./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/weaver/popl20-min-max-inc-dec.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 38b53e6a Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6273b414-8063-4fc9-820c-e7244df3ff32/bin/uautomizer-ZsLfNo2U6R/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6273b414-8063-4fc9-820c-e7244df3ff32/bin/uautomizer-ZsLfNo2U6R/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6273b414-8063-4fc9-820c-e7244df3ff32/bin/uautomizer-ZsLfNo2U6R/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6273b414-8063-4fc9-820c-e7244df3ff32/bin/uautomizer-ZsLfNo2U6R/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/popl20-min-max-inc-dec.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6273b414-8063-4fc9-820c-e7244df3ff32/bin/uautomizer-ZsLfNo2U6R/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6273b414-8063-4fc9-820c-e7244df3ff32/bin/uautomizer-ZsLfNo2U6R --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 a1648913be4b4e88120f8ece4966a58804b334c451c87254dfc42f8e396f396f --- 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 [2022-11-25 18:07:52,505 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-25 18:07:52,507 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-25 18:07:52,546 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-25 18:07:52,547 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-25 18:07:52,551 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-25 18:07:52,553 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-25 18:07:52,556 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-25 18:07:52,558 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-25 18:07:52,564 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-25 18:07:52,565 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-25 18:07:52,567 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-25 18:07:52,568 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-25 18:07:52,570 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-25 18:07:52,572 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-25 18:07:52,575 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-25 18:07:52,577 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-25 18:07:52,578 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-25 18:07:52,579 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-25 18:07:52,586 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-25 18:07:52,587 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-25 18:07:52,590 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-25 18:07:52,591 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-25 18:07:52,592 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-25 18:07:52,603 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-25 18:07:52,603 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-25 18:07:52,604 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-25 18:07:52,606 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-25 18:07:52,606 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-25 18:07:52,608 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-25 18:07:52,609 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-25 18:07:52,610 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-25 18:07:52,612 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-25 18:07:52,613 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-25 18:07:52,614 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-25 18:07:52,615 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-25 18:07:52,615 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-25 18:07:52,616 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-25 18:07:52,616 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-25 18:07:52,617 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-25 18:07:52,618 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-25 18:07:52,618 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6273b414-8063-4fc9-820c-e7244df3ff32/bin/uautomizer-ZsLfNo2U6R/config/svcomp-Overflow-32bit-Automizer_Default.epf [2022-11-25 18:07:52,659 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-25 18:07:52,659 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-25 18:07:52,660 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-25 18:07:52,660 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-25 18:07:52,661 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-25 18:07:52,661 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-25 18:07:52,661 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-25 18:07:52,662 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-25 18:07:52,662 INFO L138 SettingsManager]: * Use SBE=true [2022-11-25 18:07:52,662 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-25 18:07:52,662 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-25 18:07:52,663 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-25 18:07:52,663 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-25 18:07:52,663 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-25 18:07:52,663 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-25 18:07:52,663 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-25 18:07:52,664 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-25 18:07:52,664 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-25 18:07:52,664 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-25 18:07:52,664 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-25 18:07:52,664 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-25 18:07:52,665 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-25 18:07:52,665 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-25 18:07:52,665 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-25 18:07:52,665 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-25 18:07:52,665 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-25 18:07:52,666 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 18:07:52,666 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-25 18:07:52,666 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-25 18:07:52,666 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-25 18:07:52,666 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-25 18:07:52,667 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-25 18:07:52,667 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-25 18:07:52,667 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-25 18:07:52,667 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-11-25 18:07:52,667 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-25 18:07:52,668 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_6273b414-8063-4fc9-820c-e7244df3ff32/bin/uautomizer-ZsLfNo2U6R/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6273b414-8063-4fc9-820c-e7244df3ff32/bin/uautomizer-ZsLfNo2U6R Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a1648913be4b4e88120f8ece4966a58804b334c451c87254dfc42f8e396f396f [2022-11-25 18:07:52,916 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-25 18:07:52,941 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-25 18:07:52,944 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-25 18:07:52,946 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-25 18:07:52,946 INFO L275 PluginConnector]: CDTParser initialized [2022-11-25 18:07:52,948 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6273b414-8063-4fc9-820c-e7244df3ff32/bin/uautomizer-ZsLfNo2U6R/../../sv-benchmarks/c/weaver/popl20-min-max-inc-dec.wvr.c [2022-11-25 18:07:56,023 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-25 18:07:56,212 INFO L351 CDTParser]: Found 1 translation units. [2022-11-25 18:07:56,212 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6273b414-8063-4fc9-820c-e7244df3ff32/sv-benchmarks/c/weaver/popl20-min-max-inc-dec.wvr.c [2022-11-25 18:07:56,220 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6273b414-8063-4fc9-820c-e7244df3ff32/bin/uautomizer-ZsLfNo2U6R/data/7274c8acd/3172de4a24b44f1b957cf3c1355da2da/FLAGec09aa52c [2022-11-25 18:07:56,235 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6273b414-8063-4fc9-820c-e7244df3ff32/bin/uautomizer-ZsLfNo2U6R/data/7274c8acd/3172de4a24b44f1b957cf3c1355da2da [2022-11-25 18:07:56,238 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-25 18:07:56,240 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-25 18:07:56,241 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-25 18:07:56,242 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-25 18:07:56,245 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-25 18:07:56,246 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 06:07:56" (1/1) ... [2022-11-25 18:07:56,247 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@79b9684b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:07:56, skipping insertion in model container [2022-11-25 18:07:56,248 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 06:07:56" (1/1) ... [2022-11-25 18:07:56,256 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-25 18:07:56,277 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-25 18:07:56,435 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 18:07:56,437 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 18:07:56,437 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 18:07:56,438 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 18:07:56,442 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 18:07:56,444 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 18:07:56,447 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 18:07:56,448 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 18:07:56,449 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 18:07:56,449 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 18:07:56,450 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 18:07:56,451 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 18:07:56,453 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 18:07:56,454 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 18:07:56,456 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 18:07:56,458 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 18:07:56,459 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 18:07:56,461 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 18:07:56,471 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_6273b414-8063-4fc9-820c-e7244df3ff32/sv-benchmarks/c/weaver/popl20-min-max-inc-dec.wvr.c[3271,3284] [2022-11-25 18:07:56,482 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 18:07:56,498 INFO L203 MainTranslator]: Completed pre-run [2022-11-25 18:07:56,528 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 18:07:56,530 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 18:07:56,531 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 18:07:56,531 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 18:07:56,536 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 18:07:56,540 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 18:07:56,543 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 18:07:56,545 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 18:07:56,546 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 18:07:56,546 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 18:07:56,548 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 18:07:56,550 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 18:07:56,553 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 18:07:56,556 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 18:07:56,558 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 18:07:56,560 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 18:07:56,564 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 18:07:56,565 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 18:07:56,571 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_6273b414-8063-4fc9-820c-e7244df3ff32/sv-benchmarks/c/weaver/popl20-min-max-inc-dec.wvr.c[3271,3284] [2022-11-25 18:07:56,581 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 18:07:56,600 INFO L208 MainTranslator]: Completed translation [2022-11-25 18:07:56,601 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:07:56 WrapperNode [2022-11-25 18:07:56,601 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-25 18:07:56,603 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-25 18:07:56,603 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-25 18:07:56,603 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-25 18:07:56,611 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:07:56" (1/1) ... [2022-11-25 18:07:56,632 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:07:56" (1/1) ... [2022-11-25 18:07:56,675 INFO L138 Inliner]: procedures = 27, calls = 75, calls flagged for inlining = 9, calls inlined = 9, statements flattened = 184 [2022-11-25 18:07:56,676 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-25 18:07:56,677 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-25 18:07:56,677 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-25 18:07:56,677 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-25 18:07:56,687 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:07:56" (1/1) ... [2022-11-25 18:07:56,687 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:07:56" (1/1) ... [2022-11-25 18:07:56,700 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:07:56" (1/1) ... [2022-11-25 18:07:56,700 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:07:56" (1/1) ... [2022-11-25 18:07:56,708 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:07:56" (1/1) ... [2022-11-25 18:07:56,712 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:07:56" (1/1) ... [2022-11-25 18:07:56,714 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:07:56" (1/1) ... [2022-11-25 18:07:56,716 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:07:56" (1/1) ... [2022-11-25 18:07:56,719 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-25 18:07:56,720 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-25 18:07:56,720 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-25 18:07:56,720 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-25 18:07:56,721 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:07:56" (1/1) ... [2022-11-25 18:07:56,728 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 18:07:56,741 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6273b414-8063-4fc9-820c-e7244df3ff32/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 18:07:56,755 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6273b414-8063-4fc9-820c-e7244df3ff32/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-25 18:07:56,787 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6273b414-8063-4fc9-820c-e7244df3ff32/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-25 18:07:56,810 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-25 18:07:56,810 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-25 18:07:56,810 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-25 18:07:56,811 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-25 18:07:56,811 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-11-25 18:07:56,811 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-11-25 18:07:56,811 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-11-25 18:07:56,811 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-11-25 18:07:56,811 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-11-25 18:07:56,812 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-11-25 18:07:56,812 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2022-11-25 18:07:56,812 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2022-11-25 18:07:56,812 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-25 18:07:56,812 INFO L130 BoogieDeclarations]: Found specification of procedure thread5 [2022-11-25 18:07:56,812 INFO L138 BoogieDeclarations]: Found implementation of procedure thread5 [2022-11-25 18:07:56,813 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-11-25 18:07:56,813 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-11-25 18:07:56,813 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-25 18:07:56,814 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-25 18:07:56,814 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-25 18:07:56,814 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-25 18:07:56,816 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-25 18:07:57,013 INFO L235 CfgBuilder]: Building ICFG [2022-11-25 18:07:57,015 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-25 18:07:57,518 INFO L276 CfgBuilder]: Performing block encoding [2022-11-25 18:07:57,748 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-25 18:07:57,748 INFO L300 CfgBuilder]: Removed 5 assume(true) statements. [2022-11-25 18:07:57,751 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 06:07:57 BoogieIcfgContainer [2022-11-25 18:07:57,751 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-25 18:07:57,753 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-25 18:07:57,754 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-25 18:07:57,757 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-25 18:07:57,757 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 06:07:56" (1/3) ... [2022-11-25 18:07:57,758 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7459e33 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 06:07:57, skipping insertion in model container [2022-11-25 18:07:57,758 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:07:56" (2/3) ... [2022-11-25 18:07:57,759 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7459e33 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 06:07:57, skipping insertion in model container [2022-11-25 18:07:57,759 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 06:07:57" (3/3) ... [2022-11-25 18:07:57,761 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-min-max-inc-dec.wvr.c [2022-11-25 18:07:57,770 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-25 18:07:57,780 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-25 18:07:57,780 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 16 error locations. [2022-11-25 18:07:57,780 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-25 18:07:57,875 INFO L144 ThreadInstanceAdder]: Constructed 5 joinOtherThreadTransitions. [2022-11-25 18:07:57,917 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 222 places, 220 transitions, 480 flow [2022-11-25 18:07:58,003 INFO L130 PetriNetUnfolder]: 14/215 cut-off events. [2022-11-25 18:07:58,003 INFO L131 PetriNetUnfolder]: For 5/5 co-relation queries the response was YES. [2022-11-25 18:07:58,013 INFO L83 FinitePrefix]: Finished finitePrefix Result has 236 conditions, 215 events. 14/215 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 236 event pairs, 0 based on Foata normal form. 0/185 useless extension candidates. Maximal degree in co-relation 177. Up to 2 conditions per place. [2022-11-25 18:07:58,014 INFO L82 GeneralOperation]: Start removeDead. Operand has 222 places, 220 transitions, 480 flow [2022-11-25 18:07:58,020 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 193 places, 190 transitions, 407 flow [2022-11-25 18:07:58,024 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-25 18:07:58,038 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 193 places, 190 transitions, 407 flow [2022-11-25 18:07:58,041 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 193 places, 190 transitions, 407 flow [2022-11-25 18:07:58,042 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 193 places, 190 transitions, 407 flow [2022-11-25 18:07:58,093 INFO L130 PetriNetUnfolder]: 13/190 cut-off events. [2022-11-25 18:07:58,093 INFO L131 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2022-11-25 18:07:58,096 INFO L83 FinitePrefix]: Finished finitePrefix Result has 210 conditions, 190 events. 13/190 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 235 event pairs, 0 based on Foata normal form. 0/161 useless extension candidates. Maximal degree in co-relation 177. Up to 2 conditions per place. [2022-11-25 18:07:58,100 INFO L119 LiptonReduction]: Number of co-enabled transitions 6742 [2022-11-25 18:08:10,570 INFO L134 LiptonReduction]: Checked pairs total: 10566 [2022-11-25 18:08:10,570 INFO L136 LiptonReduction]: Total number of compositions: 183 [2022-11-25 18:08:10,587 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-25 18:08:10,594 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=PETRI_NET, 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;@49383e98, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-25 18:08:10,595 INFO L358 AbstractCegarLoop]: Starting to check reachability of 35 error locations. [2022-11-25 18:08:10,597 INFO L130 PetriNetUnfolder]: 1/2 cut-off events. [2022-11-25 18:08:10,598 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-25 18:08:10,598 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 18:08:10,599 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1] [2022-11-25 18:08:10,599 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 32 more)] === [2022-11-25 18:08:10,605 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:08:10,605 INFO L85 PathProgramCache]: Analyzing trace with hash 30041, now seen corresponding path program 1 times [2022-11-25 18:08:10,612 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:08:10,612 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1758521295] [2022-11-25 18:08:10,613 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:08:10,613 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:08:10,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:08:10,981 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 18:08:10,981 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 18:08:10,982 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1758521295] [2022-11-25 18:08:10,982 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1758521295] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:08:10,982 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:08:10,983 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-25 18:08:10,984 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1505638211] [2022-11-25 18:08:10,985 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:08:10,994 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 18:08:10,994 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 18:08:11,016 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 18:08:11,017 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 18:08:11,047 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 184 out of 403 [2022-11-25 18:08:11,051 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 63 places, 52 transitions, 131 flow. Second operand has 3 states, 3 states have (on average 184.66666666666666) internal successors, (554), 3 states have internal predecessors, (554), 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) [2022-11-25 18:08:11,051 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 18:08:11,051 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 184 of 403 [2022-11-25 18:08:11,052 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 18:08:28,356 INFO L130 PetriNetUnfolder]: 127931/152813 cut-off events. [2022-11-25 18:08:28,356 INFO L131 PetriNetUnfolder]: For 3842/3842 co-relation queries the response was YES. [2022-11-25 18:08:28,658 INFO L83 FinitePrefix]: Finished finitePrefix Result has 312975 conditions, 152813 events. 127931/152813 cut-off events. For 3842/3842 co-relation queries the response was YES. Maximal size of possible extension queue 7311. Compared 761108 event pairs, 81924 based on Foata normal form. 0/61503 useless extension candidates. Maximal degree in co-relation 138174. Up to 76423 conditions per place. [2022-11-25 18:08:29,508 INFO L137 encePairwiseOnDemand]: 396/403 looper letters, 89 selfloop transitions, 2 changer transitions 0/93 dead transitions. [2022-11-25 18:08:29,509 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 62 places, 93 transitions, 422 flow [2022-11-25 18:08:29,510 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 18:08:29,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-25 18:08:29,522 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 651 transitions. [2022-11-25 18:08:29,526 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5384615384615384 [2022-11-25 18:08:29,527 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 651 transitions. [2022-11-25 18:08:29,527 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 651 transitions. [2022-11-25 18:08:29,530 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 18:08:29,532 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 651 transitions. [2022-11-25 18:08:29,538 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 217.0) internal successors, (651), 3 states have internal predecessors, (651), 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) [2022-11-25 18:08:29,546 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 403.0) internal successors, (1612), 4 states have internal predecessors, (1612), 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) [2022-11-25 18:08:29,547 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 403.0) internal successors, (1612), 4 states have internal predecessors, (1612), 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) [2022-11-25 18:08:29,549 INFO L175 Difference]: Start difference. First operand has 63 places, 52 transitions, 131 flow. Second operand 3 states and 651 transitions. [2022-11-25 18:08:29,551 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 62 places, 93 transitions, 422 flow [2022-11-25 18:08:31,314 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 53 places, 93 transitions, 388 flow, removed 0 selfloop flow, removed 9 redundant places. [2022-11-25 18:08:31,317 INFO L231 Difference]: Finished difference. Result has 54 places, 50 transitions, 122 flow [2022-11-25 18:08:31,319 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=403, PETRI_DIFFERENCE_MINUEND_FLOW=108, PETRI_DIFFERENCE_MINUEND_PLACES=51, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=49, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=47, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=122, PETRI_PLACES=54, PETRI_TRANSITIONS=50} [2022-11-25 18:08:31,323 INFO L288 CegarLoopForPetriNet]: 63 programPoint places, -9 predicate places. [2022-11-25 18:08:31,323 INFO L495 AbstractCegarLoop]: Abstraction has has 54 places, 50 transitions, 122 flow [2022-11-25 18:08:31,324 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 184.66666666666666) internal successors, (554), 3 states have internal predecessors, (554), 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) [2022-11-25 18:08:31,324 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 18:08:31,324 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2022-11-25 18:08:31,324 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-25 18:08:31,325 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 32 more)] === [2022-11-25 18:08:31,325 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:08:31,326 INFO L85 PathProgramCache]: Analyzing trace with hash 932947, now seen corresponding path program 1 times [2022-11-25 18:08:31,326 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:08:31,326 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1466722868] [2022-11-25 18:08:31,326 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:08:31,327 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:08:31,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:08:31,500 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 18:08:31,500 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 18:08:31,500 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1466722868] [2022-11-25 18:08:31,501 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1466722868] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 18:08:31,501 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [430616874] [2022-11-25 18:08:31,501 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:08:31,501 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 18:08:31,501 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6273b414-8063-4fc9-820c-e7244df3ff32/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 18:08:31,505 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6273b414-8063-4fc9-820c-e7244df3ff32/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 18:08:31,531 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6273b414-8063-4fc9-820c-e7244df3ff32/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-25 18:08:31,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:08:31,620 INFO L263 TraceCheckSpWp]: Trace formula consists of 156 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-25 18:08:31,625 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 18:08:31,656 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 18:08:31,656 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 18:08:31,656 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [430616874] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:08:31,657 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-25 18:08:31,657 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 3 [2022-11-25 18:08:31,658 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2139785923] [2022-11-25 18:08:31,658 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:08:31,659 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-25 18:08:31,659 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 18:08:31,659 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-25 18:08:31,660 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-25 18:08:31,677 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 184 out of 403 [2022-11-25 18:08:31,678 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 54 places, 50 transitions, 122 flow. Second operand has 4 states, 4 states have (on average 184.75) internal successors, (739), 4 states have internal predecessors, (739), 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) [2022-11-25 18:08:31,679 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 18:08:31,679 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 184 of 403 [2022-11-25 18:08:31,679 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand