./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_arrays_vsaR_p02.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version b5237d83 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_339f9fce-5b33-4369-9684-f69d88651a8e/bin/uautomizer-vX5HgA9Q3a/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_339f9fce-5b33-4369-9684-f69d88651a8e/bin/uautomizer-vX5HgA9Q3a/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_339f9fce-5b33-4369-9684-f69d88651a8e/bin/uautomizer-vX5HgA9Q3a/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_339f9fce-5b33-4369-9684-f69d88651a8e/bin/uautomizer-vX5HgA9Q3a/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_arrays_vsaR_p02.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_339f9fce-5b33-4369-9684-f69d88651a8e/bin/uautomizer-vX5HgA9Q3a/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_339f9fce-5b33-4369-9684-f69d88651a8e/bin/uautomizer-vX5HgA9Q3a --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 2f1d80befaa77be0a079109a635df23085fa7ccf7b1b752044bebae6779c0281 --- 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-b5237d8 [2022-11-21 16:06:45,229 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-21 16:06:45,232 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-21 16:06:45,265 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-21 16:06:45,266 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-21 16:06:45,270 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-21 16:06:45,273 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-21 16:06:45,277 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-21 16:06:45,280 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-21 16:06:45,288 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-21 16:06:45,290 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-21 16:06:45,293 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-21 16:06:45,293 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-21 16:06:45,298 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-21 16:06:45,304 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-21 16:06:45,307 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-21 16:06:45,310 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-21 16:06:45,312 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-21 16:06:45,314 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-21 16:06:45,317 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-21 16:06:45,325 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-21 16:06:45,326 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-21 16:06:45,329 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-21 16:06:45,331 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-21 16:06:45,335 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-21 16:06:45,342 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-21 16:06:45,342 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-21 16:06:45,344 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-21 16:06:45,346 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-21 16:06:45,347 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-21 16:06:45,350 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-21 16:06:45,351 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-21 16:06:45,353 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-21 16:06:45,355 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-21 16:06:45,357 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-21 16:06:45,359 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-21 16:06:45,361 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-21 16:06:45,361 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-21 16:06:45,362 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-21 16:06:45,364 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-21 16:06:45,366 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-21 16:06:45,368 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_339f9fce-5b33-4369-9684-f69d88651a8e/bin/uautomizer-vX5HgA9Q3a/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-11-21 16:06:45,393 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-21 16:06:45,394 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-21 16:06:45,394 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-21 16:06:45,395 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-21 16:06:45,395 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-21 16:06:45,396 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-21 16:06:45,397 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-21 16:06:45,397 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-21 16:06:45,397 INFO L138 SettingsManager]: * Use SBE=true [2022-11-21 16:06:45,398 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-21 16:06:45,398 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-21 16:06:45,398 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-21 16:06:45,398 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-21 16:06:45,399 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-21 16:06:45,399 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-21 16:06:45,399 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-21 16:06:45,399 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-21 16:06:45,400 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-21 16:06:45,400 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-21 16:06:45,400 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-21 16:06:45,401 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-21 16:06:45,401 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-21 16:06:45,401 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-21 16:06:45,401 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-21 16:06:45,402 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-21 16:06:45,402 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-21 16:06:45,402 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-21 16:06:45,402 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-21 16:06:45,403 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-21 16:06:45,403 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-21 16:06:45,403 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_339f9fce-5b33-4369-9684-f69d88651a8e/bin/uautomizer-vX5HgA9Q3a/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_339f9fce-5b33-4369-9684-f69d88651a8e/bin/uautomizer-vX5HgA9Q3a Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2f1d80befaa77be0a079109a635df23085fa7ccf7b1b752044bebae6779c0281 [2022-11-21 16:06:45,814 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-21 16:06:45,845 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-21 16:06:45,848 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-21 16:06:45,850 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-21 16:06:45,850 INFO L275 PluginConnector]: CDTParser initialized [2022-11-21 16:06:45,852 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_339f9fce-5b33-4369-9684-f69d88651a8e/bin/uautomizer-vX5HgA9Q3a/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_arrays_vsaR_p02.c [2022-11-21 16:06:49,321 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-21 16:06:49,669 INFO L351 CDTParser]: Found 1 translation units. [2022-11-21 16:06:49,670 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_339f9fce-5b33-4369-9684-f69d88651a8e/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_arrays_vsaR_p02.c [2022-11-21 16:06:49,685 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_339f9fce-5b33-4369-9684-f69d88651a8e/bin/uautomizer-vX5HgA9Q3a/data/db0996849/dd2744062f194bfd815817ac499b2175/FLAG02a55c6fc [2022-11-21 16:06:49,701 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_339f9fce-5b33-4369-9684-f69d88651a8e/bin/uautomizer-vX5HgA9Q3a/data/db0996849/dd2744062f194bfd815817ac499b2175 [2022-11-21 16:06:49,704 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-21 16:06:49,705 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-21 16:06:49,707 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-21 16:06:49,707 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-21 16:06:49,712 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-21 16:06:49,713 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 04:06:49" (1/1) ... [2022-11-21 16:06:49,714 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4ee7a28f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:06:49, skipping insertion in model container [2022-11-21 16:06:49,714 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 04:06:49" (1/1) ... [2022-11-21 16:06:49,723 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-21 16:06:49,772 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-21 16:06:50,007 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_339f9fce-5b33-4369-9684-f69d88651a8e/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_arrays_vsaR_p02.c[1107,1120] [2022-11-21 16:06:50,365 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 16:06:50,372 INFO L203 MainTranslator]: Completed pre-run [2022-11-21 16:06:50,386 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_339f9fce-5b33-4369-9684-f69d88651a8e/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_arrays_vsaR_p02.c[1107,1120] [2022-11-21 16:06:50,547 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 16:06:50,570 INFO L208 MainTranslator]: Completed translation [2022-11-21 16:06:50,571 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:06:50 WrapperNode [2022-11-21 16:06:50,571 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-21 16:06:50,573 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-21 16:06:50,573 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-21 16:06:50,573 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-21 16:06:50,583 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:06:50" (1/1) ... [2022-11-21 16:06:50,614 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:06:50" (1/1) ... [2022-11-21 16:06:50,696 INFO L138 Inliner]: procedures = 11, calls = 3, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 1034 [2022-11-21 16:06:50,697 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-21 16:06:50,698 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-21 16:06:50,698 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-21 16:06:50,698 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-21 16:06:50,710 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:06:50" (1/1) ... [2022-11-21 16:06:50,710 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:06:50" (1/1) ... [2022-11-21 16:06:50,727 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:06:50" (1/1) ... [2022-11-21 16:06:50,727 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:06:50" (1/1) ... [2022-11-21 16:06:50,784 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:06:50" (1/1) ... [2022-11-21 16:06:50,790 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:06:50" (1/1) ... [2022-11-21 16:06:50,796 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:06:50" (1/1) ... [2022-11-21 16:06:50,802 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:06:50" (1/1) ... [2022-11-21 16:06:50,827 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-21 16:06:50,828 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-21 16:06:50,828 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-21 16:06:50,828 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-21 16:06:50,830 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:06:50" (1/1) ... [2022-11-21 16:06:50,841 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-21 16:06:50,856 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_339f9fce-5b33-4369-9684-f69d88651a8e/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 16:06:50,880 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_339f9fce-5b33-4369-9684-f69d88651a8e/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-21 16:06:50,917 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_339f9fce-5b33-4369-9684-f69d88651a8e/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-21 16:06:50,941 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-21 16:06:50,942 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-21 16:06:51,375 INFO L235 CfgBuilder]: Building ICFG [2022-11-21 16:06:51,378 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-21 16:07:13,763 INFO L276 CfgBuilder]: Performing block encoding [2022-11-21 16:07:13,784 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-21 16:07:13,789 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-21 16:07:13,792 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 04:07:13 BoogieIcfgContainer [2022-11-21 16:07:13,792 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-21 16:07:13,795 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-21 16:07:13,796 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-21 16:07:13,800 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-21 16:07:13,801 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 04:06:49" (1/3) ... [2022-11-21 16:07:13,804 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c194a8c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 04:07:13, skipping insertion in model container [2022-11-21 16:07:13,805 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:06:50" (2/3) ... [2022-11-21 16:07:13,807 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c194a8c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 04:07:13, skipping insertion in model container [2022-11-21 16:07:13,807 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 04:07:13" (3/3) ... [2022-11-21 16:07:13,809 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.vis_arrays_vsaR_p02.c [2022-11-21 16:07:13,834 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-21 16:07:13,835 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-21 16:07:13,905 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-21 16:07:13,915 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;@13e11b0a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-21 16:07:13,916 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-21 16:07:13,925 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) [2022-11-21 16:07:13,933 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-21 16:07:13,934 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:07:13,935 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-11-21 16:07:13,936 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 16:07:13,947 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:07:13,948 INFO L85 PathProgramCache]: Analyzing trace with hash 28698761, now seen corresponding path program 1 times [2022-11-21 16:07:13,962 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:07:13,963 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1510548061] [2022-11-21 16:07:13,963 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:07:13,964 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:07:14,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-21 16:07:14,235 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-21 16:07:14,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-21 16:07:14,377 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-21 16:07:14,380 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-21 16:07:14,381 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-21 16:07:14,384 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-21 16:07:14,390 INFO L444 BasicCegarLoop]: Path program histogram: [1] [2022-11-21 16:07:14,396 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-21 16:07:14,426 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2022-11-21 16:07:14,442 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.11 04:07:14 BoogieIcfgContainer [2022-11-21 16:07:14,442 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-21 16:07:14,445 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-21 16:07:14,445 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-21 16:07:14,445 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-21 16:07:14,446 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 04:07:13" (3/4) ... [2022-11-21 16:07:14,451 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-21 16:07:14,451 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-21 16:07:14,454 INFO L158 Benchmark]: Toolchain (without parser) took 24746.91ms. Allocated memory was 167.8MB in the beginning and 541.1MB in the end (delta: 373.3MB). Free memory was 138.1MB in the beginning and 311.8MB in the end (delta: -173.7MB). Peak memory consumption was 202.7MB. Max. memory is 16.1GB. [2022-11-21 16:07:14,455 INFO L158 Benchmark]: CDTParser took 0.34ms. Allocated memory is still 117.4MB. Free memory is still 85.3MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-21 16:07:14,456 INFO L158 Benchmark]: CACSL2BoogieTranslator took 864.94ms. Allocated memory is still 167.8MB. Free memory was 138.1MB in the beginning and 102.0MB in the end (delta: 36.2MB). Peak memory consumption was 37.7MB. Max. memory is 16.1GB. [2022-11-21 16:07:14,458 INFO L158 Benchmark]: Boogie Procedure Inliner took 124.59ms. Allocated memory is still 167.8MB. Free memory was 102.0MB in the beginning and 91.5MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-21 16:07:14,459 INFO L158 Benchmark]: Boogie Preprocessor took 129.19ms. Allocated memory is still 167.8MB. Free memory was 91.5MB in the beginning and 86.3MB in the end (delta: 5.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-21 16:07:14,466 INFO L158 Benchmark]: RCFGBuilder took 22964.45ms. Allocated memory was 167.8MB in the beginning and 541.1MB in the end (delta: 373.3MB). Free memory was 85.9MB in the beginning and 345.4MB in the end (delta: -259.5MB). Peak memory consumption was 239.2MB. Max. memory is 16.1GB. [2022-11-21 16:07:14,468 INFO L158 Benchmark]: TraceAbstraction took 647.19ms. Allocated memory is still 541.1MB. Free memory was 344.3MB in the beginning and 312.9MB in the end (delta: 31.5MB). Peak memory consumption was 31.5MB. Max. memory is 16.1GB. [2022-11-21 16:07:14,472 INFO L158 Benchmark]: Witness Printer took 6.60ms. Allocated memory is still 541.1MB. Free memory was 311.8MB in the beginning and 311.8MB in the end (delta: 2.7kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-21 16:07:14,476 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34ms. Allocated memory is still 117.4MB. Free memory is still 85.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 864.94ms. Allocated memory is still 167.8MB. Free memory was 138.1MB in the beginning and 102.0MB in the end (delta: 36.2MB). Peak memory consumption was 37.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 124.59ms. Allocated memory is still 167.8MB. Free memory was 102.0MB in the beginning and 91.5MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Preprocessor took 129.19ms. Allocated memory is still 167.8MB. Free memory was 91.5MB in the beginning and 86.3MB in the end (delta: 5.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 22964.45ms. Allocated memory was 167.8MB in the beginning and 541.1MB in the end (delta: 373.3MB). Free memory was 85.9MB in the beginning and 345.4MB in the end (delta: -259.5MB). Peak memory consumption was 239.2MB. Max. memory is 16.1GB. * TraceAbstraction took 647.19ms. Allocated memory is still 541.1MB. Free memory was 344.3MB in the beginning and 312.9MB in the end (delta: 31.5MB). Peak memory consumption was 31.5MB. Max. memory is 16.1GB. * Witness Printer took 6.60ms. Allocated memory is still 541.1MB. Free memory was 311.8MB in the beginning and 311.8MB in the end (delta: 2.7kB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 20]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of bitwiseComplement at line 161, 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_45 mask_SORT_45 = (SORT_45)-1 >> (sizeof(SORT_45) * 8 - 3); [L35] const SORT_45 msb_SORT_45 = (SORT_45)1 << (3 - 1); [L37] const SORT_86 mask_SORT_86 = (SORT_86)-1 >> (sizeof(SORT_86) * 8 - 4); [L38] const SORT_86 msb_SORT_86 = (SORT_86)1 << (4 - 1); [L40] const SORT_143 mask_SORT_143 = (SORT_143)-1 >> (sizeof(SORT_143) * 8 - 32); [L41] const SORT_143 msb_SORT_143 = (SORT_143)1 << (32 - 1); [L43] const SORT_167 mask_SORT_167 = (SORT_167)-1 >> (sizeof(SORT_167) * 8 - 2); [L44] const SORT_167 msb_SORT_167 = (SORT_167)1 << (2 - 1); [L46] const SORT_3 var_7 = 0; [L47] const SORT_1 var_11 = 0; [L48] const SORT_1 var_20 = 1; [L49] const SORT_5 var_32 = 0; [L50] const SORT_45 var_46 = 0; [L51] const SORT_45 var_50 = 2; [L52] const SORT_45 var_54 = 1; [L53] const SORT_45 var_59 = 4; [L54] const SORT_45 var_61 = 5; [L55] const SORT_45 var_65 = 3; [L56] const SORT_3 var_73 = 2; [L57] const SORT_45 var_103 = 7; [L58] const SORT_45 var_108 = 6; [L59] const SORT_143 var_145 = 0; [L60] const SORT_3 var_176 = 31; [L62] SORT_1 input_2; [L63] SORT_3 input_4; [L64] SORT_5 input_6; [L65] SORT_3 input_164; [L66] SORT_3 input_165; [L67] SORT_3 input_166; [L68] SORT_3 input_175; [L69] SORT_3 input_185; [L70] SORT_3 input_186; [L71] SORT_3 input_187; [L72] SORT_3 input_190; [L73] SORT_3 input_209; [L74] SORT_3 input_210; [L75] SORT_3 input_211; [L76] SORT_3 input_214; [L77] SORT_3 input_216; [L78] SORT_167 input_230; [L79] SORT_167 input_231; [L80] SORT_167 input_232; [L82] SORT_3 state_8 = __VERIFIER_nondet_uchar() & mask_SORT_3; [L83] SORT_3 state_13 = __VERIFIER_nondet_uchar() & mask_SORT_3; [L84] SORT_3 state_24 = __VERIFIER_nondet_uchar() & mask_SORT_3; [L85] SORT_3 state_26 = __VERIFIER_nondet_uchar() & mask_SORT_3; [L86] SORT_3 state_28 = __VERIFIER_nondet_uchar() & mask_SORT_3; [L87] SORT_1 state_30 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L88] SORT_5 state_33 = __VERIFIER_nondet_ushort() & mask_SORT_5; [L89] SORT_3 state_35 = __VERIFIER_nondet_uchar() & mask_SORT_3; [L90] SORT_3 state_37 = __VERIFIER_nondet_uchar() & mask_SORT_3; [L91] SORT_3 state_39 = __VERIFIER_nondet_uchar() & mask_SORT_3; [L92] SORT_3 state_41 = __VERIFIER_nondet_uchar() & mask_SORT_3; [L93] SORT_3 state_43 = __VERIFIER_nondet_uchar() & mask_SORT_3; [L94] SORT_45 state_47 = __VERIFIER_nondet_uchar() & mask_SORT_45; [L96] SORT_3 init_9_arg_1 = var_7; [L97] state_8 = init_9_arg_1 [L98] SORT_3 init_14_arg_1 = var_7; [L99] state_13 = init_14_arg_1 [L100] SORT_3 init_25_arg_1 = var_7; [L101] state_24 = init_25_arg_1 [L102] SORT_3 init_27_arg_1 = var_7; [L103] state_26 = init_27_arg_1 [L104] SORT_3 init_29_arg_1 = var_7; [L105] state_28 = init_29_arg_1 [L106] SORT_1 init_31_arg_1 = var_11; [L107] state_30 = init_31_arg_1 [L108] SORT_5 init_34_arg_1 = var_32; [L109] state_33 = init_34_arg_1 [L110] SORT_3 init_36_arg_1 = var_7; [L111] state_35 = init_36_arg_1 [L112] SORT_3 init_38_arg_1 = var_7; [L113] state_37 = init_38_arg_1 [L114] SORT_3 init_40_arg_1 = var_7; [L115] state_39 = init_40_arg_1 [L116] SORT_3 init_42_arg_1 = var_7; [L117] state_41 = init_42_arg_1 [L118] SORT_3 init_44_arg_1 = var_7; [L119] state_43 = init_44_arg_1 [L120] SORT_45 init_48_arg_1 = var_46; [L121] state_47 = init_48_arg_1 VAL [init_14_arg_1=0, init_25_arg_1=0, init_27_arg_1=0, init_29_arg_1=0, init_31_arg_1=0, init_34_arg_1=0, init_36_arg_1=0, init_38_arg_1=0, init_40_arg_1=0, init_42_arg_1=0, init_44_arg_1=0, init_48_arg_1=0, init_9_arg_1=0, mask_SORT_1=1, mask_SORT_143=4294967295, mask_SORT_167=3, mask_SORT_3=31, mask_SORT_45=7, mask_SORT_5=4095, mask_SORT_86=15, msb_SORT_1=1, msb_SORT_143=2147483648, msb_SORT_167=2, msb_SORT_3=16, msb_SORT_45=4, msb_SORT_5=2048, msb_SORT_86=8, state_13=0, state_24=0, state_26=0, state_28=0, state_30=0, state_33=0, state_35=0, state_37=0, state_39=0, state_41=0, state_43=0, state_47=0, state_8=0, var_103=7, var_108=6, var_11=0, var_145=0, var_176=31, var_20=1, var_32=0, var_46=0, var_50=2, var_54=1, var_59=4, var_61=5, var_65=3, var_7=0, var_73=2] [L124] input_2 = __VERIFIER_nondet_uchar() [L125] input_4 = __VERIFIER_nondet_uchar() [L126] input_6 = __VERIFIER_nondet_ushort() [L127] input_164 = __VERIFIER_nondet_uchar() [L128] input_165 = __VERIFIER_nondet_uchar() [L129] input_166 = __VERIFIER_nondet_uchar() [L130] input_175 = __VERIFIER_nondet_uchar() [L131] input_185 = __VERIFIER_nondet_uchar() [L132] input_186 = __VERIFIER_nondet_uchar() [L133] input_187 = __VERIFIER_nondet_uchar() [L134] input_190 = __VERIFIER_nondet_uchar() [L135] input_209 = __VERIFIER_nondet_uchar() [L136] input_210 = __VERIFIER_nondet_uchar() [L137] input_211 = __VERIFIER_nondet_uchar() [L138] input_214 = __VERIFIER_nondet_uchar() [L139] input_216 = __VERIFIER_nondet_uchar() [L140] input_230 = __VERIFIER_nondet_uchar() [L141] input_231 = __VERIFIER_nondet_uchar() [L142] input_232 = __VERIFIER_nondet_uchar() [L145] SORT_3 var_10_arg_0 = state_8; [L146] SORT_1 var_10 = var_10_arg_0 >> 0; [L147] var_10 = var_10 & mask_SORT_1 [L148] SORT_1 var_12_arg_0 = var_10; [L149] SORT_1 var_12_arg_1 = var_11; [L150] SORT_1 var_12 = var_12_arg_0 == var_12_arg_1; [L151] SORT_3 var_15_arg_0 = state_13; [L152] SORT_1 var_15 = var_15_arg_0 >> 0; [L153] var_15 = var_15 & mask_SORT_1 [L154] SORT_1 var_16_arg_0 = var_15; [L155] SORT_1 var_16_arg_1 = var_11; [L156] SORT_1 var_16 = var_16_arg_0 == var_16_arg_1; [L157] SORT_1 var_17_arg_0 = var_12; [L158] SORT_1 var_17_arg_1 = var_16; [L159] SORT_1 var_17 = var_17_arg_0 & var_17_arg_1; [L160] SORT_1 var_21_arg_0 = var_17; [L161] SORT_1 var_21 = ~var_21_arg_0; [L162] SORT_1 var_22_arg_0 = var_20; [L163] SORT_1 var_22_arg_1 = var_21; [L164] SORT_1 var_22 = var_22_arg_0 & var_22_arg_1; [L165] var_22 = var_22 & mask_SORT_1 [L166] SORT_1 bad_23_arg_0 = var_22; [L167] CALL __VERIFIER_assert(!(bad_23_arg_0)) [L20] COND TRUE !(cond) VAL [\old(cond)=0, cond=0] [L20] reach_error() VAL [\old(cond)=0, cond=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 11 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.5s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=11occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 5 NumberOfCodeBlocks, 5 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-11-21 16:07:14,515 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_339f9fce-5b33-4369-9684-f69d88651a8e/bin/uautomizer-vX5HgA9Q3a/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_339f9fce-5b33-4369-9684-f69d88651a8e/bin/uautomizer-vX5HgA9Q3a/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_339f9fce-5b33-4369-9684-f69d88651a8e/bin/uautomizer-vX5HgA9Q3a/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_339f9fce-5b33-4369-9684-f69d88651a8e/bin/uautomizer-vX5HgA9Q3a/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_339f9fce-5b33-4369-9684-f69d88651a8e/bin/uautomizer-vX5HgA9Q3a/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_arrays_vsaR_p02.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_339f9fce-5b33-4369-9684-f69d88651a8e/bin/uautomizer-vX5HgA9Q3a/config/svcomp-Reach-64bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_339f9fce-5b33-4369-9684-f69d88651a8e/bin/uautomizer-vX5HgA9Q3a --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 2f1d80befaa77be0a079109a635df23085fa7ccf7b1b752044bebae6779c0281 --- 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-b5237d8 [2022-11-21 16:07:17,488 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-21 16:07:17,491 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-21 16:07:17,519 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-21 16:07:17,520 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-21 16:07:17,521 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-21 16:07:17,523 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-21 16:07:17,525 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-21 16:07:17,527 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-21 16:07:17,528 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-21 16:07:17,529 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-21 16:07:17,531 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-21 16:07:17,531 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-21 16:07:17,533 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-21 16:07:17,534 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-21 16:07:17,536 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-21 16:07:17,537 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-21 16:07:17,538 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-21 16:07:17,541 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-21 16:07:17,543 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-21 16:07:17,545 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-21 16:07:17,552 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-21 16:07:17,562 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-21 16:07:17,563 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-21 16:07:17,568 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-21 16:07:17,573 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-21 16:07:17,573 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-21 16:07:17,575 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-21 16:07:17,575 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-21 16:07:17,578 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-21 16:07:17,580 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-21 16:07:17,581 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-21 16:07:17,582 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-21 16:07:17,584 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-21 16:07:17,616 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-21 16:07:17,616 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-21 16:07:17,617 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-21 16:07:17,618 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-21 16:07:17,618 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-21 16:07:17,619 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-21 16:07:17,620 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-21 16:07:17,623 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_339f9fce-5b33-4369-9684-f69d88651a8e/bin/uautomizer-vX5HgA9Q3a/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2022-11-21 16:07:17,670 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-21 16:07:17,671 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-21 16:07:17,671 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-21 16:07:17,671 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-21 16:07:17,672 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-21 16:07:17,672 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-21 16:07:17,673 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-21 16:07:17,673 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-21 16:07:17,674 INFO L138 SettingsManager]: * Use SBE=true [2022-11-21 16:07:17,674 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-21 16:07:17,674 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-21 16:07:17,674 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-21 16:07:17,675 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-21 16:07:17,678 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-21 16:07:17,679 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-21 16:07:17,679 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-21 16:07:17,679 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-21 16:07:17,679 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-21 16:07:17,680 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-21 16:07:17,680 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-21 16:07:17,680 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-21 16:07:17,680 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-21 16:07:17,681 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-21 16:07:17,681 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-21 16:07:17,682 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-21 16:07:17,682 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-21 16:07:17,682 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-21 16:07:17,682 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-11-21 16:07:17,683 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-21 16:07:17,684 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-21 16:07:17,684 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-21 16:07:17,684 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-21 16:07:17,684 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-21 16:07:17,685 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_339f9fce-5b33-4369-9684-f69d88651a8e/bin/uautomizer-vX5HgA9Q3a/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_339f9fce-5b33-4369-9684-f69d88651a8e/bin/uautomizer-vX5HgA9Q3a Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2f1d80befaa77be0a079109a635df23085fa7ccf7b1b752044bebae6779c0281 [2022-11-21 16:07:18,171 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-21 16:07:18,206 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-21 16:07:18,209 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-21 16:07:18,211 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-21 16:07:18,213 INFO L275 PluginConnector]: CDTParser initialized [2022-11-21 16:07:18,215 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_339f9fce-5b33-4369-9684-f69d88651a8e/bin/uautomizer-vX5HgA9Q3a/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_arrays_vsaR_p02.c [2022-11-21 16:07:21,735 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-21 16:07:22,123 INFO L351 CDTParser]: Found 1 translation units. [2022-11-21 16:07:22,124 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_339f9fce-5b33-4369-9684-f69d88651a8e/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_arrays_vsaR_p02.c [2022-11-21 16:07:22,147 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_339f9fce-5b33-4369-9684-f69d88651a8e/bin/uautomizer-vX5HgA9Q3a/data/131408855/ef8149f3e39648ef8fa76322e0f1533b/FLAGf710d91f0 [2022-11-21 16:07:22,175 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_339f9fce-5b33-4369-9684-f69d88651a8e/bin/uautomizer-vX5HgA9Q3a/data/131408855/ef8149f3e39648ef8fa76322e0f1533b [2022-11-21 16:07:22,182 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-21 16:07:22,187 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-21 16:07:22,191 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-21 16:07:22,191 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-21 16:07:22,196 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-21 16:07:22,197 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 04:07:22" (1/1) ... [2022-11-21 16:07:22,198 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@69703965 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:07:22, skipping insertion in model container [2022-11-21 16:07:22,199 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 04:07:22" (1/1) ... [2022-11-21 16:07:22,209 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-21 16:07:22,294 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-21 16:07:22,494 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_339f9fce-5b33-4369-9684-f69d88651a8e/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_arrays_vsaR_p02.c[1107,1120] [2022-11-21 16:07:22,860 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 16:07:22,868 INFO L203 MainTranslator]: Completed pre-run [2022-11-21 16:07:22,881 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_339f9fce-5b33-4369-9684-f69d88651a8e/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_arrays_vsaR_p02.c[1107,1120] [2022-11-21 16:07:23,084 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 16:07:23,108 INFO L208 MainTranslator]: Completed translation [2022-11-21 16:07:23,109 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:07:23 WrapperNode [2022-11-21 16:07:23,109 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-21 16:07:23,112 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-21 16:07:23,112 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-21 16:07:23,113 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-21 16:07:23,122 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:07:23" (1/1) ... [2022-11-21 16:07:23,175 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:07:23" (1/1) ... [2022-11-21 16:07:23,269 INFO L138 Inliner]: procedures = 11, calls = 3, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 1034 [2022-11-21 16:07:23,270 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-21 16:07:23,271 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-21 16:07:23,271 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-21 16:07:23,271 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-21 16:07:23,283 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:07:23" (1/1) ... [2022-11-21 16:07:23,292 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:07:23" (1/1) ... [2022-11-21 16:07:23,300 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:07:23" (1/1) ... [2022-11-21 16:07:23,315 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:07:23" (1/1) ... [2022-11-21 16:07:23,390 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:07:23" (1/1) ... [2022-11-21 16:07:23,395 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:07:23" (1/1) ... [2022-11-21 16:07:23,411 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:07:23" (1/1) ... [2022-11-21 16:07:23,416 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:07:23" (1/1) ... [2022-11-21 16:07:23,426 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-21 16:07:23,432 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-21 16:07:23,433 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-21 16:07:23,434 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-21 16:07:23,435 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:07:23" (1/1) ... [2022-11-21 16:07:23,443 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-21 16:07:23,456 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_339f9fce-5b33-4369-9684-f69d88651a8e/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 16:07:23,477 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_339f9fce-5b33-4369-9684-f69d88651a8e/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-21 16:07:23,491 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_339f9fce-5b33-4369-9684-f69d88651a8e/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-21 16:07:23,535 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-21 16:07:23,535 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-21 16:07:23,974 INFO L235 CfgBuilder]: Building ICFG [2022-11-21 16:07:23,977 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-21 16:07:25,670 INFO L276 CfgBuilder]: Performing block encoding [2022-11-21 16:07:25,677 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-21 16:07:25,677 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-21 16:07:25,679 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 04:07:25 BoogieIcfgContainer [2022-11-21 16:07:25,679 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-21 16:07:25,682 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-21 16:07:25,682 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-21 16:07:25,686 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-21 16:07:25,686 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 04:07:22" (1/3) ... [2022-11-21 16:07:25,687 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5070f4fd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 04:07:25, skipping insertion in model container [2022-11-21 16:07:25,687 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:07:23" (2/3) ... [2022-11-21 16:07:25,688 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5070f4fd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 04:07:25, skipping insertion in model container [2022-11-21 16:07:25,688 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 04:07:25" (3/3) ... [2022-11-21 16:07:25,689 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.vis_arrays_vsaR_p02.c [2022-11-21 16:07:25,711 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-21 16:07:25,711 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-21 16:07:25,788 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-21 16:07:25,799 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;@207cd7be, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-21 16:07:25,800 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-21 16:07:25,805 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) [2022-11-21 16:07:25,813 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-21 16:07:25,813 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:07:25,814 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-11-21 16:07:25,816 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 16:07:25,825 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:07:25,826 INFO L85 PathProgramCache]: Analyzing trace with hash 28698761, now seen corresponding path program 1 times [2022-11-21 16:07:25,844 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-21 16:07:25,845 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1548207337] [2022-11-21 16:07:25,845 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:07:25,846 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 [2022-11-21 16:07:25,846 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_339f9fce-5b33-4369-9684-f69d88651a8e/bin/uautomizer-vX5HgA9Q3a/mathsat [2022-11-21 16:07:25,853 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_339f9fce-5b33-4369-9684-f69d88651a8e/bin/uautomizer-vX5HgA9Q3a/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) [2022-11-21 16:07:25,892 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_339f9fce-5b33-4369-9684-f69d88651a8e/bin/uautomizer-vX5HgA9Q3a/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 [2022-11-21 16:07:26,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:07:26,186 INFO L263 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 28 conjunts are in the unsatisfiable core [2022-11-21 16:07:26,198 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 16:07:26,432 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:07:26,433 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-21 16:07:26,434 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-21 16:07:26,434 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1548207337] [2022-11-21 16:07:26,435 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1548207337] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:07:26,435 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:07:26,436 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-21 16:07:26,438 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [446674766] [2022-11-21 16:07:26,439 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:07:26,444 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-21 16:07:26,445 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-21 16:07:26,498 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-21 16:07:26,499 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-21 16:07:26,502 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) [2022-11-21 16:07:26,703 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:07:26,703 INFO L93 Difference]: Finished difference Result 20 states and 30 transitions. [2022-11-21 16:07:26,704 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-21 16:07:26,706 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 [2022-11-21 16:07:26,706 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 16:07:26,714 INFO L225 Difference]: With dead ends: 20 [2022-11-21 16:07:26,714 INFO L226 Difference]: Without dead ends: 11 [2022-11-21 16:07:26,717 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 [2022-11-21 16:07:26,721 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 4 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 13 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-21 16:07:26,722 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 13 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-21 16:07:26,739 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2022-11-21 16:07:26,749 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 9. [2022-11-21 16:07:26,751 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) [2022-11-21 16:07:26,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2022-11-21 16:07:26,753 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 5 [2022-11-21 16:07:26,753 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 16:07:26,754 INFO L495 AbstractCegarLoop]: Abstraction has 9 states and 9 transitions. [2022-11-21 16:07:26,754 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) [2022-11-21 16:07:26,754 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2022-11-21 16:07:26,755 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-21 16:07:26,755 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:07:26,755 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2022-11-21 16:07:26,778 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_339f9fce-5b33-4369-9684-f69d88651a8e/bin/uautomizer-vX5HgA9Q3a/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 [2022-11-21 16:07:26,979 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_339f9fce-5b33-4369-9684-f69d88651a8e/bin/uautomizer-vX5HgA9Q3a/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 [2022-11-21 16:07:26,980 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 16:07:26,981 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:07:26,981 INFO L85 PathProgramCache]: Analyzing trace with hash 271073635, now seen corresponding path program 1 times [2022-11-21 16:07:26,984 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-21 16:07:26,985 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [805814763] [2022-11-21 16:07:26,985 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:07:26,985 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 [2022-11-21 16:07:26,986 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_339f9fce-5b33-4369-9684-f69d88651a8e/bin/uautomizer-vX5HgA9Q3a/mathsat [2022-11-21 16:07:26,987 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_339f9fce-5b33-4369-9684-f69d88651a8e/bin/uautomizer-vX5HgA9Q3a/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) [2022-11-21 16:07:27,013 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_339f9fce-5b33-4369-9684-f69d88651a8e/bin/uautomizer-vX5HgA9Q3a/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 [2022-11-21 16:07:27,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:07:27,655 INFO L263 TraceCheckSpWp]: Trace formula consists of 946 conjuncts, 50 conjunts are in the unsatisfiable core [2022-11-21 16:07:27,665 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 16:07:28,036 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:07:28,037 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-21 16:07:29,473 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:07:29,473 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-21 16:07:29,474 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [805814763] [2022-11-21 16:07:29,474 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [805814763] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-21 16:07:29,475 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-21 16:07:29,475 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2022-11-21 16:07:29,475 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [125662726] [2022-11-21 16:07:29,476 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-21 16:07:29,477 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-21 16:07:29,477 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-21 16:07:29,478 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-21 16:07:29,478 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2022-11-21 16:07:29,479 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) [2022-11-21 16:07:30,083 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:07:30,083 INFO L93 Difference]: Finished difference Result 16 states and 16 transitions. [2022-11-21 16:07:30,084 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-21 16:07:30,084 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 [2022-11-21 16:07:30,085 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 16:07:30,085 INFO L225 Difference]: With dead ends: 16 [2022-11-21 16:07:30,085 INFO L226 Difference]: Without dead ends: 14 [2022-11-21 16:07:30,086 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2022-11-21 16:07:30,087 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 11 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 21 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-21 16:07:30,088 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 21 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-21 16:07:30,089 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2022-11-21 16:07:30,093 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 12. [2022-11-21 16:07:30,093 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) [2022-11-21 16:07:30,094 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 12 transitions. [2022-11-21 16:07:30,094 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 12 transitions. Word has length 8 [2022-11-21 16:07:30,095 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 16:07:30,095 INFO L495 AbstractCegarLoop]: Abstraction has 12 states and 12 transitions. [2022-11-21 16:07:30,095 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) [2022-11-21 16:07:30,096 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 12 transitions. [2022-11-21 16:07:30,096 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-21 16:07:30,096 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:07:30,097 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1] [2022-11-21 16:07:30,125 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_339f9fce-5b33-4369-9684-f69d88651a8e/bin/uautomizer-vX5HgA9Q3a/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 [2022-11-21 16:07:30,315 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_339f9fce-5b33-4369-9684-f69d88651a8e/bin/uautomizer-vX5HgA9Q3a/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 [2022-11-21 16:07:30,316 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 16:07:30,317 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:07:30,317 INFO L85 PathProgramCache]: Analyzing trace with hash 1020920393, now seen corresponding path program 2 times [2022-11-21 16:07:30,320 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-21 16:07:30,320 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [272620212] [2022-11-21 16:07:30,320 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-21 16:07:30,320 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 [2022-11-21 16:07:30,320 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_339f9fce-5b33-4369-9684-f69d88651a8e/bin/uautomizer-vX5HgA9Q3a/mathsat [2022-11-21 16:07:30,323 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_339f9fce-5b33-4369-9684-f69d88651a8e/bin/uautomizer-vX5HgA9Q3a/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) [2022-11-21 16:07:30,343 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_339f9fce-5b33-4369-9684-f69d88651a8e/bin/uautomizer-vX5HgA9Q3a/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 [2022-11-21 16:07:31,390 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-21 16:07:31,390 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-21 16:07:31,445 INFO L263 TraceCheckSpWp]: Trace formula consists of 1792 conjuncts, 80 conjunts are in the unsatisfiable core [2022-11-21 16:07:31,463 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 16:07:32,165 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:07:32,165 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-21 16:07:36,038 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:07:36,039 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-21 16:07:36,039 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [272620212] [2022-11-21 16:07:36,044 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [272620212] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-21 16:07:36,045 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-21 16:07:36,045 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2022-11-21 16:07:36,045 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [536368415] [2022-11-21 16:07:36,046 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-21 16:07:36,046 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-21 16:07:36,046 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-21 16:07:36,047 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-21 16:07:36,048 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2022-11-21 16:07:36,049 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) [2022-11-21 16:07:36,842 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:07:36,842 INFO L93 Difference]: Finished difference Result 19 states and 19 transitions. [2022-11-21 16:07:36,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-21 16:07:36,843 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 [2022-11-21 16:07:36,844 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 16:07:36,844 INFO L225 Difference]: With dead ends: 19 [2022-11-21 16:07:36,844 INFO L226 Difference]: Without dead ends: 17 [2022-11-21 16:07:36,845 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=52, Invalid=130, Unknown=0, NotChecked=0, Total=182 [2022-11-21 16:07:36,846 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 23 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 18 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-21 16:07:36,847 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 18 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-21 16:07:36,848 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2022-11-21 16:07:36,854 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 15. [2022-11-21 16:07:36,855 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 14 states have (on average 1.0714285714285714) internal successors, (15), 14 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:07:36,855 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 15 transitions. [2022-11-21 16:07:36,856 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 15 transitions. Word has length 11 [2022-11-21 16:07:36,856 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 16:07:36,856 INFO L495 AbstractCegarLoop]: Abstraction has 15 states and 15 transitions. [2022-11-21 16:07:36,857 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) [2022-11-21 16:07:36,857 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 15 transitions. [2022-11-21 16:07:36,858 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-11-21 16:07:36,858 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:07:36,858 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1] [2022-11-21 16:07:36,889 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_339f9fce-5b33-4369-9684-f69d88651a8e/bin/uautomizer-vX5HgA9Q3a/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 [2022-11-21 16:07:37,071 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_339f9fce-5b33-4369-9684-f69d88651a8e/bin/uautomizer-vX5HgA9Q3a/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 [2022-11-21 16:07:37,072 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 16:07:37,072 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:07:37,073 INFO L85 PathProgramCache]: Analyzing trace with hash 1580781475, now seen corresponding path program 3 times [2022-11-21 16:07:37,078 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-21 16:07:37,079 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [163984500] [2022-11-21 16:07:37,079 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-21 16:07:37,080 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 [2022-11-21 16:07:37,080 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_339f9fce-5b33-4369-9684-f69d88651a8e/bin/uautomizer-vX5HgA9Q3a/mathsat [2022-11-21 16:07:37,083 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_339f9fce-5b33-4369-9684-f69d88651a8e/bin/uautomizer-vX5HgA9Q3a/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) [2022-11-21 16:07:37,094 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_339f9fce-5b33-4369-9684-f69d88651a8e/bin/uautomizer-vX5HgA9Q3a/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 [2022-11-21 16:07:38,567 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2022-11-21 16:07:38,567 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-21 16:07:38,646 INFO L263 TraceCheckSpWp]: Trace formula consists of 2638 conjuncts, 225 conjunts are in the unsatisfiable core [2022-11-21 16:07:38,672 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 16:07:57,907 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:07:57,907 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-21 16:12:27,320 WARN L233 SmtUtils]: Spent 1.99m on a formula simplification. DAG size of input: 1179 DAG size of output: 497 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)