./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/goblint-regression/06-symbeq_15-list_entry_nr.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a0aa922-f35f-4c08-9423-fb1225dc50f3/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a0aa922-f35f-4c08-9423-fb1225dc50f3/bin/utaipan-gh47qXpMRh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a0aa922-f35f-4c08-9423-fb1225dc50f3/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a0aa922-f35f-4c08-9423-fb1225dc50f3/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/goblint-regression/06-symbeq_15-list_entry_nr.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a0aa922-f35f-4c08-9423-fb1225dc50f3/bin/utaipan-gh47qXpMRh/config/svcomp-Overflow-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a0aa922-f35f-4c08-9423-fb1225dc50f3/bin/utaipan-gh47qXpMRh --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 23d465ba9caf460ed15aca3aec6b262b1ee2c4f0003cc0e5fbc446c20cfe164a --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-2329fc7 [2022-12-14 06:49:53,040 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 06:49:53,041 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 06:49:53,058 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 06:49:53,058 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 06:49:53,058 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 06:49:53,059 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 06:49:53,060 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 06:49:53,061 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 06:49:53,062 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 06:49:53,062 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 06:49:53,063 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 06:49:53,063 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 06:49:53,064 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 06:49:53,065 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 06:49:53,065 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 06:49:53,066 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 06:49:53,066 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 06:49:53,067 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 06:49:53,068 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 06:49:53,069 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 06:49:53,070 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 06:49:53,071 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 06:49:53,072 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 06:49:53,074 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 06:49:53,074 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 06:49:53,074 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 06:49:53,075 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 06:49:53,075 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 06:49:53,075 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 06:49:53,076 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 06:49:53,076 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 06:49:53,077 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 06:49:53,077 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 06:49:53,078 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 06:49:53,078 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 06:49:53,079 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 06:49:53,079 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 06:49:53,079 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 06:49:53,080 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 06:49:53,080 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 06:49:53,081 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a0aa922-f35f-4c08-9423-fb1225dc50f3/bin/utaipan-gh47qXpMRh/config/svcomp-Overflow-32bit-Taipan_Default.epf [2022-12-14 06:49:53,099 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 06:49:53,099 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 06:49:53,099 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 06:49:53,099 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 06:49:53,100 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 06:49:53,100 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 06:49:53,100 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 06:49:53,100 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 06:49:53,100 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 06:49:53,100 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-12-14 06:49:53,100 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 06:49:53,101 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 06:49:53,101 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-12-14 06:49:53,101 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-12-14 06:49:53,101 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 06:49:53,101 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-12-14 06:49:53,101 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-12-14 06:49:53,101 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-12-14 06:49:53,102 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 06:49:53,102 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-14 06:49:53,102 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-14 06:49:53,102 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 06:49:53,102 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-14 06:49:53,102 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 06:49:53,103 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 06:49:53,103 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 06:49:53,103 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 06:49:53,103 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-12-14 06:49:53,103 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-14 06:49:53,103 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 06:49:53,103 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 06:49:53,103 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 06:49:53,103 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 06:49:53,104 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 06:49:53,104 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 06:49:53,104 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 06:49:53,104 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-12-14 06:49:53,104 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 06:49:53,104 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 06:49:53,104 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-12-14 06:49:53,104 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 06:49:53,105 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 06:49:53,105 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 06:49:53,105 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_3a0aa922-f35f-4c08-9423-fb1225dc50f3/bin/utaipan-gh47qXpMRh/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a0aa922-f35f-4c08-9423-fb1225dc50f3/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 23d465ba9caf460ed15aca3aec6b262b1ee2c4f0003cc0e5fbc446c20cfe164a [2022-12-14 06:49:53,265 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 06:49:53,285 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 06:49:53,287 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 06:49:53,288 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 06:49:53,289 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 06:49:53,290 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a0aa922-f35f-4c08-9423-fb1225dc50f3/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/goblint-regression/06-symbeq_15-list_entry_nr.i [2022-12-14 06:49:55,841 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 06:49:56,027 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 06:49:56,027 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a0aa922-f35f-4c08-9423-fb1225dc50f3/sv-benchmarks/c/goblint-regression/06-symbeq_15-list_entry_nr.i [2022-12-14 06:49:56,038 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a0aa922-f35f-4c08-9423-fb1225dc50f3/bin/utaipan-gh47qXpMRh/data/eb909a3b3/3de2e82fb5244e9cb0cfebadb49719db/FLAGd23cba9c6 [2022-12-14 06:49:56,394 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a0aa922-f35f-4c08-9423-fb1225dc50f3/bin/utaipan-gh47qXpMRh/data/eb909a3b3/3de2e82fb5244e9cb0cfebadb49719db [2022-12-14 06:49:56,396 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 06:49:56,398 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 06:49:56,399 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 06:49:56,399 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 06:49:56,403 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 06:49:56,404 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 06:49:56" (1/1) ... [2022-12-14 06:49:56,405 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@374de352 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:49:56, skipping insertion in model container [2022-12-14 06:49:56,405 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 06:49:56" (1/1) ... [2022-12-14 06:49:56,412 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 06:49:56,445 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 06:49:56,902 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 06:49:56,909 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 06:49:56,958 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 06:49:57,029 INFO L208 MainTranslator]: Completed translation [2022-12-14 06:49:57,029 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:49:57 WrapperNode [2022-12-14 06:49:57,029 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 06:49:57,030 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 06:49:57,030 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 06:49:57,030 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 06:49:57,038 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:49:57" (1/1) ... [2022-12-14 06:49:57,053 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:49:57" (1/1) ... [2022-12-14 06:49:57,072 INFO L138 Inliner]: procedures = 365, calls = 15, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 56 [2022-12-14 06:49:57,072 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 06:49:57,073 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 06:49:57,073 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 06:49:57,073 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 06:49:57,081 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:49:57" (1/1) ... [2022-12-14 06:49:57,081 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:49:57" (1/1) ... [2022-12-14 06:49:57,084 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:49:57" (1/1) ... [2022-12-14 06:49:57,084 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:49:57" (1/1) ... [2022-12-14 06:49:57,091 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:49:57" (1/1) ... [2022-12-14 06:49:57,092 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:49:57" (1/1) ... [2022-12-14 06:49:57,093 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:49:57" (1/1) ... [2022-12-14 06:49:57,094 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:49:57" (1/1) ... [2022-12-14 06:49:57,096 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 06:49:57,097 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 06:49:57,097 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 06:49:57,098 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 06:49:57,098 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:49:57" (1/1) ... [2022-12-14 06:49:57,104 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 06:49:57,113 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a0aa922-f35f-4c08-9423-fb1225dc50f3/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 06:49:57,123 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a0aa922-f35f-4c08-9423-fb1225dc50f3/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 06:49:57,125 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a0aa922-f35f-4c08-9423-fb1225dc50f3/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 06:49:57,155 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-14 06:49:57,155 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-14 06:49:57,156 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-14 06:49:57,156 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-14 06:49:57,156 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-12-14 06:49:57,156 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-12-14 06:49:57,156 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-12-14 06:49:57,156 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-12-14 06:49:57,156 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 06:49:57,156 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 06:49:57,157 WARN L209 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-12-14 06:49:57,249 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 06:49:57,250 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 06:49:57,363 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 06:49:57,368 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 06:49:57,368 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-14 06:49:57,369 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 06:49:57 BoogieIcfgContainer [2022-12-14 06:49:57,369 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 06:49:57,371 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 06:49:57,371 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 06:49:57,373 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 06:49:57,373 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 06:49:56" (1/3) ... [2022-12-14 06:49:57,374 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5fa51ec5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 06:49:57, skipping insertion in model container [2022-12-14 06:49:57,374 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:49:57" (2/3) ... [2022-12-14 06:49:57,374 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5fa51ec5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 06:49:57, skipping insertion in model container [2022-12-14 06:49:57,374 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 06:49:57" (3/3) ... [2022-12-14 06:49:57,375 INFO L112 eAbstractionObserver]: Analyzing ICFG 06-symbeq_15-list_entry_nr.i [2022-12-14 06:49:57,383 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-12-14 06:49:57,394 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 06:49:57,394 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2022-12-14 06:49:57,394 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-14 06:49:57,441 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-12-14 06:49:57,463 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-14 06:49:57,473 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 77 places, 73 transitions, 151 flow [2022-12-14 06:49:57,475 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 77 places, 73 transitions, 151 flow [2022-12-14 06:49:57,476 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 77 places, 73 transitions, 151 flow [2022-12-14 06:49:57,505 INFO L130 PetriNetUnfolder]: 0/72 cut-off events. [2022-12-14 06:49:57,505 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-14 06:49:57,507 INFO L83 FinitePrefix]: Finished finitePrefix Result has 76 conditions, 72 events. 0/72 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 50 event pairs, 0 based on Foata normal form. 0/68 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2022-12-14 06:49:57,508 INFO L119 LiptonReduction]: Number of co-enabled transitions 1092 [2022-12-14 06:49:59,270 INFO L134 LiptonReduction]: Checked pairs total: 1580 [2022-12-14 06:49:59,271 INFO L136 LiptonReduction]: Total number of compositions: 66 [2022-12-14 06:49:59,277 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 19 places, 15 transitions, 35 flow [2022-12-14 06:49:59,287 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 45 states, 36 states have (on average 2.0555555555555554) internal successors, (74), 44 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:49:59,298 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 06:49:59,302 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;@37278646, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 06:49:59,303 INFO L358 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2022-12-14 06:49:59,304 INFO L276 IsEmpty]: Start isEmpty. Operand has 45 states, 36 states have (on average 2.0555555555555554) internal successors, (74), 44 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:49:59,307 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-12-14 06:49:59,307 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 06:49:59,307 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-12-14 06:49:59,308 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-14 06:49:59,311 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 06:49:59,311 INFO L85 PathProgramCache]: Analyzing trace with hash 8155726, now seen corresponding path program 1 times [2022-12-14 06:49:59,318 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 06:49:59,318 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1351247747] [2022-12-14 06:49:59,318 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:49:59,318 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 06:49:59,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:49:59,713 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 06:49:59,713 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 06:49:59,713 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1351247747] [2022-12-14 06:49:59,714 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1351247747] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 06:49:59,714 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 06:49:59,714 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 06:49:59,715 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1176375809] [2022-12-14 06:49:59,716 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 06:49:59,719 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 06:49:59,719 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 06:49:59,735 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 06:49:59,735 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 06:49:59,737 INFO L87 Difference]: Start difference. First operand has 45 states, 36 states have (on average 2.0555555555555554) internal successors, (74), 44 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:49:59,794 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 06:49:59,794 INFO L93 Difference]: Finished difference Result 40 states and 64 transitions. [2022-12-14 06:49:59,795 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 06:49:59,796 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4 [2022-12-14 06:49:59,796 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 06:49:59,801 INFO L225 Difference]: With dead ends: 40 [2022-12-14 06:49:59,802 INFO L226 Difference]: Without dead ends: 37 [2022-12-14 06:49:59,802 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-14 06:49:59,804 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 13 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 06:49:59,805 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 0 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 06:49:59,817 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2022-12-14 06:49:59,824 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37. [2022-12-14 06:49:59,825 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37 states, 31 states have (on average 1.8709677419354838) internal successors, (58), 36 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:49:59,826 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 58 transitions. [2022-12-14 06:49:59,827 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 58 transitions. Word has length 4 [2022-12-14 06:49:59,827 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 06:49:59,827 INFO L495 AbstractCegarLoop]: Abstraction has 37 states and 58 transitions. [2022-12-14 06:49:59,827 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:49:59,827 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 58 transitions. [2022-12-14 06:49:59,827 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-12-14 06:49:59,827 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 06:49:59,827 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-12-14 06:49:59,828 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-14 06:49:59,828 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-14 06:49:59,828 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 06:49:59,828 INFO L85 PathProgramCache]: Analyzing trace with hash 8155732, now seen corresponding path program 1 times [2022-12-14 06:49:59,828 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 06:49:59,828 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [490815679] [2022-12-14 06:49:59,828 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:49:59,829 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 06:49:59,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:49:59,973 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 06:49:59,974 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 06:49:59,974 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [490815679] [2022-12-14 06:49:59,974 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [490815679] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 06:49:59,974 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 06:49:59,974 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 06:49:59,975 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1881901522] [2022-12-14 06:49:59,975 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 06:49:59,976 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 06:49:59,976 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 06:49:59,977 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 06:49:59,977 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 06:49:59,977 INFO L87 Difference]: Start difference. First operand 37 states and 58 transitions. Second operand has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:50:00,024 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 06:50:00,025 INFO L93 Difference]: Finished difference Result 32 states and 48 transitions. [2022-12-14 06:50:00,025 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 06:50:00,025 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4 [2022-12-14 06:50:00,025 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 06:50:00,026 INFO L225 Difference]: With dead ends: 32 [2022-12-14 06:50:00,026 INFO L226 Difference]: Without dead ends: 32 [2022-12-14 06:50:00,026 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-14 06:50:00,027 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 11 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 06:50:00,028 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 0 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 06:50:00,029 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2022-12-14 06:50:00,031 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 32. [2022-12-14 06:50:00,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32 states, 28 states have (on average 1.7142857142857142) internal successors, (48), 31 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:50:00,032 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 48 transitions. [2022-12-14 06:50:00,032 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 48 transitions. Word has length 4 [2022-12-14 06:50:00,032 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 06:50:00,033 INFO L495 AbstractCegarLoop]: Abstraction has 32 states and 48 transitions. [2022-12-14 06:50:00,033 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:50:00,033 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 48 transitions. [2022-12-14 06:50:00,033 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-12-14 06:50:00,033 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 06:50:00,033 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-12-14 06:50:00,033 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-14 06:50:00,034 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-14 06:50:00,034 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 06:50:00,034 INFO L85 PathProgramCache]: Analyzing trace with hash 8155754, now seen corresponding path program 1 times [2022-12-14 06:50:00,034 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 06:50:00,034 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1856225449] [2022-12-14 06:50:00,035 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:50:00,035 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 06:50:00,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:50:00,162 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 06:50:00,163 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 06:50:00,163 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1856225449] [2022-12-14 06:50:00,163 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1856225449] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 06:50:00,163 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 06:50:00,163 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 06:50:00,163 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [93512548] [2022-12-14 06:50:00,163 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 06:50:00,164 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 06:50:00,164 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 06:50:00,164 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 06:50:00,164 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 06:50:00,165 INFO L87 Difference]: Start difference. First operand 32 states and 48 transitions. Second operand has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:50:00,209 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 06:50:00,209 INFO L93 Difference]: Finished difference Result 29 states and 42 transitions. [2022-12-14 06:50:00,210 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 06:50:00,210 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4 [2022-12-14 06:50:00,210 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 06:50:00,210 INFO L225 Difference]: With dead ends: 29 [2022-12-14 06:50:00,211 INFO L226 Difference]: Without dead ends: 29 [2022-12-14 06:50:00,211 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-14 06:50:00,212 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 9 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 06:50:00,212 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 0 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 06:50:00,213 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2022-12-14 06:50:00,215 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2022-12-14 06:50:00,215 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29 states, 25 states have (on average 1.68) internal successors, (42), 28 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:50:00,215 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 42 transitions. [2022-12-14 06:50:00,216 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 42 transitions. Word has length 4 [2022-12-14 06:50:00,216 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 06:50:00,216 INFO L495 AbstractCegarLoop]: Abstraction has 29 states and 42 transitions. [2022-12-14 06:50:00,216 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:50:00,216 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 42 transitions. [2022-12-14 06:50:00,216 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-12-14 06:50:00,216 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 06:50:00,217 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-12-14 06:50:00,217 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-14 06:50:00,217 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-14 06:50:00,217 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 06:50:00,217 INFO L85 PathProgramCache]: Analyzing trace with hash 8155770, now seen corresponding path program 1 times [2022-12-14 06:50:00,218 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 06:50:00,218 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [669432202] [2022-12-14 06:50:00,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:50:00,218 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 06:50:00,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:50:00,340 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 06:50:00,340 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 06:50:00,340 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [669432202] [2022-12-14 06:50:00,340 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [669432202] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 06:50:00,340 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 06:50:00,341 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 06:50:00,341 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [203110336] [2022-12-14 06:50:00,341 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 06:50:00,341 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 06:50:00,341 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 06:50:00,342 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 06:50:00,342 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 06:50:00,342 INFO L87 Difference]: Start difference. First operand 29 states and 42 transitions. Second operand has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:50:00,386 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 06:50:00,386 INFO L93 Difference]: Finished difference Result 26 states and 36 transitions. [2022-12-14 06:50:00,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 06:50:00,387 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4 [2022-12-14 06:50:00,387 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 06:50:00,387 INFO L225 Difference]: With dead ends: 26 [2022-12-14 06:50:00,387 INFO L226 Difference]: Without dead ends: 26 [2022-12-14 06:50:00,387 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-14 06:50:00,388 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 7 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 06:50:00,388 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 0 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 06:50:00,389 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2022-12-14 06:50:00,390 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 26. [2022-12-14 06:50:00,390 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26 states, 22 states have (on average 1.6363636363636365) internal successors, (36), 25 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:50:00,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 36 transitions. [2022-12-14 06:50:00,390 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 36 transitions. Word has length 4 [2022-12-14 06:50:00,390 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 06:50:00,390 INFO L495 AbstractCegarLoop]: Abstraction has 26 states and 36 transitions. [2022-12-14 06:50:00,391 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:50:00,391 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 36 transitions. [2022-12-14 06:50:00,391 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-12-14 06:50:00,391 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 06:50:00,391 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-12-14 06:50:00,391 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-14 06:50:00,391 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-14 06:50:00,391 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 06:50:00,392 INFO L85 PathProgramCache]: Analyzing trace with hash -1845156593, now seen corresponding path program 1 times [2022-12-14 06:50:00,392 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 06:50:00,392 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1265859329] [2022-12-14 06:50:00,392 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:50:00,392 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 06:50:00,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:50:00,545 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 06:50:00,546 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 06:50:00,546 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1265859329] [2022-12-14 06:50:00,546 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1265859329] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 06:50:00,546 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 06:50:00,546 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 06:50:00,546 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1358793724] [2022-12-14 06:50:00,546 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 06:50:00,547 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 06:50:00,547 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 06:50:00,547 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 06:50:00,547 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-12-14 06:50:00,547 INFO L87 Difference]: Start difference. First operand 26 states and 36 transitions. Second operand has 4 states, 4 states have (on average 1.75) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:50:00,579 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 06:50:00,580 INFO L93 Difference]: Finished difference Result 29 states and 35 transitions. [2022-12-14 06:50:00,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 06:50:00,580 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 1.75) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2022-12-14 06:50:00,580 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 06:50:00,580 INFO L225 Difference]: With dead ends: 29 [2022-12-14 06:50:00,581 INFO L226 Difference]: Without dead ends: 29 [2022-12-14 06:50:00,581 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-12-14 06:50:00,581 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 17 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 06:50:00,581 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 0 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 06:50:00,582 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2022-12-14 06:50:00,583 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 26. [2022-12-14 06:50:00,583 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26 states, 22 states have (on average 1.5) internal successors, (33), 25 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:50:00,583 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 33 transitions. [2022-12-14 06:50:00,583 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 33 transitions. Word has length 7 [2022-12-14 06:50:00,584 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 06:50:00,584 INFO L495 AbstractCegarLoop]: Abstraction has 26 states and 33 transitions. [2022-12-14 06:50:00,584 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1.75) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:50:00,584 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 33 transitions. [2022-12-14 06:50:00,584 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-12-14 06:50:00,584 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 06:50:00,584 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-12-14 06:50:00,584 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-14 06:50:00,584 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-14 06:50:00,585 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 06:50:00,585 INFO L85 PathProgramCache]: Analyzing trace with hash -1844868293, now seen corresponding path program 2 times [2022-12-14 06:50:00,585 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 06:50:00,585 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [873704252] [2022-12-14 06:50:00,585 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:50:00,585 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 06:50:00,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:50:00,700 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 06:50:00,700 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 06:50:00,700 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [873704252] [2022-12-14 06:50:00,701 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [873704252] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 06:50:00,701 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 06:50:00,701 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 06:50:00,701 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1833446549] [2022-12-14 06:50:00,701 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 06:50:00,701 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 06:50:00,701 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 06:50:00,702 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 06:50:00,702 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-12-14 06:50:00,702 INFO L87 Difference]: Start difference. First operand 26 states and 33 transitions. Second operand has 4 states, 4 states have (on average 1.75) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:50:00,725 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 06:50:00,725 INFO L93 Difference]: Finished difference Result 17 states and 16 transitions. [2022-12-14 06:50:00,725 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 06:50:00,725 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 1.75) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2022-12-14 06:50:00,726 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 06:50:00,726 INFO L225 Difference]: With dead ends: 17 [2022-12-14 06:50:00,726 INFO L226 Difference]: Without dead ends: 17 [2022-12-14 06:50:00,726 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-12-14 06:50:00,727 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 10 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 06:50:00,727 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 0 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 06:50:00,728 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2022-12-14 06:50:00,728 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2022-12-14 06:50:00,729 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17 states, 13 states have (on average 1.2307692307692308) internal successors, (16), 16 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:50:00,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 16 transitions. [2022-12-14 06:50:00,729 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 16 transitions. Word has length 7 [2022-12-14 06:50:00,729 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 06:50:00,729 INFO L495 AbstractCegarLoop]: Abstraction has 17 states and 16 transitions. [2022-12-14 06:50:00,729 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1.75) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:50:00,729 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 16 transitions. [2022-12-14 06:50:00,729 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-12-14 06:50:00,729 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 06:50:00,729 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 06:50:00,729 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-12-14 06:50:00,730 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-14 06:50:00,730 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 06:50:00,730 INFO L85 PathProgramCache]: Analyzing trace with hash -1375482663, now seen corresponding path program 1 times [2022-12-14 06:50:00,730 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 06:50:00,730 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1287383099] [2022-12-14 06:50:00,730 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:50:00,730 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 06:50:00,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:50:00,945 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 06:50:00,945 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 06:50:00,946 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1287383099] [2022-12-14 06:50:00,946 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1287383099] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 06:50:00,946 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 06:50:00,946 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-14 06:50:00,946 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1459020375] [2022-12-14 06:50:00,946 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 06:50:00,946 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-14 06:50:00,946 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 06:50:00,947 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-14 06:50:00,947 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2022-12-14 06:50:00,947 INFO L87 Difference]: Start difference. First operand 17 states and 16 transitions. Second operand has 8 states, 7 states have (on average 1.1428571428571428) internal successors, (8), 7 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:50:01,015 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 06:50:01,015 INFO L93 Difference]: Finished difference Result 16 states and 15 transitions. [2022-12-14 06:50:01,016 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-14 06:50:01,016 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 1.1428571428571428) internal successors, (8), 7 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2022-12-14 06:50:01,016 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 06:50:01,016 INFO L225 Difference]: With dead ends: 16 [2022-12-14 06:50:01,016 INFO L226 Difference]: Without dead ends: 16 [2022-12-14 06:50:01,016 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2022-12-14 06:50:01,017 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 19 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 06:50:01,017 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 0 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 06:50:01,017 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2022-12-14 06:50:01,018 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2022-12-14 06:50:01,018 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 13 states have (on average 1.1538461538461537) internal successors, (15), 15 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:50:01,018 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 15 transitions. [2022-12-14 06:50:01,018 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 15 transitions. Word has length 8 [2022-12-14 06:50:01,018 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 06:50:01,018 INFO L495 AbstractCegarLoop]: Abstraction has 16 states and 15 transitions. [2022-12-14 06:50:01,018 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 1.1428571428571428) internal successors, (8), 7 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:50:01,018 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 15 transitions. [2022-12-14 06:50:01,019 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-12-14 06:50:01,019 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 06:50:01,019 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 06:50:01,019 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-12-14 06:50:01,019 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-14 06:50:01,019 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 06:50:01,019 INFO L85 PathProgramCache]: Analyzing trace with hash -1375482647, now seen corresponding path program 1 times [2022-12-14 06:50:01,019 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 06:50:01,019 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [672835078] [2022-12-14 06:50:01,019 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:50:01,019 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 06:50:01,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:50:01,256 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 06:50:01,256 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 06:50:01,256 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [672835078] [2022-12-14 06:50:01,257 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [672835078] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 06:50:01,257 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 06:50:01,257 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-14 06:50:01,257 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1657178223] [2022-12-14 06:50:01,257 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 06:50:01,257 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-14 06:50:01,257 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 06:50:01,258 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-14 06:50:01,258 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2022-12-14 06:50:01,258 INFO L87 Difference]: Start difference. First operand 16 states and 15 transitions. Second operand has 8 states, 7 states have (on average 1.1428571428571428) internal successors, (8), 7 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:50:01,326 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 06:50:01,326 INFO L93 Difference]: Finished difference Result 15 states and 14 transitions. [2022-12-14 06:50:01,326 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-14 06:50:01,327 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 1.1428571428571428) internal successors, (8), 7 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2022-12-14 06:50:01,327 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 06:50:01,327 INFO L225 Difference]: With dead ends: 15 [2022-12-14 06:50:01,327 INFO L226 Difference]: Without dead ends: 10 [2022-12-14 06:50:01,327 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2022-12-14 06:50:01,328 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 8 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 57 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 57 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 57 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 06:50:01,328 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 0 Invalid, 57 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 57 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 06:50:01,328 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states. [2022-12-14 06:50:01,329 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 10. [2022-12-14 06:50:01,329 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10 states, 8 states have (on average 1.125) internal successors, (9), 9 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:50:01,329 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 9 transitions. [2022-12-14 06:50:01,329 INFO L78 Accepts]: Start accepts. Automaton has 10 states and 9 transitions. Word has length 8 [2022-12-14 06:50:01,329 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 06:50:01,329 INFO L495 AbstractCegarLoop]: Abstraction has 10 states and 9 transitions. [2022-12-14 06:50:01,329 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 1.1428571428571428) internal successors, (8), 7 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:50:01,329 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 9 transitions. [2022-12-14 06:50:01,329 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-12-14 06:50:01,329 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 06:50:01,330 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 06:50:01,330 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-12-14 06:50:01,330 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-14 06:50:01,330 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 06:50:01,330 INFO L85 PathProgramCache]: Analyzing trace with hash -1356719166, now seen corresponding path program 1 times [2022-12-14 06:50:01,330 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 06:50:01,330 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1805120637] [2022-12-14 06:50:01,330 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:50:01,330 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 06:50:01,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:50:01,504 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 06:50:01,504 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 06:50:01,504 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1805120637] [2022-12-14 06:50:01,504 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1805120637] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 06:50:01,505 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 06:50:01,505 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-14 06:50:01,505 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2107278631] [2022-12-14 06:50:01,505 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 06:50:01,505 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-14 06:50:01,505 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 06:50:01,506 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-14 06:50:01,506 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2022-12-14 06:50:01,506 INFO L87 Difference]: Start difference. First operand 10 states and 9 transitions. Second operand has 8 states, 7 states have (on average 1.1428571428571428) internal successors, (8), 7 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:50:01,544 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 06:50:01,544 INFO L93 Difference]: Finished difference Result 9 states and 8 transitions. [2022-12-14 06:50:01,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 06:50:01,545 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 1.1428571428571428) internal successors, (8), 7 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2022-12-14 06:50:01,545 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 06:50:01,545 INFO L225 Difference]: With dead ends: 9 [2022-12-14 06:50:01,545 INFO L226 Difference]: Without dead ends: 9 [2022-12-14 06:50:01,545 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2022-12-14 06:50:01,546 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 13 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 06:50:01,546 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 0 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 06:50:01,546 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states. [2022-12-14 06:50:01,546 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 9. [2022-12-14 06:50:01,547 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 8 states have (on average 1.0) internal successors, (8), 8 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:50:01,547 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 8 transitions. [2022-12-14 06:50:01,547 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 8 transitions. Word has length 8 [2022-12-14 06:50:01,547 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 06:50:01,547 INFO L495 AbstractCegarLoop]: Abstraction has 9 states and 8 transitions. [2022-12-14 06:50:01,547 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 1.1428571428571428) internal successors, (8), 7 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:50:01,547 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 8 transitions. [2022-12-14 06:50:01,547 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-12-14 06:50:01,547 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 06:50:01,547 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 06:50:01,547 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-12-14 06:50:01,548 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-14 06:50:01,548 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 06:50:01,548 INFO L85 PathProgramCache]: Analyzing trace with hash -1356719160, now seen corresponding path program 1 times [2022-12-14 06:50:01,548 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 06:50:01,548 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1996121165] [2022-12-14 06:50:01,548 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:50:01,548 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 06:50:01,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:50:01,773 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 06:50:01,773 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 06:50:01,773 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1996121165] [2022-12-14 06:50:01,773 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1996121165] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 06:50:01,773 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 06:50:01,773 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-14 06:50:01,773 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1960821361] [2022-12-14 06:50:01,773 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 06:50:01,773 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-14 06:50:01,773 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 06:50:01,774 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-14 06:50:01,774 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2022-12-14 06:50:01,774 INFO L87 Difference]: Start difference. First operand 9 states and 8 transitions. Second operand has 8 states, 7 states have (on average 1.1428571428571428) internal successors, (8), 7 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:50:01,808 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 06:50:01,808 INFO L93 Difference]: Finished difference Result 8 states and 7 transitions. [2022-12-14 06:50:01,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-14 06:50:01,808 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 1.1428571428571428) internal successors, (8), 7 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2022-12-14 06:50:01,809 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 06:50:01,809 INFO L225 Difference]: With dead ends: 8 [2022-12-14 06:50:01,809 INFO L226 Difference]: Without dead ends: 0 [2022-12-14 06:50:01,809 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-12-14 06:50:01,809 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 5 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 06:50:01,809 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 0 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 06:50:01,810 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-12-14 06:50:01,810 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-12-14 06:50:01,810 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:50:01,810 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-12-14 06:50:01,810 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 8 [2022-12-14 06:50:01,810 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 06:50:01,810 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-12-14 06:50:01,810 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 1.1428571428571428) internal successors, (8), 7 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:50:01,810 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-12-14 06:50:01,810 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-12-14 06:50:01,812 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 7 remaining) [2022-12-14 06:50:01,812 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 7 remaining) [2022-12-14 06:50:01,812 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 7 remaining) [2022-12-14 06:50:01,812 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 7 remaining) [2022-12-14 06:50:01,812 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 7 remaining) [2022-12-14 06:50:01,813 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 7 remaining) [2022-12-14 06:50:01,813 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 7 remaining) [2022-12-14 06:50:01,813 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-12-14 06:50:01,814 INFO L445 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 06:50:01,817 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-14 06:50:01,817 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-14 06:50:01,819 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.12 06:50:01 BasicIcfg [2022-12-14 06:50:01,819 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-14 06:50:01,819 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-14 06:50:01,820 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-14 06:50:01,820 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-14 06:50:01,820 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 06:49:57" (3/4) ... [2022-12-14 06:50:01,822 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-12-14 06:50:01,826 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure t_fun [2022-12-14 06:50:01,828 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2022-12-14 06:50:01,828 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2022-12-14 06:50:01,828 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-12-14 06:50:01,847 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a0aa922-f35f-4c08-9423-fb1225dc50f3/bin/utaipan-gh47qXpMRh/witness.graphml [2022-12-14 06:50:01,847 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-14 06:50:01,847 INFO L158 Benchmark]: Toolchain (without parser) took 5449.83ms. Allocated memory was 140.5MB in the beginning and 172.0MB in the end (delta: 31.5MB). Free memory was 86.4MB in the beginning and 60.5MB in the end (delta: 25.9MB). Peak memory consumption was 59.5MB. Max. memory is 16.1GB. [2022-12-14 06:50:01,847 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 140.5MB. Free memory is still 100.8MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 06:50:01,848 INFO L158 Benchmark]: CACSL2BoogieTranslator took 630.51ms. Allocated memory is still 140.5MB. Free memory was 86.1MB in the beginning and 92.6MB in the end (delta: -6.5MB). Peak memory consumption was 23.5MB. Max. memory is 16.1GB. [2022-12-14 06:50:01,848 INFO L158 Benchmark]: Boogie Procedure Inliner took 42.19ms. Allocated memory is still 140.5MB. Free memory was 92.6MB in the beginning and 90.1MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 06:50:01,848 INFO L158 Benchmark]: Boogie Preprocessor took 23.40ms. Allocated memory is still 140.5MB. Free memory was 89.5MB in the beginning and 88.3MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 06:50:01,848 INFO L158 Benchmark]: RCFGBuilder took 272.27ms. Allocated memory is still 140.5MB. Free memory was 88.3MB in the beginning and 74.9MB in the end (delta: 13.4MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-12-14 06:50:01,848 INFO L158 Benchmark]: TraceAbstraction took 4448.15ms. Allocated memory was 140.5MB in the beginning and 172.0MB in the end (delta: 31.5MB). Free memory was 74.3MB in the beginning and 62.6MB in the end (delta: 11.7MB). Peak memory consumption was 44.3MB. Max. memory is 16.1GB. [2022-12-14 06:50:01,849 INFO L158 Benchmark]: Witness Printer took 27.45ms. Allocated memory is still 172.0MB. Free memory was 62.6MB in the beginning and 60.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 06:50:01,850 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19ms. Allocated memory is still 140.5MB. Free memory is still 100.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 630.51ms. Allocated memory is still 140.5MB. Free memory was 86.1MB in the beginning and 92.6MB in the end (delta: -6.5MB). Peak memory consumption was 23.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 42.19ms. Allocated memory is still 140.5MB. Free memory was 92.6MB in the beginning and 90.1MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 23.40ms. Allocated memory is still 140.5MB. Free memory was 89.5MB in the beginning and 88.3MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 272.27ms. Allocated memory is still 140.5MB. Free memory was 88.3MB in the beginning and 74.9MB in the end (delta: 13.4MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 4448.15ms. Allocated memory was 140.5MB in the beginning and 172.0MB in the end (delta: 31.5MB). Free memory was 74.3MB in the beginning and 62.6MB in the end (delta: 11.7MB). Peak memory consumption was 44.3MB. Max. memory is 16.1GB. * Witness Printer took 27.45ms. Allocated memory is still 172.0MB. Free memory was 62.6MB in the beginning and 60.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1.8s, 77 PlacesBefore, 19 PlacesAfterwards, 73 TransitionsBefore, 15 TransitionsAfterwards, 1092 CoEnabledTransitionPairs, 6 FixpointIterations, 23 TrivialSequentialCompositions, 43 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 66 TotalNumberOfCompositions, 1580 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1222, independent: 1116, independent conditional: 0, independent unconditional: 1116, dependent: 106, dependent conditional: 0, dependent unconditional: 106, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 773, independent: 742, independent conditional: 0, independent unconditional: 742, dependent: 31, dependent conditional: 0, dependent unconditional: 31, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 773, independent: 733, independent conditional: 0, independent unconditional: 733, dependent: 40, dependent conditional: 0, dependent unconditional: 40, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 40, independent: 9, independent conditional: 0, independent unconditional: 9, dependent: 31, dependent conditional: 0, dependent unconditional: 31, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 111, independent: 31, independent conditional: 0, independent unconditional: 31, dependent: 79, dependent conditional: 0, dependent unconditional: 79, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 1222, independent: 374, independent conditional: 0, independent unconditional: 374, dependent: 75, dependent conditional: 0, dependent unconditional: 75, unknown: 773, unknown conditional: 0, unknown unconditional: 773] , Statistics on independence cache: Total cache size (in pairs): 51, Positive cache size: 38, Positive conditional cache size: 0, Positive unconditional cache size: 38, Negative cache size: 13, Negative conditional cache size: 0, Negative unconditional cache size: 13, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 1235]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1235]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1235]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1235]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 97 locations, 7 error locations. Started 1 CEGAR loops. OverallTime: 4.4s, OverallIterations: 10, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.8s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 112 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 112 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 7 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 372 IncrementalHoareTripleChecker+Invalid, 379 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 7 mSolverCounterUnsat, 0 mSDtfsCounter, 372 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 53 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=45occurred in iteration=0, InterpolantAutomatonStates: 54, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 10 MinimizatonAttempts, 3 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.7s InterpolantComputationTime, 62 NumberOfCodeBlocks, 62 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 52 ConstructedInterpolants, 0 QuantifiedInterpolants, 560 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 10 InterpolantComputations, 10 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 4 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-12-14 06:50:01,864 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a0aa922-f35f-4c08-9423-fb1225dc50f3/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE