./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-numeric/Et3_true.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 38b53e6a 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_2aa2c0d2-f9a2-49a6-aae7-f087083bf6d6/bin/utaipan-ByfvJB40ur/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2aa2c0d2-f9a2-49a6-aae7-f087083bf6d6/bin/utaipan-ByfvJB40ur/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2aa2c0d2-f9a2-49a6-aae7-f087083bf6d6/bin/utaipan-ByfvJB40ur/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2aa2c0d2-f9a2-49a6-aae7-f087083bf6d6/bin/utaipan-ByfvJB40ur/config/TaipanReach.xml -i ../../sv-benchmarks/c/termination-numeric/Et3_true.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2aa2c0d2-f9a2-49a6-aae7-f087083bf6d6/bin/utaipan-ByfvJB40ur/config/svcomp-Overflow-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2aa2c0d2-f9a2-49a6-aae7-f087083bf6d6/bin/utaipan-ByfvJB40ur --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 64bit --witnessprinter.graph.data.programhash 350bcba9492528817ac8a0cf6c60305675b82628002dcb9cf778962d99ace2e1 --- 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-38b53e6 [2022-11-26 01:11:38,581 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-26 01:11:38,583 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-26 01:11:38,606 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-26 01:11:38,610 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-26 01:11:38,613 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-26 01:11:38,619 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-26 01:11:38,621 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-26 01:11:38,624 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-26 01:11:38,630 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-26 01:11:38,631 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-26 01:11:38,632 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-26 01:11:38,632 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-26 01:11:38,633 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-26 01:11:38,634 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-26 01:11:38,635 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-26 01:11:38,636 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-26 01:11:38,637 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-26 01:11:38,642 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-26 01:11:38,649 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-26 01:11:38,652 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-26 01:11:38,654 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-26 01:11:38,656 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-26 01:11:38,657 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-26 01:11:38,668 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-26 01:11:38,668 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-26 01:11:38,669 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-26 01:11:38,671 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-26 01:11:38,671 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-26 01:11:38,672 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-26 01:11:38,673 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-26 01:11:38,674 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-26 01:11:38,676 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-26 01:11:38,677 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-26 01:11:38,679 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-26 01:11:38,679 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-26 01:11:38,680 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-26 01:11:38,680 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-26 01:11:38,681 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-26 01:11:38,682 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-26 01:11:38,682 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-26 01:11:38,683 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2aa2c0d2-f9a2-49a6-aae7-f087083bf6d6/bin/utaipan-ByfvJB40ur/config/svcomp-Overflow-64bit-Taipan_Default.epf [2022-11-26 01:11:38,728 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-26 01:11:38,728 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-26 01:11:38,729 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-26 01:11:38,729 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-26 01:11:38,730 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-26 01:11:38,730 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-26 01:11:38,730 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-26 01:11:38,731 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-26 01:11:38,731 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-26 01:11:38,731 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-26 01:11:38,732 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-26 01:11:38,732 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-26 01:11:38,733 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-26 01:11:38,733 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-26 01:11:38,733 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-26 01:11:38,733 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-26 01:11:38,734 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-26 01:11:38,734 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-26 01:11:38,735 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-26 01:11:38,735 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-26 01:11:38,735 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-26 01:11:38,735 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-26 01:11:38,735 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-26 01:11:38,736 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-26 01:11:38,736 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-26 01:11:38,736 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-26 01:11:38,737 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-26 01:11:38,737 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-26 01:11:38,737 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-26 01:11:38,737 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-26 01:11:38,737 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-26 01:11:38,738 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-26 01:11:38,738 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-26 01:11:38,738 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-26 01:11:38,739 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-26 01:11:38,739 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-26 01:11:38,739 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-26 01:11:38,739 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-26 01:11:38,739 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-26 01:11:38,740 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-26 01:11:38,740 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_2aa2c0d2-f9a2-49a6-aae7-f087083bf6d6/bin/utaipan-ByfvJB40ur/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2aa2c0d2-f9a2-49a6-aae7-f087083bf6d6/bin/utaipan-ByfvJB40ur Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 350bcba9492528817ac8a0cf6c60305675b82628002dcb9cf778962d99ace2e1 [2022-11-26 01:11:39,057 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-26 01:11:39,081 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-26 01:11:39,084 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-26 01:11:39,086 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-26 01:11:39,086 INFO L275 PluginConnector]: CDTParser initialized [2022-11-26 01:11:39,088 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2aa2c0d2-f9a2-49a6-aae7-f087083bf6d6/bin/utaipan-ByfvJB40ur/../../sv-benchmarks/c/termination-numeric/Et3_true.c [2022-11-26 01:11:42,173 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-26 01:11:42,411 INFO L351 CDTParser]: Found 1 translation units. [2022-11-26 01:11:42,412 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2aa2c0d2-f9a2-49a6-aae7-f087083bf6d6/sv-benchmarks/c/termination-numeric/Et3_true.c [2022-11-26 01:11:42,418 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2aa2c0d2-f9a2-49a6-aae7-f087083bf6d6/bin/utaipan-ByfvJB40ur/data/5e90e9e44/1c9f6c61a5034a979f901742d4f71565/FLAG2134d2d3a [2022-11-26 01:11:42,434 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2aa2c0d2-f9a2-49a6-aae7-f087083bf6d6/bin/utaipan-ByfvJB40ur/data/5e90e9e44/1c9f6c61a5034a979f901742d4f71565 [2022-11-26 01:11:42,437 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-26 01:11:42,439 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-26 01:11:42,441 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-26 01:11:42,441 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-26 01:11:42,445 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-26 01:11:42,446 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 01:11:42" (1/1) ... [2022-11-26 01:11:42,448 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5c36460e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 01:11:42, skipping insertion in model container [2022-11-26 01:11:42,448 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 01:11:42" (1/1) ... [2022-11-26 01:11:42,456 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-26 01:11:42,471 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-26 01:11:42,635 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-26 01:11:42,641 INFO L203 MainTranslator]: Completed pre-run [2022-11-26 01:11:42,657 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-26 01:11:42,671 INFO L208 MainTranslator]: Completed translation [2022-11-26 01:11:42,671 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 01:11:42 WrapperNode [2022-11-26 01:11:42,672 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-26 01:11:42,673 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-26 01:11:42,673 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-26 01:11:42,673 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-26 01:11:42,683 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 01:11:42" (1/1) ... [2022-11-26 01:11:42,688 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 01:11:42" (1/1) ... [2022-11-26 01:11:42,708 INFO L138 Inliner]: procedures = 6, calls = 6, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 18 [2022-11-26 01:11:42,708 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-26 01:11:42,709 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-26 01:11:42,710 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-26 01:11:42,710 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-26 01:11:42,720 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 01:11:42" (1/1) ... [2022-11-26 01:11:42,721 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 01:11:42" (1/1) ... [2022-11-26 01:11:42,722 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 01:11:42" (1/1) ... [2022-11-26 01:11:42,722 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 01:11:42" (1/1) ... [2022-11-26 01:11:42,725 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 01:11:42" (1/1) ... [2022-11-26 01:11:42,726 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 01:11:42" (1/1) ... [2022-11-26 01:11:42,727 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 01:11:42" (1/1) ... [2022-11-26 01:11:42,728 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 01:11:42" (1/1) ... [2022-11-26 01:11:42,730 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-26 01:11:42,731 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-26 01:11:42,731 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-26 01:11:42,732 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-26 01:11:42,733 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 01:11:42" (1/1) ... [2022-11-26 01:11:42,740 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-26 01:11:42,753 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2aa2c0d2-f9a2-49a6-aae7-f087083bf6d6/bin/utaipan-ByfvJB40ur/z3 [2022-11-26 01:11:42,768 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2aa2c0d2-f9a2-49a6-aae7-f087083bf6d6/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-26 01:11:42,799 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2aa2c0d2-f9a2-49a6-aae7-f087083bf6d6/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-26 01:11:42,828 INFO L130 BoogieDeclarations]: Found specification of procedure random [2022-11-26 01:11:42,828 INFO L138 BoogieDeclarations]: Found implementation of procedure random [2022-11-26 01:11:42,830 INFO L130 BoogieDeclarations]: Found specification of procedure loop [2022-11-26 01:11:42,831 INFO L138 BoogieDeclarations]: Found implementation of procedure loop [2022-11-26 01:11:42,831 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-26 01:11:42,831 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-26 01:11:42,907 INFO L235 CfgBuilder]: Building ICFG [2022-11-26 01:11:42,909 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-26 01:11:43,073 INFO L276 CfgBuilder]: Performing block encoding [2022-11-26 01:11:43,089 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-26 01:11:43,089 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-26 01:11:43,092 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 01:11:43 BoogieIcfgContainer [2022-11-26 01:11:43,093 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-26 01:11:43,095 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-26 01:11:43,096 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-26 01:11:43,099 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-26 01:11:43,100 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 01:11:42" (1/3) ... [2022-11-26 01:11:43,101 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@429735ce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 01:11:43, skipping insertion in model container [2022-11-26 01:11:43,101 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 01:11:42" (2/3) ... [2022-11-26 01:11:43,101 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@429735ce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 01:11:43, skipping insertion in model container [2022-11-26 01:11:43,102 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 01:11:43" (3/3) ... [2022-11-26 01:11:43,103 INFO L112 eAbstractionObserver]: Analyzing ICFG Et3_true.c [2022-11-26 01:11:43,125 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-26 01:11:43,126 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2022-11-26 01:11:43,186 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-26 01:11:43,193 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;@3c6324ca, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-26 01:11:43,193 INFO L358 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2022-11-26 01:11:43,198 INFO L276 IsEmpty]: Start isEmpty. Operand has 29 states, 16 states have (on average 1.5) internal successors, (24), 23 states have internal predecessors, (24), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-11-26 01:11:43,206 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-26 01:11:43,206 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 01:11:43,207 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-11-26 01:11:43,208 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting randomErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [randomErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, randomErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, loopErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-26 01:11:43,214 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 01:11:43,214 INFO L85 PathProgramCache]: Analyzing trace with hash 74179687, now seen corresponding path program 1 times [2022-11-26 01:11:43,223 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 01:11:43,224 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1288953319] [2022-11-26 01:11:43,224 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 01:11:43,225 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 01:11:43,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 01:11:43,388 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 01:11:43,389 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 01:11:43,389 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1288953319] [2022-11-26 01:11:43,390 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1288953319] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 01:11:43,391 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 01:11:43,391 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-26 01:11:43,393 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [923038230] [2022-11-26 01:11:43,394 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 01:11:43,399 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-26 01:11:43,400 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 01:11:43,474 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-26 01:11:43,475 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-26 01:11:43,478 INFO L87 Difference]: Start difference. First operand has 29 states, 16 states have (on average 1.5) internal successors, (24), 23 states have internal predecessors, (24), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Second operand has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 01:11:43,569 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 01:11:43,572 INFO L93 Difference]: Finished difference Result 31 states and 35 transitions. [2022-11-26 01:11:43,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-26 01:11:43,579 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2022-11-26 01:11:43,580 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 01:11:43,589 INFO L225 Difference]: With dead ends: 31 [2022-11-26 01:11:43,592 INFO L226 Difference]: Without dead ends: 26 [2022-11-26 01:11:43,596 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-26 01:11:43,603 INFO L413 NwaCegarLoop]: 29 mSDtfsCounter, 4 mSDsluCounter, 25 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 54 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-26 01:11:43,604 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 54 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-26 01:11:43,624 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2022-11-26 01:11:43,648 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 24. [2022-11-26 01:11:43,649 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24 states, 14 states have (on average 1.4285714285714286) internal successors, (20), 19 states have internal predecessors, (20), 4 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-26 01:11:43,652 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 26 transitions. [2022-11-26 01:11:43,654 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 26 transitions. Word has length 5 [2022-11-26 01:11:43,655 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 01:11:43,656 INFO L495 AbstractCegarLoop]: Abstraction has 24 states and 26 transitions. [2022-11-26 01:11:43,656 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 01:11:43,656 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 26 transitions. [2022-11-26 01:11:43,658 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-11-26 01:11:43,658 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 01:11:43,658 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-11-26 01:11:43,659 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-26 01:11:43,660 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting randomErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [randomErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, randomErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, loopErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-26 01:11:43,661 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 01:11:43,662 INFO L85 PathProgramCache]: Analyzing trace with hash -1995396962, now seen corresponding path program 1 times [2022-11-26 01:11:43,663 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 01:11:43,663 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1554707189] [2022-11-26 01:11:43,663 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 01:11:43,665 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 01:11:43,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-26 01:11:43,705 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-26 01:11:43,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-26 01:11:43,739 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-11-26 01:11:43,740 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-11-26 01:11:43,742 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location randomErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 6 remaining) [2022-11-26 01:11:43,744 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location randomErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 6 remaining) [2022-11-26 01:11:43,745 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location loopErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 6 remaining) [2022-11-26 01:11:43,745 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location loopErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 6 remaining) [2022-11-26 01:11:43,745 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location loopErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 6 remaining) [2022-11-26 01:11:43,746 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location loopErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 6 remaining) [2022-11-26 01:11:43,746 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-26 01:11:43,750 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2022-11-26 01:11:43,756 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-26 01:11:43,776 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.11 01:11:43 BoogieIcfgContainer [2022-11-26 01:11:43,776 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-26 01:11:43,778 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-26 01:11:43,778 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-26 01:11:43,779 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-26 01:11:43,779 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 01:11:43" (3/4) ... [2022-11-26 01:11:43,781 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-11-26 01:11:43,829 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2aa2c0d2-f9a2-49a6-aae7-f087083bf6d6/bin/utaipan-ByfvJB40ur/witness.graphml [2022-11-26 01:11:43,829 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-26 01:11:43,833 INFO L158 Benchmark]: Toolchain (without parser) took 1391.37ms. Allocated memory is still 190.8MB. Free memory was 159.1MB in the beginning and 108.8MB in the end (delta: 50.3MB). Peak memory consumption was 50.3MB. Max. memory is 16.1GB. [2022-11-26 01:11:43,833 INFO L158 Benchmark]: CDTParser took 0.36ms. Allocated memory is still 134.2MB. Free memory is still 76.9MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-26 01:11:43,834 INFO L158 Benchmark]: CACSL2BoogieTranslator took 231.36ms. Allocated memory is still 190.8MB. Free memory was 158.7MB in the beginning and 149.2MB in the end (delta: 9.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-26 01:11:43,834 INFO L158 Benchmark]: Boogie Procedure Inliner took 35.75ms. Allocated memory is still 190.8MB. Free memory was 149.2MB in the beginning and 147.7MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-26 01:11:43,835 INFO L158 Benchmark]: Boogie Preprocessor took 21.03ms. Allocated memory is still 190.8MB. Free memory was 147.7MB in the beginning and 146.6MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-26 01:11:43,838 INFO L158 Benchmark]: RCFGBuilder took 361.64ms. Allocated memory is still 190.8MB. Free memory was 146.6MB in the beginning and 135.6MB in the end (delta: 11.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-26 01:11:43,840 INFO L158 Benchmark]: TraceAbstraction took 681.94ms. Allocated memory is still 190.8MB. Free memory was 135.1MB in the beginning and 110.4MB in the end (delta: 24.6MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2022-11-26 01:11:43,841 INFO L158 Benchmark]: Witness Printer took 51.55ms. Allocated memory is still 190.8MB. Free memory was 110.4MB in the beginning and 108.8MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-26 01:11:43,846 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.36ms. Allocated memory is still 134.2MB. Free memory is still 76.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 231.36ms. Allocated memory is still 190.8MB. Free memory was 158.7MB in the beginning and 149.2MB in the end (delta: 9.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 35.75ms. Allocated memory is still 190.8MB. Free memory was 149.2MB in the beginning and 147.7MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 21.03ms. Allocated memory is still 190.8MB. Free memory was 147.7MB in the beginning and 146.6MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 361.64ms. Allocated memory is still 190.8MB. Free memory was 146.6MB in the beginning and 135.6MB in the end (delta: 11.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 681.94ms. Allocated memory is still 190.8MB. Free memory was 135.1MB in the beginning and 110.4MB in the end (delta: 24.6MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * Witness Printer took 51.55ms. Allocated memory is still 190.8MB. Free memory was 110.4MB in the beginning and 108.8MB in the end (delta: 1.7MB). 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 - CounterExampleResult [Line: 32]: integer overflow possible integer overflow possible We found a FailurePath: [L22] int x = __VERIFIER_nondet_int(); [L23] int y = __VERIFIER_nondet_int(); [L24] int z = __VERIFIER_nondet_int(); [L25] CALL random() [L30] int x = __VERIFIER_nondet_int(); [L31] COND TRUE x < 0 VAL [x=-2147483648] [L32] -x VAL [x=-2147483648] - UnprovableResult [Line: 32]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 39]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 39]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 40]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 40]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 29 locations, 6 error locations. Started 1 CEGAR loops. OverallTime: 0.6s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 4 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 4 mSDsluCounter, 54 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 25 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 9 IncrementalHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 29 mSDtfsCounter, 9 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=29occurred in iteration=0, InterpolantAutomatonStates: 3, 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, 1 MinimizatonAttempts, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 11 NumberOfCodeBlocks, 11 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 4 ConstructedInterpolants, 0 QuantifiedInterpolants, 8 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2022-11-26 01:11:43,905 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2aa2c0d2-f9a2-49a6-aae7-f087083bf6d6/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(OVERFLOW)