./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vcegar_QF_BV_itc99_b13_p09.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4e7fbc69 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_707797cf-39c2-43f9-8b5a-1a9cec2684ce/bin/uautomizer-QkZJyEgLgS/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_707797cf-39c2-43f9-8b5a-1a9cec2684ce/bin/uautomizer-QkZJyEgLgS/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_707797cf-39c2-43f9-8b5a-1a9cec2684ce/bin/uautomizer-QkZJyEgLgS/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_707797cf-39c2-43f9-8b5a-1a9cec2684ce/bin/uautomizer-QkZJyEgLgS/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vcegar_QF_BV_itc99_b13_p09.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_707797cf-39c2-43f9-8b5a-1a9cec2684ce/bin/uautomizer-QkZJyEgLgS/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_707797cf-39c2-43f9-8b5a-1a9cec2684ce/bin/uautomizer-QkZJyEgLgS --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash d3cffd3df6054c12dbcd2cadadc764aeec3d6f47b1320e00f0a0148f3e6de8bc --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-4e7fbc6 [2022-11-23 02:45:57,756 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-23 02:45:57,759 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-23 02:45:57,789 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-23 02:45:57,790 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-23 02:45:57,791 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-23 02:45:57,793 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-23 02:45:57,794 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-23 02:45:57,796 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-23 02:45:57,797 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-23 02:45:57,798 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-23 02:45:57,802 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-23 02:45:57,802 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-23 02:45:57,808 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-23 02:45:57,812 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-23 02:45:57,815 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-23 02:45:57,817 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-23 02:45:57,819 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-23 02:45:57,821 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-23 02:45:57,827 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-23 02:45:57,830 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-23 02:45:57,835 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-23 02:45:57,837 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-23 02:45:57,840 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-23 02:45:57,844 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-23 02:45:57,850 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-23 02:45:57,851 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-23 02:45:57,852 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-23 02:45:57,854 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-23 02:45:57,855 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-23 02:45:57,856 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-23 02:45:57,857 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-23 02:45:57,858 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-23 02:45:57,860 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-23 02:45:57,862 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-23 02:45:57,863 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-23 02:45:57,863 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-23 02:45:57,864 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-23 02:45:57,864 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-23 02:45:57,866 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-23 02:45:57,867 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-23 02:45:57,868 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_707797cf-39c2-43f9-8b5a-1a9cec2684ce/bin/uautomizer-QkZJyEgLgS/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-11-23 02:45:57,910 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-23 02:45:57,911 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-23 02:45:57,911 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-23 02:45:57,912 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-23 02:45:57,913 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-23 02:45:57,913 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-23 02:45:57,914 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-23 02:45:57,914 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-23 02:45:57,914 INFO L138 SettingsManager]: * Use SBE=true [2022-11-23 02:45:57,915 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-23 02:45:57,916 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-23 02:45:57,916 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-23 02:45:57,916 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-23 02:45:57,917 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-23 02:45:57,917 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-23 02:45:57,917 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-23 02:45:57,917 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-23 02:45:57,918 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-23 02:45:57,918 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-23 02:45:57,918 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-23 02:45:57,918 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-23 02:45:57,919 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 02:45:57,919 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-23 02:45:57,919 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-23 02:45:57,920 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-23 02:45:57,920 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-23 02:45:57,920 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-23 02:45:57,920 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-23 02:45:57,920 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-23 02:45:57,921 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-11-23 02:45:57,921 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-23 02:45:57,922 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_707797cf-39c2-43f9-8b5a-1a9cec2684ce/bin/uautomizer-QkZJyEgLgS/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_707797cf-39c2-43f9-8b5a-1a9cec2684ce/bin/uautomizer-QkZJyEgLgS Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d3cffd3df6054c12dbcd2cadadc764aeec3d6f47b1320e00f0a0148f3e6de8bc [2022-11-23 02:45:58,184 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-23 02:45:58,221 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-23 02:45:58,224 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-23 02:45:58,226 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-23 02:45:58,226 INFO L275 PluginConnector]: CDTParser initialized [2022-11-23 02:45:58,228 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_707797cf-39c2-43f9-8b5a-1a9cec2684ce/bin/uautomizer-QkZJyEgLgS/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vcegar_QF_BV_itc99_b13_p09.c [2022-11-23 02:46:01,321 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-23 02:46:01,513 INFO L351 CDTParser]: Found 1 translation units. [2022-11-23 02:46:01,514 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_707797cf-39c2-43f9-8b5a-1a9cec2684ce/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vcegar_QF_BV_itc99_b13_p09.c [2022-11-23 02:46:01,528 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_707797cf-39c2-43f9-8b5a-1a9cec2684ce/bin/uautomizer-QkZJyEgLgS/data/286234b61/ab419c50d9bf4fb0b1cd36409c23d76e/FLAG888404487 [2022-11-23 02:46:01,543 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_707797cf-39c2-43f9-8b5a-1a9cec2684ce/bin/uautomizer-QkZJyEgLgS/data/286234b61/ab419c50d9bf4fb0b1cd36409c23d76e [2022-11-23 02:46:01,546 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-23 02:46:01,547 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-23 02:46:01,549 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-23 02:46:01,549 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-23 02:46:01,553 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-23 02:46:01,554 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:46:01" (1/1) ... [2022-11-23 02:46:01,555 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@184d9944 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:46:01, skipping insertion in model container [2022-11-23 02:46:01,555 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:46:01" (1/1) ... [2022-11-23 02:46:01,563 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-23 02:46:01,584 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-23 02:46:01,725 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_707797cf-39c2-43f9-8b5a-1a9cec2684ce/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vcegar_QF_BV_itc99_b13_p09.c[1107,1120] [2022-11-23 02:46:01,786 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 02:46:01,791 INFO L203 MainTranslator]: Completed pre-run [2022-11-23 02:46:01,802 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_707797cf-39c2-43f9-8b5a-1a9cec2684ce/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vcegar_QF_BV_itc99_b13_p09.c[1107,1120] [2022-11-23 02:46:01,841 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 02:46:01,853 INFO L208 MainTranslator]: Completed translation [2022-11-23 02:46:01,854 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:46:01 WrapperNode [2022-11-23 02:46:01,854 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-23 02:46:01,855 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-23 02:46:01,856 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-23 02:46:01,856 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-23 02:46:01,865 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:46:01" (1/1) ... [2022-11-23 02:46:01,880 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:46:01" (1/1) ... [2022-11-23 02:46:01,915 INFO L138 Inliner]: procedures = 11, calls = 3, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 225 [2022-11-23 02:46:01,916 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-23 02:46:01,917 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-23 02:46:01,918 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-23 02:46:01,918 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-23 02:46:01,931 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:46:01" (1/1) ... [2022-11-23 02:46:01,932 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:46:01" (1/1) ... [2022-11-23 02:46:01,943 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:46:01" (1/1) ... [2022-11-23 02:46:01,943 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:46:01" (1/1) ... [2022-11-23 02:46:01,961 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:46:01" (1/1) ... [2022-11-23 02:46:01,965 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:46:01" (1/1) ... [2022-11-23 02:46:01,967 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:46:01" (1/1) ... [2022-11-23 02:46:01,968 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:46:01" (1/1) ... [2022-11-23 02:46:01,983 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-23 02:46:01,993 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-23 02:46:01,993 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-23 02:46:01,993 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-23 02:46:01,994 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:46:01" (1/1) ... [2022-11-23 02:46:02,004 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 02:46:02,017 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_707797cf-39c2-43f9-8b5a-1a9cec2684ce/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 02:46:02,029 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_707797cf-39c2-43f9-8b5a-1a9cec2684ce/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-23 02:46:02,032 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_707797cf-39c2-43f9-8b5a-1a9cec2684ce/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-23 02:46:02,097 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-23 02:46:02,097 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-23 02:46:02,257 INFO L235 CfgBuilder]: Building ICFG [2022-11-23 02:46:02,260 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-23 02:46:02,804 INFO L276 CfgBuilder]: Performing block encoding [2022-11-23 02:46:02,811 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-23 02:46:02,811 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-23 02:46:02,813 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:46:02 BoogieIcfgContainer [2022-11-23 02:46:02,813 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-23 02:46:02,815 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-23 02:46:02,816 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-23 02:46:02,820 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-23 02:46:02,820 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 02:46:01" (1/3) ... [2022-11-23 02:46:02,821 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@858ddb7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:46:02, skipping insertion in model container [2022-11-23 02:46:02,821 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:46:01" (2/3) ... [2022-11-23 02:46:02,821 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@858ddb7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:46:02, skipping insertion in model container [2022-11-23 02:46:02,821 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:46:02" (3/3) ... [2022-11-23 02:46:02,823 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.vcegar_QF_BV_itc99_b13_p09.c [2022-11-23 02:46:02,844 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-23 02:46:02,844 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-23 02:46:02,913 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-23 02:46:02,920 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;@1aea5dee, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-23 02:46:02,921 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-23 02:46:02,925 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) [2022-11-23 02:46:02,931 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-23 02:46:02,932 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 02:46:02,932 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-11-23 02:46:02,933 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 02:46:02,939 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 02:46:02,939 INFO L85 PathProgramCache]: Analyzing trace with hash 28698761, now seen corresponding path program 1 times [2022-11-23 02:46:02,949 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 02:46:02,950 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [682973092] [2022-11-23 02:46:02,950 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 02:46:02,950 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 02:46:03,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-23 02:46:03,233 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-23 02:46:03,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-23 02:46:03,370 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-23 02:46:03,372 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-23 02:46:03,374 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-23 02:46:03,376 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-23 02:46:03,381 INFO L444 BasicCegarLoop]: Path program histogram: [1] [2022-11-23 02:46:03,385 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-23 02:46:03,430 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2022-11-23 02:46:03,439 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 02:46:03 BoogieIcfgContainer [2022-11-23 02:46:03,439 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-23 02:46:03,442 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-23 02:46:03,442 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-23 02:46:03,442 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-23 02:46:03,443 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:46:02" (3/4) ... [2022-11-23 02:46:03,449 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-23 02:46:03,449 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-23 02:46:03,451 INFO L158 Benchmark]: Toolchain (without parser) took 1903.37ms. Allocated memory is still 178.3MB. Free memory was 140.4MB in the beginning and 124.6MB in the end (delta: 15.8MB). Peak memory consumption was 16.4MB. Max. memory is 16.1GB. [2022-11-23 02:46:03,451 INFO L158 Benchmark]: CDTParser took 0.25ms. Allocated memory is still 142.6MB. Free memory is still 83.0MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-23 02:46:03,452 INFO L158 Benchmark]: CACSL2BoogieTranslator took 305.90ms. Allocated memory is still 178.3MB. Free memory was 139.8MB in the beginning and 126.6MB in the end (delta: 13.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-11-23 02:46:03,452 INFO L158 Benchmark]: Boogie Procedure Inliner took 61.25ms. Allocated memory is still 178.3MB. Free memory was 126.6MB in the beginning and 123.6MB in the end (delta: 3.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-23 02:46:03,453 INFO L158 Benchmark]: Boogie Preprocessor took 66.03ms. Allocated memory is still 178.3MB. Free memory was 123.6MB in the beginning and 121.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-23 02:46:03,454 INFO L158 Benchmark]: RCFGBuilder took 820.36ms. Allocated memory is still 178.3MB. Free memory was 121.5MB in the beginning and 89.5MB in the end (delta: 32.0MB). Peak memory consumption was 31.5MB. Max. memory is 16.1GB. [2022-11-23 02:46:03,455 INFO L158 Benchmark]: TraceAbstraction took 624.12ms. Allocated memory is still 178.3MB. Free memory was 88.9MB in the beginning and 125.6MB in the end (delta: -36.7MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-23 02:46:03,455 INFO L158 Benchmark]: Witness Printer took 7.70ms. Allocated memory is still 178.3MB. Free memory was 125.6MB in the beginning and 124.6MB in the end (delta: 998.6kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-23 02:46:03,458 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25ms. Allocated memory is still 142.6MB. Free memory is still 83.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 305.90ms. Allocated memory is still 178.3MB. Free memory was 139.8MB in the beginning and 126.6MB in the end (delta: 13.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 61.25ms. Allocated memory is still 178.3MB. Free memory was 126.6MB in the beginning and 123.6MB in the end (delta: 3.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 66.03ms. Allocated memory is still 178.3MB. Free memory was 123.6MB in the beginning and 121.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 820.36ms. Allocated memory is still 178.3MB. Free memory was 121.5MB in the beginning and 89.5MB in the end (delta: 32.0MB). Peak memory consumption was 31.5MB. Max. memory is 16.1GB. * TraceAbstraction took 624.12ms. Allocated memory is still 178.3MB. Free memory was 88.9MB in the beginning and 125.6MB in the end (delta: -36.7MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 7.70ms. Allocated memory is still 178.3MB. Free memory was 125.6MB in the beginning and 124.6MB in the end (delta: 998.6kB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 20]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of bitwiseComplement at line 135, overapproximation of bitwiseOr at line 133, overapproximation of bitwiseAnd at line 120. 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 - 8); [L29] const SORT_3 msb_SORT_3 = (SORT_3)1 << (8 - 1); [L31] const SORT_10 mask_SORT_10 = (SORT_10)-1 >> (sizeof(SORT_10) * 8 - 32); [L32] const SORT_10 msb_SORT_10 = (SORT_10)1 << (32 - 1); [L34] const SORT_31 mask_SORT_31 = (SORT_31)-1 >> (sizeof(SORT_31) * 8 - 4); [L35] const SORT_31 msb_SORT_31 = (SORT_31)1 << (4 - 1); [L37] const SORT_67 mask_SORT_67 = (SORT_67)-1 >> (sizeof(SORT_67) * 8 - 10); [L38] const SORT_67 msb_SORT_67 = (SORT_67)1 << (10 - 1); [L40] const SORT_1 var_7 = 0; [L41] const SORT_10 var_12 = 0; [L42] const SORT_1 var_21 = 1; [L44] SORT_1 input_2; [L45] SORT_3 input_4; [L46] SORT_1 input_5; [L47] SORT_1 input_6; [L48] SORT_1 input_29; [L49] SORT_31 input_32; [L50] SORT_31 input_34; [L51] SORT_1 input_36; [L52] SORT_1 input_38; [L53] SORT_1 input_42; [L54] SORT_1 input_44; [L55] SORT_1 input_46; [L56] SORT_1 input_48; [L57] SORT_1 input_50; [L58] SORT_3 input_52; [L59] SORT_1 input_55; [L60] SORT_1 input_59; [L61] SORT_1 input_63; [L62] SORT_1 input_65; [L63] SORT_67 input_68; [L64] SORT_1 input_70; [L65] SORT_1 input_74; [L66] SORT_1 input_81; [L67] SORT_1 input_87; [L69] SORT_1 state_8 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L70] SORT_1 state_14 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L71] SORT_1 state_25 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L72] SORT_1 state_27 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L73] SORT_1 state_40 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L74] SORT_1 state_57 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L75] SORT_1 state_61 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L77] SORT_1 init_9_arg_1 = var_7; [L78] state_8 = init_9_arg_1 [L79] SORT_1 init_15_arg_1 = var_7; [L80] state_14 = init_15_arg_1 [L81] SORT_1 init_26_arg_1 = var_7; [L82] state_25 = init_26_arg_1 [L83] SORT_1 init_28_arg_1 = var_7; [L84] state_27 = init_28_arg_1 [L85] SORT_1 init_41_arg_1 = var_7; [L86] state_40 = init_41_arg_1 [L87] SORT_1 init_58_arg_1 = var_7; [L88] state_57 = init_58_arg_1 [L89] SORT_1 init_62_arg_1 = var_7; [L90] state_61 = init_62_arg_1 VAL [init_15_arg_1=0, init_26_arg_1=0, init_28_arg_1=0, init_41_arg_1=0, init_58_arg_1=0, init_62_arg_1=0, init_9_arg_1=0, mask_SORT_1=1, mask_SORT_10=4294967295, mask_SORT_3=255, mask_SORT_31=15, mask_SORT_67=1023, msb_SORT_1=1, msb_SORT_10=2147483648, msb_SORT_3=128, msb_SORT_31=8, msb_SORT_67=512, state_14=0, state_25=0, state_27=0, state_40=0, state_57=0, state_61=0, state_8=0, var_12=0, var_21=1, var_7=0] [L93] input_2 = __VERIFIER_nondet_uchar() [L94] input_4 = __VERIFIER_nondet_uchar() [L95] input_5 = __VERIFIER_nondet_uchar() [L96] input_6 = __VERIFIER_nondet_uchar() [L97] input_29 = __VERIFIER_nondet_uchar() [L98] input_32 = __VERIFIER_nondet_uchar() [L99] input_34 = __VERIFIER_nondet_uchar() [L100] input_36 = __VERIFIER_nondet_uchar() [L101] input_38 = __VERIFIER_nondet_uchar() [L102] input_42 = __VERIFIER_nondet_uchar() [L103] input_44 = __VERIFIER_nondet_uchar() [L104] input_46 = __VERIFIER_nondet_uchar() [L105] input_48 = __VERIFIER_nondet_uchar() [L106] input_50 = __VERIFIER_nondet_uchar() [L107] input_52 = __VERIFIER_nondet_uchar() [L108] input_55 = __VERIFIER_nondet_uchar() [L109] input_59 = __VERIFIER_nondet_uchar() [L110] input_63 = __VERIFIER_nondet_uchar() [L111] input_65 = __VERIFIER_nondet_uchar() [L112] input_68 = __VERIFIER_nondet_ushort() [L113] input_70 = __VERIFIER_nondet_uchar() [L114] input_74 = __VERIFIER_nondet_uchar() [L115] input_81 = __VERIFIER_nondet_uchar() [L116] input_87 = __VERIFIER_nondet_uchar() [L119] SORT_1 var_11_arg_0 = state_8; [L120] var_11_arg_0 = var_11_arg_0 & mask_SORT_1 [L121] SORT_10 var_11 = var_11_arg_0; [L122] SORT_10 var_13_arg_0 = var_11; [L123] SORT_10 var_13_arg_1 = var_12; [L124] SORT_1 var_13 = var_13_arg_0 == var_13_arg_1; [L125] SORT_1 var_16_arg_0 = state_14; [L126] var_16_arg_0 = var_16_arg_0 & mask_SORT_1 [L127] SORT_10 var_16 = var_16_arg_0; [L128] SORT_10 var_17_arg_0 = var_16; [L129] SORT_10 var_17_arg_1 = var_12; [L130] SORT_1 var_17 = var_17_arg_0 == var_17_arg_1; [L131] SORT_1 var_18_arg_0 = var_13; [L132] SORT_1 var_18_arg_1 = var_17; [L133] SORT_1 var_18 = var_18_arg_0 | var_18_arg_1; [L134] SORT_1 var_22_arg_0 = var_18; [L135] SORT_1 var_22 = ~var_22_arg_0; [L136] SORT_1 var_23_arg_0 = var_21; [L137] SORT_1 var_23_arg_1 = var_22; [L138] SORT_1 var_23 = var_23_arg_0 & var_23_arg_1; [L139] var_23 = var_23 & mask_SORT_1 [L140] SORT_1 bad_24_arg_0 = var_23; [L141] CALL __VERIFIER_assert(!(bad_24_arg_0)) [L20] COND TRUE !(cond) VAL [cond=0, unknown-#in~cond-unknown=0] [L20] reach_error() VAL [cond=0, unknown-#in~cond-unknown=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 11 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.5s, 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, 0.2s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 5 NumberOfCodeBlocks, 5 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-11-23 02:46:03,485 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_707797cf-39c2-43f9-8b5a-1a9cec2684ce/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_707797cf-39c2-43f9-8b5a-1a9cec2684ce/bin/uautomizer-QkZJyEgLgS/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_707797cf-39c2-43f9-8b5a-1a9cec2684ce/bin/uautomizer-QkZJyEgLgS/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_707797cf-39c2-43f9-8b5a-1a9cec2684ce/bin/uautomizer-QkZJyEgLgS/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_707797cf-39c2-43f9-8b5a-1a9cec2684ce/bin/uautomizer-QkZJyEgLgS/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vcegar_QF_BV_itc99_b13_p09.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_707797cf-39c2-43f9-8b5a-1a9cec2684ce/bin/uautomizer-QkZJyEgLgS/config/svcomp-Reach-64bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_707797cf-39c2-43f9-8b5a-1a9cec2684ce/bin/uautomizer-QkZJyEgLgS --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash d3cffd3df6054c12dbcd2cadadc764aeec3d6f47b1320e00f0a0148f3e6de8bc --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-4e7fbc6 [2022-11-23 02:46:06,051 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-23 02:46:06,054 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-23 02:46:06,120 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-23 02:46:06,121 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-23 02:46:06,125 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-23 02:46:06,127 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-23 02:46:06,131 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-23 02:46:06,138 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-23 02:46:06,144 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-23 02:46:06,146 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-23 02:46:06,148 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-23 02:46:06,149 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-23 02:46:06,152 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-23 02:46:06,153 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-23 02:46:06,161 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-23 02:46:06,162 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-23 02:46:06,163 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-23 02:46:06,165 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-23 02:46:06,170 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-23 02:46:06,172 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-23 02:46:06,175 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-23 02:46:06,176 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-23 02:46:06,177 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-23 02:46:06,188 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-23 02:46:06,188 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-23 02:46:06,188 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-23 02:46:06,191 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-23 02:46:06,191 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-23 02:46:06,193 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-23 02:46:06,193 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-23 02:46:06,194 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-23 02:46:06,196 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-23 02:46:06,197 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-23 02:46:06,198 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-23 02:46:06,198 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-23 02:46:06,199 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-23 02:46:06,199 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-23 02:46:06,199 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-23 02:46:06,200 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-23 02:46:06,201 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-23 02:46:06,202 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_707797cf-39c2-43f9-8b5a-1a9cec2684ce/bin/uautomizer-QkZJyEgLgS/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2022-11-23 02:46:06,242 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-23 02:46:06,243 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-23 02:46:06,244 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-23 02:46:06,244 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-23 02:46:06,245 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-23 02:46:06,246 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-23 02:46:06,246 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-23 02:46:06,247 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-23 02:46:06,247 INFO L138 SettingsManager]: * Use SBE=true [2022-11-23 02:46:06,247 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-23 02:46:06,248 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-23 02:46:06,249 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-23 02:46:06,249 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-23 02:46:06,249 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-23 02:46:06,249 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-23 02:46:06,249 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-23 02:46:06,250 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-23 02:46:06,250 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-23 02:46:06,250 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-23 02:46:06,250 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-23 02:46:06,251 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-23 02:46:06,251 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-23 02:46:06,251 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-23 02:46:06,251 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 02:46:06,251 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-23 02:46:06,252 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-23 02:46:06,252 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-23 02:46:06,252 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-11-23 02:46:06,252 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-23 02:46:06,253 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-23 02:46:06,253 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-23 02:46:06,253 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-11-23 02:46:06,253 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-23 02:46:06,254 INFO L138 SettingsManager]: * Logic for external solver=AUFBV [2022-11-23 02:46:06,254 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_707797cf-39c2-43f9-8b5a-1a9cec2684ce/bin/uautomizer-QkZJyEgLgS/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_707797cf-39c2-43f9-8b5a-1a9cec2684ce/bin/uautomizer-QkZJyEgLgS Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d3cffd3df6054c12dbcd2cadadc764aeec3d6f47b1320e00f0a0148f3e6de8bc [2022-11-23 02:46:06,661 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-23 02:46:06,695 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-23 02:46:06,698 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-23 02:46:06,699 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-23 02:46:06,701 INFO L275 PluginConnector]: CDTParser initialized [2022-11-23 02:46:06,702 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_707797cf-39c2-43f9-8b5a-1a9cec2684ce/bin/uautomizer-QkZJyEgLgS/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vcegar_QF_BV_itc99_b13_p09.c [2022-11-23 02:46:09,942 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-23 02:46:10,194 INFO L351 CDTParser]: Found 1 translation units. [2022-11-23 02:46:10,194 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_707797cf-39c2-43f9-8b5a-1a9cec2684ce/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vcegar_QF_BV_itc99_b13_p09.c [2022-11-23 02:46:10,202 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_707797cf-39c2-43f9-8b5a-1a9cec2684ce/bin/uautomizer-QkZJyEgLgS/data/6aafd1bd5/e80e095710a3489fb94f2025134ca3aa/FLAGe1263c20c [2022-11-23 02:46:10,218 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_707797cf-39c2-43f9-8b5a-1a9cec2684ce/bin/uautomizer-QkZJyEgLgS/data/6aafd1bd5/e80e095710a3489fb94f2025134ca3aa [2022-11-23 02:46:10,221 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-23 02:46:10,222 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-23 02:46:10,224 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-23 02:46:10,224 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-23 02:46:10,228 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-23 02:46:10,229 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:46:10" (1/1) ... [2022-11-23 02:46:10,230 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@35c4a0f3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:46:10, skipping insertion in model container [2022-11-23 02:46:10,230 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:46:10" (1/1) ... [2022-11-23 02:46:10,238 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-23 02:46:10,261 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-23 02:46:10,396 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_707797cf-39c2-43f9-8b5a-1a9cec2684ce/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vcegar_QF_BV_itc99_b13_p09.c[1107,1120] [2022-11-23 02:46:10,467 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 02:46:10,473 INFO L203 MainTranslator]: Completed pre-run [2022-11-23 02:46:10,485 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_707797cf-39c2-43f9-8b5a-1a9cec2684ce/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vcegar_QF_BV_itc99_b13_p09.c[1107,1120] [2022-11-23 02:46:10,521 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 02:46:10,543 INFO L208 MainTranslator]: Completed translation [2022-11-23 02:46:10,543 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:46:10 WrapperNode [2022-11-23 02:46:10,543 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-23 02:46:10,544 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-23 02:46:10,544 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-23 02:46:10,544 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-23 02:46:10,553 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:46:10" (1/1) ... [2022-11-23 02:46:10,577 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:46:10" (1/1) ... [2022-11-23 02:46:10,618 INFO L138 Inliner]: procedures = 11, calls = 3, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 225 [2022-11-23 02:46:10,619 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-23 02:46:10,620 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-23 02:46:10,620 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-23 02:46:10,620 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-23 02:46:10,662 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:46:10" (1/1) ... [2022-11-23 02:46:10,663 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:46:10" (1/1) ... [2022-11-23 02:46:10,675 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:46:10" (1/1) ... [2022-11-23 02:46:10,676 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:46:10" (1/1) ... [2022-11-23 02:46:10,699 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:46:10" (1/1) ... [2022-11-23 02:46:10,703 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:46:10" (1/1) ... [2022-11-23 02:46:10,704 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:46:10" (1/1) ... [2022-11-23 02:46:10,706 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:46:10" (1/1) ... [2022-11-23 02:46:10,719 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-23 02:46:10,719 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-23 02:46:10,720 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-23 02:46:10,720 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-23 02:46:10,720 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:46:10" (1/1) ... [2022-11-23 02:46:10,738 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 02:46:10,754 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_707797cf-39c2-43f9-8b5a-1a9cec2684ce/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 02:46:10,767 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_707797cf-39c2-43f9-8b5a-1a9cec2684ce/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-23 02:46:10,797 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_707797cf-39c2-43f9-8b5a-1a9cec2684ce/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-23 02:46:10,820 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-23 02:46:10,820 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-23 02:46:10,998 INFO L235 CfgBuilder]: Building ICFG [2022-11-23 02:46:11,000 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-23 02:46:11,286 INFO L276 CfgBuilder]: Performing block encoding [2022-11-23 02:46:11,293 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-23 02:46:11,293 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-23 02:46:11,296 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:46:11 BoogieIcfgContainer [2022-11-23 02:46:11,296 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-23 02:46:11,299 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-23 02:46:11,299 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-23 02:46:11,303 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-23 02:46:11,303 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 02:46:10" (1/3) ... [2022-11-23 02:46:11,304 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6221ea6a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:46:11, skipping insertion in model container [2022-11-23 02:46:11,304 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:46:10" (2/3) ... [2022-11-23 02:46:11,305 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6221ea6a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:46:11, skipping insertion in model container [2022-11-23 02:46:11,305 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:46:11" (3/3) ... [2022-11-23 02:46:11,307 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.vcegar_QF_BV_itc99_b13_p09.c [2022-11-23 02:46:11,328 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-23 02:46:11,328 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-23 02:46:11,377 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-23 02:46:11,385 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;@bfb5ec0, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-23 02:46:11,385 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-23 02:46:11,389 INFO L276 IsEmpty]: Start isEmpty. Operand has 11 states, 9 states have (on average 1.4444444444444444) internal successors, (13), 10 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 02:46:11,395 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-23 02:46:11,396 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 02:46:11,396 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-11-23 02:46:11,397 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 02:46:11,403 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 02:46:11,403 INFO L85 PathProgramCache]: Analyzing trace with hash 28698761, now seen corresponding path program 1 times [2022-11-23 02:46:11,416 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-23 02:46:11,417 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [486401939] [2022-11-23 02:46:11,417 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 02:46:11,418 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 02:46:11,418 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_707797cf-39c2-43f9-8b5a-1a9cec2684ce/bin/uautomizer-QkZJyEgLgS/mathsat [2022-11-23 02:46:11,425 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_707797cf-39c2-43f9-8b5a-1a9cec2684ce/bin/uautomizer-QkZJyEgLgS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-23 02:46:11,431 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_707797cf-39c2-43f9-8b5a-1a9cec2684ce/bin/uautomizer-QkZJyEgLgS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-11-23 02:46:11,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 02:46:11,599 INFO L263 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 20 conjunts are in the unsatisfiable core [2022-11-23 02:46:11,611 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 02:46:11,822 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 02:46:11,823 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 02:46:11,824 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-23 02:46:11,825 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [486401939] [2022-11-23 02:46:11,825 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [486401939] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 02:46:11,826 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 02:46:11,826 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-23 02:46:11,828 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [822426616] [2022-11-23 02:46:11,829 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 02:46:11,833 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-23 02:46:11,833 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-23 02:46:11,871 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-23 02:46:11,871 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-23 02:46:11,874 INFO L87 Difference]: Start difference. First operand has 11 states, 9 states have (on average 1.4444444444444444) internal successors, (13), 10 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 02:46:11,945 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 02:46:11,945 INFO L93 Difference]: Finished difference Result 20 states and 30 transitions. [2022-11-23 02:46:11,947 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-23 02:46:11,948 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2022-11-23 02:46:11,949 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 02:46:11,957 INFO L225 Difference]: With dead ends: 20 [2022-11-23 02:46:11,958 INFO L226 Difference]: Without dead ends: 11 [2022-11-23 02:46:11,960 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-23 02:46:11,966 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 4 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s 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, 0.0s IncrementalHoareTripleChecker+Time [2022-11-23 02:46:11,968 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 13 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-23 02:46:11,987 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2022-11-23 02:46:11,998 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 9. [2022-11-23 02:46:12,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 8 states have (on average 1.125) internal successors, (9), 8 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 02:46:12,001 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2022-11-23 02:46:12,003 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 5 [2022-11-23 02:46:12,003 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 02:46:12,004 INFO L495 AbstractCegarLoop]: Abstraction has 9 states and 9 transitions. [2022-11-23 02:46:12,004 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 02:46:12,015 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2022-11-23 02:46:12,016 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-23 02:46:12,016 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 02:46:12,016 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2022-11-23 02:46:12,041 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_707797cf-39c2-43f9-8b5a-1a9cec2684ce/bin/uautomizer-QkZJyEgLgS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-11-23 02:46:12,227 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_707797cf-39c2-43f9-8b5a-1a9cec2684ce/bin/uautomizer-QkZJyEgLgS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 02:46:12,228 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 02:46:12,229 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 02:46:12,229 INFO L85 PathProgramCache]: Analyzing trace with hash 271073635, now seen corresponding path program 1 times [2022-11-23 02:46:12,230 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-23 02:46:12,230 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [141328368] [2022-11-23 02:46:12,230 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 02:46:12,231 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 02:46:12,231 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_707797cf-39c2-43f9-8b5a-1a9cec2684ce/bin/uautomizer-QkZJyEgLgS/mathsat [2022-11-23 02:46:12,232 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_707797cf-39c2-43f9-8b5a-1a9cec2684ce/bin/uautomizer-QkZJyEgLgS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-23 02:46:12,233 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_707797cf-39c2-43f9-8b5a-1a9cec2684ce/bin/uautomizer-QkZJyEgLgS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-11-23 02:46:12,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 02:46:12,385 INFO L263 TraceCheckSpWp]: Trace formula consists of 194 conjuncts, 31 conjunts are in the unsatisfiable core [2022-11-23 02:46:12,389 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 02:46:12,552 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 02:46:12,552 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 02:46:13,349 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 02:46:13,349 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-23 02:46:13,349 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [141328368] [2022-11-23 02:46:13,349 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [141328368] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 02:46:13,350 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-23 02:46:13,350 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2022-11-23 02:46:13,350 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [388891146] [2022-11-23 02:46:13,350 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-23 02:46:13,351 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-23 02:46:13,352 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-23 02:46:13,352 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-23 02:46:13,352 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2022-11-23 02:46:13,353 INFO L87 Difference]: Start difference. First operand 9 states and 9 transitions. Second operand has 8 states, 8 states have (on average 1.75) internal successors, (14), 8 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 02:46:13,461 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 02:46:13,461 INFO L93 Difference]: Finished difference Result 16 states and 16 transitions. [2022-11-23 02:46:13,462 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-23 02:46:13,462 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 1.75) internal successors, (14), 8 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2022-11-23 02:46:13,462 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 02:46:13,463 INFO L225 Difference]: With dead ends: 16 [2022-11-23 02:46:13,463 INFO L226 Difference]: Without dead ends: 14 [2022-11-23 02:46:13,463 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2022-11-23 02:46:13,465 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 13 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 21 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-23 02:46:13,465 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 21 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-23 02:46:13,466 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2022-11-23 02:46:13,469 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 12. [2022-11-23 02:46:13,469 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12 states, 11 states have (on average 1.0909090909090908) internal successors, (12), 11 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 02:46:13,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 12 transitions. [2022-11-23 02:46:13,470 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 12 transitions. Word has length 8 [2022-11-23 02:46:13,470 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 02:46:13,470 INFO L495 AbstractCegarLoop]: Abstraction has 12 states and 12 transitions. [2022-11-23 02:46:13,471 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 1.75) internal successors, (14), 8 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 02:46:13,471 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 12 transitions. [2022-11-23 02:46:13,471 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-23 02:46:13,471 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 02:46:13,471 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1] [2022-11-23 02:46:13,494 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_707797cf-39c2-43f9-8b5a-1a9cec2684ce/bin/uautomizer-QkZJyEgLgS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2022-11-23 02:46:13,685 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_707797cf-39c2-43f9-8b5a-1a9cec2684ce/bin/uautomizer-QkZJyEgLgS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 02:46:13,686 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 02:46:13,686 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 02:46:13,687 INFO L85 PathProgramCache]: Analyzing trace with hash 1020920393, now seen corresponding path program 2 times [2022-11-23 02:46:13,687 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-23 02:46:13,687 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2142468620] [2022-11-23 02:46:13,688 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-23 02:46:13,688 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 02:46:13,688 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_707797cf-39c2-43f9-8b5a-1a9cec2684ce/bin/uautomizer-QkZJyEgLgS/mathsat [2022-11-23 02:46:13,690 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_707797cf-39c2-43f9-8b5a-1a9cec2684ce/bin/uautomizer-QkZJyEgLgS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-23 02:46:13,691 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_707797cf-39c2-43f9-8b5a-1a9cec2684ce/bin/uautomizer-QkZJyEgLgS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2022-11-23 02:46:13,885 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-23 02:46:13,885 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-23 02:46:13,894 INFO L263 TraceCheckSpWp]: Trace formula consists of 311 conjuncts, 48 conjunts are in the unsatisfiable core [2022-11-23 02:46:13,898 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 02:46:14,139 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 02:46:14,140 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 02:46:15,666 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 02:46:15,666 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-23 02:46:15,667 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2142468620] [2022-11-23 02:46:15,667 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2142468620] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 02:46:15,667 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-23 02:46:15,667 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2022-11-23 02:46:15,668 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1527750642] [2022-11-23 02:46:15,668 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-23 02:46:15,668 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-23 02:46:15,669 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-23 02:46:15,669 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-23 02:46:15,669 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-11-23 02:46:15,670 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) [2022-11-23 02:46:15,803 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 02:46:15,803 INFO L93 Difference]: Finished difference Result 19 states and 19 transitions. [2022-11-23 02:46:15,803 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-23 02:46:15,803 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 [2022-11-23 02:46:15,804 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 02:46:15,804 INFO L225 Difference]: With dead ends: 19 [2022-11-23 02:46:15,804 INFO L226 Difference]: Without dead ends: 17 [2022-11-23 02:46:15,805 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=57, Invalid=99, Unknown=0, NotChecked=0, Total=156 [2022-11-23 02:46:15,806 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 25 mSDsluCounter, 11 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 15 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-23 02:46:15,806 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 15 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-23 02:46:15,807 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2022-11-23 02:46:15,810 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 15. [2022-11-23 02:46:15,811 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) [2022-11-23 02:46:15,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 15 transitions. [2022-11-23 02:46:15,811 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 15 transitions. Word has length 11 [2022-11-23 02:46:15,811 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 02:46:15,812 INFO L495 AbstractCegarLoop]: Abstraction has 15 states and 15 transitions. [2022-11-23 02:46:15,812 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) [2022-11-23 02:46:15,812 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 15 transitions. [2022-11-23 02:46:15,812 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-11-23 02:46:15,813 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 02:46:15,813 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1] [2022-11-23 02:46:15,831 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_707797cf-39c2-43f9-8b5a-1a9cec2684ce/bin/uautomizer-QkZJyEgLgS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2022-11-23 02:46:16,031 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_707797cf-39c2-43f9-8b5a-1a9cec2684ce/bin/uautomizer-QkZJyEgLgS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 02:46:16,031 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 02:46:16,032 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 02:46:16,032 INFO L85 PathProgramCache]: Analyzing trace with hash 1580781475, now seen corresponding path program 3 times [2022-11-23 02:46:16,033 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-23 02:46:16,033 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1261647540] [2022-11-23 02:46:16,033 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-23 02:46:16,033 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 02:46:16,033 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_707797cf-39c2-43f9-8b5a-1a9cec2684ce/bin/uautomizer-QkZJyEgLgS/mathsat [2022-11-23 02:46:16,040 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_707797cf-39c2-43f9-8b5a-1a9cec2684ce/bin/uautomizer-QkZJyEgLgS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-23 02:46:16,044 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_707797cf-39c2-43f9-8b5a-1a9cec2684ce/bin/uautomizer-QkZJyEgLgS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2022-11-23 02:46:16,233 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2022-11-23 02:46:16,234 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-23 02:46:16,241 INFO L263 TraceCheckSpWp]: Trace formula consists of 311 conjuncts, 46 conjunts are in the unsatisfiable core [2022-11-23 02:46:16,245 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 02:46:16,721 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-23 02:46:16,721 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 02:46:18,494 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-23 02:46:18,495 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-23 02:46:18,495 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1261647540] [2022-11-23 02:46:18,495 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1261647540] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 02:46:18,495 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-23 02:46:18,495 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2022-11-23 02:46:18,496 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1207775724] [2022-11-23 02:46:18,496 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-23 02:46:18,496 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-23 02:46:18,497 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-23 02:46:18,497 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-23 02:46:18,497 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2022-11-23 02:46:18,498 INFO L87 Difference]: Start difference. First operand 15 states and 15 transitions. Second operand has 10 states, 10 states have (on average 2.2) internal successors, (22), 10 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 02:46:18,617 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 02:46:18,617 INFO L93 Difference]: Finished difference Result 15 states and 15 transitions. [2022-11-23 02:46:18,618 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-23 02:46:18,618 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 2.2) internal successors, (22), 10 states have internal predecessors, (22), 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 14 [2022-11-23 02:46:18,618 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 02:46:18,618 INFO L225 Difference]: With dead ends: 15 [2022-11-23 02:46:18,619 INFO L226 Difference]: Without dead ends: 0 [2022-11-23 02:46:18,619 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2022-11-23 02:46:18,620 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 6 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 8 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-23 02:46:18,620 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 8 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-23 02:46:18,621 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-23 02:46:18,621 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-23 02:46:18,621 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 02:46:18,622 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-23 02:46:18,622 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 14 [2022-11-23 02:46:18,622 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 02:46:18,622 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-23 02:46:18,622 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 2.2) internal successors, (22), 10 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 02:46:18,622 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-23 02:46:18,622 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-23 02:46:18,625 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-23 02:46:18,638 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_707797cf-39c2-43f9-8b5a-1a9cec2684ce/bin/uautomizer-QkZJyEgLgS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2022-11-23 02:46:18,837 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_707797cf-39c2-43f9-8b5a-1a9cec2684ce/bin/uautomizer-QkZJyEgLgS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 02:46:18,839 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-11-23 02:46:18,959 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-11-23 02:46:18,960 INFO L895 garLoopResultBuilder]: At program point L221(lines 22 222) the Hoare annotation is: false [2022-11-23 02:46:18,960 INFO L895 garLoopResultBuilder]: At program point L91-2(lines 91 220) the Hoare annotation is: (let ((.cse0 (= (_ bv1 8) |ULTIMATE.start_main_~mask_SORT_1~0#1|)) (.cse1 (= |ULTIMATE.start_main_~var_7~0#1| (_ bv0 8))) (.cse2 (= |ULTIMATE.start_main_~var_12~0#1| (_ bv0 32))) (.cse3 (= (_ bv0 8) |ULTIMATE.start_main_~state_14~0#1|))) (or (and .cse0 .cse1 (= |ULTIMATE.start_main_~var_7~0#1| |ULTIMATE.start_main_~state_40~0#1|) (= |ULTIMATE.start_main_~state_8~0#1| |ULTIMATE.start_main_~var_7~0#1|) (= |ULTIMATE.start_main_~var_7~0#1| |ULTIMATE.start_main_~state_61~0#1|) .cse2 .cse3) (and .cse0 (= |ULTIMATE.start___VERIFIER_assert_~cond#1| (_ bv1 32)) (exists ((|ULTIMATE.start_main_~var_91_arg_2~0#1| (_ BitVec 8))) (= ((_ extract 7 0) (bvand ((_ zero_extend 24) |ULTIMATE.start_main_~mask_SORT_1~0#1|) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) |ULTIMATE.start_main_~var_91_arg_2~0#1|))))) |ULTIMATE.start_main_~state_40~0#1|)) .cse1 .cse2 .cse3))) [2022-11-23 02:46:18,961 INFO L899 garLoopResultBuilder]: For program point L91-3(lines 91 220) no Hoare annotation was computed. [2022-11-23 02:46:18,961 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2022-11-23 02:46:18,961 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-11-23 02:46:18,961 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2022-11-23 02:46:18,961 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 20) no Hoare annotation was computed. [2022-11-23 02:46:18,962 INFO L899 garLoopResultBuilder]: For program point L20(line 20) no Hoare annotation was computed. [2022-11-23 02:46:18,962 INFO L899 garLoopResultBuilder]: For program point L20-1(line 20) no Hoare annotation was computed. [2022-11-23 02:46:18,962 INFO L899 garLoopResultBuilder]: For program point L20-3(line 20) no Hoare annotation was computed. [2022-11-23 02:46:18,965 INFO L444 BasicCegarLoop]: Path program histogram: [3, 1] [2022-11-23 02:46:18,967 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-23 02:46:18,975 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~var_91_arg_2~0#1,QUANTIFIED] [2022-11-23 02:46:18,981 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~var_91_arg_2~0#1,QUANTIFIED] [2022-11-23 02:46:18,982 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 02:46:18 BoogieIcfgContainer [2022-11-23 02:46:18,982 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-23 02:46:18,983 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-23 02:46:18,983 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-23 02:46:18,983 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-23 02:46:18,984 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:46:11" (3/4) ... [2022-11-23 02:46:18,987 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-23 02:46:18,998 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2022-11-23 02:46:18,999 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2022-11-23 02:46:18,999 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-23 02:46:19,026 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((1bv8 == mask_SORT_1 && var_7 == 0bv8) && var_7 == state_40) && state_8 == var_7) && var_7 == state_61) && var_12 == 0bv32) && 0bv8 == state_14) || (((((1bv8 == mask_SORT_1 && cond == 1bv32) && (\exists ULTIMATE.start_main_~var_91_arg_2~0#1 : bv8 :: ~bvand32(~zero_extendFrom16To32(mask_SORT_1), ~zero_extendFrom16To32(~zero_extendFrom16To32(ULTIMATE.start_main_~var_91_arg_2~0#1)[7:0]))[7:0] == state_40)) && var_7 == 0bv8) && var_12 == 0bv32) && 0bv8 == state_14) [2022-11-23 02:46:19,050 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_707797cf-39c2-43f9-8b5a-1a9cec2684ce/bin/uautomizer-QkZJyEgLgS/witness.graphml [2022-11-23 02:46:19,050 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-23 02:46:19,051 INFO L158 Benchmark]: Toolchain (without parser) took 8828.65ms. Allocated memory was 75.5MB in the beginning and 144.7MB in the end (delta: 69.2MB). Free memory was 52.6MB in the beginning and 104.8MB in the end (delta: -52.2MB). Peak memory consumption was 17.2MB. Max. memory is 16.1GB. [2022-11-23 02:46:19,051 INFO L158 Benchmark]: CDTParser took 0.26ms. Allocated memory is still 75.5MB. Free memory is still 52.5MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-23 02:46:19,051 INFO L158 Benchmark]: CACSL2BoogieTranslator took 319.92ms. Allocated memory is still 75.5MB. Free memory was 52.5MB in the beginning and 38.5MB in the end (delta: 14.0MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-11-23 02:46:19,052 INFO L158 Benchmark]: Boogie Procedure Inliner took 74.86ms. Allocated memory is still 75.5MB. Free memory was 38.5MB in the beginning and 36.1MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-23 02:46:19,052 INFO L158 Benchmark]: Boogie Preprocessor took 99.43ms. Allocated memory was 75.5MB in the beginning and 98.6MB in the end (delta: 23.1MB). Free memory was 36.1MB in the beginning and 76.7MB in the end (delta: -40.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-23 02:46:19,053 INFO L158 Benchmark]: RCFGBuilder took 576.72ms. Allocated memory is still 98.6MB. Free memory was 76.7MB in the beginning and 58.5MB in the end (delta: 18.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2022-11-23 02:46:19,053 INFO L158 Benchmark]: TraceAbstraction took 7683.66ms. Allocated memory was 98.6MB in the beginning and 144.7MB in the end (delta: 46.1MB). Free memory was 57.8MB in the beginning and 109.0MB in the end (delta: -51.1MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-23 02:46:19,053 INFO L158 Benchmark]: Witness Printer took 67.39ms. Allocated memory is still 144.7MB. Free memory was 109.0MB in the beginning and 104.8MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-23 02:46:19,055 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26ms. Allocated memory is still 75.5MB. Free memory is still 52.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 319.92ms. Allocated memory is still 75.5MB. Free memory was 52.5MB in the beginning and 38.5MB in the end (delta: 14.0MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 74.86ms. Allocated memory is still 75.5MB. Free memory was 38.5MB in the beginning and 36.1MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 99.43ms. Allocated memory was 75.5MB in the beginning and 98.6MB in the end (delta: 23.1MB). Free memory was 36.1MB in the beginning and 76.7MB in the end (delta: -40.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 576.72ms. Allocated memory is still 98.6MB. Free memory was 76.7MB in the beginning and 58.5MB in the end (delta: 18.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 7683.66ms. Allocated memory was 98.6MB in the beginning and 144.7MB in the end (delta: 46.1MB). Free memory was 57.8MB in the beginning and 109.0MB in the end (delta: -51.1MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 67.39ms. Allocated memory is still 144.7MB. Free memory was 109.0MB in the beginning and 104.8MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~var_91_arg_2~0#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~var_91_arg_2~0#1,QUANTIFIED] * 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 - PositiveResult [Line: 20]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 11 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 7.6s, OverallIterations: 4, TraceHistogramMax: 4, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 48 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 48 mSDsluCounter, 57 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 42 mSDsCounter, 8 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 47 IncrementalHoareTripleChecker+Invalid, 55 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 8 mSolverCounterUnsat, 15 mSDtfsCounter, 47 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 73 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 2.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=15occurred in iteration=3, InterpolantAutomatonStates: 24, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 6 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 2 LocationsWithAnnotation, 2 PreInvPairs, 6 NumberOfFragments, 51 HoareAnnotationTreeSize, 2 FomulaSimplifications, 34 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 2 FomulaSimplificationsInter, 74 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 5.3s InterpolantComputationTime, 38 NumberOfCodeBlocks, 35 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 64 ConstructedInterpolants, 24 QuantifiedInterpolants, 2328 SizeOfPredicates, 148 NumberOfNonLiveVariables, 893 ConjunctsInSsa, 145 ConjunctsInUnsatCore, 7 InterpolantComputations, 1 PerfectInterpolantSequences, 12/48 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 - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 22]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 91]: Loop Invariant [2022-11-23 02:46:19,063 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~var_91_arg_2~0#1,QUANTIFIED] [2022-11-23 02:46:19,063 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~var_91_arg_2~0#1,QUANTIFIED] Derived loop invariant: ((((((1bv8 == mask_SORT_1 && var_7 == 0bv8) && var_7 == state_40) && state_8 == var_7) && var_7 == state_61) && var_12 == 0bv32) && 0bv8 == state_14) || (((((1bv8 == mask_SORT_1 && cond == 1bv32) && (\exists ULTIMATE.start_main_~var_91_arg_2~0#1 : bv8 :: ~bvand32(~zero_extendFrom16To32(mask_SORT_1), ~zero_extendFrom16To32(~zero_extendFrom16To32(ULTIMATE.start_main_~var_91_arg_2~0#1)[7:0]))[7:0] == state_40)) && var_7 == 0bv8) && var_12 == 0bv32) && 0bv8 == state_14) RESULT: Ultimate proved your program to be correct! [2022-11-23 02:46:19,075 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_707797cf-39c2-43f9-8b5a-1a9cec2684ce/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE