./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vcegar_QF_BV_itc99_b13_p01.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 38b53e6a 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_db5f97cf-51ba-402c-8f7b-49814beb73d0/bin/uautomizer-ZsLfNo2U6R/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db5f97cf-51ba-402c-8f7b-49814beb73d0/bin/uautomizer-ZsLfNo2U6R/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db5f97cf-51ba-402c-8f7b-49814beb73d0/bin/uautomizer-ZsLfNo2U6R/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db5f97cf-51ba-402c-8f7b-49814beb73d0/bin/uautomizer-ZsLfNo2U6R/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vcegar_QF_BV_itc99_b13_p01.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db5f97cf-51ba-402c-8f7b-49814beb73d0/bin/uautomizer-ZsLfNo2U6R/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db5f97cf-51ba-402c-8f7b-49814beb73d0/bin/uautomizer-ZsLfNo2U6R --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 Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 3571a4d134092328a8008b483fb2c66f804865f192db9dfc7ab8efafa98cdcb6 --- 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-38b53e6 [2022-11-25 17:44:36,226 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-25 17:44:36,230 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-25 17:44:36,276 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-25 17:44:36,276 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-25 17:44:36,278 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-25 17:44:36,279 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-25 17:44:36,281 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-25 17:44:36,289 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-25 17:44:36,296 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-25 17:44:36,298 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-25 17:44:36,301 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-25 17:44:36,301 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-25 17:44:36,305 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-25 17:44:36,308 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-25 17:44:36,311 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-25 17:44:36,314 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-25 17:44:36,316 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-25 17:44:36,320 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-25 17:44:36,325 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-25 17:44:36,329 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-25 17:44:36,331 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-25 17:44:36,334 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-25 17:44:36,335 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-25 17:44:36,346 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-25 17:44:36,350 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-25 17:44:36,351 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-25 17:44:36,352 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-25 17:44:36,354 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-25 17:44:36,355 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-25 17:44:36,357 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-25 17:44:36,358 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-25 17:44:36,360 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-25 17:44:36,361 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-25 17:44:36,364 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-25 17:44:36,365 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-25 17:44:36,366 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-25 17:44:36,366 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-25 17:44:36,367 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-25 17:44:36,368 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-25 17:44:36,369 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-25 17:44:36,370 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db5f97cf-51ba-402c-8f7b-49814beb73d0/bin/uautomizer-ZsLfNo2U6R/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-11-25 17:44:36,419 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-25 17:44:36,419 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-25 17:44:36,420 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-25 17:44:36,420 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-25 17:44:36,421 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-25 17:44:36,421 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-25 17:44:36,422 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-25 17:44:36,422 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-25 17:44:36,422 INFO L138 SettingsManager]: * Use SBE=true [2022-11-25 17:44:36,422 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-25 17:44:36,423 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-25 17:44:36,423 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-25 17:44:36,423 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-25 17:44:36,423 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-25 17:44:36,423 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-25 17:44:36,424 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-25 17:44:36,424 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-25 17:44:36,424 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-25 17:44:36,424 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-25 17:44:36,425 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-25 17:44:36,425 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-25 17:44:36,425 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 17:44:36,425 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-25 17:44:36,425 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-25 17:44:36,426 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-25 17:44:36,426 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-25 17:44:36,426 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-25 17:44:36,426 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-25 17:44:36,427 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-25 17:44:36,428 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-11-25 17:44:36,428 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-25 17:44:36,428 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db5f97cf-51ba-402c-8f7b-49814beb73d0/bin/uautomizer-ZsLfNo2U6R/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db5f97cf-51ba-402c-8f7b-49814beb73d0/bin/uautomizer-ZsLfNo2U6R Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3571a4d134092328a8008b483fb2c66f804865f192db9dfc7ab8efafa98cdcb6 [2022-11-25 17:44:36,806 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-25 17:44:36,860 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-25 17:44:36,862 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-25 17:44:36,863 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-25 17:44:36,864 INFO L275 PluginConnector]: CDTParser initialized [2022-11-25 17:44:36,868 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db5f97cf-51ba-402c-8f7b-49814beb73d0/bin/uautomizer-ZsLfNo2U6R/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vcegar_QF_BV_itc99_b13_p01.c [2022-11-25 17:44:40,820 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-25 17:44:41,078 INFO L351 CDTParser]: Found 1 translation units. [2022-11-25 17:44:41,079 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db5f97cf-51ba-402c-8f7b-49814beb73d0/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vcegar_QF_BV_itc99_b13_p01.c [2022-11-25 17:44:41,092 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db5f97cf-51ba-402c-8f7b-49814beb73d0/bin/uautomizer-ZsLfNo2U6R/data/2237bd0f7/8aa5bb027fbb457f97cdff6928a39fb0/FLAG533863425 [2022-11-25 17:44:41,110 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db5f97cf-51ba-402c-8f7b-49814beb73d0/bin/uautomizer-ZsLfNo2U6R/data/2237bd0f7/8aa5bb027fbb457f97cdff6928a39fb0 [2022-11-25 17:44:41,113 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-25 17:44:41,115 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-25 17:44:41,117 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-25 17:44:41,117 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-25 17:44:41,122 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-25 17:44:41,123 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 05:44:41" (1/1) ... [2022-11-25 17:44:41,125 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3bb5a5ea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:44:41, skipping insertion in model container [2022-11-25 17:44:41,125 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 05:44:41" (1/1) ... [2022-11-25 17:44:41,135 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-25 17:44:41,178 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-25 17:44:41,369 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db5f97cf-51ba-402c-8f7b-49814beb73d0/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vcegar_QF_BV_itc99_b13_p01.c[1107,1120] [2022-11-25 17:44:41,526 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 17:44:41,533 INFO L203 MainTranslator]: Completed pre-run [2022-11-25 17:44:41,555 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db5f97cf-51ba-402c-8f7b-49814beb73d0/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vcegar_QF_BV_itc99_b13_p01.c[1107,1120] [2022-11-25 17:44:41,648 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 17:44:41,663 INFO L208 MainTranslator]: Completed translation [2022-11-25 17:44:41,663 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:44:41 WrapperNode [2022-11-25 17:44:41,664 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-25 17:44:41,665 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-25 17:44:41,665 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-25 17:44:41,666 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-25 17:44:41,674 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:44:41" (1/1) ... [2022-11-25 17:44:41,691 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:44:41" (1/1) ... [2022-11-25 17:44:41,800 INFO L138 Inliner]: procedures = 11, calls = 3, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 436 [2022-11-25 17:44:41,800 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-25 17:44:41,801 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-25 17:44:41,802 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-25 17:44:41,802 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-25 17:44:41,814 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:44:41" (1/1) ... [2022-11-25 17:44:41,814 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:44:41" (1/1) ... [2022-11-25 17:44:41,822 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:44:41" (1/1) ... [2022-11-25 17:44:41,823 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:44:41" (1/1) ... [2022-11-25 17:44:41,847 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:44:41" (1/1) ... [2022-11-25 17:44:41,863 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:44:41" (1/1) ... [2022-11-25 17:44:41,866 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:44:41" (1/1) ... [2022-11-25 17:44:41,869 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:44:41" (1/1) ... [2022-11-25 17:44:41,875 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-25 17:44:41,892 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-25 17:44:41,892 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-25 17:44:41,892 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-25 17:44:41,894 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:44:41" (1/1) ... [2022-11-25 17:44:41,902 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 17:44:41,915 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db5f97cf-51ba-402c-8f7b-49814beb73d0/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:44:41,933 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db5f97cf-51ba-402c-8f7b-49814beb73d0/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-25 17:44:41,963 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db5f97cf-51ba-402c-8f7b-49814beb73d0/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-25 17:44:41,990 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-25 17:44:41,990 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-25 17:44:42,197 INFO L235 CfgBuilder]: Building ICFG [2022-11-25 17:44:42,212 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-25 17:44:43,725 INFO L276 CfgBuilder]: Performing block encoding [2022-11-25 17:44:43,742 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-25 17:44:43,742 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-25 17:44:43,744 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 05:44:43 BoogieIcfgContainer [2022-11-25 17:44:43,744 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-25 17:44:43,746 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-25 17:44:43,747 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-25 17:44:43,750 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-25 17:44:43,751 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 05:44:41" (1/3) ... [2022-11-25 17:44:43,751 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@64995eac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 05:44:43, skipping insertion in model container [2022-11-25 17:44:43,752 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:44:41" (2/3) ... [2022-11-25 17:44:43,752 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@64995eac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 05:44:43, skipping insertion in model container [2022-11-25 17:44:43,752 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 05:44:43" (3/3) ... [2022-11-25 17:44:43,754 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.vcegar_QF_BV_itc99_b13_p01.c [2022-11-25 17:44:43,776 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-25 17:44:43,779 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-25 17:44:43,836 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-25 17:44:43,843 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=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;@330872f9, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-25 17:44:43,844 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-25 17:44:43,851 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) [2022-11-25 17:44:43,857 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-25 17:44:43,857 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:44:43,858 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-11-25 17:44:43,858 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 17:44:43,863 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:44:43,864 INFO L85 PathProgramCache]: Analyzing trace with hash 28698761, now seen corresponding path program 1 times [2022-11-25 17:44:43,875 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:44:43,875 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1972369158] [2022-11-25 17:44:43,876 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:44:43,876 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:44:44,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 17:44:44,082 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-25 17:44:44,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 17:44:44,270 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-25 17:44:44,272 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-11-25 17:44:44,274 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-25 17:44:44,276 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-25 17:44:44,282 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2022-11-25 17:44:44,286 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-25 17:44:44,341 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2022-11-25 17:44:44,351 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.11 05:44:44 BoogieIcfgContainer [2022-11-25 17:44:44,351 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-25 17:44:44,352 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-25 17:44:44,352 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-25 17:44:44,352 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-25 17:44:44,353 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 05:44:43" (3/4) ... [2022-11-25 17:44:44,356 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-25 17:44:44,356 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-25 17:44:44,358 INFO L158 Benchmark]: Toolchain (without parser) took 3242.59ms. Allocated memory is still 192.9MB. Free memory was 152.9MB in the beginning and 159.6MB in the end (delta: -6.7MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 17:44:44,358 INFO L158 Benchmark]: CDTParser took 0.28ms. Allocated memory is still 125.8MB. Free memory is still 93.8MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 17:44:44,359 INFO L158 Benchmark]: CACSL2BoogieTranslator took 547.25ms. Allocated memory is still 192.9MB. Free memory was 152.9MB in the beginning and 134.0MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2022-11-25 17:44:44,360 INFO L158 Benchmark]: Boogie Procedure Inliner took 135.54ms. Allocated memory is still 192.9MB. Free memory was 134.0MB in the beginning and 129.9MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-25 17:44:44,360 INFO L158 Benchmark]: Boogie Preprocessor took 89.61ms. Allocated memory is still 192.9MB. Free memory was 129.9MB in the beginning and 127.0MB in the end (delta: 2.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-25 17:44:44,361 INFO L158 Benchmark]: RCFGBuilder took 1852.28ms. Allocated memory is still 192.9MB. Free memory was 127.0MB in the beginning and 86.8MB in the end (delta: 40.2MB). Peak memory consumption was 83.7MB. Max. memory is 16.1GB. [2022-11-25 17:44:44,362 INFO L158 Benchmark]: TraceAbstraction took 604.73ms. Allocated memory is still 192.9MB. Free memory was 85.8MB in the beginning and 159.6MB in the end (delta: -73.8MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. [2022-11-25 17:44:44,362 INFO L158 Benchmark]: Witness Printer took 5.03ms. Allocated memory is still 192.9MB. Free memory is still 159.6MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 17:44:44,365 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28ms. Allocated memory is still 125.8MB. Free memory is still 93.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 547.25ms. Allocated memory is still 192.9MB. Free memory was 152.9MB in the beginning and 134.0MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 135.54ms. Allocated memory is still 192.9MB. Free memory was 134.0MB in the beginning and 129.9MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 89.61ms. Allocated memory is still 192.9MB. Free memory was 129.9MB in the beginning and 127.0MB in the end (delta: 2.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 1852.28ms. Allocated memory is still 192.9MB. Free memory was 127.0MB in the beginning and 86.8MB in the end (delta: 40.2MB). Peak memory consumption was 83.7MB. Max. memory is 16.1GB. * TraceAbstraction took 604.73ms. Allocated memory is still 192.9MB. Free memory was 85.8MB in the beginning and 159.6MB in the end (delta: -73.8MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. * Witness Printer took 5.03ms. Allocated memory is still 192.9MB. Free memory is still 159.6MB. 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 bitwiseComplement at line 156, overapproximation of bitwiseOr at line 165, overapproximation of bitwiseAnd at line 150. 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; [L43] const SORT_68 var_69 = 0; [L44] const SORT_10 var_119 = 104; [L46] SORT_1 input_2; [L47] SORT_3 input_4; [L48] SORT_1 input_5; [L49] SORT_1 input_6; [L50] SORT_1 input_30; [L51] SORT_32 input_33; [L52] SORT_1 input_35; [L53] SORT_32 input_37; [L54] SORT_1 input_39; [L55] SORT_1 input_45; [L56] SORT_1 input_47; [L57] SORT_1 input_49; [L58] SORT_3 input_53; [L59] SORT_1 input_56; [L60] SORT_1 input_66; [L61] SORT_1 input_74; [L62] SORT_1 input_80; [L63] SORT_1 input_81; [L64] SORT_1 input_95; [L65] SORT_1 input_101; [L66] SORT_1 input_107; [L67] SORT_1 input_113; [L68] SORT_1 input_114; [L69] SORT_1 input_115; [L70] SORT_1 input_132; [L71] SORT_68 input_139; [L72] SORT_1 input_147; [L73] SORT_1 input_148; [L74] SORT_1 input_149; [L76] SORT_1 state_8 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L77] SORT_1 state_15 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L78] SORT_1 state_26 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L79] SORT_1 state_28 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L80] SORT_1 state_41 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L81] SORT_1 state_43 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L82] SORT_1 state_51 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L83] SORT_1 state_58 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L84] SORT_1 state_60 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L85] SORT_1 state_62 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L86] SORT_1 state_64 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L87] SORT_68 state_70 = __VERIFIER_nondet_ushort() & mask_SORT_68; [L88] SORT_1 state_72 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L90] SORT_1 init_9_arg_1 = var_7; [L91] state_8 = init_9_arg_1 [L92] SORT_1 init_16_arg_1 = var_7; [L93] state_15 = init_16_arg_1 [L94] SORT_1 init_27_arg_1 = var_7; [L95] state_26 = init_27_arg_1 [L96] SORT_1 init_29_arg_1 = var_7; [L97] state_28 = init_29_arg_1 [L98] SORT_1 init_42_arg_1 = var_7; [L99] state_41 = init_42_arg_1 [L100] SORT_1 init_44_arg_1 = var_7; [L101] state_43 = init_44_arg_1 [L102] SORT_1 init_52_arg_1 = var_22; [L103] state_51 = init_52_arg_1 [L104] SORT_1 init_59_arg_1 = var_7; [L105] state_58 = init_59_arg_1 [L106] SORT_1 init_61_arg_1 = var_7; [L107] state_60 = init_61_arg_1 [L108] SORT_1 init_63_arg_1 = var_7; [L109] state_62 = init_63_arg_1 [L110] SORT_1 init_65_arg_1 = var_7; [L111] state_64 = init_65_arg_1 [L112] SORT_68 init_71_arg_1 = var_69; [L113] state_70 = init_71_arg_1 [L114] SORT_1 init_73_arg_1 = var_7; [L115] state_72 = init_73_arg_1 VAL [init_16_arg_1=0, init_27_arg_1=0, init_29_arg_1=0, init_42_arg_1=0, init_44_arg_1=0, init_52_arg_1=1, init_59_arg_1=0, init_61_arg_1=0, init_63_arg_1=0, init_65_arg_1=0, init_71_arg_1=0, init_73_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_41=0, state_43=0, state_51=1, state_58=0, state_60=0, state_62=0, state_64=0, state_70=0, state_72=0, state_8=0, var_119=104, var_12=1, var_22=1, var_69=0, var_7=0] [L118] input_2 = __VERIFIER_nondet_uchar() [L119] input_4 = __VERIFIER_nondet_uchar() [L120] input_5 = __VERIFIER_nondet_uchar() [L121] input_6 = __VERIFIER_nondet_uchar() [L122] input_30 = __VERIFIER_nondet_uchar() [L123] input_33 = __VERIFIER_nondet_uchar() [L124] input_35 = __VERIFIER_nondet_uchar() [L125] input_37 = __VERIFIER_nondet_uchar() [L126] input_39 = __VERIFIER_nondet_uchar() [L127] input_45 = __VERIFIER_nondet_uchar() [L128] input_47 = __VERIFIER_nondet_uchar() [L129] input_49 = __VERIFIER_nondet_uchar() [L130] input_53 = __VERIFIER_nondet_uchar() [L131] input_56 = __VERIFIER_nondet_uchar() [L132] input_66 = __VERIFIER_nondet_uchar() [L133] input_74 = __VERIFIER_nondet_uchar() [L134] input_80 = __VERIFIER_nondet_uchar() [L135] input_81 = __VERIFIER_nondet_uchar() [L136] input_95 = __VERIFIER_nondet_uchar() [L137] input_101 = __VERIFIER_nondet_uchar() [L138] input_107 = __VERIFIER_nondet_uchar() [L139] input_113 = __VERIFIER_nondet_uchar() [L140] input_114 = __VERIFIER_nondet_uchar() [L141] input_115 = __VERIFIER_nondet_uchar() [L142] input_132 = __VERIFIER_nondet_uchar() [L143] input_139 = __VERIFIER_nondet_ushort() [L144] input_147 = __VERIFIER_nondet_uchar() [L145] input_148 = __VERIFIER_nondet_uchar() [L146] input_149 = __VERIFIER_nondet_uchar() [L149] SORT_1 var_11_arg_0 = state_8; [L150] var_11_arg_0 = var_11_arg_0 & mask_SORT_1 [L151] SORT_10 var_11 = var_11_arg_0; [L152] SORT_10 var_13_arg_0 = var_11; [L153] SORT_10 var_13_arg_1 = var_12; [L154] SORT_1 var_13 = var_13_arg_0 == var_13_arg_1; [L155] SORT_1 var_14_arg_0 = var_13; [L156] SORT_1 var_14 = ~var_14_arg_0; [L157] SORT_1 var_17_arg_0 = state_15; [L158] var_17_arg_0 = var_17_arg_0 & mask_SORT_1 [L159] SORT_10 var_17 = var_17_arg_0; [L160] SORT_10 var_18_arg_0 = var_17; [L161] SORT_10 var_18_arg_1 = var_12; [L162] SORT_1 var_18 = var_18_arg_0 == var_18_arg_1; [L163] SORT_1 var_19_arg_0 = var_14; [L164] SORT_1 var_19_arg_1 = var_18; [L165] SORT_1 var_19 = var_19_arg_0 | var_19_arg_1; [L166] SORT_1 var_23_arg_0 = var_19; [L167] SORT_1 var_23 = ~var_23_arg_0; [L168] SORT_1 var_24_arg_0 = var_22; [L169] SORT_1 var_24_arg_1 = var_23; [L170] SORT_1 var_24 = var_24_arg_0 & var_24_arg_1; [L171] var_24 = var_24 & mask_SORT_1 [L172] SORT_1 bad_25_arg_0 = var_24; [L173] 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, 11 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.5s, 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=11occurred 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, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 5 NumberOfCodeBlocks, 5 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 [2022-11-25 17:44:44,395 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db5f97cf-51ba-402c-8f7b-49814beb73d0/bin/uautomizer-ZsLfNo2U6R/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_db5f97cf-51ba-402c-8f7b-49814beb73d0/bin/uautomizer-ZsLfNo2U6R/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db5f97cf-51ba-402c-8f7b-49814beb73d0/bin/uautomizer-ZsLfNo2U6R/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db5f97cf-51ba-402c-8f7b-49814beb73d0/bin/uautomizer-ZsLfNo2U6R/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db5f97cf-51ba-402c-8f7b-49814beb73d0/bin/uautomizer-ZsLfNo2U6R/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vcegar_QF_BV_itc99_b13_p01.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db5f97cf-51ba-402c-8f7b-49814beb73d0/bin/uautomizer-ZsLfNo2U6R/config/svcomp-Reach-64bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db5f97cf-51ba-402c-8f7b-49814beb73d0/bin/uautomizer-ZsLfNo2U6R --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 Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 3571a4d134092328a8008b483fb2c66f804865f192db9dfc7ab8efafa98cdcb6 --- 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-38b53e6 [2022-11-25 17:44:47,246 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-25 17:44:47,248 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-25 17:44:47,285 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-25 17:44:47,285 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-25 17:44:47,287 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-25 17:44:47,289 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-25 17:44:47,291 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-25 17:44:47,294 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-25 17:44:47,295 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-25 17:44:47,297 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-25 17:44:47,298 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-25 17:44:47,299 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-25 17:44:47,300 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-25 17:44:47,302 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-25 17:44:47,304 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-25 17:44:47,305 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-25 17:44:47,306 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-25 17:44:47,309 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-25 17:44:47,312 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-25 17:44:47,314 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-25 17:44:47,316 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-25 17:44:47,318 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-25 17:44:47,319 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-25 17:44:47,324 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-25 17:44:47,325 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-25 17:44:47,326 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-25 17:44:47,327 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-25 17:44:47,328 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-25 17:44:47,329 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-25 17:44:47,329 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-25 17:44:47,331 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-25 17:44:47,332 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-25 17:44:47,333 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-25 17:44:47,335 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-25 17:44:47,335 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-25 17:44:47,337 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-25 17:44:47,337 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-25 17:44:47,338 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-25 17:44:47,339 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-25 17:44:47,340 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-25 17:44:47,341 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db5f97cf-51ba-402c-8f7b-49814beb73d0/bin/uautomizer-ZsLfNo2U6R/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2022-11-25 17:44:47,372 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-25 17:44:47,373 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-25 17:44:47,373 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-25 17:44:47,374 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-25 17:44:47,375 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-25 17:44:47,375 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-25 17:44:47,376 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-25 17:44:47,376 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-25 17:44:47,377 INFO L138 SettingsManager]: * Use SBE=true [2022-11-25 17:44:47,377 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-25 17:44:47,377 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-25 17:44:47,378 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-25 17:44:47,378 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-25 17:44:47,378 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-25 17:44:47,379 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-25 17:44:47,379 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-25 17:44:47,379 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-25 17:44:47,380 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-25 17:44:47,380 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-25 17:44:47,380 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-25 17:44:47,381 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-25 17:44:47,381 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-25 17:44:47,381 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-25 17:44:47,382 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 17:44:47,382 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-25 17:44:47,382 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-25 17:44:47,383 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-25 17:44:47,383 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-11-25 17:44:47,383 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-25 17:44:47,384 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-25 17:44:47,384 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-25 17:44:47,384 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-11-25 17:44:47,385 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-25 17:44:47,385 INFO L138 SettingsManager]: * Logic for external solver=AUFBV [2022-11-25 17:44:47,385 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db5f97cf-51ba-402c-8f7b-49814beb73d0/bin/uautomizer-ZsLfNo2U6R/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db5f97cf-51ba-402c-8f7b-49814beb73d0/bin/uautomizer-ZsLfNo2U6R Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3571a4d134092328a8008b483fb2c66f804865f192db9dfc7ab8efafa98cdcb6 [2022-11-25 17:44:47,809 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-25 17:44:47,850 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-25 17:44:47,855 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-25 17:44:47,857 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-25 17:44:47,857 INFO L275 PluginConnector]: CDTParser initialized [2022-11-25 17:44:47,859 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db5f97cf-51ba-402c-8f7b-49814beb73d0/bin/uautomizer-ZsLfNo2U6R/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vcegar_QF_BV_itc99_b13_p01.c [2022-11-25 17:44:51,303 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-25 17:44:51,627 INFO L351 CDTParser]: Found 1 translation units. [2022-11-25 17:44:51,628 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db5f97cf-51ba-402c-8f7b-49814beb73d0/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vcegar_QF_BV_itc99_b13_p01.c [2022-11-25 17:44:51,639 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db5f97cf-51ba-402c-8f7b-49814beb73d0/bin/uautomizer-ZsLfNo2U6R/data/e290114a7/f39372fdd8b24ca689ec91fd70f63bf3/FLAG47ab07db4 [2022-11-25 17:44:51,656 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db5f97cf-51ba-402c-8f7b-49814beb73d0/bin/uautomizer-ZsLfNo2U6R/data/e290114a7/f39372fdd8b24ca689ec91fd70f63bf3 [2022-11-25 17:44:51,660 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-25 17:44:51,661 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-25 17:44:51,663 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-25 17:44:51,663 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-25 17:44:51,670 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-25 17:44:51,671 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 05:44:51" (1/1) ... [2022-11-25 17:44:51,673 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@19fafa9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:44:51, skipping insertion in model container [2022-11-25 17:44:51,673 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 05:44:51" (1/1) ... [2022-11-25 17:44:51,682 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-25 17:44:51,732 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-25 17:44:51,888 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db5f97cf-51ba-402c-8f7b-49814beb73d0/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vcegar_QF_BV_itc99_b13_p01.c[1107,1120] [2022-11-25 17:44:52,013 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 17:44:52,020 INFO L203 MainTranslator]: Completed pre-run [2022-11-25 17:44:52,033 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db5f97cf-51ba-402c-8f7b-49814beb73d0/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vcegar_QF_BV_itc99_b13_p01.c[1107,1120] [2022-11-25 17:44:52,183 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 17:44:52,209 INFO L208 MainTranslator]: Completed translation [2022-11-25 17:44:52,209 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:44:52 WrapperNode [2022-11-25 17:44:52,210 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-25 17:44:52,211 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-25 17:44:52,212 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-25 17:44:52,212 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-25 17:44:52,221 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:44:52" (1/1) ... [2022-11-25 17:44:52,248 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:44:52" (1/1) ... [2022-11-25 17:44:52,307 INFO L138 Inliner]: procedures = 11, calls = 3, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 436 [2022-11-25 17:44:52,313 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-25 17:44:52,314 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-25 17:44:52,314 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-25 17:44:52,315 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-25 17:44:52,326 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:44:52" (1/1) ... [2022-11-25 17:44:52,327 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:44:52" (1/1) ... [2022-11-25 17:44:52,353 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:44:52" (1/1) ... [2022-11-25 17:44:52,353 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:44:52" (1/1) ... [2022-11-25 17:44:52,366 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:44:52" (1/1) ... [2022-11-25 17:44:52,383 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:44:52" (1/1) ... [2022-11-25 17:44:52,401 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:44:52" (1/1) ... [2022-11-25 17:44:52,404 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:44:52" (1/1) ... [2022-11-25 17:44:52,409 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-25 17:44:52,410 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-25 17:44:52,411 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-25 17:44:52,411 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-25 17:44:52,412 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:44:52" (1/1) ... [2022-11-25 17:44:52,431 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 17:44:52,448 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db5f97cf-51ba-402c-8f7b-49814beb73d0/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:44:52,469 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db5f97cf-51ba-402c-8f7b-49814beb73d0/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-25 17:44:52,499 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db5f97cf-51ba-402c-8f7b-49814beb73d0/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-25 17:44:52,536 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-25 17:44:52,537 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-25 17:44:52,773 INFO L235 CfgBuilder]: Building ICFG [2022-11-25 17:44:52,786 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-25 17:44:53,393 INFO L276 CfgBuilder]: Performing block encoding [2022-11-25 17:44:53,401 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-25 17:44:53,401 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-25 17:44:53,404 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 05:44:53 BoogieIcfgContainer [2022-11-25 17:44:53,404 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-25 17:44:53,407 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-25 17:44:53,407 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-25 17:44:53,411 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-25 17:44:53,411 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 05:44:51" (1/3) ... [2022-11-25 17:44:53,412 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f5d3013 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 05:44:53, skipping insertion in model container [2022-11-25 17:44:53,412 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:44:52" (2/3) ... [2022-11-25 17:44:53,413 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f5d3013 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 05:44:53, skipping insertion in model container [2022-11-25 17:44:53,413 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 05:44:53" (3/3) ... [2022-11-25 17:44:53,415 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.vcegar_QF_BV_itc99_b13_p01.c [2022-11-25 17:44:53,437 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-25 17:44:53,437 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-25 17:44:53,495 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-25 17:44:53,503 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=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;@22d525dc, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-25 17:44:53,504 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-25 17:44:53,511 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) [2022-11-25 17:44:53,518 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-25 17:44:53,519 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:44:53,519 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-11-25 17:44:53,520 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 17:44:53,527 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:44:53,527 INFO L85 PathProgramCache]: Analyzing trace with hash 28698761, now seen corresponding path program 1 times [2022-11-25 17:44:53,542 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-25 17:44:53,542 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [423472786] [2022-11-25 17:44:53,543 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:44:53,543 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 [2022-11-25 17:44:53,544 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db5f97cf-51ba-402c-8f7b-49814beb73d0/bin/uautomizer-ZsLfNo2U6R/mathsat [2022-11-25 17:44:53,550 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db5f97cf-51ba-402c-8f7b-49814beb73d0/bin/uautomizer-ZsLfNo2U6R/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) [2022-11-25 17:44:53,571 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db5f97cf-51ba-402c-8f7b-49814beb73d0/bin/uautomizer-ZsLfNo2U6R/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 [2022-11-25 17:44:53,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:44:53,759 INFO L263 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 22 conjunts are in the unsatisfiable core [2022-11-25 17:44:53,768 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 17:44:54,080 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:44:54,080 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 17:44:54,081 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-25 17:44:54,081 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [423472786] [2022-11-25 17:44:54,082 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [423472786] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:44:54,082 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:44:54,083 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-25 17:44:54,085 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [586684615] [2022-11-25 17:44:54,086 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:44:54,091 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-25 17:44:54,091 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-25 17:44:54,128 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-25 17:44:54,129 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-25 17:44:54,131 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) [2022-11-25 17:44:54,250 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:44:54,251 INFO L93 Difference]: Finished difference Result 20 states and 30 transitions. [2022-11-25 17:44:54,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-25 17:44:54,255 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 [2022-11-25 17:44:54,256 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:44:54,265 INFO L225 Difference]: With dead ends: 20 [2022-11-25 17:44:54,266 INFO L226 Difference]: Without dead ends: 11 [2022-11-25 17:44:54,270 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 [2022-11-25 17:44:54,277 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 4 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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, 0.1s IncrementalHoareTripleChecker+Time [2022-11-25 17:44:54,279 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 13 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-25 17:44:54,300 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2022-11-25 17:44:54,319 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 9. [2022-11-25 17:44:54,320 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) [2022-11-25 17:44:54,321 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2022-11-25 17:44:54,323 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 5 [2022-11-25 17:44:54,323 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:44:54,324 INFO L495 AbstractCegarLoop]: Abstraction has 9 states and 9 transitions. [2022-11-25 17:44:54,324 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) [2022-11-25 17:44:54,325 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2022-11-25 17:44:54,325 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-25 17:44:54,325 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:44:54,325 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2022-11-25 17:44:54,344 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db5f97cf-51ba-402c-8f7b-49814beb73d0/bin/uautomizer-ZsLfNo2U6R/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 [2022-11-25 17:44:54,538 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db5f97cf-51ba-402c-8f7b-49814beb73d0/bin/uautomizer-ZsLfNo2U6R/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 [2022-11-25 17:44:54,539 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 17:44:54,540 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:44:54,540 INFO L85 PathProgramCache]: Analyzing trace with hash 271073635, now seen corresponding path program 1 times [2022-11-25 17:44:54,542 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-25 17:44:54,542 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [406388497] [2022-11-25 17:44:54,542 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:44:54,542 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 [2022-11-25 17:44:54,543 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db5f97cf-51ba-402c-8f7b-49814beb73d0/bin/uautomizer-ZsLfNo2U6R/mathsat [2022-11-25 17:44:54,545 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db5f97cf-51ba-402c-8f7b-49814beb73d0/bin/uautomizer-ZsLfNo2U6R/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) [2022-11-25 17:44:54,550 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db5f97cf-51ba-402c-8f7b-49814beb73d0/bin/uautomizer-ZsLfNo2U6R/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 [2022-11-25 17:44:54,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:44:54,970 INFO L263 TraceCheckSpWp]: Trace formula consists of 381 conjuncts, 34 conjunts are in the unsatisfiable core [2022-11-25 17:44:54,979 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 17:44:55,297 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:44:55,298 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 17:44:56,068 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:44:56,069 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-25 17:44:56,070 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [406388497] [2022-11-25 17:44:56,070 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [406388497] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 17:44:56,072 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-25 17:44:56,072 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2022-11-25 17:44:56,077 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1003543105] [2022-11-25 17:44:56,078 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-25 17:44:56,081 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-25 17:44:56,081 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-25 17:44:56,082 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-25 17:44:56,083 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2022-11-25 17:44:56,083 INFO L87 Difference]: Start difference. First operand 9 states and 9 transitions. Second operand has 8 states, 8 states have (on average 1.75) internal successors, (14), 8 states have internal predecessors, (14), 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) [2022-11-25 17:44:56,274 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:44:56,274 INFO L93 Difference]: Finished difference Result 16 states and 16 transitions. [2022-11-25 17:44:56,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-25 17:44:56,276 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 1.75) internal successors, (14), 8 states have internal predecessors, (14), 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 [2022-11-25 17:44:56,276 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:44:56,276 INFO L225 Difference]: With dead ends: 16 [2022-11-25 17:44:56,277 INFO L226 Difference]: Without dead ends: 14 [2022-11-25 17:44:56,277 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2022-11-25 17:44:56,278 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 9 mSDsluCounter, 11 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 15 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-25 17:44:56,279 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 15 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-25 17:44:56,280 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2022-11-25 17:44:56,286 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 12. [2022-11-25 17:44:56,287 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) [2022-11-25 17:44:56,289 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 12 transitions. [2022-11-25 17:44:56,290 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 12 transitions. Word has length 8 [2022-11-25 17:44:56,292 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:44:56,292 INFO L495 AbstractCegarLoop]: Abstraction has 12 states and 12 transitions. [2022-11-25 17:44:56,293 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 1.75) internal successors, (14), 8 states have internal predecessors, (14), 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) [2022-11-25 17:44:56,298 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 12 transitions. [2022-11-25 17:44:56,299 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-25 17:44:56,299 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:44:56,299 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1] [2022-11-25 17:44:56,324 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db5f97cf-51ba-402c-8f7b-49814beb73d0/bin/uautomizer-ZsLfNo2U6R/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 [2022-11-25 17:44:56,514 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db5f97cf-51ba-402c-8f7b-49814beb73d0/bin/uautomizer-ZsLfNo2U6R/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 [2022-11-25 17:44:56,515 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 17:44:56,515 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:44:56,517 INFO L85 PathProgramCache]: Analyzing trace with hash 1020920393, now seen corresponding path program 2 times [2022-11-25 17:44:56,519 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-25 17:44:56,519 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [282078575] [2022-11-25 17:44:56,520 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-25 17:44:56,520 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 [2022-11-25 17:44:56,520 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db5f97cf-51ba-402c-8f7b-49814beb73d0/bin/uautomizer-ZsLfNo2U6R/mathsat [2022-11-25 17:44:56,522 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db5f97cf-51ba-402c-8f7b-49814beb73d0/bin/uautomizer-ZsLfNo2U6R/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) [2022-11-25 17:44:56,567 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db5f97cf-51ba-402c-8f7b-49814beb73d0/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2022-11-25 17:44:57,012 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-25 17:44:57,013 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-25 17:44:57,036 INFO L263 TraceCheckSpWp]: Trace formula consists of 664 conjuncts, 65 conjunts are in the unsatisfiable core [2022-11-25 17:44:57,045 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 17:44:57,492 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:44:57,493 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 17:45:01,477 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:45:01,477 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-25 17:45:01,478 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [282078575] [2022-11-25 17:45:01,478 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [282078575] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 17:45:01,478 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-25 17:45:01,478 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2022-11-25 17:45:01,479 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1244603824] [2022-11-25 17:45:01,479 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-25 17:45:01,480 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-25 17:45:01,480 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-25 17:45:01,481 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-25 17:45:01,481 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-11-25 17:45:01,481 INFO L87 Difference]: Start difference. First operand 12 states and 12 transitions. Second operand has 10 states, 10 states have (on average 2.0) internal successors, (20), 10 states have internal predecessors, (20), 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) [2022-11-25 17:45:01,750 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:45:01,750 INFO L93 Difference]: Finished difference Result 19 states and 19 transitions. [2022-11-25 17:45:01,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-25 17:45:01,751 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 2.0) internal successors, (20), 10 states have internal predecessors, (20), 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 [2022-11-25 17:45:01,752 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:45:01,752 INFO L225 Difference]: With dead ends: 19 [2022-11-25 17:45:01,752 INFO L226 Difference]: Without dead ends: 17 [2022-11-25 17:45:01,753 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=57, Invalid=99, Unknown=0, NotChecked=0, Total=156 [2022-11-25 17:45:01,754 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 9 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 22 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-25 17:45:01,755 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 22 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-25 17:45:01,756 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2022-11-25 17:45:01,760 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 15. [2022-11-25 17:45:01,761 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 14 states have (on average 1.0714285714285714) internal successors, (15), 14 states have internal predecessors, (15), 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) [2022-11-25 17:45:01,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 15 transitions. [2022-11-25 17:45:01,762 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 15 transitions. Word has length 11 [2022-11-25 17:45:01,762 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:45:01,762 INFO L495 AbstractCegarLoop]: Abstraction has 15 states and 15 transitions. [2022-11-25 17:45:01,763 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 2.0) internal successors, (20), 10 states have internal predecessors, (20), 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) [2022-11-25 17:45:01,763 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 15 transitions. [2022-11-25 17:45:01,764 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-11-25 17:45:01,764 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:45:01,764 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1] [2022-11-25 17:45:01,789 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db5f97cf-51ba-402c-8f7b-49814beb73d0/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2022-11-25 17:45:01,983 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db5f97cf-51ba-402c-8f7b-49814beb73d0/bin/uautomizer-ZsLfNo2U6R/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 [2022-11-25 17:45:01,984 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 17:45:01,985 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:45:01,985 INFO L85 PathProgramCache]: Analyzing trace with hash 1580781475, now seen corresponding path program 3 times [2022-11-25 17:45:01,987 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-25 17:45:01,987 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2018582714] [2022-11-25 17:45:01,987 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-25 17:45:01,987 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 [2022-11-25 17:45:01,988 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db5f97cf-51ba-402c-8f7b-49814beb73d0/bin/uautomizer-ZsLfNo2U6R/mathsat [2022-11-25 17:45:01,989 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db5f97cf-51ba-402c-8f7b-49814beb73d0/bin/uautomizer-ZsLfNo2U6R/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) [2022-11-25 17:45:02,032 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db5f97cf-51ba-402c-8f7b-49814beb73d0/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2022-11-25 17:45:02,569 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2022-11-25 17:45:02,569 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-25 17:45:02,601 INFO L263 TraceCheckSpWp]: Trace formula consists of 947 conjuncts, 118 conjunts are in the unsatisfiable core [2022-11-25 17:45:02,612 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 17:45:05,270 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:45:05,270 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 17:45:12,280 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:45:12,281 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-25 17:45:12,281 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2018582714] [2022-11-25 17:45:12,281 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2018582714] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 17:45:12,282 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-25 17:45:12,282 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 16 [2022-11-25 17:45:12,282 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1624342967] [2022-11-25 17:45:12,283 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-25 17:45:12,283 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-11-25 17:45:12,287 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-25 17:45:12,290 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-11-25 17:45:12,293 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=191, Unknown=0, NotChecked=0, Total=240 [2022-11-25 17:45:12,294 INFO L87 Difference]: Start difference. First operand 15 states and 15 transitions. Second operand has 16 states, 16 states have (on average 1.625) internal successors, (26), 16 states have internal predecessors, (26), 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) [2022-11-25 17:45:13,464 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:45:13,464 INFO L93 Difference]: Finished difference Result 22 states and 22 transitions. [2022-11-25 17:45:13,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-25 17:45:13,465 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 1.625) internal successors, (26), 16 states have internal predecessors, (26), 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 14 [2022-11-25 17:45:13,465 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:45:13,466 INFO L225 Difference]: With dead ends: 22 [2022-11-25 17:45:13,466 INFO L226 Difference]: Without dead ends: 20 [2022-11-25 17:45:13,467 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 4.2s TimeCoverageRelationStatistics Valid=117, Invalid=303, Unknown=0, NotChecked=0, Total=420 [2022-11-25 17:45:13,468 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 24 mSDsluCounter, 30 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 34 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-25 17:45:13,469 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 34 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-25 17:45:13,470 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2022-11-25 17:45:13,476 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 18. [2022-11-25 17:45:13,477 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18 states, 17 states have (on average 1.0588235294117647) internal successors, (18), 17 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) [2022-11-25 17:45:13,478 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 18 transitions. [2022-11-25 17:45:13,478 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 18 transitions. Word has length 14 [2022-11-25 17:45:13,478 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:45:13,479 INFO L495 AbstractCegarLoop]: Abstraction has 18 states and 18 transitions. [2022-11-25 17:45:13,479 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 1.625) internal successors, (26), 16 states have internal predecessors, (26), 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) [2022-11-25 17:45:13,479 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 18 transitions. [2022-11-25 17:45:13,480 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-11-25 17:45:13,480 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:45:13,480 INFO L195 NwaCegarLoop]: trace histogram [5, 4, 4, 1, 1, 1, 1] [2022-11-25 17:45:13,508 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db5f97cf-51ba-402c-8f7b-49814beb73d0/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2022-11-25 17:45:13,701 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db5f97cf-51ba-402c-8f7b-49814beb73d0/bin/uautomizer-ZsLfNo2U6R/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 [2022-11-25 17:45:13,702 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 17:45:13,703 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:45:13,703 INFO L85 PathProgramCache]: Analyzing trace with hash -1250702327, now seen corresponding path program 4 times [2022-11-25 17:45:13,704 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-25 17:45:13,704 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1009449653] [2022-11-25 17:45:13,704 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-11-25 17:45:13,705 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 [2022-11-25 17:45:13,705 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db5f97cf-51ba-402c-8f7b-49814beb73d0/bin/uautomizer-ZsLfNo2U6R/mathsat [2022-11-25 17:45:13,706 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db5f97cf-51ba-402c-8f7b-49814beb73d0/bin/uautomizer-ZsLfNo2U6R/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) [2022-11-25 17:45:13,713 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db5f97cf-51ba-402c-8f7b-49814beb73d0/bin/uautomizer-ZsLfNo2U6R/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 [2022-11-25 17:45:14,328 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-11-25 17:45:14,328 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-25 17:45:14,361 INFO L263 TraceCheckSpWp]: Trace formula consists of 1230 conjuncts, 175 conjunts are in the unsatisfiable core [2022-11-25 17:45:14,379 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 17:45:15,793 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:45:15,794 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 17:46:37,144 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:46:37,145 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-25 17:46:37,145 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1009449653] [2022-11-25 17:46:37,145 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1009449653] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 17:46:37,146 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-25 17:46:37,146 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 14 [2022-11-25 17:46:37,146 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1785185346] [2022-11-25 17:46:37,146 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-25 17:46:37,147 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-25 17:46:37,147 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-25 17:46:37,148 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-25 17:46:37,148 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=121, Unknown=0, NotChecked=0, Total=182 [2022-11-25 17:46:37,149 INFO L87 Difference]: Start difference. First operand 18 states and 18 transitions. Second operand has 14 states, 14 states have (on average 2.2857142857142856) internal successors, (32), 14 states have internal predecessors, (32), 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) [2022-11-25 17:46:37,235 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:46:37,235 INFO L93 Difference]: Finished difference Result 18 states and 18 transitions. [2022-11-25 17:46:37,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-25 17:46:37,237 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 2.2857142857142856) internal successors, (32), 14 states have internal predecessors, (32), 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 17 [2022-11-25 17:46:37,237 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:46:37,237 INFO L225 Difference]: With dead ends: 18 [2022-11-25 17:46:37,237 INFO L226 Difference]: Without dead ends: 0 [2022-11-25 17:46:37,238 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 9.5s TimeCoverageRelationStatistics Valid=75, Invalid=135, Unknown=0, NotChecked=0, Total=210 [2022-11-25 17:46:37,239 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 4 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 5 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 17:46:37,239 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 5 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 17:46:37,240 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-25 17:46:37,241 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-25 17:46:37,241 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) [2022-11-25 17:46:37,241 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-25 17:46:37,241 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 17 [2022-11-25 17:46:37,242 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:46:37,242 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-25 17:46:37,242 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 2.2857142857142856) internal successors, (32), 14 states have internal predecessors, (32), 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) [2022-11-25 17:46:37,242 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-25 17:46:37,243 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-25 17:46:37,246 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-25 17:46:37,269 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db5f97cf-51ba-402c-8f7b-49814beb73d0/bin/uautomizer-ZsLfNo2U6R/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 [2022-11-25 17:46:37,455 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db5f97cf-51ba-402c-8f7b-49814beb73d0/bin/uautomizer-ZsLfNo2U6R/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 [2022-11-25 17:46:37,457 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-11-25 17:46:37,690 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-11-25 17:46:37,691 INFO L895 garLoopResultBuilder]: At program point L116-2(lines 116 420) the Hoare annotation is: (let ((.cse0 (= (_ bv1 8) |ULTIMATE.start_main_~mask_SORT_1~0#1|)) (.cse1 (= |ULTIMATE.start_main_~var_7~0#1| |ULTIMATE.start_main_~state_60~0#1|)) (.cse2 (= |ULTIMATE.start_main_~var_7~0#1| |ULTIMATE.start_main_~state_64~0#1|)) (.cse3 (= |ULTIMATE.start_main_~var_12~0#1| (_ bv1 32))) (.cse4 (= |ULTIMATE.start_main_~var_7~0#1| |ULTIMATE.start_main_~state_28~0#1|)) (.cse5 (= |ULTIMATE.start_main_~var_7~0#1| |ULTIMATE.start_main_~state_58~0#1|)) (.cse6 (= |ULTIMATE.start_main_~var_7~0#1| |ULTIMATE.start_main_~state_41~0#1|)) (.cse7 (= |ULTIMATE.start_main_~state_8~0#1| |ULTIMATE.start_main_~var_7~0#1|))) (or (and .cse0 .cse1 (= |ULTIMATE.start___VERIFIER_assert_~cond#1| (_ bv1 32)) .cse2 .cse3 (= |ULTIMATE.start_main_~var_7~0#1| |ULTIMATE.start_main_~state_43~0#1|) (= |ULTIMATE.start_main_~var_7~0#1| (_ bv0 8)) .cse4 .cse5 .cse6 .cse7) (and (= (_ bv1 8) |ULTIMATE.start_main_~var_22~0#1|) .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 (= (_ bv0 8) |ULTIMATE.start_main_~state_58~0#1|) (= |ULTIMATE.start_main_~state_58~0#1| |ULTIMATE.start_main_~state_43~0#1|) .cse6 .cse7))) [2022-11-25 17:46:37,691 INFO L899 garLoopResultBuilder]: For program point L116-3(lines 116 420) no Hoare annotation was computed. [2022-11-25 17:46:37,691 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2022-11-25 17:46:37,691 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-11-25 17:46:37,692 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2022-11-25 17:46:37,692 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 20) no Hoare annotation was computed. [2022-11-25 17:46:37,692 INFO L899 garLoopResultBuilder]: For program point L20(line 20) no Hoare annotation was computed. [2022-11-25 17:46:37,692 INFO L899 garLoopResultBuilder]: For program point L20-1(line 20) no Hoare annotation was computed. [2022-11-25 17:46:37,692 INFO L899 garLoopResultBuilder]: For program point L20-3(line 20) no Hoare annotation was computed. [2022-11-25 17:46:37,693 INFO L895 garLoopResultBuilder]: At program point L421(lines 22 422) the Hoare annotation is: false [2022-11-25 17:46:37,697 INFO L445 BasicCegarLoop]: Path program histogram: [4, 1] [2022-11-25 17:46:37,704 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-25 17:46:37,730 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.11 05:46:37 BoogieIcfgContainer [2022-11-25 17:46:37,731 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-25 17:46:37,731 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-25 17:46:37,732 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-25 17:46:37,732 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-25 17:46:37,733 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 05:44:53" (3/4) ... [2022-11-25 17:46:37,737 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-25 17:46:37,758 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2022-11-25 17:46:37,765 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2022-11-25 17:46:37,766 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-25 17:46:37,863 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db5f97cf-51ba-402c-8f7b-49814beb73d0/bin/uautomizer-ZsLfNo2U6R/witness.graphml [2022-11-25 17:46:37,863 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-25 17:46:37,864 INFO L158 Benchmark]: Toolchain (without parser) took 106203.01ms. Allocated memory was 71.3MB in the beginning and 400.6MB in the end (delta: 329.3MB). Free memory was 49.0MB in the beginning and 192.1MB in the end (delta: -143.1MB). Peak memory consumption was 189.3MB. Max. memory is 16.1GB. [2022-11-25 17:46:37,865 INFO L158 Benchmark]: CDTParser took 0.38ms. Allocated memory is still 71.3MB. Free memory was 48.8MB in the beginning and 48.7MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 17:46:37,865 INFO L158 Benchmark]: CACSL2BoogieTranslator took 547.40ms. Allocated memory was 71.3MB in the beginning and 88.1MB in the end (delta: 16.8MB). Free memory was 48.9MB in the beginning and 63.2MB in the end (delta: -14.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2022-11-25 17:46:37,866 INFO L158 Benchmark]: Boogie Procedure Inliner took 101.48ms. Allocated memory is still 88.1MB. Free memory was 63.2MB in the beginning and 59.5MB in the end (delta: 3.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-25 17:46:37,866 INFO L158 Benchmark]: Boogie Preprocessor took 95.33ms. Allocated memory is still 88.1MB. Free memory was 59.5MB in the beginning and 57.0MB in the end (delta: 2.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-25 17:46:37,866 INFO L158 Benchmark]: RCFGBuilder took 993.95ms. Allocated memory is still 88.1MB. Free memory was 57.0MB in the beginning and 44.9MB in the end (delta: 12.1MB). Peak memory consumption was 23.7MB. Max. memory is 16.1GB. [2022-11-25 17:46:37,867 INFO L158 Benchmark]: TraceAbstraction took 104324.26ms. Allocated memory was 88.1MB in the beginning and 400.6MB in the end (delta: 312.5MB). Free memory was 44.2MB in the beginning and 199.5MB in the end (delta: -155.3MB). Peak memory consumption was 159.3MB. Max. memory is 16.1GB. [2022-11-25 17:46:37,867 INFO L158 Benchmark]: Witness Printer took 132.15ms. Allocated memory is still 400.6MB. Free memory was 199.5MB in the beginning and 192.1MB in the end (delta: 7.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2022-11-25 17:46:37,870 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 71.3MB. Free memory was 48.8MB in the beginning and 48.7MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 547.40ms. Allocated memory was 71.3MB in the beginning and 88.1MB in the end (delta: 16.8MB). Free memory was 48.9MB in the beginning and 63.2MB in the end (delta: -14.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 101.48ms. Allocated memory is still 88.1MB. Free memory was 63.2MB in the beginning and 59.5MB in the end (delta: 3.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 95.33ms. Allocated memory is still 88.1MB. Free memory was 59.5MB in the beginning and 57.0MB in the end (delta: 2.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 993.95ms. Allocated memory is still 88.1MB. Free memory was 57.0MB in the beginning and 44.9MB in the end (delta: 12.1MB). Peak memory consumption was 23.7MB. Max. memory is 16.1GB. * TraceAbstraction took 104324.26ms. Allocated memory was 88.1MB in the beginning and 400.6MB in the end (delta: 312.5MB). Free memory was 44.2MB in the beginning and 199.5MB in the end (delta: -155.3MB). Peak memory consumption was 159.3MB. Max. memory is 16.1GB. * Witness Printer took 132.15ms. Allocated memory is still 400.6MB. Free memory was 199.5MB in the beginning and 192.1MB in the end (delta: 7.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 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: 104.2s, OverallIterations: 5, TraceHistogramMax: 5, PathProgramHistogramMax: 4, EmptinessCheckTime: 0.0s, AutomataDifference: 1.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.2s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 50 SdHoareTripleChecker+Valid, 0.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 50 mSDsluCounter, 89 SdHoareTripleChecker+Invalid, 0.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 70 mSDsCounter, 16 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 93 IncrementalHoareTripleChecker+Invalid, 109 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 16 mSolverCounterUnsat, 19 mSDtfsCounter, 93 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 108 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 119 ImplicationChecksByTransitivity, 15.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=18occurred in iteration=4, InterpolantAutomatonStates: 34, 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, 5 MinimizatonAttempts, 8 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 2 LocationsWithAnnotation, 2 PreInvPairs, 7 NumberOfFragments, 70 HoareAnnotationTreeSize, 2 FomulaSimplifications, 162 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 2 FomulaSimplificationsInter, 273 FormulaSimplificationTreeSizeReductionInter, 0.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.5s SsaConstructionTime, 1.2s SatisfiabilityAnalysisTime, 98.4s InterpolantComputationTime, 55 NumberOfCodeBlocks, 55 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 96 ConstructedInterpolants, 38 QuantifiedInterpolants, 5420 SizeOfPredicates, 425 NumberOfNonLiveVariables, 3320 ConjunctsInSsa, 414 ConjunctsInUnsatCore, 9 InterpolantComputations, 1 PerfectInterpolantSequences, 0/100 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: 116]: Loop Invariant Derived loop invariant: ((((((((((1bv8 == mask_SORT_1 && var_7 == state_60) && cond == 1bv32) && var_7 == state_64) && var_12 == 1bv32) && var_7 == state_43) && var_7 == 0bv8) && var_7 == state_28) && var_7 == state_58) && var_7 == state_41) && state_8 == var_7) || ((((((((((1bv8 == var_22 && 1bv8 == mask_SORT_1) && var_7 == state_60) && var_7 == state_64) && var_12 == 1bv32) && var_7 == state_28) && var_7 == state_58) && 0bv8 == state_58) && state_58 == state_43) && var_7 == state_41) && state_8 == var_7) RESULT: Ultimate proved your program to be correct! [2022-11-25 17:46:37,918 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db5f97cf-51ba-402c-8f7b-49814beb73d0/bin/uautomizer-ZsLfNo2U6R/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