./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/xcsp/Dubois-060.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6b4ec56b Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bcd5bfc-f2d6-4374-bb14-4c6155458d16/bin/uautomizer-ug76WZFUDN/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bcd5bfc-f2d6-4374-bb14-4c6155458d16/bin/uautomizer-ug76WZFUDN/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bcd5bfc-f2d6-4374-bb14-4c6155458d16/bin/uautomizer-ug76WZFUDN/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bcd5bfc-f2d6-4374-bb14-4c6155458d16/bin/uautomizer-ug76WZFUDN/config/AutomizerReach.xml -i ../../sv-benchmarks/c/xcsp/Dubois-060.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bcd5bfc-f2d6-4374-bb14-4c6155458d16/bin/uautomizer-ug76WZFUDN/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bcd5bfc-f2d6-4374-bb14-4c6155458d16/bin/uautomizer-ug76WZFUDN --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 6c6c6bcdd72ea020631275d05f53f3a85eefff832aea60657c8517ea7b38d6be --- 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-6b4ec56 [2022-11-20 11:22:23,181 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 11:22:23,184 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 11:22:23,232 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 11:22:23,232 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 11:22:23,234 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 11:22:23,248 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 11:22:23,251 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 11:22:23,255 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 11:22:23,259 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 11:22:23,261 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 11:22:23,264 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 11:22:23,266 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 11:22:23,273 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 11:22:23,275 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 11:22:23,278 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 11:22:23,282 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 11:22:23,284 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 11:22:23,286 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 11:22:23,288 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 11:22:23,290 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 11:22:23,291 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 11:22:23,293 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 11:22:23,294 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 11:22:23,299 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 11:22:23,299 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 11:22:23,300 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 11:22:23,301 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 11:22:23,302 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 11:22:23,303 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 11:22:23,303 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 11:22:23,306 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 11:22:23,308 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 11:22:23,310 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 11:22:23,311 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 11:22:23,312 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 11:22:23,313 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 11:22:23,313 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 11:22:23,314 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 11:22:23,319 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 11:22:23,320 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 11:22:23,321 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bcd5bfc-f2d6-4374-bb14-4c6155458d16/bin/uautomizer-ug76WZFUDN/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-11-20 11:22:23,373 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 11:22:23,373 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 11:22:23,374 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 11:22:23,374 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 11:22:23,376 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 11:22:23,376 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-20 11:22:23,377 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-20 11:22:23,378 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-20 11:22:23,378 INFO L138 SettingsManager]: * Use SBE=true [2022-11-20 11:22:23,378 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 11:22:23,380 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-20 11:22:23,380 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-20 11:22:23,381 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-20 11:22:23,381 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 11:22:23,381 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 11:22:23,381 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 11:22:23,382 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 11:22:23,382 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-20 11:22:23,382 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 11:22:23,383 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 11:22:23,383 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 11:22:23,383 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 11:22:23,384 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-20 11:22:23,384 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-20 11:22:23,384 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 11:22:23,384 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 11:22:23,385 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 11:22:23,385 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 11:22:23,386 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-20 11:22:23,386 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-20 11:22:23,387 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-20 11:22:23,387 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-20 11:22:23,387 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 11:22:23,388 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_4bcd5bfc-f2d6-4374-bb14-4c6155458d16/bin/uautomizer-ug76WZFUDN/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bcd5bfc-f2d6-4374-bb14-4c6155458d16/bin/uautomizer-ug76WZFUDN Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6c6c6bcdd72ea020631275d05f53f3a85eefff832aea60657c8517ea7b38d6be [2022-11-20 11:22:23,788 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 11:22:23,825 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 11:22:23,828 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 11:22:23,829 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 11:22:23,830 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 11:22:23,831 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bcd5bfc-f2d6-4374-bb14-4c6155458d16/bin/uautomizer-ug76WZFUDN/../../sv-benchmarks/c/xcsp/Dubois-060.c [2022-11-20 11:22:27,000 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 11:22:27,487 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 11:22:27,488 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bcd5bfc-f2d6-4374-bb14-4c6155458d16/sv-benchmarks/c/xcsp/Dubois-060.c [2022-11-20 11:22:27,509 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bcd5bfc-f2d6-4374-bb14-4c6155458d16/bin/uautomizer-ug76WZFUDN/data/05c6fef5b/c503e7e4acf345b79915a6823028cc4a/FLAG0b03d5ba2 [2022-11-20 11:22:27,526 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bcd5bfc-f2d6-4374-bb14-4c6155458d16/bin/uautomizer-ug76WZFUDN/data/05c6fef5b/c503e7e4acf345b79915a6823028cc4a [2022-11-20 11:22:27,530 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 11:22:27,532 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 11:22:27,533 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 11:22:27,533 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 11:22:27,538 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 11:22:27,539 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 11:22:27" (1/1) ... [2022-11-20 11:22:27,540 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7e2cc6c6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:22:27, skipping insertion in model container [2022-11-20 11:22:27,540 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 11:22:27" (1/1) ... [2022-11-20 11:22:27,549 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 11:22:27,607 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 11:22:28,120 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bcd5bfc-f2d6-4374-bb14-4c6155458d16/sv-benchmarks/c/xcsp/Dubois-060.c[42720,42733] [2022-11-20 11:22:28,283 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 11:22:28,296 INFO L203 MainTranslator]: Completed pre-run [2022-11-20 11:22:28,426 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bcd5bfc-f2d6-4374-bb14-4c6155458d16/sv-benchmarks/c/xcsp/Dubois-060.c[42720,42733] [2022-11-20 11:22:28,534 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 11:22:28,548 INFO L208 MainTranslator]: Completed translation [2022-11-20 11:22:28,549 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:22:28 WrapperNode [2022-11-20 11:22:28,549 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-20 11:22:28,550 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-20 11:22:28,550 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-20 11:22:28,551 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-20 11:22:28,558 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:22:28" (1/1) ... [2022-11-20 11:22:28,622 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:22:28" (1/1) ... [2022-11-20 11:22:41,805 INFO L138 Inliner]: procedures = 13, calls = 487, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 1217 [2022-11-20 11:22:41,806 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-20 11:22:41,807 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-20 11:22:41,807 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-20 11:22:41,807 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-20 11:22:41,830 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:22:28" (1/1) ... [2022-11-20 11:22:41,830 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:22:28" (1/1) ... [2022-11-20 11:22:45,666 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:22:28" (1/1) ... [2022-11-20 11:22:45,667 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:22:28" (1/1) ... [2022-11-20 11:22:52,704 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:22:28" (1/1) ... [2022-11-20 11:22:52,724 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:22:28" (1/1) ... [2022-11-20 11:22:53,144 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:22:28" (1/1) ... [2022-11-20 11:22:53,300 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:22:28" (1/1) ... [2022-11-20 11:22:56,759 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-20 11:22:56,770 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-20 11:22:56,771 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-20 11:22:56,779 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-20 11:22:56,779 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:22:28" (1/1) ... [2022-11-20 11:22:56,790 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 11:22:56,807 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bcd5bfc-f2d6-4374-bb14-4c6155458d16/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 11:22:56,822 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bcd5bfc-f2d6-4374-bb14-4c6155458d16/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-20 11:22:56,841 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bcd5bfc-f2d6-4374-bb14-4c6155458d16/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-20 11:22:56,871 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-20 11:22:56,871 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-20 11:22:56,872 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-20 11:22:56,872 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-20 11:22:56,872 INFO L130 BoogieDeclarations]: Found specification of procedure assume [2022-11-20 11:22:56,872 INFO L138 BoogieDeclarations]: Found implementation of procedure assume [2022-11-20 11:22:57,120 INFO L235 CfgBuilder]: Building ICFG [2022-11-20 11:22:57,132 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-20 11:23:10,700 INFO L276 CfgBuilder]: Performing block encoding [2022-11-20 11:23:10,713 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-20 11:23:10,713 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-20 11:23:10,716 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:23:10 BoogieIcfgContainer [2022-11-20 11:23:10,716 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-20 11:23:10,719 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-20 11:23:10,719 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-20 11:23:10,722 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-20 11:23:10,723 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 11:22:27" (1/3) ... [2022-11-20 11:23:10,723 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@53e48d5a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 11:23:10, skipping insertion in model container [2022-11-20 11:23:10,724 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:22:28" (2/3) ... [2022-11-20 11:23:10,724 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@53e48d5a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 11:23:10, skipping insertion in model container [2022-11-20 11:23:10,724 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:23:10" (3/3) ... [2022-11-20 11:23:10,726 INFO L112 eAbstractionObserver]: Analyzing ICFG Dubois-060.c [2022-11-20 11:23:10,746 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-20 11:23:10,746 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-20 11:23:10,822 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-20 11:23:10,829 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;@69927fbe, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 11:23:10,830 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-20 11:23:10,836 INFO L276 IsEmpty]: Start isEmpty. Operand has 671 states, 188 states have (on average 1.0106382978723405) internal successors, (190), 189 states have internal predecessors, (190), 480 states have call successors, (480), 1 states have call predecessors, (480), 1 states have return successors, (480), 480 states have call predecessors, (480), 480 states have call successors, (480) [2022-11-20 11:23:11,088 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2584 [2022-11-20 11:23:11,088 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:23:11,092 INFO L195 NwaCegarLoop]: trace histogram [480, 480, 480, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:23:11,093 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 11:23:11,099 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:23:11,100 INFO L85 PathProgramCache]: Analyzing trace with hash -333670346, now seen corresponding path program 1 times [2022-11-20 11:23:11,110 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:23:11,111 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1137366803] [2022-11-20 11:23:11,112 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:23:11,112 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:23:37,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat