./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/ldv-regression/stateful_check.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 38b53e6a 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_99a4188d-af20-46e2-8273-beefe0d80159/bin/utaipan-ByfvJB40ur/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99a4188d-af20-46e2-8273-beefe0d80159/bin/utaipan-ByfvJB40ur/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99a4188d-af20-46e2-8273-beefe0d80159/bin/utaipan-ByfvJB40ur/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99a4188d-af20-46e2-8273-beefe0d80159/bin/utaipan-ByfvJB40ur/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-regression/stateful_check.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99a4188d-af20-46e2-8273-beefe0d80159/bin/utaipan-ByfvJB40ur/config/svcomp-Overflow-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99a4188d-af20-46e2-8273-beefe0d80159/bin/utaipan-ByfvJB40ur --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 86e7865b5c88aae342720e4dde014f366638a0b48b0e0f6e55acb2c675bcac3e --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-38b53e6 [2022-11-26 00:28:01,946 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-26 00:28:01,955 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-26 00:28:02,020 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-26 00:28:02,021 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-26 00:28:02,026 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-26 00:28:02,028 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-26 00:28:02,032 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-26 00:28:02,035 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-26 00:28:02,042 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-26 00:28:02,044 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-26 00:28:02,046 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-26 00:28:02,048 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-26 00:28:02,050 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-26 00:28:02,053 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-26 00:28:02,054 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-26 00:28:02,059 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-26 00:28:02,060 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-26 00:28:02,062 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-26 00:28:02,068 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-26 00:28:02,071 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-26 00:28:02,073 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-26 00:28:02,075 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-26 00:28:02,077 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-26 00:28:02,084 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-26 00:28:02,088 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-26 00:28:02,089 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-26 00:28:02,090 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-26 00:28:02,092 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-26 00:28:02,093 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-26 00:28:02,094 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-26 00:28:02,096 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-26 00:28:02,098 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-26 00:28:02,100 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-26 00:28:02,103 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-26 00:28:02,104 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-26 00:28:02,105 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-26 00:28:02,105 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-26 00:28:02,106 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-26 00:28:02,109 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-26 00:28:02,111 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-26 00:28:02,113 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99a4188d-af20-46e2-8273-beefe0d80159/bin/utaipan-ByfvJB40ur/config/svcomp-Overflow-32bit-Taipan_Default.epf [2022-11-26 00:28:02,159 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-26 00:28:02,160 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-26 00:28:02,161 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-26 00:28:02,161 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-26 00:28:02,162 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-26 00:28:02,162 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-26 00:28:02,162 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-26 00:28:02,163 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-26 00:28:02,163 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-26 00:28:02,163 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-26 00:28:02,165 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-26 00:28:02,165 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-26 00:28:02,165 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-26 00:28:02,165 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-26 00:28:02,166 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-26 00:28:02,166 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-26 00:28:02,166 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-26 00:28:02,167 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-26 00:28:02,168 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-26 00:28:02,168 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-26 00:28:02,168 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-26 00:28:02,169 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-26 00:28:02,169 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-26 00:28:02,169 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-26 00:28:02,170 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-26 00:28:02,170 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-26 00:28:02,171 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-26 00:28:02,171 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-26 00:28:02,171 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-26 00:28:02,171 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-26 00:28:02,172 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-26 00:28:02,172 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-26 00:28:02,172 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-26 00:28:02,173 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-26 00:28:02,173 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-26 00:28:02,173 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-26 00:28:02,174 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-26 00:28:02,174 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-26 00:28:02,174 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-26 00:28:02,174 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-26 00:28:02,175 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-26 00:28:02,175 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-26 00:28:02,175 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-26 00:28:02,175 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_99a4188d-af20-46e2-8273-beefe0d80159/bin/utaipan-ByfvJB40ur/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99a4188d-af20-46e2-8273-beefe0d80159/bin/utaipan-ByfvJB40ur Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 86e7865b5c88aae342720e4dde014f366638a0b48b0e0f6e55acb2c675bcac3e [2022-11-26 00:28:02,522 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-26 00:28:02,564 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-26 00:28:02,568 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-26 00:28:02,570 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-26 00:28:02,571 INFO L275 PluginConnector]: CDTParser initialized [2022-11-26 00:28:02,573 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99a4188d-af20-46e2-8273-beefe0d80159/bin/utaipan-ByfvJB40ur/../../sv-benchmarks/c/ldv-regression/stateful_check.c [2022-11-26 00:28:06,055 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-26 00:28:06,349 INFO L351 CDTParser]: Found 1 translation units. [2022-11-26 00:28:06,350 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99a4188d-af20-46e2-8273-beefe0d80159/sv-benchmarks/c/ldv-regression/stateful_check.c [2022-11-26 00:28:06,358 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99a4188d-af20-46e2-8273-beefe0d80159/bin/utaipan-ByfvJB40ur/data/bc22e4f4b/0b143535212444a1b037dc7174c55278/FLAG60757bb13 [2022-11-26 00:28:06,377 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99a4188d-af20-46e2-8273-beefe0d80159/bin/utaipan-ByfvJB40ur/data/bc22e4f4b/0b143535212444a1b037dc7174c55278 [2022-11-26 00:28:06,381 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-26 00:28:06,383 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-26 00:28:06,385 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-26 00:28:06,385 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-26 00:28:06,390 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-26 00:28:06,391 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 12:28:06" (1/1) ... [2022-11-26 00:28:06,393 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5f7dedaa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:28:06, skipping insertion in model container [2022-11-26 00:28:06,393 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 12:28:06" (1/1) ... [2022-11-26 00:28:06,403 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-26 00:28:06,425 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-26 00:28:06,599 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99a4188d-af20-46e2-8273-beefe0d80159/sv-benchmarks/c/ldv-regression/stateful_check.c[298,311] [2022-11-26 00:28:06,633 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-26 00:28:06,647 INFO L203 MainTranslator]: Completed pre-run [2022-11-26 00:28:06,664 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99a4188d-af20-46e2-8273-beefe0d80159/sv-benchmarks/c/ldv-regression/stateful_check.c[298,311] [2022-11-26 00:28:06,678 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-26 00:28:06,697 INFO L208 MainTranslator]: Completed translation [2022-11-26 00:28:06,698 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:28:06 WrapperNode [2022-11-26 00:28:06,698 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-26 00:28:06,700 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-26 00:28:06,700 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-26 00:28:06,700 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-26 00:28:06,709 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:28:06" (1/1) ... [2022-11-26 00:28:06,719 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:28:06" (1/1) ... [2022-11-26 00:28:06,760 INFO L138 Inliner]: procedures = 21, calls = 20, calls flagged for inlining = 9, calls inlined = 9, statements flattened = 106 [2022-11-26 00:28:06,761 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-26 00:28:06,762 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-26 00:28:06,762 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-26 00:28:06,762 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-26 00:28:06,775 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:28:06" (1/1) ... [2022-11-26 00:28:06,777 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:28:06" (1/1) ... [2022-11-26 00:28:06,778 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:28:06" (1/1) ... [2022-11-26 00:28:06,779 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:28:06" (1/1) ... [2022-11-26 00:28:06,783 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:28:06" (1/1) ... [2022-11-26 00:28:06,787 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:28:06" (1/1) ... [2022-11-26 00:28:06,789 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:28:06" (1/1) ... [2022-11-26 00:28:06,790 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:28:06" (1/1) ... [2022-11-26 00:28:06,792 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-26 00:28:06,794 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-26 00:28:06,794 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-26 00:28:06,794 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-26 00:28:06,795 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:28:06" (1/1) ... [2022-11-26 00:28:06,804 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-26 00:28:06,820 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99a4188d-af20-46e2-8273-beefe0d80159/bin/utaipan-ByfvJB40ur/z3 [2022-11-26 00:28:06,835 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99a4188d-af20-46e2-8273-beefe0d80159/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-26 00:28:06,855 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99a4188d-af20-46e2-8273-beefe0d80159/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-26 00:28:06,903 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-26 00:28:06,903 INFO L130 BoogieDeclarations]: Found specification of procedure __blast_assert [2022-11-26 00:28:06,903 INFO L138 BoogieDeclarations]: Found implementation of procedure __blast_assert [2022-11-26 00:28:06,904 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-26 00:28:06,904 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2022-11-26 00:28:06,904 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2022-11-26 00:28:06,904 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-26 00:28:06,904 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-26 00:28:07,005 INFO L235 CfgBuilder]: Building ICFG [2022-11-26 00:28:07,008 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-26 00:28:07,393 INFO L276 CfgBuilder]: Performing block encoding [2022-11-26 00:28:07,554 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-26 00:28:07,554 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-26 00:28:07,558 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:28:07 BoogieIcfgContainer [2022-11-26 00:28:07,558 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-26 00:28:07,561 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-26 00:28:07,565 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-26 00:28:07,568 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-26 00:28:07,568 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 12:28:06" (1/3) ... [2022-11-26 00:28:07,569 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@58305f5a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 12:28:07, skipping insertion in model container [2022-11-26 00:28:07,569 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:28:06" (2/3) ... [2022-11-26 00:28:07,570 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@58305f5a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 12:28:07, skipping insertion in model container [2022-11-26 00:28:07,570 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:28:07" (3/3) ... [2022-11-26 00:28:07,571 INFO L112 eAbstractionObserver]: Analyzing ICFG stateful_check.c [2022-11-26 00:28:07,589 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-26 00:28:07,590 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2022-11-26 00:28:07,647 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-26 00:28:07,655 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;@7537870d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-26 00:28:07,655 INFO L358 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2022-11-26 00:28:07,673 INFO L276 IsEmpty]: Start isEmpty. Operand has 44 states, 29 states have (on average 1.6896551724137931) internal successors, (49), 39 states have internal predecessors, (49), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2022-11-26 00:28:07,682 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-11-26 00:28:07,682 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:28:07,683 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-11-26 00:28:07,683 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-26 00:28:07,690 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:28:07,690 INFO L85 PathProgramCache]: Analyzing trace with hash 1077931167, now seen corresponding path program 1 times [2022-11-26 00:28:07,702 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:28:07,703 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [926741822] [2022-11-26 00:28:07,703 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:28:07,704 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:28:07,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:28:08,179 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:28:08,180 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:28:08,180 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [926741822] [2022-11-26 00:28:08,181 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [926741822] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:28:08,181 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:28:08,182 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-26 00:28:08,184 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1517843194] [2022-11-26 00:28:08,185 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:28:08,204 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-26 00:28:08,204 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:28:08,258 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-26 00:28:08,260 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-26 00:28:08,263 INFO L87 Difference]: Start difference. First operand has 44 states, 29 states have (on average 1.6896551724137931) internal successors, (49), 39 states have internal predecessors, (49), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) Second operand has 4 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:28:08,406 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:28:08,407 INFO L93 Difference]: Finished difference Result 100 states and 151 transitions. [2022-11-26 00:28:08,409 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-26 00:28:08,411 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 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 6 [2022-11-26 00:28:08,411 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:28:08,421 INFO L225 Difference]: With dead ends: 100 [2022-11-26 00:28:08,422 INFO L226 Difference]: Without dead ends: 44 [2022-11-26 00:28:08,426 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 [2022-11-26 00:28:08,431 INFO L413 NwaCegarLoop]: 40 mSDtfsCounter, 19 mSDsluCounter, 76 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 116 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-26 00:28:08,433 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 116 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-26 00:28:08,457 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2022-11-26 00:28:08,484 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 44. [2022-11-26 00:28:08,486 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44 states, 36 states have (on average 1.4722222222222223) internal successors, (53), 40 states have internal predecessors, (53), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-26 00:28:08,488 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 59 transitions. [2022-11-26 00:28:08,491 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 59 transitions. Word has length 6 [2022-11-26 00:28:08,491 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:28:08,491 INFO L495 AbstractCegarLoop]: Abstraction has 44 states and 59 transitions. [2022-11-26 00:28:08,492 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:28:08,492 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 59 transitions. [2022-11-26 00:28:08,493 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-11-26 00:28:08,494 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:28:08,494 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:28:08,494 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-26 00:28:08,495 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-26 00:28:08,496 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:28:08,496 INFO L85 PathProgramCache]: Analyzing trace with hash -1231402566, now seen corresponding path program 1 times [2022-11-26 00:28:08,497 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:28:08,497 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [273003734] [2022-11-26 00:28:08,498 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:28:08,498 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:28:08,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:28:08,592 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-26 00:28:08,592 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:28:08,592 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [273003734] [2022-11-26 00:28:08,593 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [273003734] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:28:08,593 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:28:08,594 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-26 00:28:08,594 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1539159922] [2022-11-26 00:28:08,594 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:28:08,596 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-26 00:28:08,596 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:28:08,597 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-26 00:28:08,598 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-26 00:28:08,598 INFO L87 Difference]: Start difference. First operand 44 states and 59 transitions. Second operand has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:28:08,639 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:28:08,639 INFO L93 Difference]: Finished difference Result 44 states and 59 transitions. [2022-11-26 00:28:08,640 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-26 00:28:08,640 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 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 14 [2022-11-26 00:28:08,641 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:28:08,642 INFO L225 Difference]: With dead ends: 44 [2022-11-26 00:28:08,642 INFO L226 Difference]: Without dead ends: 43 [2022-11-26 00:28:08,643 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-26 00:28:08,645 INFO L413 NwaCegarLoop]: 32 mSDtfsCounter, 2 mSDsluCounter, 32 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 64 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-26 00:28:08,646 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 64 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-26 00:28:08,647 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2022-11-26 00:28:08,655 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 43. [2022-11-26 00:28:08,655 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43 states, 36 states have (on average 1.4444444444444444) internal successors, (52), 39 states have internal predecessors, (52), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-26 00:28:08,657 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 58 transitions. [2022-11-26 00:28:08,658 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 58 transitions. Word has length 14 [2022-11-26 00:28:08,658 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:28:08,658 INFO L495 AbstractCegarLoop]: Abstraction has 43 states and 58 transitions. [2022-11-26 00:28:08,659 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:28:08,659 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 58 transitions. [2022-11-26 00:28:08,660 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-11-26 00:28:08,660 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:28:08,661 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:28:08,661 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-26 00:28:08,662 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-26 00:28:08,662 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:28:08,663 INFO L85 PathProgramCache]: Analyzing trace with hash 481566571, now seen corresponding path program 1 times [2022-11-26 00:28:08,663 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:28:08,664 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1886631019] [2022-11-26 00:28:08,664 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:28:08,665 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:28:08,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:28:08,923 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:28:08,923 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:28:08,923 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1886631019] [2022-11-26 00:28:08,924 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1886631019] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-26 00:28:08,924 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1924972004] [2022-11-26 00:28:08,924 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:28:08,925 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-26 00:28:08,925 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99a4188d-af20-46e2-8273-beefe0d80159/bin/utaipan-ByfvJB40ur/z3 [2022-11-26 00:28:08,938 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99a4188d-af20-46e2-8273-beefe0d80159/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-26 00:28:08,953 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99a4188d-af20-46e2-8273-beefe0d80159/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-26 00:28:09,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:28:09,058 INFO L263 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-26 00:28:09,066 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 00:28:09,160 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:28:09,161 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-26 00:28:09,220 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:28:09,221 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1924972004] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-26 00:28:09,221 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [714509353] [2022-11-26 00:28:09,247 INFO L159 IcfgInterpreter]: Started Sifa with 13 locations of interest [2022-11-26 00:28:09,248 INFO L166 IcfgInterpreter]: Building call graph [2022-11-26 00:28:09,253 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-26 00:28:09,260 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-26 00:28:09,261 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-26 00:28:10,090 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-26 00:28:11,142 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [714509353] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:28:11,142 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-11-26 00:28:11,142 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [4, 4, 4] total 15 [2022-11-26 00:28:11,143 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [671635593] [2022-11-26 00:28:11,144 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:28:11,144 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-26 00:28:11,145 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:28:11,146 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-26 00:28:11,146 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=184, Unknown=0, NotChecked=0, Total=240 [2022-11-26 00:28:11,147 INFO L87 Difference]: Start difference. First operand 43 states and 58 transitions. Second operand has 11 states, 11 states have (on average 1.1818181818181819) internal successors, (13), 10 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:28:12,185 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:28:12,186 INFO L93 Difference]: Finished difference Result 118 states and 160 transitions. [2022-11-26 00:28:12,186 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-26 00:28:12,187 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 1.1818181818181819) internal successors, (13), 10 states have internal predecessors, (13), 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 15 [2022-11-26 00:28:12,187 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:28:12,188 INFO L225 Difference]: With dead ends: 118 [2022-11-26 00:28:12,189 INFO L226 Difference]: Without dead ends: 76 [2022-11-26 00:28:12,190 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 29 SyntacticMatches, 4 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 76 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=93, Invalid=327, Unknown=0, NotChecked=0, Total=420 [2022-11-26 00:28:12,191 INFO L413 NwaCegarLoop]: 25 mSDtfsCounter, 37 mSDsluCounter, 56 mSDsCounter, 0 mSdLazyCounter, 137 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 81 SdHoareTripleChecker+Invalid, 138 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 137 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-26 00:28:12,192 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [37 Valid, 81 Invalid, 138 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 137 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-26 00:28:12,194 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states. [2022-11-26 00:28:12,218 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 67. [2022-11-26 00:28:12,220 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 67 states, 60 states have (on average 1.4333333333333333) internal successors, (86), 63 states have internal predecessors, (86), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-26 00:28:12,226 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 92 transitions. [2022-11-26 00:28:12,228 INFO L78 Accepts]: Start accepts. Automaton has 67 states and 92 transitions. Word has length 15 [2022-11-26 00:28:12,228 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:28:12,229 INFO L495 AbstractCegarLoop]: Abstraction has 67 states and 92 transitions. [2022-11-26 00:28:12,229 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 1.1818181818181819) internal successors, (13), 10 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:28:12,230 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 92 transitions. [2022-11-26 00:28:12,231 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-11-26 00:28:12,231 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:28:12,232 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:28:12,245 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99a4188d-af20-46e2-8273-beefe0d80159/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-26 00:28:12,438 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99a4188d-af20-46e2-8273-beefe0d80159/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-26 00:28:12,439 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-26 00:28:12,440 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:28:12,440 INFO L85 PathProgramCache]: Analyzing trace with hash 481226207, now seen corresponding path program 1 times [2022-11-26 00:28:12,440 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:28:12,441 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [673632005] [2022-11-26 00:28:12,441 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:28:12,441 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:28:12,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:28:12,504 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-26 00:28:12,504 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:28:12,505 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [673632005] [2022-11-26 00:28:12,505 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [673632005] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:28:12,505 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:28:12,506 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-26 00:28:12,506 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [257621856] [2022-11-26 00:28:12,506 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:28:12,507 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-26 00:28:12,507 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:28:12,508 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-26 00:28:12,508 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-26 00:28:12,509 INFO L87 Difference]: Start difference. First operand 67 states and 92 transitions. Second operand has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:28:12,543 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:28:12,544 INFO L93 Difference]: Finished difference Result 67 states and 92 transitions. [2022-11-26 00:28:12,544 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-26 00:28:12,545 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 states have internal predecessors, (13), 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 15 [2022-11-26 00:28:12,545 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:28:12,546 INFO L225 Difference]: With dead ends: 67 [2022-11-26 00:28:12,546 INFO L226 Difference]: Without dead ends: 66 [2022-11-26 00:28:12,547 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-26 00:28:12,549 INFO L413 NwaCegarLoop]: 32 mSDtfsCounter, 0 mSDsluCounter, 32 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 64 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-26 00:28:12,550 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 64 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-26 00:28:12,551 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2022-11-26 00:28:12,566 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 66. [2022-11-26 00:28:12,566 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 66 states, 60 states have (on average 1.4166666666666667) internal successors, (85), 62 states have internal predecessors, (85), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-26 00:28:12,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 91 transitions. [2022-11-26 00:28:12,568 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 91 transitions. Word has length 15 [2022-11-26 00:28:12,568 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:28:12,568 INFO L495 AbstractCegarLoop]: Abstraction has 66 states and 91 transitions. [2022-11-26 00:28:12,569 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:28:12,569 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 91 transitions. [2022-11-26 00:28:12,570 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-11-26 00:28:12,570 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:28:12,571 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:28:12,571 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-26 00:28:12,571 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-26 00:28:12,572 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:28:12,572 INFO L85 PathProgramCache]: Analyzing trace with hash 1979494337, now seen corresponding path program 1 times [2022-11-26 00:28:12,573 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:28:12,573 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1730664666] [2022-11-26 00:28:12,573 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:28:12,574 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:28:12,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:28:12,637 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-11-26 00:28:12,638 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:28:12,638 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1730664666] [2022-11-26 00:28:12,639 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1730664666] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:28:12,639 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:28:12,639 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-26 00:28:12,640 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1364874369] [2022-11-26 00:28:12,640 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:28:12,640 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-26 00:28:12,641 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:28:12,641 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-26 00:28:12,642 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-26 00:28:12,642 INFO L87 Difference]: Start difference. First operand 66 states and 91 transitions. Second operand has 3 states, 2 states have (on average 8.5) internal successors, (17), 3 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:28:12,678 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:28:12,678 INFO L93 Difference]: Finished difference Result 66 states and 91 transitions. [2022-11-26 00:28:12,679 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-26 00:28:12,679 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 8.5) internal successors, (17), 3 states have internal predecessors, (17), 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 23 [2022-11-26 00:28:12,680 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:28:12,681 INFO L225 Difference]: With dead ends: 66 [2022-11-26 00:28:12,681 INFO L226 Difference]: Without dead ends: 65 [2022-11-26 00:28:12,682 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-26 00:28:12,683 INFO L413 NwaCegarLoop]: 30 mSDtfsCounter, 2 mSDsluCounter, 30 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 60 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-26 00:28:12,684 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 60 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-26 00:28:12,685 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states. [2022-11-26 00:28:12,699 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 65. [2022-11-26 00:28:12,699 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 65 states, 60 states have (on average 1.4) internal successors, (84), 61 states have internal predecessors, (84), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-26 00:28:12,700 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 90 transitions. [2022-11-26 00:28:12,701 INFO L78 Accepts]: Start accepts. Automaton has 65 states and 90 transitions. Word has length 23 [2022-11-26 00:28:12,701 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:28:12,701 INFO L495 AbstractCegarLoop]: Abstraction has 65 states and 90 transitions. [2022-11-26 00:28:12,702 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 8.5) internal successors, (17), 3 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:28:12,702 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 90 transitions. [2022-11-26 00:28:12,703 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-11-26 00:28:12,703 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:28:12,703 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:28:12,704 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-26 00:28:12,704 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-26 00:28:12,705 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:28:12,705 INFO L85 PathProgramCache]: Analyzing trace with hash 1234782409, now seen corresponding path program 1 times [2022-11-26 00:28:12,705 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:28:12,706 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1041003635] [2022-11-26 00:28:12,706 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:28:12,706 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:28:12,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:28:12,828 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-11-26 00:28:12,829 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:28:12,829 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1041003635] [2022-11-26 00:28:12,830 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1041003635] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:28:12,830 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:28:12,830 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-26 00:28:12,830 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1065968337] [2022-11-26 00:28:12,831 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:28:12,831 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-26 00:28:12,832 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:28:12,832 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-26 00:28:12,832 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-26 00:28:12,833 INFO L87 Difference]: Start difference. First operand 65 states and 90 transitions. Second operand has 3 states, 2 states have (on average 9.0) internal successors, (18), 3 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:28:12,865 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:28:12,865 INFO L93 Difference]: Finished difference Result 65 states and 90 transitions. [2022-11-26 00:28:12,866 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-26 00:28:12,866 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 9.0) internal successors, (18), 3 states have internal predecessors, (18), 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 24 [2022-11-26 00:28:12,867 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:28:12,867 INFO L225 Difference]: With dead ends: 65 [2022-11-26 00:28:12,867 INFO L226 Difference]: Without dead ends: 0 [2022-11-26 00:28:12,868 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-26 00:28:12,869 INFO L413 NwaCegarLoop]: 30 mSDtfsCounter, 0 mSDsluCounter, 30 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 60 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-26 00:28:12,870 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 60 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-26 00:28:12,871 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-26 00:28:12,871 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-26 00:28:12,871 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:28:12,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-26 00:28:12,872 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 24 [2022-11-26 00:28:12,872 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:28:12,872 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-26 00:28:12,873 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 9.0) internal successors, (18), 3 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:28:12,873 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-26 00:28:12,873 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-26 00:28:12,877 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 6 remaining) [2022-11-26 00:28:12,877 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 6 remaining) [2022-11-26 00:28:12,878 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 6 remaining) [2022-11-26 00:28:12,878 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 6 remaining) [2022-11-26 00:28:12,879 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 6 remaining) [2022-11-26 00:28:12,879 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 6 remaining) [2022-11-26 00:28:12,879 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-26 00:28:12,882 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-11-26 00:28:12,910 INFO L902 garLoopResultBuilder]: At program point mutex_lockENTRY(lines 16 20) the Hoare annotation is: true [2022-11-26 00:28:12,910 INFO L902 garLoopResultBuilder]: At program point L18-1(line 18) the Hoare annotation is: true [2022-11-26 00:28:12,911 INFO L899 garLoopResultBuilder]: For program point L18-2(line 18) no Hoare annotation was computed. [2022-11-26 00:28:12,911 INFO L899 garLoopResultBuilder]: For program point mutex_lockEXIT(lines 16 20) no Hoare annotation was computed. [2022-11-26 00:28:12,911 INFO L899 garLoopResultBuilder]: For program point __blast_assertEXIT(lines 5 7) no Hoare annotation was computed. [2022-11-26 00:28:12,911 INFO L902 garLoopResultBuilder]: At program point __blast_assertENTRY(lines 5 7) the Hoare annotation is: true [2022-11-26 00:28:12,912 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 93) no Hoare annotation was computed. [2022-11-26 00:28:12,912 INFO L899 garLoopResultBuilder]: For program point L93(line 93) no Hoare annotation was computed. [2022-11-26 00:28:12,912 INFO L899 garLoopResultBuilder]: For program point L93-1(line 93) no Hoare annotation was computed. [2022-11-26 00:28:12,912 INFO L899 garLoopResultBuilder]: For program point L85(line 85) no Hoare annotation was computed. [2022-11-26 00:28:12,913 INFO L899 garLoopResultBuilder]: For program point L85-1(line 85) no Hoare annotation was computed. [2022-11-26 00:28:12,913 INFO L902 garLoopResultBuilder]: At program point L44(lines 36 45) the Hoare annotation is: true [2022-11-26 00:28:12,913 INFO L899 garLoopResultBuilder]: For program point L36(lines 36 45) no Hoare annotation was computed. [2022-11-26 00:28:12,914 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 85) no Hoare annotation was computed. [2022-11-26 00:28:12,914 INFO L902 garLoopResultBuilder]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2022-11-26 00:28:12,914 INFO L899 garLoopResultBuilder]: For program point L78-1(lines 78 116) no Hoare annotation was computed. [2022-11-26 00:28:12,914 INFO L902 garLoopResultBuilder]: At program point L78-3(lines 78 116) the Hoare annotation is: true [2022-11-26 00:28:12,915 INFO L899 garLoopResultBuilder]: For program point L78-4(lines 78 116) no Hoare annotation was computed. [2022-11-26 00:28:12,915 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 85) no Hoare annotation was computed. [2022-11-26 00:28:12,915 INFO L902 garLoopResultBuilder]: At program point L38(line 38) the Hoare annotation is: true [2022-11-26 00:28:12,916 INFO L899 garLoopResultBuilder]: For program point L38-1(line 38) no Hoare annotation was computed. [2022-11-26 00:28:12,916 INFO L899 garLoopResultBuilder]: For program point L30(line 30) no Hoare annotation was computed. [2022-11-26 00:28:12,916 INFO L902 garLoopResultBuilder]: At program point L30-2(line 30) the Hoare annotation is: true [2022-11-26 00:28:12,916 INFO L902 garLoopResultBuilder]: At program point L30-3(lines 28 31) the Hoare annotation is: true [2022-11-26 00:28:12,917 INFO L902 garLoopResultBuilder]: At program point L80(lines 80 115) the Hoare annotation is: true [2022-11-26 00:28:12,917 INFO L899 garLoopResultBuilder]: For program point L106(line 106) no Hoare annotation was computed. [2022-11-26 00:28:12,917 INFO L899 garLoopResultBuilder]: For program point L98(line 98) no Hoare annotation was computed. [2022-11-26 00:28:12,917 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW(line 101) no Hoare annotation was computed. [2022-11-26 00:28:12,918 INFO L899 garLoopResultBuilder]: For program point L90(line 90) no Hoare annotation was computed. [2022-11-26 00:28:12,918 INFO L899 garLoopResultBuilder]: For program point L24(line 24) no Hoare annotation was computed. [2022-11-26 00:28:12,918 INFO L902 garLoopResultBuilder]: At program point L24-2(line 24) the Hoare annotation is: true [2022-11-26 00:28:12,918 INFO L899 garLoopResultBuilder]: For program point L24-3(line 24) no Hoare annotation was computed. [2022-11-26 00:28:12,919 INFO L899 garLoopResultBuilder]: For program point L82(line 82) no Hoare annotation was computed. [2022-11-26 00:28:12,919 INFO L899 garLoopResultBuilder]: For program point L107(lines 107 110) no Hoare annotation was computed. [2022-11-26 00:28:12,919 INFO L902 garLoopResultBuilder]: At program point L99(lines 99 102) the Hoare annotation is: true [2022-11-26 00:28:12,919 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-11-26 00:28:12,920 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW(line 101) no Hoare annotation was computed. [2022-11-26 00:28:12,920 INFO L902 garLoopResultBuilder]: At program point L91(lines 91 94) the Hoare annotation is: true [2022-11-26 00:28:12,920 INFO L902 garLoopResultBuilder]: At program point L83(lines 83 86) the Hoare annotation is: true [2022-11-26 00:28:12,921 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 93) no Hoare annotation was computed. [2022-11-26 00:28:12,921 INFO L902 garLoopResultBuilder]: At program point L43(line 43) the Hoare annotation is: true [2022-11-26 00:28:12,921 INFO L902 garLoopResultBuilder]: At program point L43-1(line 43) the Hoare annotation is: true [2022-11-26 00:28:12,922 INFO L899 garLoopResultBuilder]: For program point L101(line 101) no Hoare annotation was computed. [2022-11-26 00:28:12,922 INFO L899 garLoopResultBuilder]: For program point L101-1(line 101) no Hoare annotation was computed. [2022-11-26 00:28:12,928 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2022-11-26 00:28:12,931 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-26 00:28:12,942 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.11 12:28:12 BoogieIcfgContainer [2022-11-26 00:28:12,942 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-26 00:28:12,943 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-26 00:28:12,943 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-26 00:28:12,944 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-26 00:28:12,944 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:28:07" (3/4) ... [2022-11-26 00:28:12,951 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-26 00:28:12,959 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure mutex_lock [2022-11-26 00:28:12,960 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure __blast_assert [2022-11-26 00:28:12,970 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 20 nodes and edges [2022-11-26 00:28:12,972 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2022-11-26 00:28:12,973 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2022-11-26 00:28:12,973 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-26 00:28:13,056 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99a4188d-af20-46e2-8273-beefe0d80159/bin/utaipan-ByfvJB40ur/witness.graphml [2022-11-26 00:28:13,056 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-26 00:28:13,057 INFO L158 Benchmark]: Toolchain (without parser) took 6674.94ms. Allocated memory was 151.0MB in the beginning and 182.5MB in the end (delta: 31.5MB). Free memory was 121.4MB in the beginning and 60.4MB in the end (delta: 60.9MB). Peak memory consumption was 95.0MB. Max. memory is 16.1GB. [2022-11-26 00:28:13,058 INFO L158 Benchmark]: CDTParser took 0.35ms. Allocated memory is still 115.3MB. Free memory was 72.5MB in the beginning and 72.4MB in the end (delta: 74.0kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-26 00:28:13,059 INFO L158 Benchmark]: CACSL2BoogieTranslator took 314.37ms. Allocated memory is still 151.0MB. Free memory was 121.4MB in the beginning and 110.8MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-26 00:28:13,059 INFO L158 Benchmark]: Boogie Procedure Inliner took 61.26ms. Allocated memory is still 151.0MB. Free memory was 110.8MB in the beginning and 109.2MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-26 00:28:13,061 INFO L158 Benchmark]: Boogie Preprocessor took 30.91ms. Allocated memory is still 151.0MB. Free memory was 109.2MB in the beginning and 107.9MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-26 00:28:13,061 INFO L158 Benchmark]: RCFGBuilder took 764.55ms. Allocated memory is still 151.0MB. Free memory was 107.9MB in the beginning and 91.7MB in the end (delta: 16.2MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-11-26 00:28:13,062 INFO L158 Benchmark]: TraceAbstraction took 5381.73ms. Allocated memory was 151.0MB in the beginning and 182.5MB in the end (delta: 31.5MB). Free memory was 91.1MB in the beginning and 63.6MB in the end (delta: 27.5MB). Peak memory consumption was 59.4MB. Max. memory is 16.1GB. [2022-11-26 00:28:13,062 INFO L158 Benchmark]: Witness Printer took 113.44ms. Allocated memory is still 182.5MB. Free memory was 63.6MB in the beginning and 60.4MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-26 00:28:13,065 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.35ms. Allocated memory is still 115.3MB. Free memory was 72.5MB in the beginning and 72.4MB in the end (delta: 74.0kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 314.37ms. Allocated memory is still 151.0MB. Free memory was 121.4MB in the beginning and 110.8MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 61.26ms. Allocated memory is still 151.0MB. Free memory was 110.8MB in the beginning and 109.2MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 30.91ms. Allocated memory is still 151.0MB. Free memory was 109.2MB in the beginning and 107.9MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 764.55ms. Allocated memory is still 151.0MB. Free memory was 107.9MB in the beginning and 91.7MB in the end (delta: 16.2MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 5381.73ms. Allocated memory was 151.0MB in the beginning and 182.5MB in the end (delta: 31.5MB). Free memory was 91.1MB in the beginning and 63.6MB in the end (delta: 27.5MB). Peak memory consumption was 59.4MB. Max. memory is 16.1GB. * Witness Printer took 113.44ms. Allocated memory is still 182.5MB. Free memory was 63.6MB in the beginning and 60.4MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 85]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 85]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 93]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 93]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 101]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 101]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 44 locations, 6 error locations. Started 1 CEGAR loops. OverallTime: 5.3s, OverallIterations: 6, TraceHistogramMax: 3, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 60 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 60 mSDsluCounter, 445 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 256 mSDsCounter, 9 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 251 IncrementalHoareTripleChecker+Invalid, 260 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 9 mSolverCounterUnsat, 189 mSDtfsCounter, 251 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 63 GetRequests, 33 SyntacticMatches, 4 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 76 ImplicationChecksByTransitivity, 1.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=67occurred in iteration=3, InterpolantAutomatonStates: 27, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 6 MinimizatonAttempts, 9 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 16 LocationsWithAnnotation, 38 PreInvPairs, 67 NumberOfFragments, 16 HoareAnnotationTreeSize, 38 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 16 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 112 NumberOfCodeBlocks, 112 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 119 ConstructedInterpolants, 0 QuantifiedInterpolants, 219 SizeOfPredicates, 1 NumberOfNonLiveVariables, 76 ConjunctsInSsa, 4 ConjunctsInUnsatCore, 8 InterpolantComputations, 5 PerfectInterpolantSequences, 28/37 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: OVERALL_TIME: 0.8s, ICFG_INTERPRETER_ENTERED_PROCEDURES: 1, DAG_INTERPRETER_EARLY_EXIT_QUERIES_NONTRIVIAL: 15, DAG_INTERPRETER_EARLY_EXITS: 1, TOOLS_POST_APPLICATIONS: 24, TOOLS_POST_TIME: 0.5s, TOOLS_POST_CALL_APPLICATIONS: 0, TOOLS_POST_CALL_TIME: 0.0s, TOOLS_POST_RETURN_APPLICATIONS: 0, TOOLS_POST_RETURN_TIME: 0.0s, TOOLS_QUANTIFIERELIM_APPLICATIONS: 22, TOOLS_QUANTIFIERELIM_TIME: 0.5s, TOOLS_QUANTIFIERELIM_MAX_TIME: 0.1s, FLUID_QUERY_TIME: 0.0s, FLUID_QUERIES: 39, FLUID_YES_ANSWERS: 0, DOMAIN_JOIN_APPLICATIONS: 6, DOMAIN_JOIN_TIME: 0.2s, DOMAIN_ALPHA_APPLICATIONS: 0, DOMAIN_ALPHA_TIME: 0.0s, DOMAIN_WIDEN_APPLICATIONS: 0, DOMAIN_WIDEN_TIME: 0.0s, DOMAIN_ISSUBSETEQ_APPLICATIONS: 1, DOMAIN_ISSUBSETEQ_TIME: 0.0s, DOMAIN_ISBOTTOM_APPLICATIONS: 15, DOMAIN_ISBOTTOM_TIME: 0.0s, LOOP_SUMMARIZER_APPLICATIONS: 1, LOOP_SUMMARIZER_CACHE_MISSES: 1, LOOP_SUMMARIZER_OVERALL_TIME: 0.1s, LOOP_SUMMARIZER_NEW_COMPUTATION_TIME: 0.1s, LOOP_SUMMARIZER_FIXPOINT_ITERATIONS: 1, CALL_SUMMARIZER_APPLICATIONS: 0, CALL_SUMMARIZER_CACHE_MISSES: 0, CALL_SUMMARIZER_OVERALL_TIME: 0.0s, CALL_SUMMARIZER_NEW_COMPUTATION_TIME: 0.0s, PROCEDURE_GRAPH_BUILDER_TIME: 0.0s, PATH_EXPR_TIME: 0.0s, REGEX_TO_DAG_TIME: 0.0s, DAG_COMPRESSION_TIME: 0.0s, DAG_COMPRESSION_PROCESSED_NODES: 229, DAG_COMPRESSION_RETAINED_NODES: 44, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 6 specifications checked. All of them hold - InvariantResult [Line: -1]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 36]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 78]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 83]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 91]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 99]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 28]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 80]: Loop Invariant Derived loop invariant: 1 RESULT: Ultimate proved your program to be correct! [2022-11-26 00:28:13,114 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99a4188d-af20-46e2-8273-beefe0d80159/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE