./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_arrays_vsaR_p06.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6b4ec56b 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_57804e80-cbfc-4e71-8407-55df585a8263/bin/uautomizer-ug76WZFUDN/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57804e80-cbfc-4e71-8407-55df585a8263/bin/uautomizer-ug76WZFUDN/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57804e80-cbfc-4e71-8407-55df585a8263/bin/uautomizer-ug76WZFUDN/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57804e80-cbfc-4e71-8407-55df585a8263/bin/uautomizer-ug76WZFUDN/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_arrays_vsaR_p06.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57804e80-cbfc-4e71-8407-55df585a8263/bin/uautomizer-ug76WZFUDN/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57804e80-cbfc-4e71-8407-55df585a8263/bin/uautomizer-ug76WZFUDN --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 40a9698cd1f506d6a856b33d872fce85f12f9f3b9fe0d2e800ed6327fc1a6049 --- 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-6b4ec56 [2022-11-20 11:29:30,489 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 11:29:30,491 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 11:29:30,515 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 11:29:30,519 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 11:29:30,523 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 11:29:30,524 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 11:29:30,526 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 11:29:30,528 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 11:29:30,535 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 11:29:30,536 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 11:29:30,537 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 11:29:30,537 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 11:29:30,538 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 11:29:30,539 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 11:29:30,540 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 11:29:30,541 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 11:29:30,542 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 11:29:30,544 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 11:29:30,546 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 11:29:30,553 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 11:29:30,556 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 11:29:30,558 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 11:29:30,559 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 11:29:30,572 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 11:29:30,575 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 11:29:30,576 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 11:29:30,578 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 11:29:30,578 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 11:29:30,580 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 11:29:30,581 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 11:29:30,582 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 11:29:30,583 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 11:29:30,585 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 11:29:30,587 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 11:29:30,587 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 11:29:30,588 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 11:29:30,588 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 11:29:30,588 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 11:29:30,591 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 11:29:30,592 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 11:29:30,593 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57804e80-cbfc-4e71-8407-55df585a8263/bin/uautomizer-ug76WZFUDN/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-11-20 11:29:30,632 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 11:29:30,633 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 11:29:30,633 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 11:29:30,634 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 11:29:30,635 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 11:29:30,635 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-20 11:29:30,636 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-20 11:29:30,636 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-20 11:29:30,636 INFO L138 SettingsManager]: * Use SBE=true [2022-11-20 11:29:30,636 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 11:29:30,638 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-20 11:29:30,638 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 11:29:30,638 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 11:29:30,638 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 11:29:30,639 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 11:29:30,639 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 11:29:30,639 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 11:29:30,639 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 11:29:30,640 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 11:29:30,640 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-20 11:29:30,640 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-20 11:29:30,640 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 11:29:30,641 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 11:29:30,641 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 11:29:30,641 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 11:29:30,641 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-20 11:29:30,642 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-20 11:29:30,642 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-20 11:29:30,643 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-20 11:29:30,643 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 11:29:30,643 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57804e80-cbfc-4e71-8407-55df585a8263/bin/uautomizer-ug76WZFUDN/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57804e80-cbfc-4e71-8407-55df585a8263/bin/uautomizer-ug76WZFUDN Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 40a9698cd1f506d6a856b33d872fce85f12f9f3b9fe0d2e800ed6327fc1a6049 [2022-11-20 11:29:30,941 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 11:29:30,978 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 11:29:30,980 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 11:29:30,981 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 11:29:30,982 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 11:29:30,983 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57804e80-cbfc-4e71-8407-55df585a8263/bin/uautomizer-ug76WZFUDN/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_arrays_vsaR_p06.c [2022-11-20 11:29:34,060 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 11:29:34,311 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 11:29:34,327 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57804e80-cbfc-4e71-8407-55df585a8263/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_arrays_vsaR_p06.c [2022-11-20 11:29:34,339 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57804e80-cbfc-4e71-8407-55df585a8263/bin/uautomizer-ug76WZFUDN/data/11810d517/633b36ef28434c1d8366074148075ec2/FLAG18e38ebbe [2022-11-20 11:29:34,357 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57804e80-cbfc-4e71-8407-55df585a8263/bin/uautomizer-ug76WZFUDN/data/11810d517/633b36ef28434c1d8366074148075ec2 [2022-11-20 11:29:34,363 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 11:29:34,365 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 11:29:34,368 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 11:29:34,368 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 11:29:34,372 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 11:29:34,373 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 11:29:34" (1/1) ... [2022-11-20 11:29:34,374 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1753300e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:29:34, skipping insertion in model container [2022-11-20 11:29:34,374 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 11:29:34" (1/1) ... [2022-11-20 11:29:34,382 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 11:29:34,443 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 11:29:34,653 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_57804e80-cbfc-4e71-8407-55df585a8263/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_arrays_vsaR_p06.c[1107,1120] [2022-11-20 11:29:34,916 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 11:29:34,928 INFO L203 MainTranslator]: Completed pre-run [2022-11-20 11:29:34,945 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_57804e80-cbfc-4e71-8407-55df585a8263/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_arrays_vsaR_p06.c[1107,1120] [2022-11-20 11:29:35,072 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 11:29:35,084 INFO L208 MainTranslator]: Completed translation [2022-11-20 11:29:35,085 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:29:35 WrapperNode [2022-11-20 11:29:35,085 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-20 11:29:35,086 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-20 11:29:35,086 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-20 11:29:35,086 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-20 11:29:35,094 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:29:35" (1/1) ... [2022-11-20 11:29:35,120 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:29:35" (1/1) ... [2022-11-20 11:29:35,198 INFO L138 Inliner]: procedures = 11, calls = 3, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 1047 [2022-11-20 11:29:35,199 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-20 11:29:35,200 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-20 11:29:35,200 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-20 11:29:35,200 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-20 11:29:35,209 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:29:35" (1/1) ... [2022-11-20 11:29:35,210 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:29:35" (1/1) ... [2022-11-20 11:29:35,232 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:29:35" (1/1) ... [2022-11-20 11:29:35,243 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:29:35" (1/1) ... [2022-11-20 11:29:35,282 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:29:35" (1/1) ... [2022-11-20 11:29:35,301 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:29:35" (1/1) ... [2022-11-20 11:29:35,306 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:29:35" (1/1) ... [2022-11-20 11:29:35,324 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:29:35" (1/1) ... [2022-11-20 11:29:35,335 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-20 11:29:35,336 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-20 11:29:35,337 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-20 11:29:35,337 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-20 11:29:35,338 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:29:35" (1/1) ... [2022-11-20 11:29:35,344 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 11:29:35,359 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57804e80-cbfc-4e71-8407-55df585a8263/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 11:29:35,372 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57804e80-cbfc-4e71-8407-55df585a8263/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-20 11:29:35,385 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57804e80-cbfc-4e71-8407-55df585a8263/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-20 11:29:35,413 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-20 11:29:35,414 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-20 11:29:35,729 INFO L235 CfgBuilder]: Building ICFG [2022-11-20 11:29:35,732 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-20 11:29:54,486 INFO L276 CfgBuilder]: Performing block encoding [2022-11-20 11:29:54,493 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-20 11:29:54,493 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-20 11:29:54,495 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:29:54 BoogieIcfgContainer [2022-11-20 11:29:54,495 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-20 11:29:54,498 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-20 11:29:54,498 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-20 11:29:54,501 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-20 11:29:54,502 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 11:29:34" (1/3) ... [2022-11-20 11:29:54,502 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b3d1b50 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 11:29:54, skipping insertion in model container [2022-11-20 11:29:54,503 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:29:35" (2/3) ... [2022-11-20 11:29:54,503 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b3d1b50 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 11:29:54, skipping insertion in model container [2022-11-20 11:29:54,503 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:29:54" (3/3) ... [2022-11-20 11:29:54,505 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.vis_arrays_vsaR_p06.c [2022-11-20 11:29:54,524 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-20 11:29:54,524 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-20 11:29:54,571 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-20 11:29:54,578 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;@4225e64e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 11:29:54,578 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-20 11:29:54,583 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) [2022-11-20 11:29:54,588 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-20 11:29:54,589 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:29:54,590 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-11-20 11:29:54,590 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 11:29:54,595 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:29:54,596 INFO L85 PathProgramCache]: Analyzing trace with hash 28698761, now seen corresponding path program 1 times [2022-11-20 11:29:54,605 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:29:54,605 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1014963348] [2022-11-20 11:29:54,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:29:54,606 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:29:54,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 11:29:54,975 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-20 11:29:55,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 11:29:55,160 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-20 11:29:55,169 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-20 11:29:55,170 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-20 11:29:55,172 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-20 11:29:55,181 INFO L444 BasicCegarLoop]: Path program histogram: [1] [2022-11-20 11:29:55,185 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-20 11:29:55,225 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2022-11-20 11:29:55,242 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.11 11:29:55 BoogieIcfgContainer [2022-11-20 11:29:55,242 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-20 11:29:55,244 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-20 11:29:55,244 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-20 11:29:55,245 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-20 11:29:55,245 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:29:54" (3/4) ... [2022-11-20 11:29:55,249 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-20 11:29:55,249 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-20 11:29:55,250 INFO L158 Benchmark]: Toolchain (without parser) took 20884.84ms. Allocated memory was 151.0MB in the beginning and 499.1MB in the end (delta: 348.1MB). Free memory was 102.7MB in the beginning and 193.4MB in the end (delta: -90.7MB). Peak memory consumption was 260.5MB. Max. memory is 16.1GB. [2022-11-20 11:29:55,251 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 151.0MB. Free memory was 102.9MB in the beginning and 102.6MB in the end (delta: 246.6kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 11:29:55,252 INFO L158 Benchmark]: CACSL2BoogieTranslator took 717.48ms. Allocated memory is still 151.0MB. Free memory was 102.7MB in the beginning and 116.5MB in the end (delta: -13.9MB). Peak memory consumption was 43.8MB. Max. memory is 16.1GB. [2022-11-20 11:29:55,253 INFO L158 Benchmark]: Boogie Procedure Inliner took 112.91ms. Allocated memory is still 151.0MB. Free memory was 116.5MB in the beginning and 106.1MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-20 11:29:55,258 INFO L158 Benchmark]: Boogie Preprocessor took 136.09ms. Allocated memory is still 151.0MB. Free memory was 106.1MB in the beginning and 100.0MB in the end (delta: 6.1MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2022-11-20 11:29:55,259 INFO L158 Benchmark]: RCFGBuilder took 19159.14ms. Allocated memory was 151.0MB in the beginning and 499.1MB in the end (delta: 348.1MB). Free memory was 100.0MB in the beginning and 237.4MB in the end (delta: -137.4MB). Peak memory consumption was 290.7MB. Max. memory is 16.1GB. [2022-11-20 11:29:55,261 INFO L158 Benchmark]: TraceAbstraction took 744.60ms. Allocated memory is still 499.1MB. Free memory was 237.4MB in the beginning and 193.4MB in the end (delta: 44.0MB). Peak memory consumption was 44.0MB. Max. memory is 16.1GB. [2022-11-20 11:29:55,262 INFO L158 Benchmark]: Witness Printer took 4.95ms. Allocated memory is still 499.1MB. Free memory was 193.4MB in the beginning and 193.4MB in the end (delta: 2.0kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-20 11:29:55,271 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 151.0MB. Free memory was 102.9MB in the beginning and 102.6MB in the end (delta: 246.6kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 717.48ms. Allocated memory is still 151.0MB. Free memory was 102.7MB in the beginning and 116.5MB in the end (delta: -13.9MB). Peak memory consumption was 43.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 112.91ms. Allocated memory is still 151.0MB. Free memory was 116.5MB in the beginning and 106.1MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Preprocessor took 136.09ms. Allocated memory is still 151.0MB. Free memory was 106.1MB in the beginning and 100.0MB in the end (delta: 6.1MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * RCFGBuilder took 19159.14ms. Allocated memory was 151.0MB in the beginning and 499.1MB in the end (delta: 348.1MB). Free memory was 100.0MB in the beginning and 237.4MB in the end (delta: -137.4MB). Peak memory consumption was 290.7MB. Max. memory is 16.1GB. * TraceAbstraction took 744.60ms. Allocated memory is still 499.1MB. Free memory was 237.4MB in the beginning and 193.4MB in the end (delta: 44.0MB). Peak memory consumption was 44.0MB. Max. memory is 16.1GB. * Witness Printer took 4.95ms. Allocated memory is still 499.1MB. Free memory was 193.4MB in the beginning and 193.4MB in the end (delta: 2.0kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 20]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of bitwiseComplement at line 157, overapproximation of bitwiseOr at line 165, overapproximation of bitwiseAnd at line 147. Possible FailurePath: [L25] const SORT_1 mask_SORT_1 = (SORT_1)-1 >> (sizeof(SORT_1) * 8 - 1); [L26] const SORT_1 msb_SORT_1 = (SORT_1)1 << (1 - 1); [L28] const SORT_3 mask_SORT_3 = (SORT_3)-1 >> (sizeof(SORT_3) * 8 - 5); [L29] const SORT_3 msb_SORT_3 = (SORT_3)1 << (5 - 1); [L31] const SORT_5 mask_SORT_5 = (SORT_5)-1 >> (sizeof(SORT_5) * 8 - 12); [L32] const SORT_5 msb_SORT_5 = (SORT_5)1 << (12 - 1); [L34] const SORT_10 mask_SORT_10 = (SORT_10)-1 >> (sizeof(SORT_10) * 8 - 3); [L35] const SORT_10 msb_SORT_10 = (SORT_10)1 << (3 - 1); [L37] const SORT_80 mask_SORT_80 = (SORT_80)-1 >> (sizeof(SORT_80) * 8 - 32); [L38] const SORT_80 msb_SORT_80 = (SORT_80)1 << (32 - 1); [L40] const SORT_99 mask_SORT_99 = (SORT_99)-1 >> (sizeof(SORT_99) * 8 - 4); [L41] const SORT_99 msb_SORT_99 = (SORT_99)1 << (4 - 1); [L43] const SORT_176 mask_SORT_176 = (SORT_176)-1 >> (sizeof(SORT_176) * 8 - 2); [L44] const SORT_176 msb_SORT_176 = (SORT_176)1 << (2 - 1); [L46] const SORT_5 var_7 = 0; [L47] const SORT_10 var_12 = 2; [L48] const SORT_10 var_14 = 0; [L49] const SORT_1 var_20 = 0; [L50] const SORT_3 var_24 = 0; [L51] const SORT_1 var_35 = 1; [L52] const SORT_10 var_59 = 1; [L53] const SORT_10 var_64 = 4; [L54] const SORT_10 var_66 = 5; [L55] const SORT_10 var_70 = 3; [L56] const SORT_80 var_82 = 0; [L57] const SORT_10 var_116 = 7; [L58] const SORT_10 var_121 = 6; [L59] const SORT_3 var_162 = 2; [L60] const SORT_3 var_185 = 31; [L62] SORT_1 input_2; [L63] SORT_3 input_4; [L64] SORT_5 input_6; [L65] SORT_3 input_173; [L66] SORT_3 input_174; [L67] SORT_3 input_175; [L68] SORT_3 input_184; [L69] SORT_3 input_194; [L70] SORT_3 input_195; [L71] SORT_3 input_196; [L72] SORT_3 input_199; [L73] SORT_3 input_218; [L74] SORT_3 input_219; [L75] SORT_3 input_220; [L76] SORT_3 input_223; [L77] SORT_3 input_225; [L78] SORT_176 input_239; [L79] SORT_176 input_240; [L80] SORT_176 input_241; [L82] SORT_5 state_8 = __VERIFIER_nondet_ushort() & mask_SORT_5; [L83] SORT_10 state_15 = __VERIFIER_nondet_uchar() & mask_SORT_10; [L84] SORT_1 state_21 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L85] SORT_3 state_25 = __VERIFIER_nondet_uchar() & mask_SORT_3; [L86] SORT_3 state_39 = __VERIFIER_nondet_uchar() & mask_SORT_3; [L87] SORT_3 state_41 = __VERIFIER_nondet_uchar() & mask_SORT_3; [L88] SORT_3 state_43 = __VERIFIER_nondet_uchar() & mask_SORT_3; [L89] SORT_3 state_45 = __VERIFIER_nondet_uchar() & mask_SORT_3; [L90] SORT_3 state_47 = __VERIFIER_nondet_uchar() & mask_SORT_3; [L91] SORT_3 state_49 = __VERIFIER_nondet_uchar() & mask_SORT_3; [L92] SORT_3 state_51 = __VERIFIER_nondet_uchar() & mask_SORT_3; [L93] SORT_3 state_53 = __VERIFIER_nondet_uchar() & mask_SORT_3; [L94] SORT_3 state_55 = __VERIFIER_nondet_uchar() & mask_SORT_3; [L96] SORT_5 init_9_arg_1 = var_7; [L97] state_8 = init_9_arg_1 [L98] SORT_10 init_16_arg_1 = var_14; [L99] state_15 = init_16_arg_1 [L100] SORT_1 init_22_arg_1 = var_20; [L101] state_21 = init_22_arg_1 [L102] SORT_3 init_26_arg_1 = var_24; [L103] state_25 = init_26_arg_1 [L104] SORT_3 init_40_arg_1 = var_24; [L105] state_39 = init_40_arg_1 [L106] SORT_3 init_42_arg_1 = var_24; [L107] state_41 = init_42_arg_1 [L108] SORT_3 init_44_arg_1 = var_24; [L109] state_43 = init_44_arg_1 [L110] SORT_3 init_46_arg_1 = var_24; [L111] state_45 = init_46_arg_1 [L112] SORT_3 init_48_arg_1 = var_24; [L113] state_47 = init_48_arg_1 [L114] SORT_3 init_50_arg_1 = var_24; [L115] state_49 = init_50_arg_1 [L116] SORT_3 init_52_arg_1 = var_24; [L117] state_51 = init_52_arg_1 [L118] SORT_3 init_54_arg_1 = var_24; [L119] state_53 = init_54_arg_1 [L120] SORT_3 init_56_arg_1 = var_24; [L121] state_55 = init_56_arg_1 VAL [init_16_arg_1=0, init_22_arg_1=0, init_26_arg_1=0, init_40_arg_1=0, init_42_arg_1=0, init_44_arg_1=0, init_46_arg_1=0, init_48_arg_1=0, init_50_arg_1=0, init_52_arg_1=0, init_54_arg_1=0, init_56_arg_1=0, init_9_arg_1=0, mask_SORT_1=1, mask_SORT_10=7, mask_SORT_176=3, mask_SORT_3=31, mask_SORT_5=4095, mask_SORT_80=4294967295, mask_SORT_99=15, msb_SORT_1=1, msb_SORT_10=4, msb_SORT_176=2, msb_SORT_3=16, msb_SORT_5=2048, msb_SORT_80=2147483648, msb_SORT_99=8, state_15=0, state_21=0, state_25=0, state_39=0, state_41=0, state_43=0, state_45=0, state_47=0, state_49=0, state_51=0, state_53=0, state_55=0, state_8=0, var_116=7, var_12=2, var_121=6, var_14=0, var_162=2, var_185=31, var_20=0, var_24=0, var_35=1, var_59=1, var_64=4, var_66=5, var_7=0, var_70=3, var_82=0] [L124] input_2 = __VERIFIER_nondet_uchar() [L125] input_4 = __VERIFIER_nondet_uchar() [L126] input_6 = __VERIFIER_nondet_ushort() [L127] input_173 = __VERIFIER_nondet_uchar() [L128] input_174 = __VERIFIER_nondet_uchar() [L129] input_175 = __VERIFIER_nondet_uchar() [L130] input_184 = __VERIFIER_nondet_uchar() [L131] input_194 = __VERIFIER_nondet_uchar() [L132] input_195 = __VERIFIER_nondet_uchar() [L133] input_196 = __VERIFIER_nondet_uchar() [L134] input_199 = __VERIFIER_nondet_uchar() [L135] input_218 = __VERIFIER_nondet_uchar() [L136] input_219 = __VERIFIER_nondet_uchar() [L137] input_220 = __VERIFIER_nondet_uchar() [L138] input_223 = __VERIFIER_nondet_uchar() [L139] input_225 = __VERIFIER_nondet_uchar() [L140] input_239 = __VERIFIER_nondet_uchar() [L141] input_240 = __VERIFIER_nondet_uchar() [L142] input_241 = __VERIFIER_nondet_uchar() [L145] SORT_5 var_11_arg_0 = state_8; [L146] SORT_10 var_11 = var_11_arg_0 >> 9; [L147] var_11 = var_11 & mask_SORT_10 [L148] SORT_10 var_13_arg_0 = var_11; [L149] SORT_10 var_13_arg_1 = var_12; [L150] SORT_1 var_13 = var_13_arg_0 == var_13_arg_1; [L151] SORT_10 var_17_arg_0 = state_15; [L152] SORT_1 var_17 = var_17_arg_0 >> 2; [L153] SORT_1 var_18_arg_0 = var_13; [L154] SORT_1 var_18_arg_1 = var_17; [L155] SORT_1 var_18 = var_18_arg_0 & var_18_arg_1; [L156] SORT_1 var_19_arg_0 = var_18; [L157] SORT_1 var_19 = ~var_19_arg_0; [L158] SORT_1 var_23_arg_0 = state_21; [L159] SORT_1 var_23 = ~var_23_arg_0; [L160] SORT_3 var_27_arg_0 = state_25; [L161] SORT_3 var_27_arg_1 = var_24; [L162] SORT_1 var_27 = var_27_arg_0 == var_27_arg_1; [L163] SORT_1 var_28_arg_0 = var_23; [L164] SORT_1 var_28_arg_1 = var_27; [L165] SORT_1 var_28 = var_28_arg_0 | var_28_arg_1; [L166] SORT_3 var_29_arg_0 = state_25; [L167] SORT_3 var_29_arg_1 = var_24; [L168] SORT_1 var_29 = var_29_arg_0 != var_29_arg_1; [L169] SORT_1 var_30_arg_0 = var_29; [L170] SORT_1 var_30_arg_1 = state_21; [L171] SORT_1 var_30 = var_30_arg_0 | var_30_arg_1; [L172] SORT_1 var_31_arg_0 = var_28; [L173] SORT_1 var_31_arg_1 = var_30; [L174] SORT_1 var_31 = var_31_arg_0 & var_31_arg_1; [L175] SORT_1 var_32_arg_0 = var_19; [L176] SORT_1 var_32_arg_1 = var_31; [L177] SORT_1 var_32 = var_32_arg_0 | var_32_arg_1; [L178] SORT_1 var_36_arg_0 = var_32; [L179] SORT_1 var_36 = ~var_36_arg_0; [L180] SORT_1 var_37_arg_0 = var_35; [L181] SORT_1 var_37_arg_1 = var_36; [L182] SORT_1 var_37 = var_37_arg_0 & var_37_arg_1; [L183] var_37 = var_37 & mask_SORT_1 [L184] SORT_1 bad_38_arg_0 = var_37; [L185] CALL __VERIFIER_assert(!(bad_38_arg_0)) [L20] COND TRUE !(cond) VAL [\old(cond)=0, cond=0] [L20] reach_error() VAL [\old(cond)=0, cond=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 11 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.6s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=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, 0.3s 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 [2022-11-20 11:29:55,307 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57804e80-cbfc-4e71-8407-55df585a8263/bin/uautomizer-ug76WZFUDN/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_57804e80-cbfc-4e71-8407-55df585a8263/bin/uautomizer-ug76WZFUDN/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57804e80-cbfc-4e71-8407-55df585a8263/bin/uautomizer-ug76WZFUDN/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57804e80-cbfc-4e71-8407-55df585a8263/bin/uautomizer-ug76WZFUDN/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57804e80-cbfc-4e71-8407-55df585a8263/bin/uautomizer-ug76WZFUDN/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_arrays_vsaR_p06.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57804e80-cbfc-4e71-8407-55df585a8263/bin/uautomizer-ug76WZFUDN/config/svcomp-Reach-64bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57804e80-cbfc-4e71-8407-55df585a8263/bin/uautomizer-ug76WZFUDN --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 40a9698cd1f506d6a856b33d872fce85f12f9f3b9fe0d2e800ed6327fc1a6049 --- 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-6b4ec56 [2022-11-20 11:29:57,808 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 11:29:57,811 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 11:29:57,851 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 11:29:57,852 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 11:29:57,856 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 11:29:57,858 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 11:29:57,864 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 11:29:57,867 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 11:29:57,869 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 11:29:57,870 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 11:29:57,871 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 11:29:57,872 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 11:29:57,873 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 11:29:57,878 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 11:29:57,879 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 11:29:57,880 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 11:29:57,881 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 11:29:57,891 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 11:29:57,893 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 11:29:57,897 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 11:29:57,901 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 11:29:57,902 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 11:29:57,904 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 11:29:57,908 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 11:29:57,913 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 11:29:57,914 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 11:29:57,915 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 11:29:57,915 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 11:29:57,918 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 11:29:57,918 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 11:29:57,920 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 11:29:57,921 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 11:29:57,934 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 11:29:57,936 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 11:29:57,936 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 11:29:57,937 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 11:29:57,937 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 11:29:57,937 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 11:29:57,938 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 11:29:57,939 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 11:29:57,940 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57804e80-cbfc-4e71-8407-55df585a8263/bin/uautomizer-ug76WZFUDN/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2022-11-20 11:29:57,963 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 11:29:57,964 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 11:29:57,964 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 11:29:57,964 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 11:29:57,965 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 11:29:57,965 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-20 11:29:57,966 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-20 11:29:57,966 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-20 11:29:57,966 INFO L138 SettingsManager]: * Use SBE=true [2022-11-20 11:29:57,967 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 11:29:57,967 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 11:29:57,967 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 11:29:57,967 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 11:29:57,967 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 11:29:57,968 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-20 11:29:57,968 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-20 11:29:57,968 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-20 11:29:57,968 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 11:29:57,969 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 11:29:57,969 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 11:29:57,969 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 11:29:57,969 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-20 11:29:57,969 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-20 11:29:57,970 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 11:29:57,970 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 11:29:57,970 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 11:29:57,970 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 11:29:57,971 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-11-20 11:29:57,971 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-20 11:29:57,971 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-20 11:29:57,971 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-20 11:29:57,971 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 11:29:57,972 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-20 11:29:57,972 INFO L138 SettingsManager]: * Logic for external solver=AUFBV WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57804e80-cbfc-4e71-8407-55df585a8263/bin/uautomizer-ug76WZFUDN/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57804e80-cbfc-4e71-8407-55df585a8263/bin/uautomizer-ug76WZFUDN Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 40a9698cd1f506d6a856b33d872fce85f12f9f3b9fe0d2e800ed6327fc1a6049 [2022-11-20 11:29:58,386 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 11:29:58,415 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 11:29:58,418 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 11:29:58,419 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 11:29:58,420 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 11:29:58,422 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57804e80-cbfc-4e71-8407-55df585a8263/bin/uautomizer-ug76WZFUDN/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_arrays_vsaR_p06.c [2022-11-20 11:30:01,554 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 11:30:01,846 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 11:30:01,847 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57804e80-cbfc-4e71-8407-55df585a8263/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_arrays_vsaR_p06.c [2022-11-20 11:30:01,862 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57804e80-cbfc-4e71-8407-55df585a8263/bin/uautomizer-ug76WZFUDN/data/408674251/38cbd5c32877498e958240bd9cc32aad/FLAGd53cfc33b [2022-11-20 11:30:01,879 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57804e80-cbfc-4e71-8407-55df585a8263/bin/uautomizer-ug76WZFUDN/data/408674251/38cbd5c32877498e958240bd9cc32aad [2022-11-20 11:30:01,881 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 11:30:01,883 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 11:30:01,884 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 11:30:01,884 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 11:30:01,888 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 11:30:01,889 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 11:30:01" (1/1) ... [2022-11-20 11:30:01,890 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@63199724 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:30:01, skipping insertion in model container [2022-11-20 11:30:01,890 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 11:30:01" (1/1) ... [2022-11-20 11:30:01,898 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 11:30:01,952 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 11:30:02,105 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_57804e80-cbfc-4e71-8407-55df585a8263/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_arrays_vsaR_p06.c[1107,1120] [2022-11-20 11:30:02,434 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 11:30:02,448 INFO L203 MainTranslator]: Completed pre-run [2022-11-20 11:30:02,466 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_57804e80-cbfc-4e71-8407-55df585a8263/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_arrays_vsaR_p06.c[1107,1120] [2022-11-20 11:30:02,582 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 11:30:02,603 INFO L208 MainTranslator]: Completed translation [2022-11-20 11:30:02,604 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:30:02 WrapperNode [2022-11-20 11:30:02,604 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-20 11:30:02,608 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-20 11:30:02,608 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-20 11:30:02,608 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-20 11:30:02,615 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:30:02" (1/1) ... [2022-11-20 11:30:02,654 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:30:02" (1/1) ... [2022-11-20 11:30:02,746 INFO L138 Inliner]: procedures = 11, calls = 3, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 1047 [2022-11-20 11:30:02,759 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-20 11:30:02,760 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-20 11:30:02,760 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-20 11:30:02,760 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-20 11:30:02,771 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:30:02" (1/1) ... [2022-11-20 11:30:02,771 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:30:02" (1/1) ... [2022-11-20 11:30:02,778 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:30:02" (1/1) ... [2022-11-20 11:30:02,779 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:30:02" (1/1) ... [2022-11-20 11:30:02,832 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:30:02" (1/1) ... [2022-11-20 11:30:02,837 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:30:02" (1/1) ... [2022-11-20 11:30:02,841 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:30:02" (1/1) ... [2022-11-20 11:30:02,845 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:30:02" (1/1) ... [2022-11-20 11:30:02,854 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-20 11:30:02,854 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-20 11:30:02,855 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-20 11:30:02,855 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-20 11:30:02,856 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:30:02" (1/1) ... [2022-11-20 11:30:02,862 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 11:30:02,894 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57804e80-cbfc-4e71-8407-55df585a8263/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 11:30:02,925 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57804e80-cbfc-4e71-8407-55df585a8263/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-20 11:30:02,938 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57804e80-cbfc-4e71-8407-55df585a8263/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-20 11:30:02,976 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-20 11:30:02,976 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-20 11:30:03,331 INFO L235 CfgBuilder]: Building ICFG [2022-11-20 11:30:03,333 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-20 11:30:04,820 INFO L276 CfgBuilder]: Performing block encoding [2022-11-20 11:30:04,846 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-20 11:30:04,847 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-20 11:30:04,849 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:30:04 BoogieIcfgContainer [2022-11-20 11:30:04,849 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-20 11:30:04,852 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-20 11:30:04,852 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-20 11:30:04,856 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-20 11:30:04,856 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 11:30:01" (1/3) ... [2022-11-20 11:30:04,857 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7993404f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 11:30:04, skipping insertion in model container [2022-11-20 11:30:04,857 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:30:02" (2/3) ... [2022-11-20 11:30:04,858 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7993404f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 11:30:04, skipping insertion in model container [2022-11-20 11:30:04,858 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:30:04" (3/3) ... [2022-11-20 11:30:04,864 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.vis_arrays_vsaR_p06.c [2022-11-20 11:30:04,888 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-20 11:30:04,888 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-20 11:30:04,963 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-20 11:30:04,972 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;@2f8e5c8d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 11:30:04,972 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-20 11:30:04,977 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) [2022-11-20 11:30:04,985 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-20 11:30:04,985 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:30:04,986 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-11-20 11:30:04,987 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 11:30:04,997 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:30:04,998 INFO L85 PathProgramCache]: Analyzing trace with hash 28698761, now seen corresponding path program 1 times [2022-11-20 11:30:05,018 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 11:30:05,018 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1817458429] [2022-11-20 11:30:05,019 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:30:05,019 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 [2022-11-20 11:30:05,020 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57804e80-cbfc-4e71-8407-55df585a8263/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 11:30:05,031 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57804e80-cbfc-4e71-8407-55df585a8263/bin/uautomizer-ug76WZFUDN/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) [2022-11-20 11:30:05,038 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57804e80-cbfc-4e71-8407-55df585a8263/bin/uautomizer-ug76WZFUDN/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 [2022-11-20 11:30:05,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:30:05,355 INFO L263 TraceCheckSpWp]: Trace formula consists of 119 conjuncts, 20 conjunts are in the unsatisfiable core [2022-11-20 11:30:05,365 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:30:05,555 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:30:05,555 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 11:30:05,556 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 11:30:05,556 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1817458429] [2022-11-20 11:30:05,557 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1817458429] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:30:05,557 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:30:05,557 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-20 11:30:05,559 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [20788657] [2022-11-20 11:30:05,560 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:30:05,564 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-20 11:30:05,564 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 11:30:05,590 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-20 11:30:05,591 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-20 11:30:05,593 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) [2022-11-20 11:30:05,765 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:30:05,766 INFO L93 Difference]: Finished difference Result 20 states and 30 transitions. [2022-11-20 11:30:05,767 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-20 11:30:05,768 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 [2022-11-20 11:30:05,769 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:30:05,776 INFO L225 Difference]: With dead ends: 20 [2022-11-20 11:30:05,776 INFO L226 Difference]: Without dead ends: 11 [2022-11-20 11:30:05,779 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 [2022-11-20 11:30:05,782 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 [2022-11-20 11:30:05,783 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] [2022-11-20 11:30:05,800 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2022-11-20 11:30:05,810 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 9. [2022-11-20 11:30:05,812 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) [2022-11-20 11:30:05,812 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2022-11-20 11:30:05,813 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 5 [2022-11-20 11:30:05,814 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:30:05,814 INFO L495 AbstractCegarLoop]: Abstraction has 9 states and 9 transitions. [2022-11-20 11:30:05,814 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) [2022-11-20 11:30:05,815 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2022-11-20 11:30:05,815 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-20 11:30:05,815 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:30:05,815 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2022-11-20 11:30:05,832 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57804e80-cbfc-4e71-8407-55df585a8263/bin/uautomizer-ug76WZFUDN/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 [2022-11-20 11:30:06,027 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57804e80-cbfc-4e71-8407-55df585a8263/bin/uautomizer-ug76WZFUDN/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 [2022-11-20 11:30:06,027 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 11:30:06,028 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:30:06,028 INFO L85 PathProgramCache]: Analyzing trace with hash 271073635, now seen corresponding path program 1 times [2022-11-20 11:30:06,031 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 11:30:06,031 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [35311085] [2022-11-20 11:30:06,031 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:30:06,031 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 [2022-11-20 11:30:06,032 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57804e80-cbfc-4e71-8407-55df585a8263/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 11:30:06,033 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57804e80-cbfc-4e71-8407-55df585a8263/bin/uautomizer-ug76WZFUDN/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) [2022-11-20 11:30:06,057 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57804e80-cbfc-4e71-8407-55df585a8263/bin/uautomizer-ug76WZFUDN/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 [2022-11-20 11:30:06,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:30:06,727 INFO L263 TraceCheckSpWp]: Trace formula consists of 979 conjuncts, 33 conjunts are in the unsatisfiable core [2022-11-20 11:30:06,736 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:30:06,900 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:30:06,901 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 11:30:07,324 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:30:07,325 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 11:30:07,325 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [35311085] [2022-11-20 11:30:07,326 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [35311085] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 11:30:07,326 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-20 11:30:07,326 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2022-11-20 11:30:07,326 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [679712840] [2022-11-20 11:30:07,326 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-20 11:30:07,328 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-20 11:30:07,328 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 11:30:07,328 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-20 11:30:07,329 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2022-11-20 11:30:07,329 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) [2022-11-20 11:30:07,490 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:30:07,490 INFO L93 Difference]: Finished difference Result 16 states and 16 transitions. [2022-11-20 11:30:07,491 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-20 11:30:07,491 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 [2022-11-20 11:30:07,492 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:30:07,492 INFO L225 Difference]: With dead ends: 16 [2022-11-20 11:30:07,492 INFO L226 Difference]: Without dead ends: 14 [2022-11-20 11:30:07,493 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2022-11-20 11:30:07,494 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 9 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 19 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 10 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-20 11:30:07,495 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 19 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 8 Invalid, 0 Unknown, 10 Unchecked, 0.1s Time] [2022-11-20 11:30:07,496 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2022-11-20 11:30:07,499 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 12. [2022-11-20 11:30:07,499 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) [2022-11-20 11:30:07,500 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 12 transitions. [2022-11-20 11:30:07,500 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 12 transitions. Word has length 8 [2022-11-20 11:30:07,501 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:30:07,501 INFO L495 AbstractCegarLoop]: Abstraction has 12 states and 12 transitions. [2022-11-20 11:30:07,501 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) [2022-11-20 11:30:07,501 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 12 transitions. [2022-11-20 11:30:07,502 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-20 11:30:07,502 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:30:07,502 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1] [2022-11-20 11:30:07,523 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57804e80-cbfc-4e71-8407-55df585a8263/bin/uautomizer-ug76WZFUDN/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 [2022-11-20 11:30:07,715 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57804e80-cbfc-4e71-8407-55df585a8263/bin/uautomizer-ug76WZFUDN/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 [2022-11-20 11:30:07,715 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 11:30:07,716 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:30:07,716 INFO L85 PathProgramCache]: Analyzing trace with hash 1020920393, now seen corresponding path program 2 times [2022-11-20 11:30:07,719 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 11:30:07,719 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [642155590] [2022-11-20 11:30:07,720 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-20 11:30:07,720 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 [2022-11-20 11:30:07,720 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57804e80-cbfc-4e71-8407-55df585a8263/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 11:30:07,721 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57804e80-cbfc-4e71-8407-55df585a8263/bin/uautomizer-ug76WZFUDN/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) [2022-11-20 11:30:07,739 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57804e80-cbfc-4e71-8407-55df585a8263/bin/uautomizer-ug76WZFUDN/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 [2022-11-20 11:30:08,623 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-20 11:30:08,623 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-20 11:30:08,667 INFO L263 TraceCheckSpWp]: Trace formula consists of 1839 conjuncts, 44 conjunts are in the unsatisfiable core [2022-11-20 11:30:08,680 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:30:08,954 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:30:08,955 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 11:30:10,390 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:30:10,391 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 11:30:10,391 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [642155590] [2022-11-20 11:30:10,395 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [642155590] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 11:30:10,396 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-20 11:30:10,396 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2022-11-20 11:30:10,396 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [253042959] [2022-11-20 11:30:10,397 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-20 11:30:10,397 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-20 11:30:10,397 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 11:30:10,398 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-20 11:30:10,400 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2022-11-20 11:30:10,400 INFO L87 Difference]: Start difference. First operand 12 states and 12 transitions. Second operand has 10 states, 10 states have (on average 2.0) internal successors, (20), 10 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:30:11,024 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:30:11,025 INFO L93 Difference]: Finished difference Result 21 states and 22 transitions. [2022-11-20 11:30:11,025 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-20 11:30:11,025 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 2.0) internal successors, (20), 10 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2022-11-20 11:30:11,026 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:30:11,026 INFO L225 Difference]: With dead ends: 21 [2022-11-20 11:30:11,026 INFO L226 Difference]: Without dead ends: 19 [2022-11-20 11:30:11,026 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=75, Invalid=165, Unknown=0, NotChecked=0, Total=240 [2022-11-20 11:30:11,027 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 15 mSDsluCounter, 26 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 30 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 31 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-20 11:30:11,028 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 30 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 15 Invalid, 0 Unknown, 31 Unchecked, 0.3s Time] [2022-11-20 11:30:11,029 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2022-11-20 11:30:11,033 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 18. [2022-11-20 11:30:11,034 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18 states, 17 states have (on average 1.0588235294117647) internal successors, (18), 17 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:30:11,034 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 18 transitions. [2022-11-20 11:30:11,034 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 18 transitions. Word has length 11 [2022-11-20 11:30:11,035 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:30:11,035 INFO L495 AbstractCegarLoop]: Abstraction has 18 states and 18 transitions. [2022-11-20 11:30:11,035 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 2.0) internal successors, (20), 10 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:30:11,035 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 18 transitions. [2022-11-20 11:30:11,036 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-11-20 11:30:11,036 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:30:11,036 INFO L195 NwaCegarLoop]: trace histogram [5, 4, 4, 1, 1, 1, 1] [2022-11-20 11:30:11,063 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57804e80-cbfc-4e71-8407-55df585a8263/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2022-11-20 11:30:11,258 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57804e80-cbfc-4e71-8407-55df585a8263/bin/uautomizer-ug76WZFUDN/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 [2022-11-20 11:30:11,258 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 11:30:11,258 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:30:11,258 INFO L85 PathProgramCache]: Analyzing trace with hash -1250702327, now seen corresponding path program 3 times [2022-11-20 11:30:11,264 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 11:30:11,264 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [926361415] [2022-11-20 11:30:11,264 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-20 11:30:11,266 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 [2022-11-20 11:30:11,267 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57804e80-cbfc-4e71-8407-55df585a8263/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 11:30:11,268 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57804e80-cbfc-4e71-8407-55df585a8263/bin/uautomizer-ug76WZFUDN/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) [2022-11-20 11:30:11,275 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57804e80-cbfc-4e71-8407-55df585a8263/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2022-11-20 11:30:12,830 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2022-11-20 11:30:12,830 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-20 11:30:12,901 INFO L263 TraceCheckSpWp]: Trace formula consists of 3559 conjuncts, 221 conjunts are in the unsatisfiable core [2022-11-20 11:30:12,927 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:30:22,978 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:30:22,978 INFO L328 TraceCheckSpWp]: Computing backward predicates...