./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/ldv-memsafety/memleaks_test22_2-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 4e7fbc69 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ffe92ed-b275-489e-b740-0d2d70277d0c/bin/utaipan-Q6hlc19bkW/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ffe92ed-b275-489e-b740-0d2d70277d0c/bin/utaipan-Q6hlc19bkW/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ffe92ed-b275-489e-b740-0d2d70277d0c/bin/utaipan-Q6hlc19bkW/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ffe92ed-b275-489e-b740-0d2d70277d0c/bin/utaipan-Q6hlc19bkW/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-memsafety/memleaks_test22_2-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ffe92ed-b275-489e-b740-0d2d70277d0c/bin/utaipan-Q6hlc19bkW/config/svcomp-Overflow-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ffe92ed-b275-489e-b740-0d2d70277d0c/bin/utaipan-Q6hlc19bkW --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 beb004be26a355c223f1a45515f5377c37b18fc46f09e77727f89b964ae9789d --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-4e7fbc6 [2022-11-23 14:57:35,056 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-23 14:57:35,058 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-23 14:57:35,077 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-23 14:57:35,078 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-23 14:57:35,079 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-23 14:57:35,080 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-23 14:57:35,082 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-23 14:57:35,083 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-23 14:57:35,084 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-23 14:57:35,086 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-23 14:57:35,087 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-23 14:57:35,087 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-23 14:57:35,088 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-23 14:57:35,090 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-23 14:57:35,091 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-23 14:57:35,092 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-23 14:57:35,093 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-23 14:57:35,095 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-23 14:57:35,097 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-23 14:57:35,099 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-23 14:57:35,100 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-23 14:57:35,101 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-23 14:57:35,102 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-23 14:57:35,106 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-23 14:57:35,107 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-23 14:57:35,107 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-23 14:57:35,108 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-23 14:57:35,109 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-23 14:57:35,110 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-23 14:57:35,110 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-23 14:57:35,111 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-23 14:57:35,112 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-23 14:57:35,113 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-23 14:57:35,114 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-23 14:57:35,114 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-23 14:57:35,115 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-23 14:57:35,116 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-23 14:57:35,116 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-23 14:57:35,117 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-23 14:57:35,118 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-23 14:57:35,119 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ffe92ed-b275-489e-b740-0d2d70277d0c/bin/utaipan-Q6hlc19bkW/config/svcomp-Overflow-32bit-Taipan_Default.epf [2022-11-23 14:57:35,142 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-23 14:57:35,143 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-23 14:57:35,143 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-23 14:57:35,143 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-23 14:57:35,144 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-23 14:57:35,144 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-23 14:57:35,145 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-23 14:57:35,145 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-23 14:57:35,145 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-23 14:57:35,145 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-23 14:57:35,146 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-23 14:57:35,146 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-23 14:57:35,146 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-23 14:57:35,146 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-23 14:57:35,147 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-23 14:57:35,147 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-23 14:57:35,147 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-23 14:57:35,147 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-23 14:57:35,148 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-23 14:57:35,148 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-23 14:57:35,149 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-23 14:57:35,149 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-23 14:57:35,149 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-23 14:57:35,149 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-23 14:57:35,149 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-23 14:57:35,150 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-23 14:57:35,150 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-23 14:57:35,150 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-23 14:57:35,150 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-23 14:57:35,151 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-23 14:57:35,151 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-23 14:57:35,151 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-23 14:57:35,151 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-23 14:57:35,152 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-23 14:57:35,152 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 14:57:35,152 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-23 14:57:35,152 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-23 14:57:35,153 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-23 14:57:35,153 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-23 14:57:35,153 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-23 14:57:35,153 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-23 14:57:35,154 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-23 14:57:35,154 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-23 14:57:35,154 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_5ffe92ed-b275-489e-b740-0d2d70277d0c/bin/utaipan-Q6hlc19bkW/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ffe92ed-b275-489e-b740-0d2d70277d0c/bin/utaipan-Q6hlc19bkW Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> beb004be26a355c223f1a45515f5377c37b18fc46f09e77727f89b964ae9789d [2022-11-23 14:57:35,379 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-23 14:57:35,402 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-23 14:57:35,404 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-23 14:57:35,406 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-23 14:57:35,406 INFO L275 PluginConnector]: CDTParser initialized [2022-11-23 14:57:35,408 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ffe92ed-b275-489e-b740-0d2d70277d0c/bin/utaipan-Q6hlc19bkW/../../sv-benchmarks/c/ldv-memsafety/memleaks_test22_2-2.i [2022-11-23 14:57:38,498 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-23 14:57:38,780 INFO L351 CDTParser]: Found 1 translation units. [2022-11-23 14:57:38,785 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ffe92ed-b275-489e-b740-0d2d70277d0c/sv-benchmarks/c/ldv-memsafety/memleaks_test22_2-2.i [2022-11-23 14:57:38,798 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ffe92ed-b275-489e-b740-0d2d70277d0c/bin/utaipan-Q6hlc19bkW/data/d95637dfb/68f8a320e5874506a2a261d77d793e6c/FLAG3fc6d943d [2022-11-23 14:57:38,813 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ffe92ed-b275-489e-b740-0d2d70277d0c/bin/utaipan-Q6hlc19bkW/data/d95637dfb/68f8a320e5874506a2a261d77d793e6c [2022-11-23 14:57:38,816 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-23 14:57:38,817 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-23 14:57:38,819 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-23 14:57:38,819 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-23 14:57:38,823 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-23 14:57:38,824 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:57:38" (1/1) ... [2022-11-23 14:57:38,825 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4ba4befe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:57:38, skipping insertion in model container [2022-11-23 14:57:38,825 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:57:38" (1/1) ... [2022-11-23 14:57:38,833 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-23 14:57:38,870 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-23 14:57:39,317 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 14:57:39,340 INFO L203 MainTranslator]: Completed pre-run [2022-11-23 14:57:39,399 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 14:57:39,435 INFO L208 MainTranslator]: Completed translation [2022-11-23 14:57:39,435 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:57:39 WrapperNode [2022-11-23 14:57:39,436 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-23 14:57:39,437 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-23 14:57:39,437 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-23 14:57:39,437 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-23 14:57:39,445 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:57:39" (1/1) ... [2022-11-23 14:57:39,464 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:57:39" (1/1) ... [2022-11-23 14:57:39,490 INFO L138 Inliner]: procedures = 164, calls = 71, calls flagged for inlining = 23, calls inlined = 17, statements flattened = 121 [2022-11-23 14:57:39,491 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-23 14:57:39,492 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-23 14:57:39,492 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-23 14:57:39,492 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-23 14:57:39,502 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:57:39" (1/1) ... [2022-11-23 14:57:39,502 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:57:39" (1/1) ... [2022-11-23 14:57:39,506 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:57:39" (1/1) ... [2022-11-23 14:57:39,506 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:57:39" (1/1) ... [2022-11-23 14:57:39,517 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:57:39" (1/1) ... [2022-11-23 14:57:39,521 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:57:39" (1/1) ... [2022-11-23 14:57:39,523 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:57:39" (1/1) ... [2022-11-23 14:57:39,525 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:57:39" (1/1) ... [2022-11-23 14:57:39,528 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-23 14:57:39,529 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-23 14:57:39,529 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-23 14:57:39,529 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-23 14:57:39,530 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:57:39" (1/1) ... [2022-11-23 14:57:39,537 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 14:57:39,551 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ffe92ed-b275-489e-b740-0d2d70277d0c/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 14:57:39,567 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ffe92ed-b275-489e-b740-0d2d70277d0c/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-23 14:57:39,574 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ffe92ed-b275-489e-b740-0d2d70277d0c/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-23 14:57:39,607 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-23 14:57:39,608 INFO L130 BoogieDeclarations]: Found specification of procedure LDV_INIT_LIST_HEAD [2022-11-23 14:57:39,608 INFO L138 BoogieDeclarations]: Found implementation of procedure LDV_INIT_LIST_HEAD [2022-11-23 14:57:39,608 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-23 14:57:39,608 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-23 14:57:39,609 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_put [2022-11-23 14:57:39,609 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_put [2022-11-23 14:57:39,609 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-23 14:57:39,609 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-23 14:57:39,609 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-23 14:57:39,610 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-23 14:57:39,610 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-23 14:57:39,610 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-23 14:57:39,610 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-23 14:57:39,610 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-23 14:57:39,610 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-23 14:57:39,767 INFO L235 CfgBuilder]: Building ICFG [2022-11-23 14:57:39,769 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-23 14:57:40,128 INFO L276 CfgBuilder]: Performing block encoding [2022-11-23 14:57:40,297 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-23 14:57:40,298 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-23 14:57:40,300 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:57:40 BoogieIcfgContainer [2022-11-23 14:57:40,301 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-23 14:57:40,303 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-23 14:57:40,303 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-23 14:57:40,307 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-23 14:57:40,307 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 02:57:38" (1/3) ... [2022-11-23 14:57:40,308 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2aba6fff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:57:40, skipping insertion in model container [2022-11-23 14:57:40,308 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:57:39" (2/3) ... [2022-11-23 14:57:40,308 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2aba6fff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:57:40, skipping insertion in model container [2022-11-23 14:57:40,309 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:57:40" (3/3) ... [2022-11-23 14:57:40,310 INFO L112 eAbstractionObserver]: Analyzing ICFG memleaks_test22_2-2.i [2022-11-23 14:57:40,330 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-23 14:57:40,330 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2022-11-23 14:57:40,381 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-23 14:57:40,389 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;@2eb633b9, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-23 14:57:40,389 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-11-23 14:57:40,394 INFO L276 IsEmpty]: Start isEmpty. Operand has 33 states, 21 states have (on average 1.4761904761904763) internal successors, (31), 26 states have internal predecessors, (31), 4 states have call successors, (4), 3 states have call predecessors, (4), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-11-23 14:57:40,402 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-11-23 14:57:40,402 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:57:40,409 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:57:40,410 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ldv_kobject_putErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-11-23 14:57:40,416 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:57:40,416 INFO L85 PathProgramCache]: Analyzing trace with hash 442991665, now seen corresponding path program 1 times [2022-11-23 14:57:40,427 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:57:40,427 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [265215472] [2022-11-23 14:57:40,428 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:57:40,428 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:57:40,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:57:40,839 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 14:57:40,840 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:57:40,840 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [265215472] [2022-11-23 14:57:40,841 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [265215472] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:57:40,841 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:57:40,842 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-23 14:57:40,843 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1421922613] [2022-11-23 14:57:40,844 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:57:40,849 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-23 14:57:40,849 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:57:40,879 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-23 14:57:40,880 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-23 14:57:40,882 INFO L87 Difference]: Start difference. First operand has 33 states, 21 states have (on average 1.4761904761904763) internal successors, (31), 26 states have internal predecessors, (31), 4 states have call successors, (4), 3 states have call predecessors, (4), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Second operand has 4 states, 4 states have (on average 1.75) internal successors, (7), 4 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-23 14:57:41,013 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:57:41,014 INFO L93 Difference]: Finished difference Result 62 states and 72 transitions. [2022-11-23 14:57:41,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-23 14:57:41,016 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 1.75) internal successors, (7), 4 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 9 [2022-11-23 14:57:41,017 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:57:41,025 INFO L225 Difference]: With dead ends: 62 [2022-11-23 14:57:41,025 INFO L226 Difference]: Without dead ends: 39 [2022-11-23 14:57:41,028 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-23 14:57:41,032 INFO L413 NwaCegarLoop]: 32 mSDtfsCounter, 9 mSDsluCounter, 56 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 88 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-23 14:57:41,033 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 88 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-23 14:57:41,051 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2022-11-23 14:57:41,071 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 33. [2022-11-23 14:57:41,073 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33 states, 22 states have (on average 1.4545454545454546) internal successors, (32), 27 states have internal predecessors, (32), 4 states have call successors, (4), 3 states have call predecessors, (4), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-23 14:57:41,074 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 39 transitions. [2022-11-23 14:57:41,076 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 39 transitions. Word has length 9 [2022-11-23 14:57:41,076 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:57:41,077 INFO L495 AbstractCegarLoop]: Abstraction has 33 states and 39 transitions. [2022-11-23 14:57:41,077 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1.75) internal successors, (7), 4 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-23 14:57:41,077 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 39 transitions. [2022-11-23 14:57:41,078 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-11-23 14:57:41,078 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:57:41,079 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:57:41,079 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-23 14:57:41,079 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_kobject_putErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ldv_kobject_putErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-11-23 14:57:41,080 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:57:41,080 INFO L85 PathProgramCache]: Analyzing trace with hash -358829788, now seen corresponding path program 1 times [2022-11-23 14:57:41,081 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:57:41,081 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [595898086] [2022-11-23 14:57:41,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:57:41,082 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:57:41,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:57:41,396 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 14:57:41,397 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:57:41,397 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [595898086] [2022-11-23 14:57:41,398 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [595898086] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:57:41,398 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:57:41,398 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-23 14:57:41,398 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1479810307] [2022-11-23 14:57:41,399 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:57:41,400 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-23 14:57:41,400 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:57:41,401 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-23 14:57:41,401 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-23 14:57:41,402 INFO L87 Difference]: Start difference. First operand 33 states and 39 transitions. Second operand has 6 states, 6 states have (on average 1.6666666666666667) internal successors, (10), 5 states have internal predecessors, (10), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-23 14:57:41,519 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:57:41,519 INFO L93 Difference]: Finished difference Result 51 states and 59 transitions. [2022-11-23 14:57:41,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-23 14:57:41,520 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 1.6666666666666667) internal successors, (10), 5 states have internal predecessors, (10), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 13 [2022-11-23 14:57:41,520 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:57:41,522 INFO L225 Difference]: With dead ends: 51 [2022-11-23 14:57:41,522 INFO L226 Difference]: Without dead ends: 33 [2022-11-23 14:57:41,523 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-11-23 14:57:41,525 INFO L413 NwaCegarLoop]: 26 mSDtfsCounter, 9 mSDsluCounter, 94 mSDsCounter, 0 mSdLazyCounter, 66 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 120 SdHoareTripleChecker+Invalid, 70 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 66 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-23 14:57:41,525 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 120 Invalid, 70 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 66 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-23 14:57:41,526 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2022-11-23 14:57:41,530 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 31. [2022-11-23 14:57:41,530 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31 states, 20 states have (on average 1.45) internal successors, (29), 25 states have internal predecessors, (29), 4 states have call successors, (4), 3 states have call predecessors, (4), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-23 14:57:41,531 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 36 transitions. [2022-11-23 14:57:41,532 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 36 transitions. Word has length 13 [2022-11-23 14:57:41,532 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:57:41,532 INFO L495 AbstractCegarLoop]: Abstraction has 31 states and 36 transitions. [2022-11-23 14:57:41,532 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 1.6666666666666667) internal successors, (10), 5 states have internal predecessors, (10), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-23 14:57:41,533 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 36 transitions. [2022-11-23 14:57:41,533 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-11-23 14:57:41,533 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:57:41,534 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:57:41,534 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-23 14:57:41,534 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ldv_kobject_putErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-11-23 14:57:41,535 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:57:41,535 INFO L85 PathProgramCache]: Analyzing trace with hash -1546671968, now seen corresponding path program 1 times [2022-11-23 14:57:41,535 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:57:41,535 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [104132170] [2022-11-23 14:57:41,536 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:57:41,536 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:57:41,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:57:41,740 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 14:57:41,740 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:57:41,741 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [104132170] [2022-11-23 14:57:41,741 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [104132170] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:57:41,741 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:57:41,741 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-23 14:57:41,742 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1197357483] [2022-11-23 14:57:41,742 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:57:41,742 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-23 14:57:41,743 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:57:41,743 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-23 14:57:41,744 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-23 14:57:41,744 INFO L87 Difference]: Start difference. First operand 31 states and 36 transitions. Second operand has 6 states, 6 states have (on average 1.6666666666666667) internal successors, (10), 6 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-23 14:57:41,877 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:57:41,877 INFO L93 Difference]: Finished difference Result 55 states and 64 transitions. [2022-11-23 14:57:41,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-23 14:57:41,878 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 1.6666666666666667) internal successors, (10), 6 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 12 [2022-11-23 14:57:41,878 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:57:41,879 INFO L225 Difference]: With dead ends: 55 [2022-11-23 14:57:41,879 INFO L226 Difference]: Without dead ends: 40 [2022-11-23 14:57:41,880 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2022-11-23 14:57:41,881 INFO L413 NwaCegarLoop]: 25 mSDtfsCounter, 29 mSDsluCounter, 81 mSDsCounter, 0 mSdLazyCounter, 59 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 106 SdHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 59 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-23 14:57:41,882 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [31 Valid, 106 Invalid, 66 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 59 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-23 14:57:41,883 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2022-11-23 14:57:41,889 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 34. [2022-11-23 14:57:41,889 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34 states, 23 states have (on average 1.391304347826087) internal successors, (32), 28 states have internal predecessors, (32), 4 states have call successors, (4), 3 states have call predecessors, (4), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-23 14:57:41,890 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 39 transitions. [2022-11-23 14:57:41,890 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 39 transitions. Word has length 12 [2022-11-23 14:57:41,891 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:57:41,891 INFO L495 AbstractCegarLoop]: Abstraction has 34 states and 39 transitions. [2022-11-23 14:57:41,891 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 1.6666666666666667) internal successors, (10), 6 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-23 14:57:41,891 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 39 transitions. [2022-11-23 14:57:41,892 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-11-23 14:57:41,892 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:57:41,892 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:57:41,893 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-23 14:57:41,893 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ldv_kobject_putErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-11-23 14:57:41,893 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:57:41,894 INFO L85 PathProgramCache]: Analyzing trace with hash 1190870089, now seen corresponding path program 1 times [2022-11-23 14:57:41,894 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:57:41,894 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [560842578] [2022-11-23 14:57:41,894 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:57:41,895 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:57:41,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:57:42,025 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 14:57:42,026 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:57:42,028 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [560842578] [2022-11-23 14:57:42,028 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [560842578] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:57:42,029 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:57:42,030 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-23 14:57:42,030 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1591868117] [2022-11-23 14:57:42,030 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:57:42,033 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-23 14:57:42,033 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:57:42,034 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-23 14:57:42,035 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-23 14:57:42,036 INFO L87 Difference]: Start difference. First operand 34 states and 39 transitions. Second operand has 5 states, 5 states have (on average 2.4) internal successors, (12), 5 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-23 14:57:42,145 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:57:42,146 INFO L93 Difference]: Finished difference Result 53 states and 60 transitions. [2022-11-23 14:57:42,147 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-23 14:57:42,147 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.4) internal successors, (12), 5 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 14 [2022-11-23 14:57:42,148 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:57:42,148 INFO L225 Difference]: With dead ends: 53 [2022-11-23 14:57:42,148 INFO L226 Difference]: Without dead ends: 31 [2022-11-23 14:57:42,149 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-11-23 14:57:42,150 INFO L413 NwaCegarLoop]: 24 mSDtfsCounter, 37 mSDsluCounter, 39 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 63 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-23 14:57:42,150 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [37 Valid, 63 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-23 14:57:42,151 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2022-11-23 14:57:42,156 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2022-11-23 14:57:42,157 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31 states, 20 states have (on average 1.35) internal successors, (27), 24 states have internal predecessors, (27), 4 states have call successors, (4), 3 states have call predecessors, (4), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-23 14:57:42,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 34 transitions. [2022-11-23 14:57:42,161 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 34 transitions. Word has length 14 [2022-11-23 14:57:42,162 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:57:42,162 INFO L495 AbstractCegarLoop]: Abstraction has 31 states and 34 transitions. [2022-11-23 14:57:42,163 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.4) internal successors, (12), 5 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-23 14:57:42,163 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 34 transitions. [2022-11-23 14:57:42,164 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-11-23 14:57:42,164 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:57:42,164 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:57:42,164 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-23 14:57:42,165 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ldv_kobject_putErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-11-23 14:57:42,165 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:57:42,166 INFO L85 PathProgramCache]: Analyzing trace with hash -1803696027, now seen corresponding path program 1 times [2022-11-23 14:57:42,166 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:57:42,166 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [552058059] [2022-11-23 14:57:42,167 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:57:42,167 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:57:42,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:57:42,352 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 14:57:42,353 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:57:42,353 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [552058059] [2022-11-23 14:57:42,353 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [552058059] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:57:42,353 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:57:42,353 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 14:57:42,354 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [983997515] [2022-11-23 14:57:42,354 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:57:42,354 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 14:57:42,355 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:57:42,356 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 14:57:42,359 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 14:57:42,359 INFO L87 Difference]: Start difference. First operand 31 states and 34 transitions. Second operand has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-23 14:57:42,408 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:57:42,408 INFO L93 Difference]: Finished difference Result 56 states and 62 transitions. [2022-11-23 14:57:42,409 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 14:57:42,409 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 17 [2022-11-23 14:57:42,410 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:57:42,411 INFO L225 Difference]: With dead ends: 56 [2022-11-23 14:57:42,412 INFO L226 Difference]: Without dead ends: 32 [2022-11-23 14:57:42,417 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 14:57:42,418 INFO L413 NwaCegarLoop]: 25 mSDtfsCounter, 0 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 49 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-23 14:57:42,419 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 49 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-23 14:57:42,422 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2022-11-23 14:57:42,431 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 32. [2022-11-23 14:57:42,432 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32 states, 21 states have (on average 1.3333333333333333) internal successors, (28), 25 states have internal predecessors, (28), 4 states have call successors, (4), 3 states have call predecessors, (4), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-23 14:57:42,434 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 35 transitions. [2022-11-23 14:57:42,435 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 35 transitions. Word has length 17 [2022-11-23 14:57:42,435 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:57:42,435 INFO L495 AbstractCegarLoop]: Abstraction has 32 states and 35 transitions. [2022-11-23 14:57:42,436 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-23 14:57:42,436 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 35 transitions. [2022-11-23 14:57:42,437 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-11-23 14:57:42,437 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:57:42,437 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:57:42,438 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-23 14:57:42,438 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ldv_kobject_putErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-11-23 14:57:42,439 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:57:42,439 INFO L85 PathProgramCache]: Analyzing trace with hash 187744588, now seen corresponding path program 1 times [2022-11-23 14:57:42,439 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:57:42,439 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [121308278] [2022-11-23 14:57:42,439 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:57:42,440 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:57:42,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:57:42,634 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 14:57:42,635 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:57:42,635 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [121308278] [2022-11-23 14:57:42,635 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [121308278] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 14:57:42,635 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1552857585] [2022-11-23 14:57:42,636 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:57:42,636 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 14:57:42,636 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ffe92ed-b275-489e-b740-0d2d70277d0c/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 14:57:42,642 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ffe92ed-b275-489e-b740-0d2d70277d0c/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 14:57:42,662 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ffe92ed-b275-489e-b740-0d2d70277d0c/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-23 14:57:42,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:57:42,780 INFO L263 TraceCheckSpWp]: Trace formula consists of 193 conjuncts, 82 conjunts are in the unsatisfiable core [2022-11-23 14:57:42,792 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 14:57:43,018 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-23 14:57:43,091 WARN L859 $PredicateComparison]: unable to prove that (exists ((v_ArrVal_81 Int) (LDV_INIT_LIST_HEAD_~list.offset Int) (v_ArrVal_82 Int)) (and (= |c_#memory_int| (store |c_old(#memory_int)| |c_LDV_INIT_LIST_HEAD_#in~list.base| (store (store (select |c_old(#memory_int)| |c_LDV_INIT_LIST_HEAD_#in~list.base|) LDV_INIT_LIST_HEAD_~list.offset v_ArrVal_82) (+ LDV_INIT_LIST_HEAD_~list.offset 4) v_ArrVal_81))) (<= LDV_INIT_LIST_HEAD_~list.offset |c_LDV_INIT_LIST_HEAD_#in~list.offset|))) is different from true [2022-11-23 14:57:43,124 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:57:43,126 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:57:43,128 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 29 [2022-11-23 14:57:43,218 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2022-11-23 14:57:43,239 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-23 14:57:43,239 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 14:57:43,240 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1552857585] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:57:43,240 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-23 14:57:43,240 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [4] total 16 [2022-11-23 14:57:43,240 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1165732545] [2022-11-23 14:57:43,240 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:57:43,241 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-23 14:57:43,241 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:57:43,242 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-23 14:57:43,242 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=177, Unknown=1, NotChecked=26, Total=240 [2022-11-23 14:57:43,242 INFO L87 Difference]: Start difference. First operand 32 states and 35 transitions. Second operand has 14 states, 10 states have (on average 1.4) internal successors, (14), 12 states have internal predecessors, (14), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-23 14:57:43,585 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:57:43,585 INFO L93 Difference]: Finished difference Result 39 states and 44 transitions. [2022-11-23 14:57:43,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-23 14:57:43,585 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 10 states have (on average 1.4) internal successors, (14), 12 states have internal predecessors, (14), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 18 [2022-11-23 14:57:43,585 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:57:43,586 INFO L225 Difference]: With dead ends: 39 [2022-11-23 14:57:43,586 INFO L226 Difference]: Without dead ends: 38 [2022-11-23 14:57:43,587 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=79, Invalid=386, Unknown=1, NotChecked=40, Total=506 [2022-11-23 14:57:43,587 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 44 mSDsluCounter, 73 mSDsCounter, 0 mSdLazyCounter, 199 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 88 SdHoareTripleChecker+Invalid, 254 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 199 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 34 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-23 14:57:43,588 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [44 Valid, 88 Invalid, 254 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 199 Invalid, 0 Unknown, 34 Unchecked, 0.2s Time] [2022-11-23 14:57:43,588 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2022-11-23 14:57:43,596 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 31. [2022-11-23 14:57:43,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31 states, 21 states have (on average 1.2857142857142858) internal successors, (27), 24 states have internal predecessors, (27), 4 states have call successors, (4), 3 states have call predecessors, (4), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-23 14:57:43,597 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 34 transitions. [2022-11-23 14:57:43,597 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 34 transitions. Word has length 18 [2022-11-23 14:57:43,598 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:57:43,598 INFO L495 AbstractCegarLoop]: Abstraction has 31 states and 34 transitions. [2022-11-23 14:57:43,598 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 10 states have (on average 1.4) internal successors, (14), 12 states have internal predecessors, (14), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-23 14:57:43,598 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 34 transitions. [2022-11-23 14:57:43,599 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-11-23 14:57:43,599 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:57:43,599 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:57:43,610 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ffe92ed-b275-489e-b740-0d2d70277d0c/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-23 14:57:43,804 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ffe92ed-b275-489e-b740-0d2d70277d0c/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 14:57:43,805 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ldv_kobject_putErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-11-23 14:57:43,805 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:57:43,805 INFO L85 PathProgramCache]: Analyzing trace with hash 1525115012, now seen corresponding path program 1 times [2022-11-23 14:57:43,805 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:57:43,805 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1507147771] [2022-11-23 14:57:43,806 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:57:43,806 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:57:43,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:57:43,968 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 14:57:43,969 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:57:43,969 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1507147771] [2022-11-23 14:57:43,969 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1507147771] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 14:57:43,969 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1435407101] [2022-11-23 14:57:43,969 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:57:43,969 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 14:57:43,970 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ffe92ed-b275-489e-b740-0d2d70277d0c/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 14:57:43,971 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ffe92ed-b275-489e-b740-0d2d70277d0c/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 14:57:43,990 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ffe92ed-b275-489e-b740-0d2d70277d0c/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-23 14:57:44,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:57:44,094 INFO L263 TraceCheckSpWp]: Trace formula consists of 194 conjuncts, 84 conjunts are in the unsatisfiable core [2022-11-23 14:57:44,097 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 14:57:44,114 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-23 14:57:44,220 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-23 14:57:44,264 WARN L859 $PredicateComparison]: unable to prove that (exists ((v_ArrVal_135 Int) (LDV_INIT_LIST_HEAD_~list.offset Int) (v_ArrVal_138 Int)) (and (<= LDV_INIT_LIST_HEAD_~list.offset |c_LDV_INIT_LIST_HEAD_#in~list.offset|) (= |c_#memory_int| (store |c_old(#memory_int)| |c_LDV_INIT_LIST_HEAD_#in~list.base| (store (store (select |c_old(#memory_int)| |c_LDV_INIT_LIST_HEAD_#in~list.base|) LDV_INIT_LIST_HEAD_~list.offset v_ArrVal_135) (+ LDV_INIT_LIST_HEAD_~list.offset 4) v_ArrVal_138))))) is different from true [2022-11-23 14:57:44,282 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:57:44,284 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:57:44,285 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 29 [2022-11-23 14:57:44,377 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2022-11-23 14:57:44,398 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-23 14:57:44,398 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 14:57:44,398 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1435407101] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:57:44,399 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-23 14:57:44,399 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [4] total 16 [2022-11-23 14:57:44,399 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [268309112] [2022-11-23 14:57:44,399 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:57:44,399 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-23 14:57:44,400 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:57:44,400 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-23 14:57:44,400 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=177, Unknown=1, NotChecked=26, Total=240 [2022-11-23 14:57:44,400 INFO L87 Difference]: Start difference. First operand 31 states and 34 transitions. Second operand has 14 states, 10 states have (on average 1.5) internal successors, (15), 12 states have internal predecessors, (15), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-23 14:57:44,717 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:57:44,717 INFO L93 Difference]: Finished difference Result 36 states and 41 transitions. [2022-11-23 14:57:44,718 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-23 14:57:44,718 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 10 states have (on average 1.5) internal successors, (15), 12 states have internal predecessors, (15), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 19 [2022-11-23 14:57:44,718 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:57:44,719 INFO L225 Difference]: With dead ends: 36 [2022-11-23 14:57:44,719 INFO L226 Difference]: Without dead ends: 35 [2022-11-23 14:57:44,720 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=74, Invalid=349, Unknown=1, NotChecked=38, Total=462 [2022-11-23 14:57:44,720 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 31 mSDsluCounter, 74 mSDsCounter, 0 mSdLazyCounter, 180 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 88 SdHoareTripleChecker+Invalid, 222 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 180 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 32 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-23 14:57:44,720 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [33 Valid, 88 Invalid, 222 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 180 Invalid, 0 Unknown, 32 Unchecked, 0.2s Time] [2022-11-23 14:57:44,721 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2022-11-23 14:57:44,729 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 30. [2022-11-23 14:57:44,729 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30 states, 21 states have (on average 1.2380952380952381) internal successors, (26), 23 states have internal predecessors, (26), 4 states have call successors, (4), 3 states have call predecessors, (4), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-23 14:57:44,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 33 transitions. [2022-11-23 14:57:44,730 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 33 transitions. Word has length 19 [2022-11-23 14:57:44,730 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:57:44,731 INFO L495 AbstractCegarLoop]: Abstraction has 30 states and 33 transitions. [2022-11-23 14:57:44,731 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 10 states have (on average 1.5) internal successors, (15), 12 states have internal predecessors, (15), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-23 14:57:44,731 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 33 transitions. [2022-11-23 14:57:44,731 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-11-23 14:57:44,732 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:57:44,732 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:57:44,742 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ffe92ed-b275-489e-b740-0d2d70277d0c/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-23 14:57:44,937 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ffe92ed-b275-489e-b740-0d2d70277d0c/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 14:57:44,938 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_kobject_putErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ldv_kobject_putErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-11-23 14:57:44,938 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:57:44,938 INFO L85 PathProgramCache]: Analyzing trace with hash -1409554241, now seen corresponding path program 1 times [2022-11-23 14:57:44,938 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:57:44,938 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1660219880] [2022-11-23 14:57:44,939 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:57:44,939 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:57:44,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:57:45,103 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-23 14:57:45,104 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:57:45,104 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1660219880] [2022-11-23 14:57:45,104 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1660219880] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:57:45,104 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:57:45,104 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-23 14:57:45,105 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [328129703] [2022-11-23 14:57:45,105 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:57:45,106 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-23 14:57:45,106 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:57:45,106 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-23 14:57:45,107 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-23 14:57:45,107 INFO L87 Difference]: Start difference. First operand 30 states and 33 transitions. Second operand has 5 states, 5 states have (on average 3.4) internal successors, (17), 5 states have internal predecessors, (17), 3 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-23 14:57:45,191 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:57:45,191 INFO L93 Difference]: Finished difference Result 41 states and 45 transitions. [2022-11-23 14:57:45,192 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-23 14:57:45,192 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.4) internal successors, (17), 5 states have internal predecessors, (17), 3 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 22 [2022-11-23 14:57:45,193 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:57:45,193 INFO L225 Difference]: With dead ends: 41 [2022-11-23 14:57:45,193 INFO L226 Difference]: Without dead ends: 30 [2022-11-23 14:57:45,194 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-11-23 14:57:45,194 INFO L413 NwaCegarLoop]: 20 mSDtfsCounter, 15 mSDsluCounter, 48 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 68 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-23 14:57:45,195 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 68 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-23 14:57:45,195 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2022-11-23 14:57:45,202 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2022-11-23 14:57:45,203 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30 states, 21 states have (on average 1.1904761904761905) internal successors, (25), 23 states have internal predecessors, (25), 4 states have call successors, (4), 3 states have call predecessors, (4), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-23 14:57:45,203 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 32 transitions. [2022-11-23 14:57:45,203 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 32 transitions. Word has length 22 [2022-11-23 14:57:45,204 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:57:45,204 INFO L495 AbstractCegarLoop]: Abstraction has 30 states and 32 transitions. [2022-11-23 14:57:45,204 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.4) internal successors, (17), 5 states have internal predecessors, (17), 3 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-23 14:57:45,204 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 32 transitions. [2022-11-23 14:57:45,205 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-11-23 14:57:45,205 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:57:45,205 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:57:45,205 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-23 14:57:45,205 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_kobject_putErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ldv_kobject_putErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-11-23 14:57:45,206 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:57:45,206 INFO L85 PathProgramCache]: Analyzing trace with hash 882314594, now seen corresponding path program 1 times [2022-11-23 14:57:45,206 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:57:45,206 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [479328281] [2022-11-23 14:57:45,206 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:57:45,206 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:57:45,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:57:45,391 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 14:57:45,391 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:57:45,391 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [479328281] [2022-11-23 14:57:45,392 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [479328281] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 14:57:45,392 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [758763913] [2022-11-23 14:57:45,392 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:57:45,392 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 14:57:45,392 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ffe92ed-b275-489e-b740-0d2d70277d0c/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 14:57:45,394 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ffe92ed-b275-489e-b740-0d2d70277d0c/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 14:57:45,422 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ffe92ed-b275-489e-b740-0d2d70277d0c/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-23 14:57:45,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:57:45,542 INFO L263 TraceCheckSpWp]: Trace formula consists of 284 conjuncts, 132 conjunts are in the unsatisfiable core [2022-11-23 14:57:45,550 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 14:57:45,680 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-23 14:57:45,733 WARN L859 $PredicateComparison]: unable to prove that (exists ((v_ArrVal_230 Int) (LDV_INIT_LIST_HEAD_~list.offset Int) (v_ArrVal_229 Int)) (and (= (store |c_old(#memory_int)| |c_LDV_INIT_LIST_HEAD_#in~list.base| (store (store (select |c_old(#memory_int)| |c_LDV_INIT_LIST_HEAD_#in~list.base|) LDV_INIT_LIST_HEAD_~list.offset v_ArrVal_230) (+ LDV_INIT_LIST_HEAD_~list.offset 4) v_ArrVal_229)) |c_#memory_int|) (<= LDV_INIT_LIST_HEAD_~list.offset |c_LDV_INIT_LIST_HEAD_#in~list.offset|))) is different from true [2022-11-23 14:57:45,752 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:57:45,754 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:57:45,755 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 29 [2022-11-23 14:57:45,918 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 14:57:45,921 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-23 14:57:45,921 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 32 treesize of output 28 [2022-11-23 14:57:46,034 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2022-11-23 14:57:46,057 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 14:57:46,057 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 14:57:46,594 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [758763913] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 14:57:46,594 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1824513065] [2022-11-23 14:57:46,613 INFO L159 IcfgInterpreter]: Started Sifa with 24 locations of interest [2022-11-23 14:57:46,613 INFO L166 IcfgInterpreter]: Building call graph [2022-11-23 14:57:46,619 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-23 14:57:46,624 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-23 14:57:46,625 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-23 14:57:46,716 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-11-23 14:57:46,722 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2022-11-23 14:57:46,885 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2022-11-23 14:57:46,913 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 14:57:46,925 INFO L321 Elim1Store]: treesize reduction 19, result has 26.9 percent of original size [2022-11-23 14:57:46,926 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 140 treesize of output 132 [2022-11-23 14:57:46,940 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 14:57:46,952 INFO L321 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2022-11-23 14:57:46,953 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 138 treesize of output 134 [2022-11-23 14:57:47,054 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2022-11-23 14:57:47,070 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2022-11-23 14:57:47,079 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2022-11-23 14:57:47,155 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-23 14:57:47,168 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-11-23 14:57:47,189 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-11-23 14:57:47,322 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:57:47,323 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 17 [2022-11-23 14:57:47,330 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:57:47,332 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 17 [2022-11-23 14:57:47,345 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:57:47,346 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 7 [2022-11-23 14:57:47,407 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-11-23 14:57:47,633 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-11-23 14:57:47,812 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-11-23 14:57:47,835 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-11-23 14:57:47,858 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 13 [2022-11-23 14:57:48,017 INFO L197 IcfgInterpreter]: Interpreting procedure ldv_kobject_put with input of size 39 for LOIs [2022-11-23 14:57:48,052 INFO L197 IcfgInterpreter]: Interpreting procedure LDV_INIT_LIST_HEAD with input of size 33 for LOIs [2022-11-23 14:57:48,066 INFO L197 IcfgInterpreter]: Interpreting procedure ldv_malloc with input of size 43 for LOIs [2022-11-23 14:57:48,095 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-23 14:57:53,194 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '1336#(and (= (ite (<= (mod |ldv_kobject_put_ldv_kref_sub_~count#1| 4294967296) 2147483647) (mod |ldv_kobject_put_ldv_kref_sub_~count#1| 4294967296) (+ (- 4294967296) (mod |ldv_kobject_put_ldv_kref_sub_~count#1| 4294967296))) |ldv_kobject_put_ldv_atomic_sub_return_#in~i#1|) (= |ldv_kobject_put_ldv_atomic_sub_return_~i#1| |ldv_kobject_put_ldv_atomic_sub_return_#in~i#1|) (= |ldv_kobject_put_ldv_kref_sub_#in~kref#1.base| |ldv_kobject_put_ldv_kref_put_~kref#1.base|) (= (+ 12 |ldv_kobject_put_~kobj#1.offset|) |ldv_kobject_put_ldv_kref_put_#in~kref#1.offset|) (= |ldv_kobject_put_~kobj#1.base| |ldv_kobject_put_#in~kobj#1.base|) (= |ldv_kobject_put_ldv_kref_put_#in~release#1.offset| |ldv_kobject_put_ldv_kref_put_~release#1.offset|) (not (<= |ldv_kobject_put_ldv_atomic_sub_return_~i#1| (+ |ldv_kobject_put_ldv_atomic_sub_return_~temp~1#1| 2147483648))) (= |~#ldv_global_msg_list~0.offset| 0) (= |#memory_int| |old(#memory_int)|) (= |ldv_kobject_put_ldv_kref_put_#in~release#1.base| |ldv_kobject_put_ldv_kref_put_~release#1.base|) (= |ldv_kobject_put_#in~kobj#1.offset| |ldv_kobject_put_~kobj#1.offset|) (= |ldv_kobject_put_ldv_atomic_sub_return_~v#1.base| |ldv_kobject_put_ldv_atomic_sub_return_#in~v#1.base|) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= |ldv_kobject_put_ldv_kref_put_~release#1.offset| |ldv_kobject_put_ldv_kref_sub_#in~release#1.offset|) (= |ldv_kobject_put_ldv_kref_sub_#in~kref#1.base| |ldv_kobject_put_ldv_kref_sub_~kref#1.base|) (= |ldv_kobject_put_ldv_kref_sub_#in~count#1| 1) (= |ldv_kobject_put_ldv_kref_put_~kref#1.offset| |ldv_kobject_put_ldv_kref_sub_#in~kref#1.offset|) (= |ldv_kobject_put_ldv_kref_sub_~release#1.base| |ldv_kobject_put_ldv_kref_sub_#in~release#1.base|) (= |ldv_kobject_put_ldv_kref_sub_#in~count#1| |ldv_kobject_put_ldv_kref_sub_~count#1|) (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|) (= (select (select |#memory_int| |ldv_kobject_put_ldv_atomic_sub_return_~v#1.base|) |ldv_kobject_put_ldv_atomic_sub_return_~v#1.offset|) |ldv_kobject_put_ldv_atomic_sub_return_~temp~1#1|) (= |ldv_kobject_put_ldv_kref_sub_#in~release#1.base| |ldv_kobject_put_ldv_kref_put_~release#1.base|) (= |ldv_kobject_put_ldv_kref_put_~kref#1.offset| |ldv_kobject_put_ldv_kref_put_#in~kref#1.offset|) (= |ldv_kobject_put_ldv_kref_sub_~release#1.offset| |ldv_kobject_put_ldv_kref_sub_#in~release#1.offset|) (= |ldv_kobject_put_#in~kobj#1.offset| 0) (= |ldv_kobject_put_ldv_kref_put_#in~release#1.base| |#funAddr~ldv_kobject_release.base|) (= |ldv_kobject_put_ldv_atomic_sub_return_~v#1.offset| |ldv_kobject_put_ldv_atomic_sub_return_#in~v#1.offset|) (= |ldv_kobject_put_ldv_kref_sub_#in~kref#1.offset| |ldv_kobject_put_ldv_kref_sub_~kref#1.offset|) (= |ldv_kobject_put_ldv_atomic_sub_return_#in~v#1.offset| |ldv_kobject_put_ldv_kref_sub_~kref#1.offset|) (= |~#ldv_global_msg_list~0.base| 1) (= |#NULL.offset| 0) (= |ldv_kobject_put_ldv_kref_put_#in~release#1.offset| |#funAddr~ldv_kobject_release.offset|) (not (= |ldv_kobject_put_#in~kobj#1.base| 0)) (= |ldv_kobject_put_ldv_kref_put_#in~kref#1.base| |ldv_kobject_put_ldv_kref_put_~kref#1.base|) (= |ldv_kobject_put_~kobj#1.base| |ldv_kobject_put_ldv_kref_put_#in~kref#1.base|) (= |old(#valid)| |#valid|) (<= 0 |#StackHeapBarrier|) (<= 0 (+ 2147483648 (select (select |old(#memory_int)| |ldv_kobject_put_#in~kobj#1.base|) (+ |ldv_kobject_put_#in~kobj#1.offset| 12)))) (= |#NULL.base| 0) (= |ldv_kobject_put_ldv_atomic_sub_return_#in~v#1.base| |ldv_kobject_put_ldv_kref_sub_~kref#1.base|))' at error location [2022-11-23 14:57:53,194 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-23 14:57:53,194 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-23 14:57:53,195 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 18] total 21 [2022-11-23 14:57:53,195 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1583958972] [2022-11-23 14:57:53,195 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-23 14:57:53,196 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-11-23 14:57:53,196 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:57:53,196 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-11-23 14:57:53,197 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=212, Invalid=2443, Unknown=1, NotChecked=100, Total=2756 [2022-11-23 14:57:53,198 INFO L87 Difference]: Start difference. First operand 30 states and 32 transitions. Second operand has 21 states, 18 states have (on average 2.0555555555555554) internal successors, (37), 18 states have internal predecessors, (37), 4 states have call successors, (5), 4 states have call predecessors, (5), 3 states have return successors, (4), 4 states have call predecessors, (4), 3 states have call successors, (4) [2022-11-23 14:57:54,006 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:57:54,006 INFO L93 Difference]: Finished difference Result 63 states and 68 transitions. [2022-11-23 14:57:54,010 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-11-23 14:57:54,010 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 18 states have (on average 2.0555555555555554) internal successors, (37), 18 states have internal predecessors, (37), 4 states have call successors, (5), 4 states have call predecessors, (5), 3 states have return successors, (4), 4 states have call predecessors, (4), 3 states have call successors, (4) Word has length 24 [2022-11-23 14:57:54,010 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:57:54,011 INFO L225 Difference]: With dead ends: 63 [2022-11-23 14:57:54,011 INFO L226 Difference]: Without dead ends: 39 [2022-11-23 14:57:54,014 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 63 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 977 ImplicationChecksByTransitivity, 6.2s TimeCoverageRelationStatistics Valid=319, Invalid=3716, Unknown=1, NotChecked=124, Total=4160 [2022-11-23 14:57:54,015 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 48 mSDsluCounter, 67 mSDsCounter, 0 mSdLazyCounter, 390 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 75 SdHoareTripleChecker+Invalid, 440 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 390 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 33 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-23 14:57:54,015 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [48 Valid, 75 Invalid, 440 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 390 Invalid, 0 Unknown, 33 Unchecked, 0.3s Time] [2022-11-23 14:57:54,016 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2022-11-23 14:57:54,025 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 37. [2022-11-23 14:57:54,025 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37 states, 26 states have (on average 1.1538461538461537) internal successors, (30), 28 states have internal predecessors, (30), 5 states have call successors, (5), 4 states have call predecessors, (5), 4 states have return successors, (4), 4 states have call predecessors, (4), 3 states have call successors, (4) [2022-11-23 14:57:54,026 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 39 transitions. [2022-11-23 14:57:54,026 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 39 transitions. Word has length 24 [2022-11-23 14:57:54,026 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:57:54,026 INFO L495 AbstractCegarLoop]: Abstraction has 37 states and 39 transitions. [2022-11-23 14:57:54,027 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 18 states have (on average 2.0555555555555554) internal successors, (37), 18 states have internal predecessors, (37), 4 states have call successors, (5), 4 states have call predecessors, (5), 3 states have return successors, (4), 4 states have call predecessors, (4), 3 states have call successors, (4) [2022-11-23 14:57:54,027 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 39 transitions. [2022-11-23 14:57:54,027 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-11-23 14:57:54,028 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:57:54,028 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:57:54,044 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ffe92ed-b275-489e-b740-0d2d70277d0c/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-23 14:57:54,233 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ffe92ed-b275-489e-b740-0d2d70277d0c/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 14:57:54,234 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_kobject_putErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ldv_kobject_putErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-11-23 14:57:54,234 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:57:54,234 INFO L85 PathProgramCache]: Analyzing trace with hash 407224624, now seen corresponding path program 1 times [2022-11-23 14:57:54,234 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:57:54,235 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1768812211] [2022-11-23 14:57:54,235 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:57:54,235 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:57:54,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:57:54,417 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 14:57:54,418 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:57:54,418 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1768812211] [2022-11-23 14:57:54,418 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1768812211] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 14:57:54,418 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1290851034] [2022-11-23 14:57:54,418 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:57:54,419 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 14:57:54,419 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ffe92ed-b275-489e-b740-0d2d70277d0c/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 14:57:54,420 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ffe92ed-b275-489e-b740-0d2d70277d0c/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 14:57:54,446 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ffe92ed-b275-489e-b740-0d2d70277d0c/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-23 14:57:54,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:57:54,568 INFO L263 TraceCheckSpWp]: Trace formula consists of 300 conjuncts, 90 conjunts are in the unsatisfiable core [2022-11-23 14:57:54,571 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 14:57:54,645 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-23 14:57:54,703 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2022-11-23 14:57:54,723 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 14:57:54,723 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 14:57:54,816 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 28 [2022-11-23 14:57:54,852 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-23 14:57:54,852 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1290851034] provided 1 perfect and 1 imperfect interpolant sequences [2022-11-23 14:57:54,853 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-11-23 14:57:54,853 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [5, 9] total 16 [2022-11-23 14:57:54,853 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [453115819] [2022-11-23 14:57:54,853 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:57:54,854 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-23 14:57:54,854 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:57:54,854 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-23 14:57:54,854 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=203, Unknown=0, NotChecked=0, Total=240 [2022-11-23 14:57:54,855 INFO L87 Difference]: Start difference. First operand 37 states and 39 transitions. Second operand has 8 states, 7 states have (on average 2.857142857142857) internal successors, (20), 7 states have internal predecessors, (20), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-23 14:57:55,022 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:57:55,022 INFO L93 Difference]: Finished difference Result 37 states and 39 transitions. [2022-11-23 14:57:55,023 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-23 14:57:55,023 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 2.857142857142857) internal successors, (20), 7 states have internal predecessors, (20), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 26 [2022-11-23 14:57:55,024 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:57:55,024 INFO L225 Difference]: With dead ends: 37 [2022-11-23 14:57:55,024 INFO L226 Difference]: Without dead ends: 33 [2022-11-23 14:57:55,024 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 40 SyntacticMatches, 1 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=57, Invalid=323, Unknown=0, NotChecked=0, Total=380 [2022-11-23 14:57:55,025 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 18 mSDsluCounter, 68 mSDsCounter, 0 mSdLazyCounter, 94 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 83 SdHoareTripleChecker+Invalid, 100 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 94 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-23 14:57:55,025 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 83 Invalid, 100 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 94 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-23 14:57:55,026 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2022-11-23 14:57:55,033 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 33. [2022-11-23 14:57:55,033 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33 states, 25 states have (on average 1.08) internal successors, (27), 25 states have internal predecessors, (27), 4 states have call successors, (4), 4 states have call predecessors, (4), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-23 14:57:55,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 34 transitions. [2022-11-23 14:57:55,034 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 34 transitions. Word has length 26 [2022-11-23 14:57:55,034 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:57:55,037 INFO L495 AbstractCegarLoop]: Abstraction has 33 states and 34 transitions. [2022-11-23 14:57:55,037 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 2.857142857142857) internal successors, (20), 7 states have internal predecessors, (20), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-23 14:57:55,037 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 34 transitions. [2022-11-23 14:57:55,044 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-23 14:57:55,044 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:57:55,044 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:57:55,055 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ffe92ed-b275-489e-b740-0d2d70277d0c/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-23 14:57:55,250 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ffe92ed-b275-489e-b740-0d2d70277d0c/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-11-23 14:57:55,250 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_kobject_putErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ldv_kobject_putErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-11-23 14:57:55,252 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:57:55,252 INFO L85 PathProgramCache]: Analyzing trace with hash 1826805637, now seen corresponding path program 1 times [2022-11-23 14:57:55,252 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:57:55,252 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2112433951] [2022-11-23 14:57:55,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:57:55,253 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:57:55,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:57:55,572 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 14:57:55,572 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:57:55,572 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2112433951] [2022-11-23 14:57:55,572 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2112433951] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 14:57:55,572 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [289737189] [2022-11-23 14:57:55,573 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:57:55,573 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 14:57:55,573 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ffe92ed-b275-489e-b740-0d2d70277d0c/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 14:57:55,574 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ffe92ed-b275-489e-b740-0d2d70277d0c/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 14:57:55,583 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ffe92ed-b275-489e-b740-0d2d70277d0c/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-23 14:57:55,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:57:55,778 INFO L263 TraceCheckSpWp]: Trace formula consists of 399 conjuncts, 187 conjunts are in the unsatisfiable core [2022-11-23 14:57:55,784 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 14:57:55,915 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-23 14:57:55,966 WARN L859 $PredicateComparison]: unable to prove that (exists ((v_ArrVal_410 Int) (LDV_INIT_LIST_HEAD_~list.offset Int) (v_ArrVal_409 Int)) (and (= (store |c_old(#memory_int)| |c_LDV_INIT_LIST_HEAD_#in~list.base| (store (store (select |c_old(#memory_int)| |c_LDV_INIT_LIST_HEAD_#in~list.base|) LDV_INIT_LIST_HEAD_~list.offset v_ArrVal_409) (+ LDV_INIT_LIST_HEAD_~list.offset 4) v_ArrVal_410)) |c_#memory_int|) (<= LDV_INIT_LIST_HEAD_~list.offset |c_LDV_INIT_LIST_HEAD_#in~list.offset|))) is different from true [2022-11-23 14:57:55,980 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:57:55,982 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:57:55,983 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 29 [2022-11-23 14:57:56,139 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 14:57:56,142 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-23 14:57:56,142 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 32 treesize of output 28 [2022-11-23 14:57:56,285 WARN L859 $PredicateComparison]: unable to prove that (exists ((v_ArrVal_415 Int)) (let ((.cse0 (select |c_old(#memory_int)| |c_ldv_kobject_put_#in~kobj#1.base|)) (.cse1 (+ |c_ldv_kobject_put_#in~kobj#1.offset| 12))) (and (<= (select .cse0 .cse1) (+ v_ArrVal_415 1)) (= (store |c_old(#memory_int)| |c_ldv_kobject_put_#in~kobj#1.base| (store .cse0 .cse1 v_ArrVal_415)) |c_#memory_int|)))) is different from true [2022-11-23 14:57:56,299 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 14:57:56,302 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-23 14:57:56,302 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 32 treesize of output 28 [2022-11-23 14:57:56,420 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2022-11-23 14:57:56,445 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 14:57:56,445 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 14:57:59,500 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [289737189] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 14:57:59,501 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1238860305] [2022-11-23 14:57:59,504 INFO L159 IcfgInterpreter]: Started Sifa with 28 locations of interest [2022-11-23 14:57:59,504 INFO L166 IcfgInterpreter]: Building call graph [2022-11-23 14:57:59,505 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-23 14:57:59,505 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-23 14:57:59,505 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-23 14:57:59,533 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2022-11-23 14:57:59,540 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-11-23 14:57:59,646 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2022-11-23 14:57:59,656 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 14:57:59,668 INFO L321 Elim1Store]: treesize reduction 19, result has 26.9 percent of original size [2022-11-23 14:57:59,668 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 140 treesize of output 132 [2022-11-23 14:57:59,681 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 14:57:59,694 INFO L321 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2022-11-23 14:57:59,695 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 138 treesize of output 134 [2022-11-23 14:57:59,750 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2022-11-23 14:57:59,787 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2022-11-23 14:57:59,794 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2022-11-23 14:57:59,857 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-11-23 14:57:59,869 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-11-23 14:57:59,886 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-23 14:57:59,993 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:57:59,994 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 7 [2022-11-23 14:57:59,997 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:57:59,998 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 17 [2022-11-23 14:58:00,003 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:58:00,004 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 17 [2022-11-23 14:58:00,058 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-11-23 14:58:00,193 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-11-23 14:58:00,348 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-11-23 14:58:00,361 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-11-23 14:58:00,376 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 13 [2022-11-23 14:58:00,521 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-11-23 14:58:00,540 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 23 [2022-11-23 14:58:00,557 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-11-23 14:58:00,583 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-23 14:58:00,617 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-11-23 14:58:00,617 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 9 treesize of output 11 [2022-11-23 14:58:00,769 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-11-23 14:58:00,975 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-11-23 14:58:01,235 INFO L197 IcfgInterpreter]: Interpreting procedure ldv_kobject_put with input of size 52 for LOIs [2022-11-23 14:58:01,622 INFO L197 IcfgInterpreter]: Interpreting procedure LDV_INIT_LIST_HEAD with input of size 33 for LOIs [2022-11-23 14:58:01,633 INFO L197 IcfgInterpreter]: Interpreting procedure ldv_malloc with input of size 43 for LOIs [2022-11-23 14:58:01,656 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-23 14:58:08,756 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '2000#(and (= (ite (<= (mod |ldv_kobject_put_ldv_kref_sub_~count#1| 4294967296) 2147483647) (mod |ldv_kobject_put_ldv_kref_sub_~count#1| 4294967296) (+ (- 4294967296) (mod |ldv_kobject_put_ldv_kref_sub_~count#1| 4294967296))) |ldv_kobject_put_ldv_atomic_sub_return_#in~i#1|) (= |ldv_kobject_put_ldv_atomic_sub_return_~i#1| |ldv_kobject_put_ldv_atomic_sub_return_#in~i#1|) (= |ldv_kobject_put_ldv_kref_sub_#in~kref#1.base| |ldv_kobject_put_ldv_kref_put_~kref#1.base|) (= (+ 12 |ldv_kobject_put_~kobj#1.offset|) |ldv_kobject_put_ldv_kref_put_#in~kref#1.offset|) (= |ldv_kobject_put_~kobj#1.base| |ldv_kobject_put_#in~kobj#1.base|) (= |ldv_kobject_put_ldv_kref_put_#in~release#1.offset| |ldv_kobject_put_ldv_kref_put_~release#1.offset|) (not (<= |ldv_kobject_put_ldv_atomic_sub_return_~i#1| (+ |ldv_kobject_put_ldv_atomic_sub_return_~temp~1#1| 2147483648))) (<= 0 |ldv_kobject_put_#in~kobj#1.offset|) (= |~#ldv_global_msg_list~0.offset| 0) (= |#memory_int| |old(#memory_int)|) (= |ldv_kobject_put_ldv_kref_put_#in~release#1.base| |ldv_kobject_put_ldv_kref_put_~release#1.base|) (= |ldv_kobject_put_#in~kobj#1.offset| |ldv_kobject_put_~kobj#1.offset|) (= |ldv_kobject_put_ldv_atomic_sub_return_~v#1.base| |ldv_kobject_put_ldv_atomic_sub_return_#in~v#1.base|) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= |ldv_kobject_put_ldv_kref_put_~release#1.offset| |ldv_kobject_put_ldv_kref_sub_#in~release#1.offset|) (= |ldv_kobject_put_ldv_kref_sub_#in~kref#1.base| |ldv_kobject_put_ldv_kref_sub_~kref#1.base|) (= |ldv_kobject_put_ldv_kref_sub_#in~count#1| 1) (= |ldv_kobject_put_ldv_kref_put_~kref#1.offset| |ldv_kobject_put_ldv_kref_sub_#in~kref#1.offset|) (= |ldv_kobject_put_ldv_kref_sub_~release#1.base| |ldv_kobject_put_ldv_kref_sub_#in~release#1.base|) (= |ldv_kobject_put_ldv_kref_sub_#in~count#1| |ldv_kobject_put_ldv_kref_sub_~count#1|) (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|) (= (select (select |#memory_int| |ldv_kobject_put_ldv_atomic_sub_return_~v#1.base|) |ldv_kobject_put_ldv_atomic_sub_return_~v#1.offset|) |ldv_kobject_put_ldv_atomic_sub_return_~temp~1#1|) (= |ldv_kobject_put_ldv_kref_sub_#in~release#1.base| |ldv_kobject_put_ldv_kref_put_~release#1.base|) (= |ldv_kobject_put_ldv_kref_put_~kref#1.offset| |ldv_kobject_put_ldv_kref_put_#in~kref#1.offset|) (= |ldv_kobject_put_ldv_kref_sub_~release#1.offset| |ldv_kobject_put_ldv_kref_sub_#in~release#1.offset|) (= |ldv_kobject_put_ldv_kref_put_#in~release#1.base| |#funAddr~ldv_kobject_release.base|) (= |ldv_kobject_put_ldv_atomic_sub_return_~v#1.offset| |ldv_kobject_put_ldv_atomic_sub_return_#in~v#1.offset|) (= |ldv_kobject_put_ldv_kref_sub_#in~kref#1.offset| |ldv_kobject_put_ldv_kref_sub_~kref#1.offset|) (= |ldv_kobject_put_ldv_atomic_sub_return_#in~v#1.offset| |ldv_kobject_put_ldv_kref_sub_~kref#1.offset|) (= |~#ldv_global_msg_list~0.base| 1) (not (= |ldv_kobject_put_~kobj#1.base| 0)) (= |#NULL.offset| 0) (= |ldv_kobject_put_ldv_kref_put_#in~release#1.offset| |#funAddr~ldv_kobject_release.offset|) (= |ldv_kobject_put_ldv_kref_put_#in~kref#1.base| |ldv_kobject_put_ldv_kref_put_~kref#1.base|) (= |ldv_kobject_put_~kobj#1.base| |ldv_kobject_put_ldv_kref_put_#in~kref#1.base|) (= |old(#valid)| |#valid|) (<= 0 |#StackHeapBarrier|) (<= |ldv_kobject_put_#in~kobj#1.offset| 0) (= |#NULL.base| 0) (= |ldv_kobject_put_ldv_atomic_sub_return_#in~v#1.base| |ldv_kobject_put_ldv_kref_sub_~kref#1.base|))' at error location [2022-11-23 14:58:08,757 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-23 14:58:08,757 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-23 14:58:08,757 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 23] total 27 [2022-11-23 14:58:08,757 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [185757533] [2022-11-23 14:58:08,757 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-23 14:58:08,758 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2022-11-23 14:58:08,758 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:58:08,758 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2022-11-23 14:58:08,760 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=299, Invalid=3738, Unknown=3, NotChecked=250, Total=4290 [2022-11-23 14:58:08,760 INFO L87 Difference]: Start difference. First operand 33 states and 34 transitions. Second operand has 27 states, 23 states have (on average 2.130434782608696) internal successors, (49), 23 states have internal predecessors, (49), 5 states have call successors, (7), 4 states have call predecessors, (7), 4 states have return successors, (6), 5 states have call predecessors, (6), 4 states have call successors, (6) [2022-11-23 14:58:09,609 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:58:09,609 INFO L93 Difference]: Finished difference Result 57 states and 60 transitions. [2022-11-23 14:58:09,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-11-23 14:58:09,610 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 23 states have (on average 2.130434782608696) internal successors, (49), 23 states have internal predecessors, (49), 5 states have call successors, (7), 4 states have call predecessors, (7), 4 states have return successors, (6), 5 states have call predecessors, (6), 4 states have call successors, (6) Word has length 32 [2022-11-23 14:58:09,610 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:58:09,611 INFO L225 Difference]: With dead ends: 57 [2022-11-23 14:58:09,611 INFO L226 Difference]: Without dead ends: 0 [2022-11-23 14:58:09,613 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 75 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 1640 ImplicationChecksByTransitivity, 10.5s TimeCoverageRelationStatistics Valid=421, Invalid=5134, Unknown=3, NotChecked=294, Total=5852 [2022-11-23 14:58:09,614 INFO L413 NwaCegarLoop]: 7 mSDtfsCounter, 40 mSDsluCounter, 33 mSDsCounter, 0 mSdLazyCounter, 404 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 40 SdHoareTripleChecker+Invalid, 485 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 404 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 70 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-23 14:58:09,614 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [40 Valid, 40 Invalid, 485 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 404 Invalid, 0 Unknown, 70 Unchecked, 0.3s Time] [2022-11-23 14:58:09,615 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-23 14:58:09,615 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-23 14:58:09,615 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:58:09,615 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-23 14:58:09,615 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 32 [2022-11-23 14:58:09,616 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:58:09,616 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-23 14:58:09,616 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 23 states have (on average 2.130434782608696) internal successors, (49), 23 states have internal predecessors, (49), 5 states have call successors, (7), 4 states have call predecessors, (7), 4 states have return successors, (6), 5 states have call predecessors, (6), 4 states have call successors, (6) [2022-11-23 14:58:09,616 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-23 14:58:09,616 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-23 14:58:09,619 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 4 remaining) [2022-11-23 14:58:09,619 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 4 remaining) [2022-11-23 14:58:09,620 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ldv_kobject_putErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 4 remaining) [2022-11-23 14:58:09,620 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ldv_kobject_putErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 4 remaining) [2022-11-23 14:58:09,626 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ffe92ed-b275-489e-b740-0d2d70277d0c/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-11-23 14:58:09,825 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ffe92ed-b275-489e-b740-0d2d70277d0c/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2022-11-23 14:58:09,828 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-11-23 14:58:11,196 INFO L902 garLoopResultBuilder]: At program point ldv_mallocENTRY(lines 525 531) the Hoare annotation is: true [2022-11-23 14:58:11,197 INFO L899 garLoopResultBuilder]: For program point ldv_mallocEXIT(lines 525 531) no Hoare annotation was computed. [2022-11-23 14:58:11,197 INFO L899 garLoopResultBuilder]: For program point L762(lines 757 763) no Hoare annotation was computed. [2022-11-23 14:58:11,197 INFO L899 garLoopResultBuilder]: For program point L659(line 659) no Hoare annotation was computed. [2022-11-23 14:58:11,197 INFO L895 garLoopResultBuilder]: At program point L659-1(line 659) the Hoare annotation is: (let ((.cse0 (select (select |#memory_int| |ULTIMATE.start_ldv_kobject_create_~kobj~1#1.base|) (+ 12 |ULTIMATE.start_ldv_kobject_create_~kobj~1#1.offset|))) (.cse1 (select (select |#memory_int| |ULTIMATE.start_ldv_kobject_create_#res#1.base|) 12))) (and (<= .cse0 1) (= 0 |ULTIMATE.start_ldv_kobject_create_~kobj~1#1.offset|) (= |ULTIMATE.start_ldv_kobject_init_~kobj#1.base| |ULTIMATE.start_ldv_kobject_create_~kobj~1#1.base|) (<= |ULTIMATE.start_ldv_atomic_add_return_~temp~0#1| 1) (= 0 |ULTIMATE.start_ldv_kobject_create_#res#1.offset|) (= |ULTIMATE.start_ldv_kobject_init_~kobj#1.offset| |ULTIMATE.start_ldv_kobject_create_~kobj~1#1.offset|) (<= |ULTIMATE.start_ldv_atomic_add_return_~i#1| 1) (<= .cse1 1) (<= 1 .cse0) (not (= |ULTIMATE.start_ldv_kobject_get_~kobj#1.base| 0)) (<= 1 .cse1) (= |ULTIMATE.start_ldv_kobject_get_~kobj#1.offset| 0) (not (= |ULTIMATE.start_ldv_kobject_create_#res#1.base| 0)) (<= 1 (select (select |#memory_int| |ULTIMATE.start_ldv_kobject_get_~kobj#1.base|) 12)) (= |ULTIMATE.start_entry_point_~kobj~2#1.offset| 0) (= (+ |ULTIMATE.start_entry_point_~kobj~2#1.offset| 12) |ULTIMATE.start_ldv_atomic_add_return_~v#1.offset|) (not (= |ULTIMATE.start_ldv_kobject_init_~kobj#1.base| 0)) (<= (select (select |#memory_int| |ULTIMATE.start_ldv_atomic_add_return_~v#1.base|) |ULTIMATE.start_ldv_atomic_add_return_~v#1.offset|) |ULTIMATE.start_ldv_atomic_add_return_~temp~0#1|) (= |ULTIMATE.start_ldv_atomic_add_return_~v#1.base| |ULTIMATE.start_entry_point_~kobj~2#1.base|) (<= 1 |ULTIMATE.start_ldv_atomic_add_return_~i#1|) (= |ULTIMATE.start_entry_point_~kobj~2#1.base| |ULTIMATE.start_ldv_kobject_get_~kobj#1.base|) (or (not (= |ULTIMATE.start_ldv_kobject_init_internal_~kobj#1.base| 0)) (not (= |ULTIMATE.start_ldv_kobject_init_internal_~kobj#1.offset| 0))))) [2022-11-23 14:58:11,198 INFO L899 garLoopResultBuilder]: For program point L717(lines 717 718) no Hoare annotation was computed. [2022-11-23 14:58:11,198 INFO L895 garLoopResultBuilder]: At program point L717-2(lines 717 718) the Hoare annotation is: (let ((.cse0 (= 0 |ULTIMATE.start_ldv_kobject_create_#res#1.offset|)) (.cse2 (= |ULTIMATE.start_ldv_kobject_create_#res#1.base| 0)) (.cse1 (= |ULTIMATE.start_entry_point_~kobj~2#1.offset| 0))) (or (and .cse0 (= |ULTIMATE.start_entry_point_~kobj~2#1.base| 0) .cse1 .cse2) (let ((.cse4 (+ |ULTIMATE.start_entry_point_~kobj~2#1.offset| 12)) (.cse3 (select |#memory_int| |ULTIMATE.start_entry_point_~kobj~2#1.base|))) (and (= 0 |ULTIMATE.start_ldv_kobject_create_~kobj~1#1.offset|) (= |ULTIMATE.start_ldv_kobject_init_~kobj#1.base| |ULTIMATE.start_ldv_kobject_create_~kobj~1#1.base|) .cse0 (= |ULTIMATE.start_ldv_kobject_init_~kobj#1.offset| |ULTIMATE.start_ldv_kobject_create_~kobj~1#1.offset|) (< (select .cse3 .cse4) 2147483649) (<= 1 (select (select |#memory_int| |ULTIMATE.start_ldv_kobject_create_~kobj~1#1.base|) (+ 12 |ULTIMATE.start_ldv_kobject_create_~kobj~1#1.offset|))) (not (= |ULTIMATE.start_ldv_kobject_get_~kobj#1.base| 0)) (<= 1 (select (select |#memory_int| |ULTIMATE.start_ldv_kobject_create_#res#1.base|) 12)) (= |ULTIMATE.start_ldv_kobject_get_~kobj#1.offset| 0) (not .cse2) .cse1 (= .cse4 |ULTIMATE.start_ldv_atomic_add_return_~v#1.offset|) (not (= |ULTIMATE.start_ldv_kobject_init_~kobj#1.base| 0)) (<= (select (select |#memory_int| |ULTIMATE.start_ldv_atomic_add_return_~v#1.base|) |ULTIMATE.start_ldv_atomic_add_return_~v#1.offset|) |ULTIMATE.start_ldv_atomic_add_return_~temp~0#1|) (= |ULTIMATE.start_ldv_atomic_add_return_~v#1.base| |ULTIMATE.start_entry_point_~kobj~2#1.base|) (<= 1 |ULTIMATE.start_ldv_atomic_add_return_~i#1|) (= |ULTIMATE.start_entry_point_~kobj~2#1.base| |ULTIMATE.start_ldv_kobject_get_~kobj#1.base|) (<= 2 (select .cse3 12)) (or (not (= |ULTIMATE.start_ldv_kobject_init_internal_~kobj#1.base| 0)) (not (= |ULTIMATE.start_ldv_kobject_init_internal_~kobj#1.offset| 0))))))) [2022-11-23 14:58:11,198 INFO L895 garLoopResultBuilder]: At program point L746(lines 738 747) the Hoare annotation is: (let ((.cse1 (= 0 |ULTIMATE.start_ldv_kobject_create_#res#1.offset|))) (or (let ((.cse0 (select (select |#memory_int| |ULTIMATE.start_ldv_kobject_create_~kobj~1#1.base|) (+ 12 |ULTIMATE.start_ldv_kobject_create_~kobj~1#1.offset|))) (.cse2 (select (select |#memory_int| |ULTIMATE.start_ldv_kobject_create_#res#1.base|) 12))) (and (<= .cse0 1) (= 0 |ULTIMATE.start_ldv_kobject_create_~kobj~1#1.offset|) (= |ULTIMATE.start_ldv_kobject_init_~kobj#1.base| |ULTIMATE.start_ldv_kobject_create_~kobj~1#1.base|) .cse1 (= |ULTIMATE.start_ldv_kobject_init_~kobj#1.offset| |ULTIMATE.start_ldv_kobject_create_~kobj~1#1.offset|) (<= .cse2 1) (<= 1 .cse0) (<= 1 .cse2) (not (= |ULTIMATE.start_ldv_kobject_init_~kobj#1.base| 0)) (or (not (= |ULTIMATE.start_ldv_kobject_init_internal_~kobj#1.base| 0)) (not (= |ULTIMATE.start_ldv_kobject_init_internal_~kobj#1.offset| 0))))) (and .cse1 (= |ULTIMATE.start_ldv_kobject_create_#res#1.base| 0)))) [2022-11-23 14:58:11,198 INFO L899 garLoopResultBuilder]: For program point L742(lines 742 743) no Hoare annotation was computed. [2022-11-23 14:58:11,199 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 659) no Hoare annotation was computed. [2022-11-23 14:58:11,199 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-11-23 14:58:11,199 INFO L895 garLoopResultBuilder]: At program point L-1-2(line -1) the Hoare annotation is: (and (= 0 |ULTIMATE.start_ldv_kobject_create_~kobj~1#1.offset|) (not (= |ULTIMATE.start_ldv_kobject_create_~kobj~1#1.base| 0))) [2022-11-23 14:58:11,199 INFO L899 garLoopResultBuilder]: For program point L730(lines 730 732) no Hoare annotation was computed. [2022-11-23 14:58:11,199 INFO L895 garLoopResultBuilder]: At program point L726(line 726) the Hoare annotation is: (let ((.cse0 (select (select |#memory_int| |ULTIMATE.start_ldv_kobject_init_internal_~kobj#1.base|) (+ 12 |ULTIMATE.start_ldv_kobject_init_internal_~kobj#1.offset|)))) (and (<= .cse0 1) (= 0 |ULTIMATE.start_ldv_kobject_create_~kobj~1#1.offset|) (= |ULTIMATE.start_ldv_kobject_init_~kobj#1.base| |ULTIMATE.start_ldv_kobject_create_~kobj~1#1.base|) (= |ULTIMATE.start_ldv_kobject_init_internal_~kobj#1.offset| |ULTIMATE.start_ldv_kobject_create_~kobj~1#1.offset|) (= |ULTIMATE.start_ldv_kobject_init_~kobj#1.offset| |ULTIMATE.start_ldv_kobject_create_~kobj~1#1.offset|) (= |ULTIMATE.start_ldv_kobject_create_~kobj~1#1.base| |ULTIMATE.start_ldv_kobject_init_internal_~kobj#1.base|) (not (= |ULTIMATE.start_ldv_kobject_init_internal_~kobj#1.base| 0)) (<= 1 .cse0))) [2022-11-23 14:58:11,199 INFO L895 garLoopResultBuilder]: At program point L726-1(lines 721 727) the Hoare annotation is: (let ((.cse0 (select (select |#memory_int| |ULTIMATE.start_ldv_kobject_create_~kobj~1#1.base|) (+ 12 |ULTIMATE.start_ldv_kobject_create_~kobj~1#1.offset|)))) (and (<= .cse0 1) (= 0 |ULTIMATE.start_ldv_kobject_create_~kobj~1#1.offset|) (= |ULTIMATE.start_ldv_kobject_init_~kobj#1.base| |ULTIMATE.start_ldv_kobject_create_~kobj~1#1.base|) (= |ULTIMATE.start_ldv_kobject_init_~kobj#1.offset| |ULTIMATE.start_ldv_kobject_create_~kobj~1#1.offset|) (<= 1 .cse0) (not (= |ULTIMATE.start_ldv_kobject_init_~kobj#1.base| 0)) (or (not (= |ULTIMATE.start_ldv_kobject_init_internal_~kobj#1.base| 0)) (not (= |ULTIMATE.start_ldv_kobject_init_internal_~kobj#1.offset| 0))))) [2022-11-23 14:58:11,200 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 659) no Hoare annotation was computed. [2022-11-23 14:58:11,200 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-11-23 14:58:11,200 INFO L895 garLoopResultBuilder]: At program point L731(lines 728 737) the Hoare annotation is: (let ((.cse0 (select (select |#memory_int| |ULTIMATE.start_ldv_kobject_create_~kobj~1#1.base|) (+ 12 |ULTIMATE.start_ldv_kobject_create_~kobj~1#1.offset|)))) (and (<= .cse0 1) (= 0 |ULTIMATE.start_ldv_kobject_create_~kobj~1#1.offset|) (= |ULTIMATE.start_ldv_kobject_init_~kobj#1.base| |ULTIMATE.start_ldv_kobject_create_~kobj~1#1.base|) (= |ULTIMATE.start_ldv_kobject_init_~kobj#1.offset| |ULTIMATE.start_ldv_kobject_create_~kobj~1#1.offset|) (<= 1 .cse0) (not (= |ULTIMATE.start_ldv_kobject_init_~kobj#1.base| 0)) (or (not (= |ULTIMATE.start_ldv_kobject_init_internal_~kobj#1.base| 0)) (not (= |ULTIMATE.start_ldv_kobject_init_internal_~kobj#1.offset| 0))))) [2022-11-23 14:58:11,200 INFO L899 garLoopResultBuilder]: For program point L723(lines 723 724) no Hoare annotation was computed. [2022-11-23 14:58:11,201 INFO L895 garLoopResultBuilder]: At program point L761(line 761) the Hoare annotation is: (let ((.cse0 (= 0 |ULTIMATE.start_ldv_kobject_create_#res#1.offset|)) (.cse2 (= |ULTIMATE.start_ldv_kobject_create_#res#1.base| 0)) (.cse1 (= |ULTIMATE.start_entry_point_~kobj~2#1.offset| 0))) (or (and .cse0 (= |ULTIMATE.start_entry_point_~kobj~2#1.base| 0) .cse1 .cse2) (let ((.cse4 (+ |ULTIMATE.start_entry_point_~kobj~2#1.offset| 12)) (.cse3 (select |#memory_int| |ULTIMATE.start_entry_point_~kobj~2#1.base|))) (and (= 0 |ULTIMATE.start_ldv_kobject_create_~kobj~1#1.offset|) (= |ULTIMATE.start_ldv_kobject_init_~kobj#1.base| |ULTIMATE.start_ldv_kobject_create_~kobj~1#1.base|) .cse0 (= |ULTIMATE.start_ldv_kobject_init_~kobj#1.offset| |ULTIMATE.start_ldv_kobject_create_~kobj~1#1.offset|) (< (select .cse3 .cse4) 2147483649) (<= 1 (select (select |#memory_int| |ULTIMATE.start_ldv_kobject_create_~kobj~1#1.base|) (+ 12 |ULTIMATE.start_ldv_kobject_create_~kobj~1#1.offset|))) (not (= |ULTIMATE.start_ldv_kobject_get_~kobj#1.base| 0)) (<= 1 (select (select |#memory_int| |ULTIMATE.start_ldv_kobject_create_#res#1.base|) 12)) (= |ULTIMATE.start_ldv_kobject_get_~kobj#1.offset| 0) (not .cse2) .cse1 (= .cse4 |ULTIMATE.start_ldv_atomic_add_return_~v#1.offset|) (not (= |ULTIMATE.start_ldv_kobject_init_~kobj#1.base| 0)) (<= (select (select |#memory_int| |ULTIMATE.start_ldv_atomic_add_return_~v#1.base|) |ULTIMATE.start_ldv_atomic_add_return_~v#1.offset|) |ULTIMATE.start_ldv_atomic_add_return_~temp~0#1|) (= |ULTIMATE.start_ldv_atomic_add_return_~v#1.base| |ULTIMATE.start_entry_point_~kobj~2#1.base|) (<= 1 |ULTIMATE.start_ldv_atomic_add_return_~i#1|) (= |ULTIMATE.start_entry_point_~kobj~2#1.base| |ULTIMATE.start_ldv_kobject_get_~kobj#1.base|) (<= 2 (select .cse3 12)) (or (not (= |ULTIMATE.start_ldv_kobject_init_internal_~kobj#1.base| 0)) (not (= |ULTIMATE.start_ldv_kobject_init_internal_~kobj#1.offset| 0))))))) [2022-11-23 14:58:11,201 INFO L895 garLoopResultBuilder]: At program point L761-1(line 761) the Hoare annotation is: (let ((.cse2 (= 0 |ULTIMATE.start_ldv_kobject_create_#res#1.offset|)) (.cse4 (= |ULTIMATE.start_entry_point_~kobj~2#1.offset| 0)) (.cse3 (= |ULTIMATE.start_ldv_kobject_create_#res#1.base| 0))) (or (let ((.cse0 (select |#memory_int| |ULTIMATE.start_entry_point_~kobj~2#1.base|)) (.cse1 (+ |ULTIMATE.start_entry_point_~kobj~2#1.offset| 12))) (and (= |ULTIMATE.start_ldv_kobject_get_~kobj#1.offset| |ULTIMATE.start_entry_point_~kobj~2#1.offset|) (<= 1 (select .cse0 12)) (= 0 |ULTIMATE.start_ldv_kobject_create_~kobj~1#1.offset|) (= |ULTIMATE.start_ldv_kobject_init_~kobj#1.base| |ULTIMATE.start_ldv_kobject_create_~kobj~1#1.base|) (= |ULTIMATE.start_ldv_kobject_init_~kobj#1.offset| |ULTIMATE.start_ldv_kobject_create_~kobj~1#1.offset|) (< (select .cse0 .cse1) 2147483649) (not (= |ULTIMATE.start_ldv_kobject_get_~kobj#1.base| 0)) (or (not .cse2) (not .cse3)) .cse4 (= .cse1 |ULTIMATE.start_ldv_atomic_add_return_~v#1.offset|) (not (= |ULTIMATE.start_ldv_kobject_init_~kobj#1.base| 0)) (= |ULTIMATE.start_ldv_atomic_add_return_~v#1.base| |ULTIMATE.start_entry_point_~kobj~2#1.base|) (= |ULTIMATE.start_entry_point_~kobj~2#1.base| |ULTIMATE.start_ldv_kobject_get_~kobj#1.base|) (or (not (= |ULTIMATE.start_ldv_kobject_init_internal_~kobj#1.base| 0)) (not (= |ULTIMATE.start_ldv_kobject_init_internal_~kobj#1.offset| 0))))) (and .cse2 (= |ULTIMATE.start_entry_point_~kobj~2#1.base| 0) .cse4 .cse3))) [2022-11-23 14:58:11,201 INFO L902 garLoopResultBuilder]: At program point L741(line 741) the Hoare annotation is: true [2022-11-23 14:58:11,201 INFO L899 garLoopResultBuilder]: For program point L741-1(line 741) no Hoare annotation was computed. [2022-11-23 14:58:11,201 INFO L895 garLoopResultBuilder]: At program point LDV_INIT_LIST_HEADENTRY(lines 538 542) the Hoare annotation is: (= |#memory_int| |old(#memory_int)|) [2022-11-23 14:58:11,202 INFO L899 garLoopResultBuilder]: For program point LDV_INIT_LIST_HEADEXIT(lines 538 542) no Hoare annotation was computed. [2022-11-23 14:58:11,202 INFO L899 garLoopResultBuilder]: For program point L667(line 667) no Hoare annotation was computed. [2022-11-23 14:58:11,202 INFO L895 garLoopResultBuilder]: At program point L667-1(line 667) the Hoare annotation is: (let ((.cse3 (+ |ldv_kobject_put_#in~kobj#1.offset| 12)) (.cse4 (select |old(#memory_int)| |ldv_kobject_put_#in~kobj#1.base|))) (let ((.cse0 (not (= |ldv_kobject_put_#in~kobj#1.offset| 0))) (.cse2 (select .cse4 12)) (.cse1 (not (< (select .cse4 .cse3) 2147483649)))) (and (or .cse0 .cse1 (not (<= 2 .cse2)) (and (= |ldv_kobject_put_ldv_atomic_sub_return_~v#1.offset| .cse3) (= |ldv_kobject_put_~kobj#1.base| |ldv_kobject_put_#in~kobj#1.base|) (<= (select (select |#memory_int| |ldv_kobject_put_ldv_atomic_sub_return_~v#1.base|) |ldv_kobject_put_ldv_atomic_sub_return_~v#1.offset|) |ldv_kobject_put_ldv_atomic_sub_return_~temp~1#1|) (<= |ldv_kobject_put_ldv_atomic_sub_return_~i#1| 1) (= |ldv_kobject_put_ldv_atomic_sub_return_~v#1.base| |ldv_kobject_put_#in~kobj#1.base|) (= |ldv_kobject_put_~kobj#1.offset| 0))) (or .cse0 (not (= |ldv_kobject_put_#in~kobj#1.base| 0))) (or .cse0 (not (<= 1 .cse2)) .cse1 (and (= |#memory_int| |old(#memory_int)|) (<= |ldv_kobject_put_ldv_atomic_sub_return_~temp~1#1| (+ |ldv_kobject_put_ldv_atomic_sub_return_~i#1| 2147483647)) (< (select (select |#memory_int| |ldv_kobject_put_~kobj#1.base|) (+ 12 |ldv_kobject_put_~kobj#1.offset|)) 2147483649)))))) [2022-11-23 14:58:11,202 INFO L899 garLoopResultBuilder]: For program point ldv_kobject_putErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 667) no Hoare annotation was computed. [2022-11-23 14:58:11,203 INFO L895 garLoopResultBuilder]: At program point ldv_kobject_putENTRY(lines 709 714) the Hoare annotation is: (let ((.cse0 (select |old(#memory_int)| |ldv_kobject_put_#in~kobj#1.base|))) (or (not (= |ldv_kobject_put_#in~kobj#1.offset| 0)) (not (<= 1 (select .cse0 12))) (= |#memory_int| |old(#memory_int)|) (not (< (select .cse0 (+ |ldv_kobject_put_#in~kobj#1.offset| 12)) 2147483649)))) [2022-11-23 14:58:11,203 INFO L899 garLoopResultBuilder]: For program point L711(lines 711 713) no Hoare annotation was computed. [2022-11-23 14:58:11,203 INFO L899 garLoopResultBuilder]: For program point L711-2(lines 709 714) no Hoare annotation was computed. [2022-11-23 14:58:11,203 INFO L899 garLoopResultBuilder]: For program point ldv_kobject_putEXIT(lines 709 714) no Hoare annotation was computed. [2022-11-23 14:58:11,203 INFO L899 garLoopResultBuilder]: For program point ldv_kobject_putErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 667) no Hoare annotation was computed. [2022-11-23 14:58:11,206 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:58:11,208 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-23 14:58:11,231 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 02:58:11 BoogieIcfgContainer [2022-11-23 14:58:11,231 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-23 14:58:11,232 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-23 14:58:11,232 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-23 14:58:11,232 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-23 14:58:11,233 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:57:40" (3/4) ... [2022-11-23 14:58:11,236 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-23 14:58:11,242 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure ldv_malloc [2022-11-23 14:58:11,242 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure LDV_INIT_LIST_HEAD [2022-11-23 14:58:11,243 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure ldv_kobject_put [2022-11-23 14:58:11,248 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 47 nodes and edges [2022-11-23 14:58:11,248 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 15 nodes and edges [2022-11-23 14:58:11,249 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2022-11-23 14:58:11,274 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((((unknown-#memory_int-unknown[kobj][12 + kobj] <= 1 && 0 == kobj) && kobj == kobj) && 0 == \result) && kobj == kobj) && unknown-#memory_int-unknown[\result][12] <= 1) && 1 <= unknown-#memory_int-unknown[kobj][12 + kobj]) && 1 <= unknown-#memory_int-unknown[\result][12]) && !(kobj == 0)) && (!(kobj == 0) || !(kobj == 0))) || (0 == \result && \result == 0) [2022-11-23 14:58:11,275 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((0 == \result && kobj == 0) && kobj == 0) && \result == 0) || ((((((((((((((((((0 == kobj && kobj == kobj) && 0 == \result) && kobj == kobj) && unknown-#memory_int-unknown[kobj][kobj + 12] < 2147483649) && 1 <= unknown-#memory_int-unknown[kobj][12 + kobj]) && !(kobj == 0)) && 1 <= unknown-#memory_int-unknown[\result][12]) && kobj == 0) && !(\result == 0)) && kobj == 0) && kobj + 12 == v) && !(kobj == 0)) && unknown-#memory_int-unknown[v][v] <= temp) && v == kobj) && 1 <= i) && kobj == kobj) && 2 <= unknown-#memory_int-unknown[kobj][12]) && (!(kobj == 0) || !(kobj == 0))) [2022-11-23 14:58:11,275 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((((((((((((((((unknown-#memory_int-unknown[kobj][12 + kobj] <= 1 && 0 == kobj) && kobj == kobj) && temp <= 1) && 0 == \result) && kobj == kobj) && i <= 1) && unknown-#memory_int-unknown[\result][12] <= 1) && 1 <= unknown-#memory_int-unknown[kobj][12 + kobj]) && !(kobj == 0)) && 1 <= unknown-#memory_int-unknown[\result][12]) && kobj == 0) && !(\result == 0)) && 1 <= unknown-#memory_int-unknown[kobj][12]) && kobj == 0) && kobj + 12 == v) && !(kobj == 0)) && unknown-#memory_int-unknown[v][v] <= temp) && v == kobj) && 1 <= i) && kobj == kobj) && (!(kobj == 0) || !(kobj == 0)) [2022-11-23 14:58:11,276 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((!(#in~kobj == 0) || !(\old(unknown-#memory_int-unknown)[#in~kobj][#in~kobj + 12] < 2147483649)) || !(2 <= \old(unknown-#memory_int-unknown)[#in~kobj][12])) || (((((v == #in~kobj + 12 && kobj == #in~kobj) && unknown-#memory_int-unknown[v][v] <= temp) && i <= 1) && v == #in~kobj) && kobj == 0)) && (!(#in~kobj == 0) || !(#in~kobj == 0))) && (((!(#in~kobj == 0) || !(1 <= \old(unknown-#memory_int-unknown)[#in~kobj][12])) || !(\old(unknown-#memory_int-unknown)[#in~kobj][#in~kobj + 12] < 2147483649)) || ((unknown-#memory_int-unknown == \old(unknown-#memory_int-unknown) && temp <= i + 2147483647) && unknown-#memory_int-unknown[kobj][12 + kobj] < 2147483649)) [2022-11-23 14:58:11,293 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ffe92ed-b275-489e-b740-0d2d70277d0c/bin/utaipan-Q6hlc19bkW/witness.graphml [2022-11-23 14:58:11,293 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-23 14:58:11,294 INFO L158 Benchmark]: Toolchain (without parser) took 32476.79ms. Allocated memory was 146.8MB in the beginning and 302.0MB in the end (delta: 155.2MB). Free memory was 107.4MB in the beginning and 188.8MB in the end (delta: -81.4MB). Peak memory consumption was 75.5MB. Max. memory is 16.1GB. [2022-11-23 14:58:11,294 INFO L158 Benchmark]: CDTParser took 0.64ms. Allocated memory is still 146.8MB. Free memory is still 93.2MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-23 14:58:11,295 INFO L158 Benchmark]: CACSL2BoogieTranslator took 617.12ms. Allocated memory is still 146.8MB. Free memory was 107.4MB in the beginning and 85.7MB in the end (delta: 21.7MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2022-11-23 14:58:11,295 INFO L158 Benchmark]: Boogie Procedure Inliner took 54.23ms. Allocated memory is still 146.8MB. Free memory was 85.7MB in the beginning and 83.2MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-23 14:58:11,295 INFO L158 Benchmark]: Boogie Preprocessor took 36.80ms. Allocated memory is still 146.8MB. Free memory was 83.2MB in the beginning and 81.2MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-23 14:58:11,295 INFO L158 Benchmark]: RCFGBuilder took 771.85ms. Allocated memory was 146.8MB in the beginning and 209.7MB in the end (delta: 62.9MB). Free memory was 81.2MB in the beginning and 174.4MB in the end (delta: -93.2MB). Peak memory consumption was 32.3MB. Max. memory is 16.1GB. [2022-11-23 14:58:11,296 INFO L158 Benchmark]: TraceAbstraction took 30928.19ms. Allocated memory was 209.7MB in the beginning and 302.0MB in the end (delta: 92.3MB). Free memory was 174.4MB in the beginning and 192.0MB in the end (delta: -17.6MB). Peak memory consumption was 179.0MB. Max. memory is 16.1GB. [2022-11-23 14:58:11,296 INFO L158 Benchmark]: Witness Printer took 61.75ms. Allocated memory is still 302.0MB. Free memory was 192.0MB in the beginning and 188.8MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-23 14:58:11,298 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.64ms. Allocated memory is still 146.8MB. Free memory is still 93.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 617.12ms. Allocated memory is still 146.8MB. Free memory was 107.4MB in the beginning and 85.7MB in the end (delta: 21.7MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 54.23ms. Allocated memory is still 146.8MB. Free memory was 85.7MB in the beginning and 83.2MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 36.80ms. Allocated memory is still 146.8MB. Free memory was 83.2MB in the beginning and 81.2MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 771.85ms. Allocated memory was 146.8MB in the beginning and 209.7MB in the end (delta: 62.9MB). Free memory was 81.2MB in the beginning and 174.4MB in the end (delta: -93.2MB). Peak memory consumption was 32.3MB. Max. memory is 16.1GB. * TraceAbstraction took 30928.19ms. Allocated memory was 209.7MB in the beginning and 302.0MB in the end (delta: 92.3MB). Free memory was 174.4MB in the beginning and 192.0MB in the end (delta: -17.6MB). Peak memory consumption was 179.0MB. Max. memory is 16.1GB. * Witness Printer took 61.75ms. Allocated memory is still 302.0MB. Free memory was 192.0MB in the beginning and 188.8MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 659]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 659]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 667]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 667]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 33 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 30.8s, OverallIterations: 11, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 3.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 1.4s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 286 SdHoareTripleChecker+Valid, 1.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 280 mSDsluCounter, 868 SdHoareTripleChecker+Invalid, 1.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 169 IncrementalHoareTripleChecker+Unchecked, 657 mSDsCounter, 91 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1500 IncrementalHoareTripleChecker+Invalid, 1760 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 91 mSolverCounterUnsat, 211 mSDtfsCounter, 1500 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 328 GetRequests, 102 SyntacticMatches, 1 SemanticMatches, 225 ConstructedPredicates, 5 IntricatePredicates, 0 DeprecatedPredicates, 2761 ImplicationChecksByTransitivity, 17.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=37occurred in iteration=9, InterpolantAutomatonStates: 112, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 11 MinimizatonAttempts, 28 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 14 LocationsWithAnnotation, 55 PreInvPairs, 73 NumberOfFragments, 727 HoareAnnotationTreeSize, 55 FomulaSimplifications, 389 FormulaSimplificationTreeSizeReduction, 0.2s HoareSimplificationTime, 14 FomulaSimplificationsInter, 2928 FormulaSimplificationTreeSizeReductionInter, 1.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 7.7s InterpolantComputationTime, 325 NumberOfCodeBlocks, 325 NumberOfCodeBlocksAsserted, 16 NumberOfCheckSat, 334 ConstructedInterpolants, 6 QuantifiedInterpolants, 1623 SizeOfPredicates, 253 NumberOfNonLiveVariables, 1370 ConjunctsInSsa, 575 ConjunctsInUnsatCore, 17 InterpolantComputations, 9 PerfectInterpolantSequences, 9/28 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 4 specifications checked. All of them hold - InvariantResult [Line: 738]: Loop Invariant Derived loop invariant: (((((((((unknown-#memory_int-unknown[kobj][12 + kobj] <= 1 && 0 == kobj) && kobj == kobj) && 0 == \result) && kobj == kobj) && unknown-#memory_int-unknown[\result][12] <= 1) && 1 <= unknown-#memory_int-unknown[kobj][12 + kobj]) && 1 <= unknown-#memory_int-unknown[\result][12]) && !(kobj == 0)) && (!(kobj == 0) || !(kobj == 0))) || (0 == \result && \result == 0) - InvariantResult [Line: 667]: Loop Invariant Derived loop invariant: ((((!(#in~kobj == 0) || !(\old(unknown-#memory_int-unknown)[#in~kobj][#in~kobj + 12] < 2147483649)) || !(2 <= \old(unknown-#memory_int-unknown)[#in~kobj][12])) || (((((v == #in~kobj + 12 && kobj == #in~kobj) && unknown-#memory_int-unknown[v][v] <= temp) && i <= 1) && v == #in~kobj) && kobj == 0)) && (!(#in~kobj == 0) || !(#in~kobj == 0))) && (((!(#in~kobj == 0) || !(1 <= \old(unknown-#memory_int-unknown)[#in~kobj][12])) || !(\old(unknown-#memory_int-unknown)[#in~kobj][#in~kobj + 12] < 2147483649)) || ((unknown-#memory_int-unknown == \old(unknown-#memory_int-unknown) && temp <= i + 2147483647) && unknown-#memory_int-unknown[kobj][12 + kobj] < 2147483649)) - InvariantResult [Line: -1]: Loop Invariant Derived loop invariant: 0 == kobj && !(kobj == 0) - InvariantResult [Line: 728]: Loop Invariant Derived loop invariant: (((((unknown-#memory_int-unknown[kobj][12 + kobj] <= 1 && 0 == kobj) && kobj == kobj) && kobj == kobj) && 1 <= unknown-#memory_int-unknown[kobj][12 + kobj]) && !(kobj == 0)) && (!(kobj == 0) || !(kobj == 0)) - InvariantResult [Line: 659]: Loop Invariant Derived loop invariant: ((((((((((((((((((((unknown-#memory_int-unknown[kobj][12 + kobj] <= 1 && 0 == kobj) && kobj == kobj) && temp <= 1) && 0 == \result) && kobj == kobj) && i <= 1) && unknown-#memory_int-unknown[\result][12] <= 1) && 1 <= unknown-#memory_int-unknown[kobj][12 + kobj]) && !(kobj == 0)) && 1 <= unknown-#memory_int-unknown[\result][12]) && kobj == 0) && !(\result == 0)) && 1 <= unknown-#memory_int-unknown[kobj][12]) && kobj == 0) && kobj + 12 == v) && !(kobj == 0)) && unknown-#memory_int-unknown[v][v] <= temp) && v == kobj) && 1 <= i) && kobj == kobj) && (!(kobj == 0) || !(kobj == 0)) - InvariantResult [Line: 721]: Loop Invariant Derived loop invariant: (((((unknown-#memory_int-unknown[kobj][12 + kobj] <= 1 && 0 == kobj) && kobj == kobj) && kobj == kobj) && 1 <= unknown-#memory_int-unknown[kobj][12 + kobj]) && !(kobj == 0)) && (!(kobj == 0) || !(kobj == 0)) - InvariantResult [Line: 717]: Loop Invariant Derived loop invariant: (((0 == \result && kobj == 0) && kobj == 0) && \result == 0) || ((((((((((((((((((0 == kobj && kobj == kobj) && 0 == \result) && kobj == kobj) && unknown-#memory_int-unknown[kobj][kobj + 12] < 2147483649) && 1 <= unknown-#memory_int-unknown[kobj][12 + kobj]) && !(kobj == 0)) && 1 <= unknown-#memory_int-unknown[\result][12]) && kobj == 0) && !(\result == 0)) && kobj == 0) && kobj + 12 == v) && !(kobj == 0)) && unknown-#memory_int-unknown[v][v] <= temp) && v == kobj) && 1 <= i) && kobj == kobj) && 2 <= unknown-#memory_int-unknown[kobj][12]) && (!(kobj == 0) || !(kobj == 0))) RESULT: Ultimate proved your program to be correct! [2022-11-23 14:58:11,331 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ffe92ed-b275-489e-b740-0d2d70277d0c/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE