./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-memory-alloca/openbsd_cstpncpy-alloca-2.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c565c5ae-9850-49f9-8eec-418a73fd0896/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c565c5ae-9850-49f9-8eec-418a73fd0896/bin/uautomizer-uyxdKDjOR8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c565c5ae-9850-49f9-8eec-418a73fd0896/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c565c5ae-9850-49f9-8eec-418a73fd0896/bin/uautomizer-uyxdKDjOR8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/termination-memory-alloca/openbsd_cstpncpy-alloca-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c565c5ae-9850-49f9-8eec-418a73fd0896/bin/uautomizer-uyxdKDjOR8/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c565c5ae-9850-49f9-8eec-418a73fd0896/bin/uautomizer-uyxdKDjOR8 --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash ddb0eb207fb72f46b2f9a0f11e334a77be9b4b455314fd1b26a90347e4178746 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-2329fc7 [2022-12-13 15:32:26,693 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 15:32:26,695 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 15:32:26,715 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 15:32:26,715 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 15:32:26,716 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 15:32:26,717 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 15:32:26,719 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 15:32:26,721 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 15:32:26,722 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 15:32:26,723 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 15:32:26,724 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 15:32:26,724 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 15:32:26,725 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 15:32:26,726 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 15:32:26,727 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 15:32:26,728 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 15:32:26,729 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 15:32:26,731 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 15:32:26,733 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 15:32:26,734 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 15:32:26,736 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 15:32:26,737 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 15:32:26,738 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 15:32:26,741 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 15:32:26,742 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 15:32:26,742 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 15:32:26,743 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 15:32:26,744 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 15:32:26,745 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 15:32:26,746 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 15:32:26,747 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 15:32:26,747 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 15:32:26,748 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 15:32:26,749 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 15:32:26,749 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 15:32:26,750 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 15:32:26,750 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 15:32:26,751 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 15:32:26,751 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 15:32:26,752 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 15:32:26,753 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c565c5ae-9850-49f9-8eec-418a73fd0896/bin/uautomizer-uyxdKDjOR8/config/svcomp-Overflow-64bit-Automizer_Default.epf [2022-12-13 15:32:26,774 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 15:32:26,774 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 15:32:26,775 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 15:32:26,775 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 15:32:26,775 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 15:32:26,776 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 15:32:26,776 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 15:32:26,776 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 15:32:26,777 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 15:32:26,777 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 15:32:26,777 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-13 15:32:26,777 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 15:32:26,777 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 15:32:26,778 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-13 15:32:26,778 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 15:32:26,778 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-13 15:32:26,778 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-12-13 15:32:26,778 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 15:32:26,778 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 15:32:26,779 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-13 15:32:26,779 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 15:32:26,779 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 15:32:26,779 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 15:32:26,779 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 15:32:26,780 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 15:32:26,780 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 15:32:26,780 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-13 15:32:26,780 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 15:32:26,780 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-13 15:32:26,780 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 15:32:26,781 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-13 15:32:26,781 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 15:32:26,781 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 15:32:26,781 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 15:32:26,781 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_c565c5ae-9850-49f9-8eec-418a73fd0896/bin/uautomizer-uyxdKDjOR8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c565c5ae-9850-49f9-8eec-418a73fd0896/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ddb0eb207fb72f46b2f9a0f11e334a77be9b4b455314fd1b26a90347e4178746 [2022-12-13 15:32:26,964 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 15:32:26,984 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 15:32:26,986 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 15:32:26,988 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 15:32:26,988 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 15:32:26,989 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c565c5ae-9850-49f9-8eec-418a73fd0896/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/termination-memory-alloca/openbsd_cstpncpy-alloca-2.i [2022-12-13 15:32:29,525 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 15:32:29,711 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 15:32:29,712 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c565c5ae-9850-49f9-8eec-418a73fd0896/sv-benchmarks/c/termination-memory-alloca/openbsd_cstpncpy-alloca-2.i [2022-12-13 15:32:29,721 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c565c5ae-9850-49f9-8eec-418a73fd0896/bin/uautomizer-uyxdKDjOR8/data/5ba069edd/28b9900783c54203804cd56de261fe68/FLAG5554468d1 [2022-12-13 15:32:30,102 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c565c5ae-9850-49f9-8eec-418a73fd0896/bin/uautomizer-uyxdKDjOR8/data/5ba069edd/28b9900783c54203804cd56de261fe68 [2022-12-13 15:32:30,105 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 15:32:30,106 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 15:32:30,108 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 15:32:30,108 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 15:32:30,112 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 15:32:30,113 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 03:32:30" (1/1) ... [2022-12-13 15:32:30,114 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@771216b0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:32:30, skipping insertion in model container [2022-12-13 15:32:30,114 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 03:32:30" (1/1) ... [2022-12-13 15:32:30,123 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 15:32:30,157 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 15:32:30,325 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 15:32:30,332 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 15:32:30,359 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 15:32:30,374 INFO L208 MainTranslator]: Completed translation [2022-12-13 15:32:30,375 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:32:30 WrapperNode [2022-12-13 15:32:30,375 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 15:32:30,376 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 15:32:30,376 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 15:32:30,376 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 15:32:30,381 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:32:30" (1/1) ... [2022-12-13 15:32:30,390 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:32:30" (1/1) ... [2022-12-13 15:32:30,404 INFO L138 Inliner]: procedures = 113, calls = 22, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 89 [2022-12-13 15:32:30,404 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 15:32:30,405 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 15:32:30,405 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 15:32:30,405 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 15:32:30,411 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:32:30" (1/1) ... [2022-12-13 15:32:30,411 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:32:30" (1/1) ... [2022-12-13 15:32:30,413 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:32:30" (1/1) ... [2022-12-13 15:32:30,413 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:32:30" (1/1) ... [2022-12-13 15:32:30,417 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:32:30" (1/1) ... [2022-12-13 15:32:30,420 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:32:30" (1/1) ... [2022-12-13 15:32:30,421 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:32:30" (1/1) ... [2022-12-13 15:32:30,421 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:32:30" (1/1) ... [2022-12-13 15:32:30,423 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 15:32:30,424 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 15:32:30,424 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 15:32:30,424 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 15:32:30,424 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:32:30" (1/1) ... [2022-12-13 15:32:30,429 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 15:32:30,437 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c565c5ae-9850-49f9-8eec-418a73fd0896/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 15:32:30,448 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c565c5ae-9850-49f9-8eec-418a73fd0896/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 15:32:30,450 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c565c5ae-9850-49f9-8eec-418a73fd0896/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 15:32:30,482 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-13 15:32:30,482 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-13 15:32:30,482 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-12-13 15:32:30,483 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-13 15:32:30,483 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-12-13 15:32:30,483 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-13 15:32:30,483 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 15:32:30,483 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 15:32:30,571 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 15:32:30,573 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 15:32:30,723 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 15:32:30,728 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 15:32:30,728 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-12-13 15:32:30,730 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 03:32:30 BoogieIcfgContainer [2022-12-13 15:32:30,730 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 15:32:30,732 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 15:32:30,732 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 15:32:30,735 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 15:32:30,735 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 03:32:30" (1/3) ... [2022-12-13 15:32:30,735 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c8036ef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 03:32:30, skipping insertion in model container [2022-12-13 15:32:30,736 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:32:30" (2/3) ... [2022-12-13 15:32:30,736 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c8036ef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 03:32:30, skipping insertion in model container [2022-12-13 15:32:30,736 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 03:32:30" (3/3) ... [2022-12-13 15:32:30,737 INFO L112 eAbstractionObserver]: Analyzing ICFG openbsd_cstpncpy-alloca-2.i [2022-12-13 15:32:30,753 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 15:32:30,754 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-12-13 15:32:30,790 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 15:32:30,794 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@55eedb5c, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 15:32:30,795 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-12-13 15:32:30,798 INFO L276 IsEmpty]: Start isEmpty. Operand has 21 states, 18 states have (on average 1.5555555555555556) internal successors, (28), 20 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:32:30,802 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-12-13 15:32:30,802 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 15:32:30,802 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-12-13 15:32:30,803 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-12-13 15:32:30,806 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 15:32:30,807 INFO L85 PathProgramCache]: Analyzing trace with hash 889510730, now seen corresponding path program 1 times [2022-12-13 15:32:30,814 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 15:32:30,814 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1764256174] [2022-12-13 15:32:30,814 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:32:30,814 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 15:32:30,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:32:30,965 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 15:32:30,966 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 15:32:30,966 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1764256174] [2022-12-13 15:32:30,967 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1764256174] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 15:32:30,967 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 15:32:30,967 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 15:32:30,969 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [686227022] [2022-12-13 15:32:30,969 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 15:32:30,973 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 15:32:30,973 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 15:32:30,998 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 15:32:30,999 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 15:32:31,001 INFO L87 Difference]: Start difference. First operand has 21 states, 18 states have (on average 1.5555555555555556) internal successors, (28), 20 states have internal predecessors, (28), 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) Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:32:31,029 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 15:32:31,029 INFO L93 Difference]: Finished difference Result 26 states and 32 transitions. [2022-12-13 15:32:31,031 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 15:32:31,032 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 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) Word has length 6 [2022-12-13 15:32:31,033 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 15:32:31,040 INFO L225 Difference]: With dead ends: 26 [2022-12-13 15:32:31,040 INFO L226 Difference]: Without dead ends: 8 [2022-12-13 15:32:31,043 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 15:32:31,046 INFO L413 NwaCegarLoop]: 21 mSDtfsCounter, 19 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 22 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 15:32:31,047 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 22 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 15:32:31,062 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states. [2022-12-13 15:32:31,070 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 8. [2022-12-13 15:32:31,071 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8 states, 7 states have (on average 1.2857142857142858) internal successors, (9), 7 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:32:31,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 9 transitions. [2022-12-13 15:32:31,072 INFO L78 Accepts]: Start accepts. Automaton has 8 states and 9 transitions. Word has length 6 [2022-12-13 15:32:31,072 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 15:32:31,072 INFO L495 AbstractCegarLoop]: Abstraction has 8 states and 9 transitions. [2022-12-13 15:32:31,073 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:32:31,073 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 9 transitions. [2022-12-13 15:32:31,073 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-12-13 15:32:31,073 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 15:32:31,073 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-12-13 15:32:31,074 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-13 15:32:31,074 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-12-13 15:32:31,075 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 15:32:31,075 INFO L85 PathProgramCache]: Analyzing trace with hash 1805028903, now seen corresponding path program 1 times [2022-12-13 15:32:31,075 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 15:32:31,075 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1830249069] [2022-12-13 15:32:31,076 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:32:31,076 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 15:32:31,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:32:31,143 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 15:32:31,144 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 15:32:31,144 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1830249069] [2022-12-13 15:32:31,144 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1830249069] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 15:32:31,144 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 15:32:31,144 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 15:32:31,145 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1287899691] [2022-12-13 15:32:31,145 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 15:32:31,146 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 15:32:31,146 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 15:32:31,147 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 15:32:31,147 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 15:32:31,147 INFO L87 Difference]: Start difference. First operand 8 states and 9 transitions. Second operand has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:32:31,159 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 15:32:31,160 INFO L93 Difference]: Finished difference Result 13 states and 14 transitions. [2022-12-13 15:32:31,160 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 15:32:31,160 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 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) Word has length 7 [2022-12-13 15:32:31,160 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 15:32:31,161 INFO L225 Difference]: With dead ends: 13 [2022-12-13 15:32:31,161 INFO L226 Difference]: Without dead ends: 8 [2022-12-13 15:32:31,161 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 15:32:31,163 INFO L413 NwaCegarLoop]: 7 mSDtfsCounter, 1 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 10 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 15:32:31,163 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 10 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 15:32:31,164 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states. [2022-12-13 15:32:31,165 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 8. [2022-12-13 15:32:31,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8 states, 7 states have (on average 1.1428571428571428) internal successors, (8), 7 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:32:31,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 8 transitions. [2022-12-13 15:32:31,166 INFO L78 Accepts]: Start accepts. Automaton has 8 states and 8 transitions. Word has length 7 [2022-12-13 15:32:31,166 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 15:32:31,166 INFO L495 AbstractCegarLoop]: Abstraction has 8 states and 8 transitions. [2022-12-13 15:32:31,166 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:32:31,166 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 8 transitions. [2022-12-13 15:32:31,167 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-12-13 15:32:31,167 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 15:32:31,167 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-12-13 15:32:31,167 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-13 15:32:31,168 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-12-13 15:32:31,168 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 15:32:31,168 INFO L85 PathProgramCache]: Analyzing trace with hash 1806875945, now seen corresponding path program 1 times [2022-12-13 15:32:31,169 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 15:32:31,169 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1776422455] [2022-12-13 15:32:31,169 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:32:31,169 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 15:32:31,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:32:31,226 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 15:32:31,226 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 15:32:31,226 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1776422455] [2022-12-13 15:32:31,226 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1776422455] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 15:32:31,226 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 15:32:31,227 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 15:32:31,227 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2038893044] [2022-12-13 15:32:31,227 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 15:32:31,227 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 15:32:31,227 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 15:32:31,228 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 15:32:31,228 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 15:32:31,228 INFO L87 Difference]: Start difference. First operand 8 states and 8 transitions. Second operand has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:32:31,235 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 15:32:31,235 INFO L93 Difference]: Finished difference Result 8 states and 8 transitions. [2022-12-13 15:32:31,235 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 15:32:31,235 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 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) Word has length 7 [2022-12-13 15:32:31,236 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 15:32:31,236 INFO L225 Difference]: With dead ends: 8 [2022-12-13 15:32:31,236 INFO L226 Difference]: Without dead ends: 0 [2022-12-13 15:32:31,236 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 15:32:31,237 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 1 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 5 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 15:32:31,238 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 5 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 15:32:31,239 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-12-13 15:32:31,239 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-12-13 15:32:31,239 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) [2022-12-13 15:32:31,239 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-12-13 15:32:31,240 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 7 [2022-12-13 15:32:31,240 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 15:32:31,240 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-12-13 15:32:31,240 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:32:31,240 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-12-13 15:32:31,241 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-12-13 15:32:31,243 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2022-12-13 15:32:31,243 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2022-12-13 15:32:31,243 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-13 15:32:31,245 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-12-13 15:32:31,255 INFO L899 garLoopResultBuilder]: For program point L576(line 576) no Hoare annotation was computed. [2022-12-13 15:32:31,256 INFO L899 garLoopResultBuilder]: For program point L576-1(line 576) no Hoare annotation was computed. [2022-12-13 15:32:31,256 INFO L899 garLoopResultBuilder]: For program point L568(lines 568 570) no Hoare annotation was computed. [2022-12-13 15:32:31,256 INFO L899 garLoopResultBuilder]: For program point L568-2(lines 565 579) no Hoare annotation was computed. [2022-12-13 15:32:31,256 INFO L895 garLoopResultBuilder]: At program point main_returnLabel#1(lines 565 579) the Hoare annotation is: (<= 1 |ULTIMATE.start_main_~length~0#1|) [2022-12-13 15:32:31,256 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2022-12-13 15:32:31,256 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 576) no Hoare annotation was computed. [2022-12-13 15:32:31,257 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2022-12-13 15:32:31,257 INFO L899 garLoopResultBuilder]: For program point L557-1(lines 557 558) no Hoare annotation was computed. [2022-12-13 15:32:31,257 INFO L895 garLoopResultBuilder]: At program point L557-3(lines 557 558) the Hoare annotation is: (<= 1 |ULTIMATE.start_main_~length~0#1|) [2022-12-13 15:32:31,257 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 576) no Hoare annotation was computed. [2022-12-13 15:32:31,257 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-12-13 15:32:31,257 INFO L895 garLoopResultBuilder]: At program point cstpncpy_returnLabel#1(lines 547 564) the Hoare annotation is: (<= 1 |ULTIMATE.start_main_~length~0#1|) [2022-12-13 15:32:31,258 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2022-12-13 15:32:31,258 INFO L899 garLoopResultBuilder]: For program point L554-1(lines 554 561) no Hoare annotation was computed. [2022-12-13 15:32:31,258 INFO L899 garLoopResultBuilder]: For program point L554-2(lines 554 561) no Hoare annotation was computed. [2022-12-13 15:32:31,258 INFO L899 garLoopResultBuilder]: For program point L550(lines 550 562) no Hoare annotation was computed. [2022-12-13 15:32:31,258 INFO L895 garLoopResultBuilder]: At program point L554-4(lines 554 561) the Hoare annotation is: (<= 1 |ULTIMATE.start_main_~length~0#1|) [2022-12-13 15:32:31,258 INFO L899 garLoopResultBuilder]: For program point L550-1(lines 550 562) no Hoare annotation was computed. [2022-12-13 15:32:31,258 INFO L899 garLoopResultBuilder]: For program point L571-1(lines 571 573) no Hoare annotation was computed. [2022-12-13 15:32:31,258 INFO L899 garLoopResultBuilder]: For program point L555(lines 555 560) no Hoare annotation was computed. [2022-12-13 15:32:31,261 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2022-12-13 15:32:31,263 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-13 15:32:31,275 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.12 03:32:31 BoogieIcfgContainer [2022-12-13 15:32:31,275 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-13 15:32:31,276 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-13 15:32:31,276 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-13 15:32:31,276 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-13 15:32:31,276 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 03:32:30" (3/4) ... [2022-12-13 15:32:31,279 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-12-13 15:32:31,286 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2022-12-13 15:32:31,286 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2022-12-13 15:32:31,286 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-12-13 15:32:31,286 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-12-13 15:32:31,309 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c565c5ae-9850-49f9-8eec-418a73fd0896/bin/uautomizer-uyxdKDjOR8/witness.graphml [2022-12-13 15:32:31,309 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-13 15:32:31,310 INFO L158 Benchmark]: Toolchain (without parser) took 1203.70ms. Allocated memory was 127.9MB in the beginning and 157.3MB in the end (delta: 29.4MB). Free memory was 93.4MB in the beginning and 97.8MB in the end (delta: -4.4MB). Peak memory consumption was 26.8MB. Max. memory is 16.1GB. [2022-12-13 15:32:31,310 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 127.9MB. Free memory is still 70.6MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 15:32:31,310 INFO L158 Benchmark]: CACSL2BoogieTranslator took 267.42ms. Allocated memory is still 127.9MB. Free memory was 93.4MB in the beginning and 77.3MB in the end (delta: 16.1MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-12-13 15:32:31,311 INFO L158 Benchmark]: Boogie Procedure Inliner took 28.58ms. Allocated memory is still 127.9MB. Free memory was 77.3MB in the beginning and 75.3MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 15:32:31,311 INFO L158 Benchmark]: Boogie Preprocessor took 18.47ms. Allocated memory is still 127.9MB. Free memory was 75.3MB in the beginning and 73.7MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 15:32:31,311 INFO L158 Benchmark]: RCFGBuilder took 306.56ms. Allocated memory is still 127.9MB. Free memory was 73.7MB in the beginning and 60.3MB in the end (delta: 13.4MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-12-13 15:32:31,311 INFO L158 Benchmark]: TraceAbstraction took 543.20ms. Allocated memory was 127.9MB in the beginning and 157.3MB in the end (delta: 29.4MB). Free memory was 59.9MB in the beginning and 100.6MB in the end (delta: -40.7MB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 15:32:31,311 INFO L158 Benchmark]: Witness Printer took 33.83ms. Allocated memory is still 157.3MB. Free memory was 100.6MB in the beginning and 97.8MB in the end (delta: 2.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-12-13 15:32:31,313 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19ms. Allocated memory is still 127.9MB. Free memory is still 70.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 267.42ms. Allocated memory is still 127.9MB. Free memory was 93.4MB in the beginning and 77.3MB in the end (delta: 16.1MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 28.58ms. Allocated memory is still 127.9MB. Free memory was 77.3MB in the beginning and 75.3MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 18.47ms. Allocated memory is still 127.9MB. Free memory was 75.3MB in the beginning and 73.7MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 306.56ms. Allocated memory is still 127.9MB. Free memory was 73.7MB in the beginning and 60.3MB in the end (delta: 13.4MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 543.20ms. Allocated memory was 127.9MB in the beginning and 157.3MB in the end (delta: 29.4MB). Free memory was 59.9MB in the beginning and 100.6MB in the end (delta: -40.7MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 33.83ms. Allocated memory is still 157.3MB. Free memory was 100.6MB in the beginning and 97.8MB in the end (delta: 2.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 576]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 576]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 21 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.5s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 21 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 21 mSDsluCounter, 37 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 5 mSDsCounter, 1 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 15 IncrementalHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1 mSolverCounterUnsat, 32 mSDtfsCounter, 15 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=21occurred in iteration=0, InterpolantAutomatonStates: 9, 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: 0.0s HoareAnnotationTime, 4 LocationsWithAnnotation, 4 PreInvPairs, 6 NumberOfFragments, 12 HoareAnnotationTreeSize, 4 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 4 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 20 NumberOfCodeBlocks, 20 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 17 ConstructedInterpolants, 0 QuantifiedInterpolants, 41 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 2 specifications checked. All of them hold - InvariantResult [Line: 547]: Loop Invariant Derived loop invariant: 1 <= length - InvariantResult [Line: 565]: Loop Invariant Derived loop invariant: 1 <= length - InvariantResult [Line: 557]: Loop Invariant Derived loop invariant: 1 <= length - InvariantResult [Line: 554]: Loop Invariant Derived loop invariant: 1 <= length RESULT: Ultimate proved your program to be correct! [2022-12-13 15:32:31,325 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c565c5ae-9850-49f9-8eec-418a73fd0896/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE