./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/loop-acceleration/simple_3-1.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_4b66a96b-c245-47ab-9d1f-08a707f6e09c/bin/uautomizer-tPACEb0tL8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b66a96b-c245-47ab-9d1f-08a707f6e09c/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_4b66a96b-c245-47ab-9d1f-08a707f6e09c/bin/uautomizer-tPACEb0tL8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b66a96b-c245-47ab-9d1f-08a707f6e09c/bin/uautomizer-tPACEb0tL8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/loop-acceleration/simple_3-1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b66a96b-c245-47ab-9d1f-08a707f6e09c/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_4b66a96b-c245-47ab-9d1f-08a707f6e09c/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 f4f78d6adc1fe4ae02b4ca0ac1f0580fb6d17885a4734f4ab50570fc9f8ba024 --- 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 11:12:16,769 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-16 11:12:16,772 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-16 11:12:16,806 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-16 11:12:16,807 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-16 11:12:16,808 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-16 11:12:16,810 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-16 11:12:16,812 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-16 11:12:16,814 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-16 11:12:16,815 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-16 11:12:16,816 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-16 11:12:16,817 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-16 11:12:16,818 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-16 11:12:16,823 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-16 11:12:16,826 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-16 11:12:16,828 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-16 11:12:16,830 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-16 11:12:16,836 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-16 11:12:16,841 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-16 11:12:16,849 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-16 11:12:16,851 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-16 11:12:16,855 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-16 11:12:16,859 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-16 11:12:16,860 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-16 11:12:16,863 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-16 11:12:16,864 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-16 11:12:16,864 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-16 11:12:16,865 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-16 11:12:16,865 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-16 11:12:16,866 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-16 11:12:16,867 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-16 11:12:16,868 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-16 11:12:16,868 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-16 11:12:16,869 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-16 11:12:16,877 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-16 11:12:16,878 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-16 11:12:16,879 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-16 11:12:16,879 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-16 11:12:16,880 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-16 11:12:16,881 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-16 11:12:16,881 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-16 11:12:16,882 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b66a96b-c245-47ab-9d1f-08a707f6e09c/bin/uautomizer-tPACEb0tL8/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-11-16 11:12:16,926 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-16 11:12:16,927 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-16 11:12:16,928 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-16 11:12:16,928 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-16 11:12:16,929 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-16 11:12:16,929 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-16 11:12:16,930 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-16 11:12:16,930 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-16 11:12:16,931 INFO L138 SettingsManager]: * Use SBE=true [2022-11-16 11:12:16,931 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-16 11:12:16,932 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-16 11:12:16,932 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-16 11:12:16,933 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-16 11:12:16,933 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-16 11:12:16,933 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-16 11:12:16,934 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-16 11:12:16,934 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-16 11:12:16,934 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-16 11:12:16,934 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-16 11:12:16,935 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-16 11:12:16,935 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-16 11:12:16,935 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-16 11:12:16,936 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-16 11:12:16,936 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-16 11:12:16,936 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 11:12:16,936 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-16 11:12:16,937 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-16 11:12:16,937 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-16 11:12:16,937 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-16 11:12:16,938 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-16 11:12:16,938 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-16 11:12:16,938 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-16 11:12:16,939 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-16 11:12:16,939 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_4b66a96b-c245-47ab-9d1f-08a707f6e09c/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b66a96b-c245-47ab-9d1f-08a707f6e09c/bin/uautomizer-tPACEb0tL8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f4f78d6adc1fe4ae02b4ca0ac1f0580fb6d17885a4734f4ab50570fc9f8ba024 [2022-11-16 11:12:17,334 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-16 11:12:17,364 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-16 11:12:17,367 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-16 11:12:17,368 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-16 11:12:17,369 INFO L275 PluginConnector]: CDTParser initialized [2022-11-16 11:12:17,370 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b66a96b-c245-47ab-9d1f-08a707f6e09c/bin/uautomizer-tPACEb0tL8/../../sv-benchmarks/c/loop-acceleration/simple_3-1.c [2022-11-16 11:12:17,449 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b66a96b-c245-47ab-9d1f-08a707f6e09c/bin/uautomizer-tPACEb0tL8/data/7689ea75d/b0d0290cfb6048d6bdf35d57fc64a0fd/FLAG74b0e1630 [2022-11-16 11:12:18,003 INFO L306 CDTParser]: Found 1 translation units. [2022-11-16 11:12:18,004 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b66a96b-c245-47ab-9d1f-08a707f6e09c/sv-benchmarks/c/loop-acceleration/simple_3-1.c [2022-11-16 11:12:18,009 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b66a96b-c245-47ab-9d1f-08a707f6e09c/bin/uautomizer-tPACEb0tL8/data/7689ea75d/b0d0290cfb6048d6bdf35d57fc64a0fd/FLAG74b0e1630 [2022-11-16 11:12:18,377 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b66a96b-c245-47ab-9d1f-08a707f6e09c/bin/uautomizer-tPACEb0tL8/data/7689ea75d/b0d0290cfb6048d6bdf35d57fc64a0fd [2022-11-16 11:12:18,380 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-16 11:12:18,382 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-16 11:12:18,384 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-16 11:12:18,384 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-16 11:12:18,388 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-16 11:12:18,389 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 11:12:18" (1/1) ... [2022-11-16 11:12:18,390 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@b14d7f4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:12:18, skipping insertion in model container [2022-11-16 11:12:18,390 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 11:12:18" (1/1) ... [2022-11-16 11:12:18,399 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-16 11:12:18,412 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-16 11:12:18,621 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_4b66a96b-c245-47ab-9d1f-08a707f6e09c/sv-benchmarks/c/loop-acceleration/simple_3-1.c[376,389] [2022-11-16 11:12:18,636 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 11:12:18,651 INFO L203 MainTranslator]: Completed pre-run [2022-11-16 11:12:18,666 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_4b66a96b-c245-47ab-9d1f-08a707f6e09c/sv-benchmarks/c/loop-acceleration/simple_3-1.c[376,389] [2022-11-16 11:12:18,679 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 11:12:18,695 INFO L208 MainTranslator]: Completed translation [2022-11-16 11:12:18,695 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:12:18 WrapperNode [2022-11-16 11:12:18,695 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-16 11:12:18,699 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-16 11:12:18,699 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-16 11:12:18,700 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-16 11:12:18,706 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:12:18" (1/1) ... [2022-11-16 11:12:18,714 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:12:18" (1/1) ... [2022-11-16 11:12:18,734 INFO L138 Inliner]: procedures = 13, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 25 [2022-11-16 11:12:18,735 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-16 11:12:18,736 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-16 11:12:18,736 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-16 11:12:18,736 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-16 11:12:18,747 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:12:18" (1/1) ... [2022-11-16 11:12:18,747 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:12:18" (1/1) ... [2022-11-16 11:12:18,749 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:12:18" (1/1) ... [2022-11-16 11:12:18,749 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:12:18" (1/1) ... [2022-11-16 11:12:18,752 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:12:18" (1/1) ... [2022-11-16 11:12:18,756 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:12:18" (1/1) ... [2022-11-16 11:12:18,757 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:12:18" (1/1) ... [2022-11-16 11:12:18,758 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:12:18" (1/1) ... [2022-11-16 11:12:18,760 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-16 11:12:18,761 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-16 11:12:18,761 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-16 11:12:18,761 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-16 11:12:18,762 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:12:18" (1/1) ... [2022-11-16 11:12:18,770 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 11:12:18,785 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b66a96b-c245-47ab-9d1f-08a707f6e09c/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:12:18,806 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b66a96b-c245-47ab-9d1f-08a707f6e09c/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-16 11:12:18,809 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b66a96b-c245-47ab-9d1f-08a707f6e09c/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-16 11:12:18,853 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-16 11:12:18,853 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-16 11:12:18,853 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-16 11:12:18,853 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-16 11:12:18,927 INFO L235 CfgBuilder]: Building ICFG [2022-11-16 11:12:18,930 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-16 11:12:19,103 INFO L276 CfgBuilder]: Performing block encoding [2022-11-16 11:12:19,110 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-16 11:12:19,110 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-16 11:12:19,112 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 11:12:19 BoogieIcfgContainer [2022-11-16 11:12:19,112 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-16 11:12:19,114 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-16 11:12:19,114 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-16 11:12:19,118 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-16 11:12:19,119 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 11:12:18" (1/3) ... [2022-11-16 11:12:19,119 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@51422024 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 11:12:19, skipping insertion in model container [2022-11-16 11:12:19,120 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:12:18" (2/3) ... [2022-11-16 11:12:19,120 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@51422024 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 11:12:19, skipping insertion in model container [2022-11-16 11:12:19,120 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 11:12:19" (3/3) ... [2022-11-16 11:12:19,122 INFO L112 eAbstractionObserver]: Analyzing ICFG simple_3-1.c [2022-11-16 11:12:19,143 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-16 11:12:19,143 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-16 11:12:19,196 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-16 11:12:19,204 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;@788e0d38, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-16 11:12:19,204 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-16 11:12:19,208 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) [2022-11-16 11:12:19,214 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-11-16 11:12:19,215 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:12:19,215 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-11-16 11:12:19,216 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 11:12:19,221 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:12:19,222 INFO L85 PathProgramCache]: Analyzing trace with hash 889633835, now seen corresponding path program 1 times [2022-11-16 11:12:19,233 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:12:19,233 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [438004696] [2022-11-16 11:12:19,234 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:12:19,234 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:12:19,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 11:12:19,355 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-16 11:12:19,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 11:12:19,399 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-16 11:12:19,402 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-16 11:12:19,403 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-16 11:12:19,406 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-16 11:12:19,411 INFO L444 BasicCegarLoop]: Path program histogram: [1] [2022-11-16 11:12:19,417 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-16 11:12:19,442 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.11 11:12:19 BoogieIcfgContainer [2022-11-16 11:12:19,443 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-16 11:12:19,445 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-16 11:12:19,446 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-16 11:12:19,446 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-16 11:12:19,447 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 11:12:19" (3/4) ... [2022-11-16 11:12:19,449 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-11-16 11:12:19,503 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b66a96b-c245-47ab-9d1f-08a707f6e09c/bin/uautomizer-tPACEb0tL8/witness.graphml [2022-11-16 11:12:19,503 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-16 11:12:19,505 INFO L158 Benchmark]: Toolchain (without parser) took 1122.94ms. Allocated memory is still 125.8MB. Free memory was 90.8MB in the beginning and 75.1MB in the end (delta: 15.7MB). Peak memory consumption was 12.3MB. Max. memory is 16.1GB. [2022-11-16 11:12:19,509 INFO L158 Benchmark]: CDTParser took 0.30ms. Allocated memory is still 125.8MB. Free memory was 106.8MB in the beginning and 106.7MB in the end (delta: 119.1kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-16 11:12:19,513 INFO L158 Benchmark]: CACSL2BoogieTranslator took 311.89ms. Allocated memory is still 125.8MB. Free memory was 90.5MB in the beginning and 102.7MB in the end (delta: -12.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-11-16 11:12:19,514 INFO L158 Benchmark]: Boogie Procedure Inliner took 36.22ms. Allocated memory is still 125.8MB. Free memory was 102.7MB in the beginning and 101.3MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-16 11:12:19,515 INFO L158 Benchmark]: Boogie Preprocessor took 24.22ms. Allocated memory is still 125.8MB. Free memory was 101.3MB in the beginning and 100.2MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-16 11:12:19,516 INFO L158 Benchmark]: RCFGBuilder took 351.77ms. Allocated memory is still 125.8MB. Free memory was 100.2MB in the beginning and 91.3MB in the end (delta: 8.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-16 11:12:19,516 INFO L158 Benchmark]: TraceAbstraction took 328.64ms. Allocated memory is still 125.8MB. Free memory was 90.2MB in the beginning and 76.6MB in the end (delta: 13.6MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-11-16 11:12:19,518 INFO L158 Benchmark]: Witness Printer took 58.68ms. Allocated memory is still 125.8MB. Free memory was 76.6MB in the beginning and 75.1MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-16 11:12:19,524 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30ms. Allocated memory is still 125.8MB. Free memory was 106.8MB in the beginning and 106.7MB in the end (delta: 119.1kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 311.89ms. Allocated memory is still 125.8MB. Free memory was 90.5MB in the beginning and 102.7MB in the end (delta: -12.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 36.22ms. Allocated memory is still 125.8MB. Free memory was 102.7MB in the beginning and 101.3MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 24.22ms. Allocated memory is still 125.8MB. Free memory was 101.3MB in the beginning and 100.2MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 351.77ms. Allocated memory is still 125.8MB. Free memory was 100.2MB in the beginning and 91.3MB in the end (delta: 8.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 328.64ms. Allocated memory is still 125.8MB. Free memory was 90.2MB in the beginning and 76.6MB in the end (delta: 13.6MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Witness Printer took 58.68ms. Allocated memory is still 125.8MB. Free memory was 76.6MB in the beginning and 75.1MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 8]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L14] unsigned int x = 0; [L15] unsigned short N = __VERIFIER_nondet_ushort(); [L17] COND FALSE !(x < N) VAL [N=0, x=0] [L21] CALL __VERIFIER_assert(x % 2) [L7] COND TRUE !(cond) VAL [\old(cond)=0, cond=0] [L8] reach_error() VAL [\old(cond)=0, cond=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 11 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.2s, 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, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 6 NumberOfCodeBlocks, 6 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 proved your program to be incorrect! [2022-11-16 11:12:19,557 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b66a96b-c245-47ab-9d1f-08a707f6e09c/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 Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE