./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/weaver/chl-poker-hand-symm.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_3201fb06-b088-479a-9661-ce13a33e9ada/bin/uautomizer-ZsLfNo2U6R/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3201fb06-b088-479a-9661-ce13a33e9ada/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_3201fb06-b088-479a-9661-ce13a33e9ada/bin/uautomizer-ZsLfNo2U6R/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3201fb06-b088-479a-9661-ce13a33e9ada/bin/uautomizer-ZsLfNo2U6R/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/chl-poker-hand-symm.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3201fb06-b088-479a-9661-ce13a33e9ada/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_3201fb06-b088-479a-9661-ce13a33e9ada/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 83dad307cba3d7607e136206fd160e874fd8a32bc88cbef3e5973f117a7651cc --- 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 17:03:01,325 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-25 17:03:01,327 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-25 17:03:01,355 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-25 17:03:01,356 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-25 17:03:01,359 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-25 17:03:01,362 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-25 17:03:01,366 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-25 17:03:01,368 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-25 17:03:01,373 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-25 17:03:01,375 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-25 17:03:01,378 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-25 17:03:01,378 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-25 17:03:01,383 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-25 17:03:01,384 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-25 17:03:01,386 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-25 17:03:01,388 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-25 17:03:01,389 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-25 17:03:01,390 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-25 17:03:01,397 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-25 17:03:01,398 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-25 17:03:01,400 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-25 17:03:01,401 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-25 17:03:01,403 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-25 17:03:01,412 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-25 17:03:01,414 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-25 17:03:01,414 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-25 17:03:01,416 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-25 17:03:01,418 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-25 17:03:01,419 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-25 17:03:01,420 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-25 17:03:01,421 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-25 17:03:01,423 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-25 17:03:01,424 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-25 17:03:01,425 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-25 17:03:01,425 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-25 17:03:01,426 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-25 17:03:01,426 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-25 17:03:01,426 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-25 17:03:01,427 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-25 17:03:01,428 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-25 17:03:01,429 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3201fb06-b088-479a-9661-ce13a33e9ada/bin/uautomizer-ZsLfNo2U6R/config/svcomp-Overflow-32bit-Automizer_Default.epf [2022-11-25 17:03:01,464 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-25 17:03:01,464 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-25 17:03:01,465 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-25 17:03:01,465 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-25 17:03:01,466 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-25 17:03:01,466 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-25 17:03:01,467 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-25 17:03:01,467 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-25 17:03:01,468 INFO L138 SettingsManager]: * Use SBE=true [2022-11-25 17:03:01,468 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-25 17:03:01,469 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-25 17:03:01,469 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-25 17:03:01,469 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-25 17:03:01,470 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-25 17:03:01,470 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-25 17:03:01,470 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-25 17:03:01,470 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-25 17:03:01,471 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-25 17:03:01,471 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-25 17:03:01,471 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-25 17:03:01,471 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-25 17:03:01,471 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-25 17:03:01,472 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-25 17:03:01,472 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-25 17:03:01,472 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-25 17:03:01,472 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-25 17:03:01,473 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 17:03:01,473 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-25 17:03:01,474 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-25 17:03:01,474 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-25 17:03:01,474 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-25 17:03:01,474 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-25 17:03:01,475 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-25 17:03:01,475 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-25 17:03:01,475 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-11-25 17:03:01,475 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-25 17:03:01,476 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_3201fb06-b088-479a-9661-ce13a33e9ada/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3201fb06-b088-479a-9661-ce13a33e9ada/bin/uautomizer-ZsLfNo2U6R Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 83dad307cba3d7607e136206fd160e874fd8a32bc88cbef3e5973f117a7651cc [2022-11-25 17:03:01,715 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-25 17:03:01,735 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-25 17:03:01,737 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-25 17:03:01,739 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-25 17:03:01,739 INFO L275 PluginConnector]: CDTParser initialized [2022-11-25 17:03:01,740 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3201fb06-b088-479a-9661-ce13a33e9ada/bin/uautomizer-ZsLfNo2U6R/../../sv-benchmarks/c/weaver/chl-poker-hand-symm.wvr.c [2022-11-25 17:03:04,783 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-25 17:03:05,033 INFO L351 CDTParser]: Found 1 translation units. [2022-11-25 17:03:05,034 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3201fb06-b088-479a-9661-ce13a33e9ada/sv-benchmarks/c/weaver/chl-poker-hand-symm.wvr.c [2022-11-25 17:03:05,049 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3201fb06-b088-479a-9661-ce13a33e9ada/bin/uautomizer-ZsLfNo2U6R/data/bd231d831/102cc9b33112429cb82f4f3a5ec45a81/FLAG48d786e63 [2022-11-25 17:03:05,068 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3201fb06-b088-479a-9661-ce13a33e9ada/bin/uautomizer-ZsLfNo2U6R/data/bd231d831/102cc9b33112429cb82f4f3a5ec45a81 [2022-11-25 17:03:05,073 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-25 17:03:05,075 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-25 17:03:05,081 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-25 17:03:05,081 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-25 17:03:05,085 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-25 17:03:05,086 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 05:03:05" (1/1) ... [2022-11-25 17:03:05,087 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1c0152c9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:03:05, skipping insertion in model container [2022-11-25 17:03:05,088 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 05:03:05" (1/1) ... [2022-11-25 17:03:05,096 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-25 17:03:05,142 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-25 17:03:05,299 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 17:03:05,303 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 17:03:05,304 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 17:03:05,313 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 17:03:05,315 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 17:03:05,317 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 17:03:05,318 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 17:03:05,322 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 17:03:05,323 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 17:03:05,328 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 17:03:05,329 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 17:03:05,343 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 17:03:05,347 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 17:03:05,349 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 17:03:05,349 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 17:03:05,354 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 17:03:05,354 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 17:03:05,358 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 17:03:05,359 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 17:03:05,363 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 17:03:05,364 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 17:03:05,367 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 17:03:05,372 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 17:03:05,375 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 17:03:05,375 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 17:03:05,380 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 17:03:05,381 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 17:03:05,388 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 17:03:05,388 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 17:03:05,393 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 17:03:05,393 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 17:03:05,400 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 17:03:05,402 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 17:03:05,414 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 17:03:05,419 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 17:03:05,421 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 17:03:05,421 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 17:03:05,439 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 17:03:05,441 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 17:03:05,444 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 17:03:05,450 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 17:03:05,453 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 17:03:05,460 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 17:03:05,463 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 17:03:05,473 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_3201fb06-b088-479a-9661-ce13a33e9ada/sv-benchmarks/c/weaver/chl-poker-hand-symm.wvr.c[12821,12834] [2022-11-25 17:03:05,500 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 17:03:05,516 INFO L203 MainTranslator]: Completed pre-run [2022-11-25 17:03:05,532 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 17:03:05,534 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 17:03:05,535 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 17:03:05,539 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 17:03:05,539 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 17:03:05,541 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 17:03:05,541 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 17:03:05,543 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 17:03:05,544 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 17:03:05,547 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 17:03:05,548 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 17:03:05,553 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 17:03:05,553 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 17:03:05,555 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 17:03:05,555 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 17:03:05,559 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 17:03:05,559 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 17:03:05,562 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 17:03:05,563 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 17:03:05,565 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 17:03:05,566 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 17:03:05,568 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 17:03:05,570 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 17:03:05,572 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 17:03:05,572 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 17:03:05,576 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 17:03:05,577 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 17:03:05,578 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 17:03:05,578 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 17:03:05,580 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 17:03:05,581 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 17:03:05,584 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 17:03:05,584 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 17:03:05,589 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 17:03:05,589 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 17:03:05,590 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 17:03:05,591 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 17:03:05,594 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 17:03:05,595 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 17:03:05,597 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 17:03:05,598 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 17:03:05,601 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 17:03:05,602 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 17:03:05,604 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 17:03:05,609 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_3201fb06-b088-479a-9661-ce13a33e9ada/sv-benchmarks/c/weaver/chl-poker-hand-symm.wvr.c[12821,12834] [2022-11-25 17:03:05,614 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 17:03:05,634 INFO L208 MainTranslator]: Completed translation [2022-11-25 17:03:05,635 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:03:05 WrapperNode [2022-11-25 17:03:05,635 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-25 17:03:05,636 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-25 17:03:05,636 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-25 17:03:05,636 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-25 17:03:05,644 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:03:05" (1/1) ... [2022-11-25 17:03:05,665 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:03:05" (1/1) ... [2022-11-25 17:03:05,746 INFO L138 Inliner]: procedures = 25, calls = 307, calls flagged for inlining = 69, calls inlined = 97, statements flattened = 1656 [2022-11-25 17:03:05,746 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-25 17:03:05,747 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-25 17:03:05,747 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-25 17:03:05,748 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-25 17:03:05,757 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:03:05" (1/1) ... [2022-11-25 17:03:05,758 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:03:05" (1/1) ... [2022-11-25 17:03:05,781 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:03:05" (1/1) ... [2022-11-25 17:03:05,782 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:03:05" (1/1) ... [2022-11-25 17:03:05,821 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:03:05" (1/1) ... [2022-11-25 17:03:05,855 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:03:05" (1/1) ... [2022-11-25 17:03:05,859 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:03:05" (1/1) ... [2022-11-25 17:03:05,864 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:03:05" (1/1) ... [2022-11-25 17:03:05,873 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-25 17:03:05,874 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-25 17:03:05,875 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-25 17:03:05,875 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-25 17:03:05,876 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:03:05" (1/1) ... [2022-11-25 17:03:05,883 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 17:03:05,898 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3201fb06-b088-479a-9661-ce13a33e9ada/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:03:05,915 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3201fb06-b088-479a-9661-ce13a33e9ada/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-25 17:03:05,943 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3201fb06-b088-479a-9661-ce13a33e9ada/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-25 17:03:05,967 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-25 17:03:05,967 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-25 17:03:05,967 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-25 17:03:05,967 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-25 17:03:05,967 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-11-25 17:03:05,968 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-11-25 17:03:05,968 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-11-25 17:03:05,969 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-11-25 17:03:05,969 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-25 17:03:05,969 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-11-25 17:03:05,969 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-11-25 17:03:05,969 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-25 17:03:05,969 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-25 17:03:05,970 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-25 17:03:05,970 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-25 17:03:05,972 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 17:03:06,260 INFO L235 CfgBuilder]: Building ICFG [2022-11-25 17:03:06,262 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-25 17:03:08,327 INFO L276 CfgBuilder]: Performing block encoding [2022-11-25 17:03:11,353 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-25 17:03:11,353 INFO L300 CfgBuilder]: Removed 12 assume(true) statements. [2022-11-25 17:03:11,357 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 05:03:11 BoogieIcfgContainer [2022-11-25 17:03:11,358 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-25 17:03:11,361 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-25 17:03:11,362 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-25 17:03:11,369 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-25 17:03:11,370 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 05:03:05" (1/3) ... [2022-11-25 17:03:11,372 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@20f3eb0d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 05:03:11, skipping insertion in model container [2022-11-25 17:03:11,372 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:03:05" (2/3) ... [2022-11-25 17:03:11,373 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@20f3eb0d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 05:03:11, skipping insertion in model container [2022-11-25 17:03:11,374 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 05:03:11" (3/3) ... [2022-11-25 17:03:11,376 INFO L112 eAbstractionObserver]: Analyzing ICFG chl-poker-hand-symm.wvr.c [2022-11-25 17:03:11,386 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-25 17:03:11,397 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-25 17:03:11,402 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 70 error locations. [2022-11-25 17:03:11,402 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-25 17:03:12,368 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-11-25 17:03:12,430 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 517 places, 563 transitions, 1142 flow [2022-11-25 17:03:12,818 INFO L130 PetriNetUnfolder]: 53/561 cut-off events. [2022-11-25 17:03:12,818 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-11-25 17:03:12,829 INFO L83 FinitePrefix]: Finished finitePrefix Result has 570 conditions, 561 events. 53/561 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 979 event pairs, 0 based on Foata normal form. 0/438 useless extension candidates. Maximal degree in co-relation 460. Up to 7 conditions per place. [2022-11-25 17:03:12,829 INFO L82 GeneralOperation]: Start removeDead. Operand has 517 places, 563 transitions, 1142 flow [2022-11-25 17:03:12,842 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 498 places, 543 transitions, 1098 flow [2022-11-25 17:03:12,847 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-25 17:03:12,870 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 498 places, 543 transitions, 1098 flow [2022-11-25 17:03:12,875 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 498 places, 543 transitions, 1098 flow [2022-11-25 17:03:12,876 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 498 places, 543 transitions, 1098 flow [2022-11-25 17:03:13,093 INFO L130 PetriNetUnfolder]: 52/543 cut-off events. [2022-11-25 17:03:13,094 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-11-25 17:03:13,098 INFO L83 FinitePrefix]: Finished finitePrefix Result has 552 conditions, 543 events. 52/543 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 975 event pairs, 0 based on Foata normal form. 0/422 useless extension candidates. Maximal degree in co-relation 460. Up to 7 conditions per place. [2022-11-25 17:03:13,106 INFO L119 LiptonReduction]: Number of co-enabled transitions 12848 [2022-11-25 17:05:56,588 INFO L134 LiptonReduction]: Checked pairs total: 14247 [2022-11-25 17:05:56,588 INFO L136 LiptonReduction]: Total number of compositions: 659 [2022-11-25 17:05:56,604 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-25 17:05:56,610 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;@db62d87, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-25 17:05:56,611 INFO L358 AbstractCegarLoop]: Starting to check reachability of 124 error locations. [2022-11-25 17:05:56,614 INFO L130 PetriNetUnfolder]: 1/2 cut-off events. [2022-11-25 17:05:56,614 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-25 17:05:56,614 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 17:05:56,615 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1] [2022-11-25 17:05:56,616 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (and 121 more)] === [2022-11-25 17:05:56,620 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:05:56,621 INFO L85 PathProgramCache]: Analyzing trace with hash 205740, now seen corresponding path program 1 times [2022-11-25 17:05:56,630 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:05:56,631 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1809036222] [2022-11-25 17:05:56,631 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:05:56,632 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:05:56,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:05:56,973 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:05:56,974 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:05:56,974 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1809036222] [2022-11-25 17:05:56,975 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1809036222] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:05:56,975 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:05:56,975 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-25 17:05:56,977 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1118783297] [2022-11-25 17:05:56,977 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:05:56,986 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 17:05:56,986 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:05:57,007 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 17:05:57,008 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 17:05:57,122 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 429 out of 1222 [2022-11-25 17:05:57,129 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 99 places, 108 transitions, 228 flow. Second operand has 3 states, 3 states have (on average 429.6666666666667) internal successors, (1289), 3 states have internal predecessors, (1289), 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 17:05:57,129 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 17:05:57,129 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 429 of 1222 [2022-11-25 17:05:57,131 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 17:06:02,162 INFO L130 PetriNetUnfolder]: 3359/5327 cut-off events. [2022-11-25 17:06:02,162 INFO L131 PetriNetUnfolder]: For 120/120 co-relation queries the response was YES. [2022-11-25 17:06:02,170 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10790 conditions, 5327 events. 3359/5327 cut-off events. For 120/120 co-relation queries the response was YES. Maximal size of possible extension queue 695. Compared 34429 event pairs, 2640 based on Foata normal form. 2/1601 useless extension candidates. Maximal degree in co-relation 5136. Up to 2673 conditions per place. [2022-11-25 17:06:02,202 INFO L137 encePairwiseOnDemand]: 1170/1222 looper letters, 141 selfloop transitions, 16 changer transitions 2/159 dead transitions. [2022-11-25 17:06:02,202 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 81 places, 159 transitions, 660 flow [2022-11-25 17:06:02,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 17:06:02,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-25 17:06:02,222 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1502 transitions. [2022-11-25 17:06:02,226 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4097108565193672 [2022-11-25 17:06:02,227 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1502 transitions. [2022-11-25 17:06:02,227 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1502 transitions. [2022-11-25 17:06:02,232 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 17:06:02,234 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1502 transitions. [2022-11-25 17:06:02,242 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 500.6666666666667) internal successors, (1502), 3 states have internal predecessors, (1502), 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 17:06:02,260 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1222.0) internal successors, (4888), 4 states have internal predecessors, (4888), 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 17:06:02,263 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1222.0) internal successors, (4888), 4 states have internal predecessors, (4888), 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 17:06:02,265 INFO L175 Difference]: Start difference. First operand has 99 places, 108 transitions, 228 flow. Second operand 3 states and 1502 transitions. [2022-11-25 17:06:02,266 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 81 places, 159 transitions, 660 flow [2022-11-25 17:06:02,271 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 77 places, 159 transitions, 644 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-11-25 17:06:02,276 INFO L231 Difference]: Finished difference. Result has 79 places, 102 transitions, 333 flow [2022-11-25 17:06:02,278 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=1222, PETRI_DIFFERENCE_MINUEND_FLOW=180, PETRI_DIFFERENCE_MINUEND_PLACES=75, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=88, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=72, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=333, PETRI_PLACES=79, PETRI_TRANSITIONS=102} [2022-11-25 17:06:02,283 INFO L288 CegarLoopForPetriNet]: 99 programPoint places, -20 predicate places. [2022-11-25 17:06:02,283 INFO L495 AbstractCegarLoop]: Abstraction has has 79 places, 102 transitions, 333 flow [2022-11-25 17:06:02,284 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 429.6666666666667) internal successors, (1289), 3 states have internal predecessors, (1289), 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 17:06:02,285 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 17:06:02,285 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2022-11-25 17:06:02,285 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-25 17:06:02,286 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (and 121 more)] === [2022-11-25 17:06:02,286 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:06:02,286 INFO L85 PathProgramCache]: Analyzing trace with hash 6385651, now seen corresponding path program 1 times [2022-11-25 17:06:02,287 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:06:02,287 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1157229464] [2022-11-25 17:06:02,287 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:06:02,287 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:06:02,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:06:02,472 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 17:06:02,472 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:06:02,473 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1157229464] [2022-11-25 17:06:02,473 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1157229464] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 17:06:02,473 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1799130892] [2022-11-25 17:06:02,473 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:06:02,474 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 17:06:02,474 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3201fb06-b088-479a-9661-ce13a33e9ada/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:06:02,477 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3201fb06-b088-479a-9661-ce13a33e9ada/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 17:06:02,485 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3201fb06-b088-479a-9661-ce13a33e9ada/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-25 17:06:03,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:06:03,471 INFO L263 TraceCheckSpWp]: Trace formula consists of 140 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-25 17:06:03,476 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 17:06:03,521 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 17:06:03,521 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 17:06:03,542 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 17:06:03,543 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1799130892] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 17:06:03,543 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-25 17:06:03,543 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2, 2, 2] total 5 [2022-11-25 17:06:03,544 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1276561743] [2022-11-25 17:06:03,544 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-25 17:06:03,545 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-25 17:06:03,545 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:06:03,546 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-25 17:06:03,546 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2022-11-25 17:06:03,806 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 429 out of 1222 [2022-11-25 17:06:03,810 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 79 places, 102 transitions, 333 flow. Second operand has 7 states, 7 states have (on average 430.14285714285717) internal successors, (3011), 7 states have internal predecessors, (3011), 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 17:06:03,810 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 17:06:03,810 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 429 of 1222 [2022-11-25 17:06:03,810 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 17:06:15,222 INFO L130 PetriNetUnfolder]: 8420/13311 cut-off events. [2022-11-25 17:06:15,222 INFO L131 PetriNetUnfolder]: For 45/45 co-relation queries the response was YES. [2022-11-25 17:06:15,236 INFO L83 FinitePrefix]: Finished finitePrefix Result has 26889 conditions, 13311 events. 8420/13311 cut-off events. For 45/45 co-relation queries the response was YES. Maximal size of possible extension queue 1158. Compared 93552 event pairs, 6600 based on Foata normal form. 0/4031 useless extension candidates. Maximal degree in co-relation 21227. Up to 2675 conditions per place. [2022-11-25 17:06:15,295 INFO L137 encePairwiseOnDemand]: 1190/1222 looper letters, 298 selfloop transitions, 93 changer transitions 0/391 dead transitions. [2022-11-25 17:06:15,295 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 84 places, 391 transitions, 1885 flow [2022-11-25 17:06:15,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-25 17:06:15,296 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-11-25 17:06:15,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 3418 transitions. [2022-11-25 17:06:15,305 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.3995791442599953 [2022-11-25 17:06:15,305 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 3418 transitions. [2022-11-25 17:06:15,305 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 3418 transitions. [2022-11-25 17:06:15,308 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 17:06:15,308 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 3418 transitions. [2022-11-25 17:06:15,315 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 488.2857142857143) internal successors, (3418), 7 states have internal predecessors, (3418), 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 17:06:15,331 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 1222.0) internal successors, (9776), 8 states have internal predecessors, (9776), 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 17:06:15,336 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 1222.0) internal successors, (9776), 8 states have internal predecessors, (9776), 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 17:06:15,336 INFO L175 Difference]: Start difference. First operand has 79 places, 102 transitions, 333 flow. Second operand 7 states and 3418 transitions. [2022-11-25 17:06:15,337 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 84 places, 391 transitions, 1885 flow [2022-11-25 17:06:15,341 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 82 places, 391 transitions, 1811 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-25 17:06:15,345 INFO L231 Difference]: Finished difference. Result has 85 places, 171 transitions, 920 flow [2022-11-25 17:06:15,346 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=1222, PETRI_DIFFERENCE_MINUEND_FLOW=301, PETRI_DIFFERENCE_MINUEND_PLACES=76, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=102, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=32, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=70, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=920, PETRI_PLACES=85, PETRI_TRANSITIONS=171} [2022-11-25 17:06:15,346 INFO L288 CegarLoopForPetriNet]: 99 programPoint places, -14 predicate places. [2022-11-25 17:06:15,347 INFO L495 AbstractCegarLoop]: Abstraction has has 85 places, 171 transitions, 920 flow [2022-11-25 17:06:15,349 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 430.14285714285717) internal successors, (3011), 7 states have internal predecessors, (3011), 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 17:06:15,349 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 17:06:15,349 INFO L209 CegarLoopForPetriNet]: trace histogram [2, 1, 1] [2022-11-25 17:06:15,364 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3201fb06-b088-479a-9661-ce13a33e9ada/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-11-25 17:06:15,564 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3201fb06-b088-479a-9661-ce13a33e9ada/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 17:06:15,565 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (and 121 more)] === [2022-11-25 17:06:15,566 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:06:15,566 INFO L85 PathProgramCache]: Analyzing trace with hash 197962924, now seen corresponding path program 1 times [2022-11-25 17:06:15,566 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:06:15,566 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [652154080] [2022-11-25 17:06:15,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:06:15,567 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:06:15,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:06:15,665 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-25 17:06:15,665 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:06:15,665 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [652154080] [2022-11-25 17:06:15,666 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [652154080] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:06:15,666 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:06:15,666 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-25 17:06:15,666 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [665937904] [2022-11-25 17:06:15,667 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:06:15,667 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 17:06:15,667 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:06:15,668 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 17:06:15,668 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 17:06:15,766 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 429 out of 1222 [2022-11-25 17:06:15,768 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 85 places, 171 transitions, 920 flow. Second operand has 3 states, 3 states have (on average 430.3333333333333) internal successors, (1291), 3 states have internal predecessors, (1291), 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 17:06:15,768 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 17:06:15,768 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 429 of 1222 [2022-11-25 17:06:15,768 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 17:06:24,612 INFO L130 PetriNetUnfolder]: 8396/13279 cut-off events. [2022-11-25 17:06:24,613 INFO L131 PetriNetUnfolder]: For 60/60 co-relation queries the response was YES. [2022-11-25 17:06:24,627 INFO L83 FinitePrefix]: Finished finitePrefix Result has 26897 conditions, 13279 events. 8396/13279 cut-off events. For 60/60 co-relation queries the response was YES. Maximal size of possible extension queue 1209. Compared 94275 event pairs, 6600 based on Foata normal form. 2/4027 useless extension candidates. Maximal degree in co-relation 16067. Up to 13279 conditions per place. [2022-11-25 17:06:24,672 INFO L137 encePairwiseOnDemand]: 1213/1222 looper letters, 138 selfloop transitions, 1 changer transitions 0/139 dead transitions. [2022-11-25 17:06:24,672 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 78 places, 139 transitions, 982 flow [2022-11-25 17:06:24,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 17:06:24,673 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-25 17:06:24,676 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1374 transitions. [2022-11-25 17:06:24,677 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.37479541734860883 [2022-11-25 17:06:24,677 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1374 transitions. [2022-11-25 17:06:24,677 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1374 transitions. [2022-11-25 17:06:24,678 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 17:06:24,678 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1374 transitions. [2022-11-25 17:06:24,682 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 458.0) internal successors, (1374), 3 states have internal predecessors, (1374), 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 17:06:24,689 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1222.0) internal successors, (4888), 4 states have internal predecessors, (4888), 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 17:06:24,692 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1222.0) internal successors, (4888), 4 states have internal predecessors, (4888), 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 17:06:24,693 INFO L175 Difference]: Start difference. First operand has 85 places, 171 transitions, 920 flow. Second operand 3 states and 1374 transitions. [2022-11-25 17:06:24,693 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 78 places, 139 transitions, 982 flow [2022-11-25 17:06:24,696 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 77 places, 139 transitions, 897 flow, removed 24 selfloop flow, removed 1 redundant places. [2022-11-25 17:06:24,699 INFO L231 Difference]: Finished difference. Result has 77 places, 139 transitions, 621 flow [2022-11-25 17:06:24,700 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=1222, PETRI_DIFFERENCE_MINUEND_FLOW=619, PETRI_DIFFERENCE_MINUEND_PLACES=75, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=139, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=138, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=621, PETRI_PLACES=77, PETRI_TRANSITIONS=139} [2022-11-25 17:06:24,700 INFO L288 CegarLoopForPetriNet]: 99 programPoint places, -22 predicate places. [2022-11-25 17:06:24,701 INFO L495 AbstractCegarLoop]: Abstraction has has 77 places, 139 transitions, 621 flow [2022-11-25 17:06:24,702 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 430.3333333333333) internal successors, (1291), 3 states have internal predecessors, (1291), 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 17:06:24,702 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 17:06:24,702 INFO L209 CegarLoopForPetriNet]: trace histogram [4, 1, 1] [2022-11-25 17:06:24,702 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-25 17:06:24,703 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (and 121 more)] === [2022-11-25 17:06:24,703 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:06:24,703 INFO L85 PathProgramCache]: Analyzing trace with hash 1264055723, now seen corresponding path program 2 times [2022-11-25 17:06:24,703 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:06:24,704 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1670164684] [2022-11-25 17:06:24,704 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:06:24,704 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:06:24,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:06:24,859 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:06:24,859 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:06:24,859 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1670164684] [2022-11-25 17:06:24,859 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1670164684] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 17:06:24,860 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [54686328] [2022-11-25 17:06:24,860 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-25 17:06:24,860 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 17:06:24,860 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3201fb06-b088-479a-9661-ce13a33e9ada/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:06:24,864 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3201fb06-b088-479a-9661-ce13a33e9ada/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 17:06:24,891 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3201fb06-b088-479a-9661-ce13a33e9ada/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-25 17:06:25,880 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-11-25 17:06:25,881 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-25 17:06:25,882 INFO L263 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-25 17:06:25,883 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 17:06:25,899 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-11-25 17:06:25,899 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 17:06:25,899 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [54686328] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:06:25,899 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-25 17:06:25,900 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [5] total 6 [2022-11-25 17:06:25,900 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [740688852] [2022-11-25 17:06:25,900 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:06:25,900 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 17:06:25,901 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:06:25,901 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 17:06:25,901 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-11-25 17:06:26,007 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 437 out of 1222 [2022-11-25 17:06:26,008 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 77 places, 139 transitions, 621 flow. Second operand has 3 states, 3 states have (on average 438.0) internal successors, (1314), 3 states have internal predecessors, (1314), 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 17:06:26,008 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 17:06:26,008 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 437 of 1222 [2022-11-25 17:06:26,009 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 17:06:34,507 INFO L130 PetriNetUnfolder]: 8396/13273 cut-off events. [2022-11-25 17:06:34,507 INFO L131 PetriNetUnfolder]: For 69/69 co-relation queries the response was YES. [2022-11-25 17:06:34,528 INFO L83 FinitePrefix]: Finished finitePrefix Result has 26810 conditions, 13273 events. 8396/13273 cut-off events. For 69/69 co-relation queries the response was YES. Maximal size of possible extension queue 1251. Compared 94225 event pairs, 6600 based on Foata normal form. 6/4032 useless extension candidates. Maximal degree in co-relation 26798. Up to 13218 conditions per place. [2022-11-25 17:06:34,572 INFO L137 encePairwiseOnDemand]: 1214/1222 looper letters, 127 selfloop transitions, 6 changer transitions 0/133 dead transitions. [2022-11-25 17:06:34,572 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 73 places, 133 transitions, 827 flow [2022-11-25 17:06:34,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 17:06:34,572 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-25 17:06:34,576 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1390 transitions. [2022-11-25 17:06:34,576 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.3791598472449536 [2022-11-25 17:06:34,577 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1390 transitions. [2022-11-25 17:06:34,577 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1390 transitions. [2022-11-25 17:06:34,578 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 17:06:34,578 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1390 transitions. [2022-11-25 17:06:34,581 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 463.3333333333333) internal successors, (1390), 3 states have internal predecessors, (1390), 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 17:06:34,588 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1222.0) internal successors, (4888), 4 states have internal predecessors, (4888), 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 17:06:34,590 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1222.0) internal successors, (4888), 4 states have internal predecessors, (4888), 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 17:06:34,590 INFO L175 Difference]: Start difference. First operand has 77 places, 139 transitions, 621 flow. Second operand 3 states and 1390 transitions. [2022-11-25 17:06:34,591 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 73 places, 133 transitions, 827 flow [2022-11-25 17:06:34,593 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 72 places, 133 transitions, 826 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-25 17:06:34,595 INFO L231 Difference]: Finished difference. Result has 72 places, 133 transitions, 572 flow [2022-11-25 17:06:34,595 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=1222, PETRI_DIFFERENCE_MINUEND_FLOW=560, PETRI_DIFFERENCE_MINUEND_PLACES=70, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=133, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=127, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=572, PETRI_PLACES=72, PETRI_TRANSITIONS=133} [2022-11-25 17:06:34,596 INFO L288 CegarLoopForPetriNet]: 99 programPoint places, -27 predicate places. [2022-11-25 17:06:34,597 INFO L495 AbstractCegarLoop]: Abstraction has has 72 places, 133 transitions, 572 flow [2022-11-25 17:06:34,597 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 438.0) internal successors, (1314), 3 states have internal predecessors, (1314), 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 17:06:34,597 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 17:06:34,598 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:06:34,612 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3201fb06-b088-479a-9661-ce13a33e9ada/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-25 17:06:34,807 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3201fb06-b088-479a-9661-ce13a33e9ada/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 17:06:34,808 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting thread1Err22ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (and 121 more)] === [2022-11-25 17:06:34,808 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:06:34,808 INFO L85 PathProgramCache]: Analyzing trace with hash 1365235712, now seen corresponding path program 1 times [2022-11-25 17:06:34,808 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:06:34,808 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1151518313] [2022-11-25 17:06:34,808 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:06:34,809 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:06:34,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:06:35,070 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 17:06:35,070 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:06:35,071 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1151518313] [2022-11-25 17:06:35,071 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1151518313] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:06:35,071 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:06:35,071 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 17:06:35,072 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1190644327] [2022-11-25 17:06:35,077 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:06:35,077 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 17:06:35,078 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:06:35,078 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 17:06:35,078 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 17:06:35,242 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 421 out of 1222 [2022-11-25 17:06:35,243 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 72 places, 133 transitions, 572 flow. Second operand has 3 states, 3 states have (on average 424.6666666666667) internal successors, (1274), 3 states have internal predecessors, (1274), 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 17:06:35,244 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 17:06:35,244 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 421 of 1222 [2022-11-25 17:06:35,244 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 17:06:43,630 INFO L130 PetriNetUnfolder]: 8392/13269 cut-off events. [2022-11-25 17:06:43,630 INFO L131 PetriNetUnfolder]: For 54/54 co-relation queries the response was YES. [2022-11-25 17:06:43,653 INFO L83 FinitePrefix]: Finished finitePrefix Result has 26803 conditions, 13269 events. 8392/13269 cut-off events. For 54/54 co-relation queries the response was YES. Maximal size of possible extension queue 1260. Compared 94385 event pairs, 6600 based on Foata normal form. 4/4027 useless extension candidates. Maximal degree in co-relation 26790. Up to 13253 conditions per place. [2022-11-25 17:06:43,698 INFO L137 encePairwiseOnDemand]: 1213/1222 looper letters, 108 selfloop transitions, 21 changer transitions 0/129 dead transitions. [2022-11-25 17:06:43,698 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 74 places, 129 transitions, 812 flow [2022-11-25 17:06:43,699 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 17:06:43,699 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-25 17:06:43,703 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1344 transitions. [2022-11-25 17:06:43,704 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.36661211129296234 [2022-11-25 17:06:43,705 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1344 transitions. [2022-11-25 17:06:43,705 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1344 transitions. [2022-11-25 17:06:43,706 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 17:06:43,706 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1344 transitions. [2022-11-25 17:06:43,710 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 448.0) internal successors, (1344), 3 states have internal predecessors, (1344), 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 17:06:43,717 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1222.0) internal successors, (4888), 4 states have internal predecessors, (4888), 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 17:06:43,720 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1222.0) internal successors, (4888), 4 states have internal predecessors, (4888), 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 17:06:43,720 INFO L175 Difference]: Start difference. First operand has 72 places, 133 transitions, 572 flow. Second operand 3 states and 1344 transitions. [2022-11-25 17:06:43,720 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 74 places, 129 transitions, 812 flow [2022-11-25 17:06:43,722 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 72 places, 129 transitions, 802 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-25 17:06:43,725 INFO L231 Difference]: Finished difference. Result has 72 places, 129 transitions, 586 flow [2022-11-25 17:06:43,725 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=1222, PETRI_DIFFERENCE_MINUEND_FLOW=544, PETRI_DIFFERENCE_MINUEND_PLACES=70, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=129, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=21, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=108, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=586, PETRI_PLACES=72, PETRI_TRANSITIONS=129} [2022-11-25 17:06:43,726 INFO L288 CegarLoopForPetriNet]: 99 programPoint places, -27 predicate places. [2022-11-25 17:06:43,726 INFO L495 AbstractCegarLoop]: Abstraction has has 72 places, 129 transitions, 586 flow [2022-11-25 17:06:43,727 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 424.6666666666667) internal successors, (1274), 3 states have internal predecessors, (1274), 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 17:06:43,728 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 17:06:43,728 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:06:43,728 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-25 17:06:43,728 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting thread1Err21ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (and 121 more)] === [2022-11-25 17:06:43,729 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:06:43,729 INFO L85 PathProgramCache]: Analyzing trace with hash 832937087, now seen corresponding path program 1 times [2022-11-25 17:06:43,729 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:06:43,729 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1785801100] [2022-11-25 17:06:43,730 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:06:43,730 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:06:43,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:06:43,867 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-25 17:06:43,867 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:06:43,867 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1785801100] [2022-11-25 17:06:43,867 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1785801100] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:06:43,868 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:06:43,868 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-25 17:06:43,868 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [118978896] [2022-11-25 17:06:43,868 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:06:43,868 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 17:06:43,869 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:06:43,870 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 17:06:43,870 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 17:06:44,022 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 421 out of 1222 [2022-11-25 17:06:44,024 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 72 places, 129 transitions, 586 flow. Second operand has 3 states, 3 states have (on average 426.0) internal successors, (1278), 3 states have internal predecessors, (1278), 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 17:06:44,024 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 17:06:44,024 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 421 of 1222 [2022-11-25 17:06:44,024 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 17:06:53,712 INFO L130 PetriNetUnfolder]: 8390/13267 cut-off events. [2022-11-25 17:06:53,712 INFO L131 PetriNetUnfolder]: For 63/63 co-relation queries the response was YES. [2022-11-25 17:06:53,728 INFO L83 FinitePrefix]: Finished finitePrefix Result has 26812 conditions, 13267 events. 8390/13267 cut-off events. For 63/63 co-relation queries the response was YES. Maximal size of possible extension queue 1241. Compared 94377 event pairs, 6600 based on Foata normal form. 2/4026 useless extension candidates. Maximal degree in co-relation 26800. Up to 13263 conditions per place. [2022-11-25 17:06:53,762 INFO L137 encePairwiseOnDemand]: 1217/1222 looper letters, 120 selfloop transitions, 7 changer transitions 0/127 dead transitions. [2022-11-25 17:06:53,763 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 74 places, 127 transitions, 830 flow [2022-11-25 17:06:53,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 17:06:53,763 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-25 17:06:53,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1340 transitions. [2022-11-25 17:06:53,769 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.36552100381887614 [2022-11-25 17:06:53,769 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1340 transitions. [2022-11-25 17:06:53,769 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1340 transitions. [2022-11-25 17:06:53,770 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 17:06:53,771 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1340 transitions. [2022-11-25 17:06:53,774 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 446.6666666666667) internal successors, (1340), 3 states have internal predecessors, (1340), 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 17:06:53,782 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1222.0) internal successors, (4888), 4 states have internal predecessors, (4888), 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 17:06:53,784 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1222.0) internal successors, (4888), 4 states have internal predecessors, (4888), 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 17:06:53,784 INFO L175 Difference]: Start difference. First operand has 72 places, 129 transitions, 586 flow. Second operand 3 states and 1340 transitions. [2022-11-25 17:06:53,784 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 74 places, 127 transitions, 830 flow [2022-11-25 17:06:53,786 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 73 places, 127 transitions, 810 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-25 17:06:53,789 INFO L231 Difference]: Finished difference. Result has 73 places, 127 transitions, 570 flow [2022-11-25 17:06:53,789 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=1222, PETRI_DIFFERENCE_MINUEND_FLOW=556, PETRI_DIFFERENCE_MINUEND_PLACES=71, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=127, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=120, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=570, PETRI_PLACES=73, PETRI_TRANSITIONS=127} [2022-11-25 17:06:53,790 INFO L288 CegarLoopForPetriNet]: 99 programPoint places, -26 predicate places. [2022-11-25 17:06:53,790 INFO L495 AbstractCegarLoop]: Abstraction has has 73 places, 127 transitions, 570 flow [2022-11-25 17:06:53,791 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 426.0) internal successors, (1278), 3 states have internal predecessors, (1278), 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 17:06:53,792 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 17:06:53,792 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:06:53,792 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-25 17:06:53,792 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting thread1Err25ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (and 121 more)] === [2022-11-25 17:06:53,793 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:06:53,793 INFO L85 PathProgramCache]: Analyzing trace with hash -225252755, now seen corresponding path program 1 times [2022-11-25 17:06:53,793 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:06:53,793 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1508027328] [2022-11-25 17:06:53,794 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:06:53,794 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:06:53,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:06:53,984 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-25 17:06:53,984 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:06:53,984 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1508027328] [2022-11-25 17:06:53,985 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1508027328] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:06:53,985 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:06:53,985 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 17:06:53,985 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [706051079] [2022-11-25 17:06:53,985 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:06:53,986 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 17:06:53,986 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:06:53,986 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 17:06:53,987 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 17:06:54,168 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 421 out of 1222 [2022-11-25 17:06:54,171 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 73 places, 127 transitions, 570 flow. Second operand has 3 states, 3 states have (on average 426.6666666666667) internal successors, (1280), 3 states have internal predecessors, (1280), 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 17:06:54,171 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 17:06:54,171 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 421 of 1222 [2022-11-25 17:06:54,171 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 17:07:04,401 INFO L130 PetriNetUnfolder]: 6717/10627 cut-off events. [2022-11-25 17:07:04,401 INFO L131 PetriNetUnfolder]: For 45/45 co-relation queries the response was YES. [2022-11-25 17:07:04,417 INFO L83 FinitePrefix]: Finished finitePrefix Result has 21512 conditions, 10627 events. 6717/10627 cut-off events. For 45/45 co-relation queries the response was YES. Maximal size of possible extension queue 1140. Compared 74119 event pairs, 5280 based on Foata normal form. 2/3231 useless extension candidates. Maximal degree in co-relation 21499. Up to 10620 conditions per place. [2022-11-25 17:07:04,447 INFO L137 encePairwiseOnDemand]: 1217/1222 looper letters, 116 selfloop transitions, 10 changer transitions 0/126 dead transitions. [2022-11-25 17:07:04,447 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 75 places, 126 transitions, 818 flow [2022-11-25 17:07:04,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 17:07:04,451 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-25 17:07:04,455 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1340 transitions. [2022-11-25 17:07:04,456 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.36552100381887614 [2022-11-25 17:07:04,456 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1340 transitions. [2022-11-25 17:07:04,456 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1340 transitions. [2022-11-25 17:07:04,457 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 17:07:04,457 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1340 transitions. [2022-11-25 17:07:04,460 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 446.6666666666667) internal successors, (1340), 3 states have internal predecessors, (1340), 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 17:07:04,465 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1222.0) internal successors, (4888), 4 states have internal predecessors, (4888), 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 17:07:04,467 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1222.0) internal successors, (4888), 4 states have internal predecessors, (4888), 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 17:07:04,467 INFO L175 Difference]: Start difference. First operand has 73 places, 127 transitions, 570 flow. Second operand 3 states and 1340 transitions. [2022-11-25 17:07:04,467 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 75 places, 126 transitions, 818 flow [2022-11-25 17:07:04,470 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 74 places, 126 transitions, 811 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-25 17:07:04,473 INFO L231 Difference]: Finished difference. Result has 75 places, 126 transitions, 591 flow [2022-11-25 17:07:04,473 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=1222, PETRI_DIFFERENCE_MINUEND_FLOW=559, PETRI_DIFFERENCE_MINUEND_PLACES=72, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=126, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=116, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=591, PETRI_PLACES=75, PETRI_TRANSITIONS=126} [2022-11-25 17:07:04,475 INFO L288 CegarLoopForPetriNet]: 99 programPoint places, -24 predicate places. [2022-11-25 17:07:04,476 INFO L495 AbstractCegarLoop]: Abstraction has has 75 places, 126 transitions, 591 flow [2022-11-25 17:07:04,476 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 426.6666666666667) internal successors, (1280), 3 states have internal predecessors, (1280), 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 17:07:04,476 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 17:07:04,477 INFO L209 CegarLoopForPetriNet]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:07:04,477 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-25 17:07:04,477 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (and 121 more)] === [2022-11-25 17:07:04,477 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:07:04,477 INFO L85 PathProgramCache]: Analyzing trace with hash 1583973120, now seen corresponding path program 1 times [2022-11-25 17:07:04,478 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:07:04,478 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [795871326] [2022-11-25 17:07:04,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:07:04,478 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:07:04,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:07:04,664 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-11-25 17:07:04,664 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:07:04,665 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [795871326] [2022-11-25 17:07:04,665 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [795871326] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 17:07:04,670 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1065857628] [2022-11-25 17:07:04,670 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:07:04,670 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 17:07:04,670 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3201fb06-b088-479a-9661-ce13a33e9ada/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:07:04,671 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3201fb06-b088-479a-9661-ce13a33e9ada/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 17:07:04,689 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3201fb06-b088-479a-9661-ce13a33e9ada/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-25 17:07:05,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:07:05,820 INFO L263 TraceCheckSpWp]: Trace formula consists of 401 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-25 17:07:05,821 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 17:07:05,849 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-11-25 17:07:05,849 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 17:07:05,870 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-11-25 17:07:05,871 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1065857628] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 17:07:05,871 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-25 17:07:05,871 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 3, 3] total 8 [2022-11-25 17:07:05,871 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [934615540] [2022-11-25 17:07:05,871 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-25 17:07:05,872 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-25 17:07:05,872 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:07:05,872 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-25 17:07:05,872 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2022-11-25 17:07:06,310 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 405 out of 1222 [2022-11-25 17:07:06,312 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 75 places, 126 transitions, 591 flow. Second operand has 8 states, 8 states have (on average 408.375) internal successors, (3267), 8 states have internal predecessors, (3267), 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 17:07:06,312 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 17:07:06,313 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 405 of 1222 [2022-11-25 17:07:06,313 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 17:07:08,514 INFO L130 PetriNetUnfolder]: 1680/2689 cut-off events. [2022-11-25 17:07:08,514 INFO L131 PetriNetUnfolder]: For 34/34 co-relation queries the response was YES. [2022-11-25 17:07:08,517 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5519 conditions, 2689 events. 1680/2689 cut-off events. For 34/34 co-relation queries the response was YES. Maximal size of possible extension queue 350. Compared 15190 event pairs, 1320 based on Foata normal form. 24/860 useless extension candidates. Maximal degree in co-relation 5505. Up to 2656 conditions per place. [2022-11-25 17:07:08,522 INFO L137 encePairwiseOnDemand]: 1203/1222 looper letters, 63 selfloop transitions, 42 changer transitions 0/105 dead transitions. [2022-11-25 17:07:08,522 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 82 places, 105 transitions, 642 flow [2022-11-25 17:07:08,523 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-25 17:07:08,523 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2022-11-25 17:07:08,530 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 3369 transitions. [2022-11-25 17:07:08,532 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.34461947626841244 [2022-11-25 17:07:08,532 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 3369 transitions. [2022-11-25 17:07:08,533 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 3369 transitions. [2022-11-25 17:07:08,535 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 17:07:08,535 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 3369 transitions. [2022-11-25 17:07:08,542 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 421.125) internal successors, (3369), 8 states have internal predecessors, (3369), 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 17:07:08,555 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 1222.0) internal successors, (10998), 9 states have internal predecessors, (10998), 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 17:07:08,559 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 1222.0) internal successors, (10998), 9 states have internal predecessors, (10998), 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 17:07:08,559 INFO L175 Difference]: Start difference. First operand has 75 places, 126 transitions, 591 flow. Second operand 8 states and 3369 transitions. [2022-11-25 17:07:08,560 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 82 places, 105 transitions, 642 flow [2022-11-25 17:07:08,561 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 80 places, 105 transitions, 622 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-25 17:07:08,563 INFO L231 Difference]: Finished difference. Result has 83 places, 105 transitions, 544 flow [2022-11-25 17:07:08,564 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=1222, PETRI_DIFFERENCE_MINUEND_FLOW=412, PETRI_DIFFERENCE_MINUEND_PLACES=73, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=105, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=42, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=63, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=544, PETRI_PLACES=83, PETRI_TRANSITIONS=105} [2022-11-25 17:07:08,564 INFO L288 CegarLoopForPetriNet]: 99 programPoint places, -16 predicate places. [2022-11-25 17:07:08,565 INFO L495 AbstractCegarLoop]: Abstraction has has 83 places, 105 transitions, 544 flow [2022-11-25 17:07:08,566 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 408.375) internal successors, (3267), 8 states have internal predecessors, (3267), 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 17:07:08,566 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 17:07:08,566 INFO L209 CegarLoopForPetriNet]: trace histogram [4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:07:08,580 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3201fb06-b088-479a-9661-ce13a33e9ada/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-11-25 17:07:08,780 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3201fb06-b088-479a-9661-ce13a33e9ada/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 17:07:08,781 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (and 121 more)] === [2022-11-25 17:07:08,781 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:07:08,781 INFO L85 PathProgramCache]: Analyzing trace with hash -481186353, now seen corresponding path program 2 times [2022-11-25 17:07:08,781 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:07:08,781 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1295621853] [2022-11-25 17:07:08,781 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:07:08,782 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:07:08,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:07:09,122 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2022-11-25 17:07:09,122 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:07:09,122 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1295621853] [2022-11-25 17:07:09,122 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1295621853] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 17:07:09,123 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1412049136] [2022-11-25 17:07:09,123 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-25 17:07:09,123 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 17:07:09,123 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3201fb06-b088-479a-9661-ce13a33e9ada/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:07:09,128 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3201fb06-b088-479a-9661-ce13a33e9ada/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 17:07:09,147 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3201fb06-b088-479a-9661-ce13a33e9ada/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-25 17:07:10,150 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-11-25 17:07:10,150 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-25 17:07:10,152 INFO L263 TraceCheckSpWp]: Trace formula consists of 291 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-25 17:07:10,154 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 17:07:10,174 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2022-11-25 17:07:10,174 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 17:07:10,174 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1412049136] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:07:10,174 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-25 17:07:10,174 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [6] total 8 [2022-11-25 17:07:10,175 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1770874839] [2022-11-25 17:07:10,175 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:07:10,175 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 17:07:10,175 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:07:10,176 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 17:07:10,176 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2022-11-25 17:07:10,287 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 437 out of 1222 [2022-11-25 17:07:10,288 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 83 places, 105 transitions, 544 flow. Second operand has 3 states, 3 states have (on average 442.0) internal successors, (1326), 3 states have internal predecessors, (1326), 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 17:07:10,288 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 17:07:10,288 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 437 of 1222 [2022-11-25 17:07:10,288 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 17:07:12,607 INFO L130 PetriNetUnfolder]: 1680/2687 cut-off events. [2022-11-25 17:07:12,607 INFO L131 PetriNetUnfolder]: For 40/40 co-relation queries the response was YES. [2022-11-25 17:07:12,611 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5563 conditions, 2687 events. 1680/2687 cut-off events. For 40/40 co-relation queries the response was YES. Maximal size of possible extension queue 352. Compared 15203 event pairs, 1320 based on Foata normal form. 2/841 useless extension candidates. Maximal degree in co-relation 5546. Up to 2687 conditions per place. [2022-11-25 17:07:12,618 INFO L137 encePairwiseOnDemand]: 1219/1222 looper letters, 102 selfloop transitions, 1 changer transitions 0/103 dead transitions. [2022-11-25 17:07:12,618 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 83 places, 103 transitions, 724 flow [2022-11-25 17:07:12,619 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 17:07:12,619 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-25 17:07:12,622 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1384 transitions. [2022-11-25 17:07:12,623 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.37752318603382434 [2022-11-25 17:07:12,623 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1384 transitions. [2022-11-25 17:07:12,623 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1384 transitions. [2022-11-25 17:07:12,624 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 17:07:12,624 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1384 transitions. [2022-11-25 17:07:12,627 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 461.3333333333333) internal successors, (1384), 3 states have internal predecessors, (1384), 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 17:07:12,632 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1222.0) internal successors, (4888), 4 states have internal predecessors, (4888), 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 17:07:12,634 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1222.0) internal successors, (4888), 4 states have internal predecessors, (4888), 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 17:07:12,634 INFO L175 Difference]: Start difference. First operand has 83 places, 105 transitions, 544 flow. Second operand 3 states and 1384 transitions. [2022-11-25 17:07:12,634 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 83 places, 103 transitions, 724 flow [2022-11-25 17:07:12,636 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 73 places, 103 transitions, 564 flow, removed 8 selfloop flow, removed 10 redundant places. [2022-11-25 17:07:12,638 INFO L231 Difference]: Finished difference. Result has 73 places, 103 transitions, 360 flow [2022-11-25 17:07:12,638 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=1222, PETRI_DIFFERENCE_MINUEND_FLOW=358, PETRI_DIFFERENCE_MINUEND_PLACES=71, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=103, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=102, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=360, PETRI_PLACES=73, PETRI_TRANSITIONS=103} [2022-11-25 17:07:12,638 INFO L288 CegarLoopForPetriNet]: 99 programPoint places, -26 predicate places. [2022-11-25 17:07:12,639 INFO L495 AbstractCegarLoop]: Abstraction has has 73 places, 103 transitions, 360 flow [2022-11-25 17:07:12,639 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 442.0) internal successors, (1326), 3 states have internal predecessors, (1326), 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 17:07:12,639 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 17:07:12,640 INFO L209 CegarLoopForPetriNet]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:07:12,652 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3201fb06-b088-479a-9661-ce13a33e9ada/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2022-11-25 17:07:12,848 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3201fb06-b088-479a-9661-ce13a33e9ada/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 17:07:12,848 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (and 121 more)] === [2022-11-25 17:07:12,848 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:07:12,848 INFO L85 PathProgramCache]: Analyzing trace with hash -8395453, now seen corresponding path program 1 times [2022-11-25 17:07:12,848 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:07:12,848 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1396102378] [2022-11-25 17:07:12,849 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:07:12,849 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:07:12,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:07:13,209 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2022-11-25 17:07:13,209 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:07:13,210 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1396102378] [2022-11-25 17:07:13,210 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1396102378] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 17:07:13,210 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [669140398] [2022-11-25 17:07:13,210 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:07:13,210 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 17:07:13,210 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3201fb06-b088-479a-9661-ce13a33e9ada/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:07:13,212 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3201fb06-b088-479a-9661-ce13a33e9ada/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 17:07:13,235 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3201fb06-b088-479a-9661-ce13a33e9ada/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-25 17:07:14,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:07:14,368 INFO L263 TraceCheckSpWp]: Trace formula consists of 707 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-25 17:07:14,370 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 17:07:14,463 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2022-11-25 17:07:14,463 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 17:07:14,548 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2022-11-25 17:07:14,549 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [669140398] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 17:07:14,549 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-25 17:07:14,549 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 16 [2022-11-25 17:07:14,549 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [707226565] [2022-11-25 17:07:14,549 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-25 17:07:14,550 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-11-25 17:07:14,550 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:07:14,550 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-11-25 17:07:14,550 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=106, Invalid=166, Unknown=0, NotChecked=0, Total=272 [2022-11-25 17:07:15,360 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 405 out of 1222 [2022-11-25 17:07:15,367 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 73 places, 103 transitions, 360 flow. Second operand has 17 states, 17 states have (on average 407.0) internal successors, (6919), 17 states have internal predecessors, (6919), 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 17:07:15,367 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 17:07:15,367 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 405 of 1222 [2022-11-25 17:07:15,368 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 17:07:17,741 INFO L130 PetriNetUnfolder]: 1680/2691 cut-off events. [2022-11-25 17:07:17,741 INFO L131 PetriNetUnfolder]: For 18/18 co-relation queries the response was YES. [2022-11-25 17:07:17,744 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5492 conditions, 2691 events. 1680/2691 cut-off events. For 18/18 co-relation queries the response was YES. Maximal size of possible extension queue 350. Compared 15144 event pairs, 1320 based on Foata normal form. 2/840 useless extension candidates. Maximal degree in co-relation 5479. Up to 2656 conditions per place. [2022-11-25 17:07:17,748 INFO L137 encePairwiseOnDemand]: 1205/1222 looper letters, 63 selfloop transitions, 44 changer transitions 0/107 dead transitions. [2022-11-25 17:07:17,748 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 88 places, 107 transitions, 590 flow [2022-11-25 17:07:17,748 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-11-25 17:07:17,749 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2022-11-25 17:07:17,760 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 6591 transitions. [2022-11-25 17:07:17,763 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.3371010638297872 [2022-11-25 17:07:17,763 INFO L72 ComplementDD]: Start complementDD. Operand 16 states and 6591 transitions. [2022-11-25 17:07:17,763 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 6591 transitions. [2022-11-25 17:07:17,766 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 17:07:17,767 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 16 states and 6591 transitions. [2022-11-25 17:07:17,778 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 17 states, 16 states have (on average 411.9375) internal successors, (6591), 16 states have internal predecessors, (6591), 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 17:07:17,799 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 17 states, 17 states have (on average 1222.0) internal successors, (20774), 17 states have internal predecessors, (20774), 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 17:07:17,805 INFO L81 ComplementDD]: Finished complementDD. Result has 17 states, 17 states have (on average 1222.0) internal successors, (20774), 17 states have internal predecessors, (20774), 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 17:07:17,805 INFO L175 Difference]: Start difference. First operand has 73 places, 103 transitions, 360 flow. Second operand 16 states and 6591 transitions. [2022-11-25 17:07:17,805 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 88 places, 107 transitions, 590 flow [2022-11-25 17:07:17,807 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 87 places, 107 transitions, 589 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-25 17:07:17,808 INFO L231 Difference]: Finished difference. Result has 89 places, 107 transitions, 481 flow [2022-11-25 17:07:17,809 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=1222, PETRI_DIFFERENCE_MINUEND_FLOW=359, PETRI_DIFFERENCE_MINUEND_PLACES=72, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=103, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=40, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=59, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=481, PETRI_PLACES=89, PETRI_TRANSITIONS=107} [2022-11-25 17:07:17,809 INFO L288 CegarLoopForPetriNet]: 99 programPoint places, -10 predicate places. [2022-11-25 17:07:17,810 INFO L495 AbstractCegarLoop]: Abstraction has has 89 places, 107 transitions, 481 flow [2022-11-25 17:07:17,811 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 407.0) internal successors, (6919), 17 states have internal predecessors, (6919), 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 17:07:17,812 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 17:07:17,812 INFO L209 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:07:17,826 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3201fb06-b088-479a-9661-ce13a33e9ada/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-11-25 17:07:18,026 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3201fb06-b088-479a-9661-ce13a33e9ada/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-11-25 17:07:18,026 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (and 121 more)] === [2022-11-25 17:07:18,027 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:07:18,027 INFO L85 PathProgramCache]: Analyzing trace with hash 466008457, now seen corresponding path program 2 times [2022-11-25 17:07:18,027 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:07:18,027 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [735546814] [2022-11-25 17:07:18,027 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:07:18,027 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:07:18,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:07:18,498 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 85 trivial. 0 not checked. [2022-11-25 17:07:18,499 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:07:18,499 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [735546814] [2022-11-25 17:07:18,499 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [735546814] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 17:07:18,499 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1687119777] [2022-11-25 17:07:18,499 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-25 17:07:18,499 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 17:07:18,500 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3201fb06-b088-479a-9661-ce13a33e9ada/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:07:18,500 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3201fb06-b088-479a-9661-ce13a33e9ada/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 17:07:18,503 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3201fb06-b088-479a-9661-ce13a33e9ada/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-11-25 17:07:19,690 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-25 17:07:19,690 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-25 17:07:19,694 INFO L263 TraceCheckSpWp]: Trace formula consists of 751 conjuncts, 9 conjunts are in the unsatisfiable core [2022-11-25 17:07:19,697 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 17:07:19,813 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 85 trivial. 0 not checked. [2022-11-25 17:07:19,814 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 17:07:19,943 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 85 trivial. 0 not checked. [2022-11-25 17:07:19,944 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1687119777] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 17:07:19,944 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-25 17:07:19,944 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 20 [2022-11-25 17:07:19,944 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2038021506] [2022-11-25 17:07:19,944 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-25 17:07:19,945 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2022-11-25 17:07:19,945 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:07:19,945 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-11-25 17:07:19,945 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=175, Invalid=205, Unknown=0, NotChecked=0, Total=380 [2022-11-25 17:07:20,969 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 405 out of 1222 [2022-11-25 17:07:20,974 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 89 places, 107 transitions, 481 flow. Second operand has 20 states, 20 states have (on average 406.85) internal successors, (8137), 20 states have internal predecessors, (8137), 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 17:07:20,974 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 17:07:20,974 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 405 of 1222 [2022-11-25 17:07:20,974 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 17:07:23,649 INFO L130 PetriNetUnfolder]: 1680/2705 cut-off events. [2022-11-25 17:07:23,650 INFO L131 PetriNetUnfolder]: For 64/64 co-relation queries the response was YES. [2022-11-25 17:07:23,652 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5603 conditions, 2705 events. 1680/2705 cut-off events. For 64/64 co-relation queries the response was YES. Maximal size of possible extension queue 371. Compared 15277 event pairs, 1320 based on Foata normal form. 14/871 useless extension candidates. Maximal degree in co-relation 5587. Up to 2656 conditions per place. [2022-11-25 17:07:23,657 INFO L137 encePairwiseOnDemand]: 1205/1222 looper letters, 63 selfloop transitions, 58 changer transitions 0/121 dead transitions. [2022-11-25 17:07:23,657 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 102 places, 121 transitions, 807 flow [2022-11-25 17:07:23,657 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-25 17:07:23,657 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2022-11-25 17:07:23,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 5805 transitions. [2022-11-25 17:07:23,671 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.3393149403787702 [2022-11-25 17:07:23,671 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 5805 transitions. [2022-11-25 17:07:23,671 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 5805 transitions. [2022-11-25 17:07:23,674 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 17:07:23,674 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 5805 transitions. [2022-11-25 17:07:23,685 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 414.64285714285717) internal successors, (5805), 14 states have internal predecessors, (5805), 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 17:07:23,703 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 1222.0) internal successors, (18330), 15 states have internal predecessors, (18330), 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 17:07:23,706 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 1222.0) internal successors, (18330), 15 states have internal predecessors, (18330), 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 17:07:23,707 INFO L175 Difference]: Start difference. First operand has 89 places, 107 transitions, 481 flow. Second operand 14 states and 5805 transitions. [2022-11-25 17:07:23,707 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 102 places, 121 transitions, 807 flow [2022-11-25 17:07:23,709 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 95 places, 121 transitions, 735 flow, removed 4 selfloop flow, removed 7 redundant places. [2022-11-25 17:07:23,711 INFO L231 Difference]: Finished difference. Result has 102 places, 121 transitions, 707 flow [2022-11-25 17:07:23,712 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=1222, PETRI_DIFFERENCE_MINUEND_FLOW=409, PETRI_DIFFERENCE_MINUEND_PLACES=82, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=107, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=46, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=61, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=707, PETRI_PLACES=102, PETRI_TRANSITIONS=121} [2022-11-25 17:07:23,712 INFO L288 CegarLoopForPetriNet]: 99 programPoint places, 3 predicate places. [2022-11-25 17:07:23,713 INFO L495 AbstractCegarLoop]: Abstraction has has 102 places, 121 transitions, 707 flow [2022-11-25 17:07:23,715 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 406.85) internal successors, (8137), 20 states have internal predecessors, (8137), 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 17:07:23,715 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 17:07:23,715 INFO L209 CegarLoopForPetriNet]: trace histogram [12, 12, 5, 5, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:07:23,727 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3201fb06-b088-479a-9661-ce13a33e9ada/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-11-25 17:07:23,927 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3201fb06-b088-479a-9661-ce13a33e9ada/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 17:07:23,928 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting thread1Err10ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (and 121 more)] === [2022-11-25 17:07:23,928 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:07:23,928 INFO L85 PathProgramCache]: Analyzing trace with hash -1505027663, now seen corresponding path program 1 times [2022-11-25 17:07:23,928 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:07:23,929 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [366038553] [2022-11-25 17:07:23,929 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:07:23,929 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:07:24,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:07:24,702 INFO L134 CoverageAnalysis]: Checked inductivity of 226 backedges. 0 proven. 78 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2022-11-25 17:07:24,702 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:07:24,702 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [366038553] [2022-11-25 17:07:24,702 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [366038553] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 17:07:24,702 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [439250599] [2022-11-25 17:07:24,702 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:07:24,703 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 17:07:24,703 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3201fb06-b088-479a-9661-ce13a33e9ada/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:07:24,705 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3201fb06-b088-479a-9661-ce13a33e9ada/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 17:07:24,731 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3201fb06-b088-479a-9661-ce13a33e9ada/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-11-25 17:07:25,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:07:25,885 INFO L263 TraceCheckSpWp]: Trace formula consists of 906 conjuncts, 16 conjunts are in the unsatisfiable core [2022-11-25 17:07:25,888 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 17:07:26,250 INFO L134 CoverageAnalysis]: Checked inductivity of 226 backedges. 0 proven. 78 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2022-11-25 17:07:26,250 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 17:07:26,652 INFO L134 CoverageAnalysis]: Checked inductivity of 226 backedges. 0 proven. 78 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2022-11-25 17:07:26,652 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [439250599] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 17:07:26,652 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-25 17:07:26,652 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 15, 15] total 41 [2022-11-25 17:07:26,653 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [898898442] [2022-11-25 17:07:26,653 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-25 17:07:26,653 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 41 states [2022-11-25 17:07:26,653 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:07:26,654 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 41 interpolants. [2022-11-25 17:07:26,655 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=586, Invalid=1054, Unknown=0, NotChecked=0, Total=1640 [2022-11-25 17:07:28,567 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 405 out of 1222 [2022-11-25 17:07:28,575 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 102 places, 121 transitions, 707 flow. Second operand has 41 states, 41 states have (on average 406.4146341463415) internal successors, (16663), 41 states have internal predecessors, (16663), 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 17:07:28,576 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 17:07:28,576 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 405 of 1222 [2022-11-25 17:07:28,576 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 17:07:30,976 INFO L130 PetriNetUnfolder]: 1680/2707 cut-off events. [2022-11-25 17:07:30,976 INFO L131 PetriNetUnfolder]: For 131/131 co-relation queries the response was YES. [2022-11-25 17:07:30,981 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5692 conditions, 2707 events. 1680/2707 cut-off events. For 131/131 co-relation queries the response was YES. Maximal size of possible extension queue 371. Compared 15270 event pairs, 1320 based on Foata normal form. 2/861 useless extension candidates. Maximal degree in co-relation 5668. Up to 2656 conditions per place. [2022-11-25 17:07:30,986 INFO L137 encePairwiseOnDemand]: 1205/1222 looper letters, 63 selfloop transitions, 60 changer transitions 0/123 dead transitions. [2022-11-25 17:07:30,986 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 121 places, 123 transitions, 969 flow [2022-11-25 17:07:30,986 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-11-25 17:07:30,986 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2022-11-25 17:07:30,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 8225 transitions. [2022-11-25 17:07:30,997 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.33653846153846156 [2022-11-25 17:07:30,997 INFO L72 ComplementDD]: Start complementDD. Operand 20 states and 8225 transitions. [2022-11-25 17:07:30,997 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 8225 transitions. [2022-11-25 17:07:31,000 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 17:07:31,000 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 20 states and 8225 transitions. [2022-11-25 17:07:31,012 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 21 states, 20 states have (on average 411.25) internal successors, (8225), 20 states have internal predecessors, (8225), 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 17:07:31,031 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 21 states, 21 states have (on average 1222.0) internal successors, (25662), 21 states have internal predecessors, (25662), 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 17:07:31,035 INFO L81 ComplementDD]: Finished complementDD. Result has 21 states, 21 states have (on average 1222.0) internal successors, (25662), 21 states have internal predecessors, (25662), 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 17:07:31,035 INFO L175 Difference]: Start difference. First operand has 102 places, 121 transitions, 707 flow. Second operand 20 states and 8225 transitions. [2022-11-25 17:07:31,036 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 121 places, 123 transitions, 969 flow [2022-11-25 17:07:31,040 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 115 places, 123 transitions, 897 flow, removed 18 selfloop flow, removed 6 redundant places. [2022-11-25 17:07:31,042 INFO L231 Difference]: Finished difference. Result has 116 places, 123 transitions, 781 flow [2022-11-25 17:07:31,043 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=1222, PETRI_DIFFERENCE_MINUEND_FLOW=635, PETRI_DIFFERENCE_MINUEND_PLACES=96, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=121, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=58, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=61, PETRI_DIFFERENCE_SUBTRAHEND_STATES=20, PETRI_FLOW=781, PETRI_PLACES=116, PETRI_TRANSITIONS=123} [2022-11-25 17:07:31,045 INFO L288 CegarLoopForPetriNet]: 99 programPoint places, 17 predicate places. [2022-11-25 17:07:31,046 INFO L495 AbstractCegarLoop]: Abstraction has has 116 places, 123 transitions, 781 flow [2022-11-25 17:07:31,048 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 41 states, 41 states have (on average 406.4146341463415) internal successors, (16663), 41 states have internal predecessors, (16663), 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 17:07:31,048 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 17:07:31,048 INFO L209 CegarLoopForPetriNet]: trace histogram [13, 13, 5, 5, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:07:31,064 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3201fb06-b088-479a-9661-ce13a33e9ada/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-11-25 17:07:31,259 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3201fb06-b088-479a-9661-ce13a33e9ada/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 17:07:31,260 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting thread1Err10ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (and 121 more)] === [2022-11-25 17:07:31,260 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:07:31,260 INFO L85 PathProgramCache]: Analyzing trace with hash 577850890, now seen corresponding path program 2 times [2022-11-25 17:07:31,260 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:07:31,260 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [551986122] [2022-11-25 17:07:31,260 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:07:31,260 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:07:31,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:07:36,323 INFO L134 CoverageAnalysis]: Checked inductivity of 252 backedges. 0 proven. 72 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2022-11-25 17:07:36,323 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:07:36,323 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [551986122] [2022-11-25 17:07:36,323 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [551986122] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 17:07:36,324 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [513460136] [2022-11-25 17:07:36,324 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-25 17:07:36,324 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 17:07:36,324 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3201fb06-b088-479a-9661-ce13a33e9ada/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:07:36,325 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3201fb06-b088-479a-9661-ce13a33e9ada/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 17:07:36,343 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3201fb06-b088-479a-9661-ce13a33e9ada/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-11-25 17:07:37,933 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-25 17:07:37,933 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-25 17:07:37,940 INFO L263 TraceCheckSpWp]: Trace formula consists of 928 conjuncts, 108 conjunts are in the unsatisfiable core [2022-11-25 17:07:37,956 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 17:07:38,146 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-25 17:07:38,393 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-25 17:07:38,477 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-25 17:07:38,477 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2022-11-25 17:07:38,554 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 20 [2022-11-25 17:07:38,588 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 20 [2022-11-25 17:07:38,613 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 20 [2022-11-25 17:07:38,629 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 20 [2022-11-25 17:07:38,725 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-25 17:07:38,725 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2022-11-25 17:07:38,802 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 20 [2022-11-25 17:07:38,844 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 20 [2022-11-25 17:07:38,860 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 20 [2022-11-25 17:07:38,892 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 20 [2022-11-25 17:07:39,027 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-11-25 17:07:39,027 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 22 treesize of output 33 [2022-11-25 17:07:39,133 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 20 [2022-11-25 17:07:39,175 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 20 [2022-11-25 17:07:39,223 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 20 [2022-11-25 17:07:39,254 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 20 [2022-11-25 17:07:39,402 INFO L321 Elim1Store]: treesize reduction 54, result has 34.1 percent of original size [2022-11-25 17:07:39,402 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 27 treesize of output 45 [2022-11-25 17:07:39,567 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 20 [2022-11-25 17:07:39,595 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 20 [2022-11-25 17:07:39,681 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 20 [2022-11-25 17:07:39,714 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 20 [2022-11-25 17:07:39,921 INFO L321 Elim1Store]: treesize reduction 72, result has 33.9 percent of original size [2022-11-25 17:07:39,921 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 32 treesize of output 57 [2022-11-25 17:07:40,153 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 20 [2022-11-25 17:07:40,223 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 20 [2022-11-25 17:07:40,298 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 20 [2022-11-25 17:07:40,383 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 20 [2022-11-25 17:07:40,469 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 20 [2022-11-25 17:07:40,578 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 20 [2022-11-25 17:07:40,663 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 20 [2022-11-25 17:07:40,721 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 20 [2022-11-25 17:07:40,829 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 20 [2022-11-25 17:07:40,995 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 20 [2022-11-25 17:07:41,088 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 20 [2022-11-25 17:07:41,190 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 20 [2022-11-25 17:07:41,234 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 7 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 20 [2022-11-25 17:07:41,425 INFO L321 Elim1Store]: treesize reduction 16, result has 51.5 percent of original size [2022-11-25 17:07:41,426 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 26 treesize of output 32 [2022-11-25 17:07:41,506 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 20 [2022-11-25 17:07:41,523 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 20 [2022-11-25 17:07:41,545 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 20 [2022-11-25 17:07:41,567 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 20 [2022-11-25 17:07:41,590 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 20 [2022-11-25 17:07:41,615 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 20 [2022-11-25 17:07:41,643 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 20 [2022-11-25 17:07:41,670 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 20 [2022-11-25 17:07:41,697 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 20 [2022-11-25 17:07:41,716 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 20 [2022-11-25 17:07:41,746 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 20 [2022-11-25 17:07:41,772 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 20 [2022-11-25 17:07:41,793 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 20 [2022-11-25 17:07:41,864 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 17:07:41,865 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 20 [2022-11-25 17:07:41,877 INFO L134 CoverageAnalysis]: Checked inductivity of 252 backedges. 0 proven. 71 refuted. 0 times theorem prover too weak. 181 trivial. 0 not checked. [2022-11-25 17:07:41,878 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 17:07:41,939 WARN L837 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1360 (Array Int Int))) (< 0 (+ (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t1~0#1.base| v_ArrVal_1360) c_~index_of_4~0.base) (+ c_~index_of_4~0.offset 16)) 4294967296))) is different from false [2022-11-25 17:07:41,951 WARN L837 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1359 (Array Int Int)) (v_ArrVal_1360 (Array Int Int))) (< 0 (+ (select (select (store (store |c_#memory_int| |c_ULTIMATE.start_create_fresh_int_array_~arr~0#1.base| v_ArrVal_1359) |c_ULTIMATE.start_main_~#t1~0#1.base| v_ArrVal_1360) c_~index_of_4~0.base) (+ c_~index_of_4~0.offset 16)) 4294967296))) is different from false [2022-11-25 17:07:44,713 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-25 17:07:44,713 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 41 treesize of output 42 [2022-11-25 17:07:44,796 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-25 17:07:44,798 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 623619 treesize of output 620549 [2022-11-25 17:07:47,713 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 620534 treesize of output 604150 [2022-11-25 17:07:50,099 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 604150 treesize of output 602102 [2022-11-25 17:07:52,757 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 602102 treesize of output 536566 [2022-11-25 17:07:55,623 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 536566 treesize of output 503798 [2022-11-25 17:07:58,814 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 253947 treesize of output 249851 [2022-11-25 17:08:01,481 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 499702 treesize of output 491510 [2022-11-25 17:08:32,070 WARN L233 SmtUtils]: Spent 5.07s on a formula simplification. DAG size of input: 766 DAG size of output: 766 (called from [L 800] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify)