./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/goblint-regression/06-symbeq_11a-equ_nr.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c76483d-5209-48df-b000-571196248ec8/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c76483d-5209-48df-b000-571196248ec8/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_8c76483d-5209-48df-b000-571196248ec8/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c76483d-5209-48df-b000-571196248ec8/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/goblint-regression/06-symbeq_11a-equ_nr.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c76483d-5209-48df-b000-571196248ec8/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_8c76483d-5209-48df-b000-571196248ec8/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 1ae344c6ba282c956275e824e33ce3fb7903cfcf4f1d8d86b2dd8809a46e14d8 --- 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 05:48:58,661 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 05:48:58,662 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 05:48:58,680 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 05:48:58,680 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 05:48:58,681 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 05:48:58,682 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 05:48:58,683 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 05:48:58,684 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 05:48:58,685 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 05:48:58,686 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 05:48:58,686 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 05:48:58,686 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 05:48:58,687 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 05:48:58,688 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 05:48:58,689 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 05:48:58,689 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 05:48:58,690 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 05:48:58,691 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 05:48:58,692 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 05:48:58,693 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 05:48:58,694 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 05:48:58,695 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 05:48:58,696 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 05:48:58,698 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 05:48:58,698 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 05:48:58,698 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 05:48:58,699 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 05:48:58,699 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 05:48:58,700 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 05:48:58,700 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 05:48:58,701 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 05:48:58,701 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 05:48:58,702 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 05:48:58,703 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 05:48:58,703 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 05:48:58,703 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 05:48:58,703 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 05:48:58,704 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 05:48:58,704 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 05:48:58,705 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 05:48:58,705 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c76483d-5209-48df-b000-571196248ec8/bin/utaipan-gh47qXpMRh/config/svcomp-Overflow-32bit-Taipan_Default.epf [2022-12-14 05:48:58,721 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 05:48:58,721 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 05:48:58,721 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 05:48:58,721 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 05:48:58,722 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 05:48:58,722 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 05:48:58,722 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 05:48:58,722 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 05:48:58,723 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 05:48:58,723 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-12-14 05:48:58,723 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 05:48:58,723 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 05:48:58,723 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-12-14 05:48:58,723 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-12-14 05:48:58,723 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 05:48:58,723 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-12-14 05:48:58,724 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-12-14 05:48:58,724 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-12-14 05:48:58,724 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 05:48:58,724 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-14 05:48:58,724 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-14 05:48:58,725 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 05:48:58,725 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-14 05:48:58,725 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 05:48:58,725 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 05:48:58,725 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 05:48:58,725 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 05:48:58,725 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-12-14 05:48:58,725 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-14 05:48:58,725 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 05:48:58,726 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 05:48:58,726 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 05:48:58,726 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 05:48:58,726 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 05:48:58,726 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 05:48:58,726 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 05:48:58,726 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-12-14 05:48:58,726 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 05:48:58,727 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 05:48:58,727 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-12-14 05:48:58,727 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 05:48:58,727 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 05:48:58,727 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 05:48:58,727 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_8c76483d-5209-48df-b000-571196248ec8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c76483d-5209-48df-b000-571196248ec8/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1ae344c6ba282c956275e824e33ce3fb7903cfcf4f1d8d86b2dd8809a46e14d8 [2022-12-14 05:48:58,892 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 05:48:58,911 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 05:48:58,913 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 05:48:58,914 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 05:48:58,915 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 05:48:58,916 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c76483d-5209-48df-b000-571196248ec8/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/goblint-regression/06-symbeq_11a-equ_nr.i [2022-12-14 05:49:01,530 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 05:49:01,696 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 05:49:01,697 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c76483d-5209-48df-b000-571196248ec8/sv-benchmarks/c/goblint-regression/06-symbeq_11a-equ_nr.i [2022-12-14 05:49:01,710 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c76483d-5209-48df-b000-571196248ec8/bin/utaipan-gh47qXpMRh/data/044ad4a11/4bc935a87f0c45a493682be8799abcf2/FLAG2ce2ece64 [2022-12-14 05:49:01,722 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c76483d-5209-48df-b000-571196248ec8/bin/utaipan-gh47qXpMRh/data/044ad4a11/4bc935a87f0c45a493682be8799abcf2 [2022-12-14 05:49:01,724 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 05:49:01,725 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 05:49:01,727 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 05:49:01,727 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 05:49:01,730 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 05:49:01,731 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 05:49:01" (1/1) ... [2022-12-14 05:49:01,731 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@64c6bbb9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:49:01, skipping insertion in model container [2022-12-14 05:49:01,732 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 05:49:01" (1/1) ... [2022-12-14 05:49:01,737 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 05:49:01,765 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 05:49:02,013 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 05:49:02,022 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 05:49:02,051 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 05:49:02,081 INFO L208 MainTranslator]: Completed translation [2022-12-14 05:49:02,081 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:49:02 WrapperNode [2022-12-14 05:49:02,081 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 05:49:02,082 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 05:49:02,082 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 05:49:02,082 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 05:49:02,088 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:49:02" (1/1) ... [2022-12-14 05:49:02,098 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:49:02" (1/1) ... [2022-12-14 05:49:02,112 INFO L138 Inliner]: procedures = 265, calls = 29, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 65 [2022-12-14 05:49:02,112 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 05:49:02,112 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 05:49:02,113 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 05:49:02,113 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 05:49:02,119 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:49:02" (1/1) ... [2022-12-14 05:49:02,119 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:49:02" (1/1) ... [2022-12-14 05:49:02,121 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:49:02" (1/1) ... [2022-12-14 05:49:02,121 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:49:02" (1/1) ... [2022-12-14 05:49:02,125 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:49:02" (1/1) ... [2022-12-14 05:49:02,126 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:49:02" (1/1) ... [2022-12-14 05:49:02,127 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:49:02" (1/1) ... [2022-12-14 05:49:02,128 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:49:02" (1/1) ... [2022-12-14 05:49:02,129 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 05:49:02,130 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 05:49:02,130 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 05:49:02,130 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 05:49:02,131 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:49:02" (1/1) ... [2022-12-14 05:49:02,136 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 05:49:02,145 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c76483d-5209-48df-b000-571196248ec8/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 05:49:02,155 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c76483d-5209-48df-b000-571196248ec8/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 05:49:02,157 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c76483d-5209-48df-b000-571196248ec8/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 05:49:02,184 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-14 05:49:02,184 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-14 05:49:02,184 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-14 05:49:02,184 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-12-14 05:49:02,184 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 05:49:02,184 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-12-14 05:49:02,184 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-12-14 05:49:02,184 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-14 05:49:02,184 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 05:49:02,184 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 05:49:02,185 WARN L209 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-12-14 05:49:02,282 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 05:49:02,283 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 05:49:02,429 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 05:49:02,436 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 05:49:02,436 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-14 05:49:02,437 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 05:49:02 BoogieIcfgContainer [2022-12-14 05:49:02,437 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 05:49:02,439 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 05:49:02,439 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 05:49:02,441 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 05:49:02,441 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 05:49:01" (1/3) ... [2022-12-14 05:49:02,442 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2e15293c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 05:49:02, skipping insertion in model container [2022-12-14 05:49:02,442 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:49:02" (2/3) ... [2022-12-14 05:49:02,442 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2e15293c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 05:49:02, skipping insertion in model container [2022-12-14 05:49:02,442 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 05:49:02" (3/3) ... [2022-12-14 05:49:02,443 INFO L112 eAbstractionObserver]: Analyzing ICFG 06-symbeq_11a-equ_nr.i [2022-12-14 05:49:02,449 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-12-14 05:49:02,457 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 05:49:02,457 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2022-12-14 05:49:02,457 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-14 05:49:02,487 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-12-14 05:49:02,510 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-14 05:49:02,520 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 84 places, 81 transitions, 167 flow [2022-12-14 05:49:02,522 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 84 places, 81 transitions, 167 flow [2022-12-14 05:49:02,524 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 84 places, 81 transitions, 167 flow [2022-12-14 05:49:02,555 INFO L130 PetriNetUnfolder]: 1/80 cut-off events. [2022-12-14 05:49:02,555 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-14 05:49:02,558 INFO L83 FinitePrefix]: Finished finitePrefix Result has 84 conditions, 80 events. 1/80 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 42 event pairs, 0 based on Foata normal form. 0/75 useless extension candidates. Maximal degree in co-relation 60. Up to 2 conditions per place. [2022-12-14 05:49:02,559 INFO L119 LiptonReduction]: Number of co-enabled transitions 168 [2022-12-14 05:49:07,543 INFO L134 LiptonReduction]: Checked pairs total: 319 [2022-12-14 05:49:07,543 INFO L136 LiptonReduction]: Total number of compositions: 95 [2022-12-14 05:49:07,549 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 17 places, 13 transitions, 31 flow [2022-12-14 05:49:07,555 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 6 states, 1 states have (on average 5.0) internal successors, (5), 5 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 05:49:07,567 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 05:49:07,571 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;@41e6064a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 05:49:07,571 INFO L358 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2022-12-14 05:49:07,572 INFO L276 IsEmpty]: Start isEmpty. Operand has 6 states, 1 states have (on average 5.0) internal successors, (5), 5 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 05:49:07,576 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2 [2022-12-14 05:49:07,576 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 05:49:07,576 INFO L195 NwaCegarLoop]: trace histogram [1] [2022-12-14 05:49:07,576 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 2 more)] === [2022-12-14 05:49:07,580 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 05:49:07,580 INFO L85 PathProgramCache]: Analyzing trace with hash 293, now seen corresponding path program 1 times [2022-12-14 05:49:07,588 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 05:49:07,589 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1820984992] [2022-12-14 05:49:07,589 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 05:49:07,589 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 05:49:07,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 05:49:07,663 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 05:49:07,664 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 05:49:07,664 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1820984992] [2022-12-14 05:49:07,664 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1820984992] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 05:49:07,664 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 05:49:07,665 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2022-12-14 05:49:07,665 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [148355128] [2022-12-14 05:49:07,666 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 05:49:07,669 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-14 05:49:07,669 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 05:49:07,685 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-14 05:49:07,685 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-14 05:49:07,686 INFO L87 Difference]: Start difference. First operand has 6 states, 1 states have (on average 5.0) internal successors, (5), 5 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 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 05:49:07,704 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 05:49:07,705 INFO L93 Difference]: Finished difference Result 3 states and 2 transitions. [2022-12-14 05:49:07,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-14 05:49:07,707 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 1 [2022-12-14 05:49:07,707 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 05:49:07,713 INFO L225 Difference]: With dead ends: 3 [2022-12-14 05:49:07,713 INFO L226 Difference]: Without dead ends: 2 [2022-12-14 05:49:07,714 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 0 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-14 05:49:07,718 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 05:49:07,719 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 0 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 05:49:07,733 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2 states. [2022-12-14 05:49:07,741 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2 to 2. [2022-12-14 05:49:07,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 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 05:49:07,742 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 1 transitions. [2022-12-14 05:49:07,743 INFO L78 Accepts]: Start accepts. Automaton has 2 states and 1 transitions. Word has length 1 [2022-12-14 05:49:07,744 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 05:49:07,744 INFO L495 AbstractCegarLoop]: Abstraction has 2 states and 1 transitions. [2022-12-14 05:49:07,744 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 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 05:49:07,744 INFO L276 IsEmpty]: Start isEmpty. Operand 2 states and 1 transitions. [2022-12-14 05:49:07,744 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2 [2022-12-14 05:49:07,744 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 05:49:07,745 INFO L195 NwaCegarLoop]: trace histogram [1] [2022-12-14 05:49:07,745 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-14 05:49:07,745 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 2 more)] === [2022-12-14 05:49:07,752 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 05:49:07,752 INFO L85 PathProgramCache]: Analyzing trace with hash 295, now seen corresponding path program 1 times [2022-12-14 05:49:07,752 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 05:49:07,752 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1426915414] [2022-12-14 05:49:07,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 05:49:07,752 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 05:49:07,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-14 05:49:07,782 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-14 05:49:07,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-14 05:49:07,805 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-12-14 05:49:07,805 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-12-14 05:49:07,806 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 5 remaining) [2022-12-14 05:49:07,807 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 5 remaining) [2022-12-14 05:49:07,808 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 5 remaining) [2022-12-14 05:49:07,808 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 5 remaining) [2022-12-14 05:49:07,808 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 5 remaining) [2022-12-14 05:49:07,808 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-14 05:49:07,810 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2022-12-14 05:49:07,813 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-14 05:49:07,813 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-14 05:49:07,824 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.12 05:49:07 BasicIcfg [2022-12-14 05:49:07,824 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-14 05:49:07,825 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-14 05:49:07,825 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-14 05:49:07,825 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-14 05:49:07,825 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 05:49:02" (3/4) ... [2022-12-14 05:49:07,827 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-12-14 05:49:07,848 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c76483d-5209-48df-b000-571196248ec8/bin/utaipan-gh47qXpMRh/witness.graphml [2022-12-14 05:49:07,848 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-14 05:49:07,848 INFO L158 Benchmark]: Toolchain (without parser) took 6123.01ms. Allocated memory was 140.5MB in the beginning and 169.9MB in the end (delta: 29.4MB). Free memory was 80.9MB in the beginning and 128.9MB in the end (delta: -48.0MB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 05:49:07,849 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 113.2MB. Free memory is still 71.1MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 05:49:07,849 INFO L158 Benchmark]: CACSL2BoogieTranslator took 354.82ms. Allocated memory is still 140.5MB. Free memory was 80.7MB in the beginning and 94.8MB in the end (delta: -14.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-12-14 05:49:07,849 INFO L158 Benchmark]: Boogie Procedure Inliner took 30.07ms. Allocated memory is still 140.5MB. Free memory was 94.8MB in the beginning and 92.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 05:49:07,849 INFO L158 Benchmark]: Boogie Preprocessor took 17.13ms. Allocated memory is still 140.5MB. Free memory was 92.7MB in the beginning and 91.3MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 05:49:07,850 INFO L158 Benchmark]: RCFGBuilder took 307.19ms. Allocated memory is still 140.5MB. Free memory was 91.3MB in the beginning and 77.8MB in the end (delta: 13.5MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-12-14 05:49:07,850 INFO L158 Benchmark]: TraceAbstraction took 5385.60ms. Allocated memory was 140.5MB in the beginning and 169.9MB in the end (delta: 29.4MB). Free memory was 77.1MB in the beginning and 131.0MB in the end (delta: -53.9MB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 05:49:07,850 INFO L158 Benchmark]: Witness Printer took 23.26ms. Allocated memory is still 169.9MB. Free memory was 131.0MB in the beginning and 128.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 05:49:07,852 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 113.2MB. Free memory is still 71.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 354.82ms. Allocated memory is still 140.5MB. Free memory was 80.7MB in the beginning and 94.8MB in the end (delta: -14.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 30.07ms. Allocated memory is still 140.5MB. Free memory was 94.8MB in the beginning and 92.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 17.13ms. Allocated memory is still 140.5MB. Free memory was 92.7MB in the beginning and 91.3MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 307.19ms. Allocated memory is still 140.5MB. Free memory was 91.3MB in the beginning and 77.8MB in the end (delta: 13.5MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 5385.60ms. Allocated memory was 140.5MB in the beginning and 169.9MB in the end (delta: 29.4MB). Free memory was 77.1MB in the beginning and 131.0MB in the end (delta: -53.9MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 23.26ms. Allocated memory is still 169.9MB. Free memory was 131.0MB in the beginning and 128.9MB 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: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 5.0s, 84 PlacesBefore, 17 PlacesAfterwards, 81 TransitionsBefore, 13 TransitionsAfterwards, 168 CoEnabledTransitionPairs, 8 FixpointIterations, 75 TrivialSequentialCompositions, 13 ConcurrentSequentialCompositions, 6 TrivialYvCompositions, 0 ConcurrentYvCompositions, 1 ChoiceCompositions, 95 TotalNumberOfCompositions, 319 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 229, independent: 165, independent conditional: 0, independent unconditional: 165, dependent: 64, dependent conditional: 0, dependent unconditional: 64, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 119, independent: 107, independent conditional: 0, independent unconditional: 107, dependent: 12, dependent conditional: 0, dependent unconditional: 12, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 119, independent: 103, independent conditional: 0, independent unconditional: 103, dependent: 16, dependent conditional: 0, dependent unconditional: 16, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 16, independent: 4, independent conditional: 0, independent unconditional: 4, dependent: 12, dependent conditional: 0, dependent unconditional: 12, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 58, independent: 10, independent conditional: 0, independent unconditional: 10, dependent: 48, dependent conditional: 0, dependent unconditional: 48, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 229, independent: 58, independent conditional: 0, independent unconditional: 58, dependent: 52, dependent conditional: 0, dependent unconditional: 52, unknown: 119, unknown conditional: 0, unknown unconditional: 119] , Statistics on independence cache: Total cache size (in pairs): 10, Positive cache size: 6, Positive conditional cache size: 0, Positive unconditional cache size: 6, Negative cache size: 4, Negative conditional cache size: 0, Negative unconditional cache size: 4, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - 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: 1010]: integer overflow possible integer overflow possible We found a FailurePath: [L989-L993] struct s { int datum; struct q inside; pthread_mutex_t mutex; } A, B; [L1003] int x = __VERIFIER_nondet_int(); [L1004] pthread_t id; [L1005] struct s *s; [L1006] int *d; [L1007] pthread_mutex_t *m; [L1008] COND TRUE \read(x) [L1009] s = &A [L1010] x++ VAL [A={1:0}, B={2:0}, id={3:0}, s={1:0}, x=2147483647, x++=2147483647] - UnprovableResult [Line: 1010]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 1013]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 1013]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 1017]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 90 locations, 5 error locations. Started 1 CEGAR loops. OverallTime: 5.3s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 5.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2 IncrementalHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 0 mSDtfsCounter, 2 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 0 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=6occurred in iteration=0, InterpolantAutomatonStates: 2, 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, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 2 NumberOfCodeBlocks, 2 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 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! [2022-12-14 05:49:07,865 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c76483d-5209-48df-b000-571196248ec8/bin/utaipan-gh47qXpMRh/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)