./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vcegar_QF_BV_itc99_b13_p20.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 8393723b Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c426225b-ad59-4f15-a285-e77fd21f85fc/bin/utaipan-I9t0OCRTmS/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c426225b-ad59-4f15-a285-e77fd21f85fc/bin/utaipan-I9t0OCRTmS/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c426225b-ad59-4f15-a285-e77fd21f85fc/bin/utaipan-I9t0OCRTmS/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c426225b-ad59-4f15-a285-e77fd21f85fc/bin/utaipan-I9t0OCRTmS/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vcegar_QF_BV_itc99_b13_p20.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c426225b-ad59-4f15-a285-e77fd21f85fc/bin/utaipan-I9t0OCRTmS/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c426225b-ad59-4f15-a285-e77fd21f85fc/bin/utaipan-I9t0OCRTmS --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 64bit --witnessprinter.graph.data.programhash ac0172164c3f20d5923c5f32cdac2251f0a2362cf00cbc0397f81051e9a3dd47 --- 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-8393723 [2022-11-19 06:41:47,247 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-19 06:41:47,249 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-19 06:41:47,272 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-19 06:41:47,273 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-19 06:41:47,274 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-19 06:41:47,276 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-19 06:41:47,278 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-19 06:41:47,280 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-19 06:41:47,281 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-19 06:41:47,283 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-19 06:41:47,284 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-19 06:41:47,285 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-19 06:41:47,286 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-19 06:41:47,288 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-19 06:41:47,289 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-19 06:41:47,291 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-19 06:41:47,292 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-19 06:41:47,295 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-19 06:41:47,297 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-19 06:41:47,299 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-19 06:41:47,301 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-19 06:41:47,302 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-19 06:41:47,303 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-19 06:41:47,308 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-19 06:41:47,308 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-19 06:41:47,309 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-19 06:41:47,310 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-19 06:41:47,311 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-19 06:41:47,312 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-19 06:41:47,313 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-19 06:41:47,314 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-19 06:41:47,315 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-19 06:41:47,316 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-19 06:41:47,317 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-19 06:41:47,318 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-19 06:41:47,319 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-19 06:41:47,319 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-19 06:41:47,319 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-19 06:41:47,321 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-19 06:41:47,322 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-19 06:41:47,327 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c426225b-ad59-4f15-a285-e77fd21f85fc/bin/utaipan-I9t0OCRTmS/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-11-19 06:41:47,379 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-19 06:41:47,379 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-19 06:41:47,380 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-19 06:41:47,380 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-19 06:41:47,382 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-19 06:41:47,382 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-19 06:41:47,382 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-19 06:41:47,383 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-19 06:41:47,383 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-19 06:41:47,383 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-19 06:41:47,384 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-19 06:41:47,385 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-19 06:41:47,385 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-19 06:41:47,385 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-19 06:41:47,386 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-19 06:41:47,386 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-19 06:41:47,386 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-19 06:41:47,386 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-19 06:41:47,387 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-19 06:41:47,388 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-19 06:41:47,388 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-19 06:41:47,388 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-19 06:41:47,388 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-19 06:41:47,390 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-19 06:41:47,391 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-19 06:41:47,391 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-19 06:41:47,391 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-19 06:41:47,391 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-19 06:41:47,392 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-19 06:41:47,392 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 06:41:47,392 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-19 06:41:47,393 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-19 06:41:47,393 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-19 06:41:47,393 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-19 06:41:47,393 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-19 06:41:47,394 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-19 06:41:47,394 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-19 06:41:47,394 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-19 06:41:47,394 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_c426225b-ad59-4f15-a285-e77fd21f85fc/bin/utaipan-I9t0OCRTmS/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c426225b-ad59-4f15-a285-e77fd21f85fc/bin/utaipan-I9t0OCRTmS Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ac0172164c3f20d5923c5f32cdac2251f0a2362cf00cbc0397f81051e9a3dd47 [2022-11-19 06:41:47,710 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-19 06:41:47,744 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-19 06:41:47,748 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-19 06:41:47,749 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-19 06:41:47,750 INFO L275 PluginConnector]: CDTParser initialized [2022-11-19 06:41:47,752 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c426225b-ad59-4f15-a285-e77fd21f85fc/bin/utaipan-I9t0OCRTmS/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vcegar_QF_BV_itc99_b13_p20.c [2022-11-19 06:41:47,849 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c426225b-ad59-4f15-a285-e77fd21f85fc/bin/utaipan-I9t0OCRTmS/data/d14ad8986/e535ea7aba054646a885dbf7b794f145/FLAG7df858d17 [2022-11-19 06:41:48,362 INFO L306 CDTParser]: Found 1 translation units. [2022-11-19 06:41:48,363 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c426225b-ad59-4f15-a285-e77fd21f85fc/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vcegar_QF_BV_itc99_b13_p20.c [2022-11-19 06:41:48,374 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c426225b-ad59-4f15-a285-e77fd21f85fc/bin/utaipan-I9t0OCRTmS/data/d14ad8986/e535ea7aba054646a885dbf7b794f145/FLAG7df858d17 [2022-11-19 06:41:48,739 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c426225b-ad59-4f15-a285-e77fd21f85fc/bin/utaipan-I9t0OCRTmS/data/d14ad8986/e535ea7aba054646a885dbf7b794f145 [2022-11-19 06:41:48,743 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-19 06:41:48,745 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-19 06:41:48,747 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-19 06:41:48,748 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-19 06:41:48,757 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-19 06:41:48,759 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 06:41:48" (1/1) ... [2022-11-19 06:41:48,761 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@52fd4105 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:41:48, skipping insertion in model container [2022-11-19 06:41:48,761 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 06:41:48" (1/1) ... [2022-11-19 06:41:48,771 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-19 06:41:48,798 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-19 06:41:49,030 WARN L234 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_c426225b-ad59-4f15-a285-e77fd21f85fc/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vcegar_QF_BV_itc99_b13_p20.c[1107,1120] [2022-11-19 06:41:49,100 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 06:41:49,105 INFO L203 MainTranslator]: Completed pre-run [2022-11-19 06:41:49,119 WARN L234 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_c426225b-ad59-4f15-a285-e77fd21f85fc/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vcegar_QF_BV_itc99_b13_p20.c[1107,1120] [2022-11-19 06:41:49,162 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 06:41:49,178 INFO L208 MainTranslator]: Completed translation [2022-11-19 06:41:49,178 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:41:49 WrapperNode [2022-11-19 06:41:49,179 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-19 06:41:49,180 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-19 06:41:49,181 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-19 06:41:49,181 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-19 06:41:49,191 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:41:49" (1/1) ... [2022-11-19 06:41:49,203 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:41:49" (1/1) ... [2022-11-19 06:41:49,248 INFO L138 Inliner]: procedures = 11, calls = 3, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 243 [2022-11-19 06:41:49,248 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-19 06:41:49,249 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-19 06:41:49,250 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-19 06:41:49,250 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-19 06:41:49,262 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:41:49" (1/1) ... [2022-11-19 06:41:49,262 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:41:49" (1/1) ... [2022-11-19 06:41:49,267 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:41:49" (1/1) ... [2022-11-19 06:41:49,267 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:41:49" (1/1) ... [2022-11-19 06:41:49,275 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:41:49" (1/1) ... [2022-11-19 06:41:49,281 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:41:49" (1/1) ... [2022-11-19 06:41:49,283 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:41:49" (1/1) ... [2022-11-19 06:41:49,285 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:41:49" (1/1) ... [2022-11-19 06:41:49,289 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-19 06:41:49,290 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-19 06:41:49,290 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-19 06:41:49,291 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-19 06:41:49,292 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:41:49" (1/1) ... [2022-11-19 06:41:49,301 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 06:41:49,316 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c426225b-ad59-4f15-a285-e77fd21f85fc/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 06:41:49,333 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c426225b-ad59-4f15-a285-e77fd21f85fc/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-19 06:41:49,336 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c426225b-ad59-4f15-a285-e77fd21f85fc/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-19 06:41:49,387 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-19 06:41:49,388 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-19 06:41:49,521 INFO L235 CfgBuilder]: Building ICFG [2022-11-19 06:41:49,524 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-19 06:41:49,940 INFO L276 CfgBuilder]: Performing block encoding [2022-11-19 06:41:50,217 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-19 06:41:50,218 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-19 06:41:50,221 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 06:41:50 BoogieIcfgContainer [2022-11-19 06:41:50,221 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-19 06:41:50,225 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-19 06:41:50,225 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-19 06:41:50,230 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-19 06:41:50,231 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 06:41:48" (1/3) ... [2022-11-19 06:41:50,232 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b1d8d3b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 06:41:50, skipping insertion in model container [2022-11-19 06:41:50,232 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:41:49" (2/3) ... [2022-11-19 06:41:50,233 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b1d8d3b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 06:41:50, skipping insertion in model container [2022-11-19 06:41:50,233 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 06:41:50" (3/3) ... [2022-11-19 06:41:50,236 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.vcegar_QF_BV_itc99_b13_p20.c [2022-11-19 06:41:50,264 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-19 06:41:50,265 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-19 06:41:50,354 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-19 06:41:50,362 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;@3a24f10b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-19 06:41:50,363 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-19 06:41:50,368 INFO L276 IsEmpty]: Start isEmpty. Operand has 7 states, 5 states have (on average 1.6) internal successors, (8), 6 states have internal predecessors, (8), 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) [2022-11-19 06:41:50,376 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-11-19 06:41:50,377 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 06:41:50,377 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-11-19 06:41:50,378 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 06:41:50,383 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 06:41:50,384 INFO L85 PathProgramCache]: Analyzing trace with hash 4090625, now seen corresponding path program 1 times [2022-11-19 06:41:50,393 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 06:41:50,394 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1402611310] [2022-11-19 06:41:50,394 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 06:41:50,395 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 06:41:50,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-19 06:41:50,718 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-19 06:41:50,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-19 06:41:50,896 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-11-19 06:41:50,900 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-19 06:41:50,902 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-19 06:41:50,905 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-19 06:41:50,911 INFO L444 BasicCegarLoop]: Path program histogram: [1] [2022-11-19 06:41:50,916 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-19 06:41:50,959 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2022-11-19 06:41:50,976 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 06:41:50 BoogieIcfgContainer [2022-11-19 06:41:50,977 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-19 06:41:50,979 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-19 06:41:50,979 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-19 06:41:50,980 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-19 06:41:50,981 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 06:41:50" (3/4) ... [2022-11-19 06:41:50,984 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-19 06:41:50,984 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-19 06:41:50,987 INFO L158 Benchmark]: Toolchain (without parser) took 2241.75ms. Allocated memory is still 130.0MB. Free memory was 96.1MB in the beginning and 67.1MB in the end (delta: 28.9MB). Peak memory consumption was 27.7MB. Max. memory is 16.1GB. [2022-11-19 06:41:50,988 INFO L158 Benchmark]: CDTParser took 0.38ms. Allocated memory is still 90.2MB. Free memory was 43.7MB in the beginning and 43.7MB in the end (delta: 77.0kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-19 06:41:50,989 INFO L158 Benchmark]: CACSL2BoogieTranslator took 432.02ms. Allocated memory is still 130.0MB. Free memory was 95.8MB in the beginning and 102.5MB in the end (delta: -6.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-11-19 06:41:50,991 INFO L158 Benchmark]: Boogie Procedure Inliner took 68.22ms. Allocated memory is still 130.0MB. Free memory was 102.5MB in the beginning and 100.1MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-19 06:41:50,992 INFO L158 Benchmark]: Boogie Preprocessor took 40.08ms. Allocated memory is still 130.0MB. Free memory was 100.1MB in the beginning and 98.4MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-19 06:41:50,998 INFO L158 Benchmark]: RCFGBuilder took 931.35ms. Allocated memory is still 130.0MB. Free memory was 98.4MB in the beginning and 90.8MB in the end (delta: 7.5MB). Peak memory consumption was 32.7MB. Max. memory is 16.1GB. [2022-11-19 06:41:50,998 INFO L158 Benchmark]: TraceAbstraction took 752.48ms. Allocated memory is still 130.0MB. Free memory was 90.2MB in the beginning and 67.7MB in the end (delta: 22.5MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2022-11-19 06:41:51,000 INFO L158 Benchmark]: Witness Printer took 6.24ms. Allocated memory is still 130.0MB. Free memory was 67.7MB in the beginning and 67.1MB in the end (delta: 593.2kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-19 06:41:51,009 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.38ms. Allocated memory is still 90.2MB. Free memory was 43.7MB in the beginning and 43.7MB in the end (delta: 77.0kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 432.02ms. Allocated memory is still 130.0MB. Free memory was 95.8MB in the beginning and 102.5MB in the end (delta: -6.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 68.22ms. Allocated memory is still 130.0MB. Free memory was 102.5MB in the beginning and 100.1MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 40.08ms. Allocated memory is still 130.0MB. Free memory was 100.1MB in the beginning and 98.4MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 931.35ms. Allocated memory is still 130.0MB. Free memory was 98.4MB in the beginning and 90.8MB in the end (delta: 7.5MB). Peak memory consumption was 32.7MB. Max. memory is 16.1GB. * TraceAbstraction took 752.48ms. Allocated memory is still 130.0MB. Free memory was 90.2MB in the beginning and 67.7MB in the end (delta: 22.5MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * Witness Printer took 6.24ms. Allocated memory is still 130.0MB. Free memory was 67.7MB in the beginning and 67.1MB in the end (delta: 593.2kB). There was no memory consumed. 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 - UnprovableResult [Line: 20]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of bitwiseOr at line 131, overapproximation of bitwiseComplement at line 122, overapproximation of bitwiseAnd at line 116. Possible FailurePath: [L25] const SORT_1 mask_SORT_1 = (SORT_1)-1 >> (sizeof(SORT_1) * 8 - 1); [L26] const SORT_1 msb_SORT_1 = (SORT_1)1 << (1 - 1); [L28] const SORT_3 mask_SORT_3 = (SORT_3)-1 >> (sizeof(SORT_3) * 8 - 8); [L29] const SORT_3 msb_SORT_3 = (SORT_3)1 << (8 - 1); [L31] const SORT_10 mask_SORT_10 = (SORT_10)-1 >> (sizeof(SORT_10) * 8 - 32); [L32] const SORT_10 msb_SORT_10 = (SORT_10)1 << (32 - 1); [L34] const SORT_32 mask_SORT_32 = (SORT_32)-1 >> (sizeof(SORT_32) * 8 - 4); [L35] const SORT_32 msb_SORT_32 = (SORT_32)1 << (4 - 1); [L37] const SORT_68 mask_SORT_68 = (SORT_68)-1 >> (sizeof(SORT_68) * 8 - 10); [L38] const SORT_68 msb_SORT_68 = (SORT_68)1 << (10 - 1); [L40] const SORT_1 var_7 = 0; [L41] const SORT_10 var_12 = 1; [L42] const SORT_1 var_22 = 1; [L44] SORT_1 input_2; [L45] SORT_3 input_4; [L46] SORT_1 input_5; [L47] SORT_1 input_6; [L48] SORT_1 input_30; [L49] SORT_32 input_33; [L50] SORT_1 input_35; [L51] SORT_32 input_37; [L52] SORT_1 input_39; [L53] SORT_1 input_41; [L54] SORT_1 input_43; [L55] SORT_1 input_45; [L56] SORT_1 input_47; [L57] SORT_1 input_49; [L58] SORT_1 input_51; [L59] SORT_1 input_53; [L60] SORT_3 input_55; [L61] SORT_1 input_58; [L62] SORT_1 input_62; [L63] SORT_1 input_64; [L64] SORT_1 input_66; [L65] SORT_68 input_69; [L66] SORT_1 input_71; [L67] SORT_1 input_75; [L68] SORT_1 input_83; [L70] SORT_1 state_8 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L71] SORT_1 state_15 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L72] SORT_1 state_26 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L73] SORT_1 state_28 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L74] SORT_1 state_60 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L76] SORT_1 init_9_arg_1 = var_7; [L77] state_8 = init_9_arg_1 [L78] SORT_1 init_16_arg_1 = var_7; [L79] state_15 = init_16_arg_1 [L80] SORT_1 init_27_arg_1 = var_7; [L81] state_26 = init_27_arg_1 [L82] SORT_1 init_29_arg_1 = var_7; [L83] state_28 = init_29_arg_1 [L84] SORT_1 init_61_arg_1 = var_7; [L85] state_60 = init_61_arg_1 VAL [init_16_arg_1=0, init_27_arg_1=0, init_29_arg_1=0, init_61_arg_1=0, init_9_arg_1=0, mask_SORT_1=1, mask_SORT_10=4294967295, mask_SORT_3=255, mask_SORT_32=15, mask_SORT_68=1023, msb_SORT_1=1, msb_SORT_10=2147483648, msb_SORT_3=128, msb_SORT_32=8, msb_SORT_68=512, state_15=0, state_26=0, state_28=0, state_60=0, state_8=0, var_12=1, var_22=1, var_7=0] [L88] input_2 = __VERIFIER_nondet_uchar() [L89] input_4 = __VERIFIER_nondet_uchar() [L90] input_5 = __VERIFIER_nondet_uchar() [L91] input_6 = __VERIFIER_nondet_uchar() [L92] input_30 = __VERIFIER_nondet_uchar() [L93] input_33 = __VERIFIER_nondet_uchar() [L94] input_35 = __VERIFIER_nondet_uchar() [L95] input_37 = __VERIFIER_nondet_uchar() [L96] input_39 = __VERIFIER_nondet_uchar() [L97] input_41 = __VERIFIER_nondet_uchar() [L98] input_43 = __VERIFIER_nondet_uchar() [L99] input_45 = __VERIFIER_nondet_uchar() [L100] input_47 = __VERIFIER_nondet_uchar() [L101] input_49 = __VERIFIER_nondet_uchar() [L102] input_51 = __VERIFIER_nondet_uchar() [L103] input_53 = __VERIFIER_nondet_uchar() [L104] input_55 = __VERIFIER_nondet_uchar() [L105] input_58 = __VERIFIER_nondet_uchar() [L106] input_62 = __VERIFIER_nondet_uchar() [L107] input_64 = __VERIFIER_nondet_uchar() [L108] input_66 = __VERIFIER_nondet_uchar() [L109] input_69 = __VERIFIER_nondet_ushort() [L110] input_71 = __VERIFIER_nondet_uchar() [L111] input_75 = __VERIFIER_nondet_uchar() [L112] input_83 = __VERIFIER_nondet_uchar() [L115] SORT_1 var_11_arg_0 = state_8; [L116] var_11_arg_0 = var_11_arg_0 & mask_SORT_1 [L117] SORT_10 var_11 = var_11_arg_0; [L118] SORT_10 var_13_arg_0 = var_11; [L119] SORT_10 var_13_arg_1 = var_12; [L120] SORT_1 var_13 = var_13_arg_0 == var_13_arg_1; [L121] SORT_1 var_14_arg_0 = var_13; [L122] SORT_1 var_14 = ~var_14_arg_0; [L123] SORT_1 var_17_arg_0 = state_15; [L124] var_17_arg_0 = var_17_arg_0 & mask_SORT_1 [L125] SORT_10 var_17 = var_17_arg_0; [L126] SORT_10 var_18_arg_0 = var_17; [L127] SORT_10 var_18_arg_1 = var_12; [L128] SORT_1 var_18 = var_18_arg_0 == var_18_arg_1; [L129] SORT_1 var_19_arg_0 = var_14; [L130] SORT_1 var_19_arg_1 = var_18; [L131] SORT_1 var_19 = var_19_arg_0 | var_19_arg_1; [L132] SORT_1 var_23_arg_0 = var_19; [L133] SORT_1 var_23 = ~var_23_arg_0; [L134] SORT_1 var_24_arg_0 = var_22; [L135] SORT_1 var_24_arg_1 = var_23; [L136] SORT_1 var_24 = var_24_arg_0 & var_24_arg_1; [L137] var_24 = var_24 & mask_SORT_1 [L138] SORT_1 bad_25_arg_0 = var_24; [L139] CALL __VERIFIER_assert(!(bad_25_arg_0)) [L20] COND TRUE !(cond) VAL [\old(cond)=0, cond=0] [L20] reach_error() VAL [\old(cond)=0, cond=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 7 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.6s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=7occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 4 NumberOfCodeBlocks, 4 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 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 RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-11-19 06:41:51,042 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c426225b-ad59-4f15-a285-e77fd21f85fc/bin/utaipan-I9t0OCRTmS/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-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c426225b-ad59-4f15-a285-e77fd21f85fc/bin/utaipan-I9t0OCRTmS/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c426225b-ad59-4f15-a285-e77fd21f85fc/bin/utaipan-I9t0OCRTmS/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c426225b-ad59-4f15-a285-e77fd21f85fc/bin/utaipan-I9t0OCRTmS/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c426225b-ad59-4f15-a285-e77fd21f85fc/bin/utaipan-I9t0OCRTmS/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vcegar_QF_BV_itc99_b13_p20.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c426225b-ad59-4f15-a285-e77fd21f85fc/bin/utaipan-I9t0OCRTmS/config/svcomp-Reach-64bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c426225b-ad59-4f15-a285-e77fd21f85fc/bin/utaipan-I9t0OCRTmS --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 64bit --witnessprinter.graph.data.programhash ac0172164c3f20d5923c5f32cdac2251f0a2362cf00cbc0397f81051e9a3dd47 --- 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-8393723 [2022-11-19 06:41:53,338 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-19 06:41:53,340 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-19 06:41:53,361 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-19 06:41:53,362 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-19 06:41:53,363 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-19 06:41:53,365 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-19 06:41:53,367 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-19 06:41:53,369 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-19 06:41:53,370 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-19 06:41:53,371 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-19 06:41:53,373 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-19 06:41:53,373 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-19 06:41:53,375 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-19 06:41:53,376 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-19 06:41:53,377 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-19 06:41:53,379 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-19 06:41:53,380 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-19 06:41:53,382 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-19 06:41:53,384 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-19 06:41:53,386 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-19 06:41:53,388 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-19 06:41:53,389 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-19 06:41:53,390 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-19 06:41:53,394 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-19 06:41:53,395 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-19 06:41:53,395 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-19 06:41:53,396 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-19 06:41:53,397 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-19 06:41:53,398 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-19 06:41:53,407 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-19 06:41:53,408 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-19 06:41:53,409 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-19 06:41:53,410 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-19 06:41:53,411 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-19 06:41:53,412 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-19 06:41:53,412 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-19 06:41:53,413 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-19 06:41:53,413 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-19 06:41:53,414 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-19 06:41:53,417 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-19 06:41:53,418 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c426225b-ad59-4f15-a285-e77fd21f85fc/bin/utaipan-I9t0OCRTmS/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2022-11-19 06:41:53,461 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-19 06:41:53,461 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-19 06:41:53,461 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-19 06:41:53,462 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-19 06:41:53,463 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-19 06:41:53,463 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-19 06:41:53,463 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-19 06:41:53,464 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-19 06:41:53,464 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-19 06:41:53,464 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-19 06:41:53,464 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-19 06:41:53,465 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-19 06:41:53,466 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-19 06:41:53,466 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-19 06:41:53,466 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-19 06:41:53,467 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-19 06:41:53,467 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-19 06:41:53,467 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-19 06:41:53,467 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-19 06:41:53,468 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-19 06:41:53,468 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-19 06:41:53,468 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-19 06:41:53,468 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-19 06:41:53,469 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-19 06:41:53,469 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-19 06:41:53,469 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-19 06:41:53,469 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 06:41:53,470 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-19 06:41:53,470 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-19 06:41:53,470 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-19 06:41:53,471 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2022-11-19 06:41:53,471 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-19 06:41:53,471 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-19 06:41:53,471 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-19 06:41:53,472 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-19 06:41:53,472 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_c426225b-ad59-4f15-a285-e77fd21f85fc/bin/utaipan-I9t0OCRTmS/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c426225b-ad59-4f15-a285-e77fd21f85fc/bin/utaipan-I9t0OCRTmS Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ac0172164c3f20d5923c5f32cdac2251f0a2362cf00cbc0397f81051e9a3dd47 [2022-11-19 06:41:53,880 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-19 06:41:53,903 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-19 06:41:53,906 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-19 06:41:53,907 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-19 06:41:53,911 INFO L275 PluginConnector]: CDTParser initialized [2022-11-19 06:41:53,913 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c426225b-ad59-4f15-a285-e77fd21f85fc/bin/utaipan-I9t0OCRTmS/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vcegar_QF_BV_itc99_b13_p20.c [2022-11-19 06:41:53,987 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c426225b-ad59-4f15-a285-e77fd21f85fc/bin/utaipan-I9t0OCRTmS/data/a7a1f66f1/ad7670d4e32243978e8d046d72eba0b3/FLAGeb14252d1 [2022-11-19 06:41:54,555 INFO L306 CDTParser]: Found 1 translation units. [2022-11-19 06:41:54,556 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c426225b-ad59-4f15-a285-e77fd21f85fc/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vcegar_QF_BV_itc99_b13_p20.c [2022-11-19 06:41:54,565 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c426225b-ad59-4f15-a285-e77fd21f85fc/bin/utaipan-I9t0OCRTmS/data/a7a1f66f1/ad7670d4e32243978e8d046d72eba0b3/FLAGeb14252d1 [2022-11-19 06:41:54,895 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c426225b-ad59-4f15-a285-e77fd21f85fc/bin/utaipan-I9t0OCRTmS/data/a7a1f66f1/ad7670d4e32243978e8d046d72eba0b3 [2022-11-19 06:41:54,900 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-19 06:41:54,903 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-19 06:41:54,906 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-19 06:41:54,906 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-19 06:41:54,910 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-19 06:41:54,911 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 06:41:54" (1/1) ... [2022-11-19 06:41:54,913 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@44c2cc98 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:41:54, skipping insertion in model container [2022-11-19 06:41:54,913 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 06:41:54" (1/1) ... [2022-11-19 06:41:54,920 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-19 06:41:54,957 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-19 06:41:55,125 WARN L234 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_c426225b-ad59-4f15-a285-e77fd21f85fc/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vcegar_QF_BV_itc99_b13_p20.c[1107,1120] [2022-11-19 06:41:55,186 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 06:41:55,190 INFO L203 MainTranslator]: Completed pre-run [2022-11-19 06:41:55,228 WARN L234 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_c426225b-ad59-4f15-a285-e77fd21f85fc/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vcegar_QF_BV_itc99_b13_p20.c[1107,1120] [2022-11-19 06:41:55,297 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 06:41:55,309 INFO L208 MainTranslator]: Completed translation [2022-11-19 06:41:55,310 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:41:55 WrapperNode [2022-11-19 06:41:55,310 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-19 06:41:55,311 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-19 06:41:55,311 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-19 06:41:55,311 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-19 06:41:55,318 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:41:55" (1/1) ... [2022-11-19 06:41:55,327 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:41:55" (1/1) ... [2022-11-19 06:41:55,354 INFO L138 Inliner]: procedures = 11, calls = 3, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 201 [2022-11-19 06:41:55,355 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-19 06:41:55,355 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-19 06:41:55,356 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-19 06:41:55,356 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-19 06:41:55,364 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:41:55" (1/1) ... [2022-11-19 06:41:55,364 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:41:55" (1/1) ... [2022-11-19 06:41:55,369 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:41:55" (1/1) ... [2022-11-19 06:41:55,369 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:41:55" (1/1) ... [2022-11-19 06:41:55,375 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:41:55" (1/1) ... [2022-11-19 06:41:55,379 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:41:55" (1/1) ... [2022-11-19 06:41:55,381 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:41:55" (1/1) ... [2022-11-19 06:41:55,382 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:41:55" (1/1) ... [2022-11-19 06:41:55,385 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-19 06:41:55,386 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-19 06:41:55,386 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-19 06:41:55,386 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-19 06:41:55,387 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:41:55" (1/1) ... [2022-11-19 06:41:55,412 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 06:41:55,424 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c426225b-ad59-4f15-a285-e77fd21f85fc/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 06:41:55,435 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c426225b-ad59-4f15-a285-e77fd21f85fc/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-19 06:41:55,450 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c426225b-ad59-4f15-a285-e77fd21f85fc/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-19 06:41:55,490 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-19 06:41:55,490 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-19 06:41:55,624 INFO L235 CfgBuilder]: Building ICFG [2022-11-19 06:41:55,626 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-19 06:41:55,954 INFO L276 CfgBuilder]: Performing block encoding [2022-11-19 06:41:55,961 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-19 06:41:55,967 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-19 06:41:55,969 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 06:41:55 BoogieIcfgContainer [2022-11-19 06:41:55,969 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-19 06:41:55,972 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-19 06:41:55,972 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-19 06:41:55,974 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-19 06:41:55,975 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 06:41:54" (1/3) ... [2022-11-19 06:41:55,976 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4cede0ed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 06:41:55, skipping insertion in model container [2022-11-19 06:41:55,976 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:41:55" (2/3) ... [2022-11-19 06:41:55,976 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4cede0ed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 06:41:55, skipping insertion in model container [2022-11-19 06:41:55,976 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 06:41:55" (3/3) ... [2022-11-19 06:41:55,978 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.vcegar_QF_BV_itc99_b13_p20.c [2022-11-19 06:41:55,995 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-19 06:41:55,995 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-19 06:41:56,052 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-19 06:41:56,059 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;@1392f019, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-19 06:41:56,059 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-19 06:41:56,063 INFO L276 IsEmpty]: Start isEmpty. Operand has 11 states, 9 states have (on average 1.4444444444444444) internal successors, (13), 10 states have internal predecessors, (13), 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) [2022-11-19 06:41:56,069 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-19 06:41:56,069 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 06:41:56,070 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-11-19 06:41:56,071 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 06:41:56,076 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 06:41:56,076 INFO L85 PathProgramCache]: Analyzing trace with hash 28698761, now seen corresponding path program 1 times [2022-11-19 06:41:56,088 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-19 06:41:56,089 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [375778938] [2022-11-19 06:41:56,089 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 06:41:56,089 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 [2022-11-19 06:41:56,090 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c426225b-ad59-4f15-a285-e77fd21f85fc/bin/utaipan-I9t0OCRTmS/mathsat [2022-11-19 06:41:56,091 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c426225b-ad59-4f15-a285-e77fd21f85fc/bin/utaipan-I9t0OCRTmS/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) [2022-11-19 06:41:56,115 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c426225b-ad59-4f15-a285-e77fd21f85fc/bin/utaipan-I9t0OCRTmS/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 [2022-11-19 06:41:56,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 06:41:56,288 INFO L263 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 22 conjunts are in the unsatisfiable core [2022-11-19 06:41:56,295 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 06:41:56,569 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 06:41:56,569 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 06:41:56,570 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-19 06:41:56,571 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [375778938] [2022-11-19 06:41:56,571 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [375778938] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 06:41:56,572 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 06:41:56,572 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-19 06:41:56,573 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [875872909] [2022-11-19 06:41:56,574 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 06:41:56,578 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-19 06:41:56,578 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-19 06:41:56,605 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-19 06:41:56,606 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-19 06:41:56,608 INFO L87 Difference]: Start difference. First operand has 11 states, 9 states have (on average 1.4444444444444444) internal successors, (13), 10 states have internal predecessors, (13), 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) Second operand has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 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) [2022-11-19 06:41:56,670 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 06:41:56,671 INFO L93 Difference]: Finished difference Result 20 states and 30 transitions. [2022-11-19 06:41:56,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-19 06:41:56,673 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2022-11-19 06:41:56,674 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 06:41:56,681 INFO L225 Difference]: With dead ends: 20 [2022-11-19 06:41:56,681 INFO L226 Difference]: Without dead ends: 11 [2022-11-19 06:41:56,684 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-19 06:41:56,687 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 4 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 13 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-19 06:41:56,688 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 13 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-19 06:41:56,705 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2022-11-19 06:41:56,715 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 9. [2022-11-19 06:41:56,723 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 8 states have (on average 1.125) internal successors, (9), 8 states have internal predecessors, (9), 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) [2022-11-19 06:41:56,724 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2022-11-19 06:41:56,726 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 5 [2022-11-19 06:41:56,726 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 06:41:56,726 INFO L495 AbstractCegarLoop]: Abstraction has 9 states and 9 transitions. [2022-11-19 06:41:56,737 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 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) [2022-11-19 06:41:56,738 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2022-11-19 06:41:56,738 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-19 06:41:56,738 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 06:41:56,739 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2022-11-19 06:41:56,751 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c426225b-ad59-4f15-a285-e77fd21f85fc/bin/utaipan-I9t0OCRTmS/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 [2022-11-19 06:41:56,950 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c426225b-ad59-4f15-a285-e77fd21f85fc/bin/utaipan-I9t0OCRTmS/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 [2022-11-19 06:41:56,951 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 06:41:56,952 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 06:41:56,952 INFO L85 PathProgramCache]: Analyzing trace with hash 271073635, now seen corresponding path program 1 times [2022-11-19 06:41:56,952 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-19 06:41:56,952 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1634017388] [2022-11-19 06:41:56,953 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 06:41:56,953 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 [2022-11-19 06:41:56,953 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c426225b-ad59-4f15-a285-e77fd21f85fc/bin/utaipan-I9t0OCRTmS/mathsat [2022-11-19 06:41:56,958 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c426225b-ad59-4f15-a285-e77fd21f85fc/bin/utaipan-I9t0OCRTmS/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) [2022-11-19 06:41:56,959 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c426225b-ad59-4f15-a285-e77fd21f85fc/bin/utaipan-I9t0OCRTmS/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 [2022-11-19 06:41:57,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 06:41:57,198 INFO L263 TraceCheckSpWp]: Trace formula consists of 177 conjuncts, 29 conjunts are in the unsatisfiable core [2022-11-19 06:41:57,202 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 06:41:57,386 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 06:41:57,386 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 06:41:57,757 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 06:41:57,757 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-19 06:41:57,758 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1634017388] [2022-11-19 06:41:57,758 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1634017388] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 06:41:57,762 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [669344344] [2022-11-19 06:41:57,763 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 06:41:57,763 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-19 06:41:57,764 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c426225b-ad59-4f15-a285-e77fd21f85fc/bin/utaipan-I9t0OCRTmS/cvc4 [2022-11-19 06:41:57,766 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c426225b-ad59-4f15-a285-e77fd21f85fc/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-19 06:41:57,787 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c426225b-ad59-4f15-a285-e77fd21f85fc/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt (4)] Waiting until timeout for monitored process [2022-11-19 06:41:57,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 06:41:57,982 INFO L263 TraceCheckSpWp]: Trace formula consists of 177 conjuncts, 29 conjunts are in the unsatisfiable core [2022-11-19 06:41:57,985 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 06:41:58,083 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 06:41:58,084 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 06:41:58,274 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 06:41:58,274 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [669344344] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 06:41:58,274 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1764120202] [2022-11-19 06:41:58,275 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 06:41:58,275 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 06:41:58,275 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c426225b-ad59-4f15-a285-e77fd21f85fc/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 06:41:58,279 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c426225b-ad59-4f15-a285-e77fd21f85fc/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 06:41:58,299 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c426225b-ad59-4f15-a285-e77fd21f85fc/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-19 06:41:58,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 06:41:58,403 INFO L263 TraceCheckSpWp]: Trace formula consists of 177 conjuncts, 32 conjunts are in the unsatisfiable core [2022-11-19 06:41:58,406 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 06:41:58,532 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 06:41:58,532 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 06:41:58,775 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 06:41:58,775 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1764120202] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 06:41:58,776 INFO L184 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2022-11-19 06:41:58,776 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5, 5, 6, 6] total 10 [2022-11-19 06:41:58,777 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1826417743] [2022-11-19 06:41:58,777 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2022-11-19 06:41:58,777 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-19 06:41:58,778 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-19 06:41:58,778 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-19 06:41:58,778 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-11-19 06:41:58,779 INFO L87 Difference]: Start difference. First operand 9 states and 9 transitions. Second operand has 10 states, 10 states have (on average 1.8) internal successors, (18), 10 states have internal predecessors, (18), 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) [2022-11-19 06:41:58,883 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 06:41:58,883 INFO L93 Difference]: Finished difference Result 16 states and 16 transitions. [2022-11-19 06:41:58,883 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-19 06:41:58,884 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 1.8) internal successors, (18), 10 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2022-11-19 06:41:58,884 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 06:41:58,885 INFO L225 Difference]: With dead ends: 16 [2022-11-19 06:41:58,885 INFO L226 Difference]: Without dead ends: 14 [2022-11-19 06:41:58,887 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 30 SyntacticMatches, 4 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2022-11-19 06:41:58,889 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 14 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 17 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 10 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-19 06:41:58,892 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 17 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 14 Invalid, 0 Unknown, 10 Unchecked, 0.0s Time] [2022-11-19 06:41:58,895 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2022-11-19 06:41:58,899 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 12. [2022-11-19 06:41:58,899 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12 states, 11 states have (on average 1.0909090909090908) internal successors, (12), 11 states have internal predecessors, (12), 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) [2022-11-19 06:41:58,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 12 transitions. [2022-11-19 06:41:58,901 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 12 transitions. Word has length 8 [2022-11-19 06:41:58,901 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 06:41:58,901 INFO L495 AbstractCegarLoop]: Abstraction has 12 states and 12 transitions. [2022-11-19 06:41:58,901 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 1.8) internal successors, (18), 10 states have internal predecessors, (18), 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) [2022-11-19 06:41:58,902 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 12 transitions. [2022-11-19 06:41:58,902 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-19 06:41:58,902 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 06:41:58,903 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1] [2022-11-19 06:41:58,920 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c426225b-ad59-4f15-a285-e77fd21f85fc/bin/utaipan-I9t0OCRTmS/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 [2022-11-19 06:41:59,123 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c426225b-ad59-4f15-a285-e77fd21f85fc/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt (4)] Forceful destruction successful, exit code 0 [2022-11-19 06:41:59,324 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c426225b-ad59-4f15-a285-e77fd21f85fc/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-19 06:41:59,520 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c426225b-ad59-4f15-a285-e77fd21f85fc/bin/utaipan-I9t0OCRTmS/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 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c426225b-ad59-4f15-a285-e77fd21f85fc/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c426225b-ad59-4f15-a285-e77fd21f85fc/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 06:41:59,520 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 06:41:59,521 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 06:41:59,521 INFO L85 PathProgramCache]: Analyzing trace with hash 1020920393, now seen corresponding path program 2 times [2022-11-19 06:41:59,522 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-19 06:41:59,522 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1618065098] [2022-11-19 06:41:59,522 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-19 06:41:59,522 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 [2022-11-19 06:41:59,522 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c426225b-ad59-4f15-a285-e77fd21f85fc/bin/utaipan-I9t0OCRTmS/mathsat [2022-11-19 06:41:59,523 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c426225b-ad59-4f15-a285-e77fd21f85fc/bin/utaipan-I9t0OCRTmS/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) [2022-11-19 06:41:59,534 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c426225b-ad59-4f15-a285-e77fd21f85fc/bin/utaipan-I9t0OCRTmS/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 [2022-11-19 06:41:59,685 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-19 06:41:59,686 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-19 06:41:59,692 INFO L263 TraceCheckSpWp]: Trace formula consists of 278 conjuncts, 50 conjunts are in the unsatisfiable core [2022-11-19 06:41:59,696 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 06:41:59,925 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 06:41:59,925 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 06:42:01,433 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 06:42:01,433 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-19 06:42:01,434 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1618065098] [2022-11-19 06:42:01,434 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1618065098] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 06:42:01,434 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [406585429] [2022-11-19 06:42:01,434 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-19 06:42:01,434 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-19 06:42:01,435 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c426225b-ad59-4f15-a285-e77fd21f85fc/bin/utaipan-I9t0OCRTmS/cvc4 [2022-11-19 06:42:01,439 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c426225b-ad59-4f15-a285-e77fd21f85fc/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-19 06:42:01,463 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c426225b-ad59-4f15-a285-e77fd21f85fc/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt (7)] Waiting until timeout for monitored process [2022-11-19 06:42:01,711 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-19 06:42:01,711 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-19 06:42:01,719 INFO L263 TraceCheckSpWp]: Trace formula consists of 278 conjuncts, 50 conjunts are in the unsatisfiable core [2022-11-19 06:42:01,723 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 06:42:01,889 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 06:42:01,889 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 06:42:02,676 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 06:42:02,677 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [406585429] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 06:42:02,677 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1561296718] [2022-11-19 06:42:02,677 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-19 06:42:02,678 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 06:42:02,678 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c426225b-ad59-4f15-a285-e77fd21f85fc/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 06:42:02,680 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c426225b-ad59-4f15-a285-e77fd21f85fc/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 06:42:02,699 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c426225b-ad59-4f15-a285-e77fd21f85fc/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-11-19 06:42:02,828 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-19 06:42:02,828 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-19 06:42:02,832 INFO L263 TraceCheckSpWp]: Trace formula consists of 278 conjuncts, 57 conjunts are in the unsatisfiable core [2022-11-19 06:42:02,839 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 06:42:03,047 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 06:42:03,048 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 06:42:03,777 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 06:42:03,778 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1561296718] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 06:42:03,778 INFO L184 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2022-11-19 06:42:03,778 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6, 6, 6, 6] total 11 [2022-11-19 06:42:03,778 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1605767383] [2022-11-19 06:42:03,779 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2022-11-19 06:42:03,779 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-19 06:42:03,779 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-19 06:42:03,780 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-19 06:42:03,780 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2022-11-19 06:42:03,780 INFO L87 Difference]: Start difference. First operand 12 states and 12 transitions. Second operand has 11 states, 11 states have (on average 2.1818181818181817) internal successors, (24), 11 states have internal predecessors, (24), 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) [2022-11-19 06:42:03,828 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 06:42:03,828 INFO L93 Difference]: Finished difference Result 12 states and 12 transitions. [2022-11-19 06:42:03,829 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-19 06:42:03,829 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 2.1818181818181817) internal successors, (24), 11 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2022-11-19 06:42:03,830 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 06:42:03,830 INFO L225 Difference]: With dead ends: 12 [2022-11-19 06:42:03,830 INFO L226 Difference]: Without dead ends: 0 [2022-11-19 06:42:03,830 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 45 SyntacticMatches, 6 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=49, Invalid=83, Unknown=0, NotChecked=0, Total=132 [2022-11-19 06:42:03,831 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 4 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 8 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 1 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-19 06:42:03,832 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 8 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 1 Unchecked, 0.0s Time] [2022-11-19 06:42:03,833 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-19 06:42:03,833 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-19 06:42:03,833 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) [2022-11-19 06:42:03,833 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-19 06:42:03,834 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 11 [2022-11-19 06:42:03,834 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 06:42:03,834 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-19 06:42:03,834 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 2.1818181818181817) internal successors, (24), 11 states have internal predecessors, (24), 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) [2022-11-19 06:42:03,834 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-19 06:42:03,835 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-19 06:42:03,837 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-19 06:42:03,843 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c426225b-ad59-4f15-a285-e77fd21f85fc/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt (7)] Forceful destruction successful, exit code 0 [2022-11-19 06:42:04,049 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c426225b-ad59-4f15-a285-e77fd21f85fc/bin/utaipan-I9t0OCRTmS/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 [2022-11-19 06:42:04,246 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c426225b-ad59-4f15-a285-e77fd21f85fc/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2022-11-19 06:42:04,441 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c426225b-ad59-4f15-a285-e77fd21f85fc/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c426225b-ad59-4f15-a285-e77fd21f85fc/bin/utaipan-I9t0OCRTmS/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_c426225b-ad59-4f15-a285-e77fd21f85fc/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 06:42:04,444 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-11-19 06:42:04,512 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-11-19 06:42:04,513 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2022-11-19 06:42:04,513 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-11-19 06:42:04,513 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2022-11-19 06:42:04,513 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 20) no Hoare annotation was computed. [2022-11-19 06:42:04,513 INFO L899 garLoopResultBuilder]: For program point L20(line 20) no Hoare annotation was computed. [2022-11-19 06:42:04,514 INFO L895 garLoopResultBuilder]: At program point L86-2(lines 86 197) the Hoare annotation is: (and (= (_ bv1 8) |ULTIMATE.start_main_~var_22~0#1|) (= (_ bv1 8) |ULTIMATE.start_main_~mask_SORT_1~0#1|) (= |ULTIMATE.start_main_~var_7~0#1| |ULTIMATE.start_main_~state_60~0#1|) (= |ULTIMATE.start_main_~var_12~0#1| (_ bv1 32)) (= |ULTIMATE.start_main_~var_7~0#1| |ULTIMATE.start_main_~state_28~0#1|) (= (_ bv0 8) |ULTIMATE.start_main_~state_28~0#1|) (= |ULTIMATE.start_main_~state_8~0#1| |ULTIMATE.start_main_~var_7~0#1|) (= |ULTIMATE.start_main_~var_7~0#1| |ULTIMATE.start_main_~state_15~0#1|)) [2022-11-19 06:42:04,514 INFO L899 garLoopResultBuilder]: For program point L20-1(line 20) no Hoare annotation was computed. [2022-11-19 06:42:04,514 INFO L899 garLoopResultBuilder]: For program point L86-3(lines 86 197) no Hoare annotation was computed. [2022-11-19 06:42:04,514 INFO L899 garLoopResultBuilder]: For program point L20-3(line 20) no Hoare annotation was computed. [2022-11-19 06:42:04,514 INFO L895 garLoopResultBuilder]: At program point L198(lines 22 199) the Hoare annotation is: false [2022-11-19 06:42:04,518 INFO L444 BasicCegarLoop]: Path program histogram: [2, 1] [2022-11-19 06:42:04,525 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-19 06:42:04,552 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 06:42:04 BoogieIcfgContainer [2022-11-19 06:42:04,553 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-19 06:42:04,554 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-19 06:42:04,555 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-19 06:42:04,555 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-19 06:42:04,556 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 06:41:55" (3/4) ... [2022-11-19 06:42:04,559 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-19 06:42:04,577 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2022-11-19 06:42:04,578 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2022-11-19 06:42:04,579 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-19 06:42:04,662 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c426225b-ad59-4f15-a285-e77fd21f85fc/bin/utaipan-I9t0OCRTmS/witness.graphml [2022-11-19 06:42:04,662 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-19 06:42:04,663 INFO L158 Benchmark]: Toolchain (without parser) took 9760.48ms. Allocated memory was 75.5MB in the beginning and 148.9MB in the end (delta: 73.4MB). Free memory was 58.6MB in the beginning and 54.6MB in the end (delta: 4.0MB). Peak memory consumption was 76.2MB. Max. memory is 16.1GB. [2022-11-19 06:42:04,664 INFO L158 Benchmark]: CDTParser took 0.29ms. Allocated memory is still 75.5MB. Free memory was 57.3MB in the beginning and 57.2MB in the end (delta: 94.4kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-19 06:42:04,664 INFO L158 Benchmark]: CACSL2BoogieTranslator took 404.28ms. Allocated memory is still 75.5MB. Free memory was 58.4MB in the beginning and 57.4MB in the end (delta: 1.0MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-11-19 06:42:04,665 INFO L158 Benchmark]: Boogie Procedure Inliner took 43.93ms. Allocated memory is still 75.5MB. Free memory was 57.4MB in the beginning and 55.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-19 06:42:04,665 INFO L158 Benchmark]: Boogie Preprocessor took 29.62ms. Allocated memory is still 75.5MB. Free memory was 55.3MB in the beginning and 53.5MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-19 06:42:04,666 INFO L158 Benchmark]: RCFGBuilder took 583.69ms. Allocated memory is still 75.5MB. Free memory was 53.5MB in the beginning and 37.5MB in the end (delta: 16.0MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-11-19 06:42:04,666 INFO L158 Benchmark]: TraceAbstraction took 8581.27ms. Allocated memory was 75.5MB in the beginning and 148.9MB in the end (delta: 73.4MB). Free memory was 37.1MB in the beginning and 58.8MB in the end (delta: -21.7MB). Peak memory consumption was 52.0MB. Max. memory is 16.1GB. [2022-11-19 06:42:04,667 INFO L158 Benchmark]: Witness Printer took 108.37ms. Allocated memory is still 148.9MB. Free memory was 58.8MB in the beginning and 54.6MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-19 06:42:04,670 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29ms. Allocated memory is still 75.5MB. Free memory was 57.3MB in the beginning and 57.2MB in the end (delta: 94.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 404.28ms. Allocated memory is still 75.5MB. Free memory was 58.4MB in the beginning and 57.4MB in the end (delta: 1.0MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 43.93ms. Allocated memory is still 75.5MB. Free memory was 57.4MB in the beginning and 55.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 29.62ms. Allocated memory is still 75.5MB. Free memory was 55.3MB in the beginning and 53.5MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 583.69ms. Allocated memory is still 75.5MB. Free memory was 53.5MB in the beginning and 37.5MB in the end (delta: 16.0MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 8581.27ms. Allocated memory was 75.5MB in the beginning and 148.9MB in the end (delta: 73.4MB). Free memory was 37.1MB in the beginning and 58.8MB in the end (delta: -21.7MB). Peak memory consumption was 52.0MB. Max. memory is 16.1GB. * Witness Printer took 108.37ms. Allocated memory is still 148.9MB. Free memory was 58.8MB in the beginning and 54.6MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. 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: 20]: 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 1 procedures, 11 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 8.5s, OverallIterations: 3, TraceHistogramMax: 3, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 22 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 22 mSDsluCounter, 38 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 11 IncrementalHoareTripleChecker+Unchecked, 27 mSDsCounter, 4 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 26 IncrementalHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 4 mSolverCounterUnsat, 11 mSDtfsCounter, 26 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 110 GetRequests, 77 SyntacticMatches, 10 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 79 ImplicationChecksByTransitivity, 1.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=12occurred in iteration=2, InterpolantAutomatonStates: 16, 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, 3 MinimizatonAttempts, 4 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 2 LocationsWithAnnotation, 2 PreInvPairs, 5 NumberOfFragments, 26 HoareAnnotationTreeSize, 2 FomulaSimplifications, 8 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 2 FomulaSimplificationsInter, 66 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 5.2s InterpolantComputationTime, 62 NumberOfCodeBlocks, 62 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 106 ConstructedInterpolants, 33 QuantifiedInterpolants, 2512 SizeOfPredicates, 260 NumberOfNonLiveVariables, 1441 ConjunctsInSsa, 269 ConjunctsInUnsatCore, 13 InterpolantComputations, 1 PerfectInterpolantSequences, 0/54 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 - InvariantResult [Line: 22]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 86]: Loop Invariant Derived loop invariant: ((((((1bv8 == var_22 && 1bv8 == mask_SORT_1) && var_7 == state_60) && var_12 == 1bv32) && var_7 == state_28) && 0bv8 == state_28) && state_8 == var_7) && var_7 == state_15 RESULT: Ultimate proved your program to be correct! [2022-11-19 06:42:04,717 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c426225b-ad59-4f15-a285-e77fd21f85fc/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE