./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cache_coherence_two.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21d2652c-586e-4a39-8def-2b8eed6fa23b/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21d2652c-586e-4a39-8def-2b8eed6fa23b/bin/utaipan-gh47qXpMRh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21d2652c-586e-4a39-8def-2b8eed6fa23b/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21d2652c-586e-4a39-8def-2b8eed6fa23b/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cache_coherence_two.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21d2652c-586e-4a39-8def-2b8eed6fa23b/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21d2652c-586e-4a39-8def-2b8eed6fa23b/bin/utaipan-gh47qXpMRh --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 16d0a229e446ebb3f7632dc27a51dec3b716b02668fde06be2a0b6ed60024488 --- 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-2329fc7 [2022-12-14 13:23:49,353 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 13:23:49,355 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 13:23:49,374 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 13:23:49,374 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 13:23:49,375 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 13:23:49,376 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 13:23:49,378 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 13:23:49,379 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 13:23:49,380 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 13:23:49,381 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 13:23:49,382 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 13:23:49,382 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 13:23:49,383 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 13:23:49,384 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 13:23:49,385 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 13:23:49,386 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 13:23:49,387 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 13:23:49,388 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 13:23:49,389 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 13:23:49,391 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 13:23:49,392 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 13:23:49,393 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 13:23:49,394 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 13:23:49,404 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 13:23:49,405 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 13:23:49,405 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 13:23:49,406 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 13:23:49,406 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 13:23:49,407 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 13:23:49,408 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 13:23:49,408 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 13:23:49,409 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 13:23:49,410 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 13:23:49,411 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 13:23:49,411 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 13:23:49,412 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 13:23:49,412 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 13:23:49,412 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 13:23:49,413 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 13:23:49,413 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 13:23:49,414 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21d2652c-586e-4a39-8def-2b8eed6fa23b/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-12-14 13:23:49,436 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 13:23:49,436 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 13:23:49,437 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 13:23:49,437 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 13:23:49,443 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 13:23:49,443 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 13:23:49,444 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 13:23:49,444 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 13:23:49,444 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 13:23:49,444 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-12-14 13:23:49,444 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 13:23:49,444 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 13:23:49,445 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-12-14 13:23:49,445 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-12-14 13:23:49,445 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 13:23:49,445 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-12-14 13:23:49,445 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-12-14 13:23:49,445 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-12-14 13:23:49,446 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 13:23:49,446 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 13:23:49,447 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 13:23:49,447 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 13:23:49,447 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 13:23:49,447 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 13:23:49,447 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 13:23:49,447 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 13:23:49,447 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 13:23:49,448 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 13:23:49,448 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 13:23:49,448 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 13:23:49,448 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 13:23:49,448 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-12-14 13:23:49,449 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 13:23:49,449 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 13:23:49,449 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-12-14 13:23:49,449 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 13:23:49,449 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 13:23:49,449 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 13:23:49,449 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21d2652c-586e-4a39-8def-2b8eed6fa23b/bin/utaipan-gh47qXpMRh/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21d2652c-586e-4a39-8def-2b8eed6fa23b/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 16d0a229e446ebb3f7632dc27a51dec3b716b02668fde06be2a0b6ed60024488 [2022-12-14 13:23:49,630 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 13:23:49,649 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 13:23:49,651 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 13:23:49,652 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 13:23:49,652 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 13:23:49,653 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21d2652c-586e-4a39-8def-2b8eed6fa23b/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cache_coherence_two.c [2022-12-14 13:23:52,209 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 13:23:52,458 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 13:23:52,458 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21d2652c-586e-4a39-8def-2b8eed6fa23b/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cache_coherence_two.c [2022-12-14 13:23:52,469 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21d2652c-586e-4a39-8def-2b8eed6fa23b/bin/utaipan-gh47qXpMRh/data/8e7960f8f/bd55474355974c71adeba266583e947c/FLAGaab941a0c [2022-12-14 13:23:52,769 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21d2652c-586e-4a39-8def-2b8eed6fa23b/bin/utaipan-gh47qXpMRh/data/8e7960f8f/bd55474355974c71adeba266583e947c [2022-12-14 13:23:52,771 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 13:23:52,774 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 13:23:52,776 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 13:23:52,776 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 13:23:52,782 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 13:23:52,783 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 01:23:52" (1/1) ... [2022-12-14 13:23:52,784 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3bb66d00 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:23:52, skipping insertion in model container [2022-12-14 13:23:52,784 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 01:23:52" (1/1) ... [2022-12-14 13:23:52,794 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 13:23:52,855 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 13:23:53,013 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_21d2652c-586e-4a39-8def-2b8eed6fa23b/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cache_coherence_two.c[1107,1120] [2022-12-14 13:23:53,218 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 13:23:53,222 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 13:23:53,230 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_21d2652c-586e-4a39-8def-2b8eed6fa23b/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cache_coherence_two.c[1107,1120] [2022-12-14 13:23:53,373 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 13:23:53,384 INFO L208 MainTranslator]: Completed translation [2022-12-14 13:23:53,384 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:23:53 WrapperNode [2022-12-14 13:23:53,384 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 13:23:53,385 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 13:23:53,385 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 13:23:53,385 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 13:23:53,390 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:23:53" (1/1) ... [2022-12-14 13:23:53,416 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:23:53" (1/1) ... [2022-12-14 13:23:53,485 INFO L138 Inliner]: procedures = 11, calls = 3, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 1958 [2022-12-14 13:23:53,485 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 13:23:53,485 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 13:23:53,485 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 13:23:53,486 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 13:23:53,493 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:23:53" (1/1) ... [2022-12-14 13:23:53,493 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:23:53" (1/1) ... [2022-12-14 13:23:53,502 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:23:53" (1/1) ... [2022-12-14 13:23:53,502 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:23:53" (1/1) ... [2022-12-14 13:23:53,527 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:23:53" (1/1) ... [2022-12-14 13:23:53,531 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:23:53" (1/1) ... [2022-12-14 13:23:53,538 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:23:53" (1/1) ... [2022-12-14 13:23:53,545 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:23:53" (1/1) ... [2022-12-14 13:23:53,558 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 13:23:53,558 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 13:23:53,558 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 13:23:53,558 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 13:23:53,559 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:23:53" (1/1) ... [2022-12-14 13:23:53,564 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 13:23:53,572 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21d2652c-586e-4a39-8def-2b8eed6fa23b/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 13:23:53,582 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21d2652c-586e-4a39-8def-2b8eed6fa23b/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 13:23:53,584 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21d2652c-586e-4a39-8def-2b8eed6fa23b/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 13:23:53,608 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 13:23:53,608 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 13:23:53,914 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 13:23:53,916 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 13:24:40,610 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 13:24:40,631 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 13:24:40,632 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-12-14 13:24:40,634 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 01:24:40 BoogieIcfgContainer [2022-12-14 13:24:40,634 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 13:24:40,635 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 13:24:40,635 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 13:24:40,638 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 13:24:40,638 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 01:23:52" (1/3) ... [2022-12-14 13:24:40,638 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5473fa3b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 01:24:40, skipping insertion in model container [2022-12-14 13:24:40,639 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:23:53" (2/3) ... [2022-12-14 13:24:40,639 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5473fa3b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 01:24:40, skipping insertion in model container [2022-12-14 13:24:40,639 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 01:24:40" (3/3) ... [2022-12-14 13:24:40,640 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.cache_coherence_two.c [2022-12-14 13:24:40,654 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 13:24:40,654 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-14 13:24:40,687 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 13:24:40,692 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@27695b2b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 13:24:40,692 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-12-14 13:24:40,695 INFO L276 IsEmpty]: Start isEmpty. Operand has 7 states, 5 states have (on average 1.6) internal successors, (8), 6 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 13:24:40,699 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-12-14 13:24:40,699 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 13:24:40,700 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-12-14 13:24:40,700 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 13:24:40,704 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 13:24:40,704 INFO L85 PathProgramCache]: Analyzing trace with hash 1827279, now seen corresponding path program 1 times [2022-12-14 13:24:40,711 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 13:24:40,711 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [366980176] [2022-12-14 13:24:40,711 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 13:24:40,712 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 13:24:42,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-14 13:24:42,164 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-14 13:24:43,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-14 13:24:43,945 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-12-14 13:24:43,947 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-12-14 13:24:43,947 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-12-14 13:24:43,949 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-14 13:24:43,952 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2022-12-14 13:24:43,955 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-14 13:24:43,982 WARN L321 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2022-12-14 13:24:43,997 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.12 01:24:43 BoogieIcfgContainer [2022-12-14 13:24:43,997 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-14 13:24:43,998 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-14 13:24:43,998 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-14 13:24:43,998 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-14 13:24:43,998 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 01:24:40" (3/4) ... [2022-12-14 13:24:44,001 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-12-14 13:24:44,001 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-14 13:24:44,003 INFO L158 Benchmark]: Toolchain (without parser) took 51229.06ms. Allocated memory was 125.8MB in the beginning and 1.1GB in the end (delta: 954.2MB). Free memory was 84.9MB in the beginning and 627.4MB in the end (delta: -542.5MB). Peak memory consumption was 414.0MB. Max. memory is 16.1GB. [2022-12-14 13:24:44,003 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 125.8MB. Free memory is still 93.3MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 13:24:44,003 INFO L158 Benchmark]: CACSL2BoogieTranslator took 608.72ms. Allocated memory was 125.8MB in the beginning and 167.8MB in the end (delta: 41.9MB). Free memory was 84.9MB in the beginning and 116.5MB in the end (delta: -31.6MB). Peak memory consumption was 63.1MB. Max. memory is 16.1GB. [2022-12-14 13:24:44,006 INFO L158 Benchmark]: Boogie Procedure Inliner took 100.16ms. Allocated memory is still 167.8MB. Free memory was 116.5MB in the beginning and 97.6MB in the end (delta: 18.8MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2022-12-14 13:24:44,006 INFO L158 Benchmark]: Boogie Preprocessor took 72.49ms. Allocated memory is still 167.8MB. Free memory was 97.6MB in the beginning and 89.2MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-12-14 13:24:44,007 INFO L158 Benchmark]: RCFGBuilder took 47075.49ms. Allocated memory was 167.8MB in the beginning and 1.1GB in the end (delta: 912.3MB). Free memory was 89.2MB in the beginning and 441.7MB in the end (delta: -352.5MB). Peak memory consumption was 629.9MB. Max. memory is 16.1GB. [2022-12-14 13:24:44,007 INFO L158 Benchmark]: TraceAbstraction took 3361.92ms. Allocated memory is still 1.1GB. Free memory was 440.7MB in the beginning and 628.4MB in the end (delta: -187.7MB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 13:24:44,008 INFO L158 Benchmark]: Witness Printer took 3.75ms. Allocated memory is still 1.1GB. Free memory was 628.4MB in the beginning and 627.4MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 13:24:44,010 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 125.8MB. Free memory is still 93.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 608.72ms. Allocated memory was 125.8MB in the beginning and 167.8MB in the end (delta: 41.9MB). Free memory was 84.9MB in the beginning and 116.5MB in the end (delta: -31.6MB). Peak memory consumption was 63.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 100.16ms. Allocated memory is still 167.8MB. Free memory was 116.5MB in the beginning and 97.6MB in the end (delta: 18.8MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Preprocessor took 72.49ms. Allocated memory is still 167.8MB. Free memory was 97.6MB in the beginning and 89.2MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * RCFGBuilder took 47075.49ms. Allocated memory was 167.8MB in the beginning and 1.1GB in the end (delta: 912.3MB). Free memory was 89.2MB in the beginning and 441.7MB in the end (delta: -352.5MB). Peak memory consumption was 629.9MB. Max. memory is 16.1GB. * TraceAbstraction took 3361.92ms. Allocated memory is still 1.1GB. Free memory was 440.7MB in the beginning and 628.4MB in the end (delta: -187.7MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 3.75ms. Allocated memory is still 1.1GB. Free memory was 628.4MB in the beginning and 627.4MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. 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 170, overapproximation of bitwiseOr at line 188, overapproximation of bitwiseAnd at line 164. 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 - 32); [L29] const SORT_3 msb_SORT_3 = (SORT_3)1 << (32 - 1); [L31] const SORT_6 mask_SORT_6 = (SORT_6)-1 >> (sizeof(SORT_6) * 8 - 2); [L32] const SORT_6 msb_SORT_6 = (SORT_6)1 << (2 - 1); [L34] const SORT_38 mask_SORT_38 = (SORT_38)-1 >> (sizeof(SORT_38) * 8 - 31); [L35] const SORT_38 msb_SORT_38 = (SORT_38)1 << (31 - 1); [L37] const SORT_45 mask_SORT_45 = (SORT_45)-1 >> (sizeof(SORT_45) * 8 - 3); [L38] const SORT_45 msb_SORT_45 = (SORT_45)1 << (3 - 1); [L40] const SORT_3 var_4 = 0; [L41] const SORT_3 var_5 = 1; [L42] const SORT_6 var_7 = 2; [L43] const SORT_6 var_10 = 1; [L44] const SORT_1 var_32 = 1; [L45] const SORT_1 var_33 = 0; [L46] const SORT_38 var_39 = 0; [L47] const SORT_6 var_41 = 0; [L48] const SORT_45 var_46 = 0; [L49] const SORT_45 var_50 = 1; [L50] const SORT_45 var_56 = 4; [L51] const SORT_45 var_58 = 5; [L52] const SORT_45 var_76 = 2; [L53] const SORT_45 var_86 = 3; [L55] SORT_1 input_2; [L56] SORT_45 input_451; [L57] SORT_45 input_572; [L59] SORT_6 state_8 = __VERIFIER_nondet_uchar() & mask_SORT_6; [L60] SORT_6 state_17 = __VERIFIER_nondet_uchar() & mask_SORT_6; [L61] SORT_1 state_34 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L62] SORT_6 state_42 = __VERIFIER_nondet_uchar() & mask_SORT_6; [L63] SORT_45 state_47 = __VERIFIER_nondet_uchar() & mask_SORT_45; [L64] SORT_1 state_72 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L65] SORT_6 state_98 = __VERIFIER_nondet_uchar() & mask_SORT_6; [L66] SORT_1 state_129 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L67] SORT_1 state_131 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L68] SORT_1 state_141 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L69] SORT_1 state_143 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L70] SORT_1 state_145 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L71] SORT_1 state_147 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L72] SORT_45 state_149 = __VERIFIER_nondet_uchar() & mask_SORT_45; [L73] SORT_1 state_154 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L74] SORT_1 state_168 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L75] SORT_45 state_170 = __VERIFIER_nondet_uchar() & mask_SORT_45; [L76] SORT_1 state_172 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L77] SORT_1 state_174 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L78] SORT_1 state_176 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L79] SORT_1 state_178 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L80] SORT_1 state_180 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L81] SORT_1 state_182 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L82] SORT_45 state_184 = __VERIFIER_nondet_uchar() & mask_SORT_45; [L83] SORT_1 state_189 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L84] SORT_1 state_203 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L85] SORT_45 state_205 = __VERIFIER_nondet_uchar() & mask_SORT_45; [L86] SORT_1 state_207 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L87] SORT_1 state_209 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L89] SORT_6 init_9_arg_1 = var_7; [L90] state_8 = init_9_arg_1 [L91] SORT_6 init_18_arg_1 = var_7; [L92] state_17 = init_18_arg_1 [L93] SORT_1 init_35_arg_1 = var_33; [L94] state_34 = init_35_arg_1 [L95] SORT_6 init_43_arg_1 = var_41; [L96] state_42 = init_43_arg_1 [L97] SORT_45 init_48_arg_1 = var_46; [L98] state_47 = init_48_arg_1 [L99] SORT_1 init_73_arg_1 = var_33; [L100] state_72 = init_73_arg_1 [L101] SORT_6 init_99_arg_1 = var_41; [L102] state_98 = init_99_arg_1 [L103] SORT_1 init_130_arg_1 = var_33; [L104] state_129 = init_130_arg_1 [L105] SORT_1 init_132_arg_1 = var_33; [L106] state_131 = init_132_arg_1 [L107] SORT_1 init_142_arg_1 = var_33; [L108] state_141 = init_142_arg_1 [L109] SORT_1 init_144_arg_1 = var_33; [L110] state_143 = init_144_arg_1 [L111] SORT_1 init_146_arg_1 = var_33; [L112] state_145 = init_146_arg_1 [L113] SORT_1 init_148_arg_1 = var_32; [L114] state_147 = init_148_arg_1 [L115] SORT_45 init_150_arg_1 = var_58; [L116] state_149 = init_150_arg_1 [L117] SORT_1 init_155_arg_1 = var_32; [L118] state_154 = init_155_arg_1 [L119] SORT_1 init_169_arg_1 = var_32; [L120] state_168 = init_169_arg_1 [L121] SORT_45 init_171_arg_1 = var_76; [L122] state_170 = init_171_arg_1 [L123] SORT_1 init_173_arg_1 = var_33; [L124] state_172 = init_173_arg_1 [L125] SORT_1 init_175_arg_1 = var_33; [L126] state_174 = init_175_arg_1 [L127] SORT_1 init_177_arg_1 = var_33; [L128] state_176 = init_177_arg_1 [L129] SORT_1 init_179_arg_1 = var_33; [L130] state_178 = init_179_arg_1 [L131] SORT_1 init_181_arg_1 = var_33; [L132] state_180 = init_181_arg_1 [L133] SORT_1 init_183_arg_1 = var_32; [L134] state_182 = init_183_arg_1 [L135] SORT_45 init_185_arg_1 = var_58; [L136] state_184 = init_185_arg_1 [L137] SORT_1 init_190_arg_1 = var_32; [L138] state_189 = init_190_arg_1 [L139] SORT_1 init_204_arg_1 = var_32; [L140] state_203 = init_204_arg_1 [L141] SORT_45 init_206_arg_1 = var_76; [L142] state_205 = init_206_arg_1 [L143] SORT_1 init_208_arg_1 = var_33; [L144] state_207 = init_208_arg_1 [L145] SORT_1 init_210_arg_1 = var_33; [L146] state_209 = init_210_arg_1 VAL [init_130_arg_1=0, init_132_arg_1=0, init_142_arg_1=0, init_144_arg_1=0, init_146_arg_1=0, init_148_arg_1=1, init_150_arg_1=5, init_155_arg_1=1, init_169_arg_1=1, init_171_arg_1=2, init_173_arg_1=0, init_175_arg_1=0, init_177_arg_1=0, init_179_arg_1=0, init_181_arg_1=0, init_183_arg_1=1, init_185_arg_1=5, init_18_arg_1=2, init_190_arg_1=1, init_204_arg_1=1, init_206_arg_1=2, init_208_arg_1=0, init_210_arg_1=0, init_35_arg_1=0, init_43_arg_1=0, init_48_arg_1=0, init_73_arg_1=0, init_99_arg_1=0, init_9_arg_1=2, mask_SORT_1=1, mask_SORT_3=4294967295, mask_SORT_38=4294967295, mask_SORT_45=7, mask_SORT_6=3, msb_SORT_1=1, msb_SORT_3=2147483648, msb_SORT_38=1073741824, msb_SORT_45=4, msb_SORT_6=2, state_129=0, state_131=0, state_141=0, state_143=0, state_145=0, state_147=1, state_149=5, state_154=1, state_168=1, state_17=2, state_170=2, state_172=0, state_174=0, state_176=0, state_178=0, state_180=0, state_182=1, state_184=5, state_189=1, state_203=1, state_205=2, state_207=0, state_209=0, state_34=0, state_42=0, state_47=0, state_72=0, state_8=2, state_98=0, var_10=1, var_32=1, var_33=0, var_39=0, var_4=0, var_41=0, var_46=0, var_5=1, var_50=1, var_56=4, var_58=5, var_7=2, var_76=2, var_86=3] [L149] input_2 = __VERIFIER_nondet_uchar() [L150] input_451 = __VERIFIER_nondet_uchar() [L151] input_572 = __VERIFIER_nondet_uchar() [L154] SORT_6 var_11_arg_0 = state_8; [L155] SORT_6 var_11_arg_1 = var_10; [L156] SORT_1 var_11 = var_11_arg_0 == var_11_arg_1; [L157] SORT_1 var_12_arg_0 = var_11; [L158] SORT_3 var_12_arg_1 = var_5; [L159] SORT_3 var_12_arg_2 = var_4; [L160] SORT_3 var_12 = var_12_arg_0 ? var_12_arg_1 : var_12_arg_2; [L161] SORT_3 var_13_arg_0 = var_12; [L162] SORT_1 var_13 = var_13_arg_0 >> 0; [L163] SORT_1 var_14_arg_0 = var_13; [L164] var_14_arg_0 = var_14_arg_0 & mask_SORT_1 [L165] SORT_3 var_14 = var_14_arg_0; [L166] SORT_3 var_15_arg_0 = var_14; [L167] SORT_3 var_15_arg_1 = var_5; [L168] SORT_1 var_15 = var_15_arg_0 == var_15_arg_1; [L169] SORT_1 var_16_arg_0 = var_15; [L170] SORT_1 var_16 = ~var_16_arg_0; [L171] SORT_6 var_19_arg_0 = state_17; [L172] SORT_6 var_19_arg_1 = var_10; [L173] SORT_1 var_19 = var_19_arg_0 == var_19_arg_1; [L174] SORT_1 var_20_arg_0 = var_19; [L175] SORT_3 var_20_arg_1 = var_5; [L176] SORT_3 var_20_arg_2 = var_4; [L177] SORT_3 var_20 = var_20_arg_0 ? var_20_arg_1 : var_20_arg_2; [L178] SORT_3 var_21_arg_0 = var_20; [L179] SORT_1 var_21 = var_21_arg_0 >> 0; [L180] SORT_1 var_22_arg_0 = var_21; [L181] var_22_arg_0 = var_22_arg_0 & mask_SORT_1 [L182] SORT_3 var_22 = var_22_arg_0; [L183] SORT_3 var_23_arg_0 = var_22; [L184] SORT_3 var_23_arg_1 = var_5; [L185] SORT_1 var_23 = var_23_arg_0 == var_23_arg_1; [L186] SORT_1 var_24_arg_0 = var_16; [L187] SORT_1 var_24_arg_1 = var_23; [L188] SORT_1 var_24 = var_24_arg_0 | var_24_arg_1; [L189] SORT_1 var_25_arg_0 = var_21; [L190] var_25_arg_0 = var_25_arg_0 & mask_SORT_1 [L191] SORT_3 var_25 = var_25_arg_0; [L192] SORT_3 var_26_arg_0 = var_25; [L193] SORT_3 var_26_arg_1 = var_5; [L194] SORT_1 var_26 = var_26_arg_0 == var_26_arg_1; [L195] SORT_1 var_27_arg_0 = var_26; [L196] SORT_1 var_27 = ~var_27_arg_0; [L197] SORT_1 var_28_arg_0 = var_13; [L198] var_28_arg_0 = var_28_arg_0 & mask_SORT_1 [L199] SORT_3 var_28 = var_28_arg_0; [L200] SORT_3 var_29_arg_0 = var_28; [L201] SORT_3 var_29_arg_1 = var_5; [L202] SORT_1 var_29 = var_29_arg_0 == var_29_arg_1; [L203] SORT_1 var_30_arg_0 = var_27; [L204] SORT_1 var_30_arg_1 = var_29; [L205] SORT_1 var_30 = var_30_arg_0 | var_30_arg_1; [L206] SORT_1 var_31_arg_0 = var_24; [L207] SORT_1 var_31_arg_1 = var_30; [L208] SORT_1 var_31 = var_31_arg_0 & var_31_arg_1; [L209] SORT_45 var_64_arg_0 = state_47; [L210] SORT_45 var_64_arg_1 = var_50; [L211] SORT_1 var_64 = var_64_arg_0 == var_64_arg_1; [L212] SORT_6 var_65_arg_0 = state_42; [L213] SORT_6 var_65_arg_1 = var_10; [L214] SORT_1 var_65 = var_65_arg_0 == var_65_arg_1; [L215] SORT_1 var_66_arg_0 = var_64; [L216] SORT_1 var_66_arg_1 = var_65; [L217] SORT_1 var_66 = var_66_arg_0 | var_66_arg_1; [L218] var_66 = var_66 & mask_SORT_1 [L219] SORT_6 var_44_arg_0 = state_42; [L220] SORT_6 var_44_arg_1 = var_41; [L221] SORT_1 var_44 = var_44_arg_0 == var_44_arg_1; [L222] SORT_45 var_49_arg_0 = state_47; [L223] SORT_45 var_49_arg_1 = var_46; [L224] SORT_1 var_49 = var_49_arg_0 == var_49_arg_1; [L225] SORT_45 var_51_arg_0 = state_47; [L226] SORT_45 var_51_arg_1 = var_50; [L227] SORT_1 var_51 = var_51_arg_0 == var_51_arg_1; [L228] SORT_1 var_52_arg_0 = var_49; [L229] SORT_1 var_52_arg_1 = var_51; [L230] SORT_1 var_52 = var_52_arg_0 | var_52_arg_1; [L231] SORT_1 var_53_arg_0 = var_52; [L232] SORT_1 var_53 = ~var_53_arg_0; [L233] SORT_1 var_54_arg_0 = var_44; [L234] SORT_1 var_54_arg_1 = var_53; [L235] SORT_1 var_54 = var_54_arg_0 & var_54_arg_1; [L236] SORT_6 var_55_arg_0 = state_42; [L237] SORT_6 var_55_arg_1 = var_10; [L238] SORT_1 var_55 = var_55_arg_0 == var_55_arg_1; [L239] SORT_45 var_57_arg_0 = state_47; [L240] SORT_45 var_57_arg_1 = var_56; [L241] SORT_1 var_57 = var_57_arg_0 == var_57_arg_1; [L242] SORT_45 var_59_arg_0 = state_47; [L243] SORT_45 var_59_arg_1 = var_58; [L244] SORT_1 var_59 = var_59_arg_0 == var_59_arg_1; [L245] SORT_1 var_60_arg_0 = var_57; [L246] SORT_1 var_60_arg_1 = var_59; [L247] SORT_1 var_60 = var_60_arg_0 | var_60_arg_1; [L248] SORT_1 var_61_arg_0 = var_55; [L249] SORT_1 var_61_arg_1 = var_60; [L250] SORT_1 var_61 = var_61_arg_0 & var_61_arg_1; [L251] SORT_1 var_62_arg_0 = var_54; [L252] SORT_1 var_62_arg_1 = var_61; [L253] SORT_1 var_62 = var_62_arg_0 | var_62_arg_1; [L254] var_62 = var_62 & mask_SORT_1 [L255] SORT_1 var_36_arg_0 = state_34; [L256] SORT_1 var_36 = ~var_36_arg_0; [L257] SORT_1 var_37_arg_0 = var_32; [L258] SORT_1 var_37_arg_1 = var_36; [L259] SORT_1 var_37 = var_37_arg_0 & var_37_arg_1; [L260] var_37 = var_37 & mask_SORT_1 [L261] SORT_38 var_40_arg_0 = var_39; [L262] SORT_1 var_40_arg_1 = var_37; [L263] SORT_3 var_40 = ((SORT_3)var_40_arg_0 << 1) | var_40_arg_1; [L264] SORT_1 var_63_arg_0 = var_62; [L265] SORT_3 var_63_arg_1 = var_40; [L266] SORT_3 var_63_arg_2 = var_4; [L267] SORT_3 var_63 = var_63_arg_0 ? var_63_arg_1 : var_63_arg_2; [L268] SORT_1 var_67_arg_0 = var_66; [L269] SORT_3 var_67_arg_1 = var_5; [L270] SORT_3 var_67_arg_2 = var_63; [L271] SORT_3 var_67 = var_67_arg_0 ? var_67_arg_1 : var_67_arg_2; [L272] SORT_3 var_68_arg_0 = var_67; [L273] SORT_1 var_68 = var_68_arg_0 >> 0; [L274] var_68 = var_68 & mask_SORT_1 [L275] SORT_1 var_69_arg_0 = var_13; [L276] SORT_1 var_69_arg_1 = var_68; [L277] SORT_1 var_69 = var_69_arg_0 & var_69_arg_1; [L278] SORT_1 var_70_arg_0 = var_69; [L279] SORT_1 var_70_arg_1 = var_21; [L280] SORT_1 var_70 = var_70_arg_0 & var_70_arg_1; [L281] SORT_1 var_71_arg_0 = var_70; [L282] SORT_1 var_71 = ~var_71_arg_0; [L283] SORT_45 var_113_arg_0 = state_47; [L284] SORT_45 var_113_arg_1 = var_50; [L285] SORT_1 var_113 = var_113_arg_0 == var_113_arg_1; [L286] SORT_6 var_114_arg_0 = state_98; [L287] SORT_6 var_114_arg_1 = var_10; [L288] SORT_1 var_114 = var_114_arg_0 == var_114_arg_1; [L289] SORT_1 var_115_arg_0 = var_113; [L290] SORT_1 var_115_arg_1 = var_114; [L291] SORT_1 var_115 = var_115_arg_0 | var_115_arg_1; [L292] var_115 = var_115 & mask_SORT_1 [L293] SORT_6 var_100_arg_0 = state_98; [L294] SORT_6 var_100_arg_1 = var_41; [L295] SORT_1 var_100 = var_100_arg_0 == var_100_arg_1; [L296] SORT_45 var_101_arg_0 = state_47; [L297] SORT_45 var_101_arg_1 = var_46; [L298] SORT_1 var_101 = var_101_arg_0 == var_101_arg_1; [L299] SORT_45 var_102_arg_0 = state_47; [L300] SORT_45 var_102_arg_1 = var_50; [L301] SORT_1 var_102 = var_102_arg_0 == var_102_arg_1; [L302] SORT_1 var_103_arg_0 = var_101; [L303] SORT_1 var_103_arg_1 = var_102; [L304] SORT_1 var_103 = var_103_arg_0 | var_103_arg_1; [L305] SORT_1 var_104_arg_0 = var_103; [L306] SORT_1 var_104 = ~var_104_arg_0; [L307] SORT_1 var_105_arg_0 = var_100; [L308] SORT_1 var_105_arg_1 = var_104; [L309] SORT_1 var_105 = var_105_arg_0 & var_105_arg_1; [L310] SORT_6 var_106_arg_0 = state_98; [L311] SORT_6 var_106_arg_1 = var_10; [L312] SORT_1 var_106 = var_106_arg_0 == var_106_arg_1; [L313] SORT_45 var_107_arg_0 = state_47; [L314] SORT_45 var_107_arg_1 = var_56; [L315] SORT_1 var_107 = var_107_arg_0 == var_107_arg_1; [L316] SORT_45 var_108_arg_0 = state_47; [L317] SORT_45 var_108_arg_1 = var_58; [L318] SORT_1 var_108 = var_108_arg_0 == var_108_arg_1; [L319] SORT_1 var_109_arg_0 = var_107; [L320] SORT_1 var_109_arg_1 = var_108; [L321] SORT_1 var_109 = var_109_arg_0 | var_109_arg_1; [L322] SORT_1 var_110_arg_0 = var_106; [L323] SORT_1 var_110_arg_1 = var_109; [L324] SORT_1 var_110 = var_110_arg_0 & var_110_arg_1; [L325] SORT_1 var_111_arg_0 = var_105; [L326] SORT_1 var_111_arg_1 = var_110; [L327] SORT_1 var_111 = var_111_arg_0 | var_111_arg_1; [L328] var_111 = var_111 & mask_SORT_1 [L329] SORT_6 var_92_arg_0 = state_42; [L330] SORT_6 var_92_arg_1 = var_7; [L331] SORT_1 var_92 = var_92_arg_0 == var_92_arg_1; [L332] SORT_1 var_93_arg_0 = var_33; [L333] SORT_1 var_93_arg_1 = var_92; [L334] SORT_1 var_93 = var_93_arg_0 | var_93_arg_1; [L335] var_93 = var_93 & mask_SORT_1 [L336] SORT_45 var_77_arg_0 = state_47; [L337] SORT_45 var_77_arg_1 = var_76; [L338] SORT_1 var_77 = var_77_arg_0 == var_77_arg_1; [L339] SORT_45 var_78_arg_0 = state_47; [L340] SORT_45 var_78_arg_1 = var_56; [L341] SORT_1 var_78 = var_78_arg_0 == var_78_arg_1; [L342] SORT_1 var_79_arg_0 = var_77; [L343] SORT_1 var_79_arg_1 = var_78; [L344] SORT_1 var_79 = var_79_arg_0 | var_79_arg_1; [L345] SORT_45 var_80_arg_0 = state_47; [L346] SORT_45 var_80_arg_1 = var_58; [L347] SORT_1 var_80 = var_80_arg_0 == var_80_arg_1; [L348] SORT_1 var_81_arg_0 = var_79; [L349] SORT_1 var_81_arg_1 = var_80; [L350] SORT_1 var_81 = var_81_arg_0 | var_81_arg_1; [L351] SORT_45 var_82_arg_0 = state_47; [L352] SORT_45 var_82_arg_1 = var_50; [L353] SORT_1 var_82 = var_82_arg_0 == var_82_arg_1; [L354] SORT_6 var_83_arg_0 = state_42; [L355] SORT_6 var_83_arg_1 = var_10; [L356] SORT_1 var_83 = var_83_arg_0 == var_83_arg_1; [L357] SORT_1 var_84_arg_0 = var_82; [L358] SORT_1 var_84_arg_1 = var_83; [L359] SORT_1 var_84 = var_84_arg_0 & var_84_arg_1; [L360] SORT_1 var_85_arg_0 = var_81; [L361] SORT_1 var_85_arg_1 = var_84; [L362] SORT_1 var_85 = var_85_arg_0 | var_85_arg_1; [L363] SORT_45 var_87_arg_0 = state_47; [L364] SORT_45 var_87_arg_1 = var_86; [L365] SORT_1 var_87 = var_87_arg_0 == var_87_arg_1; [L366] SORT_6 var_88_arg_0 = state_42; [L367] SORT_6 var_88_arg_1 = var_41; [L368] SORT_1 var_88 = var_88_arg_0 == var_88_arg_1; [L369] SORT_1 var_89_arg_0 = var_87; [L370] SORT_1 var_89_arg_1 = var_88; [L371] SORT_1 var_89 = var_89_arg_0 & var_89_arg_1; [L372] SORT_1 var_90_arg_0 = var_85; [L373] SORT_1 var_90_arg_1 = var_89; [L374] SORT_1 var_90 = var_90_arg_0 | var_90_arg_1; [L375] var_90 = var_90 & mask_SORT_1 [L376] SORT_1 var_91_arg_0 = var_90; [L377] SORT_3 var_91_arg_1 = var_5; [L378] SORT_3 var_91_arg_2 = var_4; [L379] SORT_3 var_91 = var_91_arg_0 ? var_91_arg_1 : var_91_arg_2; [L380] SORT_1 var_94_arg_0 = var_93; [L381] SORT_3 var_94_arg_1 = var_4; [L382] SORT_3 var_94_arg_2 = var_91; [L383] SORT_3 var_94 = var_94_arg_0 ? var_94_arg_1 : var_94_arg_2; [L384] SORT_3 var_95_arg_0 = var_94; [L385] SORT_1 var_95 = var_95_arg_0 >> 0; [L386] var_95 = var_95 & mask_SORT_1 [L387] SORT_1 var_74_arg_0 = state_72; [L388] SORT_1 var_74 = ~var_74_arg_0; [L389] SORT_1 var_75_arg_0 = var_32; [L390] SORT_1 var_75_arg_1 = var_74; [L391] SORT_1 var_75 = var_75_arg_0 & var_75_arg_1; [L392] SORT_1 var_96_arg_0 = var_95; [L393] SORT_1 var_96_arg_1 = var_37; [L394] SORT_1 var_96_arg_2 = var_75; [L395] SORT_1 var_96 = var_96_arg_0 ? var_96_arg_1 : var_96_arg_2; [L396] var_96 = var_96 & mask_SORT_1 [L397] SORT_38 var_97_arg_0 = var_39; [L398] SORT_1 var_97_arg_1 = var_96; [L399] SORT_3 var_97 = ((SORT_3)var_97_arg_0 << 1) | var_97_arg_1; [L400] SORT_1 var_112_arg_0 = var_111; [L401] SORT_3 var_112_arg_1 = var_97; [L402] SORT_3 var_112_arg_2 = var_4; [L403] SORT_3 var_112 = var_112_arg_0 ? var_112_arg_1 : var_112_arg_2; [L404] SORT_1 var_116_arg_0 = var_115; [L405] SORT_3 var_116_arg_1 = var_5; [L406] SORT_3 var_116_arg_2 = var_112; [L407] SORT_3 var_116 = var_116_arg_0 ? var_116_arg_1 : var_116_arg_2; [L408] SORT_3 var_117_arg_0 = var_116; [L409] SORT_1 var_117 = var_117_arg_0 >> 0; [L410] var_117 = var_117 & mask_SORT_1 [L411] SORT_1 var_118_arg_0 = var_71; [L412] SORT_1 var_118_arg_1 = var_117; [L413] SORT_1 var_118 = var_118_arg_0 | var_118_arg_1; [L414] SORT_1 var_119_arg_0 = var_31; [L415] SORT_1 var_119_arg_1 = var_118; [L416] SORT_1 var_119 = var_119_arg_0 & var_119_arg_1; [L417] SORT_1 var_122_arg_0 = var_119; [L418] SORT_1 var_122 = ~var_122_arg_0; [L419] SORT_1 var_123_arg_0 = var_32; [L420] SORT_1 var_123_arg_1 = var_122; [L421] SORT_1 var_123 = var_123_arg_0 & var_123_arg_1; [L422] var_123 = var_123 & mask_SORT_1 [L423] SORT_1 bad_124_arg_0 = var_123; [L424] CALL __VERIFIER_assert(!(bad_124_arg_0)) [L20] COND TRUE !(cond) VAL [\old(cond)=0, cond=0] [L20] reach_error() VAL [\old(cond)=0, cond=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 7 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 3.3s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=7occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 1.4s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 4 NumberOfCodeBlocks, 4 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-12-14 13:24:44,033 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21d2652c-586e-4a39-8def-2b8eed6fa23b/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21d2652c-586e-4a39-8def-2b8eed6fa23b/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21d2652c-586e-4a39-8def-2b8eed6fa23b/bin/utaipan-gh47qXpMRh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21d2652c-586e-4a39-8def-2b8eed6fa23b/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21d2652c-586e-4a39-8def-2b8eed6fa23b/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cache_coherence_two.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21d2652c-586e-4a39-8def-2b8eed6fa23b/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-64bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21d2652c-586e-4a39-8def-2b8eed6fa23b/bin/utaipan-gh47qXpMRh --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 16d0a229e446ebb3f7632dc27a51dec3b716b02668fde06be2a0b6ed60024488 --- 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-2329fc7 [2022-12-14 13:24:45,563 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 13:24:45,565 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 13:24:45,584 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 13:24:45,584 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 13:24:45,586 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 13:24:45,587 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 13:24:45,588 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 13:24:45,590 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 13:24:45,591 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 13:24:45,592 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 13:24:45,593 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 13:24:45,593 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 13:24:45,594 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 13:24:45,595 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 13:24:45,596 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 13:24:45,597 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 13:24:45,598 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 13:24:45,599 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 13:24:45,601 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 13:24:45,602 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 13:24:45,604 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 13:24:45,605 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 13:24:45,605 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 13:24:45,609 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 13:24:45,609 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 13:24:45,609 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 13:24:45,610 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 13:24:45,611 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 13:24:45,612 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 13:24:45,612 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 13:24:45,613 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 13:24:45,613 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 13:24:45,614 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 13:24:45,621 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 13:24:45,621 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 13:24:45,622 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 13:24:45,622 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 13:24:45,623 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 13:24:45,623 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 13:24:45,624 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 13:24:45,625 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21d2652c-586e-4a39-8def-2b8eed6fa23b/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2022-12-14 13:24:45,649 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 13:24:45,650 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 13:24:45,650 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 13:24:45,650 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 13:24:45,651 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 13:24:45,651 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 13:24:45,651 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 13:24:45,652 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 13:24:45,652 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 13:24:45,652 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 13:24:45,652 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 13:24:45,652 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 13:24:45,653 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 13:24:45,653 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 13:24:45,653 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 13:24:45,654 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 13:24:45,654 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 13:24:45,654 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-12-14 13:24:45,654 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-12-14 13:24:45,654 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-12-14 13:24:45,654 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 13:24:45,655 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 13:24:45,655 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 13:24:45,655 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 13:24:45,655 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-14 13:24:45,655 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 13:24:45,656 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 13:24:45,656 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 13:24:45,656 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 13:24:45,656 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 13:24:45,656 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2022-12-14 13:24:45,657 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-12-14 13:24:45,657 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 13:24:45,657 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 13:24:45,657 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-14 13:24:45,657 INFO L138 SettingsManager]: * Logic for external solver=AUFBV WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21d2652c-586e-4a39-8def-2b8eed6fa23b/bin/utaipan-gh47qXpMRh/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21d2652c-586e-4a39-8def-2b8eed6fa23b/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 16d0a229e446ebb3f7632dc27a51dec3b716b02668fde06be2a0b6ed60024488 [2022-12-14 13:24:45,900 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 13:24:45,915 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 13:24:45,917 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 13:24:45,918 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 13:24:45,918 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 13:24:45,919 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21d2652c-586e-4a39-8def-2b8eed6fa23b/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cache_coherence_two.c [2022-12-14 13:24:48,481 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 13:24:48,699 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 13:24:48,700 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21d2652c-586e-4a39-8def-2b8eed6fa23b/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cache_coherence_two.c [2022-12-14 13:24:48,712 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21d2652c-586e-4a39-8def-2b8eed6fa23b/bin/utaipan-gh47qXpMRh/data/e803f82cc/5d57321da831424bba234a6459eb0f4e/FLAG8f6420560 [2022-12-14 13:24:49,058 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21d2652c-586e-4a39-8def-2b8eed6fa23b/bin/utaipan-gh47qXpMRh/data/e803f82cc/5d57321da831424bba234a6459eb0f4e [2022-12-14 13:24:49,062 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 13:24:49,064 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 13:24:49,065 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 13:24:49,065 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 13:24:49,070 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 13:24:49,070 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 01:24:49" (1/1) ... [2022-12-14 13:24:49,071 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@67b1d1ee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:24:49, skipping insertion in model container [2022-12-14 13:24:49,072 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 01:24:49" (1/1) ... [2022-12-14 13:24:49,078 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 13:24:49,122 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 13:24:49,265 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_21d2652c-586e-4a39-8def-2b8eed6fa23b/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cache_coherence_two.c[1107,1120] [2022-12-14 13:24:49,484 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 13:24:49,489 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 13:24:49,498 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_21d2652c-586e-4a39-8def-2b8eed6fa23b/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cache_coherence_two.c[1107,1120] [2022-12-14 13:24:49,586 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 13:24:49,604 INFO L208 MainTranslator]: Completed translation [2022-12-14 13:24:49,605 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:24:49 WrapperNode [2022-12-14 13:24:49,605 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 13:24:49,605 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 13:24:49,606 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 13:24:49,606 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 13:24:49,611 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:24:49" (1/1) ... [2022-12-14 13:24:49,635 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:24:49" (1/1) ... [2022-12-14 13:24:49,690 INFO L138 Inliner]: procedures = 11, calls = 3, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 1958 [2022-12-14 13:24:49,690 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 13:24:49,690 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 13:24:49,690 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 13:24:49,691 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 13:24:49,698 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:24:49" (1/1) ... [2022-12-14 13:24:49,698 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:24:49" (1/1) ... [2022-12-14 13:24:49,708 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:24:49" (1/1) ... [2022-12-14 13:24:49,708 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:24:49" (1/1) ... [2022-12-14 13:24:49,736 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:24:49" (1/1) ... [2022-12-14 13:24:49,740 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:24:49" (1/1) ... [2022-12-14 13:24:49,745 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:24:49" (1/1) ... [2022-12-14 13:24:49,749 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:24:49" (1/1) ... [2022-12-14 13:24:49,759 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 13:24:49,760 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 13:24:49,760 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 13:24:49,760 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 13:24:49,761 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:24:49" (1/1) ... [2022-12-14 13:24:49,766 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 13:24:49,775 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21d2652c-586e-4a39-8def-2b8eed6fa23b/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 13:24:49,785 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21d2652c-586e-4a39-8def-2b8eed6fa23b/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 13:24:49,788 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21d2652c-586e-4a39-8def-2b8eed6fa23b/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 13:24:49,817 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 13:24:49,817 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 13:24:50,142 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 13:24:50,144 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 13:24:51,900 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 13:24:51,905 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 13:24:51,905 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-12-14 13:24:51,907 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 01:24:51 BoogieIcfgContainer [2022-12-14 13:24:51,907 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 13:24:51,909 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 13:24:51,909 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 13:24:51,912 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 13:24:51,912 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 01:24:49" (1/3) ... [2022-12-14 13:24:51,912 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@140ec4f3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 01:24:51, skipping insertion in model container [2022-12-14 13:24:51,912 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:24:49" (2/3) ... [2022-12-14 13:24:51,913 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@140ec4f3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 01:24:51, skipping insertion in model container [2022-12-14 13:24:51,913 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 01:24:51" (3/3) ... [2022-12-14 13:24:51,914 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.cache_coherence_two.c [2022-12-14 13:24:51,928 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 13:24:51,928 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-14 13:24:51,963 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 13:24:51,968 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@20996d61, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 13:24:51,968 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-12-14 13:24:51,971 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) [2022-12-14 13:24:51,975 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-12-14 13:24:51,975 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 13:24:51,976 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-12-14 13:24:51,976 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 13:24:51,980 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 13:24:51,980 INFO L85 PathProgramCache]: Analyzing trace with hash 28698761, now seen corresponding path program 1 times [2022-12-14 13:24:51,991 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 13:24:51,991 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1683472236] [2022-12-14 13:24:51,991 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 13:24:51,991 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 [2022-12-14 13:24:51,992 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21d2652c-586e-4a39-8def-2b8eed6fa23b/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 13:24:51,993 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21d2652c-586e-4a39-8def-2b8eed6fa23b/bin/utaipan-gh47qXpMRh/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) [2022-12-14 13:24:51,994 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21d2652c-586e-4a39-8def-2b8eed6fa23b/bin/utaipan-gh47qXpMRh/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 [2022-12-14 13:24:52,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 13:24:52,330 INFO L263 TraceCheckSpWp]: Trace formula consists of 346 conjuncts, 63 conjunts are in the unsatisfiable core [2022-12-14 13:24:52,344 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 13:24:52,669 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 13:24:52,669 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 13:24:52,670 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-12-14 13:24:52,670 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1683472236] [2022-12-14 13:24:52,670 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1683472236] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 13:24:52,670 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 13:24:52,671 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 13:24:52,672 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1870957111] [2022-12-14 13:24:52,672 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 13:24:52,675 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 13:24:52,675 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-12-14 13:24:52,695 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 13:24:52,696 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 13:24:52,697 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) [2022-12-14 13:24:52,927 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 13:24:52,927 INFO L93 Difference]: Finished difference Result 20 states and 30 transitions. [2022-12-14 13:24:52,928 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-14 13:24:52,929 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 [2022-12-14 13:24:52,930 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 13:24:52,935 INFO L225 Difference]: With dead ends: 20 [2022-12-14 13:24:52,935 INFO L226 Difference]: Without dead ends: 11 [2022-12-14 13:24:52,937 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 [2022-12-14 13:24:52,939 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 4 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s 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, 0.2s IncrementalHoareTripleChecker+Time [2022-12-14 13:24:52,940 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 13 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-12-14 13:24:52,952 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2022-12-14 13:24:52,960 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 9. [2022-12-14 13:24:52,962 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) [2022-12-14 13:24:52,962 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2022-12-14 13:24:52,963 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 5 [2022-12-14 13:24:52,963 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 13:24:52,964 INFO L495 AbstractCegarLoop]: Abstraction has 9 states and 9 transitions. [2022-12-14 13:24:52,964 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) [2022-12-14 13:24:52,964 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2022-12-14 13:24:52,964 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-12-14 13:24:52,964 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 13:24:52,965 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2022-12-14 13:24:52,975 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21d2652c-586e-4a39-8def-2b8eed6fa23b/bin/utaipan-gh47qXpMRh/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 [2022-12-14 13:24:53,166 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21d2652c-586e-4a39-8def-2b8eed6fa23b/bin/utaipan-gh47qXpMRh/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 [2022-12-14 13:24:53,167 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 13:24:53,169 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 13:24:53,169 INFO L85 PathProgramCache]: Analyzing trace with hash 271073635, now seen corresponding path program 1 times [2022-12-14 13:24:53,178 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 13:24:53,179 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1080641244] [2022-12-14 13:24:53,179 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 13:24:53,180 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 [2022-12-14 13:24:53,180 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21d2652c-586e-4a39-8def-2b8eed6fa23b/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 13:24:53,183 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21d2652c-586e-4a39-8def-2b8eed6fa23b/bin/utaipan-gh47qXpMRh/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) [2022-12-14 13:24:53,186 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21d2652c-586e-4a39-8def-2b8eed6fa23b/bin/utaipan-gh47qXpMRh/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 [2022-12-14 13:24:53,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 13:24:54,020 INFO L263 TraceCheckSpWp]: Trace formula consists of 2042 conjuncts, 67 conjunts are in the unsatisfiable core [2022-12-14 13:24:54,028 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 13:24:54,199 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 13:24:54,200 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 13:25:03,077 WARN L233 SmtUtils]: Spent 8.21s on a formula simplification. DAG size of input: 227 DAG size of output: 166 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 13:25:03,509 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 13:25:03,509 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-12-14 13:25:03,509 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1080641244] [2022-12-14 13:25:03,509 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1080641244] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 13:25:03,510 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [2086883258] [2022-12-14 13:25:03,510 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 13:25:03,510 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-12-14 13:25:03,510 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21d2652c-586e-4a39-8def-2b8eed6fa23b/bin/utaipan-gh47qXpMRh/cvc4 [2022-12-14 13:25:03,511 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21d2652c-586e-4a39-8def-2b8eed6fa23b/bin/utaipan-gh47qXpMRh/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-12-14 13:25:03,512 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21d2652c-586e-4a39-8def-2b8eed6fa23b/bin/utaipan-gh47qXpMRh/cvc4 --incremental --print-success --lang smt (4)] Waiting until timeout for monitored process [2022-12-14 13:25:04,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 13:25:04,956 INFO L263 TraceCheckSpWp]: Trace formula consists of 2042 conjuncts, 80 conjunts are in the unsatisfiable core [2022-12-14 13:25:04,966 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 13:25:05,208 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 13:25:05,208 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 13:25:15,169 WARN L233 SmtUtils]: Spent 5.33s on a formula simplification. DAG size of input: 227 DAG size of output: 166 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 13:25:17,639 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 13:25:17,639 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [2086883258] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 13:25:17,639 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1585387350] [2022-12-14 13:25:17,640 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 13:25:17,640 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 13:25:17,640 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21d2652c-586e-4a39-8def-2b8eed6fa23b/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 13:25:17,641 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21d2652c-586e-4a39-8def-2b8eed6fa23b/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 13:25:17,642 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21d2652c-586e-4a39-8def-2b8eed6fa23b/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-12-14 13:25:18,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 13:25:18,124 INFO L263 TraceCheckSpWp]: Trace formula consists of 2042 conjuncts, 72 conjunts are in the unsatisfiable core [2022-12-14 13:25:18,132 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 13:25:18,317 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 13:25:18,318 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 13:25:37,479 WARN L233 SmtUtils]: Spent 10.14s on a formula simplification. DAG size of input: 227 DAG size of output: 166 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 13:25:48,454 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 13:25:48,454 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1585387350] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 13:25:48,455 INFO L184 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2022-12-14 13:25:48,455 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 6, 5, 6, 6] total 16 [2022-12-14 13:25:48,455 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1334254315] [2022-12-14 13:25:48,456 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2022-12-14 13:25:48,456 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-12-14 13:25:48,456 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-12-14 13:25:48,457 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-12-14 13:25:48,457 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=172, Unknown=10, NotChecked=0, Total=240 [2022-12-14 13:25:48,457 INFO L87 Difference]: Start difference. First operand 9 states and 9 transitions. Second operand has 16 states, 16 states have (on average 1.875) internal successors, (30), 16 states have internal predecessors, (30), 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) [2022-12-14 13:25:49,452 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 13:25:49,452 INFO L93 Difference]: Finished difference Result 16 states and 16 transitions. [2022-12-14 13:25:49,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-14 13:25:49,453 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 1.875) internal successors, (30), 16 states have internal predecessors, (30), 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 [2022-12-14 13:25:49,453 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 13:25:49,453 INFO L225 Difference]: With dead ends: 16 [2022-12-14 13:25:49,453 INFO L226 Difference]: Without dead ends: 14 [2022-12-14 13:25:49,454 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 27 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 74 ImplicationChecksByTransitivity, 50.5s TimeCoverageRelationStatistics Valid=94, Invalid=238, Unknown=10, NotChecked=0, Total=342 [2022-12-14 13:25:49,455 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 23 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 22 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-12-14 13:25:49,455 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 22 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-12-14 13:25:49,456 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2022-12-14 13:25:49,457 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 12. [2022-12-14 13:25:49,457 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) [2022-12-14 13:25:49,458 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 12 transitions. [2022-12-14 13:25:49,458 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 12 transitions. Word has length 8 [2022-12-14 13:25:49,458 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 13:25:49,458 INFO L495 AbstractCegarLoop]: Abstraction has 12 states and 12 transitions. [2022-12-14 13:25:49,458 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 1.875) internal successors, (30), 16 states have internal predecessors, (30), 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) [2022-12-14 13:25:49,458 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 12 transitions. [2022-12-14 13:25:49,459 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-12-14 13:25:49,459 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 13:25:49,459 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1] [2022-12-14 13:25:49,469 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21d2652c-586e-4a39-8def-2b8eed6fa23b/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2022-12-14 13:25:49,676 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21d2652c-586e-4a39-8def-2b8eed6fa23b/bin/utaipan-gh47qXpMRh/cvc4 --incremental --print-success --lang smt (4)] Ended with exit code 0 [2022-12-14 13:25:49,905 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21d2652c-586e-4a39-8def-2b8eed6fa23b/bin/utaipan-gh47qXpMRh/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 [2022-12-14 13:25:50,061 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21d2652c-586e-4a39-8def-2b8eed6fa23b/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21d2652c-586e-4a39-8def-2b8eed6fa23b/bin/utaipan-gh47qXpMRh/cvc4 --incremental --print-success --lang smt,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21d2652c-586e-4a39-8def-2b8eed6fa23b/bin/utaipan-gh47qXpMRh/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 [2022-12-14 13:25:50,063 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 13:25:50,064 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 13:25:50,064 INFO L85 PathProgramCache]: Analyzing trace with hash 1020920393, now seen corresponding path program 2 times [2022-12-14 13:25:50,069 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 13:25:50,070 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1701078954] [2022-12-14 13:25:50,070 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-12-14 13:25:50,070 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 [2022-12-14 13:25:50,070 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21d2652c-586e-4a39-8def-2b8eed6fa23b/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 13:25:50,071 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21d2652c-586e-4a39-8def-2b8eed6fa23b/bin/utaipan-gh47qXpMRh/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) [2022-12-14 13:25:50,072 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21d2652c-586e-4a39-8def-2b8eed6fa23b/bin/utaipan-gh47qXpMRh/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 [2022-12-14 13:25:51,022 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-12-14 13:25:51,022 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-14 13:25:51,098 INFO L263 TraceCheckSpWp]: Trace formula consists of 3738 conjuncts, 105 conjunts are in the unsatisfiable core [2022-12-14 13:25:51,108 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 13:25:51,395 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 13:25:51,395 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 13:26:13,491 WARN L233 SmtUtils]: Spent 21.55s on a formula simplification. DAG size of input: 235 DAG size of output: 173 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 13:30:04,276 WARN L233 SmtUtils]: Spent 3.75m on a formula simplification. DAG size of input: 321 DAG size of output: 286 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 13:30:05,080 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 13:30:05,080 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-12-14 13:30:05,080 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1701078954] [2022-12-14 13:30:05,080 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1701078954] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 13:30:05,081 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1221072203] [2022-12-14 13:30:05,081 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-12-14 13:30:05,081 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-12-14 13:30:05,081 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21d2652c-586e-4a39-8def-2b8eed6fa23b/bin/utaipan-gh47qXpMRh/cvc4 [2022-12-14 13:30:05,082 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21d2652c-586e-4a39-8def-2b8eed6fa23b/bin/utaipan-gh47qXpMRh/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-12-14 13:30:05,083 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21d2652c-586e-4a39-8def-2b8eed6fa23b/bin/utaipan-gh47qXpMRh/cvc4 --incremental --print-success --lang smt (7)] Waiting until timeout for monitored process [2022-12-14 13:30:07,697 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-12-14 13:30:07,697 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-14 13:30:07,820 INFO L263 TraceCheckSpWp]: Trace formula consists of 3738 conjuncts, 113 conjunts are in the unsatisfiable core [2022-12-14 13:30:07,831 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 13:30:08,345 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 13:30:08,345 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 13:30:38,114 WARN L233 SmtUtils]: Spent 22.56s on a formula simplification. DAG size of input: 325 DAG size of output: 178 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 13:30:38,279 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 13:30:38,279 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1221072203] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 13:30:38,279 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [511713336] [2022-12-14 13:30:38,279 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-12-14 13:30:38,279 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 13:30:38,279 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21d2652c-586e-4a39-8def-2b8eed6fa23b/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 13:30:38,280 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21d2652c-586e-4a39-8def-2b8eed6fa23b/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 13:30:38,281 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21d2652c-586e-4a39-8def-2b8eed6fa23b/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-12-14 13:30:39,058 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-12-14 13:30:39,059 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-14 13:30:39,086 INFO L263 TraceCheckSpWp]: Trace formula consists of 3738 conjuncts, 221 conjunts are in the unsatisfiable core [2022-12-14 13:30:39,100 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 13:30:40,147 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 13:30:40,147 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 13:32:52,190 WARN L233 SmtUtils]: Spent 1.95m on a formula simplification. DAG size of input: 385 DAG size of output: 238 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 13:36:07,253 WARN L233 SmtUtils]: Spent 3.08m on a formula simplification. DAG size of input: 400 DAG size of output: 375 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)