11-23 14:22:53,469 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:22:53,469 INFO L93 Difference]: Finished difference Result 23 states and 25 transitions. [2022-11-23 14:22:53,470 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-23 14:22:53,470 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 2.1666666666666665) internal successors, (13), 6 states have internal predecessors, (13), 3 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 21 [2022-11-23 14:22:53,470 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:22:53,471 INFO L225 Difference]: With dead ends: 23 [2022-11-23 14:22:53,471 INFO L226 Difference]: Without dead ends: 0 [2022-11-23 14:22:53,471 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2022-11-23 14:22:53,473 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 10 mSDsluCounter, 38 mSDsCounter, 0 mSdLazyCounter, 57 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 50 SdHoareTripleChecker+Invalid, 63 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 57 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-23 14:22:53,473 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 50 Invalid, 63 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 57 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-23 14:22:53,474 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-23 14:22:53,474 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-23 14:22:53,475 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) [2022-11-23 14:22:53,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-23 14:22:53,475 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 21 [2022-11-23 14:22:53,475 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:22:53,475 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-23 14:22:53,476 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 2.1666666666666665) internal successors, (13), 6 states have internal predecessors, (13), 3 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-11-23 14:22:53,476 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-23 14:22:53,476 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-23 14:22:53,479 INFO L805 garLoopResultBuilder]: Registering result SAFE for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-23 14:22:53,479 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-23 14:22:53,481 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-11-23 14:22:53,508 INFO L895 garLoopResultBuilder]: At program point L35-2(lines 25 37) the Hoare annotation is: (= ((as const (Array Int Int)) 0) (select |#memory_int| |ULTIMATE.start_main_~a~0#1.base|)) [2022-11-23 14:22:53,509 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-11-23 14:22:53,509 INFO L902 garLoopResultBuilder]: At program point L19(line 19) the Hoare annotation is: true [2022-11-23 14:22:53,509 INFO L899 garLoopResultBuilder]: For program point L19-1(line 19) no Hoare annotation was computed. [2022-11-23 14:22:53,509 INFO L895 garLoopResultBuilder]: At program point L46(line 46) the Hoare annotation is: (and (= ((as const (Array Int Int)) 0) (select |#memory_int| |ULTIMATE.start_main_~a~0#1.base|)) (= |ULTIMATE.start_main_#t~mem16#1| 0) (= |ULTIMATE.start_main_#t~mem15#1| 0)) [2022-11-23 14:22:53,510 INFO L899 garLoopResultBuilder]: For program point L46-1(line 46) no Hoare annotation was computed. [2022-11-23 14:22:53,510 INFO L895 garLoopResultBuilder]: At program point L42(line 42) the Hoare annotation is: (= ((as const (Array Int Int)) 0) (select |#memory_int| |ULTIMATE.start_main_~a~0#1.base|)) [2022-11-23 14:22:53,510 INFO L899 garLoopResultBuilder]: For program point L42-1(line 42) no Hoare annotation was computed. [2022-11-23 14:22:53,510 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-11-23 14:22:53,510 INFO L895 garLoopResultBuilder]: At program point L43(line 43) the Hoare annotation is: (and (= ((as const (Array Int Int)) 0) (select |#memory_int| |ULTIMATE.start_main_~a~0#1.base|)) (<= |ULTIMATE.start_main_#t~mem12#1| |ULTIMATE.start_main_#t~mem13#1|)) [2022-11-23 14:22:53,511 INFO L899 garLoopResultBuilder]: For program point L43-1(line 43) no Hoare annotation was computed. [2022-11-23 14:22:53,511 INFO L895 garLoopResultBuilder]: At program point L45-3(lines 45 47) the Hoare annotation is: (= ((as const (Array Int Int)) 0) (select |#memory_int| |ULTIMATE.start_main_~a~0#1.base|)) [2022-11-23 14:22:53,511 INFO L902 garLoopResultBuilder]: At program point assume_abort_if_notENTRY(lines 7 9) the Hoare annotation is: true [2022-11-23 14:22:53,511 INFO L899 garLoopResultBuilder]: For program point assume_abort_if_notEXIT(lines 7 9) no Hoare annotation was computed. [2022-11-23 14:22:53,511 INFO L902 garLoopResultBuilder]: At program point __VERIFIER_assertENTRY(lines 10 12) the Hoare annotation is: true [2022-11-23 14:22:53,512 INFO L899 garLoopResultBuilder]: For program point L11(line 11) no Hoare annotation was computed. [2022-11-23 14:22:53,512 INFO L899 garLoopResultBuilder]: For program point L11-1(line 11) no Hoare annotation was computed. [2022-11-23 14:22:53,512 INFO L899 garLoopResultBuilder]: For program point __VERIFIER_assertEXIT(lines 10 12) no Hoare annotation was computed. [2022-11-23 14:22:53,512 INFO L899 garLoopResultBuilder]: For program point L11-3(lines 10 12) no Hoare annotation was computed. [2022-11-23 14:22:53,512 INFO L899 garLoopResultBuilder]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 11) no Hoare annotation was computed. [2022-11-23 14:22:53,516 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1] [2022-11-23 14:22:53,518 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-23 14:22:53,525 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.IllegalArgumentException: unknown symbol (const Int (Array Int Int)) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:265) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:137) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:173) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:137) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.RCFGBacktranslator.translateExpression(RCFGBacktranslator.java:401) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.RCFGBacktranslator.translateExpression(RCFGBacktranslator.java:1) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ModelTranslationContainer.translateExpression(ModelTranslationContainer.java:106) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ModelTranslationContainer.translateExpressionToString(ModelTranslationContainer.java:89) at de.uni_freiburg.informatik.ultimate.core.lib.results.InvariantResult.getLongDescription(InvariantResult.java:65) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ResultService.reportResult(ResultService.java:86) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopResultReporter.reportResult(CegarLoopResultReporter.java:140) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.createInvariantResults(TraceAbstractionStarter.java:455) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:191) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:154) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2022-11-23 14:22:53,527 INFO L158 Benchmark]: Toolchain (without parser) took 2450.71ms. Allocated memory is still 155.2MB. Free memory was 117.2MB in the beginning and 66.0MB in the end (delta: 51.2MB). Peak memory consumption was 51.8MB. Max. memory is 16.1GB. [2022-11-23 14:22:53,528 INFO L158 Benchmark]: CDTParser took 0.22ms. Allocated memory is still 111.1MB. Free memory is still 86.8MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-23 14:22:53,528 INFO L158 Benchmark]: CACSL2BoogieTranslator took 283.39ms. Allocated memory is still 155.2MB. Free memory was 117.2MB in the beginning and 106.8MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-23 14:22:53,529 INFO L158 Benchmark]: Boogie Procedure Inliner took 56.19ms. Allocated memory is still 155.2MB. Free memory was 106.8MB in the beginning and 105.2MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-23 14:22:53,529 INFO L158 Benchmark]: Boogie Preprocessor took 42.19ms. Allocated memory is still 155.2MB. Free memory was 105.2MB in the beginning and 103.3MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-23 14:22:53,529 INFO L158 Benchmark]: RCFGBuilder took 459.45ms. Allocated memory is still 155.2MB. Free memory was 103.3MB in the beginning and 88.9MB in the end (delta: 14.4MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-11-23 14:22:53,530 INFO L158 Benchmark]: TraceAbstraction took 1602.90ms. Allocated memory is still 155.2MB. Free memory was 88.4MB in the beginning and 66.0MB in the end (delta: 22.4MB). Peak memory consumption was 24.5MB. Max. memory is 16.1GB. [2022-11-23 14:22:53,532 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22ms. Allocated memory is still 111.1MB. Free memory is still 86.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 283.39ms. Allocated memory is still 155.2MB. Free memory was 117.2MB in the beginning and 106.8MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 56.19ms. Allocated memory is still 155.2MB. Free memory was 106.8MB in the beginning and 105.2MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 42.19ms. Allocated memory is still 155.2MB. Free memory was 105.2MB in the beginning and 103.3MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 459.45ms. Allocated memory is still 155.2MB. Free memory was 103.3MB in the beginning and 88.9MB in the end (delta: 14.4MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 1602.90ms. Allocated memory is still 155.2MB. Free memory was 88.4MB in the beginning and 66.0MB in the end (delta: 22.4MB). Peak memory consumption was 24.5MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 11]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 20 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.5s, OverallIterations: 2, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 25 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 23 mSDsluCounter, 98 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 75 mSDsCounter, 10 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 120 IncrementalHoareTripleChecker+Invalid, 130 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 10 mSolverCounterUnsat, 23 mSDtfsCounter, 120 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 18 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=23occurred in iteration=1, InterpolantAutomatonStates: 14, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 8 LocationsWithAnnotation, 11 PreInvPairs, 13 NumberOfFragments, 44 HoareAnnotationTreeSize, 11 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 8 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 35 NumberOfCodeBlocks, 35 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 33 ConstructedInterpolants, 0 QuantifiedInterpolants, 149 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 6/6 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - ExceptionOrErrorResult: IllegalArgumentException: unknown symbol (const Int (Array Int Int)) de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: IllegalArgumentException: unknown symbol (const Int (Array Int Int)): de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:265) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2022-11-23 14:22:53,554 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17665640-d999-4eab-837e-d087fd1a3c89/bin/utaipan-Q6hlc19bkW/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 Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### 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_17665640-d999-4eab-837e-d087fd1a3c89/bin/utaipan-Q6hlc19bkW/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17665640-d999-4eab-837e-d087fd1a3c89/bin/utaipan-Q6hlc19bkW/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17665640-d999-4eab-837e-d087fd1a3c89/bin/utaipan-Q6hlc19bkW/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17665640-d999-4eab-837e-d087fd1a3c89/bin/utaipan-Q6hlc19bkW/config/TaipanReach.xml -i ../../sv-benchmarks/c/verifythis/elimination_max.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17665640-d999-4eab-837e-d087fd1a3c89/bin/utaipan-Q6hlc19bkW/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17665640-d999-4eab-837e-d087fd1a3c89/bin/utaipan-Q6hlc19bkW --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 0bc7b1b837bfd7794f122f6504da8d835bb2276ae4afe0cc0d058d385032d49e --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-4e7fbc6 [2022-11-23 14:22:56,049 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-23 14:22:56,051 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-23 14:22:56,085 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-23 14:22:56,087 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-23 14:22:56,090 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-23 14:22:56,095 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-23 14:22:56,098 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-23 14:22:56,100 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-23 14:22:56,106 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-23 14:22:56,107 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-23 14:22:56,109 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-23 14:22:56,110 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-23 14:22:56,112 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-23 14:22:56,115 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-23 14:22:56,120 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-23 14:22:56,122 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-23 14:22:56,122 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-23 14:22:56,125 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-23 14:22:56,131 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-23 14:22:56,133 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-23 14:22:56,136 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-23 14:22:56,137 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-23 14:22:56,138 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-23 14:22:56,146 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-23 14:22:56,146 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-23 14:22:56,147 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-23 14:22:56,149 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-23 14:22:56,149 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-23 14:22:56,150 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-23 14:22:56,151 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-23 14:22:56,152 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-23 14:22:56,154 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-23 14:22:56,155 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-23 14:22:56,156 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-23 14:22:56,156 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-23 14:22:56,157 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-23 14:22:56,157 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-23 14:22:56,157 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-23 14:22:56,158 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-23 14:22:56,159 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-23 14:22:56,164 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17665640-d999-4eab-837e-d087fd1a3c89/bin/utaipan-Q6hlc19bkW/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2022-11-23 14:22:56,203 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-23 14:22:56,203 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-23 14:22:56,205 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-23 14:22:56,205 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-23 14:22:56,206 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-23 14:22:56,207 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-23 14:22:56,207 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-23 14:22:56,207 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-23 14:22:56,207 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-23 14:22:56,208 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-23 14:22:56,209 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-23 14:22:56,209 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-23 14:22:56,210 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-23 14:22:56,210 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-23 14:22:56,210 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-23 14:22:56,211 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-23 14:22:56,211 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-23 14:22:56,211 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-23 14:22:56,211 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-23 14:22:56,212 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-23 14:22:56,212 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-23 14:22:56,212 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-23 14:22:56,212 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-23 14:22:56,212 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-23 14:22:56,213 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-23 14:22:56,213 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-23 14:22:56,213 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-23 14:22:56,213 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-23 14:22:56,214 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-23 14:22:56,214 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 14:22:56,214 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-23 14:22:56,214 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-23 14:22:56,215 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-23 14:22:56,215 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2022-11-23 14:22:56,215 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-23 14:22:56,215 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-23 14:22:56,216 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-23 14:22:56,216 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-23 14:22:56,216 INFO L138 SettingsManager]: * Logic for external solver=AUFBV 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_17665640-d999-4eab-837e-d087fd1a3c89/bin/utaipan-Q6hlc19bkW/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17665640-d999-4eab-837e-d087fd1a3c89/bin/utaipan-Q6hlc19bkW Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0bc7b1b837bfd7794f122f6504da8d835bb2276ae4afe0cc0d058d385032d49e [2022-11-23 14:22:56,607 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-23 14:22:56,629 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-23 14:22:56,631 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-23 14:22:56,633 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-23 14:22:56,633 INFO L275 PluginConnector]: CDTParser initialized [2022-11-23 14:22:56,635 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17665640-d999-4eab-837e-d087fd1a3c89/bin/utaipan-Q6hlc19bkW/../../sv-benchmarks/c/verifythis/elimination_max.c [2022-11-23 14:22:59,650 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-23 14:22:59,862 INFO L351 CDTParser]: Found 1 translation units. [2022-11-23 14:22:59,862 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17665640-d999-4eab-837e-d087fd1a3c89/sv-benchmarks/c/verifythis/elimination_max.c [2022-11-23 14:22:59,868 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17665640-d999-4eab-837e-d087fd1a3c89/bin/utaipan-Q6hlc19bkW/data/9eb2db0ac/c68fec9484f94a16afd8651370b43e8a/FLAG968b7ca3a [2022-11-23 14:22:59,882 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17665640-d999-4eab-837e-d087fd1a3c89/bin/utaipan-Q6hlc19bkW/data/9eb2db0ac/c68fec9484f94a16afd8651370b43e8a [2022-11-23 14:22:59,885 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-23 14:22:59,886 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-23 14:22:59,888 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-23 14:22:59,888 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-23 14:22:59,892 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-23 14:22:59,892 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:22:59" (1/1) ... [2022-11-23 14:22:59,894 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5987a130 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:22:59, skipping insertion in model container [2022-11-23 14:22:59,894 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:22:59" (1/1) ... [2022-11-23 14:22:59,901 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-23 14:22:59,916 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-23 14:23:00,086 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17665640-d999-4eab-837e-d087fd1a3c89/sv-benchmarks/c/verifythis/elimination_max.c[485,498] [2022-11-23 14:23:00,106 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 14:23:00,123 INFO L203 MainTranslator]: Completed pre-run [2022-11-23 14:23:00,137 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17665640-d999-4eab-837e-d087fd1a3c89/sv-benchmarks/c/verifythis/elimination_max.c[485,498] [2022-11-23 14:23:00,144 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 14:23:00,159 INFO L208 MainTranslator]: Completed translation [2022-11-23 14:23:00,160 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:23:00 WrapperNode [2022-11-23 14:23:00,160 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-23 14:23:00,161 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-23 14:23:00,162 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-23 14:23:00,162 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-23 14:23:00,170 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:23:00" (1/1) ... [2022-11-23 14:23:00,184 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:23:00" (1/1) ... [2022-11-23 14:23:00,203 INFO L138 Inliner]: procedures = 20, calls = 20, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 61 [2022-11-23 14:23:00,204 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-23 14:23:00,204 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-23 14:23:00,205 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-23 14:23:00,205 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-23 14:23:00,215 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:23:00" (1/1) ... [2022-11-23 14:23:00,215 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:23:00" (1/1) ... [2022-11-23 14:23:00,218 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:23:00" (1/1) ... [2022-11-23 14:23:00,218 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:23:00" (1/1) ... [2022-11-23 14:23:00,225 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:23:00" (1/1) ... [2022-11-23 14:23:00,229 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:23:00" (1/1) ... [2022-11-23 14:23:00,230 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:23:00" (1/1) ... [2022-11-23 14:23:00,232 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:23:00" (1/1) ... [2022-11-23 14:23:00,234 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-23 14:23:00,235 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-23 14:23:00,235 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-23 14:23:00,235 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-23 14:23:00,236 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:23:00" (1/1) ... [2022-11-23 14:23:00,243 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 14:23:00,255 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17665640-d999-4eab-837e-d087fd1a3c89/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 14:23:00,269 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17665640-d999-4eab-837e-d087fd1a3c89/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-23 14:23:00,283 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17665640-d999-4eab-837e-d087fd1a3c89/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-23 14:23:00,319 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-23 14:23:00,319 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-11-23 14:23:00,319 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-11-23 14:23:00,319 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-11-23 14:23:00,320 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-23 14:23:00,320 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-11-23 14:23:00,320 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-23 14:23:00,320 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-23 14:23:00,320 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-11-23 14:23:00,320 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-11-23 14:23:00,320 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-23 14:23:00,441 INFO L235 CfgBuilder]: Building ICFG [2022-11-23 14:23:00,445 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-23 14:23:00,696 INFO L276 CfgBuilder]: Performing block encoding [2022-11-23 14:23:00,702 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-23 14:23:00,703 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-11-23 14:23:00,705 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:23:00 BoogieIcfgContainer [2022-11-23 14:23:00,705 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-23 14:23:00,707 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-23 14:23:00,707 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-23 14:23:00,710 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-23 14:23:00,711 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 02:22:59" (1/3) ... [2022-11-23 14:23:00,728 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ee4e966 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:23:00, skipping insertion in model container [2022-11-23 14:23:00,728 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:23:00" (2/3) ... [2022-11-23 14:23:00,728 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ee4e966 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:23:00, skipping insertion in model container [2022-11-23 14:23:00,729 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:23:00" (3/3) ... [2022-11-23 14:23:00,730 INFO L112 eAbstractionObserver]: Analyzing ICFG elimination_max.c [2022-11-23 14:23:00,763 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-23 14:23:00,768 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-23 14:23:00,839 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-23 14:23:00,847 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, 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;@3e6f2ac2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-23 14:23:00,848 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-23 14:23:00,852 INFO L276 IsEmpty]: Start isEmpty. Operand has 30 states, 22 states have (on average 1.3636363636363635) internal successors, (30), 23 states have internal predecessors, (30), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-11-23 14:23:00,863 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-11-23 14:23:00,863 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:23:00,864 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:23:00,865 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 14:23:00,874 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:23:00,874 INFO L85 PathProgramCache]: Analyzing trace with hash 434333419, now seen corresponding path program 1 times [2022-11-23 14:23:00,889 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-23 14:23:00,890 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [89652850] [2022-11-23 14:23:00,891 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:23:00,891 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 14:23:00,892 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17665640-d999-4eab-837e-d087fd1a3c89/bin/utaipan-Q6hlc19bkW/mathsat [2022-11-23 14:23:00,903 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17665640-d999-4eab-837e-d087fd1a3c89/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-23 14:23:00,946 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17665640-d999-4eab-837e-d087fd1a3c89/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-11-23 14:23:01,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:23:01,051 INFO L263 TraceCheckSpWp]: Trace formula consists of 58 conjuncts, 1 conjunts are in the unsatisfiable core [2022-11-23 14:23:01,056 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 14:23:01,096 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-23 14:23:01,097 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 14:23:01,098 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-23 14:23:01,099 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [89652850] [2022-11-23 14:23:01,100 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [89652850] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:23:01,100 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:23:01,100 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-23 14:23:01,103 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [915094580] [2022-11-23 14:23:01,104 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:23:01,109 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-23 14:23:01,109 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-23 14:23:01,151 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-23 14:23:01,152 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-23 14:23:01,154 INFO L87 Difference]: Start difference. First operand has 30 states, 22 states have (on average 1.3636363636363635) internal successors, (30), 23 states have internal predecessors, (30), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Second operand has 2 states, 2 states have (on average 7.5) internal successors, (15), 2 states have internal predecessors, (15), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-23 14:23:01,181 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:23:01,181 INFO L93 Difference]: Finished difference Result 57 states and 76 transitions. [2022-11-23 14:23:01,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-23 14:23:01,184 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 7.5) internal successors, (15), 2 states have internal predecessors, (15), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 21 [2022-11-23 14:23:01,184 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:23:01,194 INFO L225 Difference]: With dead ends: 57 [2022-11-23 14:23:01,195 INFO L226 Difference]: Without dead ends: 26 [2022-11-23 14:23:01,198 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-23 14:23:01,203 INFO L413 NwaCegarLoop]: 34 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 34 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-23 14:23:01,204 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-23 14:23:01,221 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2022-11-23 14:23:01,240 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 26. [2022-11-23 14:23:01,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26 states, 19 states have (on average 1.1578947368421053) internal successors, (22), 19 states have internal predecessors, (22), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-11-23 14:23:01,245 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 30 transitions. [2022-11-23 14:23:01,246 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 30 transitions. Word has length 21 [2022-11-23 14:23:01,247 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:23:01,247 INFO L495 AbstractCegarLoop]: Abstraction has 26 states and 30 transitions. [2022-11-23 14:23:01,249 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 7.5) internal successors, (15), 2 states have internal predecessors, (15), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-23 14:23:01,250 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 30 transitions. [2022-11-23 14:23:01,252 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-11-23 14:23:01,252 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:23:01,252 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:23:01,281 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17665640-d999-4eab-837e-d087fd1a3c89/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-11-23 14:23:01,473 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17665640-d999-4eab-837e-d087fd1a3c89/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 14:23:01,473 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 14:23:01,474 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:23:01,474 INFO L85 PathProgramCache]: Analyzing trace with hash 1040778997, now seen corresponding path program 1 times [2022-11-23 14:23:01,474 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-23 14:23:01,475 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [12772191] [2022-11-23 14:23:01,475 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:23:01,475 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 14:23:01,475 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17665640-d999-4eab-837e-d087fd1a3c89/bin/utaipan-Q6hlc19bkW/mathsat [2022-11-23 14:23:01,478 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17665640-d999-4eab-837e-d087fd1a3c89/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-23 14:23:01,480 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17665640-d999-4eab-837e-d087fd1a3c89/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-11-23 14:23:01,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:23:01,607 INFO L263 TraceCheckSpWp]: Trace formula consists of 58 conjuncts, 16 conjunts are in the unsatisfiable core [2022-11-23 14:23:01,612 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 14:23:02,043 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 14:23:02,050 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-23 14:23:02,051 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 17 treesize of output 10 [2022-11-23 14:23:02,161 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-23 14:23:02,161 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 14:23:02,161 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-23 14:23:02,162 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [12772191] [2022-11-23 14:23:02,162 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [12772191] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:23:02,162 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:23:02,162 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-23 14:23:02,163 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1800505517] [2022-11-23 14:23:02,163 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:23:02,164 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-23 14:23:02,164 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-23 14:23:02,165 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-23 14:23:02,165 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-11-23 14:23:02,166 INFO L87 Difference]: Start difference. First operand 26 states and 30 transitions. Second operand has 12 states, 11 states have (on average 1.1818181818181819) internal successors, (13), 9 states have internal predecessors, (13), 3 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-23 14:23:03,095 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:23:03,095 INFO L93 Difference]: Finished difference Result 47 states and 56 transitions. [2022-11-23 14:23:03,096 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-23 14:23:03,097 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 1.1818181818181819) internal successors, (13), 9 states have internal predecessors, (13), 3 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 21 [2022-11-23 14:23:03,097 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:23:03,098 INFO L225 Difference]: With dead ends: 47 [2022-11-23 14:23:03,098 INFO L226 Difference]: Without dead ends: 45 [2022-11-23 14:23:03,099 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=64, Invalid=242, Unknown=0, NotChecked=0, Total=306 [2022-11-23 14:23:03,100 INFO L413 NwaCegarLoop]: 18 mSDtfsCounter, 64 mSDsluCounter, 112 mSDsCounter, 0 mSdLazyCounter, 175 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 67 SdHoareTripleChecker+Valid, 130 SdHoareTripleChecker+Invalid, 194 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 175 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-23 14:23:03,101 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [67 Valid, 130 Invalid, 194 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 175 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-23 14:23:03,101 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2022-11-23 14:23:03,115 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 35. [2022-11-23 14:23:03,118 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35 states, 25 states have (on average 1.16) internal successors, (29), 26 states have internal predecessors, (29), 6 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (6), 5 states have call predecessors, (6), 6 states have call successors, (6) [2022-11-23 14:23:03,120 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 41 transitions. [2022-11-23 14:23:03,120 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 41 transitions. Word has length 21 [2022-11-23 14:23:03,121 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:23:03,121 INFO L495 AbstractCegarLoop]: Abstraction has 35 states and 41 transitions. [2022-11-23 14:23:03,121 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 1.1818181818181819) internal successors, (13), 9 states have internal predecessors, (13), 3 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-23 14:23:03,122 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 41 transitions. [2022-11-23 14:23:03,122 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-11-23 14:23:03,123 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:23:03,123 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:23:03,139 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17665640-d999-4eab-837e-d087fd1a3c89/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2022-11-23 14:23:03,334 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17665640-d999-4eab-837e-d087fd1a3c89/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 14:23:03,335 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 14:23:03,335 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:23:03,335 INFO L85 PathProgramCache]: Analyzing trace with hash 953578392, now seen corresponding path program 1 times [2022-11-23 14:23:03,336 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-23 14:23:03,336 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [238573914] [2022-11-23 14:23:03,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:23:03,336 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 14:23:03,337 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17665640-d999-4eab-837e-d087fd1a3c89/bin/utaipan-Q6hlc19bkW/mathsat [2022-11-23 14:23:03,338 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17665640-d999-4eab-837e-d087fd1a3c89/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-23 14:23:03,347 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17665640-d999-4eab-837e-d087fd1a3c89/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2022-11-23 14:23:03,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:23:03,465 INFO L263 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 21 conjunts are in the unsatisfiable core [2022-11-23 14:23:03,468 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 14:23:04,563 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 14:23:04,565 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:23:04,617 INFO L321 Elim1Store]: treesize reduction 14, result has 63.2 percent of original size [2022-11-23 14:23:04,617 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 32 treesize of output 33 [2022-11-23 14:23:04,835 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 14:23:04,835 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 14:23:05,208 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-23 14:23:05,209 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [238573914] [2022-11-23 14:23:05,209 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [238573914] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 14:23:05,209 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [2102676525] [2022-11-23 14:23:05,209 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:23:05,209 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-23 14:23:05,210 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17665640-d999-4eab-837e-d087fd1a3c89/bin/utaipan-Q6hlc19bkW/cvc4 [2022-11-23 14:23:05,215 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17665640-d999-4eab-837e-d087fd1a3c89/bin/utaipan-Q6hlc19bkW/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-23 14:23:05,230 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17665640-d999-4eab-837e-d087fd1a3c89/bin/utaipan-Q6hlc19bkW/cvc4 --incremental --print-success --lang smt (5)] Waiting until timeout for monitored process [2022-11-23 14:23:05,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:23:05,326 INFO L263 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 9 conjunts are in the unsatisfiable core [2022-11-23 14:23:05,328 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 14:23:05,337 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 6 [2022-11-23 14:23:08,584 WARN L859 $PredicateComparison]: unable to prove that (exists ((|v_ULTIMATE.start_main_~a~0#1.base_BEFORE_CALL_2| (_ BitVec 32))) (= ((as const (Array (_ BitVec 32) (_ BitVec 32))) (_ bv0 32)) (select |c_#memory_int| |v_ULTIMATE.start_main_~a~0#1.base_BEFORE_CALL_2|))) is different from true [2022-11-23 14:23:09,063 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 23 [2022-11-23 14:23:09,170 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-23 14:23:09,170 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 14:23:09,171 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [2102676525] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:23:09,171 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-23 14:23:09,172 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [17] total 21 [2022-11-23 14:23:09,172 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2094240746] [2022-11-23 14:23:09,172 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:23:09,173 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-23 14:23:09,173 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-23 14:23:09,175 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-23 14:23:09,176 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=487, Unknown=1, NotChecked=44, Total=600 [2022-11-23 14:23:09,176 INFO L87 Difference]: Start difference. First operand 35 states and 41 transitions. Second operand has 8 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 7 states have internal predecessors, (18), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-23 14:23:09,390 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:23:09,390 INFO L93 Difference]: Finished difference Result 45 states and 49 transitions. [2022-11-23 14:23:09,391 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-23 14:23:09,392 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 7 states have internal predecessors, (18), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 23 [2022-11-23 14:23:09,392 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:23:09,394 INFO L225 Difference]: With dead ends: 45 [2022-11-23 14:23:09,394 INFO L226 Difference]: Without dead ends: 43 [2022-11-23 14:23:09,394 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 26 SyntacticMatches, 1 SemanticMatches, 26 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 176 ImplicationChecksByTransitivity, 4.8s TimeCoverageRelationStatistics Valid=89, Invalid=616, Unknown=1, NotChecked=50, Total=756 [2022-11-23 14:23:09,397 INFO L413 NwaCegarLoop]: 25 mSDtfsCounter, 17 mSDsluCounter, 79 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 104 SdHoareTripleChecker+Invalid, 96 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 44 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-23 14:23:09,400 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 104 Invalid, 96 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 50 Invalid, 0 Unknown, 44 Unchecked, 0.1s Time] [2022-11-23 14:23:09,402 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2022-11-23 14:23:09,411 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 34. [2022-11-23 14:23:09,414 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34 states, 25 states have (on average 1.12) internal successors, (28), 25 states have internal predecessors, (28), 4 states have call successors, (4), 4 states have call predecessors, (4), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-11-23 14:23:09,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 36 transitions. [2022-11-23 14:23:09,416 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 36 transitions. Word has length 23 [2022-11-23 14:23:09,417 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:23:09,417 INFO L495 AbstractCegarLoop]: Abstraction has 34 states and 36 transitions. [2022-11-23 14:23:09,418 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 7 states have internal predecessors, (18), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-23 14:23:09,418 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 36 transitions. [2022-11-23 14:23:09,419 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2022-11-23 14:23:09,419 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:23:09,419 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:23:09,435 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17665640-d999-4eab-837e-d087fd1a3c89/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2022-11-23 14:23:09,632 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17665640-d999-4eab-837e-d087fd1a3c89/bin/utaipan-Q6hlc19bkW/cvc4 --incremental --print-success --lang smt (5)] Ended with exit code 0 [2022-11-23 14:23:09,830 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17665640-d999-4eab-837e-d087fd1a3c89/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17665640-d999-4eab-837e-d087fd1a3c89/bin/utaipan-Q6hlc19bkW/cvc4 --incremental --print-success --lang smt [2022-11-23 14:23:09,831 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 14:23:09,832 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:23:09,832 INFO L85 PathProgramCache]: Analyzing trace with hash -1270583733, now seen corresponding path program 1 times [2022-11-23 14:23:09,833 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-23 14:23:09,833 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [997848977] [2022-11-23 14:23:09,833 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:23:09,833 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 14:23:09,833 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17665640-d999-4eab-837e-d087fd1a3c89/bin/utaipan-Q6hlc19bkW/mathsat [2022-11-23 14:23:09,835 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17665640-d999-4eab-837e-d087fd1a3c89/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-23 14:23:09,839 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17665640-d999-4eab-837e-d087fd1a3c89/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2022-11-23 14:23:09,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:23:09,907 INFO L263 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-23 14:23:09,909 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 14:23:09,958 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2022-11-23 14:23:10,011 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-23 14:23:10,011 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 14:23:10,012 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-23 14:23:10,012 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [997848977] [2022-11-23 14:23:10,012 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [997848977] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:23:10,012 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:23:10,012 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-23 14:23:10,013 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2071634120] [2022-11-23 14:23:10,013 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:23:10,013 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-23 14:23:10,014 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-23 14:23:10,014 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-23 14:23:10,014 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-11-23 14:23:10,015 INFO L87 Difference]: Start difference. First operand 34 states and 36 transitions. Second operand has 7 states, 6 states have (on average 3.0) internal successors, (18), 6 states have internal predecessors, (18), 3 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-11-23 14:23:10,204 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:23:10,204 INFO L93 Difference]: Finished difference Result 55 states and 62 transitions. [2022-11-23 14:23:10,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-23 14:23:10,205 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 3.0) internal successors, (18), 6 states have internal predecessors, (18), 3 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 28 [2022-11-23 14:23:10,206 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:23:10,207 INFO L225 Difference]: With dead ends: 55 [2022-11-23 14:23:10,207 INFO L226 Difference]: Without dead ends: 53 [2022-11-23 14:23:10,207 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2022-11-23 14:23:10,208 INFO L413 NwaCegarLoop]: 28 mSDtfsCounter, 14 mSDsluCounter, 114 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 142 SdHoareTripleChecker+Invalid, 69 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-23 14:23:10,208 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 142 Invalid, 69 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-23 14:23:10,209 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2022-11-23 14:23:10,222 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 47. [2022-11-23 14:23:10,223 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47 states, 34 states have (on average 1.1470588235294117) internal successors, (39), 35 states have internal predecessors, (39), 7 states have call successors, (7), 5 states have call predecessors, (7), 5 states have return successors, (7), 6 states have call predecessors, (7), 7 states have call successors, (7) [2022-11-23 14:23:10,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 53 transitions. [2022-11-23 14:23:10,224 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 53 transitions. Word has length 28 [2022-11-23 14:23:10,224 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:23:10,224 INFO L495 AbstractCegarLoop]: Abstraction has 47 states and 53 transitions. [2022-11-23 14:23:10,225 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 3.0) internal successors, (18), 6 states have internal predecessors, (18), 3 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-11-23 14:23:10,225 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 53 transitions. [2022-11-23 14:23:10,226 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2022-11-23 14:23:10,226 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:23:10,226 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-11-23 14:23:10,247 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17665640-d999-4eab-837e-d087fd1a3c89/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2022-11-23 14:23:10,438 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17665640-d999-4eab-837e-d087fd1a3c89/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 14:23:10,438 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 14:23:10,439 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:23:10,439 INFO L85 PathProgramCache]: Analyzing trace with hash -1943727032, now seen corresponding path program 1 times [2022-11-23 14:23:10,439 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-23 14:23:10,439 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2008253443] [2022-11-23 14:23:10,439 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:23:10,439 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 14:23:10,440 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17665640-d999-4eab-837e-d087fd1a3c89/bin/utaipan-Q6hlc19bkW/mathsat [2022-11-23 14:23:10,441 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17665640-d999-4eab-837e-d087fd1a3c89/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-23 14:23:10,442 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17665640-d999-4eab-837e-d087fd1a3c89/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2022-11-23 14:23:10,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:23:10,529 INFO L263 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 19 conjunts are in the unsatisfiable core [2022-11-23 14:23:10,531 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 14:23:11,683 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 14:23:11,686 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:23:11,691 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-23 14:23:11,691 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 28 treesize of output 13 [2022-11-23 14:23:11,823 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 1 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 14:23:11,823 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 14:23:12,731 INFO L321 Elim1Store]: treesize reduction 42, result has 28.8 percent of original size [2022-11-23 14:23:12,732 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 37 treesize of output 24 [2022-11-23 14:23:12,927 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-23 14:23:12,928 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-23 14:23:12,928 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2008253443] [2022-11-23 14:23:12,928 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2008253443] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 14:23:12,928 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1981286069] [2022-11-23 14:23:12,928 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:23:12,928 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-23 14:23:12,929 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17665640-d999-4eab-837e-d087fd1a3c89/bin/utaipan-Q6hlc19bkW/cvc4 [2022-11-23 14:23:12,932 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17665640-d999-4eab-837e-d087fd1a3c89/bin/utaipan-Q6hlc19bkW/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-23 14:23:12,951 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17665640-d999-4eab-837e-d087fd1a3c89/bin/utaipan-Q6hlc19bkW/cvc4 --incremental --print-success --lang smt (8)] Waiting until timeout for monitored process [2022-11-23 14:23:13,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:23:13,042 INFO L263 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 9 conjunts are in the unsatisfiable core [2022-11-23 14:23:13,044 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 14:23:13,053 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 6 [2022-11-23 14:23:16,191 WARN L859 $PredicateComparison]: unable to prove that (exists ((|v_ULTIMATE.start_main_~a~0#1.base_BEFORE_CALL_7| (_ BitVec 32))) (= ((as const (Array (_ BitVec 32) (_ BitVec 32))) (_ bv0 32)) (select |c_#memory_int| |v_ULTIMATE.start_main_~a~0#1.base_BEFORE_CALL_7|))) is different from true [2022-11-23 14:23:18,425 WARN L859 $PredicateComparison]: unable to prove that (exists ((|v_ULTIMATE.start_main_~a~0#1.base_BEFORE_CALL_8| (_ BitVec 32))) (= ((as const (Array (_ BitVec 32) (_ BitVec 32))) (_ bv0 32)) (select |c_#memory_int| |v_ULTIMATE.start_main_~a~0#1.base_BEFORE_CALL_8|))) is different from true [2022-11-23 14:23:18,713 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 23 [2022-11-23 14:23:18,813 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 2 not checked. [2022-11-23 14:23:18,814 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 14:23:31,447 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1981286069] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 14:23:31,447 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [438381114] [2022-11-23 14:23:31,447 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:23:31,448 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 14:23:31,448 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17665640-d999-4eab-837e-d087fd1a3c89/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 14:23:31,451 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17665640-d999-4eab-837e-d087fd1a3c89/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 14:23:31,452 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17665640-d999-4eab-837e-d087fd1a3c89/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-11-23 14:23:31,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:23:31,526 INFO L263 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 12 conjunts are in the unsatisfiable core [2022-11-23 14:23:31,528 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 14:23:31,559 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 6 [2022-11-23 14:23:33,591 WARN L859 $PredicateComparison]: unable to prove that (exists ((|v_ULTIMATE.start_main_~a~0#1.base_BEFORE_CALL_9| (_ BitVec 32))) (= ((as const (Array (_ BitVec 32) (_ BitVec 32))) (_ bv0 32)) (select |c_#memory_int| |v_ULTIMATE.start_main_~a~0#1.base_BEFORE_CALL_9|))) is different from true [2022-11-23 14:23:36,547 WARN L859 $PredicateComparison]: unable to prove that (exists ((|v_ULTIMATE.start_main_~a~0#1.base_BEFORE_CALL_10| (_ BitVec 32))) (= ((as const (Array (_ BitVec 32) (_ BitVec 32))) (_ bv0 32)) (select |c_#memory_int| |v_ULTIMATE.start_main_~a~0#1.base_BEFORE_CALL_10|))) is different from true [2022-11-23 14:23:36,920 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 23 [2022-11-23 14:23:36,946 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 5 not checked. [2022-11-23 14:23:36,946 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 14:23:36,990 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [438381114] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 14:23:36,991 INFO L184 FreeRefinementEngine]: Found 0 perfect and 4 imperfect interpolant sequences. [2022-11-23 14:23:36,991 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 10, 9, 11] total 29 [2022-11-23 14:23:36,991 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1118481024] [2022-11-23 14:23:36,991 INFO L85 oduleStraightlineAll]: Using 4 imperfect interpolants to construct interpolant automaton [2022-11-23 14:23:36,992 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2022-11-23 14:23:36,992 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-23 14:23:36,993 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2022-11-23 14:23:36,993 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=87, Invalid=569, Unknown=10, NotChecked=204, Total=870 [2022-11-23 14:23:36,994 INFO L87 Difference]: Start difference. First operand 47 states and 53 transitions. Second operand has 29 states, 27 states have (on average 2.259259259259259) internal successors, (61), 26 states have internal predecessors, (61), 6 states have call successors, (12), 8 states have call predecessors, (12), 7 states have return successors, (11), 5 states have call predecessors, (11), 4 states have call successors, (11) [2022-11-23 14:23:39,982 WARN L859 $PredicateComparison]: unable to prove that (let ((.cse0 ((as const (Array (_ BitVec 32) (_ BitVec 32))) (_ bv0 32)))) (and (exists ((|v_ULTIMATE.start_main_~a~0#1.base_BEFORE_CALL_9| (_ BitVec 32))) (= .cse0 (select |c_#memory_int| |v_ULTIMATE.start_main_~a~0#1.base_BEFORE_CALL_9|))) (exists ((|v_ULTIMATE.start_main_~a~0#1.base_BEFORE_CALL_7| (_ BitVec 32))) (= .cse0 (select |c_#memory_int| |v_ULTIMATE.start_main_~a~0#1.base_BEFORE_CALL_7|))) (exists ((|ULTIMATE.start_main_~y~0#1| (_ BitVec 32)) (|v_ULTIMATE.start_main_~a~0#1.base_BEFORE_CALL_3| (_ BitVec 32))) (and (not (bvslt (_ bv1 32) |ULTIMATE.start_main_~y~0#1|)) (let ((.cse1 (select |c_#memory_int| |v_ULTIMATE.start_main_~a~0#1.base_BEFORE_CALL_3|))) (bvsle (select .cse1 (_ bv0 32)) (select .cse1 (bvmul (_ bv4 32) |ULTIMATE.start_main_~y~0#1|)))) (bvslt (_ bv0 32) |ULTIMATE.start_main_~y~0#1|))))) is