./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/pthread-lit/fk2012.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 5e519f3a 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_035c8c33-e29f-4ff8-9d99-781d0388c441/bin/uautomizer-Dbtcem3rbc/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_035c8c33-e29f-4ff8-9d99-781d0388c441/bin/uautomizer-Dbtcem3rbc/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_035c8c33-e29f-4ff8-9d99-781d0388c441/bin/uautomizer-Dbtcem3rbc/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_035c8c33-e29f-4ff8-9d99-781d0388c441/bin/uautomizer-Dbtcem3rbc/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-lit/fk2012.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_035c8c33-e29f-4ff8-9d99-781d0388c441/bin/uautomizer-Dbtcem3rbc/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_035c8c33-e29f-4ff8-9d99-781d0388c441/bin/uautomizer-Dbtcem3rbc --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 Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 25a65bfeb78eff83ae0d8a23f733f9dc95190d8c8aa20c7c495d09a2bd7eb6f0 --- 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-5e519f3 [2022-11-02 19:49:30,373 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-02 19:49:30,379 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-02 19:49:30,429 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-02 19:49:30,429 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-02 19:49:30,433 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-02 19:49:30,437 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-02 19:49:30,441 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-02 19:49:30,443 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-02 19:49:30,449 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-02 19:49:30,450 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-02 19:49:30,452 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-02 19:49:30,453 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-02 19:49:30,455 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-02 19:49:30,458 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-02 19:49:30,459 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-02 19:49:30,461 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-02 19:49:30,462 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-02 19:49:30,463 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-02 19:49:30,474 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-02 19:49:30,475 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-02 19:49:30,477 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-02 19:49:30,480 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-02 19:49:30,481 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-02 19:49:30,488 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-02 19:49:30,488 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-02 19:49:30,489 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-02 19:49:30,491 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-02 19:49:30,492 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-02 19:49:30,493 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-02 19:49:30,494 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-02 19:49:30,496 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-02 19:49:30,498 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-02 19:49:30,499 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-02 19:49:30,500 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-02 19:49:30,501 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-02 19:49:30,501 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-02 19:49:30,502 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-02 19:49:30,502 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-02 19:49:30,503 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-02 19:49:30,504 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-02 19:49:30,504 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_035c8c33-e29f-4ff8-9d99-781d0388c441/bin/uautomizer-Dbtcem3rbc/config/svcomp-Overflow-32bit-Automizer_Default.epf [2022-11-02 19:49:30,549 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-02 19:49:30,550 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-02 19:49:30,550 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-02 19:49:30,551 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-02 19:49:30,552 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-02 19:49:30,552 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-02 19:49:30,553 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-02 19:49:30,553 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-02 19:49:30,553 INFO L138 SettingsManager]: * Use SBE=true [2022-11-02 19:49:30,553 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-02 19:49:30,554 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-02 19:49:30,555 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-02 19:49:30,555 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-02 19:49:30,555 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-02 19:49:30,555 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-02 19:49:30,555 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-02 19:49:30,555 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-02 19:49:30,556 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-02 19:49:30,556 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-02 19:49:30,556 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-02 19:49:30,556 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-02 19:49:30,556 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-02 19:49:30,557 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-02 19:49:30,557 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-02 19:49:30,557 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-02 19:49:30,557 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-02 19:49:30,559 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-02 19:49:30,559 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-02 19:49:30,559 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-02 19:49:30,560 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-02 19:49:30,560 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-02 19:49:30,560 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-02 19:49:30,560 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-02 19:49:30,561 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_035c8c33-e29f-4ff8-9d99-781d0388c441/bin/uautomizer-Dbtcem3rbc/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_035c8c33-e29f-4ff8-9d99-781d0388c441/bin/uautomizer-Dbtcem3rbc Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 25a65bfeb78eff83ae0d8a23f733f9dc95190d8c8aa20c7c495d09a2bd7eb6f0 [2022-11-02 19:49:30,889 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-02 19:49:30,912 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-02 19:49:30,915 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-02 19:49:30,916 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-02 19:49:30,917 INFO L275 PluginConnector]: CDTParser initialized [2022-11-02 19:49:30,919 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_035c8c33-e29f-4ff8-9d99-781d0388c441/bin/uautomizer-Dbtcem3rbc/../../sv-benchmarks/c/pthread-lit/fk2012.i [2022-11-02 19:49:30,992 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_035c8c33-e29f-4ff8-9d99-781d0388c441/bin/uautomizer-Dbtcem3rbc/data/f59f74875/9a7aba9f27a24c89a182943a66d4889d/FLAG182c2c6ba [2022-11-02 19:49:31,686 INFO L306 CDTParser]: Found 1 translation units. [2022-11-02 19:49:31,687 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_035c8c33-e29f-4ff8-9d99-781d0388c441/sv-benchmarks/c/pthread-lit/fk2012.i [2022-11-02 19:49:31,715 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_035c8c33-e29f-4ff8-9d99-781d0388c441/bin/uautomizer-Dbtcem3rbc/data/f59f74875/9a7aba9f27a24c89a182943a66d4889d/FLAG182c2c6ba [2022-11-02 19:49:31,897 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_035c8c33-e29f-4ff8-9d99-781d0388c441/bin/uautomizer-Dbtcem3rbc/data/f59f74875/9a7aba9f27a24c89a182943a66d4889d [2022-11-02 19:49:31,902 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-02 19:49:31,904 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-02 19:49:31,908 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-02 19:49:31,909 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-02 19:49:31,913 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-02 19:49:31,913 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 07:49:31" (1/1) ... [2022-11-02 19:49:31,916 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@f463a0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 07:49:31, skipping insertion in model container [2022-11-02 19:49:31,916 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 07:49:31" (1/1) ... [2022-11-02 19:49:31,924 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-02 19:49:31,999 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-02 19:49:32,246 WARN L230 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_035c8c33-e29f-4ff8-9d99-781d0388c441/sv-benchmarks/c/pthread-lit/fk2012.i[800,813] [2022-11-02 19:49:32,602 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-02 19:49:32,612 INFO L203 MainTranslator]: Completed pre-run [2022-11-02 19:49:32,630 WARN L230 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_035c8c33-e29f-4ff8-9d99-781d0388c441/sv-benchmarks/c/pthread-lit/fk2012.i[800,813] [2022-11-02 19:49:32,684 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-02 19:49:32,735 INFO L208 MainTranslator]: Completed translation [2022-11-02 19:49:32,736 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 07:49:32 WrapperNode [2022-11-02 19:49:32,736 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-02 19:49:32,737 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-02 19:49:32,737 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-02 19:49:32,737 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-02 19:49:32,749 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 07:49:32" (1/1) ... [2022-11-02 19:49:32,785 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 07:49:32" (1/1) ... [2022-11-02 19:49:32,814 INFO L138 Inliner]: procedures = 277, calls = 35, calls flagged for inlining = 16, calls inlined = 21, statements flattened = 166 [2022-11-02 19:49:32,814 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-02 19:49:32,815 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-02 19:49:32,815 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-02 19:49:32,815 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-02 19:49:32,825 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 07:49:32" (1/1) ... [2022-11-02 19:49:32,825 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 07:49:32" (1/1) ... [2022-11-02 19:49:32,829 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 07:49:32" (1/1) ... [2022-11-02 19:49:32,829 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 07:49:32" (1/1) ... [2022-11-02 19:49:32,837 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 07:49:32" (1/1) ... [2022-11-02 19:49:32,842 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 07:49:32" (1/1) ... [2022-11-02 19:49:32,844 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 07:49:32" (1/1) ... [2022-11-02 19:49:32,846 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 07:49:32" (1/1) ... [2022-11-02 19:49:32,849 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-02 19:49:32,850 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-02 19:49:32,850 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-02 19:49:32,850 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-02 19:49:32,851 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 07:49:32" (1/1) ... [2022-11-02 19:49:32,858 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-02 19:49:32,871 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_035c8c33-e29f-4ff8-9d99-781d0388c441/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 19:49:32,899 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_035c8c33-e29f-4ff8-9d99-781d0388c441/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-02 19:49:32,930 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_035c8c33-e29f-4ff8-9d99-781d0388c441/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-02 19:49:32,952 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-11-02 19:49:32,953 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-02 19:49:32,953 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-02 19:49:32,954 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-11-02 19:49:32,954 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-02 19:49:32,954 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-02 19:49:32,955 INFO L130 BoogieDeclarations]: Found specification of procedure producer [2022-11-02 19:49:32,960 INFO L138 BoogieDeclarations]: Found implementation of procedure producer [2022-11-02 19:49:32,961 INFO L130 BoogieDeclarations]: Found specification of procedure consumer [2022-11-02 19:49:32,961 INFO L138 BoogieDeclarations]: Found implementation of procedure consumer [2022-11-02 19:49:32,963 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-02 19:49:32,963 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-02 19:49:32,964 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-02 19:49:32,965 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-02 19:49:33,116 INFO L235 CfgBuilder]: Building ICFG [2022-11-02 19:49:33,119 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-02 19:49:33,437 INFO L276 CfgBuilder]: Performing block encoding [2022-11-02 19:49:33,631 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-02 19:49:33,632 INFO L300 CfgBuilder]: Removed 3 assume(true) statements. [2022-11-02 19:49:33,634 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 07:49:33 BoogieIcfgContainer [2022-11-02 19:49:33,634 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-02 19:49:33,637 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-02 19:49:33,637 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-02 19:49:33,651 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-02 19:49:33,652 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.11 07:49:31" (1/3) ... [2022-11-02 19:49:33,652 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1fc2d1e0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 07:49:33, skipping insertion in model container [2022-11-02 19:49:33,653 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 07:49:32" (2/3) ... [2022-11-02 19:49:33,653 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1fc2d1e0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 07:49:33, skipping insertion in model container [2022-11-02 19:49:33,653 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 07:49:33" (3/3) ... [2022-11-02 19:49:33,654 INFO L112 eAbstractionObserver]: Analyzing ICFG fk2012.i [2022-11-02 19:49:33,664 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-02 19:49:33,677 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-02 19:49:33,677 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2022-11-02 19:49:33,678 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-02 19:49:33,840 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-11-02 19:49:33,879 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-02 19:49:33,895 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 131 places, 134 transitions, 278 flow [2022-11-02 19:49:33,910 INFO L112 LiptonReduction]: Starting Lipton reduction on Petri net that has 131 places, 134 transitions, 278 flow [2022-11-02 19:49:33,912 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 131 places, 134 transitions, 278 flow [2022-11-02 19:49:34,029 INFO L130 PetriNetUnfolder]: 19/288 cut-off events. [2022-11-02 19:49:34,029 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-02 19:49:34,039 INFO L83 FinitePrefix]: Finished finitePrefix Result has 303 conditions, 288 events. 19/288 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 1134 event pairs, 1 based on Foata normal form. 0/246 useless extension candidates. Maximal degree in co-relation 135. Up to 8 conditions per place. [2022-11-02 19:49:34,049 INFO L118 LiptonReduction]: Number of co-enabled transitions 8142 [2022-11-02 19:49:37,838 INFO L133 LiptonReduction]: Checked pairs total: 11037 [2022-11-02 19:49:37,839 INFO L135 LiptonReduction]: Total number of compositions: 121 [2022-11-02 19:49:37,847 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 40 places, 39 transitions, 88 flow [2022-11-02 19:49:37,952 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 1559 states, 1479 states have (on average 3.0845165652467883) internal successors, (4562), 1558 states have internal predecessors, (4562), 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) [2022-11-02 19:49:37,973 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-02 19:49:37,981 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;@7cb1ac49, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-02 19:49:37,981 INFO L358 AbstractCegarLoop]: Starting to check reachability of 18 error locations. [2022-11-02 19:49:37,989 INFO L276 IsEmpty]: Start isEmpty. Operand has 1559 states, 1479 states have (on average 3.0845165652467883) internal successors, (4562), 1558 states have internal predecessors, (4562), 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) [2022-11-02 19:49:37,995 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-11-02 19:49:37,996 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 19:49:37,996 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-11-02 19:49:37,997 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting producerErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [producerErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, producerErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, producerErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2022-11-02 19:49:38,006 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 19:49:38,007 INFO L85 PathProgramCache]: Analyzing trace with hash 22621531, now seen corresponding path program 1 times [2022-11-02 19:49:38,019 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 19:49:38,020 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1291347166] [2022-11-02 19:49:38,021 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 19:49:38,021 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 19:49:38,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 19:49:38,296 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 19:49:38,297 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 19:49:38,297 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1291347166] [2022-11-02 19:49:38,298 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1291347166] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 19:49:38,298 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 19:49:38,299 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-02 19:49:38,302 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1761609323] [2022-11-02 19:49:38,303 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 19:49:38,308 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-02 19:49:38,311 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 19:49:38,343 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-02 19:49:38,344 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-02 19:49:38,351 INFO L87 Difference]: Start difference. First operand has 1559 states, 1479 states have (on average 3.0845165652467883) internal successors, (4562), 1558 states have internal predecessors, (4562), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 1 states have (on average 4.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 19:49:38,477 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 19:49:38,477 INFO L93 Difference]: Finished difference Result 1289 states and 3647 transitions. [2022-11-02 19:49:38,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-02 19:49:38,481 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 1 states have (on average 4.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4 [2022-11-02 19:49:38,481 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 19:49:38,515 INFO L225 Difference]: With dead ends: 1289 [2022-11-02 19:49:38,516 INFO L226 Difference]: Without dead ends: 1289 [2022-11-02 19:49:38,517 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-02 19:49:38,521 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 6 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-02 19:49:38,524 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 6 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-02 19:49:38,551 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1289 states. [2022-11-02 19:49:38,652 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1289 to 1289. [2022-11-02 19:49:38,659 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1289 states, 1244 states have (on average 2.9316720257234725) internal successors, (3647), 1288 states have internal predecessors, (3647), 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) [2022-11-02 19:49:38,665 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1289 states to 1289 states and 3647 transitions. [2022-11-02 19:49:38,666 INFO L78 Accepts]: Start accepts. Automaton has 1289 states and 3647 transitions. Word has length 4 [2022-11-02 19:49:38,667 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 19:49:38,667 INFO L495 AbstractCegarLoop]: Abstraction has 1289 states and 3647 transitions. [2022-11-02 19:49:38,667 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 1 states have (on average 4.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 19:49:38,667 INFO L276 IsEmpty]: Start isEmpty. Operand 1289 states and 3647 transitions. [2022-11-02 19:49:38,668 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-11-02 19:49:38,668 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 19:49:38,669 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-11-02 19:49:38,670 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-02 19:49:38,670 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting producerErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [producerErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, producerErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, producerErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2022-11-02 19:49:38,671 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 19:49:38,671 INFO L85 PathProgramCache]: Analyzing trace with hash 264473337, now seen corresponding path program 1 times [2022-11-02 19:49:38,671 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 19:49:38,676 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1124164562] [2022-11-02 19:49:38,676 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 19:49:38,676 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 19:49:38,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 19:49:38,837 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 19:49:38,837 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 19:49:38,837 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1124164562] [2022-11-02 19:49:38,838 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1124164562] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 19:49:38,838 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 19:49:38,838 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 19:49:38,838 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1651415793] [2022-11-02 19:49:38,839 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 19:49:38,844 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 19:49:38,845 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 19:49:38,845 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 19:49:38,846 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 19:49:38,846 INFO L87 Difference]: Start difference. First operand 1289 states and 3647 transitions. Second operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 2 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) [2022-11-02 19:49:38,926 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 19:49:38,926 INFO L93 Difference]: Finished difference Result 829 states and 2351 transitions. [2022-11-02 19:49:38,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 19:49:38,927 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.0) internal successors, (6), 2 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 [2022-11-02 19:49:38,927 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 19:49:38,932 INFO L225 Difference]: With dead ends: 829 [2022-11-02 19:49:38,932 INFO L226 Difference]: Without dead ends: 829 [2022-11-02 19:49:38,933 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 [2022-11-02 19:49:38,934 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 14 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 10 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-02 19:49:38,935 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 10 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-02 19:49:38,938 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 829 states. [2022-11-02 19:49:38,956 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 829 to 825. [2022-11-02 19:49:38,959 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 825 states, 790 states have (on average 2.9658227848101264) internal successors, (2343), 824 states have internal predecessors, (2343), 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) [2022-11-02 19:49:38,963 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 825 states to 825 states and 2343 transitions. [2022-11-02 19:49:38,964 INFO L78 Accepts]: Start accepts. Automaton has 825 states and 2343 transitions. Word has length 6 [2022-11-02 19:49:38,964 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 19:49:38,964 INFO L495 AbstractCegarLoop]: Abstraction has 825 states and 2343 transitions. [2022-11-02 19:49:38,964 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.0) internal successors, (6), 2 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) [2022-11-02 19:49:38,964 INFO L276 IsEmpty]: Start isEmpty. Operand 825 states and 2343 transitions. [2022-11-02 19:49:38,965 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-11-02 19:49:38,965 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 19:49:38,965 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1] [2022-11-02 19:49:38,966 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-02 19:49:38,966 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [producerErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, producerErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, producerErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2022-11-02 19:49:38,966 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 19:49:38,967 INFO L85 PathProgramCache]: Analyzing trace with hash 264417636, now seen corresponding path program 1 times [2022-11-02 19:49:38,967 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 19:49:38,970 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [934449542] [2022-11-02 19:49:38,971 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 19:49:38,971 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 19:49:38,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 19:49:38,992 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-02 19:49:39,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 19:49:39,018 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-02 19:49:39,019 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-02 19:49:39,020 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (17 of 18 remaining) [2022-11-02 19:49:39,022 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location producerErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 18 remaining) [2022-11-02 19:49:39,022 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location producerErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 18 remaining) [2022-11-02 19:49:39,023 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location producerErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 18 remaining) [2022-11-02 19:49:39,023 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location producerErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 18 remaining) [2022-11-02 19:49:39,023 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location producerErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 18 remaining) [2022-11-02 19:49:39,024 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location producerErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 18 remaining) [2022-11-02 19:49:39,024 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (10 of 18 remaining) [2022-11-02 19:49:39,024 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location consumerErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 18 remaining) [2022-11-02 19:49:39,024 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location consumerErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 18 remaining) [2022-11-02 19:49:39,025 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location producerErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 18 remaining) [2022-11-02 19:49:39,025 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location producerErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 18 remaining) [2022-11-02 19:49:39,025 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location producerErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 18 remaining) [2022-11-02 19:49:39,025 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location producerErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 18 remaining) [2022-11-02 19:49:39,026 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location producerErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 18 remaining) [2022-11-02 19:49:39,026 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location producerErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 18 remaining) [2022-11-02 19:49:39,026 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location consumerErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 18 remaining) [2022-11-02 19:49:39,026 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location consumerErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 18 remaining) [2022-11-02 19:49:39,027 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-02 19:49:39,029 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2022-11-02 19:49:39,031 WARN L233 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2022-11-02 19:49:39,032 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2022-11-02 19:49:39,090 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-11-02 19:49:39,094 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-02 19:49:39,094 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 216 places, 222 transitions, 468 flow [2022-11-02 19:49:39,095 INFO L112 LiptonReduction]: Starting Lipton reduction on Petri net that has 216 places, 222 transitions, 468 flow [2022-11-02 19:49:39,095 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 216 places, 222 transitions, 468 flow [2022-11-02 19:49:39,338 INFO L130 PetriNetUnfolder]: 55/758 cut-off events. [2022-11-02 19:49:39,338 INFO L131 PetriNetUnfolder]: For 12/12 co-relation queries the response was YES. [2022-11-02 19:49:39,357 INFO L83 FinitePrefix]: Finished finitePrefix Result has 805 conditions, 758 events. 55/758 cut-off events. For 12/12 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 4538 event pairs, 4 based on Foata normal form. 0/641 useless extension candidates. Maximal degree in co-relation 494. Up to 18 conditions per place. [2022-11-02 19:49:39,398 INFO L118 LiptonReduction]: Number of co-enabled transitions 31592 [2022-11-02 19:49:44,356 INFO L133 LiptonReduction]: Checked pairs total: 55881 [2022-11-02 19:49:44,356 INFO L135 LiptonReduction]: Total number of compositions: 193 [2022-11-02 19:49:44,358 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 79 places, 79 transitions, 182 flow [2022-11-02 19:50:06,171 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 498198 states, 496307 states have (on average 5.158242781181809) internal successors, (2560072), 498197 states have internal predecessors, (2560072), 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) [2022-11-02 19:50:06,175 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-02 19:50:06,203 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;@7cb1ac49, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-02 19:50:06,205 INFO L358 AbstractCegarLoop]: Starting to check reachability of 26 error locations. [2022-11-02 19:50:07,240 INFO L276 IsEmpty]: Start isEmpty. Operand has 498198 states, 496307 states have (on average 5.158242781181809) internal successors, (2560072), 498197 states have internal predecessors, (2560072), 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) [2022-11-02 19:50:07,240 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-11-02 19:50:07,240 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 19:50:07,240 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-11-02 19:50:07,241 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting producerErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [producerErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, producerErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, producerErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2022-11-02 19:50:07,242 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 19:50:07,242 INFO L85 PathProgramCache]: Analyzing trace with hash 38123768, now seen corresponding path program 1 times [2022-11-02 19:50:07,242 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 19:50:07,242 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1611874464] [2022-11-02 19:50:07,243 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 19:50:07,243 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 19:50:07,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 19:50:07,285 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 19:50:07,291 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 19:50:07,292 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1611874464] [2022-11-02 19:50:07,292 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1611874464] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 19:50:07,292 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 19:50:07,293 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-02 19:50:07,293 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1568517781] [2022-11-02 19:50:07,293 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 19:50:07,293 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-02 19:50:07,294 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 19:50:07,294 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-02 19:50:07,294 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-02 19:50:08,193 INFO L87 Difference]: Start difference. First operand has 498198 states, 496307 states have (on average 5.158242781181809) internal successors, (2560072), 498197 states have internal predecessors, (2560072), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 1 states have (on average 4.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 19:50:18,693 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 19:50:18,693 INFO L93 Difference]: Finished difference Result 402977 states and 1965048 transitions. [2022-11-02 19:50:18,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-02 19:50:18,694 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 1 states have (on average 4.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4 [2022-11-02 19:50:18,694 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 19:50:24,262 INFO L225 Difference]: With dead ends: 402977 [2022-11-02 19:50:24,262 INFO L226 Difference]: Without dead ends: 402977 [2022-11-02 19:50:24,263 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-02 19:50:24,264 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 57 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 16 SdHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 57 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-02 19:50:24,264 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 16 Invalid, 59 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 57 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-02 19:50:26,575 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 402977 states.