./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.hanoi.2.prop1-func-interl.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4e7fbc69 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a07f9f3-7916-4eb8-9320-151b884afc15/bin/utaipan-Q6hlc19bkW/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a07f9f3-7916-4eb8-9320-151b884afc15/bin/utaipan-Q6hlc19bkW/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a07f9f3-7916-4eb8-9320-151b884afc15/bin/utaipan-Q6hlc19bkW/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a07f9f3-7916-4eb8-9320-151b884afc15/bin/utaipan-Q6hlc19bkW/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.hanoi.2.prop1-func-interl.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a07f9f3-7916-4eb8-9320-151b884afc15/bin/utaipan-Q6hlc19bkW/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a07f9f3-7916-4eb8-9320-151b884afc15/bin/utaipan-Q6hlc19bkW --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash c167a5402298a43dd587eb5fb1988ee38c66dc34734da01583376b43b4a77429 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-4e7fbc6 [2022-11-23 14:41:40,497 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-23 14:41:40,499 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-23 14:41:40,529 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-23 14:41:40,530 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-23 14:41:40,531 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-23 14:41:40,532 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-23 14:41:40,534 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-23 14:41:40,536 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-23 14:41:40,537 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-23 14:41:40,538 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-23 14:41:40,544 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-23 14:41:40,545 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-23 14:41:40,553 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-23 14:41:40,556 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-23 14:41:40,558 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-23 14:41:40,560 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-23 14:41:40,562 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-23 14:41:40,563 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-23 14:41:40,570 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-23 14:41:40,572 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-23 14:41:40,575 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-23 14:41:40,577 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-23 14:41:40,578 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-23 14:41:40,587 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-23 14:41:40,588 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-23 14:41:40,588 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-23 14:41:40,589 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-23 14:41:40,589 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-23 14:41:40,590 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-23 14:41:40,590 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-23 14:41:40,591 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-23 14:41:40,592 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-23 14:41:40,593 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-23 14:41:40,594 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-23 14:41:40,594 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-23 14:41:40,595 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-23 14:41:40,595 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-23 14:41:40,595 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-23 14:41:40,596 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-23 14:41:40,597 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-23 14:41:40,601 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a07f9f3-7916-4eb8-9320-151b884afc15/bin/utaipan-Q6hlc19bkW/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-11-23 14:41:40,646 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-23 14:41:40,646 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-23 14:41:40,647 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-23 14:41:40,647 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-23 14:41:40,648 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-23 14:41:40,648 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-23 14:41:40,648 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-23 14:41:40,649 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-23 14:41:40,649 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-23 14:41:40,649 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-23 14:41:40,650 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-23 14:41:40,651 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-23 14:41:40,651 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-23 14:41:40,651 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-23 14:41:40,651 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-23 14:41:40,651 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-23 14:41:40,652 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-23 14:41:40,652 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-23 14:41:40,653 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-23 14:41:40,653 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-23 14:41:40,653 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-23 14:41:40,653 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-23 14:41:40,653 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-23 14:41:40,654 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-23 14:41:40,654 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-23 14:41:40,654 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-23 14:41:40,654 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-23 14:41:40,654 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-23 14:41:40,655 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-23 14:41:40,655 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 14:41:40,655 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-23 14:41:40,656 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-23 14:41:40,656 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-23 14:41:40,656 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-23 14:41:40,656 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-23 14:41:40,656 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-23 14:41:40,657 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-23 14:41:40,657 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-23 14:41:40,657 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_5a07f9f3-7916-4eb8-9320-151b884afc15/bin/utaipan-Q6hlc19bkW/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a07f9f3-7916-4eb8-9320-151b884afc15/bin/utaipan-Q6hlc19bkW Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c167a5402298a43dd587eb5fb1988ee38c66dc34734da01583376b43b4a77429 [2022-11-23 14:41:40,932 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-23 14:41:40,962 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-23 14:41:40,964 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-23 14:41:40,966 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-23 14:41:40,966 INFO L275 PluginConnector]: CDTParser initialized [2022-11-23 14:41:40,968 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a07f9f3-7916-4eb8-9320-151b884afc15/bin/utaipan-Q6hlc19bkW/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.hanoi.2.prop1-func-interl.c [2022-11-23 14:41:44,123 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-23 14:41:44,509 INFO L351 CDTParser]: Found 1 translation units. [2022-11-23 14:41:44,510 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a07f9f3-7916-4eb8-9320-151b884afc15/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.hanoi.2.prop1-func-interl.c [2022-11-23 14:41:44,548 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a07f9f3-7916-4eb8-9320-151b884afc15/bin/utaipan-Q6hlc19bkW/data/9e62cf973/ce7d6917575543b7be03f0dfe7772b1d/FLAG4f8e947e5 [2022-11-23 14:41:44,569 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a07f9f3-7916-4eb8-9320-151b884afc15/bin/utaipan-Q6hlc19bkW/data/9e62cf973/ce7d6917575543b7be03f0dfe7772b1d [2022-11-23 14:41:44,572 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-23 14:41:44,576 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-23 14:41:44,577 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-23 14:41:44,582 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-23 14:41:44,586 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-23 14:41:44,587 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:41:44" (1/1) ... [2022-11-23 14:41:44,588 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@53ab189a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:41:44, skipping insertion in model container [2022-11-23 14:41:44,589 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:41:44" (1/1) ... [2022-11-23 14:41:44,598 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-23 14:41:44,704 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-23 14:41:44,897 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_5a07f9f3-7916-4eb8-9320-151b884afc15/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.hanoi.2.prop1-func-interl.c[1014,1027] [2022-11-23 14:41:45,359 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 14:41:45,373 INFO L203 MainTranslator]: Completed pre-run [2022-11-23 14:41:45,382 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_5a07f9f3-7916-4eb8-9320-151b884afc15/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.hanoi.2.prop1-func-interl.c[1014,1027] [2022-11-23 14:41:45,622 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 14:41:45,634 INFO L208 MainTranslator]: Completed translation [2022-11-23 14:41:45,635 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:41:45 WrapperNode [2022-11-23 14:41:45,635 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-23 14:41:45,636 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-23 14:41:45,636 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-23 14:41:45,636 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-23 14:41:45,644 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:41:45" (1/1) ... [2022-11-23 14:41:45,700 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:41:45" (1/1) ... [2022-11-23 14:41:45,845 INFO L138 Inliner]: procedures = 11, calls = 3, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 2384 [2022-11-23 14:41:45,845 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-23 14:41:45,846 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-23 14:41:45,847 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-23 14:41:45,847 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-23 14:41:45,857 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:41:45" (1/1) ... [2022-11-23 14:41:45,858 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:41:45" (1/1) ... [2022-11-23 14:41:45,875 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:41:45" (1/1) ... [2022-11-23 14:41:45,875 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:41:45" (1/1) ... [2022-11-23 14:41:45,956 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:41:45" (1/1) ... [2022-11-23 14:41:45,977 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:41:45" (1/1) ... [2022-11-23 14:41:46,011 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:41:45" (1/1) ... [2022-11-23 14:41:46,024 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:41:45" (1/1) ... [2022-11-23 14:41:46,061 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-23 14:41:46,063 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-23 14:41:46,063 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-23 14:41:46,064 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-23 14:41:46,064 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:41:45" (1/1) ... [2022-11-23 14:41:46,118 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 14:41:46,130 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a07f9f3-7916-4eb8-9320-151b884afc15/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 14:41:46,152 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a07f9f3-7916-4eb8-9320-151b884afc15/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-23 14:41:46,167 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a07f9f3-7916-4eb8-9320-151b884afc15/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-23 14:41:46,240 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-23 14:41:46,240 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-23 14:41:46,806 INFO L235 CfgBuilder]: Building ICFG [2022-11-23 14:41:46,808 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-23 14:48:33,552 INFO L276 CfgBuilder]: Performing block encoding [2022-11-23 14:48:33,595 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-23 14:48:33,595 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-23 14:48:33,598 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:48:33 BoogieIcfgContainer [2022-11-23 14:48:33,598 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-23 14:48:33,600 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-23 14:48:33,600 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-23 14:48:33,604 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-23 14:48:33,605 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 02:41:44" (1/3) ... [2022-11-23 14:48:33,608 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@78180cd7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:48:33, skipping insertion in model container [2022-11-23 14:48:33,608 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:41:45" (2/3) ... [2022-11-23 14:48:33,608 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@78180cd7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:48:33, skipping insertion in model container [2022-11-23 14:48:33,609 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:48:33" (3/3) ... [2022-11-23 14:48:33,615 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.hanoi.2.prop1-func-interl.c [2022-11-23 14:48:33,636 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-23 14:48:33,636 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-23 14:48:33,701 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-23 14:48:33,712 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;@281bb91, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-23 14:48:33,713 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-23 14:48:33,717 INFO L276 IsEmpty]: Start isEmpty. Operand has 7 states, 5 states have (on average 1.6) internal successors, (8), 6 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:48:33,725 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-11-23 14:48:33,725 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:48:33,727 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-11-23 14:48:33,728 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 14:48:33,735 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:48:33,736 INFO L85 PathProgramCache]: Analyzing trace with hash 1827279, now seen corresponding path program 1 times [2022-11-23 14:48:33,746 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:48:33,747 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1262866616] [2022-11-23 14:48:33,747 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:48:33,748 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:48:34,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-23 14:48:34,110 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-23 14:48:34,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-23 14:48:34,310 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-11-23 14:48:34,313 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-23 14:48:34,314 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-23 14:48:34,316 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-23 14:48:34,321 INFO L444 BasicCegarLoop]: Path program histogram: [1] [2022-11-23 14:48:34,325 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-23 14:48:34,353 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2022-11-23 14:48:34,365 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 02:48:34 BoogieIcfgContainer [2022-11-23 14:48:34,365 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-23 14:48:34,366 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-23 14:48:34,366 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-23 14:48:34,366 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-23 14:48:34,367 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:48:33" (3/4) ... [2022-11-23 14:48:34,370 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-23 14:48:34,371 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-23 14:48:34,372 INFO L158 Benchmark]: Toolchain (without parser) took 409798.08ms. Allocated memory was 155.2MB in the beginning and 864.0MB in the end (delta: 708.8MB). Free memory was 124.6MB in the beginning and 492.6MB in the end (delta: -368.0MB). Peak memory consumption was 339.6MB. Max. memory is 16.1GB. [2022-11-23 14:48:34,372 INFO L158 Benchmark]: CDTParser took 0.26ms. Allocated memory is still 123.7MB. Free memory is still 93.0MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-23 14:48:34,373 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1057.84ms. Allocated memory is still 155.2MB. Free memory was 124.4MB in the beginning and 90.3MB in the end (delta: 34.1MB). Peak memory consumption was 53.2MB. Max. memory is 16.1GB. [2022-11-23 14:48:34,374 INFO L158 Benchmark]: Boogie Procedure Inliner took 209.33ms. Allocated memory is still 155.2MB. Free memory was 90.3MB in the beginning and 65.2MB in the end (delta: 25.2MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2022-11-23 14:48:34,374 INFO L158 Benchmark]: Boogie Preprocessor took 215.71ms. Allocated memory is still 155.2MB. Free memory was 65.2MB in the beginning and 53.5MB in the end (delta: 11.7MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-23 14:48:34,375 INFO L158 Benchmark]: RCFGBuilder took 407535.26ms. Allocated memory was 155.2MB in the beginning and 864.0MB in the end (delta: 708.8MB). Free memory was 53.5MB in the beginning and 541.9MB in the end (delta: -488.5MB). Peak memory consumption was 491.9MB. Max. memory is 16.1GB. [2022-11-23 14:48:34,376 INFO L158 Benchmark]: TraceAbstraction took 765.38ms. Allocated memory is still 864.0MB. Free memory was 540.9MB in the beginning and 492.6MB in the end (delta: 48.2MB). Peak memory consumption was 48.2MB. Max. memory is 16.1GB. [2022-11-23 14:48:34,376 INFO L158 Benchmark]: Witness Printer took 4.91ms. Allocated memory is still 864.0MB. Free memory is still 492.6MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-23 14:48:34,379 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26ms. Allocated memory is still 123.7MB. Free memory is still 93.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1057.84ms. Allocated memory is still 155.2MB. Free memory was 124.4MB in the beginning and 90.3MB in the end (delta: 34.1MB). Peak memory consumption was 53.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 209.33ms. Allocated memory is still 155.2MB. Free memory was 90.3MB in the beginning and 65.2MB in the end (delta: 25.2MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 215.71ms. Allocated memory is still 155.2MB. Free memory was 65.2MB in the beginning and 53.5MB in the end (delta: 11.7MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * RCFGBuilder took 407535.26ms. Allocated memory was 155.2MB in the beginning and 864.0MB in the end (delta: 708.8MB). Free memory was 53.5MB in the beginning and 541.9MB in the end (delta: -488.5MB). Peak memory consumption was 491.9MB. Max. memory is 16.1GB. * TraceAbstraction took 765.38ms. Allocated memory is still 864.0MB. Free memory was 540.9MB in the beginning and 492.6MB in the end (delta: 48.2MB). Peak memory consumption was 48.2MB. Max. memory is 16.1GB. * Witness Printer took 4.91ms. Allocated memory is still 864.0MB. Free memory is still 492.6MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. * 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 248, overapproximation of bitwiseAnd at line 227, overapproximation of bitwiseXor at line 242. 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_2 mask_SORT_2 = (SORT_2)-1 >> (sizeof(SORT_2) * 8 - 8); [L29] const SORT_2 msb_SORT_2 = (SORT_2)1 << (8 - 1); [L31] const SORT_3 mask_SORT_3 = (SORT_3)-1 >> (sizeof(SORT_3) * 8 - 24); [L32] const SORT_3 msb_SORT_3 = (SORT_3)1 << (24 - 1); [L34] const SORT_4 mask_SORT_4 = (SORT_4)-1 >> (sizeof(SORT_4) * 8 - 32); [L35] const SORT_4 msb_SORT_4 = (SORT_4)1 << (32 - 1); [L37] const SORT_2 var_5 = 0; [L38] const SORT_1 var_90 = 0; [L39] const SORT_2 var_105 = 12; [L40] const SORT_2 var_106 = 1; [L41] const SORT_2 var_111 = 100; [L42] const SORT_2 var_112 = 0; [L43] const SORT_2 var_113 = 13; [L44] const SORT_4 var_118 = 0; [L45] const SORT_3 var_119 = 0; [L46] const SORT_4 var_121 = 1; [L47] const SORT_4 var_126 = 2; [L48] const SORT_4 var_128 = 3; [L49] const SORT_4 var_130 = 4; [L50] const SORT_4 var_132 = 5; [L51] const SORT_4 var_134 = 6; [L52] const SORT_4 var_136 = 7; [L53] const SORT_4 var_138 = 8; [L54] const SORT_4 var_140 = 9; [L55] const SORT_4 var_142 = 10; [L56] const SORT_4 var_144 = 11; [L57] const SORT_2 var_215 = 11; [L58] const SORT_2 var_216 = 2; [L59] const SORT_2 var_230 = 10; [L60] const SORT_2 var_231 = 3; [L61] const SORT_2 var_245 = 9; [L62] const SORT_2 var_246 = 4; [L63] const SORT_2 var_260 = 8; [L64] const SORT_2 var_261 = 5; [L65] const SORT_2 var_275 = 7; [L66] const SORT_2 var_276 = 6; [L67] const SORT_4 var_358 = 12; [L69] SORT_1 input_116; [L70] SORT_1 input_158; [L71] SORT_1 input_191; [L72] SORT_1 input_193; [L73] SORT_1 input_379; [L74] SORT_1 input_381; [L76] SORT_2 state_6 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L77] SORT_2 state_8 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L78] SORT_2 state_10 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L79] SORT_2 state_12 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L80] SORT_2 state_14 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L81] SORT_2 state_16 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L82] SORT_2 state_18 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L83] SORT_2 state_20 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L84] SORT_2 state_22 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L85] SORT_2 state_24 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L86] SORT_2 state_26 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L87] SORT_2 state_28 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L88] SORT_2 state_30 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L89] SORT_2 state_32 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L90] SORT_2 state_34 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L91] SORT_2 state_36 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L92] SORT_2 state_38 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L93] SORT_2 state_40 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L94] SORT_2 state_42 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L95] SORT_2 state_44 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L96] SORT_2 state_46 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L97] SORT_2 state_48 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L98] SORT_2 state_50 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L99] SORT_2 state_52 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L100] SORT_2 state_54 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L101] SORT_2 state_56 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L102] SORT_2 state_58 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L103] SORT_2 state_60 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L104] SORT_2 state_62 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L105] SORT_2 state_64 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L106] SORT_2 state_66 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L107] SORT_2 state_68 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L108] SORT_2 state_70 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L109] SORT_2 state_72 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L110] SORT_2 state_74 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L111] SORT_2 state_76 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L112] SORT_2 state_78 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L113] SORT_2 state_80 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L114] SORT_2 state_82 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L115] SORT_2 state_84 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L116] SORT_2 state_86 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L117] SORT_2 state_88 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L118] SORT_1 state_91 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L119] SORT_1 state_93 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L120] SORT_1 state_95 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L121] SORT_1 state_97 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L122] SORT_1 state_99 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L123] SORT_1 state_101 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L124] SORT_1 state_103 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L126] SORT_2 init_7_arg_1 = var_5; [L127] state_6 = init_7_arg_1 [L128] SORT_2 init_9_arg_1 = var_5; [L129] state_8 = init_9_arg_1 [L130] SORT_2 init_11_arg_1 = var_5; [L131] state_10 = init_11_arg_1 [L132] SORT_2 init_13_arg_1 = var_5; [L133] state_12 = init_13_arg_1 [L134] SORT_2 init_15_arg_1 = var_5; [L135] state_14 = init_15_arg_1 [L136] SORT_2 init_17_arg_1 = var_5; [L137] state_16 = init_17_arg_1 [L138] SORT_2 init_19_arg_1 = var_5; [L139] state_18 = init_19_arg_1 [L140] SORT_2 init_21_arg_1 = var_5; [L141] state_20 = init_21_arg_1 [L142] SORT_2 init_23_arg_1 = var_5; [L143] state_22 = init_23_arg_1 [L144] SORT_2 init_25_arg_1 = var_5; [L145] state_24 = init_25_arg_1 [L146] SORT_2 init_27_arg_1 = var_5; [L147] state_26 = init_27_arg_1 [L148] SORT_2 init_29_arg_1 = var_5; [L149] state_28 = init_29_arg_1 [L150] SORT_2 init_31_arg_1 = var_5; [L151] state_30 = init_31_arg_1 [L152] SORT_2 init_33_arg_1 = var_5; [L153] state_32 = init_33_arg_1 [L154] SORT_2 init_35_arg_1 = var_5; [L155] state_34 = init_35_arg_1 [L156] SORT_2 init_37_arg_1 = var_5; [L157] state_36 = init_37_arg_1 [L158] SORT_2 init_39_arg_1 = var_5; [L159] state_38 = init_39_arg_1 [L160] SORT_2 init_41_arg_1 = var_5; [L161] state_40 = init_41_arg_1 [L162] SORT_2 init_43_arg_1 = var_5; [L163] state_42 = init_43_arg_1 [L164] SORT_2 init_45_arg_1 = var_5; [L165] state_44 = init_45_arg_1 [L166] SORT_2 init_47_arg_1 = var_5; [L167] state_46 = init_47_arg_1 [L168] SORT_2 init_49_arg_1 = var_5; [L169] state_48 = init_49_arg_1 [L170] SORT_2 init_51_arg_1 = var_5; [L171] state_50 = init_51_arg_1 [L172] SORT_2 init_53_arg_1 = var_5; [L173] state_52 = init_53_arg_1 [L174] SORT_2 init_55_arg_1 = var_5; [L175] state_54 = init_55_arg_1 [L176] SORT_2 init_57_arg_1 = var_5; [L177] state_56 = init_57_arg_1 [L178] SORT_2 init_59_arg_1 = var_5; [L179] state_58 = init_59_arg_1 [L180] SORT_2 init_61_arg_1 = var_5; [L181] state_60 = init_61_arg_1 [L182] SORT_2 init_63_arg_1 = var_5; [L183] state_62 = init_63_arg_1 [L184] SORT_2 init_65_arg_1 = var_5; [L185] state_64 = init_65_arg_1 [L186] SORT_2 init_67_arg_1 = var_5; [L187] state_66 = init_67_arg_1 [L188] SORT_2 init_69_arg_1 = var_5; [L189] state_68 = init_69_arg_1 [L190] SORT_2 init_71_arg_1 = var_5; [L191] state_70 = init_71_arg_1 [L192] SORT_2 init_73_arg_1 = var_5; [L193] state_72 = init_73_arg_1 [L194] SORT_2 init_75_arg_1 = var_5; [L195] state_74 = init_75_arg_1 [L196] SORT_2 init_77_arg_1 = var_5; [L197] state_76 = init_77_arg_1 [L198] SORT_2 init_79_arg_1 = var_5; [L199] state_78 = init_79_arg_1 [L200] SORT_2 init_81_arg_1 = var_5; [L201] state_80 = init_81_arg_1 [L202] SORT_2 init_83_arg_1 = var_5; [L203] state_82 = init_83_arg_1 [L204] SORT_2 init_85_arg_1 = var_5; [L205] state_84 = init_85_arg_1 [L206] SORT_2 init_87_arg_1 = var_5; [L207] state_86 = init_87_arg_1 [L208] SORT_2 init_89_arg_1 = var_5; [L209] state_88 = init_89_arg_1 [L210] SORT_1 init_92_arg_1 = var_90; [L211] state_91 = init_92_arg_1 [L212] SORT_1 init_94_arg_1 = var_90; [L213] state_93 = init_94_arg_1 [L214] SORT_1 init_96_arg_1 = var_90; [L215] state_95 = init_96_arg_1 [L216] SORT_1 init_98_arg_1 = var_90; [L217] state_97 = init_98_arg_1 [L218] SORT_1 init_100_arg_1 = var_90; [L219] state_99 = init_100_arg_1 [L220] SORT_1 init_102_arg_1 = var_90; [L221] state_101 = init_102_arg_1 [L222] SORT_1 init_104_arg_1 = var_90; [L223] state_103 = init_104_arg_1 VAL [init_100_arg_1=0, init_102_arg_1=0, init_104_arg_1=0, init_11_arg_1=0, init_13_arg_1=0, init_15_arg_1=0, init_17_arg_1=0, init_19_arg_1=0, init_21_arg_1=0, init_23_arg_1=0, init_25_arg_1=0, init_27_arg_1=0, init_29_arg_1=0, init_31_arg_1=0, init_33_arg_1=0, init_35_arg_1=0, init_37_arg_1=0, init_39_arg_1=0, init_41_arg_1=0, init_43_arg_1=0, init_45_arg_1=0, init_47_arg_1=0, init_49_arg_1=0, init_51_arg_1=0, init_53_arg_1=0, init_55_arg_1=0, init_57_arg_1=0, init_59_arg_1=0, init_61_arg_1=0, init_63_arg_1=0, init_65_arg_1=0, init_67_arg_1=0, init_69_arg_1=0, init_71_arg_1=0, init_73_arg_1=0, init_75_arg_1=0, init_77_arg_1=0, init_79_arg_1=0, init_7_arg_1=0, init_81_arg_1=0, init_83_arg_1=0, init_85_arg_1=0, init_87_arg_1=0, init_89_arg_1=0, init_92_arg_1=0, init_94_arg_1=0, init_96_arg_1=0, init_98_arg_1=0, init_9_arg_1=0, mask_SORT_1=1, mask_SORT_2=255, mask_SORT_3=4294967295, mask_SORT_4=4294967295, msb_SORT_1=1, msb_SORT_2=128, msb_SORT_3=8388608, msb_SORT_4=2147483648, state_10=0, state_101=0, state_103=0, state_12=0, state_14=0, state_16=0, state_18=0, state_20=0, state_22=0, state_24=0, state_26=0, state_28=0, state_30=0, state_32=0, state_34=0, state_36=0, state_38=0, state_40=0, state_42=0, state_44=0, state_46=0, state_48=0, state_50=0, state_52=0, state_54=0, state_56=0, state_58=0, state_6=0, state_60=0, state_62=0, state_64=0, state_66=0, state_68=0, state_70=0, state_72=0, state_74=0, state_76=0, state_78=0, state_8=0, state_80=0, state_82=0, state_84=0, state_86=0, state_88=0, state_91=0, state_93=0, state_95=0, state_97=0, state_99=0, var_105=12, var_106=1, var_111=100, var_112=0, var_113=13, var_118=0, var_119=0, var_121=1, var_126=2, var_128=3, var_130=4, var_132=5, var_134=6, var_136=7, var_138=8, var_140=9, var_142=10, var_144=11, var_215=11, var_216=2, var_230=10, var_231=3, var_245=9, var_246=4, var_260=8, var_261=5, var_275=7, var_276=6, var_358=12, var_5=0, var_90=0] [L226] input_116 = __VERIFIER_nondet_uchar() [L227] input_116 = input_116 & mask_SORT_1 [L228] input_158 = __VERIFIER_nondet_uchar() [L229] input_158 = input_158 & mask_SORT_1 [L230] input_191 = __VERIFIER_nondet_uchar() [L231] input_191 = input_191 & mask_SORT_1 [L232] input_193 = __VERIFIER_nondet_uchar() [L233] input_193 = input_193 & mask_SORT_1 [L234] input_379 = __VERIFIER_nondet_uchar() [L235] input_379 = input_379 & mask_SORT_1 [L236] input_381 = __VERIFIER_nondet_uchar() [L237] input_381 = input_381 & mask_SORT_1 [L240] SORT_2 var_107_arg_0 = var_106; [L241] SORT_2 var_107_arg_1 = state_88; [L242] SORT_2 var_107 = var_107_arg_0 ^ var_107_arg_1; [L243] var_107 = var_107 & mask_SORT_2 [L244] SORT_2 var_108_arg_0 = var_105; [L245] SORT_2 var_108_arg_1 = var_107; [L246] SORT_1 var_108 = var_108_arg_0 == var_108_arg_1; [L247] SORT_1 var_109_arg_0 = var_108; [L248] SORT_1 var_109_arg_1 = ~state_103; [L249] var_109_arg_1 = var_109_arg_1 & mask_SORT_1 [L250] SORT_1 var_109 = var_109_arg_0 & var_109_arg_1; [L251] var_109 = var_109 & mask_SORT_1 [L252] SORT_1 bad_110_arg_0 = var_109; [L253] CALL __VERIFIER_assert(!(bad_110_arg_0)) [L20] COND TRUE !(cond) VAL [cond=0, unknown-#in~cond-unknown=0] [L20] reach_error() VAL [cond=0, unknown-#in~cond-unknown=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 7 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.6s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=7occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 4 NumberOfCodeBlocks, 4 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-11-23 14:48:34,429 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a07f9f3-7916-4eb8-9320-151b884afc15/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a07f9f3-7916-4eb8-9320-151b884afc15/bin/utaipan-Q6hlc19bkW/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a07f9f3-7916-4eb8-9320-151b884afc15/bin/utaipan-Q6hlc19bkW/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a07f9f3-7916-4eb8-9320-151b884afc15/bin/utaipan-Q6hlc19bkW/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a07f9f3-7916-4eb8-9320-151b884afc15/bin/utaipan-Q6hlc19bkW/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.hanoi.2.prop1-func-interl.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a07f9f3-7916-4eb8-9320-151b884afc15/bin/utaipan-Q6hlc19bkW/config/svcomp-Reach-64bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a07f9f3-7916-4eb8-9320-151b884afc15/bin/utaipan-Q6hlc19bkW --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash c167a5402298a43dd587eb5fb1988ee38c66dc34734da01583376b43b4a77429 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-4e7fbc6 [2022-11-23 14:48:37,050 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-23 14:48:37,053 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-23 14:48:37,097 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-23 14:48:37,098 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-23 14:48:37,102 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-23 14:48:37,104 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-23 14:48:37,106 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-23 14:48:37,109 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-23 14:48:37,113 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-23 14:48:37,114 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-23 14:48:37,115 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-23 14:48:37,116 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-23 14:48:37,124 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-23 14:48:37,125 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-23 14:48:37,126 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-23 14:48:37,127 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-23 14:48:37,133 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-23 14:48:37,135 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-23 14:48:37,137 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-23 14:48:37,139 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-23 14:48:37,147 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-23 14:48:37,149 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-23 14:48:37,151 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-23 14:48:37,156 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-23 14:48:37,163 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-23 14:48:37,164 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-23 14:48:37,165 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-23 14:48:37,167 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-23 14:48:37,168 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-23 14:48:37,168 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-23 14:48:37,169 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-23 14:48:37,171 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-23 14:48:37,172 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-23 14:48:37,174 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-23 14:48:37,178 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-23 14:48:37,184 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-23 14:48:37,185 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-23 14:48:37,186 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-23 14:48:37,187 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-23 14:48:37,188 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-23 14:48:37,189 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a07f9f3-7916-4eb8-9320-151b884afc15/bin/utaipan-Q6hlc19bkW/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2022-11-23 14:48:37,232 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-23 14:48:37,233 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-23 14:48:37,234 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-23 14:48:37,234 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-23 14:48:37,236 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-23 14:48:37,236 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-23 14:48:37,236 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-23 14:48:37,236 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-23 14:48:37,237 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-23 14:48:37,237 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-23 14:48:37,238 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-23 14:48:37,238 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-23 14:48:37,239 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-23 14:48:37,240 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-23 14:48:37,240 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-23 14:48:37,240 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-23 14:48:37,240 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-23 14:48:37,241 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-23 14:48:37,241 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-23 14:48:37,241 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-23 14:48:37,241 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-23 14:48:37,242 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-23 14:48:37,242 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-23 14:48:37,242 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-23 14:48:37,243 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-23 14:48:37,243 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-23 14:48:37,243 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 14:48:37,243 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-23 14:48:37,244 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-23 14:48:37,244 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-23 14:48:37,244 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2022-11-23 14:48:37,244 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-23 14:48:37,245 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-23 14:48:37,245 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-23 14:48:37,245 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-23 14:48:37,246 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_5a07f9f3-7916-4eb8-9320-151b884afc15/bin/utaipan-Q6hlc19bkW/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a07f9f3-7916-4eb8-9320-151b884afc15/bin/utaipan-Q6hlc19bkW Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c167a5402298a43dd587eb5fb1988ee38c66dc34734da01583376b43b4a77429 [2022-11-23 14:48:37,642 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-23 14:48:37,667 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-23 14:48:37,670 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-23 14:48:37,673 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-23 14:48:37,674 INFO L275 PluginConnector]: CDTParser initialized [2022-11-23 14:48:37,675 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a07f9f3-7916-4eb8-9320-151b884afc15/bin/utaipan-Q6hlc19bkW/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.hanoi.2.prop1-func-interl.c [2022-11-23 14:48:40,944 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-23 14:48:41,347 INFO L351 CDTParser]: Found 1 translation units. [2022-11-23 14:48:41,347 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a07f9f3-7916-4eb8-9320-151b884afc15/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.hanoi.2.prop1-func-interl.c [2022-11-23 14:48:41,367 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a07f9f3-7916-4eb8-9320-151b884afc15/bin/utaipan-Q6hlc19bkW/data/6c1751366/7d0545bd71624019a65533f1bdfbf9a8/FLAG28f378472 [2022-11-23 14:48:41,383 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a07f9f3-7916-4eb8-9320-151b884afc15/bin/utaipan-Q6hlc19bkW/data/6c1751366/7d0545bd71624019a65533f1bdfbf9a8 [2022-11-23 14:48:41,386 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-23 14:48:41,387 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-23 14:48:41,389 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-23 14:48:41,389 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-23 14:48:41,393 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-23 14:48:41,394 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:48:41" (1/1) ... [2022-11-23 14:48:41,395 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@47b8c6aa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:48:41, skipping insertion in model container [2022-11-23 14:48:41,396 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:48:41" (1/1) ... [2022-11-23 14:48:41,404 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-23 14:48:41,477 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-23 14:48:41,668 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_5a07f9f3-7916-4eb8-9320-151b884afc15/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.hanoi.2.prop1-func-interl.c[1014,1027] [2022-11-23 14:48:42,094 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 14:48:42,103 INFO L203 MainTranslator]: Completed pre-run [2022-11-23 14:48:42,116 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_5a07f9f3-7916-4eb8-9320-151b884afc15/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.hanoi.2.prop1-func-interl.c[1014,1027] [2022-11-23 14:48:42,341 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 14:48:42,354 INFO L208 MainTranslator]: Completed translation [2022-11-23 14:48:42,355 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:48:42 WrapperNode [2022-11-23 14:48:42,355 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-23 14:48:42,357 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-23 14:48:42,357 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-23 14:48:42,357 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-23 14:48:42,365 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:48:42" (1/1) ... [2022-11-23 14:48:42,417 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:48:42" (1/1) ... [2022-11-23 14:48:42,590 INFO L138 Inliner]: procedures = 11, calls = 3, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 2384 [2022-11-23 14:48:42,590 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-23 14:48:42,592 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-23 14:48:42,592 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-23 14:48:42,592 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-23 14:48:42,602 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:48:42" (1/1) ... [2022-11-23 14:48:42,603 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:48:42" (1/1) ... [2022-11-23 14:48:42,629 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:48:42" (1/1) ... [2022-11-23 14:48:42,629 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:48:42" (1/1) ... [2022-11-23 14:48:42,711 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:48:42" (1/1) ... [2022-11-23 14:48:42,717 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:48:42" (1/1) ... [2022-11-23 14:48:42,728 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:48:42" (1/1) ... [2022-11-23 14:48:42,737 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:48:42" (1/1) ... [2022-11-23 14:48:42,756 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-23 14:48:42,757 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-23 14:48:42,757 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-23 14:48:42,757 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-23 14:48:42,758 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:48:42" (1/1) ... [2022-11-23 14:48:42,789 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 14:48:42,800 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a07f9f3-7916-4eb8-9320-151b884afc15/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 14:48:42,816 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a07f9f3-7916-4eb8-9320-151b884afc15/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-23 14:48:42,848 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a07f9f3-7916-4eb8-9320-151b884afc15/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-23 14:48:42,872 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-23 14:48:42,872 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-23 14:48:43,518 INFO L235 CfgBuilder]: Building ICFG [2022-11-23 14:48:43,520 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-23 14:48:48,762 INFO L276 CfgBuilder]: Performing block encoding [2022-11-23 14:48:48,769 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-23 14:48:48,769 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-23 14:48:48,771 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:48:48 BoogieIcfgContainer [2022-11-23 14:48:48,771 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-23 14:48:48,774 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-23 14:48:48,774 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-23 14:48:48,777 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-23 14:48:48,777 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 02:48:41" (1/3) ... [2022-11-23 14:48:48,778 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3cc09b96 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:48:48, skipping insertion in model container [2022-11-23 14:48:48,778 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:48:42" (2/3) ... [2022-11-23 14:48:48,779 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3cc09b96 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:48:48, skipping insertion in model container [2022-11-23 14:48:48,779 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:48:48" (3/3) ... [2022-11-23 14:48:48,780 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.hanoi.2.prop1-func-interl.c [2022-11-23 14:48:48,799 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-23 14:48:48,799 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-23 14:48:48,847 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-23 14:48:48,854 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;@45642e59, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-23 14:48:48,854 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-23 14:48:48,859 INFO L276 IsEmpty]: Start isEmpty. Operand has 11 states, 9 states have (on average 1.4444444444444444) internal successors, (13), 10 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:48:48,865 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-23 14:48:48,865 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:48:48,866 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-11-23 14:48:48,867 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 14:48:48,872 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:48:48,872 INFO L85 PathProgramCache]: Analyzing trace with hash 28698761, now seen corresponding path program 1 times [2022-11-23 14:48:48,886 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-23 14:48:48,886 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [670246942] [2022-11-23 14:48:48,887 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:48:48,887 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 14:48:48,887 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a07f9f3-7916-4eb8-9320-151b884afc15/bin/utaipan-Q6hlc19bkW/mathsat [2022-11-23 14:48:48,895 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a07f9f3-7916-4eb8-9320-151b884afc15/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-23 14:48:48,900 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a07f9f3-7916-4eb8-9320-151b884afc15/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-11-23 14:48:49,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:48:49,421 INFO L263 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 18 conjunts are in the unsatisfiable core [2022-11-23 14:48:49,435 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 14:48:49,664 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 14:48:49,664 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 14:48:49,665 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-23 14:48:49,665 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [670246942] [2022-11-23 14:48:49,666 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [670246942] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:48:49,666 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:48:49,667 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-23 14:48:49,668 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [735059230] [2022-11-23 14:48:49,669 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:48:49,674 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-23 14:48:49,674 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-23 14:48:49,719 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-23 14:48:49,720 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-23 14:48:49,722 INFO L87 Difference]: Start difference. First operand has 11 states, 9 states have (on average 1.4444444444444444) internal successors, (13), 10 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:48:50,130 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:48:50,130 INFO L93 Difference]: Finished difference Result 20 states and 30 transitions. [2022-11-23 14:48:50,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-23 14:48:50,134 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2022-11-23 14:48:50,134 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:48:50,146 INFO L225 Difference]: With dead ends: 20 [2022-11-23 14:48:50,146 INFO L226 Difference]: Without dead ends: 11 [2022-11-23 14:48:50,149 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-23 14:48:50,158 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 4 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s 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, 0.4s IncrementalHoareTripleChecker+Time [2022-11-23 14:48:50,160 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 13 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-23 14:48:50,177 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2022-11-23 14:48:50,191 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 9. [2022-11-23 14:48:50,192 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 8 states have (on average 1.125) internal successors, (9), 8 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:48:50,193 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2022-11-23 14:48:50,198 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 5 [2022-11-23 14:48:50,198 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:48:50,198 INFO L495 AbstractCegarLoop]: Abstraction has 9 states and 9 transitions. [2022-11-23 14:48:50,199 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:48:50,200 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2022-11-23 14:48:50,201 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-23 14:48:50,201 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:48:50,201 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2022-11-23 14:48:50,223 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a07f9f3-7916-4eb8-9320-151b884afc15/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-11-23 14:48:50,435 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a07f9f3-7916-4eb8-9320-151b884afc15/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 14:48:50,436 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 14:48:50,436 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:48:50,436 INFO L85 PathProgramCache]: Analyzing trace with hash 271073635, now seen corresponding path program 1 times [2022-11-23 14:48:50,441 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-23 14:48:50,441 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1350540088] [2022-11-23 14:48:50,441 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:48:50,441 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 14:48:50,442 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a07f9f3-7916-4eb8-9320-151b884afc15/bin/utaipan-Q6hlc19bkW/mathsat [2022-11-23 14:48:50,443 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a07f9f3-7916-4eb8-9320-151b884afc15/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-23 14:48:50,475 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a07f9f3-7916-4eb8-9320-151b884afc15/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-11-23 14:48:51,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:48:51,754 INFO L263 TraceCheckSpWp]: Trace formula consists of 2083 conjuncts, 52 conjunts are in the unsatisfiable core [2022-11-23 14:48:51,777 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 14:48:52,694 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 14:48:52,695 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 14:48:53,616 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 14:48:53,617 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-23 14:48:53,617 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1350540088] [2022-11-23 14:48:53,617 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1350540088] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 14:48:53,618 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1801777318] [2022-11-23 14:48:53,618 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:48:53,619 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-23 14:48:53,619 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a07f9f3-7916-4eb8-9320-151b884afc15/bin/utaipan-Q6hlc19bkW/cvc4 [2022-11-23 14:48:53,625 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a07f9f3-7916-4eb8-9320-151b884afc15/bin/utaipan-Q6hlc19bkW/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-23 14:48:53,651 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a07f9f3-7916-4eb8-9320-151b884afc15/bin/utaipan-Q6hlc19bkW/cvc4 --incremental --print-success --lang smt (4)] Waiting until timeout for monitored process [2022-11-23 14:48:55,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:48:55,986 INFO L263 TraceCheckSpWp]: Trace formula consists of 2083 conjuncts, 240 conjunts are in the unsatisfiable core [2022-11-23 14:48:56,015 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 14:50:41,540 WARN L233 SmtUtils]: Spent 1.66m on a formula simplification. DAG size of input: 187 DAG size of output: 171 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 14:50:41,773 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 14:50:41,774 INFO L328 TraceCheckSpWp]: Computing backward predicates...