different from true [2022-11-23 14:23:45,324 WARN L233 SmtUtils]: Spent 5.04s on a formula simplification. DAG size of input: 29 DAG size of output: 11 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 14:23:50,948 WARN L233 SmtUtils]: Spent 5.32s on a formula simplification. DAG size of input: 31 DAG size of output: 13 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 14:24:04,312 WARN L233 SmtUtils]: Spent 6.42s on a formula simplification. DAG size of input: 26 DAG size of output: 7 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 14:24:10,258 WARN L233 SmtUtils]: Spent 5.85s on a formula simplification. DAG size of input: 29 DAG size of output: 11 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 14:24:13,035 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.69s for a HTC check with result VALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-23 14:24:17,940 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:24:17,940 INFO L93 Difference]: Finished difference Result 117 states and 143 transitions. [2022-11-23 14:24:17,942 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-11-23 14:24:17,942 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 27 states have (on average 2.259259259259259) internal successors, (61), 26 states have internal predecessors, (61), 6 states have call successors, (12), 8 states have call predecessors, (12), 7 states have return successors, (11), 5 states have call predecessors, (11), 4 states have call successors, (11) Word has length 30 [2022-11-23 14:24:17,942 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:24:17,943 INFO L225 Difference]: With dead ends: 117 [2022-11-23 14:24:17,943 INFO L226 Difference]: Without dead ends: 0 [2022-11-23 14:24:17,945 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 155 GetRequests, 95 SyntacticMatches, 7 SemanticMatches, 53 ConstructedPredicates, 5 IntricatePredicates, 0 DeprecatedPredicates, 475 ImplicationChecksByTransitivity, 57.8s TimeCoverageRelationStatistics Valid=474, Invalid=1983, Unknown=13, NotChecked=500, Total=2970 [2022-11-23 14:24:17,946 INFO L413 NwaCegarLoop]: 27 mSDtfsCounter, 196 mSDsluCounter, 206 mSDsCounter, 0 mSdLazyCounter, 489 mSolverCounterSat, 138 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 196 SdHoareTripleChecker+Valid, 233 SdHoareTripleChecker+Invalid, 895 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 138 IncrementalHoareTripleChecker+Valid, 489 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 268 IncrementalHoareTripleChecker+Unchecked, 8.1s IncrementalHoareTripleChecker+Time [2022-11-23 14:24:17,946 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [196 Valid, 233 Invalid, 895 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [138 Valid, 489 Invalid, 0 Unknown, 268 Unchecked, 8.1s Time] [2022-11-23 14:24:17,947 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-23 14:24:17,947 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-23 14:24:17,947 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) [2022-11-23 14:24:17,948 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-23 14:24:17,948 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 30 [2022-11-23 14:24:17,948 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:24:17,948 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-23 14:24:17,949 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 27 states have (on average 2.259259259259259) internal successors, (61), 26 states have internal predecessors, (61), 6 states have call successors, (12), 8 states have call predecessors, (12), 7 states have return successors, (11), 5 states have call predecessors, (11), 4 states have call successors, (11) [2022-11-23 14:24:17,949 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-23 14:24:17,949 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-23 14:24:17,951 INFO L805 garLoopResultBuilder]: Registering result SAFE for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-23 14:24:17,961 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17665640-d999-4eab-837e-d087fd1a3c89/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2022-11-23 14:24:18,165 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17665640-d999-4eab-837e-d087fd1a3c89/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2022-11-23 14:24:18,363 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17665640-d999-4eab-837e-d087fd1a3c89/bin/utaipan-Q6hlc19bkW/cvc4 --incremental --print-success --lang smt (8)] Forceful destruction successful, exit code 0 [2022-11-23 14:24:18,558 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17665640-d999-4eab-837e-d087fd1a3c89/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17665640-d999-4eab-837e-d087fd1a3c89/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17665640-d999-4eab-837e-d087fd1a3c89/bin/utaipan-Q6hlc19bkW/cvc4 --incremental --print-success --lang smt [2022-11-23 14:24:18,560 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-11-23 14:24:19,977 INFO L895 garLoopResultBuilder]: At program point L35-2(lines 25 37) the Hoare annotation is: (let ((.cse0 ((as const (Array (_ BitVec 32) (_ BitVec 32))) (_ bv0 32)))) (and (= (_ bv0 32) |ULTIMATE.start_main_#t~malloc6#1.offset|) (= .cse0 (select |#memory_int| |ULTIMATE.start_main_~a~0#1.base|)) (bvsge |ULTIMATE.start_main_~n~0#1| (_ bv0 32)) (bvslt |ULTIMATE.start_main_~n~0#1| (_ bv1073741824 32)) (= .cse0 (select |#memory_int| |ULTIMATE.start_main_#t~malloc6#1.base|)))) [2022-11-23 14:24:19,977 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-11-23 14:24:19,977 INFO L899 garLoopResultBuilder]: For program point L25-2(lines 25 37) no Hoare annotation was computed. [2022-11-23 14:24:19,977 INFO L902 garLoopResultBuilder]: At program point L19(line 19) the Hoare annotation is: true [2022-11-23 14:24:19,977 INFO L899 garLoopResultBuilder]: For program point L19-1(line 19) no Hoare annotation was computed. [2022-11-23 14:24:19,977 INFO L902 garLoopResultBuilder]: At program point L50(lines 16 51) the Hoare annotation is: true [2022-11-23 14:24:19,978 INFO L895 garLoopResultBuilder]: At program point L46(line 46) the Hoare annotation is: (let ((.cse0 ((as const (Array (_ BitVec 32) (_ BitVec 32))) (_ bv0 32)))) (and (= (_ bv0 32) |ULTIMATE.start_main_#t~malloc6#1.offset|) (= .cse0 (select |#memory_int| |ULTIMATE.start_main_~a~0#1.base|)) (bvsge |ULTIMATE.start_main_~n~0#1| (_ bv0 32)) (bvslt |ULTIMATE.start_main_~n~0#1| (_ bv1073741824 32)) (exists ((|ULTIMATE.start_main_~i~0#1| (_ BitVec 32)) (|ULTIMATE.start_main_~a~0#1.offset| (_ BitVec 32)) (|ULTIMATE.start_main_~x~0#1| (_ BitVec 32))) (and (= |ULTIMATE.start_main_#t~mem15#1| (select .cse0 (bvadd |ULTIMATE.start_main_~a~0#1.offset| (bvmul (_ bv4 32) |ULTIMATE.start_main_~i~0#1|)))) (= (select .cse0 (bvadd (bvmul (_ bv4 32) |ULTIMATE.start_main_~x~0#1|) |ULTIMATE.start_main_~a~0#1.offset|)) |ULTIMATE.start_main_#t~mem16#1|))) (let ((.cse1 (bvmul (_ bv4 32) |ULTIMATE.start_main_~x~0#1|))) (or (= (bvadd (_ bv4 32) .cse1) (_ bv0 32)) (bvslt (bvadd |ULTIMATE.start_main_~x~0#1| (_ bv1 32)) |ULTIMATE.start_main_~y~0#1|) (not (bvslt |ULTIMATE.start_main_~x~0#1| |ULTIMATE.start_main_~y~0#1|)) (= .cse1 (_ bv0 32)))) (= .cse0 (select |#memory_int| |ULTIMATE.start_main_#t~malloc6#1.base|)))) [2022-11-23 14:24:19,978 INFO L899 garLoopResultBuilder]: For program point L46-1(line 46) no Hoare annotation was computed. [2022-11-23 14:24:19,978 INFO L895 garLoopResultBuilder]: At program point L42(line 42) the Hoare annotation is: (let ((.cse0 ((as const (Array (_ BitVec 32) (_ BitVec 32))) (_ bv0 32)))) (and (= (_ bv0 32) |ULTIMATE.start_main_#t~malloc6#1.offset|) (= .cse0 (select |#memory_int| |ULTIMATE.start_main_~a~0#1.base|)) (bvsge |ULTIMATE.start_main_~n~0#1| (_ bv0 32)) (bvslt |ULTIMATE.start_main_~n~0#1| (_ bv1073741824 32)) (let ((.cse1 (bvmul (_ bv4 32) |ULTIMATE.start_main_~x~0#1|))) (or (= (bvadd (_ bv4 32) .cse1) (_ bv0 32)) (bvslt (bvadd |ULTIMATE.start_main_~x~0#1| (_ bv1 32)) |ULTIMATE.start_main_~y~0#1|) (not (bvslt |ULTIMATE.start_main_~x~0#1| |ULTIMATE.start_main_~y~0#1|)) (= .cse1 (_ bv0 32)))) (= .cse0 (select |#memory_int| |ULTIMATE.start_main_#t~malloc6#1.base|)))) [2022-11-23 14:24:19,978 INFO L899 garLoopResultBuilder]: For program point L42-1(line 42) no Hoare annotation was computed. [2022-11-23 14:24:19,979 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2022-11-23 14:24:19,979 INFO L899 garLoopResultBuilder]: For program point L-1-1(line -1) no Hoare annotation was computed. [2022-11-23 14:24:19,979 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-11-23 14:24:19,979 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2022-11-23 14:24:19,979 INFO L895 garLoopResultBuilder]: At program point L43(line 43) the Hoare annotation is: (let ((.cse0 ((as const (Array (_ BitVec 32) (_ BitVec 32))) (_ bv0 32)))) (and (= (_ bv0 32) |ULTIMATE.start_main_#t~malloc6#1.offset|) (= .cse0 (select |#memory_int| |ULTIMATE.start_main_~a~0#1.base|)) (bvsge |ULTIMATE.start_main_~n~0#1| (_ bv0 32)) (bvslt |ULTIMATE.start_main_~n~0#1| (_ bv1073741824 32)) (let ((.cse1 (bvmul (_ bv4 32) |ULTIMATE.start_main_~x~0#1|))) (or (= (bvadd (_ bv4 32) .cse1) (_ bv0 32)) (bvslt (bvadd |ULTIMATE.start_main_~x~0#1| (_ bv1 32)) |ULTIMATE.start_main_~y~0#1|) (not (bvslt |ULTIMATE.start_main_~x~0#1| |ULTIMATE.start_main_~y~0#1|)) (= .cse1 (_ bv0 32)))) (exists ((|ULTIMATE.start_main_~i~0#1| (_ BitVec 32)) (|ULTIMATE.start_main_~a~0#1.offset| (_ BitVec 32)) (|ULTIMATE.start_main_~x~0#1| (_ BitVec 32))) (and (= |ULTIMATE.start_main_#t~mem12#1| (select .cse0 (bvadd |ULTIMATE.start_main_~a~0#1.offset| (bvmul (_ bv4 32) |ULTIMATE.start_main_~i~0#1|)))) (= (select .cse0 (bvadd (bvmul (_ bv4 32) |ULTIMATE.start_main_~x~0#1|) |ULTIMATE.start_main_~a~0#1.offset|)) |ULTIMATE.start_main_#t~mem13#1|))) (= .cse0 (select |#memory_int| |ULTIMATE.start_main_#t~malloc6#1.base|)))) [2022-11-23 14:24:19,980 INFO L899 garLoopResultBuilder]: For program point L45-2(lines 45 47) no Hoare annotation was computed. [2022-11-23 14:24:19,980 INFO L899 garLoopResultBuilder]: For program point L43-1(line 43) no Hoare annotation was computed. [2022-11-23 14:24:19,980 INFO L895 garLoopResultBuilder]: At program point L45-3(lines 45 47) the Hoare annotation is: (let ((.cse0 ((as const (Array (_ BitVec 32) (_ BitVec 32))) (_ bv0 32)))) (and (= (_ bv0 32) |ULTIMATE.start_main_#t~malloc6#1.offset|) (= .cse0 (select |#memory_int| |ULTIMATE.start_main_~a~0#1.base|)) (bvsge |ULTIMATE.start_main_~n~0#1| (_ bv0 32)) (bvslt |ULTIMATE.start_main_~n~0#1| (_ bv1073741824 32)) (let ((.cse1 (bvmul (_ bv4 32) |ULTIMATE.start_main_~x~0#1|))) (or (= (bvadd (_ bv4 32) .cse1) (_ bv0 32)) (bvslt (bvadd |ULTIMATE.start_main_~x~0#1| (_ bv1 32)) |ULTIMATE.start_main_~y~0#1|) (not (bvslt |ULTIMATE.start_main_~x~0#1| |ULTIMATE.start_main_~y~0#1|)) (= .cse1 (_ bv0 32)))) (= .cse0 (select |#memory_int| |ULTIMATE.start_main_#t~malloc6#1.base|)))) [2022-11-23 14:24:19,980 INFO L899 garLoopResultBuilder]: For program point L45-4(lines 45 47) no Hoare annotation was computed. [2022-11-23 14:24:19,980 INFO L899 garLoopResultBuilder]: For program point L35(lines 35 36) no Hoare annotation was computed. [2022-11-23 14:24:19,981 INFO L902 garLoopResultBuilder]: At program point assume_abort_if_notENTRY(lines 7 9) the Hoare annotation is: true [2022-11-23 14:24:19,981 INFO L899 garLoopResultBuilder]: For program point L8(line 8) no Hoare annotation was computed. [2022-11-23 14:24:19,981 INFO L899 garLoopResultBuilder]: For program point L8-2(lines 7 9) no Hoare annotation was computed. [2022-11-23 14:24:19,981 INFO L899 garLoopResultBuilder]: For program point assume_abort_if_notEXIT(lines 7 9) no Hoare annotation was computed. [2022-11-23 14:24:19,981 INFO L902 garLoopResultBuilder]: At program point __VERIFIER_assertENTRY(lines 10 12) the Hoare annotation is: true [2022-11-23 14:24:19,981 INFO L899 garLoopResultBuilder]: For program point L11(line 11) no Hoare annotation was computed. [2022-11-23 14:24:19,982 INFO L899 garLoopResultBuilder]: For program point L11-1(line 11) no Hoare annotation was computed. [2022-11-23 14:24:19,982 INFO L899 garLoopResultBuilder]: For program point __VERIFIER_assertEXIT(lines 10 12) no Hoare annotation was computed. [2022-11-23 14:24:19,982 INFO L899 garLoopResultBuilder]: For program point L11-3(lines 10 12) no Hoare annotation was computed. [2022-11-23 14:24:19,982 INFO L899 garLoopResultBuilder]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 11) no Hoare annotation was computed. [2022-11-23 14:24:19,986 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2022-11-23 14:24:19,988 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-23 14:24:19,993 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.UnsupportedOperationException: translation of (const (_ BitVec 32) (Array (_ BitVec 32) (_ BitVec 32))) not yet implemented, please contact Matthias at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:236) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:137) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:173) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:137) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:173) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:137) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.RCFGBacktranslator.translateExpression(RCFGBacktranslator.java:401) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.RCFGBacktranslator.translateExpression(RCFGBacktranslator.java:1) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ModelTranslationContainer.translateExpression(ModelTranslationContainer.java:106) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ModelTranslationContainer.translateExpressionToString(ModelTranslationContainer.java:89) at de.uni_freiburg.informatik.ultimate.core.lib.results.InvariantResult.getLongDescription(InvariantResult.java:65) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ResultService.reportResult(ResultService.java:86) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopResultReporter.reportResult(CegarLoopResultReporter.java:140) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.createInvariantResults(TraceAbstractionStarter.java:455) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:191) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:154) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2022-11-23 14:24:19,997 INFO L158 Benchmark]: Toolchain (without parser) took 80110.17ms. Allocated memory was 65.0MB in the beginning and 100.7MB in the end (delta: 35.7MB). Free memory was 33.7MB in the beginning and 61.8MB in the end (delta: -28.2MB). Peak memory consumption was 44.8MB. Max. memory is 16.1GB. [2022-11-23 14:24:19,997 INFO L158 Benchmark]: CDTParser took 0.25ms. Allocated memory is still 65.0MB. Free memory was 42.5MB in the beginning and 42.4MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-23 14:24:19,997 INFO L158 Benchmark]: CACSL2BoogieTranslator took 272.73ms. Allocated memory is still 65.0MB. Free memory was 33.5MB in the beginning and 40.3MB in the end (delta: -6.8MB). Peak memory consumption was 7.5MB. Max. memory is 16.1GB. [2022-11-23 14:24:19,998 INFO L158 Benchmark]: Boogie Procedure Inliner took 42.64ms. Allocated memory is still 65.0MB. Free memory was 40.1MB in the beginning and 38.4MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-23 14:24:19,998 INFO L158 Benchmark]: Boogie Preprocessor took 29.89ms. Allocated memory is still 65.0MB. Free memory was 38.4MB in the beginning and 36.9MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-23 14:24:19,999 INFO L158 Benchmark]: RCFGBuilder took 469.87ms. Allocated memory was 65.0MB in the beginning and 83.9MB in the end (delta: 18.9MB). Free memory was 36.9MB in the beginning and 58.9MB in the end (delta: -22.0MB). Peak memory consumption was 10.1MB. Max. memory is 16.1GB. [2022-11-23 14:24:19,999 INFO L158 Benchmark]: TraceAbstraction took 79288.98ms. Allocated memory was 83.9MB in the beginning and 100.7MB in the end (delta: 16.8MB). Free memory was 58.2MB in the beginning and 61.8MB in the end (delta: -3.7MB). Peak memory consumption was 50.3MB. Max. memory is 16.1GB. [2022-11-23 14:24:20,001 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25ms. Allocated memory is still 65.0MB. Free memory was 42.5MB in the beginning and 42.4MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 272.73ms. Allocated memory is still 65.0MB. Free memory was 33.5MB in the beginning and 40.3MB in the end (delta: -6.8MB). Peak memory consumption was 7.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 42.64ms. Allocated memory is still 65.0MB. Free memory was 40.1MB in the beginning and 38.4MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 29.89ms. Allocated memory is still 65.0MB. Free memory was 38.4MB in the beginning and 36.9MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 469.87ms. Allocated memory was 65.0MB in the beginning and 83.9MB in the end (delta: 18.9MB). Free memory was 36.9MB in the beginning and 58.9MB in the end (delta: -22.0MB). Peak memory consumption was 10.1MB. Max. memory is 16.1GB. * TraceAbstraction took 79288.98ms. Allocated memory was 83.9MB in the beginning and 100.7MB in the end (delta: 16.8MB). Free memory was 58.2MB in the beginning and 61.8MB in the end (delta: -3.7MB). Peak memory consumption was 50.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 11]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 30 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 79.2s, OverallIterations: 5, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 42.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 1.4s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 296 SdHoareTripleChecker+Valid, 8.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 291 mSDsluCounter, 643 SdHoareTripleChecker+Invalid, 8.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 312 IncrementalHoareTripleChecker+Unchecked, 511 mSDsCounter, 161 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 781 IncrementalHoareTripleChecker+Invalid, 1254 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 161 mSolverCounterUnsat, 132 mSDtfsCounter, 781 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 283 GetRequests, 173 SyntacticMatches, 8 SemanticMatches, 102 ConstructedPredicates, 6 IntricatePredicates, 0 DeprecatedPredicates, 683 ImplicationChecksByTransitivity, 63.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=47occurred in iteration=4, InterpolantAutomatonStates: 59, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 5 MinimizatonAttempts, 25 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 9 LocationsWithAnnotation, 32 PreInvPairs, 59 NumberOfFragments, 246 HoareAnnotationTreeSize, 32 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 9 FomulaSimplificationsInter, 4180 FormulaSimplificationTreeSizeReductionInter, 1.4s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 32.6s InterpolantComputationTime, 206 NumberOfCodeBlocks, 206 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 227 ConstructedInterpolants, 43 QuantifiedInterpolants, 1676 SizeOfPredicates, 66 NumberOfNonLiveVariables, 533 ConjunctsInSsa, 94 ConjunctsInUnsatCore, 9 InterpolantComputations, 4 PerfectInterpolantSequences, 37/52 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - ExceptionOrErrorResult: UnsupportedOperationException: translation of (const (_ BitVec 32) (Array (_ BitVec 32) (_ BitVec 32))) not yet implemented, please contact Matthias de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: UnsupportedOperationException: translation of (const (_ BitVec 32) (Array (_ BitVec 32) (_ BitVec 32))) not yet implemented, please contact Matthias: de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:236) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2022-11-23 14:24:20,066 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17665640-d999-4eab-837e-d087fd1a3c89/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: UnsupportedOperationException: translation of (const (_ BitVec 32) (Array (_ BitVec 32) (_ BitVec 32))) not yet implemented, please contact Matthias