./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-memory-linkedlists/ll_search_not_found-alloca.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 4e7fbc69 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b58868ba-8e50-457b-9a20-0af168c342b6/bin/uautomizer-QkZJyEgLgS/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b58868ba-8e50-457b-9a20-0af168c342b6/bin/uautomizer-QkZJyEgLgS/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b58868ba-8e50-457b-9a20-0af168c342b6/bin/uautomizer-QkZJyEgLgS/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b58868ba-8e50-457b-9a20-0af168c342b6/bin/uautomizer-QkZJyEgLgS/config/AutomizerReach.xml -i ../../sv-benchmarks/c/termination-memory-linkedlists/ll_search_not_found-alloca.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b58868ba-8e50-457b-9a20-0af168c342b6/bin/uautomizer-QkZJyEgLgS/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b58868ba-8e50-457b-9a20-0af168c342b6/bin/uautomizer-QkZJyEgLgS --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 0c385b5b6938ff41cf175461b645aab6ab3ea0ee576af757e08e06ee4b5e09c7 --- 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-4e7fbc6 [2022-11-23 03:26:54,611 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-23 03:26:54,613 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-23 03:26:54,645 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-23 03:26:54,645 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-23 03:26:54,650 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-23 03:26:54,655 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-23 03:26:54,658 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-23 03:26:54,661 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-23 03:26:54,663 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-23 03:26:54,664 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-23 03:26:54,665 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-23 03:26:54,666 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-23 03:26:54,669 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-23 03:26:54,670 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-23 03:26:54,671 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-23 03:26:54,672 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-23 03:26:54,673 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-23 03:26:54,674 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-23 03:26:54,676 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-23 03:26:54,677 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-23 03:26:54,679 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-23 03:26:54,680 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-23 03:26:54,681 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-23 03:26:54,684 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-23 03:26:54,685 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-23 03:26:54,685 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-23 03:26:54,686 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-23 03:26:54,686 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-23 03:26:54,687 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-23 03:26:54,687 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-23 03:26:54,688 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-23 03:26:54,689 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-23 03:26:54,690 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-23 03:26:54,691 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-23 03:26:54,691 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-23 03:26:54,692 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-23 03:26:54,692 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-23 03:26:54,692 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-23 03:26:54,693 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-23 03:26:54,694 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-23 03:26:54,695 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b58868ba-8e50-457b-9a20-0af168c342b6/bin/uautomizer-QkZJyEgLgS/config/svcomp-Overflow-64bit-Automizer_Default.epf [2022-11-23 03:26:54,719 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-23 03:26:54,719 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-23 03:26:54,719 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-23 03:26:54,720 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-23 03:26:54,720 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-23 03:26:54,721 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-23 03:26:54,721 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-23 03:26:54,722 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-23 03:26:54,722 INFO L138 SettingsManager]: * Use SBE=true [2022-11-23 03:26:54,722 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-23 03:26:54,722 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-23 03:26:54,722 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-23 03:26:54,723 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-23 03:26:54,723 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-23 03:26:54,723 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-23 03:26:54,723 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-23 03:26:54,723 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-23 03:26:54,724 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-23 03:26:54,724 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-23 03:26:54,724 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-23 03:26:54,724 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-23 03:26:54,724 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-23 03:26:54,725 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-23 03:26:54,725 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 03:26:54,725 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-23 03:26:54,725 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-23 03:26:54,726 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-23 03:26:54,726 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-23 03:26:54,726 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-23 03:26:54,726 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-23 03:26:54,726 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-23 03:26:54,727 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-11-23 03:26:54,727 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-23 03:26:54,727 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_b58868ba-8e50-457b-9a20-0af168c342b6/bin/uautomizer-QkZJyEgLgS/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b58868ba-8e50-457b-9a20-0af168c342b6/bin/uautomizer-QkZJyEgLgS Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0c385b5b6938ff41cf175461b645aab6ab3ea0ee576af757e08e06ee4b5e09c7 [2022-11-23 03:26:54,982 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-23 03:26:55,008 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-23 03:26:55,011 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-23 03:26:55,012 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-23 03:26:55,013 INFO L275 PluginConnector]: CDTParser initialized [2022-11-23 03:26:55,014 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b58868ba-8e50-457b-9a20-0af168c342b6/bin/uautomizer-QkZJyEgLgS/../../sv-benchmarks/c/termination-memory-linkedlists/ll_search_not_found-alloca.i [2022-11-23 03:26:58,087 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-23 03:26:58,322 INFO L351 CDTParser]: Found 1 translation units. [2022-11-23 03:26:58,323 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b58868ba-8e50-457b-9a20-0af168c342b6/sv-benchmarks/c/termination-memory-linkedlists/ll_search_not_found-alloca.i [2022-11-23 03:26:58,333 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b58868ba-8e50-457b-9a20-0af168c342b6/bin/uautomizer-QkZJyEgLgS/data/5132ea5de/7c22b909b9ee4974a0226f823896b6e6/FLAG53c53c608 [2022-11-23 03:26:58,347 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b58868ba-8e50-457b-9a20-0af168c342b6/bin/uautomizer-QkZJyEgLgS/data/5132ea5de/7c22b909b9ee4974a0226f823896b6e6 [2022-11-23 03:26:58,350 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-23 03:26:58,351 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-23 03:26:58,353 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-23 03:26:58,353 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-23 03:26:58,357 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-23 03:26:58,358 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:26:58" (1/1) ... [2022-11-23 03:26:58,359 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@65885af0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:26:58, skipping insertion in model container [2022-11-23 03:26:58,359 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:26:58" (1/1) ... [2022-11-23 03:26:58,367 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-23 03:26:58,399 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-23 03:26:58,673 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 03:26:58,686 INFO L203 MainTranslator]: Completed pre-run [2022-11-23 03:26:58,757 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 03:26:58,786 INFO L208 MainTranslator]: Completed translation [2022-11-23 03:26:58,787 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:26:58 WrapperNode [2022-11-23 03:26:58,787 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-23 03:26:58,788 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-23 03:26:58,788 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-23 03:26:58,788 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-23 03:26:58,796 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:26:58" (1/1) ... [2022-11-23 03:26:58,809 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:26:58" (1/1) ... [2022-11-23 03:26:58,834 INFO L138 Inliner]: procedures = 114, calls = 9, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 55 [2022-11-23 03:26:58,835 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-23 03:26:58,836 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-23 03:26:58,836 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-23 03:26:58,836 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-23 03:26:58,845 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:26:58" (1/1) ... [2022-11-23 03:26:58,845 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:26:58" (1/1) ... [2022-11-23 03:26:58,867 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:26:58" (1/1) ... [2022-11-23 03:26:58,868 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:26:58" (1/1) ... [2022-11-23 03:26:58,872 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:26:58" (1/1) ... [2022-11-23 03:26:58,876 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:26:58" (1/1) ... [2022-11-23 03:26:58,877 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:26:58" (1/1) ... [2022-11-23 03:26:58,878 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:26:58" (1/1) ... [2022-11-23 03:26:58,880 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-23 03:26:58,881 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-23 03:26:58,882 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-23 03:26:58,882 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-23 03:26:58,883 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:26:58" (1/1) ... [2022-11-23 03:26:58,889 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 03:26:58,901 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b58868ba-8e50-457b-9a20-0af168c342b6/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 03:26:58,914 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b58868ba-8e50-457b-9a20-0af168c342b6/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-23 03:26:58,945 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b58868ba-8e50-457b-9a20-0af168c342b6/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-23 03:26:58,965 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-23 03:26:58,965 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-23 03:26:58,966 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-23 03:26:58,966 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-23 03:26:58,966 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-23 03:26:58,966 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-23 03:26:58,966 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-23 03:26:59,055 INFO L235 CfgBuilder]: Building ICFG [2022-11-23 03:26:59,057 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-23 03:26:59,235 INFO L276 CfgBuilder]: Performing block encoding [2022-11-23 03:26:59,242 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-23 03:26:59,242 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-11-23 03:26:59,252 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:26:59 BoogieIcfgContainer [2022-11-23 03:26:59,252 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-23 03:26:59,254 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-23 03:26:59,255 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-23 03:26:59,261 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-23 03:26:59,261 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 03:26:58" (1/3) ... [2022-11-23 03:26:59,262 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@11a6bda6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 03:26:59, skipping insertion in model container [2022-11-23 03:26:59,262 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:26:58" (2/3) ... [2022-11-23 03:26:59,267 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@11a6bda6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 03:26:59, skipping insertion in model container [2022-11-23 03:26:59,267 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:26:59" (3/3) ... [2022-11-23 03:26:59,269 INFO L112 eAbstractionObserver]: Analyzing ICFG ll_search_not_found-alloca.i [2022-11-23 03:26:59,288 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-23 03:26:59,288 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-11-23 03:26:59,341 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-23 03:26:59,346 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;@3fa18f25, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-23 03:26:59,347 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-11-23 03:26:59,350 INFO L276 IsEmpty]: Start isEmpty. Operand has 17 states, 14 states have (on average 1.5) internal successors, (21), 16 states have internal predecessors, (21), 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) [2022-11-23 03:26:59,355 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-23 03:26:59,356 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 03:26:59,356 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-11-23 03:26:59,357 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-11-23 03:26:59,361 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:26:59,361 INFO L85 PathProgramCache]: Analyzing trace with hash 28698728, now seen corresponding path program 1 times [2022-11-23 03:26:59,370 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:26:59,370 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [843338540] [2022-11-23 03:26:59,370 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:26:59,371 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:26:59,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:26:59,694 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:26:59,694 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:26:59,695 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [843338540] [2022-11-23 03:26:59,695 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [843338540] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 03:26:59,696 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 03:26:59,696 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 03:26:59,698 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1256421732] [2022-11-23 03:26:59,698 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 03:26:59,702 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-23 03:26:59,703 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:26:59,729 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-23 03:26:59,730 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-23 03:26:59,743 INFO L87 Difference]: Start difference. First operand has 17 states, 14 states have (on average 1.5) internal successors, (21), 16 states have internal predecessors, (21), 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 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 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) [2022-11-23 03:26:59,841 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 03:26:59,841 INFO L93 Difference]: Finished difference Result 41 states and 51 transitions. [2022-11-23 03:26:59,842 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-23 03:26:59,844 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 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 5 [2022-11-23 03:26:59,844 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 03:26:59,851 INFO L225 Difference]: With dead ends: 41 [2022-11-23 03:26:59,852 INFO L226 Difference]: Without dead ends: 12 [2022-11-23 03:26:59,855 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-23 03:26:59,864 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 14 mSDsluCounter, 25 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 39 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-23 03:26:59,865 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 39 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-23 03:26:59,883 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2022-11-23 03:26:59,894 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2022-11-23 03:26:59,896 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12 states, 10 states have (on average 1.2) internal successors, (12), 11 states have internal predecessors, (12), 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) [2022-11-23 03:26:59,897 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 12 transitions. [2022-11-23 03:26:59,898 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 12 transitions. Word has length 5 [2022-11-23 03:26:59,898 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 03:26:59,899 INFO L495 AbstractCegarLoop]: Abstraction has 12 states and 12 transitions. [2022-11-23 03:26:59,900 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 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) [2022-11-23 03:26:59,901 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 12 transitions. [2022-11-23 03:26:59,901 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-11-23 03:26:59,901 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 03:26:59,901 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1] [2022-11-23 03:26:59,902 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-23 03:26:59,902 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-11-23 03:26:59,903 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:26:59,903 INFO L85 PathProgramCache]: Analyzing trace with hash -363792156, now seen corresponding path program 1 times [2022-11-23 03:26:59,903 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:26:59,903 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [169131696] [2022-11-23 03:26:59,903 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:26:59,904 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:26:59,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:27:00,097 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:27:00,097 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:27:00,097 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [169131696] [2022-11-23 03:27:00,098 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [169131696] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 03:27:00,098 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [252301780] [2022-11-23 03:27:00,098 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:27:00,099 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 03:27:00,099 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b58868ba-8e50-457b-9a20-0af168c342b6/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 03:27:00,103 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b58868ba-8e50-457b-9a20-0af168c342b6/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 03:27:00,137 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b58868ba-8e50-457b-9a20-0af168c342b6/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-23 03:27:00,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:27:00,253 INFO L263 TraceCheckSpWp]: Trace formula consists of 108 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-23 03:27:00,258 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 03:27:00,354 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:27:00,354 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 03:27:00,355 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [252301780] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 03:27:00,360 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-23 03:27:00,360 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2022-11-23 03:27:00,361 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1495180316] [2022-11-23 03:27:00,362 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 03:27:00,362 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-23 03:27:00,363 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:27:00,363 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-23 03:27:00,363 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-11-23 03:27:00,364 INFO L87 Difference]: Start difference. First operand 12 states and 12 transitions. Second operand has 6 states, 5 states have (on average 1.8) internal successors, (9), 6 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) [2022-11-23 03:27:00,432 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 03:27:00,432 INFO L93 Difference]: Finished difference Result 12 states and 12 transitions. [2022-11-23 03:27:00,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-23 03:27:00,434 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 1.8) internal successors, (9), 6 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) Word has length 9 [2022-11-23 03:27:00,434 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 03:27:00,435 INFO L225 Difference]: With dead ends: 12 [2022-11-23 03:27:00,435 INFO L226 Difference]: Without dead ends: 11 [2022-11-23 03:27:00,437 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-11-23 03:27:00,444 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 9 mSDsluCounter, 2 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 4 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-23 03:27:00,445 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 4 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-23 03:27:00,445 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2022-11-23 03:27:00,447 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 11. [2022-11-23 03:27:00,447 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11 states, 10 states have (on average 1.1) internal successors, (11), 10 states have internal predecessors, (11), 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) [2022-11-23 03:27:00,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 11 transitions. [2022-11-23 03:27:00,448 INFO L78 Accepts]: Start accepts. Automaton has 11 states and 11 transitions. Word has length 9 [2022-11-23 03:27:00,448 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 03:27:00,448 INFO L495 AbstractCegarLoop]: Abstraction has 11 states and 11 transitions. [2022-11-23 03:27:00,448 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 1.8) internal successors, (9), 6 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) [2022-11-23 03:27:00,449 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 11 transitions. [2022-11-23 03:27:00,449 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-11-23 03:27:00,449 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 03:27:00,449 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1] [2022-11-23 03:27:00,465 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b58868ba-8e50-457b-9a20-0af168c342b6/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-23 03:27:00,656 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b58868ba-8e50-457b-9a20-0af168c342b6/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 03:27:00,657 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-11-23 03:27:00,659 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:27:00,659 INFO L85 PathProgramCache]: Analyzing trace with hash 1607345098, now seen corresponding path program 1 times [2022-11-23 03:27:00,660 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:27:00,660 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1422886643] [2022-11-23 03:27:00,661 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:27:00,661 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:27:00,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:27:00,779 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:27:00,779 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:27:00,780 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1422886643] [2022-11-23 03:27:00,780 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1422886643] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 03:27:00,780 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1065978880] [2022-11-23 03:27:00,780 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:27:00,780 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 03:27:00,781 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b58868ba-8e50-457b-9a20-0af168c342b6/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 03:27:00,782 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b58868ba-8e50-457b-9a20-0af168c342b6/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 03:27:00,803 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b58868ba-8e50-457b-9a20-0af168c342b6/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-23 03:27:00,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:27:00,887 INFO L263 TraceCheckSpWp]: Trace formula consists of 109 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-23 03:27:00,889 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 03:27:00,940 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:27:00,940 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 03:27:01,001 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:27:01,001 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1065978880] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 03:27:01,001 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-23 03:27:01,001 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2022-11-23 03:27:01,002 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [228558050] [2022-11-23 03:27:01,002 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-23 03:27:01,002 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-23 03:27:01,002 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:27:01,003 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-23 03:27:01,005 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2022-11-23 03:27:01,005 INFO L87 Difference]: Start difference. First operand 11 states and 11 transitions. Second operand has 12 states, 11 states have (on average 2.1818181818181817) internal successors, (24), 12 states have internal predecessors, (24), 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) [2022-11-23 03:27:01,112 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 03:27:01,113 INFO L93 Difference]: Finished difference Result 24 states and 26 transitions. [2022-11-23 03:27:01,113 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-23 03:27:01,113 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.1818181818181817) internal successors, (24), 12 states have internal predecessors, (24), 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 10 [2022-11-23 03:27:01,114 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 03:27:01,116 INFO L225 Difference]: With dead ends: 24 [2022-11-23 03:27:01,116 INFO L226 Difference]: Without dead ends: 23 [2022-11-23 03:27:01,117 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=77, Invalid=163, Unknown=0, NotChecked=0, Total=240 [2022-11-23 03:27:01,120 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 12 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 9 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-23 03:27:01,122 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 9 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-23 03:27:01,124 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2022-11-23 03:27:01,131 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2022-11-23 03:27:01,132 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23 states, 22 states have (on average 1.0454545454545454) internal successors, (23), 22 states have internal predecessors, (23), 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) [2022-11-23 03:27:01,133 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 23 transitions. [2022-11-23 03:27:01,133 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 23 transitions. Word has length 10 [2022-11-23 03:27:01,133 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 03:27:01,133 INFO L495 AbstractCegarLoop]: Abstraction has 23 states and 23 transitions. [2022-11-23 03:27:01,134 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 2.1818181818181817) internal successors, (24), 12 states have internal predecessors, (24), 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) [2022-11-23 03:27:01,134 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 23 transitions. [2022-11-23 03:27:01,135 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-11-23 03:27:01,135 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 03:27:01,136 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 4, 1, 1, 1] [2022-11-23 03:27:01,148 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b58868ba-8e50-457b-9a20-0af168c342b6/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-23 03:27:01,342 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b58868ba-8e50-457b-9a20-0af168c342b6/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2022-11-23 03:27:01,342 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-11-23 03:27:01,343 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:27:01,343 INFO L85 PathProgramCache]: Analyzing trace with hash -1326689066, now seen corresponding path program 2 times [2022-11-23 03:27:01,343 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:27:01,343 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [279098013] [2022-11-23 03:27:01,344 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:27:01,344 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:27:01,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:27:01,803 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 40 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:27:01,803 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:27:01,803 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [279098013] [2022-11-23 03:27:01,804 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [279098013] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 03:27:01,806 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1992520153] [2022-11-23 03:27:01,807 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-23 03:27:01,807 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 03:27:01,807 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b58868ba-8e50-457b-9a20-0af168c342b6/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 03:27:01,808 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b58868ba-8e50-457b-9a20-0af168c342b6/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 03:27:01,820 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b58868ba-8e50-457b-9a20-0af168c342b6/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-23 03:27:01,922 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-11-23 03:27:01,922 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-23 03:27:01,923 INFO L263 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-23 03:27:01,927 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 03:27:02,020 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2022-11-23 03:27:02,020 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 03:27:02,105 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2022-11-23 03:27:02,105 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1992520153] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 03:27:02,105 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-23 03:27:02,105 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 4, 4] total 14 [2022-11-23 03:27:02,106 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1309716249] [2022-11-23 03:27:02,106 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-23 03:27:02,107 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-11-23 03:27:02,107 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:27:02,107 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-11-23 03:27:02,108 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=153, Unknown=0, NotChecked=0, Total=210 [2022-11-23 03:27:02,108 INFO L87 Difference]: Start difference. First operand 23 states and 23 transitions. Second operand has 15 states, 14 states have (on average 2.2142857142857144) internal successors, (31), 15 states have internal predecessors, (31), 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) [2022-11-23 03:27:02,333 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 03:27:02,333 INFO L93 Difference]: Finished difference Result 28 states and 29 transitions. [2022-11-23 03:27:02,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-23 03:27:02,334 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 2.2142857142857144) internal successors, (31), 15 states have internal predecessors, (31), 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 22 [2022-11-23 03:27:02,334 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 03:27:02,335 INFO L225 Difference]: With dead ends: 28 [2022-11-23 03:27:02,335 INFO L226 Difference]: Without dead ends: 0 [2022-11-23 03:27:02,335 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 38 SyntacticMatches, 2 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 123 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=207, Invalid=495, Unknown=0, NotChecked=0, Total=702 [2022-11-23 03:27:02,339 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 14 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 12 SdHoareTripleChecker+Invalid, 54 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-23 03:27:02,340 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 12 Invalid, 54 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-23 03:27:02,341 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-23 03:27:02,342 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-23 03:27:02,342 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) [2022-11-23 03:27:02,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-23 03:27:02,343 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 22 [2022-11-23 03:27:02,343 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 03:27:02,343 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-23 03:27:02,343 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 2.2142857142857144) internal successors, (31), 15 states have internal predecessors, (31), 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) [2022-11-23 03:27:02,344 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-23 03:27:02,344 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-23 03:27:02,351 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2022-11-23 03:27:02,352 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2022-11-23 03:27:02,363 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b58868ba-8e50-457b-9a20-0af168c342b6/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-23 03:27:02,558 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b58868ba-8e50-457b-9a20-0af168c342b6/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 03:27:02,560 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-11-23 03:27:02,607 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 550) no Hoare annotation was computed. [2022-11-23 03:27:02,608 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-11-23 03:27:02,608 INFO L902 garLoopResultBuilder]: At program point L570(lines 565 571) the Hoare annotation is: true [2022-11-23 03:27:02,608 INFO L899 garLoopResultBuilder]: For program point L558(lines 558 564) no Hoare annotation was computed. [2022-11-23 03:27:02,608 INFO L902 garLoopResultBuilder]: At program point L556(lines 546 557) the Hoare annotation is: true [2022-11-23 03:27:02,608 INFO L899 garLoopResultBuilder]: For program point L550-2(lines 550 555) no Hoare annotation was computed. [2022-11-23 03:27:02,608 INFO L899 garLoopResultBuilder]: For program point L550-3(line 550) no Hoare annotation was computed. [2022-11-23 03:27:02,608 INFO L899 garLoopResultBuilder]: For program point L550-4(line 550) no Hoare annotation was computed. [2022-11-23 03:27:02,609 INFO L895 garLoopResultBuilder]: At program point L550-5(lines 550 555) the Hoare annotation is: (let ((.cse0 (<= |ULTIMATE.start_init_ll_~n#1| 2147483647))) (or (and (<= 1 |ULTIMATE.start_init_ll_~i~0#1|) .cse0) (and (= |ULTIMATE.start_init_ll_~i~0#1| 0) .cse0))) [2022-11-23 03:27:02,609 INFO L899 garLoopResultBuilder]: For program point L550-6(lines 550 555) no Hoare annotation was computed. [2022-11-23 03:27:02,609 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2022-11-23 03:27:02,609 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 550) no Hoare annotation was computed. [2022-11-23 03:27:02,609 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-11-23 03:27:02,609 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2022-11-23 03:27:02,610 INFO L899 garLoopResultBuilder]: For program point L561-1(line 561) no Hoare annotation was computed. [2022-11-23 03:27:02,610 INFO L899 garLoopResultBuilder]: For program point L561-3(lines 561 563) no Hoare annotation was computed. [2022-11-23 03:27:02,610 INFO L902 garLoopResultBuilder]: At program point L561-5(lines 561 563) the Hoare annotation is: true [2022-11-23 03:27:02,614 INFO L444 BasicCegarLoop]: Path program histogram: [2, 1, 1] [2022-11-23 03:27:02,616 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-23 03:27:02,628 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 03:27:02 BoogieIcfgContainer [2022-11-23 03:27:02,629 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-23 03:27:02,629 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-23 03:27:02,629 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-23 03:27:02,629 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-23 03:27:02,630 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:26:59" (3/4) ... [2022-11-23 03:27:02,633 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-23 03:27:02,645 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2022-11-23 03:27:02,645 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2022-11-23 03:27:02,645 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-23 03:27:02,646 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-23 03:27:02,685 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b58868ba-8e50-457b-9a20-0af168c342b6/bin/uautomizer-QkZJyEgLgS/witness.graphml [2022-11-23 03:27:02,685 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-23 03:27:02,686 INFO L158 Benchmark]: Toolchain (without parser) took 4334.52ms. Allocated memory is still 180.4MB. Free memory was 140.9MB in the beginning and 75.2MB in the end (delta: 65.7MB). Peak memory consumption was 66.3MB. Max. memory is 16.1GB. [2022-11-23 03:27:02,686 INFO L158 Benchmark]: CDTParser took 0.23ms. Allocated memory is still 138.4MB. Free memory is still 79.2MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-23 03:27:02,686 INFO L158 Benchmark]: CACSL2BoogieTranslator took 434.34ms. Allocated memory is still 180.4MB. Free memory was 140.5MB in the beginning and 124.8MB in the end (delta: 15.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-11-23 03:27:02,687 INFO L158 Benchmark]: Boogie Procedure Inliner took 47.24ms. Allocated memory is still 180.4MB. Free memory was 124.8MB in the beginning and 122.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-23 03:27:02,687 INFO L158 Benchmark]: Boogie Preprocessor took 45.00ms. Allocated memory is still 180.4MB. Free memory was 122.7MB in the beginning and 121.3MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-23 03:27:02,687 INFO L158 Benchmark]: RCFGBuilder took 371.03ms. Allocated memory is still 180.4MB. Free memory was 121.3MB in the beginning and 110.2MB in the end (delta: 11.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-23 03:27:02,687 INFO L158 Benchmark]: TraceAbstraction took 3374.25ms. Allocated memory is still 180.4MB. Free memory was 109.4MB in the beginning and 78.4MB in the end (delta: 31.1MB). Peak memory consumption was 32.8MB. Max. memory is 16.1GB. [2022-11-23 03:27:02,688 INFO L158 Benchmark]: Witness Printer took 56.29ms. Allocated memory is still 180.4MB. Free memory was 77.3MB in the beginning and 75.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-23 03:27:02,690 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23ms. Allocated memory is still 138.4MB. Free memory is still 79.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 434.34ms. Allocated memory is still 180.4MB. Free memory was 140.5MB in the beginning and 124.8MB in the end (delta: 15.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 47.24ms. Allocated memory is still 180.4MB. Free memory was 124.8MB in the beginning and 122.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 45.00ms. Allocated memory is still 180.4MB. Free memory was 122.7MB in the beginning and 121.3MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 371.03ms. Allocated memory is still 180.4MB. Free memory was 121.3MB in the beginning and 110.2MB in the end (delta: 11.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 3374.25ms. Allocated memory is still 180.4MB. Free memory was 109.4MB in the beginning and 78.4MB in the end (delta: 31.1MB). Peak memory consumption was 32.8MB. Max. memory is 16.1GB. * Witness Printer took 56.29ms. Allocated memory is still 180.4MB. Free memory was 77.3MB in the beginning and 75.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 550]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 550]: 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, 17 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 3.3s, OverallIterations: 4, TraceHistogramMax: 5, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 49 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 49 mSDsluCounter, 64 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 43 mSDsCounter, 13 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 119 IncrementalHoareTripleChecker+Invalid, 132 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 13 mSolverCounterUnsat, 21 mSDtfsCounter, 119 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 111 GetRequests, 59 SyntacticMatches, 2 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 164 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=23occurred in iteration=3, InterpolantAutomatonStates: 35, 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, 4 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 4 LocationsWithAnnotation, 4 PreInvPairs, 16 NumberOfFragments, 18 HoareAnnotationTreeSize, 4 FomulaSimplifications, 9 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 4 FomulaSimplificationsInter, 50 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.2s InterpolantComputationTime, 87 NumberOfCodeBlocks, 71 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 110 ConstructedInterpolants, 0 QuantifiedInterpolants, 312 SizeOfPredicates, 9 NumberOfNonLiveVariables, 281 ConjunctsInSsa, 16 ConjunctsInUnsatCore, 9 InterpolantComputations, 2 PerfectInterpolantSequences, 59/138 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: 550]: Loop Invariant Derived loop invariant: (1 <= i && n <= 2147483647) || (i == 0 && n <= 2147483647) - InvariantResult [Line: 546]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 561]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 565]: Loop Invariant Derived loop invariant: 1 RESULT: Ultimate proved your program to be correct! [2022-11-23 03:27:02,730 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b58868ba-8e50-457b-9a20-0af168c342b6/bin/uautomizer-QkZJyEgLgS/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