./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/weaver/parallel-barrier.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 38b53e6a Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b389fa85-718b-46a3-8573-016e60c1d7d3/bin/uautomizer-ZsLfNo2U6R/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b389fa85-718b-46a3-8573-016e60c1d7d3/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_b389fa85-718b-46a3-8573-016e60c1d7d3/bin/uautomizer-ZsLfNo2U6R/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b389fa85-718b-46a3-8573-016e60c1d7d3/bin/uautomizer-ZsLfNo2U6R/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/parallel-barrier.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b389fa85-718b-46a3-8573-016e60c1d7d3/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_b389fa85-718b-46a3-8573-016e60c1d7d3/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 22b51332425cd14048935a20a73abea0065b1633fac56d6d6be511ab67585236 --- 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 16:54:23,300 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-25 16:54:23,303 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-25 16:54:23,331 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-25 16:54:23,331 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-25 16:54:23,333 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-25 16:54:23,334 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-25 16:54:23,336 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-25 16:54:23,337 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-25 16:54:23,342 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-25 16:54:23,343 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-25 16:54:23,344 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-25 16:54:23,345 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-25 16:54:23,346 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-25 16:54:23,347 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-25 16:54:23,348 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-25 16:54:23,349 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-25 16:54:23,350 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-25 16:54:23,352 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-25 16:54:23,358 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-25 16:54:23,364 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-25 16:54:23,368 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-25 16:54:23,370 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-25 16:54:23,370 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-25 16:54:23,374 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-25 16:54:23,375 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-25 16:54:23,375 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-25 16:54:23,376 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-25 16:54:23,377 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-25 16:54:23,385 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-25 16:54:23,386 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-25 16:54:23,387 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-25 16:54:23,389 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-25 16:54:23,391 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-25 16:54:23,393 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-25 16:54:23,393 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-25 16:54:23,395 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-25 16:54:23,395 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-25 16:54:23,395 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-25 16:54:23,396 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-25 16:54:23,397 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-25 16:54:23,399 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b389fa85-718b-46a3-8573-016e60c1d7d3/bin/uautomizer-ZsLfNo2U6R/config/svcomp-Overflow-32bit-Automizer_Default.epf [2022-11-25 16:54:23,451 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-25 16:54:23,456 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-25 16:54:23,457 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-25 16:54:23,457 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-25 16:54:23,458 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-25 16:54:23,459 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-25 16:54:23,459 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-25 16:54:23,460 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-25 16:54:23,460 INFO L138 SettingsManager]: * Use SBE=true [2022-11-25 16:54:23,460 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-25 16:54:23,461 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-25 16:54:23,462 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-25 16:54:23,462 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-25 16:54:23,462 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-25 16:54:23,463 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-25 16:54:23,463 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-25 16:54:23,463 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-25 16:54:23,463 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-25 16:54:23,464 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-25 16:54:23,464 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-25 16:54:23,464 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-25 16:54:23,464 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-25 16:54:23,465 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-25 16:54:23,465 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-25 16:54:23,465 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-25 16:54:23,465 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-25 16:54:23,466 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 16:54:23,466 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-25 16:54:23,467 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-25 16:54:23,467 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-25 16:54:23,468 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-25 16:54:23,468 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-25 16:54:23,468 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-25 16:54:23,468 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-25 16:54:23,469 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-11-25 16:54:23,469 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-25 16:54:23,469 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_b389fa85-718b-46a3-8573-016e60c1d7d3/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b389fa85-718b-46a3-8573-016e60c1d7d3/bin/uautomizer-ZsLfNo2U6R Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 22b51332425cd14048935a20a73abea0065b1633fac56d6d6be511ab67585236 [2022-11-25 16:54:23,799 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-25 16:54:23,840 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-25 16:54:23,843 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-25 16:54:23,845 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-25 16:54:23,846 INFO L275 PluginConnector]: CDTParser initialized [2022-11-25 16:54:23,847 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b389fa85-718b-46a3-8573-016e60c1d7d3/bin/uautomizer-ZsLfNo2U6R/../../sv-benchmarks/c/weaver/parallel-barrier.wvr.c [2022-11-25 16:54:27,108 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-25 16:54:27,425 INFO L351 CDTParser]: Found 1 translation units. [2022-11-25 16:54:27,425 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b389fa85-718b-46a3-8573-016e60c1d7d3/sv-benchmarks/c/weaver/parallel-barrier.wvr.c [2022-11-25 16:54:27,432 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b389fa85-718b-46a3-8573-016e60c1d7d3/bin/uautomizer-ZsLfNo2U6R/data/d25e8c4a8/f0d0504ffaa44f4e964a4d8d746fbc06/FLAGe420c98a1 [2022-11-25 16:54:27,454 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b389fa85-718b-46a3-8573-016e60c1d7d3/bin/uautomizer-ZsLfNo2U6R/data/d25e8c4a8/f0d0504ffaa44f4e964a4d8d746fbc06 [2022-11-25 16:54:27,457 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-25 16:54:27,459 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-25 16:54:27,462 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-25 16:54:27,462 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-25 16:54:27,466 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-25 16:54:27,469 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 04:54:27" (1/1) ... [2022-11-25 16:54:27,471 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1fb8e903 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:54:27, skipping insertion in model container [2022-11-25 16:54:27,472 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 04:54:27" (1/1) ... [2022-11-25 16:54:27,481 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-25 16:54:27,508 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-25 16:54:27,715 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 16:54:27,718 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 16:54:27,719 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 16:54:27,724 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 16:54:27,725 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 16:54:27,726 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 16:54:27,727 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 16:54:27,729 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 16:54:27,729 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 16:54:27,730 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 16:54:27,730 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 16:54:27,731 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 16:54:27,734 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 16:54:27,735 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 16:54:27,735 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 16:54:27,736 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 16:54:27,736 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 16:54:27,737 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 16:54:27,738 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 16:54:27,740 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 16:54:27,741 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 16:54:27,741 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 16:54:27,741 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 16:54:27,742 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 16:54:27,762 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 16:54:27,764 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 16:54:27,764 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 16:54:27,765 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 16:54:27,765 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 16:54:27,770 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 16:54:27,770 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 16:54:27,771 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 16:54:27,772 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 16:54:27,772 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 16:54:27,773 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 16:54:27,774 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 16:54:27,776 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 16:54:27,777 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 16:54:27,777 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 16:54:27,778 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 16:54:27,778 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 16:54:27,779 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 16:54:27,779 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 16:54:27,783 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 16:54:27,784 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 16:54:27,784 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 16:54:27,784 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 16:54:27,785 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 16:54:27,808 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_b389fa85-718b-46a3-8573-016e60c1d7d3/sv-benchmarks/c/weaver/parallel-barrier.wvr.c[4722,4735] [2022-11-25 16:54:27,812 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 16:54:27,826 INFO L203 MainTranslator]: Completed pre-run [2022-11-25 16:54:27,849 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 16:54:27,850 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 16:54:27,850 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 16:54:27,851 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 16:54:27,852 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 16:54:27,852 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 16:54:27,852 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 16:54:27,853 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 16:54:27,853 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 16:54:27,854 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 16:54:27,854 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 16:54:27,854 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 16:54:27,855 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 16:54:27,856 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 16:54:27,856 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 16:54:27,857 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 16:54:27,857 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 16:54:27,858 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 16:54:27,859 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 16:54:27,860 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 16:54:27,860 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 16:54:27,861 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 16:54:27,862 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 16:54:27,862 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 16:54:27,880 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 16:54:27,881 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 16:54:27,882 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 16:54:27,883 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 16:54:27,883 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 16:54:27,884 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 16:54:27,884 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 16:54:27,884 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 16:54:27,885 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 16:54:27,885 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 16:54:27,886 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 16:54:27,887 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 16:54:27,890 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 16:54:27,891 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 16:54:27,897 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 16:54:27,898 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 16:54:27,900 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 16:54:27,901 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 16:54:27,901 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 16:54:27,902 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 16:54:27,909 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 16:54:27,910 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 16:54:27,910 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 16:54:27,911 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 16:54:27,916 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_b389fa85-718b-46a3-8573-016e60c1d7d3/sv-benchmarks/c/weaver/parallel-barrier.wvr.c[4722,4735] [2022-11-25 16:54:27,918 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 16:54:27,933 INFO L208 MainTranslator]: Completed translation [2022-11-25 16:54:27,938 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:54:27 WrapperNode [2022-11-25 16:54:27,939 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-25 16:54:27,940 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-25 16:54:27,941 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-25 16:54:27,941 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-25 16:54:27,948 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:54:27" (1/1) ... [2022-11-25 16:54:27,967 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:54:27" (1/1) ... [2022-11-25 16:54:28,008 INFO L138 Inliner]: procedures = 25, calls = 98, calls flagged for inlining = 10, calls inlined = 10, statements flattened = 269 [2022-11-25 16:54:28,009 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-25 16:54:28,010 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-25 16:54:28,010 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-25 16:54:28,011 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-25 16:54:28,020 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:54:27" (1/1) ... [2022-11-25 16:54:28,021 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:54:27" (1/1) ... [2022-11-25 16:54:28,035 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:54:27" (1/1) ... [2022-11-25 16:54:28,040 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:54:27" (1/1) ... [2022-11-25 16:54:28,046 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:54:27" (1/1) ... [2022-11-25 16:54:28,064 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:54:27" (1/1) ... [2022-11-25 16:54:28,065 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:54:27" (1/1) ... [2022-11-25 16:54:28,067 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:54:27" (1/1) ... [2022-11-25 16:54:28,069 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-25 16:54:28,070 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-25 16:54:28,071 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-25 16:54:28,071 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-25 16:54:28,072 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:54:27" (1/1) ... [2022-11-25 16:54:28,084 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 16:54:28,098 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b389fa85-718b-46a3-8573-016e60c1d7d3/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 16:54:28,114 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b389fa85-718b-46a3-8573-016e60c1d7d3/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-25 16:54:28,141 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b389fa85-718b-46a3-8573-016e60c1d7d3/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-25 16:54:28,168 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-25 16:54:28,168 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-25 16:54:28,168 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-25 16:54:28,168 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-25 16:54:28,169 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-11-25 16:54:28,169 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-11-25 16:54:28,169 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-11-25 16:54:28,169 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-11-25 16:54:28,170 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-11-25 16:54:28,170 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-11-25 16:54:28,170 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2022-11-25 16:54:28,170 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2022-11-25 16:54:28,170 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-25 16:54:28,171 INFO L130 BoogieDeclarations]: Found specification of procedure thread5 [2022-11-25 16:54:28,171 INFO L138 BoogieDeclarations]: Found implementation of procedure thread5 [2022-11-25 16:54:28,172 INFO L130 BoogieDeclarations]: Found specification of procedure thread6 [2022-11-25 16:54:28,172 INFO L138 BoogieDeclarations]: Found implementation of procedure thread6 [2022-11-25 16:54:28,175 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-11-25 16:54:28,176 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-11-25 16:54:28,176 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-25 16:54:28,176 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-25 16:54:28,177 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-25 16:54:28,179 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 16:54:28,312 INFO L235 CfgBuilder]: Building ICFG [2022-11-25 16:54:28,321 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-25 16:54:28,807 INFO L276 CfgBuilder]: Performing block encoding [2022-11-25 16:54:28,973 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-25 16:54:28,973 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-25 16:54:28,976 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 04:54:28 BoogieIcfgContainer [2022-11-25 16:54:28,976 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-25 16:54:28,978 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-25 16:54:28,978 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-25 16:54:28,981 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-25 16:54:28,981 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 04:54:27" (1/3) ... [2022-11-25 16:54:28,982 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6320a63a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 04:54:28, skipping insertion in model container [2022-11-25 16:54:28,982 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:54:27" (2/3) ... [2022-11-25 16:54:28,983 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6320a63a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 04:54:28, skipping insertion in model container [2022-11-25 16:54:28,983 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 04:54:28" (3/3) ... [2022-11-25 16:54:28,984 INFO L112 eAbstractionObserver]: Analyzing ICFG parallel-barrier.wvr.c [2022-11-25 16:54:28,993 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-25 16:54:29,004 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-25 16:54:29,004 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 16 error locations. [2022-11-25 16:54:29,004 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-25 16:54:29,128 INFO L144 ThreadInstanceAdder]: Constructed 18 joinOtherThreadTransitions. [2022-11-25 16:54:29,176 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 261 places, 250 transitions, 572 flow [2022-11-25 16:54:29,314 INFO L130 PetriNetUnfolder]: 8/222 cut-off events. [2022-11-25 16:54:29,315 INFO L131 PetriNetUnfolder]: For 6/6 co-relation queries the response was YES. [2022-11-25 16:54:29,326 INFO L83 FinitePrefix]: Finished finitePrefix Result has 251 conditions, 222 events. 8/222 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 341 event pairs, 0 based on Foata normal form. 0/198 useless extension candidates. Maximal degree in co-relation 189. Up to 3 conditions per place. [2022-11-25 16:54:29,326 INFO L82 GeneralOperation]: Start removeDead. Operand has 261 places, 250 transitions, 572 flow [2022-11-25 16:54:29,334 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 215 places, 203 transitions, 451 flow [2022-11-25 16:54:29,343 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-25 16:54:29,365 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 215 places, 203 transitions, 451 flow [2022-11-25 16:54:29,369 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 215 places, 203 transitions, 451 flow [2022-11-25 16:54:29,369 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 215 places, 203 transitions, 451 flow [2022-11-25 16:54:29,426 INFO L130 PetriNetUnfolder]: 7/203 cut-off events. [2022-11-25 16:54:29,426 INFO L131 PetriNetUnfolder]: For 5/5 co-relation queries the response was YES. [2022-11-25 16:54:29,429 INFO L83 FinitePrefix]: Finished finitePrefix Result has 231 conditions, 203 events. 7/203 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 337 event pairs, 0 based on Foata normal form. 0/180 useless extension candidates. Maximal degree in co-relation 189. Up to 3 conditions per place. [2022-11-25 16:54:29,434 INFO L119 LiptonReduction]: Number of co-enabled transitions 10344 [2022-11-25 16:54:37,219 INFO L134 LiptonReduction]: Checked pairs total: 60118 [2022-11-25 16:54:37,219 INFO L136 LiptonReduction]: Total number of compositions: 168 [2022-11-25 16:54:37,237 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-25 16:54:37,244 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;@133de4f4, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-25 16:54:37,244 INFO L358 AbstractCegarLoop]: Starting to check reachability of 42 error locations. [2022-11-25 16:54:37,248 INFO L130 PetriNetUnfolder]: 0/11 cut-off events. [2022-11-25 16:54:37,249 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-25 16:54:37,249 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 16:54:37,250 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2022-11-25 16:54:37,250 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err6INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2022-11-25 16:54:37,256 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 16:54:37,256 INFO L85 PathProgramCache]: Analyzing trace with hash 869126686, now seen corresponding path program 1 times [2022-11-25 16:54:37,267 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 16:54:37,268 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1029629980] [2022-11-25 16:54:37,268 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:54:37,268 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 16:54:37,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:54:37,453 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 16:54:37,454 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 16:54:37,454 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1029629980] [2022-11-25 16:54:37,455 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1029629980] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 16:54:37,455 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 16:54:37,455 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-25 16:54:37,457 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [752309506] [2022-11-25 16:54:37,458 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 16:54:37,468 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-25 16:54:37,468 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 16:54:37,492 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-25 16:54:37,494 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-25 16:54:37,497 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 205 out of 422 [2022-11-25 16:54:37,501 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 96 places, 83 transitions, 211 flow. Second operand has 2 states, 2 states have (on average 207.5) internal successors, (415), 2 states have internal predecessors, (415), 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 16:54:37,501 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 16:54:37,501 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 205 of 422 [2022-11-25 16:54:37,503 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 16:55:04,329 INFO L130 PetriNetUnfolder]: 196365/256703 cut-off events. [2022-11-25 16:55:04,329 INFO L131 PetriNetUnfolder]: For 21102/21102 co-relation queries the response was YES. [2022-11-25 16:55:04,953 INFO L83 FinitePrefix]: Finished finitePrefix Result has 527009 conditions, 256703 events. 196365/256703 cut-off events. For 21102/21102 co-relation queries the response was YES. Maximal size of possible extension queue 9797. Compared 1701823 event pairs, 190641 based on Foata normal form. 636/182130 useless extension candidates. Maximal degree in co-relation 524741. Up to 246927 conditions per place. [2022-11-25 16:55:06,455 INFO L137 encePairwiseOnDemand]: 420/422 looper letters, 59 selfloop transitions, 0 changer transitions 0/81 dead transitions. [2022-11-25 16:55:06,455 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 97 places, 81 transitions, 325 flow [2022-11-25 16:55:06,457 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-25 16:55:06,460 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2022-11-25 16:55:06,476 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 471 transitions. [2022-11-25 16:55:06,482 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5580568720379147 [2022-11-25 16:55:06,483 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 471 transitions. [2022-11-25 16:55:06,483 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 471 transitions. [2022-11-25 16:55:06,488 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 16:55:06,491 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 471 transitions. [2022-11-25 16:55:06,499 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 235.5) internal successors, (471), 2 states have internal predecessors, (471), 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 16:55:06,509 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 422.0) internal successors, (1266), 3 states have internal predecessors, (1266), 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 16:55:06,510 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 422.0) internal successors, (1266), 3 states have internal predecessors, (1266), 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 16:55:06,512 INFO L175 Difference]: Start difference. First operand has 96 places, 83 transitions, 211 flow. Second operand 2 states and 471 transitions. [2022-11-25 16:55:06,514 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 97 places, 81 transitions, 325 flow [2022-11-25 16:55:11,594 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 86 places, 81 transitions, 296 flow, removed 0 selfloop flow, removed 11 redundant places. [2022-11-25 16:55:11,597 INFO L231 Difference]: Finished difference. Result has 86 places, 81 transitions, 178 flow [2022-11-25 16:55:11,599 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=422, PETRI_DIFFERENCE_MINUEND_FLOW=178, PETRI_DIFFERENCE_MINUEND_PLACES=85, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=81, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=81, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=178, PETRI_PLACES=86, PETRI_TRANSITIONS=81} [2022-11-25 16:55:11,603 INFO L288 CegarLoopForPetriNet]: 96 programPoint places, -10 predicate places. [2022-11-25 16:55:11,603 INFO L495 AbstractCegarLoop]: Abstraction has has 86 places, 81 transitions, 178 flow [2022-11-25 16:55:11,603 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 207.5) internal successors, (415), 2 states have internal predecessors, (415), 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 16:55:11,604 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 16:55:11,604 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 16:55:11,604 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-25 16:55:11,605 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err6INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2022-11-25 16:55:11,605 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 16:55:11,606 INFO L85 PathProgramCache]: Analyzing trace with hash 191482660, now seen corresponding path program 1 times [2022-11-25 16:55:11,606 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 16:55:11,606 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2106083771] [2022-11-25 16:55:11,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:55:11,607 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 16:55:11,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:55:11,787 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 16:55:11,787 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 16:55:11,788 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2106083771] [2022-11-25 16:55:11,788 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2106083771] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 16:55:11,788 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 16:55:11,788 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-25 16:55:11,789 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1654954276] [2022-11-25 16:55:11,789 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 16:55:11,790 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 16:55:11,790 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 16:55:11,791 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 16:55:11,791 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 16:55:11,808 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 203 out of 422 [2022-11-25 16:55:11,809 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 86 places, 81 transitions, 178 flow. Second operand has 3 states, 3 states have (on average 205.0) internal successors, (615), 3 states have internal predecessors, (615), 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 16:55:11,809 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 16:55:11,809 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 203 of 422 [2022-11-25 16:55:11,811 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand