./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/memsafety-ext3/scopes4-2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version b2eff8ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0fd1a5-9fbe-4223-bfa6-5ed6e1cecd43/bin/uautomizer-UnR33cPsHg/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0fd1a5-9fbe-4223-bfa6-5ed6e1cecd43/bin/uautomizer-UnR33cPsHg/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0fd1a5-9fbe-4223-bfa6-5ed6e1cecd43/bin/uautomizer-UnR33cPsHg/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0fd1a5-9fbe-4223-bfa6-5ed6e1cecd43/bin/uautomizer-UnR33cPsHg/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/memsafety-ext3/scopes4-2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0fd1a5-9fbe-4223-bfa6-5ed6e1cecd43/bin/uautomizer-UnR33cPsHg/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0fd1a5-9fbe-4223-bfa6-5ed6e1cecd43/bin/uautomizer-UnR33cPsHg --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash d3e64a3bb1136adaedbe48fbb8a8a2a2e8de15e4ab22e021abc9c36f399fb6cc ............................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(valid-deref) --- Real Ultimate output --- This is Ultimate 0.2.1-dev-b2eff8b [2021-10-28 08:45:50,686 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-28 08:45:50,688 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-28 08:45:50,717 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-28 08:45:50,718 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-28 08:45:50,719 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-28 08:45:50,721 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-28 08:45:50,724 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-28 08:45:50,726 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-28 08:45:50,727 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-28 08:45:50,728 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-28 08:45:50,729 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-28 08:45:50,730 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-28 08:45:50,731 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-28 08:45:50,733 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-28 08:45:50,734 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-28 08:45:50,736 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-28 08:45:50,737 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-28 08:45:50,739 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-28 08:45:50,742 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-28 08:45:50,744 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-28 08:45:50,745 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-28 08:45:50,747 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-28 08:45:50,748 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-28 08:45:50,751 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-28 08:45:50,752 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-28 08:45:50,752 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-28 08:45:50,753 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-28 08:45:50,754 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-28 08:45:50,755 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-28 08:45:50,756 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-28 08:45:50,757 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-28 08:45:50,757 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-28 08:45:50,758 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-28 08:45:50,760 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-28 08:45:50,760 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-28 08:45:50,761 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-28 08:45:50,761 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-28 08:45:50,762 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-28 08:45:50,763 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-28 08:45:50,764 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-28 08:45:50,765 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0fd1a5-9fbe-4223-bfa6-5ed6e1cecd43/bin/uautomizer-UnR33cPsHg/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2021-10-28 08:45:50,797 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-28 08:45:50,799 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-28 08:45:50,800 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-28 08:45:50,801 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-28 08:45:50,802 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-28 08:45:50,803 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-28 08:45:50,804 INFO L138 SettingsManager]: * Use SBE=true [2021-10-28 08:45:50,804 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-28 08:45:50,804 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-28 08:45:50,804 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-28 08:45:50,806 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-28 08:45:50,806 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-28 08:45:50,806 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-28 08:45:50,806 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-10-28 08:45:50,806 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-10-28 08:45:50,807 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-10-28 08:45:50,807 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-28 08:45:50,807 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-28 08:45:50,807 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-28 08:45:50,808 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-28 08:45:50,808 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-28 08:45:50,808 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-28 08:45:50,808 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-28 08:45:50,808 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-28 08:45:50,809 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-28 08:45:50,809 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-28 08:45:50,809 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-28 08:45:50,809 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-28 08:45:50,810 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-28 08:45:50,812 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_6b0fd1a5-9fbe-4223-bfa6-5ed6e1cecd43/bin/uautomizer-UnR33cPsHg/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0fd1a5-9fbe-4223-bfa6-5ed6e1cecd43/bin/uautomizer-UnR33cPsHg Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d3e64a3bb1136adaedbe48fbb8a8a2a2e8de15e4ab22e021abc9c36f399fb6cc [2021-10-28 08:45:51,134 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-28 08:45:51,171 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-28 08:45:51,173 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-28 08:45:51,175 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-28 08:45:51,176 INFO L275 PluginConnector]: CDTParser initialized [2021-10-28 08:45:51,177 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0fd1a5-9fbe-4223-bfa6-5ed6e1cecd43/bin/uautomizer-UnR33cPsHg/../../sv-benchmarks/c/memsafety-ext3/scopes4-2.c [2021-10-28 08:45:51,266 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0fd1a5-9fbe-4223-bfa6-5ed6e1cecd43/bin/uautomizer-UnR33cPsHg/data/38d82e842/75b5f4d8ffcc489e9dd14533e694f088/FLAGbef6c0a2f [2021-10-28 08:45:51,683 INFO L306 CDTParser]: Found 1 translation units. [2021-10-28 08:45:51,683 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0fd1a5-9fbe-4223-bfa6-5ed6e1cecd43/sv-benchmarks/c/memsafety-ext3/scopes4-2.c [2021-10-28 08:45:51,691 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0fd1a5-9fbe-4223-bfa6-5ed6e1cecd43/bin/uautomizer-UnR33cPsHg/data/38d82e842/75b5f4d8ffcc489e9dd14533e694f088/FLAGbef6c0a2f [2021-10-28 08:45:52,093 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0fd1a5-9fbe-4223-bfa6-5ed6e1cecd43/bin/uautomizer-UnR33cPsHg/data/38d82e842/75b5f4d8ffcc489e9dd14533e694f088 [2021-10-28 08:45:52,096 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-28 08:45:52,097 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-10-28 08:45:52,099 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-28 08:45:52,099 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-28 08:45:52,107 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-28 08:45:52,108 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 08:45:52" (1/1) ... [2021-10-28 08:45:52,109 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@753ce6d5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:45:52, skipping insertion in model container [2021-10-28 08:45:52,110 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 08:45:52" (1/1) ... [2021-10-28 08:45:52,118 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-28 08:45:52,130 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-28 08:45:52,321 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 08:45:52,332 INFO L203 MainTranslator]: Completed pre-run [2021-10-28 08:45:52,346 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 08:45:52,360 INFO L208 MainTranslator]: Completed translation [2021-10-28 08:45:52,361 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:45:52 WrapperNode [2021-10-28 08:45:52,361 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-28 08:45:52,362 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-28 08:45:52,362 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-28 08:45:52,362 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-28 08:45:52,371 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:45:52" (1/1) ... [2021-10-28 08:45:52,371 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:45:52" (1/1) ... [2021-10-28 08:45:52,377 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:45:52" (1/1) ... [2021-10-28 08:45:52,377 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:45:52" (1/1) ... [2021-10-28 08:45:52,384 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:45:52" (1/1) ... [2021-10-28 08:45:52,385 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:45:52" (1/1) ... [2021-10-28 08:45:52,386 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:45:52" (1/1) ... [2021-10-28 08:45:52,388 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-28 08:45:52,389 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-28 08:45:52,389 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-28 08:45:52,389 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-28 08:45:52,390 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:45:52" (1/1) ... [2021-10-28 08:45:52,398 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-28 08:45:52,412 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0fd1a5-9fbe-4223-bfa6-5ed6e1cecd43/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:45:52,426 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0fd1a5-9fbe-4223-bfa6-5ed6e1cecd43/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-28 08:45:52,443 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0fd1a5-9fbe-4223-bfa6-5ed6e1cecd43/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-28 08:45:52,470 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-10-28 08:45:52,470 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-28 08:45:52,470 INFO L138 BoogieDeclarations]: Found implementation of procedure foo2 [2021-10-28 08:45:52,470 INFO L138 BoogieDeclarations]: Found implementation of procedure foo [2021-10-28 08:45:52,471 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-10-28 08:45:52,471 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2021-10-28 08:45:52,471 INFO L130 BoogieDeclarations]: Found specification of procedure foo2 [2021-10-28 08:45:52,471 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-28 08:45:52,471 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-10-28 08:45:52,471 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-28 08:45:52,472 INFO L130 BoogieDeclarations]: Found specification of procedure foo [2021-10-28 08:45:52,472 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-10-28 08:45:52,472 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-10-28 08:45:52,472 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-10-28 08:45:52,472 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-28 08:45:52,472 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-28 08:45:52,687 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-28 08:45:52,688 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-10-28 08:45:52,689 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 08:45:52 BoogieIcfgContainer [2021-10-28 08:45:52,690 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-28 08:45:52,692 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-28 08:45:52,692 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-28 08:45:52,695 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-28 08:45:52,696 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.10 08:45:52" (1/3) ... [2021-10-28 08:45:52,696 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@8ac9214 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 08:45:52, skipping insertion in model container [2021-10-28 08:45:52,697 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:45:52" (2/3) ... [2021-10-28 08:45:52,697 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@8ac9214 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 08:45:52, skipping insertion in model container [2021-10-28 08:45:52,697 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 08:45:52" (3/3) ... [2021-10-28 08:45:52,698 INFO L111 eAbstractionObserver]: Analyzing ICFG scopes4-2.c [2021-10-28 08:45:52,704 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-28 08:45:52,704 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 5 error locations. [2021-10-28 08:45:52,763 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-28 08:45:52,769 INFO L339 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=false, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, 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, mLoopAccelerationTechnique=FAST_UPR [2021-10-28 08:45:52,769 INFO L340 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2021-10-28 08:45:52,787 INFO L276 IsEmpty]: Start isEmpty. Operand has 28 states, 14 states have (on average 1.3571428571428572) internal successors, (19), 19 states have internal predecessors, (19), 4 states have call successors, (4), 4 states have call predecessors, (4), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2021-10-28 08:45:52,794 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-10-28 08:45:52,794 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 08:45:52,795 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 08:45:52,795 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting foo2Err0REQUIRES_VIOLATION === [mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK, foo2Err0REQUIRES_VIOLATION (and 1 more)] === [2021-10-28 08:45:52,800 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:45:52,801 INFO L85 PathProgramCache]: Analyzing trace with hash 1728099290, now seen corresponding path program 1 times [2021-10-28 08:45:52,828 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:45:52,829 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [236267564] [2021-10-28 08:45:52,829 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:45:52,830 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:45:52,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:45:53,011 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-10-28 08:45:53,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:45:53,028 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:45:53,029 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 08:45:53,029 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [236267564] [2021-10-28 08:45:53,030 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [236267564] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 08:45:53,030 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 08:45:53,031 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-28 08:45:53,032 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1058177555] [2021-10-28 08:45:53,036 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-28 08:45:53,037 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 08:45:53,050 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-28 08:45:53,050 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-28 08:45:53,052 INFO L87 Difference]: Start difference. First operand has 28 states, 14 states have (on average 1.3571428571428572) internal successors, (19), 19 states have internal predecessors, (19), 4 states have call successors, (4), 4 states have call predecessors, (4), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Second operand has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-10-28 08:45:53,169 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:45:53,170 INFO L93 Difference]: Finished difference Result 27 states and 26 transitions. [2021-10-28 08:45:53,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-28 08:45:53,173 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 10 [2021-10-28 08:45:53,173 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 08:45:53,180 INFO L225 Difference]: With dead ends: 27 [2021-10-28 08:45:53,180 INFO L226 Difference]: Without dead ends: 24 [2021-10-28 08:45:53,181 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-28 08:45:53,197 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2021-10-28 08:45:53,213 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 24. [2021-10-28 08:45:53,214 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24 states, 13 states have (on average 1.2307692307692308) internal successors, (16), 16 states have internal predecessors, (16), 4 states have call successors, (4), 4 states have call predecessors, (4), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-10-28 08:45:53,217 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 23 transitions. [2021-10-28 08:45:53,218 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 23 transitions. Word has length 10 [2021-10-28 08:45:53,219 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 08:45:53,219 INFO L470 AbstractCegarLoop]: Abstraction has 24 states and 23 transitions. [2021-10-28 08:45:53,220 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-10-28 08:45:53,220 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 23 transitions. [2021-10-28 08:45:53,221 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-10-28 08:45:53,221 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 08:45:53,221 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 08:45:53,222 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-28 08:45:53,222 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting foo2Err1REQUIRES_VIOLATION === [mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK, foo2Err0REQUIRES_VIOLATION (and 1 more)] === [2021-10-28 08:45:53,223 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:45:53,223 INFO L85 PathProgramCache]: Analyzing trace with hash 1728099291, now seen corresponding path program 1 times [2021-10-28 08:45:53,224 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:45:53,224 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [533342420] [2021-10-28 08:45:53,224 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:45:53,224 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:45:53,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:45:53,352 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-10-28 08:45:53,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:45:53,374 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:45:53,374 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 08:45:53,375 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [533342420] [2021-10-28 08:45:53,375 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [533342420] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 08:45:53,375 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 08:45:53,375 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-28 08:45:53,376 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [108816661] [2021-10-28 08:45:53,377 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-28 08:45:53,377 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 08:45:53,378 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-28 08:45:53,378 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-28 08:45:53,378 INFO L87 Difference]: Start difference. First operand 24 states and 23 transitions. Second operand has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-10-28 08:45:53,439 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:45:53,440 INFO L93 Difference]: Finished difference Result 23 states and 22 transitions. [2021-10-28 08:45:53,440 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-28 08:45:53,441 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 10 [2021-10-28 08:45:53,441 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 08:45:53,442 INFO L225 Difference]: With dead ends: 23 [2021-10-28 08:45:53,442 INFO L226 Difference]: Without dead ends: 23 [2021-10-28 08:45:53,442 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-28 08:45:53,443 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2021-10-28 08:45:53,445 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2021-10-28 08:45:53,446 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23 states, 13 states have (on average 1.1538461538461537) internal successors, (15), 15 states have internal predecessors, (15), 4 states have call successors, (4), 4 states have call predecessors, (4), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-10-28 08:45:53,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 22 transitions. [2021-10-28 08:45:53,447 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 22 transitions. Word has length 10 [2021-10-28 08:45:53,447 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 08:45:53,447 INFO L470 AbstractCegarLoop]: Abstraction has 23 states and 22 transitions. [2021-10-28 08:45:53,447 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-10-28 08:45:53,448 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 22 transitions. [2021-10-28 08:45:53,448 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-10-28 08:45:53,448 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 08:45:53,449 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 08:45:53,449 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-28 08:45:53,449 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting mainErr0REQUIRES_VIOLATION === [mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK, foo2Err0REQUIRES_VIOLATION (and 1 more)] === [2021-10-28 08:45:53,450 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:45:53,450 INFO L85 PathProgramCache]: Analyzing trace with hash 688977249, now seen corresponding path program 1 times [2021-10-28 08:45:53,450 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:45:53,450 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1775184881] [2021-10-28 08:45:53,451 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:45:53,451 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:45:53,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:45:53,477 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 08:45:53,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:45:53,521 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 08:45:53,525 INFO L627 BasicCegarLoop]: Counterexample is feasible [2021-10-28 08:45:53,526 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location mainErr0REQUIRES_VIOLATION [2021-10-28 08:45:53,529 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr1REQUIRES_VIOLATION [2021-10-28 08:45:53,529 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr2ENSURES_VIOLATIONMEMORY_LEAK [2021-10-28 08:45:53,534 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location foo2Err0REQUIRES_VIOLATION [2021-10-28 08:45:53,535 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location foo2Err1REQUIRES_VIOLATION [2021-10-28 08:45:53,535 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-10-28 08:45:53,537 INFO L731 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2021-10-28 08:45:53,541 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-28 08:45:53,567 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.10 08:45:53 BoogieIcfgContainer [2021-10-28 08:45:53,570 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-28 08:45:53,571 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-28 08:45:53,571 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-28 08:45:53,571 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-28 08:45:53,572 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 08:45:52" (3/4) ... [2021-10-28 08:45:53,581 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-10-28 08:45:53,644 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0fd1a5-9fbe-4223-bfa6-5ed6e1cecd43/bin/uautomizer-UnR33cPsHg/witness.graphml [2021-10-28 08:45:53,644 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-28 08:45:53,645 INFO L168 Benchmark]: Toolchain (without parser) took 1547.52 ms. Allocated memory was 104.9 MB in the beginning and 125.8 MB in the end (delta: 21.0 MB). Free memory was 65.0 MB in the beginning and 101.7 MB in the end (delta: -36.7 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 08:45:53,646 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 104.9 MB. Free memory is still 81.0 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 08:45:53,647 INFO L168 Benchmark]: CACSL2BoogieTranslator took 262.26 ms. Allocated memory is still 104.9 MB. Free memory was 64.8 MB in the beginning and 81.9 MB in the end (delta: -17.1 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2021-10-28 08:45:53,647 INFO L168 Benchmark]: Boogie Preprocessor took 26.39 ms. Allocated memory is still 104.9 MB. Free memory was 81.9 MB in the beginning and 80.7 MB in the end (delta: 1.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-28 08:45:53,648 INFO L168 Benchmark]: RCFGBuilder took 300.72 ms. Allocated memory is still 104.9 MB. Free memory was 80.7 MB in the beginning and 70.9 MB in the end (delta: 9.8 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-28 08:45:53,649 INFO L168 Benchmark]: TraceAbstraction took 878.65 ms. Allocated memory was 104.9 MB in the beginning and 125.8 MB in the end (delta: 21.0 MB). Free memory was 70.5 MB in the beginning and 103.0 MB in the end (delta: -32.5 MB). Peak memory consumption was 42.0 MB. Max. memory is 16.1 GB. [2021-10-28 08:45:53,650 INFO L168 Benchmark]: Witness Printer took 73.20 ms. Allocated memory is still 125.8 MB. Free memory was 103.0 MB in the beginning and 101.7 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-28 08:45:53,653 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 104.9 MB. Free memory is still 81.0 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 262.26 ms. Allocated memory is still 104.9 MB. Free memory was 64.8 MB in the beginning and 81.9 MB in the end (delta: -17.1 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 26.39 ms. Allocated memory is still 104.9 MB. Free memory was 81.9 MB in the beginning and 80.7 MB in the end (delta: 1.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 300.72 ms. Allocated memory is still 104.9 MB. Free memory was 80.7 MB in the beginning and 70.9 MB in the end (delta: 9.8 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * TraceAbstraction took 878.65 ms. Allocated memory was 104.9 MB in the beginning and 125.8 MB in the end (delta: 21.0 MB). Free memory was 70.5 MB in the beginning and 103.0 MB in the end (delta: -32.5 MB). Peak memory consumption was 42.0 MB. Max. memory is 16.1 GB. * Witness Printer took 73.20 ms. Allocated memory is still 125.8 MB. Free memory was 103.0 MB in the beginning and 101.7 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * 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: 18]: pointer dereference may fail pointer dereference may fail We found a FailurePath: [L17] CALL, EXPR foo() [L12] int arr[123]; [L13] CALL, EXPR foo2() [L5] int arr[1024]; VAL [arr={5:0}] [L6] arr[194] = 13 VAL [arr={5:0}] [L7] return arr + 1; [L7] return arr + 1; VAL [\result={5:4}] [L13] RET, EXPR foo2() VAL [foo2()={5:4}] [L13] return foo2(); [L17] RET, EXPR foo() VAL [foo()={5:4}] [L17] int *a = foo(); [L18] \read(*a) - UnprovableResult [Line: 18]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 16]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 6]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 6]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 28 locations, 5 error locations. Started 1 CEGAR loops. OverallTime: 0.7s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 39 SDtfs, 5 SDslu, 33 SDs, 0 SdLazy, 57 SolverSat, 6 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=28occurred in iteration=0, InterpolantAutomatonStates: 8, 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, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 38 NumberOfCodeBlocks, 38 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 18 ConstructedInterpolants, 0 QuantifiedInterpolants, 66 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 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! [2021-10-28 08:45:53,694 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0fd1a5-9fbe-4223-bfa6-5ed6e1cecd43/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...