./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/loops/lu.cmp.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version e04fb08f Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672fe820-bbc2-4bae-a6df-c758c90a6b96/bin/uautomizer-tPACEb0tL8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672fe820-bbc2-4bae-a6df-c758c90a6b96/bin/uautomizer-tPACEb0tL8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672fe820-bbc2-4bae-a6df-c758c90a6b96/bin/uautomizer-tPACEb0tL8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672fe820-bbc2-4bae-a6df-c758c90a6b96/bin/uautomizer-tPACEb0tL8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/loops/lu.cmp.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672fe820-bbc2-4bae-a6df-c758c90a6b96/bin/uautomizer-tPACEb0tL8/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672fe820-bbc2-4bae-a6df-c758c90a6b96/bin/uautomizer-tPACEb0tL8 --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 32bit --witnessprinter.graph.data.programhash 9f7b9e2e2452a973cdb1a73a9c368f26d19387c763b2be4ad10c01e7a31f6598 --- 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-e04fb08 [2022-11-16 11:48:54,821 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-16 11:48:54,823 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-16 11:48:54,847 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-16 11:48:54,848 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-16 11:48:54,849 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-16 11:48:54,851 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-16 11:48:54,853 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-16 11:48:54,855 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-16 11:48:54,856 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-16 11:48:54,858 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-16 11:48:54,859 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-16 11:48:54,860 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-16 11:48:54,861 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-16 11:48:54,863 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-16 11:48:54,865 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-16 11:48:54,866 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-16 11:48:54,867 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-16 11:48:54,869 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-16 11:48:54,872 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-16 11:48:54,874 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-16 11:48:54,876 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-16 11:48:54,877 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-16 11:48:54,879 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-16 11:48:54,884 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-16 11:48:54,884 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-16 11:48:54,885 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-16 11:48:54,886 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-16 11:48:54,887 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-16 11:48:54,888 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-16 11:48:54,889 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-16 11:48:54,890 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-16 11:48:54,891 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-16 11:48:54,892 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-16 11:48:54,900 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-16 11:48:54,900 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-16 11:48:54,901 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-16 11:48:54,902 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-16 11:48:54,902 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-16 11:48:54,904 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-16 11:48:54,905 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-16 11:48:54,906 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672fe820-bbc2-4bae-a6df-c758c90a6b96/bin/uautomizer-tPACEb0tL8/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-11-16 11:48:54,940 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-16 11:48:54,940 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-16 11:48:54,941 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-16 11:48:54,941 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-16 11:48:54,942 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-16 11:48:54,942 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-16 11:48:54,943 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-16 11:48:54,943 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-16 11:48:54,943 INFO L138 SettingsManager]: * Use SBE=true [2022-11-16 11:48:54,944 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-16 11:48:54,944 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-16 11:48:54,944 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-16 11:48:54,944 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-16 11:48:54,945 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-16 11:48:54,945 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-16 11:48:54,945 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-16 11:48:54,945 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-16 11:48:54,946 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-16 11:48:54,946 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-16 11:48:54,946 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-16 11:48:54,946 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-16 11:48:54,947 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-16 11:48:54,947 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-16 11:48:54,947 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-16 11:48:54,947 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 11:48:54,948 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-16 11:48:54,948 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-16 11:48:54,948 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-16 11:48:54,949 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-16 11:48:54,949 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-16 11:48:54,949 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-16 11:48:54,949 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-16 11:48:54,950 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-16 11:48:54,950 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672fe820-bbc2-4bae-a6df-c758c90a6b96/bin/uautomizer-tPACEb0tL8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672fe820-bbc2-4bae-a6df-c758c90a6b96/bin/uautomizer-tPACEb0tL8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9f7b9e2e2452a973cdb1a73a9c368f26d19387c763b2be4ad10c01e7a31f6598 [2022-11-16 11:48:55,230 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-16 11:48:55,266 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-16 11:48:55,269 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-16 11:48:55,271 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-16 11:48:55,273 INFO L275 PluginConnector]: CDTParser initialized [2022-11-16 11:48:55,274 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672fe820-bbc2-4bae-a6df-c758c90a6b96/bin/uautomizer-tPACEb0tL8/../../sv-benchmarks/c/loops/lu.cmp.c [2022-11-16 11:48:55,371 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672fe820-bbc2-4bae-a6df-c758c90a6b96/bin/uautomizer-tPACEb0tL8/data/5f5c08e60/2df19c0865db45c98423553f570cc418/FLAG60f3b0ed8 [2022-11-16 11:48:55,888 INFO L306 CDTParser]: Found 1 translation units. [2022-11-16 11:48:55,889 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672fe820-bbc2-4bae-a6df-c758c90a6b96/sv-benchmarks/c/loops/lu.cmp.c [2022-11-16 11:48:55,900 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672fe820-bbc2-4bae-a6df-c758c90a6b96/bin/uautomizer-tPACEb0tL8/data/5f5c08e60/2df19c0865db45c98423553f570cc418/FLAG60f3b0ed8 [2022-11-16 11:48:56,227 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672fe820-bbc2-4bae-a6df-c758c90a6b96/bin/uautomizer-tPACEb0tL8/data/5f5c08e60/2df19c0865db45c98423553f570cc418 [2022-11-16 11:48:56,230 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-16 11:48:56,232 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-16 11:48:56,238 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-16 11:48:56,238 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-16 11:48:56,243 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-16 11:48:56,244 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 11:48:56" (1/1) ... [2022-11-16 11:48:56,246 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6e6ae850 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:48:56, skipping insertion in model container [2022-11-16 11:48:56,247 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 11:48:56" (1/1) ... [2022-11-16 11:48:56,256 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-16 11:48:56,299 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-16 11:48:56,524 WARN L229 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_672fe820-bbc2-4bae-a6df-c758c90a6b96/sv-benchmarks/c/loops/lu.cmp.c[318,331] [2022-11-16 11:48:56,567 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 11:48:56,578 INFO L203 MainTranslator]: Completed pre-run [2022-11-16 11:48:56,593 WARN L229 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_672fe820-bbc2-4bae-a6df-c758c90a6b96/sv-benchmarks/c/loops/lu.cmp.c[318,331] [2022-11-16 11:48:56,618 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 11:48:56,635 INFO L208 MainTranslator]: Completed translation [2022-11-16 11:48:56,636 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:48:56 WrapperNode [2022-11-16 11:48:56,636 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-16 11:48:56,637 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-16 11:48:56,637 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-16 11:48:56,637 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-16 11:48:56,647 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:48:56" (1/1) ... [2022-11-16 11:48:56,659 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:48:56" (1/1) ... [2022-11-16 11:48:56,695 INFO L138 Inliner]: procedures = 17, calls = 47, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 224 [2022-11-16 11:48:56,696 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-16 11:48:56,697 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-16 11:48:56,697 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-16 11:48:56,698 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-16 11:48:56,709 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:48:56" (1/1) ... [2022-11-16 11:48:56,709 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:48:56" (1/1) ... [2022-11-16 11:48:56,714 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:48:56" (1/1) ... [2022-11-16 11:48:56,714 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:48:56" (1/1) ... [2022-11-16 11:48:56,742 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:48:56" (1/1) ... [2022-11-16 11:48:56,763 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:48:56" (1/1) ... [2022-11-16 11:48:56,765 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:48:56" (1/1) ... [2022-11-16 11:48:56,766 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:48:56" (1/1) ... [2022-11-16 11:48:56,770 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-16 11:48:56,782 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-16 11:48:56,782 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-16 11:48:56,782 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-16 11:48:56,784 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:48:56" (1/1) ... [2022-11-16 11:48:56,793 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 11:48:56,807 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672fe820-bbc2-4bae-a6df-c758c90a6b96/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:48:56,828 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672fe820-bbc2-4bae-a6df-c758c90a6b96/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-16 11:48:56,844 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672fe820-bbc2-4bae-a6df-c758c90a6b96/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-16 11:48:56,888 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-16 11:48:56,888 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-16 11:48:56,888 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-16 11:48:56,888 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2022-11-16 11:48:56,889 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2022-11-16 11:48:56,889 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-16 11:48:56,889 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-16 11:48:56,890 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-16 11:48:57,041 INFO L235 CfgBuilder]: Building ICFG [2022-11-16 11:48:57,043 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-16 11:48:57,391 INFO L276 CfgBuilder]: Performing block encoding [2022-11-16 11:48:57,398 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-16 11:48:57,399 INFO L300 CfgBuilder]: Removed 11 assume(true) statements. [2022-11-16 11:48:57,401 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 11:48:57 BoogieIcfgContainer [2022-11-16 11:48:57,402 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-16 11:48:57,404 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-16 11:48:57,404 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-16 11:48:57,409 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-16 11:48:57,409 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 11:48:56" (1/3) ... [2022-11-16 11:48:57,410 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4d563aea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 11:48:57, skipping insertion in model container [2022-11-16 11:48:57,410 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:48:56" (2/3) ... [2022-11-16 11:48:57,411 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4d563aea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 11:48:57, skipping insertion in model container [2022-11-16 11:48:57,411 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 11:48:57" (3/3) ... [2022-11-16 11:48:57,413 INFO L112 eAbstractionObserver]: Analyzing ICFG lu.cmp.c [2022-11-16 11:48:57,450 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-16 11:48:57,450 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-16 11:48:57,557 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-16 11:48:57,578 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@5a2917a7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-16 11:48:57,579 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-16 11:48:57,585 INFO L276 IsEmpty]: Start isEmpty. Operand has 50 states, 48 states have (on average 1.6041666666666667) internal successors, (77), 49 states have internal predecessors, (77), 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) [2022-11-16 11:48:57,594 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-11-16 11:48:57,594 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:48:57,595 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:48:57,596 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 11:48:57,602 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:48:57,602 INFO L85 PathProgramCache]: Analyzing trace with hash 1809811384, now seen corresponding path program 1 times [2022-11-16 11:48:57,613 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:48:57,614 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [951081421] [2022-11-16 11:48:57,614 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:48:57,614 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:48:57,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:48:58,065 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:48:58,065 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:48:58,066 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [951081421] [2022-11-16 11:48:58,067 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [951081421] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:48:58,067 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:48:58,067 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-16 11:48:58,069 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [632985882] [2022-11-16 11:48:58,070 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:48:58,075 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-16 11:48:58,076 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:48:58,128 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-16 11:48:58,129 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-16 11:48:58,132 INFO L87 Difference]: Start difference. First operand has 50 states, 48 states have (on average 1.6041666666666667) internal successors, (77), 49 states have internal predecessors, (77), 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 1.75) internal successors, (7), 4 states have internal predecessors, (7), 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) [2022-11-16 11:48:58,228 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:48:58,234 INFO L93 Difference]: Finished difference Result 102 states and 159 transitions. [2022-11-16 11:48:58,236 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-16 11:48:58,239 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 1.75) internal successors, (7), 4 states have internal predecessors, (7), 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 7 [2022-11-16 11:48:58,240 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:48:58,263 INFO L225 Difference]: With dead ends: 102 [2022-11-16 11:48:58,267 INFO L226 Difference]: Without dead ends: 17 [2022-11-16 11:48:58,271 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-16 11:48:58,276 INFO L413 NwaCegarLoop]: 57 mSDtfsCounter, 68 mSDsluCounter, 57 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 68 SdHoareTripleChecker+Valid, 114 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-16 11:48:58,281 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [68 Valid, 114 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-16 11:48:58,322 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2022-11-16 11:48:58,353 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 14. [2022-11-16 11:48:58,356 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14 states, 13 states have (on average 1.2307692307692308) internal successors, (16), 13 states have internal predecessors, (16), 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) [2022-11-16 11:48:58,357 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 16 transitions. [2022-11-16 11:48:58,374 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 16 transitions. Word has length 7 [2022-11-16 11:48:58,375 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:48:58,376 INFO L495 AbstractCegarLoop]: Abstraction has 14 states and 16 transitions. [2022-11-16 11:48:58,376 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1.75) internal successors, (7), 4 states have internal predecessors, (7), 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) [2022-11-16 11:48:58,377 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 16 transitions. [2022-11-16 11:48:58,377 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-16 11:48:58,377 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:48:58,378 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:48:58,378 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-16 11:48:58,379 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 11:48:58,382 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:48:58,382 INFO L85 PathProgramCache]: Analyzing trace with hash -1948892579, now seen corresponding path program 1 times [2022-11-16 11:48:58,382 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:48:58,383 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1569556667] [2022-11-16 11:48:58,383 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:48:58,384 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:48:58,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:48:58,680 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-16 11:48:58,681 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:48:58,681 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1569556667] [2022-11-16 11:48:58,681 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1569556667] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:48:58,682 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:48:58,682 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-16 11:48:58,682 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [149567097] [2022-11-16 11:48:58,683 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:48:58,684 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-16 11:48:58,685 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:48:58,685 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-16 11:48:58,686 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-16 11:48:58,686 INFO L87 Difference]: Start difference. First operand 14 states and 16 transitions. Second operand has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 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) [2022-11-16 11:48:58,736 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:48:58,736 INFO L93 Difference]: Finished difference Result 26 states and 30 transitions. [2022-11-16 11:48:58,737 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-16 11:48:58,737 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 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 [2022-11-16 11:48:58,738 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:48:58,738 INFO L225 Difference]: With dead ends: 26 [2022-11-16 11:48:58,739 INFO L226 Difference]: Without dead ends: 24 [2022-11-16 11:48:58,739 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 [2022-11-16 11:48:58,741 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 16 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 28 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-16 11:48:58,742 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 28 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-16 11:48:58,743 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2022-11-16 11:48:58,748 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 22. [2022-11-16 11:48:58,749 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22 states, 21 states have (on average 1.2380952380952381) internal successors, (26), 21 states have internal predecessors, (26), 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) [2022-11-16 11:48:58,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 26 transitions. [2022-11-16 11:48:58,750 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 26 transitions. Word has length 11 [2022-11-16 11:48:58,750 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:48:58,751 INFO L495 AbstractCegarLoop]: Abstraction has 22 states and 26 transitions. [2022-11-16 11:48:58,751 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 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) [2022-11-16 11:48:58,751 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 26 transitions. [2022-11-16 11:48:58,752 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-11-16 11:48:58,752 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:48:58,753 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:48:58,753 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-16 11:48:58,753 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 11:48:58,754 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:48:58,754 INFO L85 PathProgramCache]: Analyzing trace with hash -2121905774, now seen corresponding path program 1 times [2022-11-16 11:48:58,755 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:48:58,755 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [11984128] [2022-11-16 11:48:58,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:48:58,756 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:48:58,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:48:59,059 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-16 11:48:59,059 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:48:59,060 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [11984128] [2022-11-16 11:48:59,060 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [11984128] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 11:48:59,060 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1497606130] [2022-11-16 11:48:59,061 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:48:59,061 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 11:48:59,061 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672fe820-bbc2-4bae-a6df-c758c90a6b96/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:48:59,065 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672fe820-bbc2-4bae-a6df-c758c90a6b96/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 11:48:59,091 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672fe820-bbc2-4bae-a6df-c758c90a6b96/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-16 11:48:59,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:48:59,225 INFO L263 TraceCheckSpWp]: Trace formula consists of 139 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-16 11:48:59,231 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 11:48:59,386 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 8 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-16 11:48:59,388 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 11:48:59,460 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 8 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-16 11:48:59,462 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1497606130] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 11:48:59,463 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-16 11:48:59,463 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2022-11-16 11:48:59,463 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1389017171] [2022-11-16 11:48:59,464 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-16 11:48:59,465 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-16 11:48:59,466 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:48:59,467 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-16 11:48:59,469 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2022-11-16 11:48:59,470 INFO L87 Difference]: Start difference. First operand 22 states and 26 transitions. Second operand has 11 states, 11 states have (on average 4.181818181818182) internal successors, (46), 11 states have internal predecessors, (46), 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) [2022-11-16 11:48:59,918 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:48:59,919 INFO L93 Difference]: Finished difference Result 84 states and 111 transitions. [2022-11-16 11:48:59,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-11-16 11:48:59,920 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 4.181818181818182) internal successors, (46), 11 states have internal predecessors, (46), 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 21 [2022-11-16 11:48:59,920 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:48:59,922 INFO L225 Difference]: With dead ends: 84 [2022-11-16 11:48:59,922 INFO L226 Difference]: Without dead ends: 70 [2022-11-16 11:48:59,923 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 131 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=201, Invalid=501, Unknown=0, NotChecked=0, Total=702 [2022-11-16 11:48:59,924 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 219 mSDsluCounter, 26 mSDsCounter, 0 mSdLazyCounter, 91 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 219 SdHoareTripleChecker+Valid, 32 SdHoareTripleChecker+Invalid, 116 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 91 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-16 11:48:59,925 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [219 Valid, 32 Invalid, 116 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 91 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-16 11:48:59,926 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states. [2022-11-16 11:48:59,938 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 68. [2022-11-16 11:48:59,939 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 68 states, 67 states have (on average 1.2388059701492538) internal successors, (83), 67 states have internal predecessors, (83), 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) [2022-11-16 11:48:59,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 83 transitions. [2022-11-16 11:48:59,941 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 83 transitions. Word has length 21 [2022-11-16 11:48:59,941 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:48:59,941 INFO L495 AbstractCegarLoop]: Abstraction has 68 states and 83 transitions. [2022-11-16 11:48:59,941 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 4.181818181818182) internal successors, (46), 11 states have internal predecessors, (46), 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) [2022-11-16 11:48:59,942 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 83 transitions. [2022-11-16 11:48:59,943 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2022-11-16 11:48:59,943 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:48:59,944 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 7, 5, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1] [2022-11-16 11:48:59,956 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672fe820-bbc2-4bae-a6df-c758c90a6b96/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-16 11:49:00,154 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672fe820-bbc2-4bae-a6df-c758c90a6b96/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 11:49:00,154 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 11:49:00,155 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:49:00,155 INFO L85 PathProgramCache]: Analyzing trace with hash -139112542, now seen corresponding path program 1 times [2022-11-16 11:49:00,155 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:49:00,156 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [664358117] [2022-11-16 11:49:00,156 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:49:00,156 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:49:00,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:49:00,606 INFO L134 CoverageAnalysis]: Checked inductivity of 314 backedges. 146 proven. 4 refuted. 0 times theorem prover too weak. 164 trivial. 0 not checked. [2022-11-16 11:49:00,606 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:49:00,606 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [664358117] [2022-11-16 11:49:00,608 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [664358117] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 11:49:00,612 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2056905673] [2022-11-16 11:49:00,612 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:49:00,612 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 11:49:00,613 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672fe820-bbc2-4bae-a6df-c758c90a6b96/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:49:00,614 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672fe820-bbc2-4bae-a6df-c758c90a6b96/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 11:49:00,635 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672fe820-bbc2-4bae-a6df-c758c90a6b96/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-16 11:49:00,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:49:00,853 INFO L263 TraceCheckSpWp]: Trace formula consists of 317 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-16 11:49:00,856 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 11:49:01,035 INFO L134 CoverageAnalysis]: Checked inductivity of 314 backedges. 148 proven. 28 refuted. 0 times theorem prover too weak. 138 trivial. 0 not checked. [2022-11-16 11:49:01,036 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 11:49:01,190 INFO L134 CoverageAnalysis]: Checked inductivity of 314 backedges. 148 proven. 28 refuted. 0 times theorem prover too weak. 138 trivial. 0 not checked. [2022-11-16 11:49:01,190 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2056905673] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 11:49:01,190 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-16 11:49:01,190 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 8, 8] total 18 [2022-11-16 11:49:01,191 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [487468516] [2022-11-16 11:49:01,191 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-16 11:49:01,192 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-16 11:49:01,192 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:49:01,192 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-16 11:49:01,193 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=89, Invalid=217, Unknown=0, NotChecked=0, Total=306 [2022-11-16 11:49:01,193 INFO L87 Difference]: Start difference. First operand 68 states and 83 transitions. Second operand has 18 states, 18 states have (on average 4.055555555555555) internal successors, (73), 18 states have internal predecessors, (73), 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) [2022-11-16 11:49:01,755 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:49:01,755 INFO L93 Difference]: Finished difference Result 205 states and 253 transitions. [2022-11-16 11:49:01,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-11-16 11:49:01,766 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 4.055555555555555) internal successors, (73), 18 states have internal predecessors, (73), 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 67 [2022-11-16 11:49:01,766 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:49:01,767 INFO L225 Difference]: With dead ends: 205 [2022-11-16 11:49:01,767 INFO L226 Difference]: Without dead ends: 0 [2022-11-16 11:49:01,768 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 153 GetRequests, 123 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 187 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=327, Invalid=665, Unknown=0, NotChecked=0, Total=992 [2022-11-16 11:49:01,769 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 157 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 115 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 157 SdHoareTripleChecker+Valid, 26 SdHoareTripleChecker+Invalid, 125 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 115 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-16 11:49:01,770 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [157 Valid, 26 Invalid, 125 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 115 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-16 11:49:01,771 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-16 11:49:01,773 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-16 11:49:01,773 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) [2022-11-16 11:49:01,774 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-16 11:49:01,774 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 67 [2022-11-16 11:49:01,774 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:49:01,774 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-16 11:49:01,775 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 4.055555555555555) internal successors, (73), 18 states have internal predecessors, (73), 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) [2022-11-16 11:49:01,780 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-16 11:49:01,780 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-16 11:49:01,784 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-16 11:49:01,797 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672fe820-bbc2-4bae-a6df-c758c90a6b96/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-16 11:49:01,991 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672fe820-bbc2-4bae-a6df-c758c90a6b96/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 11:49:01,993 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-11-16 11:49:02,358 INFO L899 garLoopResultBuilder]: For program point L93-2(lines 93 104) no Hoare annotation was computed. [2022-11-16 11:49:02,360 INFO L895 garLoopResultBuilder]: At program point L93-3(lines 93 104) the Hoare annotation is: (let ((.cse0 (= 5 |ULTIMATE.start_main_~n~0#1|))) (or (and .cse0 (not (= |ULTIMATE.start___VERIFIER_assert_~cond#1| 0))) (and .cse0 (= |ULTIMATE.start_main_~i~0#1| 0)))) [2022-11-16 11:49:02,361 INFO L899 garLoopResultBuilder]: For program point L93-4(lines 93 104) no Hoare annotation was computed. [2022-11-16 11:49:02,361 INFO L899 garLoopResultBuilder]: For program point L118-2(lines 118 136) no Hoare annotation was computed. [2022-11-16 11:49:02,361 INFO L895 garLoopResultBuilder]: At program point L118-3(lines 118 136) the Hoare annotation is: (= 5 |ULTIMATE.start_main_~n~0#1|) [2022-11-16 11:49:02,362 INFO L899 garLoopResultBuilder]: For program point L118-4(lines 118 136) no Hoare annotation was computed. [2022-11-16 11:49:02,363 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-11-16 11:49:02,366 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2022-11-16 11:49:02,367 INFO L895 garLoopResultBuilder]: At program point L153(lines 111 155) the Hoare annotation is: (= 5 |ULTIMATE.start_main_~n~0#1|) [2022-11-16 11:49:02,368 INFO L899 garLoopResultBuilder]: For program point L120(line 120) no Hoare annotation was computed. [2022-11-16 11:49:02,368 INFO L899 garLoopResultBuilder]: For program point L129-2(lines 129 135) no Hoare annotation was computed. [2022-11-16 11:49:02,368 INFO L899 garLoopResultBuilder]: For program point L96-2(lines 96 101) no Hoare annotation was computed. [2022-11-16 11:49:02,369 INFO L895 garLoopResultBuilder]: At program point L129-3(lines 129 135) the Hoare annotation is: (= 5 |ULTIMATE.start_main_~n~0#1|) [2022-11-16 11:49:02,370 INFO L895 garLoopResultBuilder]: At program point L96-3(lines 96 101) the Hoare annotation is: (let ((.cse0 (= 5 |ULTIMATE.start_main_~n~0#1|))) (or (and .cse0 (not (= |ULTIMATE.start___VERIFIER_assert_~cond#1| 0)) (<= |ULTIMATE.start_main_~i~0#1| |ULTIMATE.start_main_~n~0#1|)) (and .cse0 (= |ULTIMATE.start_main_~i~0#1| 0)))) [2022-11-16 11:49:02,370 INFO L899 garLoopResultBuilder]: For program point L96-4(lines 96 101) no Hoare annotation was computed. [2022-11-16 11:49:02,371 INFO L899 garLoopResultBuilder]: For program point L121-2(lines 121 128) no Hoare annotation was computed. [2022-11-16 11:49:02,378 INFO L895 garLoopResultBuilder]: At program point L121-3(lines 121 128) the Hoare annotation is: (= 5 |ULTIMATE.start_main_~n~0#1|) [2022-11-16 11:49:02,379 INFO L899 garLoopResultBuilder]: For program point L121-4(lines 121 128) no Hoare annotation was computed. [2022-11-16 11:49:02,379 INFO L899 garLoopResultBuilder]: For program point L80(lines 80 81) no Hoare annotation was computed. [2022-11-16 11:49:02,379 INFO L899 garLoopResultBuilder]: For program point L146-2(lines 146 152) no Hoare annotation was computed. [2022-11-16 11:49:02,380 INFO L895 garLoopResultBuilder]: At program point L146-3(lines 146 152) the Hoare annotation is: (= 5 |ULTIMATE.start_main_~n~0#1|) [2022-11-16 11:49:02,380 INFO L899 garLoopResultBuilder]: For program point L80-2(lines 80 81) no Hoare annotation was computed. [2022-11-16 11:49:02,380 INFO L899 garLoopResultBuilder]: For program point L146-4(lines 146 152) no Hoare annotation was computed. [2022-11-16 11:49:02,380 INFO L899 garLoopResultBuilder]: For program point L138-2(lines 138 144) no Hoare annotation was computed. [2022-11-16 11:49:02,381 INFO L895 garLoopResultBuilder]: At program point L138-3(lines 138 144) the Hoare annotation is: (= 5 |ULTIMATE.start_main_~n~0#1|) [2022-11-16 11:49:02,381 INFO L899 garLoopResultBuilder]: For program point L6(lines 6 8) no Hoare annotation was computed. [2022-11-16 11:49:02,381 INFO L899 garLoopResultBuilder]: For program point L138-4(lines 138 144) no Hoare annotation was computed. [2022-11-16 11:49:02,382 INFO L895 garLoopResultBuilder]: At program point L6-2(lines 5 10) the Hoare annotation is: (and (= 5 |ULTIMATE.start_main_~n~0#1|) (not (= |ULTIMATE.start___VERIFIER_assert_~cond#1| 0)) (<= |ULTIMATE.start_main_~i~0#1| |ULTIMATE.start_main_~n~0#1|)) [2022-11-16 11:49:02,382 INFO L899 garLoopResultBuilder]: For program point L7(line 7) no Hoare annotation was computed. [2022-11-16 11:49:02,382 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2022-11-16 11:49:02,383 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 7) no Hoare annotation was computed. [2022-11-16 11:49:02,383 INFO L895 garLoopResultBuilder]: At program point L82(lines 76 83) the Hoare annotation is: (= 5 |ULTIMATE.start_main_~n~0#1|) [2022-11-16 11:49:02,383 INFO L899 garLoopResultBuilder]: For program point L99(line 99) no Hoare annotation was computed. [2022-11-16 11:49:02,383 INFO L899 garLoopResultBuilder]: For program point L132-2(lines 132 133) no Hoare annotation was computed. [2022-11-16 11:49:02,385 INFO L899 garLoopResultBuilder]: For program point L99-2(line 99) no Hoare annotation was computed. [2022-11-16 11:49:02,385 INFO L895 garLoopResultBuilder]: At program point L132-3(lines 132 133) the Hoare annotation is: (= 5 |ULTIMATE.start_main_~n~0#1|) [2022-11-16 11:49:02,385 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-11-16 11:49:02,386 INFO L899 garLoopResultBuilder]: For program point L132-4(lines 132 133) no Hoare annotation was computed. [2022-11-16 11:49:02,386 INFO L899 garLoopResultBuilder]: For program point L124(lines 124 126) no Hoare annotation was computed. [2022-11-16 11:49:02,386 INFO L899 garLoopResultBuilder]: For program point L124-1(lines 124 126) no Hoare annotation was computed. [2022-11-16 11:49:02,386 INFO L899 garLoopResultBuilder]: For program point L149-2(lines 149 150) no Hoare annotation was computed. [2022-11-16 11:49:02,387 INFO L895 garLoopResultBuilder]: At program point L149-3(lines 149 150) the Hoare annotation is: (= 5 |ULTIMATE.start_main_~n~0#1|) [2022-11-16 11:49:02,388 INFO L899 garLoopResultBuilder]: For program point L149-4(lines 149 150) no Hoare annotation was computed. [2022-11-16 11:49:02,388 INFO L895 garLoopResultBuilder]: At program point L108(lines 85 109) the Hoare annotation is: (= 5 |ULTIMATE.start_main_~n~0#1|) [2022-11-16 11:49:02,388 INFO L899 garLoopResultBuilder]: For program point L141-2(lines 141 142) no Hoare annotation was computed. [2022-11-16 11:49:02,389 INFO L895 garLoopResultBuilder]: At program point L141-3(lines 141 142) the Hoare annotation is: (= 5 |ULTIMATE.start_main_~n~0#1|) [2022-11-16 11:49:02,389 INFO L899 garLoopResultBuilder]: For program point L141-4(lines 141 142) no Hoare annotation was computed. [2022-11-16 11:49:02,389 INFO L899 garLoopResultBuilder]: For program point L125-2(lines 125 126) no Hoare annotation was computed. [2022-11-16 11:49:02,389 INFO L895 garLoopResultBuilder]: At program point L125-3(lines 125 126) the Hoare annotation is: (= 5 |ULTIMATE.start_main_~n~0#1|) [2022-11-16 11:49:02,390 INFO L899 garLoopResultBuilder]: For program point L117(line 117) no Hoare annotation was computed. [2022-11-16 11:49:02,394 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2022-11-16 11:49:02,398 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-16 11:49:02,424 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.11 11:49:02 BoogieIcfgContainer [2022-11-16 11:49:02,424 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-16 11:49:02,425 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-16 11:49:02,425 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-16 11:49:02,425 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-16 11:49:02,426 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 11:48:57" (3/4) ... [2022-11-16 11:49:02,430 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-16 11:49:02,455 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 18 nodes and edges [2022-11-16 11:49:02,456 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2022-11-16 11:49:02,456 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-11-16 11:49:02,457 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-16 11:49:02,513 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672fe820-bbc2-4bae-a6df-c758c90a6b96/bin/uautomizer-tPACEb0tL8/witness.graphml [2022-11-16 11:49:02,514 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-16 11:49:02,514 INFO L158 Benchmark]: Toolchain (without parser) took 6282.78ms. Allocated memory was 111.1MB in the beginning and 161.5MB in the end (delta: 50.3MB). Free memory was 63.2MB in the beginning and 113.5MB in the end (delta: -50.3MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-16 11:49:02,515 INFO L158 Benchmark]: CDTParser took 0.82ms. Allocated memory is still 111.1MB. Free memory is still 79.3MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-16 11:49:02,515 INFO L158 Benchmark]: CACSL2BoogieTranslator took 398.28ms. Allocated memory is still 111.1MB. Free memory was 63.0MB in the beginning and 83.3MB in the end (delta: -20.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2022-11-16 11:49:02,516 INFO L158 Benchmark]: Boogie Procedure Inliner took 59.49ms. Allocated memory is still 111.1MB. Free memory was 83.3MB in the beginning and 80.9MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-16 11:49:02,516 INFO L158 Benchmark]: Boogie Preprocessor took 84.01ms. Allocated memory is still 111.1MB. Free memory was 80.9MB in the beginning and 78.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-16 11:49:02,517 INFO L158 Benchmark]: RCFGBuilder took 619.83ms. Allocated memory is still 111.1MB. Free memory was 78.8MB in the beginning and 61.5MB in the end (delta: 17.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2022-11-16 11:49:02,517 INFO L158 Benchmark]: TraceAbstraction took 5020.35ms. Allocated memory was 111.1MB in the beginning and 161.5MB in the end (delta: 50.3MB). Free memory was 60.7MB in the beginning and 117.7MB in the end (delta: -57.0MB). Peak memory consumption was 50.7MB. Max. memory is 16.1GB. [2022-11-16 11:49:02,518 INFO L158 Benchmark]: Witness Printer took 88.95ms. Allocated memory is still 161.5MB. Free memory was 117.7MB in the beginning and 113.5MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-16 11:49:02,520 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.82ms. Allocated memory is still 111.1MB. Free memory is still 79.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 398.28ms. Allocated memory is still 111.1MB. Free memory was 63.0MB in the beginning and 83.3MB in the end (delta: -20.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 59.49ms. Allocated memory is still 111.1MB. Free memory was 83.3MB in the beginning and 80.9MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 84.01ms. Allocated memory is still 111.1MB. Free memory was 80.9MB in the beginning and 78.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 619.83ms. Allocated memory is still 111.1MB. Free memory was 78.8MB in the beginning and 61.5MB in the end (delta: 17.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 5020.35ms. Allocated memory was 111.1MB in the beginning and 161.5MB in the end (delta: 50.3MB). Free memory was 60.7MB in the beginning and 117.7MB in the end (delta: -57.0MB). Peak memory consumption was 50.7MB. Max. memory is 16.1GB. * Witness Printer took 88.95ms. Allocated memory is still 161.5MB. Free memory was 117.7MB in the beginning and 113.5MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 7]: 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, 50 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 4.9s, OverallIterations: 4, TraceHistogramMax: 12, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.4s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 460 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 460 mSDsluCounter, 200 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 118 mSDsCounter, 36 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 243 IncrementalHoareTripleChecker+Invalid, 279 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 36 mSolverCounterUnsat, 82 mSDtfsCounter, 243 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 223 GetRequests, 163 SyntacticMatches, 0 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 318 ImplicationChecksByTransitivity, 0.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=68occurred in iteration=3, InterpolantAutomatonStates: 45, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 4 MinimizatonAttempts, 7 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 15 LocationsWithAnnotation, 15 PreInvPairs, 67 NumberOfFragments, 82 HoareAnnotationTreeSize, 15 FomulaSimplifications, 261 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 15 FomulaSimplificationsInter, 562 FormulaSimplificationTreeSizeReductionInter, 0.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 1.7s InterpolantComputationTime, 194 NumberOfCodeBlocks, 194 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 274 ConstructedInterpolants, 0 QuantifiedInterpolants, 741 SizeOfPredicates, 4 NumberOfNonLiveVariables, 456 ConjunctsInSsa, 11 ConjunctsInUnsatCore, 8 InterpolantComputations, 2 PerfectInterpolantSequences, 907/979 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: 5]: Loop Invariant Derived loop invariant: (5 == n && !(cond == 0)) && i <= n - InvariantResult [Line: 93]: Loop Invariant Derived loop invariant: (5 == n && !(cond == 0)) || (5 == n && i == 0) - InvariantResult [Line: 129]: Loop Invariant Derived loop invariant: 5 == n - InvariantResult [Line: 118]: Loop Invariant Derived loop invariant: 5 == n - InvariantResult [Line: 85]: Loop Invariant Derived loop invariant: 5 == n - InvariantResult [Line: 125]: Loop Invariant Derived loop invariant: 5 == n - InvariantResult [Line: 76]: Loop Invariant Derived loop invariant: 5 == n - InvariantResult [Line: 149]: Loop Invariant Derived loop invariant: 5 == n - InvariantResult [Line: 111]: Loop Invariant Derived loop invariant: 5 == n - InvariantResult [Line: 146]: Loop Invariant Derived loop invariant: 5 == n - InvariantResult [Line: 96]: Loop Invariant Derived loop invariant: ((5 == n && !(cond == 0)) && i <= n) || (5 == n && i == 0) - InvariantResult [Line: 138]: Loop Invariant Derived loop invariant: 5 == n - InvariantResult [Line: 132]: Loop Invariant Derived loop invariant: 5 == n - InvariantResult [Line: 141]: Loop Invariant Derived loop invariant: 5 == n - InvariantResult [Line: 121]: Loop Invariant Derived loop invariant: 5 == n RESULT: Ultimate proved your program to be correct! [2022-11-16 11:49:02,545 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672fe820-bbc2-4bae-a6df-c758c90a6b96/bin/uautomizer-tPACEb0tL8/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