./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-regression/1_3.i --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_8358ad81-33ec-4891-adb7-e03eab9f1f89/bin/uautomizer-J5u9QxTXDZ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8358ad81-33ec-4891-adb7-e03eab9f1f89/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_8358ad81-33ec-4891-adb7-e03eab9f1f89/bin/uautomizer-J5u9QxTXDZ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8358ad81-33ec-4891-adb7-e03eab9f1f89/bin/uautomizer-J5u9QxTXDZ/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-regression/1_3.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8358ad81-33ec-4891-adb7-e03eab9f1f89/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_8358ad81-33ec-4891-adb7-e03eab9f1f89/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 900cc87915f78d8f9b7a01f7b163a61da3f269083f153e9256c9ee6a33b8e554 --- 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 10:29:28,610 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-17 10:29:28,613 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-17 10:29:28,671 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-17 10:29:28,671 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-17 10:29:28,675 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-17 10:29:28,678 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-17 10:29:28,681 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-17 10:29:28,684 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-17 10:29:28,690 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-17 10:29:28,691 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-17 10:29:28,694 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-17 10:29:28,695 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-17 10:29:28,698 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-17 10:29:28,700 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-17 10:29:28,703 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-17 10:29:28,705 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-17 10:29:28,706 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-17 10:29:28,708 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-17 10:29:28,718 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-17 10:29:28,721 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-17 10:29:28,722 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-17 10:29:28,727 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-17 10:29:28,728 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-17 10:29:28,739 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-10-17 10:29:28,739 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-10-17 10:29:28,740 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-10-17 10:29:28,742 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-10-17 10:29:28,742 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-10-17 10:29:28,744 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-10-17 10:29:28,745 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-17 10:29:28,747 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-17 10:29:28,749 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-17 10:29:28,750 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-17 10:29:28,752 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-17 10:29:28,752 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-17 10:29:28,753 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-17 10:29:28,753 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-17 10:29:28,753 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-17 10:29:28,754 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-17 10:29:28,755 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-17 10:29:28,757 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8358ad81-33ec-4891-adb7-e03eab9f1f89/bin/uautomizer-J5u9QxTXDZ/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-10-17 10:29:28,800 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-17 10:29:28,801 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-17 10:29:28,801 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-17 10:29:28,802 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-17 10:29:28,803 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-17 10:29:28,803 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-17 10:29:28,804 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-17 10:29:28,804 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-17 10:29:28,804 INFO L138 SettingsManager]: * Use SBE=true [2022-10-17 10:29:28,805 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-17 10:29:28,806 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-17 10:29:28,806 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-17 10:29:28,806 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-17 10:29:28,807 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-17 10:29:28,807 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-17 10:29:28,807 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-17 10:29:28,807 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-17 10:29:28,808 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-17 10:29:28,808 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-17 10:29:28,808 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-17 10:29:28,808 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-17 10:29:28,809 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-17 10:29:28,809 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-17 10:29:28,809 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-17 10:29:28,809 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-17 10:29:28,810 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-17 10:29:28,811 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-17 10:29:28,812 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-17 10:29:28,812 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-17 10:29:28,812 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-17 10:29:28,812 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-10-17 10:29:28,813 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-10-17 10:29:28,813 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-17 10:29:28,813 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_8358ad81-33ec-4891-adb7-e03eab9f1f89/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8358ad81-33ec-4891-adb7-e03eab9f1f89/bin/uautomizer-J5u9QxTXDZ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 900cc87915f78d8f9b7a01f7b163a61da3f269083f153e9256c9ee6a33b8e554 [2022-10-17 10:29:29,131 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-17 10:29:29,155 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-17 10:29:29,157 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-17 10:29:29,159 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-17 10:29:29,160 INFO L275 PluginConnector]: CDTParser initialized [2022-10-17 10:29:29,161 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8358ad81-33ec-4891-adb7-e03eab9f1f89/bin/uautomizer-J5u9QxTXDZ/../../sv-benchmarks/c/ldv-regression/1_3.i [2022-10-17 10:29:29,233 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8358ad81-33ec-4891-adb7-e03eab9f1f89/bin/uautomizer-J5u9QxTXDZ/data/6f9b74904/c2ccb9df7039488cb6cdb235d61aaf1a/FLAG681c9dc8f [2022-10-17 10:29:29,769 INFO L306 CDTParser]: Found 1 translation units. [2022-10-17 10:29:29,769 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8358ad81-33ec-4891-adb7-e03eab9f1f89/sv-benchmarks/c/ldv-regression/1_3.i [2022-10-17 10:29:29,776 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8358ad81-33ec-4891-adb7-e03eab9f1f89/bin/uautomizer-J5u9QxTXDZ/data/6f9b74904/c2ccb9df7039488cb6cdb235d61aaf1a/FLAG681c9dc8f [2022-10-17 10:29:30,137 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8358ad81-33ec-4891-adb7-e03eab9f1f89/bin/uautomizer-J5u9QxTXDZ/data/6f9b74904/c2ccb9df7039488cb6cdb235d61aaf1a [2022-10-17 10:29:30,141 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-17 10:29:30,144 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-10-17 10:29:30,148 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-17 10:29:30,148 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-17 10:29:30,152 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-17 10:29:30,153 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 10:29:30" (1/1) ... [2022-10-17 10:29:30,155 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6f4cec2b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:29:30, skipping insertion in model container [2022-10-17 10:29:30,155 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 10:29:30" (1/1) ... [2022-10-17 10:29:30,163 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-17 10:29:30,183 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-17 10:29:30,360 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_8358ad81-33ec-4891-adb7-e03eab9f1f89/sv-benchmarks/c/ldv-regression/1_3.i[285,298] [2022-10-17 10:29:30,394 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 10:29:30,405 INFO L203 MainTranslator]: Completed pre-run [2022-10-17 10:29:30,419 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_8358ad81-33ec-4891-adb7-e03eab9f1f89/sv-benchmarks/c/ldv-regression/1_3.i[285,298] [2022-10-17 10:29:30,429 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 10:29:30,448 INFO L208 MainTranslator]: Completed translation [2022-10-17 10:29:30,449 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:29:30 WrapperNode [2022-10-17 10:29:30,449 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-17 10:29:30,450 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-17 10:29:30,451 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-17 10:29:30,451 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-17 10:29:30,459 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:29:30" (1/1) ... [2022-10-17 10:29:30,467 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:29:30" (1/1) ... [2022-10-17 10:29:30,492 INFO L138 Inliner]: procedures = 18, calls = 23, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 45 [2022-10-17 10:29:30,492 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-17 10:29:30,494 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-17 10:29:30,494 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-17 10:29:30,494 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-17 10:29:30,503 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:29:30" (1/1) ... [2022-10-17 10:29:30,504 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:29:30" (1/1) ... [2022-10-17 10:29:30,516 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:29:30" (1/1) ... [2022-10-17 10:29:30,517 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:29:30" (1/1) ... [2022-10-17 10:29:30,523 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:29:30" (1/1) ... [2022-10-17 10:29:30,527 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:29:30" (1/1) ... [2022-10-17 10:29:30,532 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:29:30" (1/1) ... [2022-10-17 10:29:30,534 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:29:30" (1/1) ... [2022-10-17 10:29:30,539 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-17 10:29:30,542 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-17 10:29:30,542 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-17 10:29:30,543 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-17 10:29:30,544 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:29:30" (1/1) ... [2022-10-17 10:29:30,550 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-17 10:29:30,562 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8358ad81-33ec-4891-adb7-e03eab9f1f89/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:29:30,581 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8358ad81-33ec-4891-adb7-e03eab9f1f89/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-10-17 10:29:30,610 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8358ad81-33ec-4891-adb7-e03eab9f1f89/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-10-17 10:29:30,626 INFO L130 BoogieDeclarations]: Found specification of procedure freePtr [2022-10-17 10:29:30,626 INFO L138 BoogieDeclarations]: Found implementation of procedure freePtr [2022-10-17 10:29:30,626 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-17 10:29:30,626 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-17 10:29:30,627 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-10-17 10:29:30,627 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-10-17 10:29:30,627 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-17 10:29:30,627 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-17 10:29:30,627 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-10-17 10:29:30,701 INFO L235 CfgBuilder]: Building ICFG [2022-10-17 10:29:30,703 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-17 10:29:30,895 INFO L276 CfgBuilder]: Performing block encoding [2022-10-17 10:29:30,916 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-17 10:29:30,917 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-10-17 10:29:30,919 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 10:29:30 BoogieIcfgContainer [2022-10-17 10:29:30,935 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-17 10:29:30,938 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-17 10:29:30,938 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-17 10:29:30,944 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-17 10:29:30,944 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.10 10:29:30" (1/3) ... [2022-10-17 10:29:30,945 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@462dff06 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.10 10:29:30, skipping insertion in model container [2022-10-17 10:29:30,946 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:29:30" (2/3) ... [2022-10-17 10:29:30,946 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@462dff06 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.10 10:29:30, skipping insertion in model container [2022-10-17 10:29:30,946 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 10:29:30" (3/3) ... [2022-10-17 10:29:30,948 INFO L112 eAbstractionObserver]: Analyzing ICFG 1_3.i [2022-10-17 10:29:30,967 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-17 10:29:30,968 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-10-17 10:29:31,043 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-17 10:29:31,053 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;@2198dbba, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-17 10:29:31,054 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-10-17 10:29:31,059 INFO L276 IsEmpty]: Start isEmpty. Operand has 18 states, 13 states have (on average 1.1538461538461537) internal successors, (15), 14 states have internal predecessors, (15), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-17 10:29:31,076 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-10-17 10:29:31,080 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 10:29:31,081 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 10:29:31,082 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting freePtrErr0ASSERT_VIOLATIONERROR_FUNCTION === [freePtrErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-10-17 10:29:31,090 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:29:31,091 INFO L85 PathProgramCache]: Analyzing trace with hash -1328156884, now seen corresponding path program 1 times [2022-10-17 10:29:31,101 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:29:31,102 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1214311098] [2022-10-17 10:29:31,103 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:29:31,104 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:29:31,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:29:31,717 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:29:31,718 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:29:31,719 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1214311098] [2022-10-17 10:29:31,719 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1214311098] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:29:31,720 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 10:29:31,720 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-10-17 10:29:31,722 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1350013533] [2022-10-17 10:29:31,723 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:29:31,727 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-17 10:29:31,728 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:29:31,763 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-17 10:29:31,764 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-10-17 10:29:31,766 INFO L87 Difference]: Start difference. First operand has 18 states, 13 states have (on average 1.1538461538461537) internal successors, (15), 14 states have internal predecessors, (15), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand has 6 states, 5 states have (on average 1.4) internal successors, (7), 5 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:29:31,918 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 10:29:31,918 INFO L93 Difference]: Finished difference Result 33 states and 37 transitions. [2022-10-17 10:29:31,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-10-17 10:29:31,922 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 1.4) internal successors, (7), 5 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2022-10-17 10:29:31,922 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 10:29:31,928 INFO L225 Difference]: With dead ends: 33 [2022-10-17 10:29:31,928 INFO L226 Difference]: Without dead ends: 15 [2022-10-17 10:29:31,934 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-10-17 10:29:31,941 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 4 mSDsluCounter, 35 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 48 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-17 10:29:31,943 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 48 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-17 10:29:31,962 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2022-10-17 10:29:31,987 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2022-10-17 10:29:31,988 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 11 states have (on average 1.0) internal successors, (11), 11 states have internal predecessors, (11), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-10-17 10:29:31,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 14 transitions. [2022-10-17 10:29:31,991 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 14 transitions. Word has length 8 [2022-10-17 10:29:31,992 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 10:29:31,992 INFO L495 AbstractCegarLoop]: Abstraction has 15 states and 14 transitions. [2022-10-17 10:29:31,993 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 1.4) internal successors, (7), 5 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:29:31,993 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 14 transitions. [2022-10-17 10:29:31,994 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-10-17 10:29:31,994 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 10:29:31,994 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 10:29:31,995 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-17 10:29:31,995 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting freePtrErr0ASSERT_VIOLATIONERROR_FUNCTION === [freePtrErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-10-17 10:29:31,996 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:29:31,996 INFO L85 PathProgramCache]: Analyzing trace with hash 1450995271, now seen corresponding path program 1 times [2022-10-17 10:29:31,997 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:29:31,997 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1598356764] [2022-10-17 10:29:31,997 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:29:31,998 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:29:32,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:29:32,044 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-10-17 10:29:32,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:29:32,103 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-10-17 10:29:32,104 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-10-17 10:29:32,106 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location freePtrErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-10-17 10:29:32,108 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-10-17 10:29:32,111 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1] [2022-10-17 10:29:32,116 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-10-17 10:29:32,143 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 17.10 10:29:32 BoogieIcfgContainer [2022-10-17 10:29:32,143 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-10-17 10:29:32,144 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-10-17 10:29:32,144 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-10-17 10:29:32,144 INFO L275 PluginConnector]: Witness Printer initialized [2022-10-17 10:29:32,144 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 10:29:30" (3/4) ... [2022-10-17 10:29:32,146 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-10-17 10:29:32,187 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8358ad81-33ec-4891-adb7-e03eab9f1f89/bin/uautomizer-J5u9QxTXDZ/witness.graphml [2022-10-17 10:29:32,187 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-10-17 10:29:32,188 INFO L158 Benchmark]: Toolchain (without parser) took 2043.52ms. Allocated memory was 88.1MB in the beginning and 107.0MB in the end (delta: 18.9MB). Free memory was 48.2MB in the beginning and 54.2MB in the end (delta: -6.0MB). Peak memory consumption was 10.9MB. Max. memory is 16.1GB. [2022-10-17 10:29:32,188 INFO L158 Benchmark]: CDTParser took 0.29ms. Allocated memory is still 88.1MB. Free memory is still 64.4MB. There was no memory consumed. Max. memory is 16.1GB. [2022-10-17 10:29:32,189 INFO L158 Benchmark]: CACSL2BoogieTranslator took 301.41ms. Allocated memory is still 88.1MB. Free memory was 47.9MB in the beginning and 62.6MB in the end (delta: -14.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-10-17 10:29:32,189 INFO L158 Benchmark]: Boogie Procedure Inliner took 42.32ms. Allocated memory is still 88.1MB. Free memory was 62.4MB in the beginning and 60.9MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-10-17 10:29:32,190 INFO L158 Benchmark]: Boogie Preprocessor took 47.50ms. Allocated memory is still 88.1MB. Free memory was 60.9MB in the beginning and 59.9MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2022-10-17 10:29:32,190 INFO L158 Benchmark]: RCFGBuilder took 393.31ms. Allocated memory is still 88.1MB. Free memory was 59.7MB in the beginning and 49.8MB in the end (delta: 9.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-10-17 10:29:32,191 INFO L158 Benchmark]: TraceAbstraction took 1205.28ms. Allocated memory was 88.1MB in the beginning and 107.0MB in the end (delta: 18.9MB). Free memory was 49.2MB in the beginning and 56.3MB in the end (delta: -7.0MB). Peak memory consumption was 13.3MB. Max. memory is 16.1GB. [2022-10-17 10:29:32,191 INFO L158 Benchmark]: Witness Printer took 43.47ms. Allocated memory is still 107.0MB. Free memory was 56.3MB in the beginning and 54.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-10-17 10:29:32,194 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29ms. Allocated memory is still 88.1MB. Free memory is still 64.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 301.41ms. Allocated memory is still 88.1MB. Free memory was 47.9MB in the beginning and 62.6MB in the end (delta: -14.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 42.32ms. Allocated memory is still 88.1MB. Free memory was 62.4MB in the beginning and 60.9MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 47.50ms. Allocated memory is still 88.1MB. Free memory was 60.9MB in the beginning and 59.9MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 393.31ms. Allocated memory is still 88.1MB. Free memory was 59.7MB in the beginning and 49.8MB in the end (delta: 9.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 1205.28ms. Allocated memory was 88.1MB in the beginning and 107.0MB in the end (delta: 18.9MB). Free memory was 49.2MB in the beginning and 56.3MB in the end (delta: -7.0MB). Peak memory consumption was 13.3MB. Max. memory is 16.1GB. * Witness Printer took 43.47ms. Allocated memory is still 107.0MB. Free memory was 56.3MB in the beginning and 54.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. 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: [L52] rr * ptr1 = 0; [L53] CALL, EXPR getPtr() [L39] CALL, EXPR getrr() [L32] rr * r = (rr *)malloc(sizeof *r); [L33] r -> state = 0 [L34] return r; VAL [\result={-1:0}, r={-1:0}] [L39] RET, EXPR getrr() [L39] rr * r = getrr(); [L40] r -> state = 1 [L41] return r; VAL [\result={-1:0}, r={-1:0}] [L53] RET, EXPR getPtr() [L53] ptr1 = getPtr() [L54] CALL freePtr(ptr1) [L46] EXPR ptr -> state VAL [ptr={-1:0}, ptr={-1:0}, ptr -> state=1] [L46] (ptr -> state == 1) ? (0) : __blast_assert () VAL [ptr={-1:0}, ptr={-1:0}, ptr -> state=1] [L47] ptr -> state = 2 VAL [ptr={-1:0}, ptr={-1:0}] [L54] RET freePtr(ptr1) VAL [ptr1={-1:0}] [L56] CALL freePtr(ptr1) [L46] EXPR ptr -> state VAL [ptr={-1:0}, ptr={-1:0}, ptr -> state=2] [L46] (ptr -> state == 1) ? (0) : __blast_assert () [L46] CALL __blast_assert () [L8] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 18 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.1s, OverallIterations: 2, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 4 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 4 mSDsluCounter, 48 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 35 mSDsCounter, 1 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 32 IncrementalHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1 mSolverCounterUnsat, 13 mSDtfsCounter, 32 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=18occurred in iteration=0, InterpolantAutomatonStates: 7, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 22 NumberOfCodeBlocks, 22 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 7 ConstructedInterpolants, 0 QuantifiedInterpolants, 27 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 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 10:29:32,241 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8358ad81-33ec-4891-adb7-e03eab9f1f89/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