./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/termination-crafted/Arrays02-EquivalentConstantIndices.c --full-output --architecture 64bit -------------------------------------------------------------------------------- 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_b4bf04eb-1f59-4d57-816b-cba92cd7dd18/bin/uautomizer-UnR33cPsHg/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4bf04eb-1f59-4d57-816b-cba92cd7dd18/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_b4bf04eb-1f59-4d57-816b-cba92cd7dd18/bin/uautomizer-UnR33cPsHg/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4bf04eb-1f59-4d57-816b-cba92cd7dd18/bin/uautomizer-UnR33cPsHg/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/termination-crafted/Arrays02-EquivalentConstantIndices.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4bf04eb-1f59-4d57-816b-cba92cd7dd18/bin/uautomizer-UnR33cPsHg/config/svcomp-DerefFreeMemtrack-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4bf04eb-1f59-4d57-816b-cba92cd7dd18/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 64bit --witnessprinter.graph.data.programhash 4006e5bbc9a234a3363872bc2e5100c7378eec16240b7c8c65c17af0dd119109 ................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-b2eff8b [2021-10-28 09:01:17,514 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-28 09:01:17,517 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-28 09:01:17,581 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-28 09:01:17,582 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-28 09:01:17,584 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-28 09:01:17,586 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-28 09:01:17,589 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-28 09:01:17,593 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-28 09:01:17,594 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-28 09:01:17,596 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-28 09:01:17,599 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-28 09:01:17,600 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-28 09:01:17,602 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-28 09:01:17,604 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-28 09:01:17,606 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-28 09:01:17,608 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-28 09:01:17,610 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-28 09:01:17,614 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-28 09:01:17,618 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-28 09:01:17,621 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-28 09:01:17,623 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-28 09:01:17,625 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-28 09:01:17,627 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-28 09:01:17,632 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-28 09:01:17,633 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-28 09:01:17,634 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-28 09:01:17,635 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-28 09:01:17,636 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-28 09:01:17,638 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-28 09:01:17,639 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-28 09:01:17,640 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-28 09:01:17,642 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-28 09:01:17,643 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-28 09:01:17,645 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-28 09:01:17,650 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-28 09:01:17,651 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-28 09:01:17,652 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-28 09:01:17,652 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-28 09:01:17,654 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-28 09:01:17,656 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-28 09:01:17,658 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4bf04eb-1f59-4d57-816b-cba92cd7dd18/bin/uautomizer-UnR33cPsHg/config/svcomp-DerefFreeMemtrack-64bit-Automizer_Default.epf [2021-10-28 09:01:17,712 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-28 09:01:17,712 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-28 09:01:17,713 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-28 09:01:17,714 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-28 09:01:17,724 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-28 09:01:17,726 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-28 09:01:17,727 INFO L138 SettingsManager]: * Use SBE=true [2021-10-28 09:01:17,727 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-28 09:01:17,728 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-28 09:01:17,728 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-28 09:01:17,729 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-28 09:01:17,730 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-10-28 09:01:17,730 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-10-28 09:01:17,730 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-10-28 09:01:17,731 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-28 09:01:17,731 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-28 09:01:17,731 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-28 09:01:17,732 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-28 09:01:17,732 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-28 09:01:17,732 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-28 09:01:17,733 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-28 09:01:17,733 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-28 09:01:17,733 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-28 09:01:17,734 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-28 09:01:17,734 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-28 09:01:17,734 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-28 09:01:17,735 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_b4bf04eb-1f59-4d57-816b-cba92cd7dd18/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4bf04eb-1f59-4d57-816b-cba92cd7dd18/bin/uautomizer-UnR33cPsHg Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4006e5bbc9a234a3363872bc2e5100c7378eec16240b7c8c65c17af0dd119109 [2021-10-28 09:01:18,113 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-28 09:01:18,143 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-28 09:01:18,146 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-28 09:01:18,147 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-28 09:01:18,149 INFO L275 PluginConnector]: CDTParser initialized [2021-10-28 09:01:18,150 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4bf04eb-1f59-4d57-816b-cba92cd7dd18/bin/uautomizer-UnR33cPsHg/../../sv-benchmarks/c/termination-crafted/Arrays02-EquivalentConstantIndices.c [2021-10-28 09:01:18,279 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4bf04eb-1f59-4d57-816b-cba92cd7dd18/bin/uautomizer-UnR33cPsHg/data/086e320a9/4df2c1d54bd74df3980c581cefc8efe1/FLAG3f5c373c0 [2021-10-28 09:01:18,822 INFO L306 CDTParser]: Found 1 translation units. [2021-10-28 09:01:18,823 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4bf04eb-1f59-4d57-816b-cba92cd7dd18/sv-benchmarks/c/termination-crafted/Arrays02-EquivalentConstantIndices.c [2021-10-28 09:01:18,839 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4bf04eb-1f59-4d57-816b-cba92cd7dd18/bin/uautomizer-UnR33cPsHg/data/086e320a9/4df2c1d54bd74df3980c581cefc8efe1/FLAG3f5c373c0 [2021-10-28 09:01:19,219 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4bf04eb-1f59-4d57-816b-cba92cd7dd18/bin/uautomizer-UnR33cPsHg/data/086e320a9/4df2c1d54bd74df3980c581cefc8efe1 [2021-10-28 09:01:19,225 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-28 09:01:19,231 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-10-28 09:01:19,232 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-28 09:01:19,233 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-28 09:01:19,239 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-28 09:01:19,241 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 09:01:19" (1/1) ... [2021-10-28 09:01:19,243 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2f053b25 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:01:19, skipping insertion in model container [2021-10-28 09:01:19,246 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 09:01:19" (1/1) ... [2021-10-28 09:01:19,256 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-28 09:01:19,274 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-28 09:01:19,439 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 09:01:19,450 INFO L203 MainTranslator]: Completed pre-run [2021-10-28 09:01:19,490 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 09:01:19,509 INFO L208 MainTranslator]: Completed translation [2021-10-28 09:01:19,510 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:01:19 WrapperNode [2021-10-28 09:01:19,510 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-28 09:01:19,511 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-28 09:01:19,512 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-28 09:01:19,512 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-28 09:01:19,530 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:01:19" (1/1) ... [2021-10-28 09:01:19,530 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:01:19" (1/1) ... [2021-10-28 09:01:19,538 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:01:19" (1/1) ... [2021-10-28 09:01:19,538 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:01:19" (1/1) ... [2021-10-28 09:01:19,546 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:01:19" (1/1) ... [2021-10-28 09:01:19,551 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:01:19" (1/1) ... [2021-10-28 09:01:19,552 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:01:19" (1/1) ... [2021-10-28 09:01:19,554 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-28 09:01:19,556 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-28 09:01:19,556 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-28 09:01:19,556 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-28 09:01:19,564 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:01:19" (1/1) ... [2021-10-28 09:01:19,576 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-28 09:01:19,593 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4bf04eb-1f59-4d57-816b-cba92cd7dd18/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:01:19,616 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4bf04eb-1f59-4d57-816b-cba92cd7dd18/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-28 09:01:19,654 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4bf04eb-1f59-4d57-816b-cba92cd7dd18/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-28 09:01:19,685 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-10-28 09:01:19,685 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-28 09:01:19,686 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-10-28 09:01:19,687 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2021-10-28 09:01:19,687 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-10-28 09:01:19,688 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-28 09:01:19,688 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-10-28 09:01:19,689 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-10-28 09:01:19,689 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-28 09:01:19,689 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-10-28 09:01:19,691 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-28 09:01:20,045 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-28 09:01:20,046 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2021-10-28 09:01:20,048 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 09:01:20 BoogieIcfgContainer [2021-10-28 09:01:20,048 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-28 09:01:20,051 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-28 09:01:20,051 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-28 09:01:20,056 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-28 09:01:20,056 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.10 09:01:19" (1/3) ... [2021-10-28 09:01:20,058 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@70eb8ccd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 09:01:20, skipping insertion in model container [2021-10-28 09:01:20,058 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:01:19" (2/3) ... [2021-10-28 09:01:20,059 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@70eb8ccd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 09:01:20, skipping insertion in model container [2021-10-28 09:01:20,059 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 09:01:20" (3/3) ... [2021-10-28 09:01:20,061 INFO L111 eAbstractionObserver]: Analyzing ICFG Arrays02-EquivalentConstantIndices.c [2021-10-28 09:01:20,068 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-28 09:01:20,068 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 11 error locations. [2021-10-28 09:01:20,134 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-28 09:01:20,154 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 09:01:20,154 INFO L340 AbstractCegarLoop]: Starting to check reachability of 11 error locations. [2021-10-28 09:01:20,174 INFO L276 IsEmpty]: Start isEmpty. Operand has 31 states, 15 states have (on average 1.8666666666666667) internal successors, (28), 26 states have internal predecessors, (28), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-10-28 09:01:20,198 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-10-28 09:01:20,198 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:01:20,199 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:01:20,200 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting mainErr0REQUIRES_VIOLATION === [mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION (and 6 more)] === [2021-10-28 09:01:20,210 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:01:20,211 INFO L85 PathProgramCache]: Analyzing trace with hash 1997870250, now seen corresponding path program 1 times [2021-10-28 09:01:20,223 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:01:20,224 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1083512869] [2021-10-28 09:01:20,224 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:01:20,225 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:01:20,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:01:20,446 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-10-28 09:01:20,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:01:20,460 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 09:01:20,461 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:01:20,462 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1083512869] [2021-10-28 09:01:20,463 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1083512869] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 09:01:20,463 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:01:20,464 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-28 09:01:20,466 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [790432738] [2021-10-28 09:01:20,473 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-28 09:01:20,474 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:01:20,492 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-28 09:01:20,493 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-28 09:01:20,496 INFO L87 Difference]: Start difference. First operand has 31 states, 15 states have (on average 1.8666666666666667) internal successors, (28), 26 states have internal predecessors, (28), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 1 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) [2021-10-28 09:01:20,614 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:01:20,615 INFO L93 Difference]: Finished difference Result 26 states and 26 transitions. [2021-10-28 09:01:20,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-28 09:01:20,618 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 1 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) Word has length 7 [2021-10-28 09:01:20,618 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:01:20,650 INFO L225 Difference]: With dead ends: 26 [2021-10-28 09:01:20,650 INFO L226 Difference]: Without dead ends: 23 [2021-10-28 09:01:20,652 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 09:01:20,674 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2021-10-28 09:01:20,691 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2021-10-28 09:01:20,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23 states, 14 states have (on average 1.4285714285714286) internal successors, (20), 19 states have internal predecessors, (20), 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) [2021-10-28 09:01:20,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 23 transitions. [2021-10-28 09:01:20,696 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 23 transitions. Word has length 7 [2021-10-28 09:01:20,696 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:01:20,697 INFO L470 AbstractCegarLoop]: Abstraction has 23 states and 23 transitions. [2021-10-28 09:01:20,697 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 1 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) [2021-10-28 09:01:20,698 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 23 transitions. [2021-10-28 09:01:20,698 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-10-28 09:01:20,698 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:01:20,699 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:01:20,699 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-28 09:01:20,700 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting mainErr1REQUIRES_VIOLATION === [mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION (and 6 more)] === [2021-10-28 09:01:20,701 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:01:20,701 INFO L85 PathProgramCache]: Analyzing trace with hash 1997870251, now seen corresponding path program 1 times [2021-10-28 09:01:20,702 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:01:20,702 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [978425913] [2021-10-28 09:01:20,702 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:01:20,703 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:01:20,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:01:20,780 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-10-28 09:01:20,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:01:20,791 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 09:01:20,792 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:01:20,792 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [978425913] [2021-10-28 09:01:20,793 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [978425913] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 09:01:20,793 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:01:20,794 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-28 09:01:20,794 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1941781100] [2021-10-28 09:01:20,796 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-28 09:01:20,796 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:01:20,798 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-28 09:01:20,798 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-28 09:01:20,799 INFO L87 Difference]: Start difference. First operand 23 states and 23 transitions. Second operand has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 1 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) [2021-10-28 09:01:20,848 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:01:20,848 INFO L93 Difference]: Finished difference Result 18 states and 18 transitions. [2021-10-28 09:01:20,849 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-28 09:01:20,849 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 1 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) Word has length 7 [2021-10-28 09:01:20,850 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:01:20,851 INFO L225 Difference]: With dead ends: 18 [2021-10-28 09:01:20,851 INFO L226 Difference]: Without dead ends: 18 [2021-10-28 09:01:20,852 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 09:01:20,853 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2021-10-28 09:01:20,855 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2021-10-28 09:01:20,856 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18 states, 14 states have (on average 1.0714285714285714) internal successors, (15), 14 states have internal predecessors, (15), 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) [2021-10-28 09:01:20,857 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 18 transitions. [2021-10-28 09:01:20,857 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 18 transitions. Word has length 7 [2021-10-28 09:01:20,858 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:01:20,858 INFO L470 AbstractCegarLoop]: Abstraction has 18 states and 18 transitions. [2021-10-28 09:01:20,859 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 1 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) [2021-10-28 09:01:20,859 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 18 transitions. [2021-10-28 09:01:20,860 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-10-28 09:01:20,860 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:01:20,860 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:01:20,861 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-28 09:01:20,861 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting mainErr10ENSURES_VIOLATIONMEMORY_LEAK === [mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION (and 6 more)] === [2021-10-28 09:01:20,862 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:01:20,862 INFO L85 PathProgramCache]: Analyzing trace with hash -270538361, now seen corresponding path program 1 times [2021-10-28 09:01:20,863 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:01:20,863 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [752746318] [2021-10-28 09:01:20,863 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:01:20,864 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:01:20,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:01:20,950 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-10-28 09:01:20,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:01:20,961 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 09:01:20,961 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:01:20,962 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [752746318] [2021-10-28 09:01:20,962 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [752746318] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 09:01:20,963 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:01:20,963 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-28 09:01:20,964 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1429243672] [2021-10-28 09:01:20,964 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-28 09:01:20,965 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:01:20,966 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-28 09:01:20,966 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-10-28 09:01:20,967 INFO L87 Difference]: Start difference. First operand 18 states and 18 transitions. Second operand has 5 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 1 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) [2021-10-28 09:01:21,015 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:01:21,015 INFO L93 Difference]: Finished difference Result 17 states and 17 transitions. [2021-10-28 09:01:21,016 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-28 09:01:21,017 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 1 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) Word has length 12 [2021-10-28 09:01:21,017 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:01:21,018 INFO L225 Difference]: With dead ends: 17 [2021-10-28 09:01:21,018 INFO L226 Difference]: Without dead ends: 0 [2021-10-28 09:01:21,019 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-10-28 09:01:21,019 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-10-28 09:01:21,019 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-10-28 09:01:21,020 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:01:21,020 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-10-28 09:01:21,020 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 12 [2021-10-28 09:01:21,021 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:01:21,021 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-28 09:01:21,021 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 1 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) [2021-10-28 09:01:21,022 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-10-28 09:01:21,022 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-10-28 09:01:21,025 INFO L764 garLoopResultBuilder]: Registering result SAFE for location mainErr0REQUIRES_VIOLATION [2021-10-28 09:01:21,026 INFO L764 garLoopResultBuilder]: Registering result SAFE for location mainErr1REQUIRES_VIOLATION [2021-10-28 09:01:21,026 INFO L764 garLoopResultBuilder]: Registering result SAFE for location mainErr2REQUIRES_VIOLATION [2021-10-28 09:01:21,027 INFO L764 garLoopResultBuilder]: Registering result SAFE for location mainErr3REQUIRES_VIOLATION [2021-10-28 09:01:21,027 INFO L764 garLoopResultBuilder]: Registering result SAFE for location mainErr4REQUIRES_VIOLATION [2021-10-28 09:01:21,028 INFO L764 garLoopResultBuilder]: Registering result SAFE for location mainErr5REQUIRES_VIOLATION [2021-10-28 09:01:21,028 INFO L764 garLoopResultBuilder]: Registering result SAFE for location mainErr6REQUIRES_VIOLATION [2021-10-28 09:01:21,028 INFO L764 garLoopResultBuilder]: Registering result SAFE for location mainErr7REQUIRES_VIOLATION [2021-10-28 09:01:21,029 INFO L764 garLoopResultBuilder]: Registering result SAFE for location mainErr8REQUIRES_VIOLATION [2021-10-28 09:01:21,029 INFO L764 garLoopResultBuilder]: Registering result SAFE for location mainErr9REQUIRES_VIOLATION [2021-10-28 09:01:21,030 INFO L764 garLoopResultBuilder]: Registering result SAFE for location mainErr10ENSURES_VIOLATIONMEMORY_LEAK [2021-10-28 09:01:21,030 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-10-28 09:01:21,035 INFO L731 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2021-10-28 09:01:21,037 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-28 09:01:21,041 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.10 09:01:21 BoogieIcfgContainer [2021-10-28 09:01:21,041 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-28 09:01:21,042 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-28 09:01:21,042 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-28 09:01:21,043 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-28 09:01:21,043 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 09:01:20" (3/4) ... [2021-10-28 09:01:21,048 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-10-28 09:01:21,057 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2021-10-28 09:01:21,058 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2021-10-28 09:01:21,063 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2021-10-28 09:01:21,064 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2021-10-28 09:01:21,064 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-28 09:01:21,064 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-28 09:01:21,108 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4bf04eb-1f59-4d57-816b-cba92cd7dd18/bin/uautomizer-UnR33cPsHg/witness.graphml [2021-10-28 09:01:21,109 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-28 09:01:21,111 INFO L168 Benchmark]: Toolchain (without parser) took 1878.89 ms. Allocated memory was 98.6 MB in the beginning and 119.5 MB in the end (delta: 21.0 MB). Free memory was 62.3 MB in the beginning and 76.4 MB in the end (delta: -14.1 MB). Peak memory consumption was 6.6 MB. Max. memory is 16.1 GB. [2021-10-28 09:01:21,112 INFO L168 Benchmark]: CDTParser took 0.37 ms. Allocated memory is still 98.6 MB. Free memory was 68.3 MB in the beginning and 68.3 MB in the end (delta: 21.2 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 09:01:21,112 INFO L168 Benchmark]: CACSL2BoogieTranslator took 278.16 ms. Allocated memory is still 98.6 MB. Free memory was 62.0 MB in the beginning and 74.5 MB in the end (delta: -12.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-28 09:01:21,113 INFO L168 Benchmark]: Boogie Preprocessor took 43.43 ms. Allocated memory is still 98.6 MB. Free memory was 74.5 MB in the beginning and 73.0 MB in the end (delta: 1.5 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 09:01:21,114 INFO L168 Benchmark]: RCFGBuilder took 492.87 ms. Allocated memory is still 98.6 MB. Free memory was 73.0 MB in the beginning and 63.2 MB in the end (delta: 9.8 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-28 09:01:21,115 INFO L168 Benchmark]: TraceAbstraction took 990.51 ms. Allocated memory was 98.6 MB in the beginning and 119.5 MB in the end (delta: 21.0 MB). Free memory was 62.8 MB in the beginning and 78.5 MB in the end (delta: -15.7 MB). Peak memory consumption was 7.3 MB. Max. memory is 16.1 GB. [2021-10-28 09:01:21,115 INFO L168 Benchmark]: Witness Printer took 66.79 ms. Allocated memory is still 119.5 MB. Free memory was 78.5 MB in the beginning and 76.4 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-28 09:01:21,118 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.37 ms. Allocated memory is still 98.6 MB. Free memory was 68.3 MB in the beginning and 68.3 MB in the end (delta: 21.2 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 278.16 ms. Allocated memory is still 98.6 MB. Free memory was 62.0 MB in the beginning and 74.5 MB in the end (delta: -12.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 43.43 ms. Allocated memory is still 98.6 MB. Free memory was 74.5 MB in the beginning and 73.0 MB in the end (delta: 1.5 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 492.87 ms. Allocated memory is still 98.6 MB. Free memory was 73.0 MB in the beginning and 63.2 MB in the end (delta: 9.8 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * TraceAbstraction took 990.51 ms. Allocated memory was 98.6 MB in the beginning and 119.5 MB in the end (delta: 21.0 MB). Free memory was 62.8 MB in the beginning and 78.5 MB in the end (delta: -15.7 MB). Peak memory consumption was 7.3 MB. Max. memory is 16.1 GB. * Witness Printer took 66.79 ms. Allocated memory is still 119.5 MB. Free memory was 78.5 MB in the beginning and 76.4 MB in the end (delta: 2.1 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 - PositiveResult [Line: 11]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 11]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 13]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 13]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 14]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 14]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 14]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 14]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 15]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 15]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 8]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 31 locations, 11 error locations. Started 1 CEGAR loops. OverallTime: 0.9s, 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: 32 SDtfs, 31 SDslu, 26 SDs, 0 SdLazy, 93 SolverSat, 14 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 14 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=31occurred in iteration=0, InterpolantAutomatonStates: 12, 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, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 26 NumberOfCodeBlocks, 26 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 23 ConstructedInterpolants, 0 QuantifiedInterpolants, 91 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 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 - AllSpecificationsHoldResult: All specifications hold 11 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2021-10-28 09:01:21,183 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4bf04eb-1f59-4d57-816b-cba92cd7dd18/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...