./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_Arbiter.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_1fa2a0fe-7fc5-462d-81ff-b1c573742696/bin/uautomizer-QkZJyEgLgS/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fa2a0fe-7fc5-462d-81ff-b1c573742696/bin/uautomizer-QkZJyEgLgS/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fa2a0fe-7fc5-462d-81ff-b1c573742696/bin/uautomizer-QkZJyEgLgS/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fa2a0fe-7fc5-462d-81ff-b1c573742696/bin/uautomizer-QkZJyEgLgS/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_Arbiter.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fa2a0fe-7fc5-462d-81ff-b1c573742696/bin/uautomizer-QkZJyEgLgS/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fa2a0fe-7fc5-462d-81ff-b1c573742696/bin/uautomizer-QkZJyEgLgS --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 68aa30a409d960bbf9135edba3b497aa140aed92035337dcb9292c1552b8943f --- 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 03:57:37,492 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-23 03:57:37,494 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-23 03:57:37,513 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-23 03:57:37,513 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-23 03:57:37,514 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-23 03:57:37,515 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-23 03:57:37,517 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-23 03:57:37,519 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-23 03:57:37,520 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-23 03:57:37,521 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-23 03:57:37,522 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-23 03:57:37,522 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-23 03:57:37,523 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-23 03:57:37,525 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-23 03:57:37,526 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-23 03:57:37,526 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-23 03:57:37,527 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-23 03:57:37,529 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-23 03:57:37,531 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-23 03:57:37,532 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-23 03:57:37,549 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-23 03:57:37,550 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-23 03:57:37,551 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-23 03:57:37,554 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-23 03:57:37,563 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-23 03:57:37,564 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-23 03:57:37,565 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-23 03:57:37,565 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-23 03:57:37,566 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-23 03:57:37,566 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-23 03:57:37,567 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-23 03:57:37,568 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-23 03:57:37,569 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-23 03:57:37,570 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-23 03:57:37,572 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-23 03:57:37,573 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-23 03:57:37,574 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-23 03:57:37,574 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-23 03:57:37,575 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-23 03:57:37,577 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-23 03:57:37,578 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fa2a0fe-7fc5-462d-81ff-b1c573742696/bin/uautomizer-QkZJyEgLgS/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-11-23 03:57:37,612 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-23 03:57:37,613 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-23 03:57:37,614 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-23 03:57:37,614 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-23 03:57:37,615 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-23 03:57:37,615 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-23 03:57:37,616 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-23 03:57:37,616 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-23 03:57:37,616 INFO L138 SettingsManager]: * Use SBE=true [2022-11-23 03:57:37,616 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-23 03:57:37,618 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-23 03:57:37,618 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-23 03:57:37,618 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-23 03:57:37,618 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-23 03:57:37,618 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-23 03:57:37,619 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-23 03:57:37,619 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-23 03:57:37,619 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-23 03:57:37,619 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-23 03:57:37,619 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-23 03:57:37,620 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-23 03:57:37,620 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 03:57:37,620 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-23 03:57:37,620 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-23 03:57:37,621 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-23 03:57:37,621 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-23 03:57:37,621 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-23 03:57:37,621 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-23 03:57:37,621 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-23 03:57:37,622 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-11-23 03:57:37,622 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-23 03:57:37,622 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fa2a0fe-7fc5-462d-81ff-b1c573742696/bin/uautomizer-QkZJyEgLgS/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fa2a0fe-7fc5-462d-81ff-b1c573742696/bin/uautomizer-QkZJyEgLgS Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 68aa30a409d960bbf9135edba3b497aa140aed92035337dcb9292c1552b8943f [2022-11-23 03:57:37,845 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-23 03:57:37,865 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-23 03:57:37,868 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-23 03:57:37,869 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-23 03:57:37,869 INFO L275 PluginConnector]: CDTParser initialized [2022-11-23 03:57:37,871 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fa2a0fe-7fc5-462d-81ff-b1c573742696/bin/uautomizer-QkZJyEgLgS/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_Arbiter.c [2022-11-23 03:57:41,006 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-23 03:57:41,248 INFO L351 CDTParser]: Found 1 translation units. [2022-11-23 03:57:41,248 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fa2a0fe-7fc5-462d-81ff-b1c573742696/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_Arbiter.c [2022-11-23 03:57:41,263 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fa2a0fe-7fc5-462d-81ff-b1c573742696/bin/uautomizer-QkZJyEgLgS/data/fc22a039b/5b38441990774ff2b724a7ab7b571ce6/FLAGf873f7ea1 [2022-11-23 03:57:41,281 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fa2a0fe-7fc5-462d-81ff-b1c573742696/bin/uautomizer-QkZJyEgLgS/data/fc22a039b/5b38441990774ff2b724a7ab7b571ce6 [2022-11-23 03:57:41,284 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-23 03:57:41,286 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-23 03:57:41,288 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-23 03:57:41,288 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-23 03:57:41,292 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-23 03:57:41,293 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:57:41" (1/1) ... [2022-11-23 03:57:41,294 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1ca99543 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:57:41, skipping insertion in model container [2022-11-23 03:57:41,294 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:57:41" (1/1) ... [2022-11-23 03:57:41,302 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-23 03:57:41,357 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-23 03:57:41,523 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_1fa2a0fe-7fc5-462d-81ff-b1c573742696/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_Arbiter.c[1107,1120] [2022-11-23 03:57:41,811 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 03:57:41,829 INFO L203 MainTranslator]: Completed pre-run [2022-11-23 03:57:41,840 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_1fa2a0fe-7fc5-462d-81ff-b1c573742696/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_Arbiter.c[1107,1120] [2022-11-23 03:57:42,042 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 03:57:42,056 INFO L208 MainTranslator]: Completed translation [2022-11-23 03:57:42,056 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:57:42 WrapperNode [2022-11-23 03:57:42,057 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-23 03:57:42,058 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-23 03:57:42,058 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-23 03:57:42,058 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-23 03:57:42,066 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:57:42" (1/1) ... [2022-11-23 03:57:42,092 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:57:42" (1/1) ... [2022-11-23 03:57:42,159 INFO L138 Inliner]: procedures = 11, calls = 3, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 1095 [2022-11-23 03:57:42,160 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-23 03:57:42,161 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-23 03:57:42,161 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-23 03:57:42,161 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-23 03:57:42,172 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:57:42" (1/1) ... [2022-11-23 03:57:42,172 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:57:42" (1/1) ... [2022-11-23 03:57:42,185 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:57:42" (1/1) ... [2022-11-23 03:57:42,185 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:57:42" (1/1) ... [2022-11-23 03:57:42,218 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:57:42" (1/1) ... [2022-11-23 03:57:42,233 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:57:42" (1/1) ... [2022-11-23 03:57:42,257 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:57:42" (1/1) ... [2022-11-23 03:57:42,262 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:57:42" (1/1) ... [2022-11-23 03:57:42,272 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-23 03:57:42,286 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-23 03:57:42,287 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-23 03:57:42,287 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-23 03:57:42,288 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:57:42" (1/1) ... [2022-11-23 03:57:42,298 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 03:57:42,311 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fa2a0fe-7fc5-462d-81ff-b1c573742696/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 03:57:42,331 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fa2a0fe-7fc5-462d-81ff-b1c573742696/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-23 03:57:42,364 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fa2a0fe-7fc5-462d-81ff-b1c573742696/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-23 03:57:42,383 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-23 03:57:42,383 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-23 03:57:42,734 INFO L235 CfgBuilder]: Building ICFG [2022-11-23 03:57:42,736 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-23 03:57:48,548 INFO L276 CfgBuilder]: Performing block encoding [2022-11-23 03:57:48,555 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-23 03:57:48,555 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-23 03:57:48,557 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:57:48 BoogieIcfgContainer [2022-11-23 03:57:48,558 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-23 03:57:48,560 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-23 03:57:48,560 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-23 03:57:48,564 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-23 03:57:48,564 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 03:57:41" (1/3) ... [2022-11-23 03:57:48,565 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@134bc05b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 03:57:48, skipping insertion in model container [2022-11-23 03:57:48,565 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:57:42" (2/3) ... [2022-11-23 03:57:48,565 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@134bc05b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 03:57:48, skipping insertion in model container [2022-11-23 03:57:48,566 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:57:48" (3/3) ... [2022-11-23 03:57:48,567 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.h_Arbiter.c [2022-11-23 03:57:48,587 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-23 03:57:48,587 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-23 03:57:48,635 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-23 03:57:48,643 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@2da31049, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-23 03:57:48,643 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-23 03:57:48,648 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 03:57:48,654 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-23 03:57:48,654 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 03:57:48,655 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-11-23 03:57:48,655 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 03:57:48,661 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:57:48,661 INFO L85 PathProgramCache]: Analyzing trace with hash 28698761, now seen corresponding path program 1 times [2022-11-23 03:57:48,671 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:57:48,672 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2065591978] [2022-11-23 03:57:48,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:57:48,672 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:57:49,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-23 03:57:49,131 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-23 03:57:49,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-23 03:57:49,382 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-23 03:57:49,384 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-23 03:57:49,385 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-23 03:57:49,388 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-23 03:57:49,392 INFO L444 BasicCegarLoop]: Path program histogram: [1] [2022-11-23 03:57:49,397 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-23 03:57:49,440 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2022-11-23 03:57:49,464 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 03:57:49 BoogieIcfgContainer [2022-11-23 03:57:49,465 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-23 03:57:49,467 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-23 03:57:49,467 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-23 03:57:49,468 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-23 03:57:49,468 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:57:48" (3/4) ... [2022-11-23 03:57:49,473 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-23 03:57:49,473 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-23 03:57:49,475 INFO L158 Benchmark]: Toolchain (without parser) took 8188.56ms. Allocated memory was 130.0MB in the beginning and 463.5MB in the end (delta: 333.4MB). Free memory was 83.1MB in the beginning and 396.8MB in the end (delta: -313.7MB). Peak memory consumption was 22.3MB. Max. memory is 16.1GB. [2022-11-23 03:57:49,476 INFO L158 Benchmark]: CDTParser took 0.23ms. Allocated memory is still 98.6MB. Free memory is still 41.2MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-23 03:57:49,477 INFO L158 Benchmark]: CACSL2BoogieTranslator took 769.56ms. Allocated memory was 130.0MB in the beginning and 174.1MB in the end (delta: 44.0MB). Free memory was 82.7MB in the beginning and 131.9MB in the end (delta: -49.2MB). Peak memory consumption was 32.4MB. Max. memory is 16.1GB. [2022-11-23 03:57:49,478 INFO L158 Benchmark]: Boogie Procedure Inliner took 102.25ms. Allocated memory is still 174.1MB. Free memory was 131.9MB in the beginning and 122.5MB in the end (delta: 9.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-23 03:57:49,484 INFO L158 Benchmark]: Boogie Preprocessor took 124.88ms. Allocated memory is still 174.1MB. Free memory was 122.5MB in the beginning and 117.2MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-23 03:57:49,485 INFO L158 Benchmark]: RCFGBuilder took 6271.51ms. Allocated memory was 174.1MB in the beginning and 463.5MB in the end (delta: 289.4MB). Free memory was 117.2MB in the beginning and 183.1MB in the end (delta: -65.9MB). Peak memory consumption was 232.7MB. Max. memory is 16.1GB. [2022-11-23 03:57:49,487 INFO L158 Benchmark]: TraceAbstraction took 904.71ms. Allocated memory is still 463.5MB. Free memory was 183.1MB in the beginning and 397.8MB in the end (delta: -214.7MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-23 03:57:49,488 INFO L158 Benchmark]: Witness Printer took 6.40ms. Allocated memory is still 463.5MB. Free memory was 397.8MB in the beginning and 396.8MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-23 03:57:49,497 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23ms. Allocated memory is still 98.6MB. Free memory is still 41.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 769.56ms. Allocated memory was 130.0MB in the beginning and 174.1MB in the end (delta: 44.0MB). Free memory was 82.7MB in the beginning and 131.9MB in the end (delta: -49.2MB). Peak memory consumption was 32.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 102.25ms. Allocated memory is still 174.1MB. Free memory was 131.9MB in the beginning and 122.5MB in the end (delta: 9.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Preprocessor took 124.88ms. Allocated memory is still 174.1MB. Free memory was 122.5MB in the beginning and 117.2MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 6271.51ms. Allocated memory was 174.1MB in the beginning and 463.5MB in the end (delta: 289.4MB). Free memory was 117.2MB in the beginning and 183.1MB in the end (delta: -65.9MB). Peak memory consumption was 232.7MB. Max. memory is 16.1GB. * TraceAbstraction took 904.71ms. Allocated memory is still 463.5MB. Free memory was 183.1MB in the beginning and 397.8MB in the end (delta: -214.7MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 6.40ms. Allocated memory is still 463.5MB. Free memory was 397.8MB in the beginning and 396.8MB 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.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 240, overapproximation of bitwiseOr at line 220, overapproximation of bitwiseAnd at line 189. 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_6 mask_SORT_6 = (SORT_6)-1 >> (sizeof(SORT_6) * 8 - 32); [L29] const SORT_6 msb_SORT_6 = (SORT_6)1 << (32 - 1); [L31] const SORT_45 mask_SORT_45 = (SORT_45)-1 >> (sizeof(SORT_45) * 8 - 2); [L32] const SORT_45 msb_SORT_45 = (SORT_45)1 << (2 - 1); [L34] const SORT_50 mask_SORT_50 = (SORT_50)-1 >> (sizeof(SORT_50) * 8 - 30); [L35] const SORT_50 msb_SORT_50 = (SORT_50)1 << (30 - 1); [L37] const SORT_1 var_3 = 0; [L38] const SORT_6 var_8 = 1; [L39] const SORT_1 var_32 = 1; [L40] const SORT_6 var_46 = 3; [L41] const SORT_45 var_47 = 0; [L42] const SORT_50 var_51 = 0; [L43] const SORT_45 var_72 = 1; [L44] const SORT_45 var_77 = 2; [L46] SORT_1 input_2; [L47] SORT_1 input_85; [L48] SORT_1 input_95; [L49] SORT_1 input_105; [L50] SORT_1 input_113; [L51] SORT_1 input_114; [L52] SORT_1 input_115; [L53] SORT_1 input_125; [L54] SORT_1 input_132; [L55] SORT_1 input_133; [L56] SORT_1 input_134; [L57] SORT_1 input_144; [L58] SORT_1 input_151; [L59] SORT_1 input_152; [L60] SORT_1 input_153; [L61] SORT_1 input_163; [L62] SORT_45 input_170; [L63] SORT_1 input_181; [L64] SORT_1 input_187; [L65] SORT_45 input_194; [L66] SORT_45 input_200; [L67] SORT_45 input_204; [L68] SORT_1 input_214; [L69] SORT_1 input_220; [L70] SORT_45 input_227; [L71] SORT_45 input_233; [L72] SORT_45 input_237; [L73] SORT_1 input_247; [L74] SORT_1 input_253; [L75] SORT_45 input_260; [L76] SORT_45 input_266; [L77] SORT_45 input_270; [L78] SORT_45 input_280; [L79] SORT_45 input_281; [L80] SORT_45 input_282; [L81] SORT_45 input_292; [L82] SORT_45 input_302; [L83] SORT_45 input_303; [L84] SORT_45 input_304; [L85] SORT_45 input_314; [L86] SORT_45 input_324; [L87] SORT_45 input_325; [L88] SORT_45 input_326; [L89] SORT_45 input_336; [L91] SORT_1 state_4 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L92] SORT_1 state_10 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L93] SORT_1 state_17 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L94] SORT_1 state_36 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L95] SORT_1 state_38 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L96] SORT_1 state_41 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L97] SORT_45 state_48 = __VERIFIER_nondet_uchar() & mask_SORT_45; [L98] SORT_1 state_56 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L99] SORT_45 state_58 = __VERIFIER_nondet_uchar() & mask_SORT_45; [L100] SORT_1 state_60 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L101] SORT_45 state_62 = __VERIFIER_nondet_uchar() & mask_SORT_45; [L102] SORT_1 state_64 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L103] SORT_45 state_66 = __VERIFIER_nondet_uchar() & mask_SORT_45; [L104] SORT_45 state_70 = __VERIFIER_nondet_uchar() & mask_SORT_45; [L105] SORT_45 state_75 = __VERIFIER_nondet_uchar() & mask_SORT_45; [L106] SORT_45 state_80 = __VERIFIER_nondet_uchar() & mask_SORT_45; [L108] SORT_1 init_5_arg_1 = var_3; [L109] state_4 = init_5_arg_1 [L110] SORT_1 init_11_arg_1 = var_3; [L111] state_10 = init_11_arg_1 [L112] SORT_1 init_18_arg_1 = var_3; [L113] state_17 = init_18_arg_1 [L114] SORT_1 init_37_arg_1 = var_32; [L115] state_36 = init_37_arg_1 [L116] SORT_1 init_39_arg_1 = var_32; [L117] state_38 = init_39_arg_1 [L118] SORT_1 init_42_arg_1 = var_32; [L119] state_41 = init_42_arg_1 [L120] SORT_45 init_49_arg_1 = var_47; [L121] state_48 = init_49_arg_1 [L122] SORT_1 init_57_arg_1 = var_3; [L123] state_56 = init_57_arg_1 [L124] SORT_45 init_59_arg_1 = var_47; [L125] state_58 = init_59_arg_1 [L126] SORT_1 init_61_arg_1 = var_3; [L127] state_60 = init_61_arg_1 [L128] SORT_45 init_63_arg_1 = var_47; [L129] state_62 = init_63_arg_1 [L130] SORT_1 init_65_arg_1 = var_3; [L131] state_64 = init_65_arg_1 [L132] SORT_45 init_67_arg_1 = var_47; [L133] state_66 = init_67_arg_1 [L134] SORT_45 init_71_arg_1 = var_47; [L135] state_70 = init_71_arg_1 [L136] SORT_45 init_76_arg_1 = var_47; [L137] state_75 = init_76_arg_1 [L138] SORT_45 init_81_arg_1 = var_47; [L139] state_80 = init_81_arg_1 VAL [init_11_arg_1=0, init_18_arg_1=0, init_37_arg_1=1, init_39_arg_1=1, init_42_arg_1=1, init_49_arg_1=0, init_57_arg_1=0, init_59_arg_1=0, init_5_arg_1=0, init_61_arg_1=0, init_63_arg_1=0, init_65_arg_1=0, init_67_arg_1=0, init_71_arg_1=0, init_76_arg_1=0, init_81_arg_1=0, mask_SORT_1=1, mask_SORT_45=3, mask_SORT_50=4294967295, mask_SORT_6=4294967295, msb_SORT_1=1, msb_SORT_45=2, msb_SORT_50=536870912, msb_SORT_6=2147483648, state_10=0, state_17=0, state_36=1, state_38=1, state_4=0, state_41=1, state_48=0, state_56=0, state_58=0, state_60=0, state_62=0, state_64=0, state_66=0, state_70=0, state_75=0, state_80=0, var_3=0, var_32=1, var_46=3, var_47=0, var_51=0, var_72=1, var_77=2, var_8=1] [L142] input_2 = __VERIFIER_nondet_uchar() [L143] input_85 = __VERIFIER_nondet_uchar() [L144] input_95 = __VERIFIER_nondet_uchar() [L145] input_105 = __VERIFIER_nondet_uchar() [L146] input_113 = __VERIFIER_nondet_uchar() [L147] input_114 = __VERIFIER_nondet_uchar() [L148] input_115 = __VERIFIER_nondet_uchar() [L149] input_125 = __VERIFIER_nondet_uchar() [L150] input_132 = __VERIFIER_nondet_uchar() [L151] input_133 = __VERIFIER_nondet_uchar() [L152] input_134 = __VERIFIER_nondet_uchar() [L153] input_144 = __VERIFIER_nondet_uchar() [L154] input_151 = __VERIFIER_nondet_uchar() [L155] input_152 = __VERIFIER_nondet_uchar() [L156] input_153 = __VERIFIER_nondet_uchar() [L157] input_163 = __VERIFIER_nondet_uchar() [L158] input_170 = __VERIFIER_nondet_uchar() [L159] input_181 = __VERIFIER_nondet_uchar() [L160] input_187 = __VERIFIER_nondet_uchar() [L161] input_194 = __VERIFIER_nondet_uchar() [L162] input_200 = __VERIFIER_nondet_uchar() [L163] input_204 = __VERIFIER_nondet_uchar() [L164] input_214 = __VERIFIER_nondet_uchar() [L165] input_220 = __VERIFIER_nondet_uchar() [L166] input_227 = __VERIFIER_nondet_uchar() [L167] input_233 = __VERIFIER_nondet_uchar() [L168] input_237 = __VERIFIER_nondet_uchar() [L169] input_247 = __VERIFIER_nondet_uchar() [L170] input_253 = __VERIFIER_nondet_uchar() [L171] input_260 = __VERIFIER_nondet_uchar() [L172] input_266 = __VERIFIER_nondet_uchar() [L173] input_270 = __VERIFIER_nondet_uchar() [L174] input_280 = __VERIFIER_nondet_uchar() [L175] input_281 = __VERIFIER_nondet_uchar() [L176] input_282 = __VERIFIER_nondet_uchar() [L177] input_292 = __VERIFIER_nondet_uchar() [L178] input_302 = __VERIFIER_nondet_uchar() [L179] input_303 = __VERIFIER_nondet_uchar() [L180] input_304 = __VERIFIER_nondet_uchar() [L181] input_314 = __VERIFIER_nondet_uchar() [L182] input_324 = __VERIFIER_nondet_uchar() [L183] input_325 = __VERIFIER_nondet_uchar() [L184] input_326 = __VERIFIER_nondet_uchar() [L185] input_336 = __VERIFIER_nondet_uchar() [L188] SORT_1 var_7_arg_0 = state_4; [L189] var_7_arg_0 = var_7_arg_0 & mask_SORT_1 [L190] SORT_6 var_7 = var_7_arg_0; [L191] SORT_6 var_9_arg_0 = var_7; [L192] SORT_6 var_9_arg_1 = var_8; [L193] SORT_1 var_9 = var_9_arg_0 == var_9_arg_1; [L194] SORT_1 var_12_arg_0 = state_10; [L195] var_12_arg_0 = var_12_arg_0 & mask_SORT_1 [L196] SORT_6 var_12 = var_12_arg_0; [L197] SORT_6 var_13_arg_0 = var_12; [L198] SORT_6 var_13_arg_1 = var_8; [L199] SORT_1 var_13 = var_13_arg_0 == var_13_arg_1; [L200] SORT_1 var_14_arg_0 = var_9; [L201] SORT_1 var_14_arg_1 = var_13; [L202] SORT_1 var_14 = var_14_arg_0 & var_14_arg_1; [L203] SORT_1 var_15_arg_0 = state_10; [L204] var_15_arg_0 = var_15_arg_0 & mask_SORT_1 [L205] SORT_6 var_15 = var_15_arg_0; [L206] SORT_6 var_16_arg_0 = var_15; [L207] SORT_6 var_16_arg_1 = var_8; [L208] SORT_1 var_16 = var_16_arg_0 == var_16_arg_1; [L209] SORT_1 var_19_arg_0 = state_17; [L210] var_19_arg_0 = var_19_arg_0 & mask_SORT_1 [L211] SORT_6 var_19 = var_19_arg_0; [L212] SORT_6 var_20_arg_0 = var_19; [L213] SORT_6 var_20_arg_1 = var_8; [L214] SORT_1 var_20 = var_20_arg_0 == var_20_arg_1; [L215] SORT_1 var_21_arg_0 = var_16; [L216] SORT_1 var_21_arg_1 = var_20; [L217] SORT_1 var_21 = var_21_arg_0 & var_21_arg_1; [L218] SORT_1 var_22_arg_0 = var_14; [L219] SORT_1 var_22_arg_1 = var_21; [L220] SORT_1 var_22 = var_22_arg_0 | var_22_arg_1; [L221] SORT_1 var_23_arg_0 = state_17; [L222] var_23_arg_0 = var_23_arg_0 & mask_SORT_1 [L223] SORT_6 var_23 = var_23_arg_0; [L224] SORT_6 var_24_arg_0 = var_23; [L225] SORT_6 var_24_arg_1 = var_8; [L226] SORT_1 var_24 = var_24_arg_0 == var_24_arg_1; [L227] SORT_1 var_25_arg_0 = state_4; [L228] var_25_arg_0 = var_25_arg_0 & mask_SORT_1 [L229] SORT_6 var_25 = var_25_arg_0; [L230] SORT_6 var_26_arg_0 = var_25; [L231] SORT_6 var_26_arg_1 = var_8; [L232] SORT_1 var_26 = var_26_arg_0 == var_26_arg_1; [L233] SORT_1 var_27_arg_0 = var_24; [L234] SORT_1 var_27_arg_1 = var_26; [L235] SORT_1 var_27 = var_27_arg_0 & var_27_arg_1; [L236] SORT_1 var_28_arg_0 = var_22; [L237] SORT_1 var_28_arg_1 = var_27; [L238] SORT_1 var_28 = var_28_arg_0 | var_28_arg_1; [L239] SORT_1 var_29_arg_0 = var_28; [L240] SORT_1 var_29 = ~var_29_arg_0; [L241] SORT_1 var_33_arg_0 = var_29; [L242] SORT_1 var_33 = ~var_33_arg_0; [L243] SORT_1 var_34_arg_0 = var_32; [L244] SORT_1 var_34_arg_1 = var_33; [L245] SORT_1 var_34 = var_34_arg_0 & var_34_arg_1; [L246] var_34 = var_34 & mask_SORT_1 [L247] SORT_1 bad_35_arg_0 = var_34; [L248] CALL __VERIFIER_assert(!(bad_35_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, 11 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.8s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=11occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 5 NumberOfCodeBlocks, 5 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-11-23 03:57:49,528 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fa2a0fe-7fc5-462d-81ff-b1c573742696/bin/uautomizer-QkZJyEgLgS/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_1fa2a0fe-7fc5-462d-81ff-b1c573742696/bin/uautomizer-QkZJyEgLgS/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fa2a0fe-7fc5-462d-81ff-b1c573742696/bin/uautomizer-QkZJyEgLgS/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fa2a0fe-7fc5-462d-81ff-b1c573742696/bin/uautomizer-QkZJyEgLgS/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fa2a0fe-7fc5-462d-81ff-b1c573742696/bin/uautomizer-QkZJyEgLgS/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_Arbiter.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fa2a0fe-7fc5-462d-81ff-b1c573742696/bin/uautomizer-QkZJyEgLgS/config/svcomp-Reach-64bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fa2a0fe-7fc5-462d-81ff-b1c573742696/bin/uautomizer-QkZJyEgLgS --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 68aa30a409d960bbf9135edba3b497aa140aed92035337dcb9292c1552b8943f --- 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 03:57:52,012 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-23 03:57:52,014 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-23 03:57:52,050 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-23 03:57:52,050 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-23 03:57:52,051 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-23 03:57:52,053 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-23 03:57:52,055 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-23 03:57:52,065 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-23 03:57:52,066 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-23 03:57:52,067 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-23 03:57:52,068 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-23 03:57:52,069 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-23 03:57:52,070 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-23 03:57:52,072 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-23 03:57:52,073 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-23 03:57:52,074 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-23 03:57:52,075 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-23 03:57:52,078 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-23 03:57:52,088 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-23 03:57:52,090 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-23 03:57:52,091 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-23 03:57:52,093 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-23 03:57:52,094 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-23 03:57:52,099 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-23 03:57:52,100 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-23 03:57:52,100 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-23 03:57:52,101 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-23 03:57:52,102 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-23 03:57:52,104 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-23 03:57:52,104 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-23 03:57:52,105 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-23 03:57:52,107 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-23 03:57:52,108 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-23 03:57:52,109 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-23 03:57:52,110 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-23 03:57:52,111 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-23 03:57:52,111 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-23 03:57:52,112 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-23 03:57:52,113 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-23 03:57:52,114 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-23 03:57:52,121 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fa2a0fe-7fc5-462d-81ff-b1c573742696/bin/uautomizer-QkZJyEgLgS/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2022-11-23 03:57:52,163 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-23 03:57:52,167 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-23 03:57:52,169 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-23 03:57:52,169 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-23 03:57:52,170 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-23 03:57:52,171 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-23 03:57:52,172 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-23 03:57:52,172 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-23 03:57:52,172 INFO L138 SettingsManager]: * Use SBE=true [2022-11-23 03:57:52,173 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-23 03:57:52,174 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-23 03:57:52,174 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-23 03:57:52,175 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-23 03:57:52,175 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-23 03:57:52,175 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-23 03:57:52,175 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-23 03:57:52,176 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-23 03:57:52,176 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-23 03:57:52,176 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-23 03:57:52,177 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-23 03:57:52,177 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-23 03:57:52,178 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-23 03:57:52,178 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-23 03:57:52,178 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 03:57:52,179 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-23 03:57:52,179 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-23 03:57:52,179 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-23 03:57:52,180 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-11-23 03:57:52,180 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-23 03:57:52,180 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-23 03:57:52,181 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-23 03:57:52,181 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-11-23 03:57:52,182 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-23 03:57:52,182 INFO L138 SettingsManager]: * Logic for external solver=AUFBV [2022-11-23 03:57:52,182 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fa2a0fe-7fc5-462d-81ff-b1c573742696/bin/uautomizer-QkZJyEgLgS/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fa2a0fe-7fc5-462d-81ff-b1c573742696/bin/uautomizer-QkZJyEgLgS Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 68aa30a409d960bbf9135edba3b497aa140aed92035337dcb9292c1552b8943f [2022-11-23 03:57:52,623 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-23 03:57:52,656 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-23 03:57:52,659 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-23 03:57:52,661 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-23 03:57:52,661 INFO L275 PluginConnector]: CDTParser initialized [2022-11-23 03:57:52,663 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fa2a0fe-7fc5-462d-81ff-b1c573742696/bin/uautomizer-QkZJyEgLgS/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_Arbiter.c [2022-11-23 03:57:55,832 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-23 03:57:56,216 INFO L351 CDTParser]: Found 1 translation units. [2022-11-23 03:57:56,217 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fa2a0fe-7fc5-462d-81ff-b1c573742696/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_Arbiter.c [2022-11-23 03:57:56,244 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fa2a0fe-7fc5-462d-81ff-b1c573742696/bin/uautomizer-QkZJyEgLgS/data/b12577957/8089382543e34b1382cee0feb0e54267/FLAG11f3a1526 [2022-11-23 03:57:56,272 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fa2a0fe-7fc5-462d-81ff-b1c573742696/bin/uautomizer-QkZJyEgLgS/data/b12577957/8089382543e34b1382cee0feb0e54267 [2022-11-23 03:57:56,278 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-23 03:57:56,280 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-23 03:57:56,287 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-23 03:57:56,287 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-23 03:57:56,293 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-23 03:57:56,294 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:57:56" (1/1) ... [2022-11-23 03:57:56,295 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3d014ff0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:57:56, skipping insertion in model container [2022-11-23 03:57:56,295 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:57:56" (1/1) ... [2022-11-23 03:57:56,303 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-23 03:57:56,373 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-23 03:57:56,638 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_1fa2a0fe-7fc5-462d-81ff-b1c573742696/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_Arbiter.c[1107,1120] [2022-11-23 03:57:56,988 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 03:57:57,008 INFO L203 MainTranslator]: Completed pre-run [2022-11-23 03:57:57,019 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_1fa2a0fe-7fc5-462d-81ff-b1c573742696/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_Arbiter.c[1107,1120] [2022-11-23 03:57:57,184 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 03:57:57,200 INFO L208 MainTranslator]: Completed translation [2022-11-23 03:57:57,200 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:57:57 WrapperNode [2022-11-23 03:57:57,201 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-23 03:57:57,202 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-23 03:57:57,202 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-23 03:57:57,202 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-23 03:57:57,210 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:57:57" (1/1) ... [2022-11-23 03:57:57,252 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:57:57" (1/1) ... [2022-11-23 03:57:57,314 INFO L138 Inliner]: procedures = 11, calls = 3, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 1095 [2022-11-23 03:57:57,314 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-23 03:57:57,315 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-23 03:57:57,315 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-23 03:57:57,315 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-23 03:57:57,336 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:57:57" (1/1) ... [2022-11-23 03:57:57,336 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:57:57" (1/1) ... [2022-11-23 03:57:57,364 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:57:57" (1/1) ... [2022-11-23 03:57:57,364 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:57:57" (1/1) ... [2022-11-23 03:57:57,400 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:57:57" (1/1) ... [2022-11-23 03:57:57,432 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:57:57" (1/1) ... [2022-11-23 03:57:57,437 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:57:57" (1/1) ... [2022-11-23 03:57:57,441 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:57:57" (1/1) ... [2022-11-23 03:57:57,461 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-23 03:57:57,462 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-23 03:57:57,465 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-23 03:57:57,465 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-23 03:57:57,469 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:57:57" (1/1) ... [2022-11-23 03:57:57,482 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 03:57:57,499 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fa2a0fe-7fc5-462d-81ff-b1c573742696/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 03:57:57,522 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fa2a0fe-7fc5-462d-81ff-b1c573742696/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-23 03:57:57,562 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fa2a0fe-7fc5-462d-81ff-b1c573742696/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-23 03:57:57,587 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-23 03:57:57,587 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-23 03:57:58,017 INFO L235 CfgBuilder]: Building ICFG [2022-11-23 03:57:58,019 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-23 03:57:59,410 INFO L276 CfgBuilder]: Performing block encoding [2022-11-23 03:57:59,418 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-23 03:57:59,420 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-23 03:57:59,422 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:57:59 BoogieIcfgContainer [2022-11-23 03:57:59,422 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-23 03:57:59,425 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-23 03:57:59,425 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-23 03:57:59,429 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-23 03:57:59,429 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 03:57:56" (1/3) ... [2022-11-23 03:57:59,431 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5940b13d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 03:57:59, skipping insertion in model container [2022-11-23 03:57:59,432 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:57:57" (2/3) ... [2022-11-23 03:57:59,433 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5940b13d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 03:57:59, skipping insertion in model container [2022-11-23 03:57:59,433 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:57:59" (3/3) ... [2022-11-23 03:57:59,434 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.h_Arbiter.c [2022-11-23 03:57:59,466 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-23 03:57:59,466 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-23 03:57:59,531 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-23 03:57:59,539 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@69d9efe7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-23 03:57:59,540 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-23 03:57:59,544 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 03:57:59,550 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-23 03:57:59,551 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 03:57:59,551 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-11-23 03:57:59,552 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 03:57:59,560 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:57:59,560 INFO L85 PathProgramCache]: Analyzing trace with hash 28698761, now seen corresponding path program 1 times [2022-11-23 03:57:59,577 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-23 03:57:59,578 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1147577588] [2022-11-23 03:57:59,578 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:57:59,578 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 03:57:59,579 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fa2a0fe-7fc5-462d-81ff-b1c573742696/bin/uautomizer-QkZJyEgLgS/mathsat [2022-11-23 03:57:59,588 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fa2a0fe-7fc5-462d-81ff-b1c573742696/bin/uautomizer-QkZJyEgLgS/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 03:57:59,621 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fa2a0fe-7fc5-462d-81ff-b1c573742696/bin/uautomizer-QkZJyEgLgS/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 03:57:59,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:57:59,927 INFO L263 TraceCheckSpWp]: Trace formula consists of 152 conjuncts, 44 conjunts are in the unsatisfiable core [2022-11-23 03:57:59,937 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 03:58:00,175 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 03:58:00,176 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 03:58:00,177 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-23 03:58:00,177 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1147577588] [2022-11-23 03:58:00,178 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1147577588] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 03:58:00,178 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 03:58:00,178 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-23 03:58:00,180 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1521635372] [2022-11-23 03:58:00,181 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 03:58:00,186 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-23 03:58:00,186 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-23 03:58:00,217 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-23 03:58:00,218 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-23 03:58:00,220 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 03:58:00,379 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 03:58:00,380 INFO L93 Difference]: Finished difference Result 20 states and 30 transitions. [2022-11-23 03:58:00,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-23 03:58:00,382 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 03:58:00,383 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 03:58:00,392 INFO L225 Difference]: With dead ends: 20 [2022-11-23 03:58:00,392 INFO L226 Difference]: Without dead ends: 11 [2022-11-23 03:58:00,395 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 03:58:00,400 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 4 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 13 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-23 03:58:00,401 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 13 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-23 03:58:00,423 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2022-11-23 03:58:00,436 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 9. [2022-11-23 03:58:00,437 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 03:58:00,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2022-11-23 03:58:00,439 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 5 [2022-11-23 03:58:00,439 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 03:58:00,439 INFO L495 AbstractCegarLoop]: Abstraction has 9 states and 9 transitions. [2022-11-23 03:58:00,440 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 03:58:00,440 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2022-11-23 03:58:00,440 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-23 03:58:00,440 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 03:58:00,441 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2022-11-23 03:58:00,455 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fa2a0fe-7fc5-462d-81ff-b1c573742696/bin/uautomizer-QkZJyEgLgS/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 03:58:00,654 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fa2a0fe-7fc5-462d-81ff-b1c573742696/bin/uautomizer-QkZJyEgLgS/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 03:58:00,655 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 03:58:00,656 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:58:00,657 INFO L85 PathProgramCache]: Analyzing trace with hash 271073635, now seen corresponding path program 1 times [2022-11-23 03:58:00,659 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-23 03:58:00,660 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [342419526] [2022-11-23 03:58:00,660 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:58:00,661 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 03:58:00,662 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fa2a0fe-7fc5-462d-81ff-b1c573742696/bin/uautomizer-QkZJyEgLgS/mathsat [2022-11-23 03:58:00,663 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fa2a0fe-7fc5-462d-81ff-b1c573742696/bin/uautomizer-QkZJyEgLgS/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 03:58:00,706 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fa2a0fe-7fc5-462d-81ff-b1c573742696/bin/uautomizer-QkZJyEgLgS/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 03:58:01,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:58:01,403 INFO L263 TraceCheckSpWp]: Trace formula consists of 1036 conjuncts, 79 conjunts are in the unsatisfiable core [2022-11-23 03:58:01,416 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 03:58:01,987 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 03:58:01,987 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 03:58:05,733 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 03:58:05,734 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-23 03:58:05,734 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [342419526] [2022-11-23 03:58:05,735 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [342419526] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 03:58:05,736 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-23 03:58:05,736 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2022-11-23 03:58:05,740 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [97232142] [2022-11-23 03:58:05,741 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-23 03:58:05,743 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-23 03:58:05,743 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-23 03:58:05,744 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-23 03:58:05,744 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2022-11-23 03:58:05,745 INFO L87 Difference]: Start difference. First operand 9 states and 9 transitions. Second operand has 8 states, 8 states have (on average 1.75) internal successors, (14), 8 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:58:06,059 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 03:58:06,059 INFO L93 Difference]: Finished difference Result 16 states and 16 transitions. [2022-11-23 03:58:06,060 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-23 03:58:06,060 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 1.75) internal successors, (14), 8 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2022-11-23 03:58:06,060 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 03:58:06,060 INFO L225 Difference]: With dead ends: 16 [2022-11-23 03:58:06,061 INFO L226 Difference]: Without dead ends: 14 [2022-11-23 03:58:06,061 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2022-11-23 03:58:06,062 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 13 mSDsluCounter, 11 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 15 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-23 03:58:06,063 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 15 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-23 03:58:06,064 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2022-11-23 03:58:06,066 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 12. [2022-11-23 03:58:06,067 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12 states, 11 states have (on average 1.0909090909090908) internal successors, (12), 11 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:58:06,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 12 transitions. [2022-11-23 03:58:06,067 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 12 transitions. Word has length 8 [2022-11-23 03:58:06,068 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 03:58:06,068 INFO L495 AbstractCegarLoop]: Abstraction has 12 states and 12 transitions. [2022-11-23 03:58:06,068 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 1.75) internal successors, (14), 8 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:58:06,068 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 12 transitions. [2022-11-23 03:58:06,069 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-23 03:58:06,069 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 03:58:06,069 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1] [2022-11-23 03:58:06,097 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fa2a0fe-7fc5-462d-81ff-b1c573742696/bin/uautomizer-QkZJyEgLgS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2022-11-23 03:58:06,269 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fa2a0fe-7fc5-462d-81ff-b1c573742696/bin/uautomizer-QkZJyEgLgS/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 03:58:06,270 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 03:58:06,270 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:58:06,270 INFO L85 PathProgramCache]: Analyzing trace with hash 1020920393, now seen corresponding path program 2 times [2022-11-23 03:58:06,273 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-23 03:58:06,273 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1625021768] [2022-11-23 03:58:06,274 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-23 03:58:06,274 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 03:58:06,274 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fa2a0fe-7fc5-462d-81ff-b1c573742696/bin/uautomizer-QkZJyEgLgS/mathsat [2022-11-23 03:58:06,297 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fa2a0fe-7fc5-462d-81ff-b1c573742696/bin/uautomizer-QkZJyEgLgS/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 03:58:06,320 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fa2a0fe-7fc5-462d-81ff-b1c573742696/bin/uautomizer-QkZJyEgLgS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2022-11-23 03:58:07,291 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-23 03:58:07,292 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-23 03:58:07,350 INFO L263 TraceCheckSpWp]: Trace formula consists of 1920 conjuncts, 185 conjunts are in the unsatisfiable core [2022-11-23 03:58:07,368 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 03:58:09,028 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:58:09,028 INFO L328 TraceCheckSpWp]: Computing backward predicates...