./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/ldv-memsafety/memleaks_test18_3.i --full-output --architecture 32bit -------------------------------------------------------------------------------- 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_7ed0c5e4-9400-47f9-a101-bfb1dc3b135a/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ed0c5e4-9400-47f9-a101-bfb1dc3b135a/bin/utaipan-gh47qXpMRh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ed0c5e4-9400-47f9-a101-bfb1dc3b135a/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ed0c5e4-9400-47f9-a101-bfb1dc3b135a/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-memsafety/memleaks_test18_3.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ed0c5e4-9400-47f9-a101-bfb1dc3b135a/bin/utaipan-gh47qXpMRh/config/svcomp-Overflow-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ed0c5e4-9400-47f9-a101-bfb1dc3b135a/bin/utaipan-gh47qXpMRh --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 Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 1df58a12292e53aa25870e709e17978d63a0e61d4dd56fb439981d66ecb6b925 --- 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 [2022-12-14 13:08:00,677 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 13:08:00,679 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 13:08:00,699 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 13:08:00,699 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 13:08:00,700 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 13:08:00,702 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 13:08:00,703 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 13:08:00,705 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 13:08:00,706 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 13:08:00,707 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 13:08:00,708 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 13:08:00,708 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 13:08:00,709 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 13:08:00,711 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 13:08:00,712 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 13:08:00,713 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 13:08:00,714 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 13:08:00,715 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 13:08:00,717 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 13:08:00,719 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 13:08:00,720 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 13:08:00,721 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 13:08:00,722 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 13:08:00,726 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 13:08:00,726 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 13:08:00,726 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 13:08:00,727 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 13:08:00,728 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 13:08:00,729 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 13:08:00,729 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 13:08:00,730 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 13:08:00,730 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 13:08:00,731 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 13:08:00,732 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 13:08:00,732 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 13:08:00,733 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 13:08:00,733 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 13:08:00,733 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 13:08:00,734 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 13:08:00,735 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 13:08:00,736 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ed0c5e4-9400-47f9-a101-bfb1dc3b135a/bin/utaipan-gh47qXpMRh/config/svcomp-Overflow-32bit-Taipan_Default.epf [2022-12-14 13:08:00,757 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 13:08:00,757 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 13:08:00,758 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 13:08:00,758 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 13:08:00,759 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 13:08:00,759 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 13:08:00,759 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 13:08:00,759 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 13:08:00,759 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 13:08:00,760 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-12-14 13:08:00,760 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 13:08:00,760 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 13:08:00,760 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-12-14 13:08:00,760 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-12-14 13:08:00,761 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 13:08:00,761 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-12-14 13:08:00,761 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-12-14 13:08:00,761 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-12-14 13:08:00,762 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 13:08:00,762 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-14 13:08:00,762 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-14 13:08:00,763 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 13:08:00,763 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-14 13:08:00,763 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 13:08:00,763 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 13:08:00,763 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 13:08:00,764 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 13:08:00,764 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-12-14 13:08:00,764 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-14 13:08:00,764 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 13:08:00,764 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 13:08:00,765 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 13:08:00,765 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 13:08:00,765 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 13:08:00,765 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 13:08:00,765 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 13:08:00,766 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-12-14 13:08:00,766 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 13:08:00,766 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 13:08:00,766 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-12-14 13:08:00,766 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 13:08:00,767 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 13:08:00,767 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 13:08:00,767 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ed0c5e4-9400-47f9-a101-bfb1dc3b135a/bin/utaipan-gh47qXpMRh/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ed0c5e4-9400-47f9-a101-bfb1dc3b135a/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1df58a12292e53aa25870e709e17978d63a0e61d4dd56fb439981d66ecb6b925 [2022-12-14 13:08:00,959 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 13:08:00,975 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 13:08:00,977 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 13:08:00,979 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 13:08:00,979 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 13:08:00,980 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ed0c5e4-9400-47f9-a101-bfb1dc3b135a/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/ldv-memsafety/memleaks_test18_3.i [2022-12-14 13:08:03,532 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 13:08:03,705 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 13:08:03,705 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ed0c5e4-9400-47f9-a101-bfb1dc3b135a/sv-benchmarks/c/ldv-memsafety/memleaks_test18_3.i [2022-12-14 13:08:03,714 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ed0c5e4-9400-47f9-a101-bfb1dc3b135a/bin/utaipan-gh47qXpMRh/data/0a949f471/513afc71273345bc8098cfc76d6e3f1c/FLAG56e00fc26 [2022-12-14 13:08:03,725 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ed0c5e4-9400-47f9-a101-bfb1dc3b135a/bin/utaipan-gh47qXpMRh/data/0a949f471/513afc71273345bc8098cfc76d6e3f1c [2022-12-14 13:08:03,727 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 13:08:03,728 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 13:08:03,729 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 13:08:03,729 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 13:08:03,732 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 13:08:03,733 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 01:08:03" (1/1) ... [2022-12-14 13:08:03,733 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1ad53e88 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:08:03, skipping insertion in model container [2022-12-14 13:08:03,734 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 01:08:03" (1/1) ... [2022-12-14 13:08:03,739 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 13:08:03,763 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 13:08:03,990 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 13:08:04,003 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 13:08:04,038 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 13:08:04,059 INFO L208 MainTranslator]: Completed translation [2022-12-14 13:08:04,060 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:08:04 WrapperNode [2022-12-14 13:08:04,060 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 13:08:04,061 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 13:08:04,061 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 13:08:04,061 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 13:08:04,066 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:08:04" (1/1) ... [2022-12-14 13:08:04,080 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:08:04" (1/1) ... [2022-12-14 13:08:04,094 INFO L138 Inliner]: procedures = 164, calls = 70, calls flagged for inlining = 21, calls inlined = 3, statements flattened = 32 [2022-12-14 13:08:04,094 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 13:08:04,095 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 13:08:04,095 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 13:08:04,095 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 13:08:04,103 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:08:04" (1/1) ... [2022-12-14 13:08:04,103 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:08:04" (1/1) ... [2022-12-14 13:08:04,106 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:08:04" (1/1) ... [2022-12-14 13:08:04,106 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:08:04" (1/1) ... [2022-12-14 13:08:04,109 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:08:04" (1/1) ... [2022-12-14 13:08:04,111 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:08:04" (1/1) ... [2022-12-14 13:08:04,112 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:08:04" (1/1) ... [2022-12-14 13:08:04,113 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:08:04" (1/1) ... [2022-12-14 13:08:04,114 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 13:08:04,115 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 13:08:04,115 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 13:08:04,115 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 13:08:04,116 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:08:04" (1/1) ... [2022-12-14 13:08:04,120 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 13:08:04,128 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ed0c5e4-9400-47f9-a101-bfb1dc3b135a/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 13:08:04,138 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ed0c5e4-9400-47f9-a101-bfb1dc3b135a/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 13:08:04,140 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ed0c5e4-9400-47f9-a101-bfb1dc3b135a/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 13:08:04,172 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-12-14 13:08:04,172 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-12-14 13:08:04,172 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-12-14 13:08:04,172 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 13:08:04,172 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-12-14 13:08:04,172 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-12-14 13:08:04,172 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 13:08:04,173 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 13:08:04,263 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 13:08:04,265 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 13:08:04,355 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 13:08:04,383 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 13:08:04,384 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-12-14 13:08:04,385 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 01:08:04 BoogieIcfgContainer [2022-12-14 13:08:04,386 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 13:08:04,387 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 13:08:04,388 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 13:08:04,390 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 13:08:04,390 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 01:08:03" (1/3) ... [2022-12-14 13:08:04,391 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1907a28 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 01:08:04, skipping insertion in model container [2022-12-14 13:08:04,391 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:08:04" (2/3) ... [2022-12-14 13:08:04,391 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1907a28 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 01:08:04, skipping insertion in model container [2022-12-14 13:08:04,391 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 01:08:04" (3/3) ... [2022-12-14 13:08:04,392 INFO L112 eAbstractionObserver]: Analyzing ICFG memleaks_test18_3.i [2022-12-14 13:08:04,407 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 13:08:04,407 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-12-14 13:08:04,460 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 13:08:04,467 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=FINITE_AUTOMATA, 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;@212a72c6, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 13:08:04,467 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-12-14 13:08:04,471 INFO L276 IsEmpty]: Start isEmpty. Operand has 15 states, 9 states have (on average 1.4444444444444444) internal successors, (13), 11 states have internal predecessors, (13), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-12-14 13:08:04,478 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-12-14 13:08:04,478 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 13:08:04,479 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 13:08:04,479 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-12-14 13:08:04,484 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 13:08:04,485 INFO L85 PathProgramCache]: Analyzing trace with hash 1337089233, now seen corresponding path program 1 times [2022-12-14 13:08:04,494 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 13:08:04,495 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [313095566] [2022-12-14 13:08:04,495 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 13:08:04,495 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 13:08:04,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 13:08:04,742 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-14 13:08:04,742 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 13:08:04,742 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [313095566] [2022-12-14 13:08:04,743 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [313095566] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 13:08:04,743 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 13:08:04,743 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 13:08:04,745 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1027648632] [2022-12-14 13:08:04,745 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 13:08:04,748 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 13:08:04,749 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 13:08:04,772 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 13:08:04,772 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 13:08:04,774 INFO L87 Difference]: Start difference. First operand has 15 states, 9 states have (on average 1.4444444444444444) internal successors, (13), 11 states have internal predecessors, (13), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-12-14 13:08:04,825 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 13:08:04,825 INFO L93 Difference]: Finished difference Result 24 states and 27 transitions. [2022-12-14 13:08:04,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 13:08:04,827 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 12 [2022-12-14 13:08:04,827 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 13:08:04,834 INFO L225 Difference]: With dead ends: 24 [2022-12-14 13:08:04,834 INFO L226 Difference]: Without dead ends: 18 [2022-12-14 13:08:04,837 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 [2022-12-14 13:08:04,841 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 6 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 25 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 13:08:04,842 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 25 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 13:08:04,856 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2022-12-14 13:08:04,871 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2022-12-14 13:08:04,873 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18 states, 12 states have (on average 1.1666666666666667) internal successors, (14), 13 states have internal predecessors, (14), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-12-14 13:08:04,873 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 20 transitions. [2022-12-14 13:08:04,875 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 20 transitions. Word has length 12 [2022-12-14 13:08:04,876 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 13:08:04,876 INFO L495 AbstractCegarLoop]: Abstraction has 18 states and 20 transitions. [2022-12-14 13:08:04,876 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-12-14 13:08:04,877 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 20 transitions. [2022-12-14 13:08:04,878 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-12-14 13:08:04,878 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 13:08:04,878 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 13:08:04,878 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-14 13:08:04,879 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-12-14 13:08:04,879 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 13:08:04,880 INFO L85 PathProgramCache]: Analyzing trace with hash -1200797944, now seen corresponding path program 1 times [2022-12-14 13:08:04,880 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 13:08:04,880 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2059354739] [2022-12-14 13:08:04,880 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 13:08:04,881 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 13:08:04,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 13:08:05,028 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-12-14 13:08:05,028 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 13:08:05,028 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2059354739] [2022-12-14 13:08:05,029 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2059354739] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 13:08:05,029 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1260680020] [2022-12-14 13:08:05,029 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 13:08:05,029 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 13:08:05,030 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ed0c5e4-9400-47f9-a101-bfb1dc3b135a/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 13:08:05,031 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ed0c5e4-9400-47f9-a101-bfb1dc3b135a/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 13:08:05,032 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ed0c5e4-9400-47f9-a101-bfb1dc3b135a/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-12-14 13:08:05,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 13:08:05,110 INFO L263 TraceCheckSpWp]: Trace formula consists of 134 conjuncts, 5 conjunts are in the unsatisfiable core [2022-12-14 13:08:05,116 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 13:08:05,175 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-12-14 13:08:05,175 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 13:08:05,175 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1260680020] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 13:08:05,175 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-14 13:08:05,175 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2022-12-14 13:08:05,176 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [611862835] [2022-12-14 13:08:05,176 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 13:08:05,177 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-14 13:08:05,177 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 13:08:05,178 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-14 13:08:05,178 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-12-14 13:08:05,178 INFO L87 Difference]: Start difference. First operand 18 states and 20 transitions. Second operand has 6 states, 5 states have (on average 2.2) internal successors, (11), 6 states have internal predecessors, (11), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-12-14 13:08:05,217 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 13:08:05,217 INFO L93 Difference]: Finished difference Result 18 states and 20 transitions. [2022-12-14 13:08:05,217 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 13:08:05,218 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.2) internal successors, (11), 6 states have internal predecessors, (11), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Word has length 19 [2022-12-14 13:08:05,218 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 13:08:05,218 INFO L225 Difference]: With dead ends: 18 [2022-12-14 13:08:05,219 INFO L226 Difference]: Without dead ends: 17 [2022-12-14 13:08:05,219 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-12-14 13:08:05,221 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 9 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 21 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 13:08:05,221 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 21 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 13:08:05,222 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2022-12-14 13:08:05,225 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2022-12-14 13:08:05,225 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17 states, 12 states have (on average 1.0833333333333333) internal successors, (13), 12 states have internal predecessors, (13), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-12-14 13:08:05,226 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 19 transitions. [2022-12-14 13:08:05,226 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 19 transitions. Word has length 19 [2022-12-14 13:08:05,227 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 13:08:05,227 INFO L495 AbstractCegarLoop]: Abstraction has 17 states and 19 transitions. [2022-12-14 13:08:05,227 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.2) internal successors, (11), 6 states have internal predecessors, (11), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-12-14 13:08:05,227 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 19 transitions. [2022-12-14 13:08:05,228 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-12-14 13:08:05,228 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 13:08:05,228 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 13:08:05,234 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ed0c5e4-9400-47f9-a101-bfb1dc3b135a/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-12-14 13:08:05,429 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ed0c5e4-9400-47f9-a101-bfb1dc3b135a/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 13:08:05,431 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-12-14 13:08:05,432 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 13:08:05,432 INFO L85 PathProgramCache]: Analyzing trace with hash 1429969461, now seen corresponding path program 1 times [2022-12-14 13:08:05,433 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 13:08:05,433 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [954414370] [2022-12-14 13:08:05,433 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 13:08:05,434 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 13:08:05,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 13:08:05,634 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-12-14 13:08:05,634 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 13:08:05,634 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [954414370] [2022-12-14 13:08:05,634 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [954414370] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 13:08:05,634 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1950712415] [2022-12-14 13:08:05,634 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 13:08:05,634 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 13:08:05,635 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ed0c5e4-9400-47f9-a101-bfb1dc3b135a/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 13:08:05,635 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ed0c5e4-9400-47f9-a101-bfb1dc3b135a/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 13:08:05,636 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ed0c5e4-9400-47f9-a101-bfb1dc3b135a/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-12-14 13:08:05,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 13:08:05,697 INFO L263 TraceCheckSpWp]: Trace formula consists of 135 conjuncts, 5 conjunts are in the unsatisfiable core [2022-12-14 13:08:05,698 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 13:08:05,729 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-12-14 13:08:05,729 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 13:08:05,781 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-12-14 13:08:05,781 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1950712415] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 13:08:05,781 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1890914003] [2022-12-14 13:08:05,800 INFO L159 IcfgInterpreter]: Started Sifa with 12 locations of interest [2022-12-14 13:08:05,801 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 13:08:05,804 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 13:08:05,810 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 13:08:05,810 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 13:08:05,913 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-12-14 13:08:05,919 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2022-12-14 13:08:06,192 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-12-14 13:08:06,201 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 7 [2022-12-14 13:08:06,289 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 7 [2022-12-14 13:08:06,298 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-12-14 13:08:06,354 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 13:08:06,367 INFO L321 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size [2022-12-14 13:08:06,367 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 177 treesize of output 169 [2022-12-14 13:08:06,378 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 13:08:06,388 INFO L321 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2022-12-14 13:08:06,389 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 177 treesize of output 173 [2022-12-14 13:08:06,422 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 1 [2022-12-14 13:08:06,630 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-12-14 13:08:06,640 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-12-14 13:08:06,795 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-12-14 13:08:06,804 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-12-14 13:08:06,834 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2022-12-14 13:08:06,839 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2022-12-14 13:08:06,843 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 1 [2022-12-14 13:08:06,899 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2022-12-14 13:08:06,916 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 1 [2022-12-14 13:08:06,923 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2022-12-14 13:08:07,076 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-12-14 13:08:07,084 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 7 [2022-12-14 13:08:07,160 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 7 [2022-12-14 13:08:07,167 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-12-14 13:08:07,188 INFO L197 IcfgInterpreter]: Interpreting procedure ldv_malloc with input of size 30 for LOIs [2022-12-14 13:08:07,200 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2022-12-14 13:08:07,205 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-12-14 13:08:07,220 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 13:08:08,188 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '319#(and (= |ULTIMATE.start_entry_point_~array~0#1.offset| 0) (= |~#ldv_global_msg_list~0.offset| 0) (<= 0 |ULTIMATE.start_entry_point_~i~0#1|) (= |ULTIMATE.start_entry_point_~p~0#1.offset| 0) (= 10 |ULTIMATE.start_entry_point_~len~0#1|) (< 2147483646 |ULTIMATE.start_entry_point_#t~post39#1|) (= |~#ldv_global_msg_list~0.base| 1) (= |#NULL.offset| 0) (<= 0 |#StackHeapBarrier|) (= |#NULL.base| 0))' at error location [2022-12-14 13:08:08,188 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-12-14 13:08:08,188 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-14 13:08:08,189 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2022-12-14 13:08:08,189 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2005723964] [2022-12-14 13:08:08,189 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-14 13:08:08,189 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-12-14 13:08:08,189 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 13:08:08,190 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-12-14 13:08:08,191 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=389, Unknown=0, NotChecked=0, Total=462 [2022-12-14 13:08:08,191 INFO L87 Difference]: Start difference. First operand 17 states and 19 transitions. Second operand has 12 states, 11 states have (on average 2.5454545454545454) internal successors, (28), 12 states have internal predecessors, (28), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2022-12-14 13:08:08,286 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 13:08:08,286 INFO L93 Difference]: Finished difference Result 33 states and 40 transitions. [2022-12-14 13:08:08,286 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-12-14 13:08:08,287 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.5454545454545454) internal successors, (28), 12 states have internal predecessors, (28), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) Word has length 20 [2022-12-14 13:08:08,287 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 13:08:08,287 INFO L225 Difference]: With dead ends: 33 [2022-12-14 13:08:08,288 INFO L226 Difference]: Without dead ends: 32 [2022-12-14 13:08:08,288 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 185 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=109, Invalid=541, Unknown=0, NotChecked=0, Total=650 [2022-12-14 13:08:08,289 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 16 mSDsluCounter, 51 mSDsCounter, 0 mSdLazyCounter, 58 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 62 SdHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 58 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 13:08:08,289 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 62 Invalid, 59 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 13:08:08,289 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2022-12-14 13:08:08,292 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 32. [2022-12-14 13:08:08,292 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32 states, 24 states have (on average 1.0416666666666667) internal successors, (25), 24 states have internal predecessors, (25), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2022-12-14 13:08:08,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 37 transitions. [2022-12-14 13:08:08,293 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 37 transitions. Word has length 20 [2022-12-14 13:08:08,293 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 13:08:08,293 INFO L495 AbstractCegarLoop]: Abstraction has 32 states and 37 transitions. [2022-12-14 13:08:08,293 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 2.5454545454545454) internal successors, (28), 12 states have internal predecessors, (28), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2022-12-14 13:08:08,294 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 37 transitions. [2022-12-14 13:08:08,295 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2022-12-14 13:08:08,295 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 13:08:08,295 INFO L195 NwaCegarLoop]: trace histogram [6, 5, 5, 5, 5, 5, 4, 1, 1, 1, 1, 1, 1] [2022-12-14 13:08:08,299 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ed0c5e4-9400-47f9-a101-bfb1dc3b135a/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-12-14 13:08:08,496 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ed0c5e4-9400-47f9-a101-bfb1dc3b135a/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 13:08:08,497 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-12-14 13:08:08,498 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 13:08:08,499 INFO L85 PathProgramCache]: Analyzing trace with hash 1799501132, now seen corresponding path program 2 times [2022-12-14 13:08:08,499 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 13:08:08,500 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1173414481] [2022-12-14 13:08:08,500 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 13:08:08,501 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 13:08:08,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 13:08:08,723 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 0 proven. 50 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-12-14 13:08:08,723 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 13:08:08,723 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1173414481] [2022-12-14 13:08:08,724 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1173414481] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 13:08:08,724 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1728217499] [2022-12-14 13:08:08,724 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-12-14 13:08:08,724 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 13:08:08,724 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ed0c5e4-9400-47f9-a101-bfb1dc3b135a/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 13:08:08,725 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ed0c5e4-9400-47f9-a101-bfb1dc3b135a/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 13:08:08,726 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ed0c5e4-9400-47f9-a101-bfb1dc3b135a/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-12-14 13:08:08,791 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2022-12-14 13:08:08,791 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-14 13:08:08,792 INFO L263 TraceCheckSpWp]: Trace formula consists of 108 conjuncts, 4 conjunts are in the unsatisfiable core [2022-12-14 13:08:08,794 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 13:08:08,842 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2022-12-14 13:08:08,842 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 13:08:08,905 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2022-12-14 13:08:08,905 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1728217499] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 13:08:08,905 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1332635472] [2022-12-14 13:08:08,906 INFO L159 IcfgInterpreter]: Started Sifa with 12 locations of interest [2022-12-14 13:08:08,907 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 13:08:08,907 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 13:08:08,907 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 13:08:08,907 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 13:08:08,924 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-12-14 13:08:08,928 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2022-12-14 13:08:09,053 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 7 [2022-12-14 13:08:09,059 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-12-14 13:08:09,124 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-12-14 13:08:09,131 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 7 [2022-12-14 13:08:09,172 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 1 [2022-12-14 13:08:09,180 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 13:08:09,190 INFO L321 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size [2022-12-14 13:08:09,190 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 177 treesize of output 169 [2022-12-14 13:08:09,198 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 13:08:09,209 INFO L321 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2022-12-14 13:08:09,209 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 177 treesize of output 173 [2022-12-14 13:08:09,502 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-12-14 13:08:09,510 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-12-14 13:08:09,528 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-12-14 13:08:09,536 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-12-14 13:08:09,730 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-12-14 13:08:09,739 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-12-14 13:08:09,753 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-12-14 13:08:09,763 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-12-14 13:08:09,788 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 1 [2022-12-14 13:08:09,792 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2022-12-14 13:08:09,797 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2022-12-14 13:08:09,871 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2022-12-14 13:08:09,878 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2022-12-14 13:08:09,885 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 1 [2022-12-14 13:08:10,045 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 7 [2022-12-14 13:08:10,052 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-12-14 13:08:10,137 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 7 [2022-12-14 13:08:10,144 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-12-14 13:08:10,169 INFO L197 IcfgInterpreter]: Interpreting procedure ldv_malloc with input of size 30 for LOIs [2022-12-14 13:08:10,185 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2022-12-14 13:08:10,189 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-12-14 13:08:10,197 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 13:08:10,949 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '684#(and (= |ULTIMATE.start_entry_point_~array~0#1.offset| 0) (= |~#ldv_global_msg_list~0.offset| 0) (<= 0 |ULTIMATE.start_entry_point_~i~0#1|) (= |ULTIMATE.start_entry_point_~p~0#1.offset| 0) (= 10 |ULTIMATE.start_entry_point_~len~0#1|) (< 2147483646 |ULTIMATE.start_entry_point_#t~post39#1|) (= |~#ldv_global_msg_list~0.base| 1) (= |#NULL.offset| 0) (<= 0 |#StackHeapBarrier|) (= |#NULL.base| 0))' at error location [2022-12-14 13:08:10,949 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-12-14 13:08:10,949 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-14 13:08:10,949 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 4, 4] total 17 [2022-12-14 13:08:10,949 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1665715181] [2022-12-14 13:08:10,950 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-14 13:08:10,950 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-12-14 13:08:10,950 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 13:08:10,951 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-12-14 13:08:10,951 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=125, Invalid=631, Unknown=0, NotChecked=0, Total=756 [2022-12-14 13:08:10,951 INFO L87 Difference]: Start difference. First operand 32 states and 37 transitions. Second operand has 18 states, 17 states have (on average 2.7058823529411766) internal successors, (46), 18 states have internal predecessors, (46), 10 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 10 states have call predecessors, (12), 10 states have call successors, (12) [2022-12-14 13:08:11,145 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 13:08:11,145 INFO L93 Difference]: Finished difference Result 38 states and 45 transitions. [2022-12-14 13:08:11,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-12-14 13:08:11,145 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 17 states have (on average 2.7058823529411766) internal successors, (46), 18 states have internal predecessors, (46), 10 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 10 states have call predecessors, (12), 10 states have call successors, (12) Word has length 41 [2022-12-14 13:08:11,146 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 13:08:11,146 INFO L225 Difference]: With dead ends: 38 [2022-12-14 13:08:11,146 INFO L226 Difference]: Without dead ends: 0 [2022-12-14 13:08:11,148 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 145 GetRequests, 106 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 348 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=332, Invalid=1308, Unknown=0, NotChecked=0, Total=1640 [2022-12-14 13:08:11,148 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 28 mSDsluCounter, 35 mSDsCounter, 0 mSdLazyCounter, 68 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 46 SdHoareTripleChecker+Invalid, 71 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 68 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 13:08:11,149 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [28 Valid, 46 Invalid, 71 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 68 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 13:08:11,149 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-12-14 13:08:11,149 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-12-14 13:08:11,149 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) [2022-12-14 13:08:11,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-12-14 13:08:11,150 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 41 [2022-12-14 13:08:11,150 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 13:08:11,150 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-12-14 13:08:11,150 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 17 states have (on average 2.7058823529411766) internal successors, (46), 18 states have internal predecessors, (46), 10 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 10 states have call predecessors, (12), 10 states have call successors, (12) [2022-12-14 13:08:11,150 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-12-14 13:08:11,150 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-12-14 13:08:11,152 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2022-12-14 13:08:11,153 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2022-12-14 13:08:11,157 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ed0c5e4-9400-47f9-a101-bfb1dc3b135a/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-12-14 13:08:11,353 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ed0c5e4-9400-47f9-a101-bfb1dc3b135a/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 13:08:11,359 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-12-14 13:08:11,604 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 525 531) the Hoare annotation is: true [2022-12-14 13:08:11,605 INFO L899 garLoopResultBuilder]: For program point ldv_mallocEXIT(lines 525 531) no Hoare annotation was computed. [2022-12-14 13:08:11,605 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 766) no Hoare annotation was computed. [2022-12-14 13:08:11,605 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-12-14 13:08:11,606 INFO L899 garLoopResultBuilder]: For program point L766-3(line 766) no Hoare annotation was computed. [2022-12-14 13:08:11,606 INFO L895 garLoopResultBuilder]: At program point L762(line 762) the Hoare annotation is: (<= |ULTIMATE.start_entry_point_~len~0#1| 10) [2022-12-14 13:08:11,606 INFO L899 garLoopResultBuilder]: For program point L766-4(line 766) no Hoare annotation was computed. [2022-12-14 13:08:11,607 INFO L899 garLoopResultBuilder]: For program point L762-1(line 762) no Hoare annotation was computed. [2022-12-14 13:08:11,607 INFO L895 garLoopResultBuilder]: At program point L766-5(lines 766 769) the Hoare annotation is: (let ((.cse0 (<= |ULTIMATE.start_entry_point_~len~0#1| 10))) (or (and .cse0 (< |ULTIMATE.start_entry_point_~i~0#1| 2147483647) (<= 1 |ULTIMATE.start_entry_point_~i~0#1|)) (and .cse0 (= |ULTIMATE.start_entry_point_~i~0#1| 0)))) [2022-12-14 13:08:11,608 INFO L902 garLoopResultBuilder]: At program point L766-6(lines 760 771) the Hoare annotation is: true [2022-12-14 13:08:11,608 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2022-12-14 13:08:11,608 INFO L895 garLoopResultBuilder]: At program point L767(line 767) the Hoare annotation is: (let ((.cse0 (<= |ULTIMATE.start_entry_point_~len~0#1| 10))) (or (and .cse0 (<= 1 |ULTIMATE.start_entry_point_~i~0#1|) (<= |ULTIMATE.start_entry_point_~i~0#1| 9)) (and .cse0 (= |ULTIMATE.start_entry_point_~i~0#1| 0)))) [2022-12-14 13:08:11,609 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 766) no Hoare annotation was computed. [2022-12-14 13:08:11,609 INFO L899 garLoopResultBuilder]: For program point L767-1(line 767) no Hoare annotation was computed. [2022-12-14 13:08:11,609 INFO L899 garLoopResultBuilder]: For program point L765(line 765) no Hoare annotation was computed. [2022-12-14 13:08:11,616 INFO L445 BasicCegarLoop]: Path program histogram: [2, 1, 1] [2022-12-14 13:08:11,619 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-14 13:08:11,630 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.12 01:08:11 BoogieIcfgContainer [2022-12-14 13:08:11,631 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-14 13:08:11,631 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-14 13:08:11,631 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-14 13:08:11,631 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-14 13:08:11,632 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 01:08:04" (3/4) ... [2022-12-14 13:08:11,634 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-12-14 13:08:11,639 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure ldv_malloc [2022-12-14 13:08:11,641 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2022-12-14 13:08:11,641 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2022-12-14 13:08:11,641 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-12-14 13:08:11,661 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ed0c5e4-9400-47f9-a101-bfb1dc3b135a/bin/utaipan-gh47qXpMRh/witness.graphml [2022-12-14 13:08:11,661 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-14 13:08:11,661 INFO L158 Benchmark]: Toolchain (without parser) took 7933.37ms. Allocated memory was 125.8MB in the beginning and 172.0MB in the end (delta: 46.1MB). Free memory was 88.2MB in the beginning and 60.4MB in the end (delta: 27.9MB). Peak memory consumption was 78.0MB. Max. memory is 16.1GB. [2022-12-14 13:08:11,661 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 125.8MB. Free memory is still 68.0MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 13:08:11,662 INFO L158 Benchmark]: CACSL2BoogieTranslator took 331.23ms. Allocated memory is still 125.8MB. Free memory was 88.2MB in the beginning and 66.6MB in the end (delta: 21.6MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2022-12-14 13:08:11,662 INFO L158 Benchmark]: Boogie Procedure Inliner took 33.62ms. Allocated memory is still 125.8MB. Free memory was 66.6MB in the beginning and 64.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 13:08:11,662 INFO L158 Benchmark]: Boogie Preprocessor took 19.53ms. Allocated memory is still 125.8MB. Free memory was 64.5MB in the beginning and 63.1MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 13:08:11,662 INFO L158 Benchmark]: RCFGBuilder took 270.91ms. Allocated memory is still 125.8MB. Free memory was 63.1MB in the beginning and 50.6MB in the end (delta: 12.5MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-12-14 13:08:11,662 INFO L158 Benchmark]: TraceAbstraction took 7243.15ms. Allocated memory was 125.8MB in the beginning and 172.0MB in the end (delta: 46.1MB). Free memory was 50.3MB in the beginning and 62.4MB in the end (delta: -12.2MB). Peak memory consumption was 38.2MB. Max. memory is 16.1GB. [2022-12-14 13:08:11,662 INFO L158 Benchmark]: Witness Printer took 29.84ms. Allocated memory is still 172.0MB. Free memory was 62.4MB in the beginning and 60.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 13:08:11,663 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 125.8MB. Free memory is still 68.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 331.23ms. Allocated memory is still 125.8MB. Free memory was 88.2MB in the beginning and 66.6MB in the end (delta: 21.6MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 33.62ms. Allocated memory is still 125.8MB. Free memory was 66.6MB in the beginning and 64.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 19.53ms. Allocated memory is still 125.8MB. Free memory was 64.5MB in the beginning and 63.1MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 270.91ms. Allocated memory is still 125.8MB. Free memory was 63.1MB in the beginning and 50.6MB in the end (delta: 12.5MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 7243.15ms. Allocated memory was 125.8MB in the beginning and 172.0MB in the end (delta: 46.1MB). Free memory was 50.3MB in the beginning and 62.4MB in the end (delta: -12.2MB). Peak memory consumption was 38.2MB. Max. memory is 16.1GB. * Witness Printer took 29.84ms. Allocated memory is still 172.0MB. Free memory was 62.4MB in the beginning and 60.4MB 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: 766]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 766]: 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 2 procedures, 15 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 7.2s, OverallIterations: 4, TraceHistogramMax: 6, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.2s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 59 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 59 mSDsluCounter, 154 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 114 mSDsCounter, 5 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 177 IncrementalHoareTripleChecker+Invalid, 182 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 5 mSolverCounterUnsat, 40 mSDtfsCounter, 177 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 241 GetRequests, 167 SyntacticMatches, 0 SemanticMatches, 74 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 534 ImplicationChecksByTransitivity, 2.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=32occurred in iteration=3, InterpolantAutomatonStates: 36, 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, 5 LocationsWithAnnotation, 11 PreInvPairs, 23 NumberOfFragments, 41 HoareAnnotationTreeSize, 11 FomulaSimplifications, 18 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 5 FomulaSimplificationsInter, 90 FormulaSimplificationTreeSizeReductionInter, 0.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 172 NumberOfCodeBlocks, 145 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 224 ConstructedInterpolants, 0 QuantifiedInterpolants, 504 SizeOfPredicates, 7 NumberOfNonLiveVariables, 377 ConjunctsInSsa, 14 ConjunctsInUnsatCore, 9 InterpolantComputations, 2 PerfectInterpolantSequences, 194/295 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: 766]: Loop Invariant Derived loop invariant: ((len <= 10 && i < 2147483647) && 1 <= i) || (len <= 10 && i == 0) - InvariantResult [Line: 760]: Loop Invariant Derived loop invariant: 1 RESULT: Ultimate proved your program to be correct! [2022-12-14 13:08:11,675 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ed0c5e4-9400-47f9-a101-bfb1dc3b135a/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE