./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-regression/test08.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version dbf71c69 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adba7fd2-4910-432a-a7c9-5e19e4bb833f/bin/uautomizer-J5u9QxTXDZ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adba7fd2-4910-432a-a7c9-5e19e4bb833f/bin/uautomizer-J5u9QxTXDZ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adba7fd2-4910-432a-a7c9-5e19e4bb833f/bin/uautomizer-J5u9QxTXDZ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adba7fd2-4910-432a-a7c9-5e19e4bb833f/bin/uautomizer-J5u9QxTXDZ/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-regression/test08.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adba7fd2-4910-432a-a7c9-5e19e4bb833f/bin/uautomizer-J5u9QxTXDZ/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adba7fd2-4910-432a-a7c9-5e19e4bb833f/bin/uautomizer-J5u9QxTXDZ --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 55f41c66c50792cda5d5bbe104482e2cd600942b05623220f52aeb9f6286617d --- 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-dbf71c6-m [2022-10-17 10:41:32,342 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-17 10:41:32,344 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-17 10:41:32,375 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-17 10:41:32,376 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-17 10:41:32,377 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-17 10:41:32,379 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-17 10:41:32,381 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-17 10:41:32,383 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-17 10:41:32,384 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-17 10:41:32,385 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-17 10:41:32,387 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-17 10:41:32,387 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-17 10:41:32,389 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-17 10:41:32,390 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-17 10:41:32,391 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-17 10:41:32,392 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-17 10:41:32,393 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-17 10:41:32,395 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-17 10:41:32,398 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-17 10:41:32,400 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-17 10:41:32,402 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-17 10:41:32,403 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-17 10:41:32,404 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-17 10:41:32,409 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-10-17 10:41:32,410 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-10-17 10:41:32,410 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-10-17 10:41:32,411 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-10-17 10:41:32,412 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-10-17 10:41:32,413 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-10-17 10:41:32,414 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-17 10:41:32,415 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-17 10:41:32,416 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-17 10:41:32,416 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-17 10:41:32,418 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-17 10:41:32,418 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-17 10:41:32,419 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-17 10:41:32,419 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-17 10:41:32,420 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-17 10:41:32,421 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-17 10:41:32,422 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-17 10:41:32,423 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adba7fd2-4910-432a-a7c9-5e19e4bb833f/bin/uautomizer-J5u9QxTXDZ/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-10-17 10:41:32,447 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-17 10:41:32,447 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-17 10:41:32,448 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-17 10:41:32,448 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-17 10:41:32,449 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-17 10:41:32,449 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-17 10:41:32,450 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-17 10:41:32,450 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-17 10:41:32,450 INFO L138 SettingsManager]: * Use SBE=true [2022-10-17 10:41:32,451 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-17 10:41:32,451 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-17 10:41:32,451 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-17 10:41:32,452 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-17 10:41:32,452 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-17 10:41:32,452 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-17 10:41:32,452 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-17 10:41:32,452 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-17 10:41:32,453 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-17 10:41:32,453 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-17 10:41:32,453 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-17 10:41:32,453 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-17 10:41:32,454 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-17 10:41:32,454 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-17 10:41:32,454 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-17 10:41:32,454 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-17 10:41:32,455 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-17 10:41:32,455 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-17 10:41:32,455 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-17 10:41:32,455 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-17 10:41:32,455 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-17 10:41:32,456 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-10-17 10:41:32,456 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-10-17 10:41:32,456 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-17 10:41:32,456 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_adba7fd2-4910-432a-a7c9-5e19e4bb833f/bin/uautomizer-J5u9QxTXDZ/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adba7fd2-4910-432a-a7c9-5e19e4bb833f/bin/uautomizer-J5u9QxTXDZ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 55f41c66c50792cda5d5bbe104482e2cd600942b05623220f52aeb9f6286617d [2022-10-17 10:41:32,701 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-17 10:41:32,735 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-17 10:41:32,739 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-17 10:41:32,740 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-17 10:41:32,741 INFO L275 PluginConnector]: CDTParser initialized [2022-10-17 10:41:32,742 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adba7fd2-4910-432a-a7c9-5e19e4bb833f/bin/uautomizer-J5u9QxTXDZ/../../sv-benchmarks/c/ldv-regression/test08.c [2022-10-17 10:41:32,821 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adba7fd2-4910-432a-a7c9-5e19e4bb833f/bin/uautomizer-J5u9QxTXDZ/data/ae628eb38/0a39b795a15945f29adc805bda838e07/FLAGb83466c09 [2022-10-17 10:41:33,251 INFO L306 CDTParser]: Found 1 translation units. [2022-10-17 10:41:33,252 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adba7fd2-4910-432a-a7c9-5e19e4bb833f/sv-benchmarks/c/ldv-regression/test08.c [2022-10-17 10:41:33,261 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adba7fd2-4910-432a-a7c9-5e19e4bb833f/bin/uautomizer-J5u9QxTXDZ/data/ae628eb38/0a39b795a15945f29adc805bda838e07/FLAGb83466c09 [2022-10-17 10:41:33,670 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adba7fd2-4910-432a-a7c9-5e19e4bb833f/bin/uautomizer-J5u9QxTXDZ/data/ae628eb38/0a39b795a15945f29adc805bda838e07 [2022-10-17 10:41:33,673 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-17 10:41:33,676 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-10-17 10:41:33,681 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-17 10:41:33,681 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-17 10:41:33,685 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-17 10:41:33,686 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 10:41:33" (1/1) ... [2022-10-17 10:41:33,688 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@12e6d4a7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:41:33, skipping insertion in model container [2022-10-17 10:41:33,688 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 10:41:33" (1/1) ... [2022-10-17 10:41:33,694 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-17 10:41:33,713 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-17 10:41:33,990 WARN L230 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_adba7fd2-4910-432a-a7c9-5e19e4bb833f/sv-benchmarks/c/ldv-regression/test08.c[578,591] [2022-10-17 10:41:33,996 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 10:41:34,006 INFO L203 MainTranslator]: Completed pre-run [2022-10-17 10:41:34,029 WARN L230 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_adba7fd2-4910-432a-a7c9-5e19e4bb833f/sv-benchmarks/c/ldv-regression/test08.c[578,591] [2022-10-17 10:41:34,031 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 10:41:34,048 INFO L208 MainTranslator]: Completed translation [2022-10-17 10:41:34,049 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:41:34 WrapperNode [2022-10-17 10:41:34,049 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-17 10:41:34,050 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-17 10:41:34,050 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-17 10:41:34,051 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-17 10:41:34,058 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:41:34" (1/1) ... [2022-10-17 10:41:34,066 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:41:34" (1/1) ... [2022-10-17 10:41:34,087 INFO L138 Inliner]: procedures = 12, calls = 21, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 56 [2022-10-17 10:41:34,088 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-17 10:41:34,089 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-17 10:41:34,089 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-17 10:41:34,089 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-17 10:41:34,097 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:41:34" (1/1) ... [2022-10-17 10:41:34,097 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:41:34" (1/1) ... [2022-10-17 10:41:34,108 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:41:34" (1/1) ... [2022-10-17 10:41:34,108 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:41:34" (1/1) ... [2022-10-17 10:41:34,112 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:41:34" (1/1) ... [2022-10-17 10:41:34,115 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:41:34" (1/1) ... [2022-10-17 10:41:34,123 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:41:34" (1/1) ... [2022-10-17 10:41:34,124 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:41:34" (1/1) ... [2022-10-17 10:41:34,125 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-17 10:41:34,126 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-17 10:41:34,126 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-17 10:41:34,127 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-17 10:41:34,129 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:41:34" (1/1) ... [2022-10-17 10:41:34,135 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-17 10:41:34,149 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adba7fd2-4910-432a-a7c9-5e19e4bb833f/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:41:34,161 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adba7fd2-4910-432a-a7c9-5e19e4bb833f/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-10-17 10:41:34,192 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adba7fd2-4910-432a-a7c9-5e19e4bb833f/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-10-17 10:41:34,208 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-10-17 10:41:34,208 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-17 10:41:34,209 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-17 10:41:34,209 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-17 10:41:34,209 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-10-17 10:41:34,209 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-17 10:41:34,288 INFO L235 CfgBuilder]: Building ICFG [2022-10-17 10:41:34,291 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-17 10:41:34,425 INFO L276 CfgBuilder]: Performing block encoding [2022-10-17 10:41:34,431 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-17 10:41:34,431 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-10-17 10:41:34,433 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 10:41:34 BoogieIcfgContainer [2022-10-17 10:41:34,434 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-17 10:41:34,436 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-17 10:41:34,437 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-17 10:41:34,441 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-17 10:41:34,441 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.10 10:41:33" (1/3) ... [2022-10-17 10:41:34,442 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4f9c74e4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.10 10:41:34, skipping insertion in model container [2022-10-17 10:41:34,442 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:41:34" (2/3) ... [2022-10-17 10:41:34,443 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4f9c74e4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.10 10:41:34, skipping insertion in model container [2022-10-17 10:41:34,443 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 10:41:34" (3/3) ... [2022-10-17 10:41:34,444 INFO L112 eAbstractionObserver]: Analyzing ICFG test08.c [2022-10-17 10:41:34,465 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-17 10:41:34,465 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-10-17 10:41:34,518 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-17 10:41:34,526 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;@3508983b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-17 10:41:34,526 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-10-17 10:41:34,531 INFO L276 IsEmpty]: Start isEmpty. Operand has 10 states, 8 states have (on average 1.375) internal successors, (11), 9 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) [2022-10-17 10:41:34,537 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-10-17 10:41:34,538 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 10:41:34,538 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-10-17 10:41:34,539 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-10-17 10:41:34,544 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:41:34,545 INFO L85 PathProgramCache]: Analyzing trace with hash 889508715, now seen corresponding path program 1 times [2022-10-17 10:41:34,555 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:41:34,555 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [166740870] [2022-10-17 10:41:34,556 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:41:34,556 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:41:34,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:41:34,695 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-10-17 10:41:34,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:41:34,746 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-10-17 10:41:34,748 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-10-17 10:41:34,750 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-10-17 10:41:34,752 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-17 10:41:34,757 INFO L444 BasicCegarLoop]: Path program histogram: [1] [2022-10-17 10:41:34,762 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-10-17 10:41:34,806 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 17.10 10:41:34 BoogieIcfgContainer [2022-10-17 10:41:34,807 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-10-17 10:41:34,809 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-10-17 10:41:34,809 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-10-17 10:41:34,810 INFO L275 PluginConnector]: Witness Printer initialized [2022-10-17 10:41:34,811 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 10:41:34" (3/4) ... [2022-10-17 10:41:34,814 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-10-17 10:41:34,876 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adba7fd2-4910-432a-a7c9-5e19e4bb833f/bin/uautomizer-J5u9QxTXDZ/witness.graphml [2022-10-17 10:41:34,876 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-10-17 10:41:34,878 INFO L158 Benchmark]: Toolchain (without parser) took 1201.44ms. Allocated memory was 113.2MB in the beginning and 142.6MB in the end (delta: 29.4MB). Free memory was 77.7MB in the beginning and 119.9MB in the end (delta: -42.3MB). There was no memory consumed. Max. memory is 16.1GB. [2022-10-17 10:41:34,878 INFO L158 Benchmark]: CDTParser took 0.28ms. Allocated memory is still 113.2MB. Free memory was 85.9MB in the beginning and 85.9MB in the end (delta: 25.3kB). There was no memory consumed. Max. memory is 16.1GB. [2022-10-17 10:41:34,879 INFO L158 Benchmark]: CACSL2BoogieTranslator took 368.44ms. Allocated memory is still 113.2MB. Free memory was 77.3MB in the beginning and 87.1MB in the end (delta: -9.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-10-17 10:41:34,879 INFO L158 Benchmark]: Boogie Procedure Inliner took 37.85ms. Allocated memory is still 113.2MB. Free memory was 87.1MB in the beginning and 85.8MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-10-17 10:41:34,880 INFO L158 Benchmark]: Boogie Preprocessor took 37.00ms. Allocated memory is still 113.2MB. Free memory was 85.8MB in the beginning and 84.5MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-10-17 10:41:34,881 INFO L158 Benchmark]: RCFGBuilder took 307.64ms. Allocated memory is still 113.2MB. Free memory was 84.5MB in the beginning and 74.5MB in the end (delta: 10.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-10-17 10:41:34,881 INFO L158 Benchmark]: TraceAbstraction took 370.55ms. Allocated memory is still 113.2MB. Free memory was 74.0MB in the beginning and 88.5MB in the end (delta: -14.5MB). Peak memory consumption was 18.6MB. Max. memory is 16.1GB. [2022-10-17 10:41:34,882 INFO L158 Benchmark]: Witness Printer took 67.07ms. Allocated memory was 113.2MB in the beginning and 142.6MB in the end (delta: 29.4MB). Free memory was 88.4MB in the beginning and 119.9MB in the end (delta: -31.5MB). Peak memory consumption was 2.2MB. Max. memory is 16.1GB. [2022-10-17 10:41:34,885 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28ms. Allocated memory is still 113.2MB. Free memory was 85.9MB in the beginning and 85.9MB in the end (delta: 25.3kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 368.44ms. Allocated memory is still 113.2MB. Free memory was 77.3MB in the beginning and 87.1MB in the end (delta: -9.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 37.85ms. Allocated memory is still 113.2MB. Free memory was 87.1MB in the beginning and 85.8MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 37.00ms. Allocated memory is still 113.2MB. Free memory was 85.8MB in the beginning and 84.5MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 307.64ms. Allocated memory is still 113.2MB. Free memory was 84.5MB in the beginning and 74.5MB in the end (delta: 10.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 370.55ms. Allocated memory is still 113.2MB. Free memory was 74.0MB in the beginning and 88.5MB in the end (delta: -14.5MB). Peak memory consumption was 18.6MB. Max. memory is 16.1GB. * Witness Printer took 67.07ms. Allocated memory was 113.2MB in the beginning and 142.6MB in the end (delta: 29.4MB). Free memory was 88.4MB in the beginning and 119.9MB in the end (delta: -31.5MB). Peak memory consumption was 2.2MB. 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 - CounterExampleResult [Line: 38]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L6] int a, b; [L7] int *p1, *p2; VAL [a={4:0}, b={5:0}, p1={0:0}, p2={0:0}] [L21] p1 = &a [L22] p2 = &b [L24] b = 1 [L25] a = 5 [L27] EXPR \read(a) [L27] a-- [L29] CALL, EXPR f() [L10] EXPR \read(*p1) [L10] EXPR \read(*p2) [L10] EXPR \read(a) [L10] int v = *p1 + *p2 - a; [L11] COND TRUE v == 1 [L12] p1 = p2 [L13] return v; VAL [\result=1, a={4:0}, b={5:0}, p1={5:0}, p2={5:0}, v=1] [L29] RET, EXPR f() [L29] a = f() [L31] EXPR \read(a) VAL [\read(a)=1, a={4:0}, b={5:0}, p1={5:0}, p2={5:0}] [L31] COND TRUE a && p1 == p2 [L38] reach_error() VAL [a={4:0}, b={5:0}, p1={5:0}, p2={5:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 10 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.3s, 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=10occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 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! [2022-10-17 10:41:34,935 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adba7fd2-4910-432a-a7c9-5e19e4bb833f/bin/uautomizer-J5u9QxTXDZ/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