./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/weaver/popl20-more-buffer-series2.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability 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_fe7705b0-4c45-4ba9-9b6b-f3f4f47b84eb/bin/uautomizer-ZsLfNo2U6R/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe7705b0-4c45-4ba9-9b6b-f3f4f47b84eb/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_fe7705b0-4c45-4ba9-9b6b-f3f4f47b84eb/bin/uautomizer-ZsLfNo2U6R/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe7705b0-4c45-4ba9-9b6b-f3f4f47b84eb/bin/uautomizer-ZsLfNo2U6R/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/popl20-more-buffer-series2.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe7705b0-4c45-4ba9-9b6b-f3f4f47b84eb/bin/uautomizer-ZsLfNo2U6R/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe7705b0-4c45-4ba9-9b6b-f3f4f47b84eb/bin/uautomizer-ZsLfNo2U6R --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash f83ae5bec1717d6f197d4259600c0d1f406909832409df09253b7bf70d3f66fc --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-38b53e6 [2022-11-25 18:20:34,499 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-25 18:20:34,501 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-25 18:20:34,530 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-25 18:20:34,531 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-25 18:20:34,535 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-25 18:20:34,541 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-25 18:20:34,545 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-25 18:20:34,547 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-25 18:20:34,554 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-25 18:20:34,555 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-25 18:20:34,556 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-25 18:20:34,557 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-25 18:20:34,558 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-25 18:20:34,562 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-25 18:20:34,564 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-25 18:20:34,566 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-25 18:20:34,568 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-25 18:20:34,570 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-25 18:20:34,579 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-25 18:20:34,581 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-25 18:20:34,582 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-25 18:20:34,583 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-25 18:20:34,585 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-25 18:20:34,591 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-25 18:20:34,591 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-25 18:20:34,592 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-25 18:20:34,594 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-25 18:20:34,594 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-25 18:20:34,595 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-25 18:20:34,596 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-25 18:20:34,597 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-25 18:20:34,599 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-25 18:20:34,601 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-25 18:20:34,602 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-25 18:20:34,602 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-25 18:20:34,603 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-25 18:20:34,604 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-25 18:20:34,604 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-25 18:20:34,606 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-25 18:20:34,606 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-25 18:20:34,607 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe7705b0-4c45-4ba9-9b6b-f3f4f47b84eb/bin/uautomizer-ZsLfNo2U6R/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-11-25 18:20:34,651 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-25 18:20:34,655 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-25 18:20:34,655 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-25 18:20:34,656 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-25 18:20:34,657 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-25 18:20:34,657 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-25 18:20:34,658 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-25 18:20:34,658 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-25 18:20:34,658 INFO L138 SettingsManager]: * Use SBE=true [2022-11-25 18:20:34,659 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-25 18:20:34,660 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-25 18:20:34,660 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-25 18:20:34,660 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-25 18:20:34,661 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-25 18:20:34,661 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-25 18:20:34,661 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-25 18:20:34,661 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-25 18:20:34,662 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-25 18:20:34,662 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-25 18:20:34,662 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-25 18:20:34,662 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-25 18:20:34,663 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-25 18:20:34,663 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-25 18:20:34,663 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-25 18:20:34,663 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 18:20:34,664 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-25 18:20:34,664 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-25 18:20:34,664 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-25 18:20:34,665 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-25 18:20:34,665 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-25 18:20:34,665 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-25 18:20:34,665 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-25 18:20:34,666 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-11-25 18:20:34,666 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-25 18:20:34,666 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_fe7705b0-4c45-4ba9-9b6b-f3f4f47b84eb/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe7705b0-4c45-4ba9-9b6b-f3f4f47b84eb/bin/uautomizer-ZsLfNo2U6R Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f83ae5bec1717d6f197d4259600c0d1f406909832409df09253b7bf70d3f66fc [2022-11-25 18:20:34,933 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-25 18:20:34,962 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-25 18:20:34,965 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-25 18:20:34,966 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-25 18:20:34,967 INFO L275 PluginConnector]: CDTParser initialized [2022-11-25 18:20:34,968 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe7705b0-4c45-4ba9-9b6b-f3f4f47b84eb/bin/uautomizer-ZsLfNo2U6R/../../sv-benchmarks/c/weaver/popl20-more-buffer-series2.wvr.c [2022-11-25 18:20:38,031 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-25 18:20:38,271 INFO L351 CDTParser]: Found 1 translation units. [2022-11-25 18:20:38,271 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe7705b0-4c45-4ba9-9b6b-f3f4f47b84eb/sv-benchmarks/c/weaver/popl20-more-buffer-series2.wvr.c [2022-11-25 18:20:38,282 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe7705b0-4c45-4ba9-9b6b-f3f4f47b84eb/bin/uautomizer-ZsLfNo2U6R/data/2aa5c867f/b266eed80b854fac9c827c92c856507f/FLAG6516ee758 [2022-11-25 18:20:38,302 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe7705b0-4c45-4ba9-9b6b-f3f4f47b84eb/bin/uautomizer-ZsLfNo2U6R/data/2aa5c867f/b266eed80b854fac9c827c92c856507f [2022-11-25 18:20:38,305 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-25 18:20:38,307 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-25 18:20:38,309 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-25 18:20:38,309 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-25 18:20:38,321 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-25 18:20:38,322 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 06:20:38" (1/1) ... [2022-11-25 18:20:38,323 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@547e010d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:20:38, skipping insertion in model container [2022-11-25 18:20:38,323 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 06:20:38" (1/1) ... [2022-11-25 18:20:38,331 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-25 18:20:38,367 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-25 18:20:38,519 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 18:20:38,521 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 18:20:38,521 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 18:20:38,525 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 18:20:38,526 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 18:20:38,526 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 18:20:38,529 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 18:20:38,530 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 18:20:38,531 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 18:20:38,533 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 18:20:38,533 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 18:20:38,534 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 18:20:38,535 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 18:20:38,536 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 18:20:38,536 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 18:20:38,538 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 18:20:38,538 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 18:20:38,539 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 18:20:38,540 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 18:20:38,541 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 18:20:38,541 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 18:20:38,542 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 18:20:38,543 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 18:20:38,543 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 18:20:38,553 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_fe7705b0-4c45-4ba9-9b6b-f3f4f47b84eb/sv-benchmarks/c/weaver/popl20-more-buffer-series2.wvr.c[4232,4245] [2022-11-25 18:20:38,563 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 18:20:38,573 INFO L203 MainTranslator]: Completed pre-run [2022-11-25 18:20:38,589 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 18:20:38,590 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 18:20:38,590 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 18:20:38,592 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 18:20:38,592 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 18:20:38,592 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 18:20:38,593 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 18:20:38,594 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 18:20:38,594 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 18:20:38,596 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 18:20:38,597 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 18:20:38,597 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 18:20:38,598 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 18:20:38,599 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 18:20:38,599 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 18:20:38,600 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 18:20:38,601 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 18:20:38,601 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 18:20:38,602 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 18:20:38,603 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 18:20:38,603 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 18:20:38,605 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 18:20:38,605 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 18:20:38,606 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 18:20:38,613 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_fe7705b0-4c45-4ba9-9b6b-f3f4f47b84eb/sv-benchmarks/c/weaver/popl20-more-buffer-series2.wvr.c[4232,4245] [2022-11-25 18:20:38,617 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 18:20:38,633 INFO L208 MainTranslator]: Completed translation [2022-11-25 18:20:38,634 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:20:38 WrapperNode [2022-11-25 18:20:38,634 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-25 18:20:38,635 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-25 18:20:38,635 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-25 18:20:38,636 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-25 18:20:38,644 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:20:38" (1/1) ... [2022-11-25 18:20:38,668 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:20:38" (1/1) ... [2022-11-25 18:20:38,714 INFO L138 Inliner]: procedures = 27, calls = 83, calls flagged for inlining = 22, calls inlined = 28, statements flattened = 346 [2022-11-25 18:20:38,715 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-25 18:20:38,715 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-25 18:20:38,715 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-25 18:20:38,715 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-25 18:20:38,728 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:20:38" (1/1) ... [2022-11-25 18:20:38,728 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:20:38" (1/1) ... [2022-11-25 18:20:38,733 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:20:38" (1/1) ... [2022-11-25 18:20:38,733 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:20:38" (1/1) ... [2022-11-25 18:20:38,744 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:20:38" (1/1) ... [2022-11-25 18:20:38,750 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:20:38" (1/1) ... [2022-11-25 18:20:38,754 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:20:38" (1/1) ... [2022-11-25 18:20:38,756 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:20:38" (1/1) ... [2022-11-25 18:20:38,760 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-25 18:20:38,761 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-25 18:20:38,761 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-25 18:20:38,761 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-25 18:20:38,762 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:20:38" (1/1) ... [2022-11-25 18:20:38,778 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 18:20:38,790 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe7705b0-4c45-4ba9-9b6b-f3f4f47b84eb/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 18:20:38,801 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe7705b0-4c45-4ba9-9b6b-f3f4f47b84eb/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-25 18:20:38,810 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe7705b0-4c45-4ba9-9b6b-f3f4f47b84eb/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-25 18:20:38,838 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-25 18:20:38,839 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-25 18:20:38,839 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-25 18:20:38,839 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-25 18:20:38,839 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-11-25 18:20:38,839 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-11-25 18:20:38,839 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-11-25 18:20:38,840 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-11-25 18:20:38,840 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-11-25 18:20:38,840 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-11-25 18:20:38,840 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2022-11-25 18:20:38,840 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2022-11-25 18:20:38,840 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-25 18:20:38,840 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-11-25 18:20:38,840 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-11-25 18:20:38,841 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-25 18:20:38,841 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-25 18:20:38,841 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-25 18:20:38,841 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-25 18:20:38,843 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-25 18:20:39,030 INFO L235 CfgBuilder]: Building ICFG [2022-11-25 18:20:39,032 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-25 18:20:39,649 INFO L276 CfgBuilder]: Performing block encoding [2022-11-25 18:20:39,953 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-25 18:20:39,953 INFO L300 CfgBuilder]: Removed 7 assume(true) statements. [2022-11-25 18:20:39,956 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 06:20:39 BoogieIcfgContainer [2022-11-25 18:20:39,956 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-25 18:20:39,960 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-25 18:20:39,960 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-25 18:20:39,964 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-25 18:20:39,964 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 06:20:38" (1/3) ... [2022-11-25 18:20:39,965 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7f1da5ee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 06:20:39, skipping insertion in model container [2022-11-25 18:20:39,966 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:20:38" (2/3) ... [2022-11-25 18:20:39,966 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7f1da5ee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 06:20:39, skipping insertion in model container [2022-11-25 18:20:39,966 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 06:20:39" (3/3) ... [2022-11-25 18:20:39,968 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-more-buffer-series2.wvr.c [2022-11-25 18:20:39,978 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-25 18:20:39,987 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-25 18:20:39,987 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-25 18:20:39,987 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-25 18:20:40,061 INFO L144 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2022-11-25 18:20:40,103 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 256 places, 265 transitions, 562 flow [2022-11-25 18:20:40,199 INFO L130 PetriNetUnfolder]: 22/261 cut-off events. [2022-11-25 18:20:40,199 INFO L131 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2022-11-25 18:20:40,206 INFO L83 FinitePrefix]: Finished finitePrefix Result has 278 conditions, 261 events. 22/261 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 124 event pairs, 0 based on Foata normal form. 0/238 useless extension candidates. Maximal degree in co-relation 222. Up to 2 conditions per place. [2022-11-25 18:20:40,206 INFO L82 GeneralOperation]: Start removeDead. Operand has 256 places, 265 transitions, 562 flow [2022-11-25 18:20:40,212 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 239 places, 248 transitions, 520 flow [2022-11-25 18:20:40,216 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-25 18:20:40,231 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 239 places, 248 transitions, 520 flow [2022-11-25 18:20:40,234 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 239 places, 248 transitions, 520 flow [2022-11-25 18:20:40,235 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 239 places, 248 transitions, 520 flow [2022-11-25 18:20:40,316 INFO L130 PetriNetUnfolder]: 22/248 cut-off events. [2022-11-25 18:20:40,316 INFO L131 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2022-11-25 18:20:40,319 INFO L83 FinitePrefix]: Finished finitePrefix Result has 265 conditions, 248 events. 22/248 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 124 event pairs, 0 based on Foata normal form. 0/226 useless extension candidates. Maximal degree in co-relation 222. Up to 2 conditions per place. [2022-11-25 18:20:40,322 INFO L119 LiptonReduction]: Number of co-enabled transitions 1824 [2022-11-25 18:20:52,991 INFO L134 LiptonReduction]: Checked pairs total: 3077 [2022-11-25 18:20:52,991 INFO L136 LiptonReduction]: Total number of compositions: 249 [2022-11-25 18:20:53,025 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-25 18:20:53,034 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;@358af9f7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-25 18:20:53,035 INFO L358 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2022-11-25 18:20:53,055 INFO L130 PetriNetUnfolder]: 7/36 cut-off events. [2022-11-25 18:20:53,058 INFO L131 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2022-11-25 18:20:53,058 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 18:20:53,059 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 18:20:53,059 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-11-25 18:20:53,065 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:20:53,066 INFO L85 PathProgramCache]: Analyzing trace with hash -200215893, now seen corresponding path program 1 times [2022-11-25 18:20:53,080 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:20:53,081 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1542028923] [2022-11-25 18:20:53,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:20:53,082 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:20:53,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:20:53,814 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 18:20:53,816 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 18:20:53,816 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1542028923] [2022-11-25 18:20:53,816 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1542028923] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:20:53,821 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:20:53,822 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-25 18:20:53,823 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1403444269] [2022-11-25 18:20:53,824 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:20:53,832 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 18:20:53,832 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 18:20:53,859 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 18:20:53,862 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 18:20:53,879 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 236 out of 514 [2022-11-25 18:20:53,886 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 43 places, 37 transitions, 98 flow. Second operand has 3 states, 3 states have (on average 244.0) internal successors, (732), 3 states have internal predecessors, (732), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:20:53,886 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 18:20:53,886 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 236 of 514 [2022-11-25 18:20:53,887 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 18:20:54,338 INFO L130 PetriNetUnfolder]: 1616/2215 cut-off events. [2022-11-25 18:20:54,338 INFO L131 PetriNetUnfolder]: For 143/143 co-relation queries the response was YES. [2022-11-25 18:20:54,343 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4411 conditions, 2215 events. 1616/2215 cut-off events. For 143/143 co-relation queries the response was YES. Maximal size of possible extension queue 130. Compared 8972 event pairs, 271 based on Foata normal form. 1/1326 useless extension candidates. Maximal degree in co-relation 3408. Up to 1413 conditions per place. [2022-11-25 18:20:54,356 INFO L137 encePairwiseOnDemand]: 510/514 looper letters, 45 selfloop transitions, 3 changer transitions 1/55 dead transitions. [2022-11-25 18:20:54,356 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 45 places, 55 transitions, 247 flow [2022-11-25 18:20:54,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 18:20:54,360 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-25 18:20:54,377 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 758 transitions. [2022-11-25 18:20:54,382 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4915693904020752 [2022-11-25 18:20:54,383 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 758 transitions. [2022-11-25 18:20:54,383 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 758 transitions. [2022-11-25 18:20:54,388 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 18:20:54,391 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 758 transitions. [2022-11-25 18:20:54,397 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 252.66666666666666) internal successors, (758), 3 states have internal predecessors, (758), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:20:54,410 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 514.0) internal successors, (2056), 4 states have internal predecessors, (2056), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:20:54,411 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 514.0) internal successors, (2056), 4 states have internal predecessors, (2056), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:20:54,413 INFO L175 Difference]: Start difference. First operand has 43 places, 37 transitions, 98 flow. Second operand 3 states and 758 transitions. [2022-11-25 18:20:54,414 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 45 places, 55 transitions, 247 flow [2022-11-25 18:20:54,420 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 37 places, 55 transitions, 221 flow, removed 0 selfloop flow, removed 8 redundant places. [2022-11-25 18:20:54,422 INFO L231 Difference]: Finished difference. Result has 38 places, 39 transitions, 101 flow [2022-11-25 18:20:54,424 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=514, PETRI_DIFFERENCE_MINUEND_FLOW=82, PETRI_DIFFERENCE_MINUEND_PLACES=35, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=37, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=101, PETRI_PLACES=38, PETRI_TRANSITIONS=39} [2022-11-25 18:20:54,428 INFO L288 CegarLoopForPetriNet]: 43 programPoint places, -5 predicate places. [2022-11-25 18:20:54,428 INFO L495 AbstractCegarLoop]: Abstraction has has 38 places, 39 transitions, 101 flow [2022-11-25 18:20:54,429 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 244.0) internal successors, (732), 3 states have internal predecessors, (732), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:20:54,429 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 18:20:54,430 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 18:20:54,430 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-25 18:20:54,430 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-11-25 18:20:54,431 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:20:54,431 INFO L85 PathProgramCache]: Analyzing trace with hash 1471820720, now seen corresponding path program 1 times [2022-11-25 18:20:54,431 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:20:54,432 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1166065503] [2022-11-25 18:20:54,432 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:20:54,432 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:20:54,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:20:54,659 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 18:20:54,659 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 18:20:54,659 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1166065503] [2022-11-25 18:20:54,659 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1166065503] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:20:54,660 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:20:54,660 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-25 18:20:54,661 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [210299958] [2022-11-25 18:20:54,661 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:20:54,662 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 18:20:54,662 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 18:20:54,663 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 18:20:54,663 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 18:20:54,675 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 233 out of 514 [2022-11-25 18:20:54,676 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 38 places, 39 transitions, 101 flow. Second operand has 3 states, 3 states have (on average 241.33333333333334) internal successors, (724), 3 states have internal predecessors, (724), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:20:54,676 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 18:20:54,676 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 233 of 514 [2022-11-25 18:20:54,677 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 18:20:55,147 INFO L130 PetriNetUnfolder]: 1710/2322 cut-off events. [2022-11-25 18:20:55,147 INFO L131 PetriNetUnfolder]: For 465/465 co-relation queries the response was YES. [2022-11-25 18:20:55,150 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5152 conditions, 2322 events. 1710/2322 cut-off events. For 465/465 co-relation queries the response was YES. Maximal size of possible extension queue 133. Compared 9731 event pairs, 425 based on Foata normal form. 88/1880 useless extension candidates. Maximal degree in co-relation 1766. Up to 1509 conditions per place. [2022-11-25 18:20:55,161 INFO L137 encePairwiseOnDemand]: 511/514 looper letters, 54 selfloop transitions, 2 changer transitions 0/62 dead transitions. [2022-11-25 18:20:55,161 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 40 places, 62 transitions, 273 flow [2022-11-25 18:20:55,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 18:20:55,162 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-25 18:20:55,164 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 753 transitions. [2022-11-25 18:20:55,164 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4883268482490272 [2022-11-25 18:20:55,165 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 753 transitions. [2022-11-25 18:20:55,165 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 753 transitions. [2022-11-25 18:20:55,165 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 18:20:55,166 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 753 transitions. [2022-11-25 18:20:55,167 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 251.0) internal successors, (753), 3 states have internal predecessors, (753), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:20:55,171 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 514.0) internal successors, (2056), 4 states have internal predecessors, (2056), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:20:55,172 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 514.0) internal successors, (2056), 4 states have internal predecessors, (2056), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:20:55,172 INFO L175 Difference]: Start difference. First operand has 38 places, 39 transitions, 101 flow. Second operand 3 states and 753 transitions. [2022-11-25 18:20:55,172 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 40 places, 62 transitions, 273 flow [2022-11-25 18:20:55,173 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 39 places, 62 transitions, 269 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-25 18:20:55,175 INFO L231 Difference]: Finished difference. Result has 40 places, 40 transitions, 112 flow [2022-11-25 18:20:55,175 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=514, PETRI_DIFFERENCE_MINUEND_FLOW=98, PETRI_DIFFERENCE_MINUEND_PLACES=37, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=39, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=112, PETRI_PLACES=40, PETRI_TRANSITIONS=40} [2022-11-25 18:20:55,176 INFO L288 CegarLoopForPetriNet]: 43 programPoint places, -3 predicate places. [2022-11-25 18:20:55,176 INFO L495 AbstractCegarLoop]: Abstraction has has 40 places, 40 transitions, 112 flow [2022-11-25 18:20:55,177 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 241.33333333333334) internal successors, (724), 3 states have internal predecessors, (724), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:20:55,177 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 18:20:55,177 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 18:20:55,177 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-25 18:20:55,178 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-11-25 18:20:55,178 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:20:55,178 INFO L85 PathProgramCache]: Analyzing trace with hash -1756806844, now seen corresponding path program 1 times [2022-11-25 18:20:55,178 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:20:55,179 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [180248643] [2022-11-25 18:20:55,179 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:20:55,179 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:20:55,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:20:55,294 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 18:20:55,295 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 18:20:55,295 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [180248643] [2022-11-25 18:20:55,295 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [180248643] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:20:55,295 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:20:55,296 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-25 18:20:55,296 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1544788012] [2022-11-25 18:20:55,296 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:20:55,296 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 18:20:55,296 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 18:20:55,297 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 18:20:55,297 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 18:20:55,307 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 233 out of 514 [2022-11-25 18:20:55,308 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 40 places, 40 transitions, 112 flow. Second operand has 3 states, 3 states have (on average 241.33333333333334) internal successors, (724), 3 states have internal predecessors, (724), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:20:55,308 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 18:20:55,308 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 233 of 514 [2022-11-25 18:20:55,309 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 18:20:55,739 INFO L130 PetriNetUnfolder]: 1670/2399 cut-off events. [2022-11-25 18:20:55,743 INFO L131 PetriNetUnfolder]: For 1005/1005 co-relation queries the response was YES. [2022-11-25 18:20:55,747 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5582 conditions, 2399 events. 1670/2399 cut-off events. For 1005/1005 co-relation queries the response was YES. Maximal size of possible extension queue 135. Compared 11123 event pairs, 475 based on Foata normal form. 66/2158 useless extension candidates. Maximal degree in co-relation 3728. Up to 1541 conditions per place. [2022-11-25 18:20:55,760 INFO L137 encePairwiseOnDemand]: 511/514 looper letters, 54 selfloop transitions, 2 changer transitions 0/62 dead transitions. [2022-11-25 18:20:55,760 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 42 places, 62 transitions, 289 flow [2022-11-25 18:20:55,762 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 18:20:55,762 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-25 18:20:55,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 751 transitions. [2022-11-25 18:20:55,770 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.48702983138780803 [2022-11-25 18:20:55,772 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 751 transitions. [2022-11-25 18:20:55,774 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 751 transitions. [2022-11-25 18:20:55,774 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 18:20:55,775 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 751 transitions. [2022-11-25 18:20:55,777 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 250.33333333333334) internal successors, (751), 3 states have internal predecessors, (751), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:20:55,784 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 514.0) internal successors, (2056), 4 states have internal predecessors, (2056), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:20:55,789 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 514.0) internal successors, (2056), 4 states have internal predecessors, (2056), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:20:55,790 INFO L175 Difference]: Start difference. First operand has 40 places, 40 transitions, 112 flow. Second operand 3 states and 751 transitions. [2022-11-25 18:20:55,790 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 42 places, 62 transitions, 289 flow [2022-11-25 18:20:55,792 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 41 places, 62 transitions, 286 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-25 18:20:55,793 INFO L231 Difference]: Finished difference. Result has 42 places, 41 transitions, 124 flow [2022-11-25 18:20:55,794 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=514, PETRI_DIFFERENCE_MINUEND_FLOW=110, PETRI_DIFFERENCE_MINUEND_PLACES=39, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=40, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=124, PETRI_PLACES=42, PETRI_TRANSITIONS=41} [2022-11-25 18:20:55,794 INFO L288 CegarLoopForPetriNet]: 43 programPoint places, -1 predicate places. [2022-11-25 18:20:55,795 INFO L495 AbstractCegarLoop]: Abstraction has has 42 places, 41 transitions, 124 flow [2022-11-25 18:20:55,795 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 241.33333333333334) internal successors, (724), 3 states have internal predecessors, (724), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:20:55,795 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 18:20:55,796 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 18:20:55,796 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-25 18:20:55,796 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-11-25 18:20:55,797 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:20:55,797 INFO L85 PathProgramCache]: Analyzing trace with hash -1859144260, now seen corresponding path program 1 times [2022-11-25 18:20:55,797 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:20:55,797 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [135048838] [2022-11-25 18:20:55,797 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:20:55,798 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:20:55,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:20:56,019 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-25 18:20:56,019 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 18:20:56,019 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [135048838] [2022-11-25 18:20:56,020 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [135048838] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:20:56,020 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:20:56,020 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 18:20:56,022 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2063565072] [2022-11-25 18:20:56,022 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:20:56,022 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-25 18:20:56,023 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 18:20:56,024 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-25 18:20:56,025 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-25 18:20:56,120 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 223 out of 514 [2022-11-25 18:20:56,121 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 42 places, 41 transitions, 124 flow. Second operand has 4 states, 4 states have (on average 229.5) internal successors, (918), 4 states have internal predecessors, (918), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:20:56,122 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 18:20:56,122 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 223 of 514 [2022-11-25 18:20:56,122 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 18:20:56,844 INFO L130 PetriNetUnfolder]: 2559/3823 cut-off events. [2022-11-25 18:20:56,845 INFO L131 PetriNetUnfolder]: For 2065/2065 co-relation queries the response was YES. [2022-11-25 18:20:56,852 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9318 conditions, 3823 events. 2559/3823 cut-off events. For 2065/2065 co-relation queries the response was YES. Maximal size of possible extension queue 214. Compared 21019 event pairs, 1885 based on Foata normal form. 148/3855 useless extension candidates. Maximal degree in co-relation 5205. Up to 2239 conditions per place. [2022-11-25 18:20:56,869 INFO L137 encePairwiseOnDemand]: 507/514 looper letters, 87 selfloop transitions, 6 changer transitions 0/99 dead transitions. [2022-11-25 18:20:56,869 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 46 places, 99 transitions, 472 flow [2022-11-25 18:20:56,870 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-25 18:20:56,870 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-11-25 18:20:56,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1202 transitions. [2022-11-25 18:20:56,873 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.467704280155642 [2022-11-25 18:20:56,874 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1202 transitions. [2022-11-25 18:20:56,874 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1202 transitions. [2022-11-25 18:20:56,875 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 18:20:56,875 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1202 transitions. [2022-11-25 18:20:56,878 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 240.4) internal successors, (1202), 5 states have internal predecessors, (1202), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:20:56,884 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 514.0) internal successors, (3084), 6 states have internal predecessors, (3084), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:20:56,886 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 514.0) internal successors, (3084), 6 states have internal predecessors, (3084), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:20:56,886 INFO L175 Difference]: Start difference. First operand has 42 places, 41 transitions, 124 flow. Second operand 5 states and 1202 transitions. [2022-11-25 18:20:56,886 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 46 places, 99 transitions, 472 flow [2022-11-25 18:20:56,890 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 45 places, 99 transitions, 468 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-25 18:20:56,892 INFO L231 Difference]: Finished difference. Result has 48 places, 46 transitions, 168 flow [2022-11-25 18:20:56,892 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=514, PETRI_DIFFERENCE_MINUEND_FLOW=122, PETRI_DIFFERENCE_MINUEND_PLACES=41, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=41, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=168, PETRI_PLACES=48, PETRI_TRANSITIONS=46} [2022-11-25 18:20:56,895 INFO L288 CegarLoopForPetriNet]: 43 programPoint places, 5 predicate places. [2022-11-25 18:20:56,895 INFO L495 AbstractCegarLoop]: Abstraction has has 48 places, 46 transitions, 168 flow [2022-11-25 18:20:56,896 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 229.5) internal successors, (918), 4 states have internal predecessors, (918), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:20:56,896 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 18:20:56,896 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 18:20:56,896 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-25 18:20:56,897 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-11-25 18:20:56,897 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:20:56,897 INFO L85 PathProgramCache]: Analyzing trace with hash 448762067, now seen corresponding path program 1 times [2022-11-25 18:20:56,897 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:20:56,898 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1591247972] [2022-11-25 18:20:56,898 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:20:56,898 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:20:56,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:20:57,138 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-25 18:20:57,139 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 18:20:57,139 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1591247972] [2022-11-25 18:20:57,139 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1591247972] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:20:57,139 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:20:57,140 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-25 18:20:57,140 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1864057270] [2022-11-25 18:20:57,140 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:20:57,141 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-25 18:20:57,141 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 18:20:57,141 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-25 18:20:57,141 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-25 18:20:57,235 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 223 out of 514 [2022-11-25 18:20:57,237 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 48 places, 46 transitions, 168 flow. Second operand has 4 states, 4 states have (on average 229.5) internal successors, (918), 4 states have internal predecessors, (918), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:20:57,237 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 18:20:57,237 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 223 of 514 [2022-11-25 18:20:57,237 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 18:20:58,222 INFO L130 PetriNetUnfolder]: 3784/5861 cut-off events. [2022-11-25 18:20:58,222 INFO L131 PetriNetUnfolder]: For 3461/3461 co-relation queries the response was YES. [2022-11-25 18:20:58,237 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13963 conditions, 5861 events. 3784/5861 cut-off events. For 3461/3461 co-relation queries the response was YES. Maximal size of possible extension queue 320. Compared 36607 event pairs, 2929 based on Foata normal form. 274/5992 useless extension candidates. Maximal degree in co-relation 9642. Up to 3657 conditions per place. [2022-11-25 18:20:58,260 INFO L137 encePairwiseOnDemand]: 509/514 looper letters, 88 selfloop transitions, 6 changer transitions 1/101 dead transitions. [2022-11-25 18:20:58,260 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 52 places, 101 transitions, 532 flow [2022-11-25 18:20:58,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-25 18:20:58,260 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-11-25 18:20:58,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1198 transitions. [2022-11-25 18:20:58,264 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.466147859922179 [2022-11-25 18:20:58,264 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1198 transitions. [2022-11-25 18:20:58,264 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1198 transitions. [2022-11-25 18:20:58,265 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 18:20:58,265 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1198 transitions. [2022-11-25 18:20:58,268 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 239.6) internal successors, (1198), 5 states have internal predecessors, (1198), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:20:58,273 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 514.0) internal successors, (3084), 6 states have internal predecessors, (3084), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:20:58,275 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 514.0) internal successors, (3084), 6 states have internal predecessors, (3084), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:20:58,276 INFO L175 Difference]: Start difference. First operand has 48 places, 46 transitions, 168 flow. Second operand 5 states and 1198 transitions. [2022-11-25 18:20:58,276 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 52 places, 101 transitions, 532 flow [2022-11-25 18:20:58,280 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 51 places, 101 transitions, 528 flow, removed 1 selfloop flow, removed 1 redundant places. [2022-11-25 18:20:58,282 INFO L231 Difference]: Finished difference. Result has 54 places, 49 transitions, 208 flow [2022-11-25 18:20:58,283 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=514, PETRI_DIFFERENCE_MINUEND_FLOW=164, PETRI_DIFFERENCE_MINUEND_PLACES=47, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=46, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=40, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=208, PETRI_PLACES=54, PETRI_TRANSITIONS=49} [2022-11-25 18:20:58,285 INFO L288 CegarLoopForPetriNet]: 43 programPoint places, 11 predicate places. [2022-11-25 18:20:58,285 INFO L495 AbstractCegarLoop]: Abstraction has has 54 places, 49 transitions, 208 flow [2022-11-25 18:20:58,286 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 229.5) internal successors, (918), 4 states have internal predecessors, (918), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:20:58,286 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 18:20:58,286 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 18:20:58,287 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-25 18:20:58,287 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-11-25 18:20:58,287 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:20:58,287 INFO L85 PathProgramCache]: Analyzing trace with hash -1935094410, now seen corresponding path program 1 times [2022-11-25 18:20:58,288 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:20:58,288 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [255825915] [2022-11-25 18:20:58,288 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:20:58,288 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:20:58,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:20:58,706 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-25 18:20:58,707 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 18:20:58,708 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [255825915] [2022-11-25 18:20:58,708 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [255825915] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:20:58,708 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:20:58,708 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-25 18:20:58,709 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [532678832] [2022-11-25 18:20:58,710 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:20:58,710 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-25 18:20:58,710 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 18:20:58,711 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-25 18:20:58,712 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-25 18:20:58,860 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 219 out of 514 [2022-11-25 18:20:58,861 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 54 places, 49 transitions, 208 flow. Second operand has 6 states, 6 states have (on average 223.66666666666666) internal successors, (1342), 6 states have internal predecessors, (1342), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:20:58,862 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 18:20:58,862 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 219 of 514 [2022-11-25 18:20:58,862 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 18:21:00,301 INFO L130 PetriNetUnfolder]: 5175/7840 cut-off events. [2022-11-25 18:21:00,301 INFO L131 PetriNetUnfolder]: For 5556/5572 co-relation queries the response was YES. [2022-11-25 18:21:00,328 INFO L83 FinitePrefix]: Finished finitePrefix Result has 18936 conditions, 7840 events. 5175/7840 cut-off events. For 5556/5572 co-relation queries the response was YES. Maximal size of possible extension queue 407. Compared 48481 event pairs, 2323 based on Foata normal form. 156/7916 useless extension candidates. Maximal degree in co-relation 15581. Up to 2592 conditions per place. [2022-11-25 18:21:00,369 INFO L137 encePairwiseOnDemand]: 508/514 looper letters, 96 selfloop transitions, 10 changer transitions 0/111 dead transitions. [2022-11-25 18:21:00,369 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 59 places, 111 transitions, 617 flow [2022-11-25 18:21:00,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-25 18:21:00,370 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-25 18:21:00,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1404 transitions. [2022-11-25 18:21:00,375 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.45525291828793774 [2022-11-25 18:21:00,375 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1404 transitions. [2022-11-25 18:21:00,375 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1404 transitions. [2022-11-25 18:21:00,376 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 18:21:00,376 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1404 transitions. [2022-11-25 18:21:00,381 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 234.0) internal successors, (1404), 6 states have internal predecessors, (1404), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:21:00,388 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 514.0) internal successors, (3598), 7 states have internal predecessors, (3598), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:21:00,390 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 514.0) internal successors, (3598), 7 states have internal predecessors, (3598), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:21:00,390 INFO L175 Difference]: Start difference. First operand has 54 places, 49 transitions, 208 flow. Second operand 6 states and 1404 transitions. [2022-11-25 18:21:00,390 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 59 places, 111 transitions, 617 flow [2022-11-25 18:21:00,396 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 58 places, 111 transitions, 607 flow, removed 3 selfloop flow, removed 1 redundant places. [2022-11-25 18:21:00,398 INFO L231 Difference]: Finished difference. Result has 60 places, 52 transitions, 243 flow [2022-11-25 18:21:00,398 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=514, PETRI_DIFFERENCE_MINUEND_FLOW=198, PETRI_DIFFERENCE_MINUEND_PLACES=53, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=49, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=39, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=243, PETRI_PLACES=60, PETRI_TRANSITIONS=52} [2022-11-25 18:21:00,401 INFO L288 CegarLoopForPetriNet]: 43 programPoint places, 17 predicate places. [2022-11-25 18:21:00,401 INFO L495 AbstractCegarLoop]: Abstraction has has 60 places, 52 transitions, 243 flow [2022-11-25 18:21:00,402 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 223.66666666666666) internal successors, (1342), 6 states have internal predecessors, (1342), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:21:00,402 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 18:21:00,402 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 18:21:00,402 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-25 18:21:00,403 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-11-25 18:21:00,403 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:21:00,403 INFO L85 PathProgramCache]: Analyzing trace with hash 1876323012, now seen corresponding path program 1 times [2022-11-25 18:21:00,404 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:21:00,404 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [454341164] [2022-11-25 18:21:00,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:21:00,404 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:21:00,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:21:00,892 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-25 18:21:00,892 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 18:21:00,892 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [454341164] [2022-11-25 18:21:00,892 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [454341164] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:21:00,893 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:21:00,893 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-25 18:21:00,893 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [709671094] [2022-11-25 18:21:00,893 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:21:00,893 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-25 18:21:00,894 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 18:21:00,894 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-25 18:21:00,894 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-25 18:21:01,133 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 219 out of 514 [2022-11-25 18:21:01,135 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 60 places, 52 transitions, 243 flow. Second operand has 6 states, 6 states have (on average 223.66666666666666) internal successors, (1342), 6 states have internal predecessors, (1342), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:21:01,135 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 18:21:01,135 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 219 of 514 [2022-11-25 18:21:01,135 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 18:21:02,197 INFO L130 PetriNetUnfolder]: 3773/5792 cut-off events. [2022-11-25 18:21:02,197 INFO L131 PetriNetUnfolder]: For 4219/4224 co-relation queries the response was YES. [2022-11-25 18:21:02,215 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14153 conditions, 5792 events. 3773/5792 cut-off events. For 4219/4224 co-relation queries the response was YES. Maximal size of possible extension queue 283. Compared 35204 event pairs, 1511 based on Foata normal form. 65/5770 useless extension candidates. Maximal degree in co-relation 10375. Up to 2256 conditions per place. [2022-11-25 18:21:02,232 INFO L137 encePairwiseOnDemand]: 508/514 looper letters, 60 selfloop transitions, 8 changer transitions 32/105 dead transitions. [2022-11-25 18:21:02,232 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 65 places, 105 transitions, 585 flow [2022-11-25 18:21:02,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-25 18:21:02,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-25 18:21:02,236 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1401 transitions. [2022-11-25 18:21:02,237 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.45428015564202334 [2022-11-25 18:21:02,237 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1401 transitions. [2022-11-25 18:21:02,237 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1401 transitions. [2022-11-25 18:21:02,238 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 18:21:02,238 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1401 transitions. [2022-11-25 18:21:02,241 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 233.5) internal successors, (1401), 6 states have internal predecessors, (1401), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:21:02,246 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 514.0) internal successors, (3598), 7 states have internal predecessors, (3598), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:21:02,248 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 514.0) internal successors, (3598), 7 states have internal predecessors, (3598), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:21:02,248 INFO L175 Difference]: Start difference. First operand has 60 places, 52 transitions, 243 flow. Second operand 6 states and 1401 transitions. [2022-11-25 18:21:02,248 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 65 places, 105 transitions, 585 flow [2022-11-25 18:21:02,252 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 63 places, 105 transitions, 573 flow, removed 3 selfloop flow, removed 2 redundant places. [2022-11-25 18:21:02,255 INFO L231 Difference]: Finished difference. Result has 64 places, 50 transitions, 240 flow [2022-11-25 18:21:02,256 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=514, PETRI_DIFFERENCE_MINUEND_FLOW=233, PETRI_DIFFERENCE_MINUEND_PLACES=58, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=52, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=44, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=240, PETRI_PLACES=64, PETRI_TRANSITIONS=50} [2022-11-25 18:21:02,256 INFO L288 CegarLoopForPetriNet]: 43 programPoint places, 21 predicate places. [2022-11-25 18:21:02,256 INFO L495 AbstractCegarLoop]: Abstraction has has 64 places, 50 transitions, 240 flow [2022-11-25 18:21:02,257 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 223.66666666666666) internal successors, (1342), 6 states have internal predecessors, (1342), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:21:02,257 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 18:21:02,257 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 18:21:02,258 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-25 18:21:02,258 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-11-25 18:21:02,258 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:21:02,258 INFO L85 PathProgramCache]: Analyzing trace with hash 328852542, now seen corresponding path program 1 times [2022-11-25 18:21:02,259 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:21:02,259 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1051490285] [2022-11-25 18:21:02,260 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:21:02,260 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:21:02,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:21:02,653 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-25 18:21:02,654 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 18:21:02,654 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1051490285] [2022-11-25 18:21:02,654 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1051490285] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:21:02,654 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:21:02,654 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-25 18:21:02,655 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [407775631] [2022-11-25 18:21:02,655 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:21:02,655 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-25 18:21:02,655 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 18:21:02,656 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-25 18:21:02,656 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-11-25 18:21:02,871 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 215 out of 514 [2022-11-25 18:21:02,873 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 64 places, 50 transitions, 240 flow. Second operand has 6 states, 6 states have (on average 219.83333333333334) internal successors, (1319), 6 states have internal predecessors, (1319), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:21:02,873 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 18:21:02,873 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 215 of 514 [2022-11-25 18:21:02,873 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 18:21:03,835 INFO L130 PetriNetUnfolder]: 3749/5331 cut-off events. [2022-11-25 18:21:03,835 INFO L131 PetriNetUnfolder]: For 4319/4319 co-relation queries the response was YES. [2022-11-25 18:21:03,853 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13753 conditions, 5331 events. 3749/5331 cut-off events. For 4319/4319 co-relation queries the response was YES. Maximal size of possible extension queue 268. Compared 27757 event pairs, 847 based on Foata normal form. 330/5601 useless extension candidates. Maximal degree in co-relation 11056. Up to 2786 conditions per place. [2022-11-25 18:21:03,870 INFO L137 encePairwiseOnDemand]: 507/514 looper letters, 77 selfloop transitions, 9 changer transitions 12/102 dead transitions. [2022-11-25 18:21:03,871 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 66 places, 102 transitions, 621 flow [2022-11-25 18:21:03,871 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-25 18:21:03,871 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-11-25 18:21:03,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 1587 transitions. [2022-11-25 18:21:03,876 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.44107837687604223 [2022-11-25 18:21:03,876 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 1587 transitions. [2022-11-25 18:21:03,876 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 1587 transitions. [2022-11-25 18:21:03,878 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 18:21:03,878 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 1587 transitions. [2022-11-25 18:21:03,881 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 226.71428571428572) internal successors, (1587), 7 states have internal predecessors, (1587), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:21:03,888 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 514.0) internal successors, (4112), 8 states have internal predecessors, (4112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:21:03,890 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 514.0) internal successors, (4112), 8 states have internal predecessors, (4112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:21:03,890 INFO L175 Difference]: Start difference. First operand has 64 places, 50 transitions, 240 flow. Second operand 7 states and 1587 transitions. [2022-11-25 18:21:03,890 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 66 places, 102 transitions, 621 flow [2022-11-25 18:21:03,895 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 61 places, 102 transitions, 589 flow, removed 8 selfloop flow, removed 5 redundant places. [2022-11-25 18:21:03,896 INFO L231 Difference]: Finished difference. Result has 64 places, 51 transitions, 246 flow [2022-11-25 18:21:03,896 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=514, PETRI_DIFFERENCE_MINUEND_FLOW=222, PETRI_DIFFERENCE_MINUEND_PLACES=55, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=50, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=42, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=246, PETRI_PLACES=64, PETRI_TRANSITIONS=51} [2022-11-25 18:21:03,899 INFO L288 CegarLoopForPetriNet]: 43 programPoint places, 21 predicate places. [2022-11-25 18:21:03,899 INFO L495 AbstractCegarLoop]: Abstraction has has 64 places, 51 transitions, 246 flow [2022-11-25 18:21:03,900 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 219.83333333333334) internal successors, (1319), 6 states have internal predecessors, (1319), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:21:03,900 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 18:21:03,900 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 18:21:03,900 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-25 18:21:03,901 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-11-25 18:21:03,901 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:21:03,901 INFO L85 PathProgramCache]: Analyzing trace with hash 1434603894, now seen corresponding path program 1 times [2022-11-25 18:21:03,901 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:21:03,901 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1728982090] [2022-11-25 18:21:03,902 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:21:03,902 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:21:03,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:21:04,356 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-25 18:21:04,356 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 18:21:04,356 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1728982090] [2022-11-25 18:21:04,357 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1728982090] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:21:04,357 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:21:04,357 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-25 18:21:04,357 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2123606810] [2022-11-25 18:21:04,357 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:21:04,358 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-25 18:21:04,358 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 18:21:04,358 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-25 18:21:04,359 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-11-25 18:21:04,552 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 215 out of 514 [2022-11-25 18:21:04,554 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 64 places, 51 transitions, 246 flow. Second operand has 6 states, 6 states have (on average 219.83333333333334) internal successors, (1319), 6 states have internal predecessors, (1319), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:21:04,554 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 18:21:04,554 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 215 of 514 [2022-11-25 18:21:04,554 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 18:21:05,712 INFO L130 PetriNetUnfolder]: 3635/5050 cut-off events. [2022-11-25 18:21:05,712 INFO L131 PetriNetUnfolder]: For 5783/6007 co-relation queries the response was YES. [2022-11-25 18:21:05,736 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14412 conditions, 5050 events. 3635/5050 cut-off events. For 5783/6007 co-relation queries the response was YES. Maximal size of possible extension queue 252. Compared 24212 event pairs, 674 based on Foata normal form. 490/5488 useless extension candidates. Maximal degree in co-relation 12085. Up to 2542 conditions per place. [2022-11-25 18:21:05,756 INFO L137 encePairwiseOnDemand]: 507/514 looper letters, 81 selfloop transitions, 7 changer transitions 12/106 dead transitions. [2022-11-25 18:21:05,756 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 68 places, 106 transitions, 668 flow [2022-11-25 18:21:05,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-25 18:21:05,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-11-25 18:21:05,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 1587 transitions. [2022-11-25 18:21:05,762 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.44107837687604223 [2022-11-25 18:21:05,763 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 1587 transitions. [2022-11-25 18:21:05,763 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 1587 transitions. [2022-11-25 18:21:05,764 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 18:21:05,764 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 1587 transitions. [2022-11-25 18:21:05,769 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 226.71428571428572) internal successors, (1587), 7 states have internal predecessors, (1587), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:21:05,776 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 514.0) internal successors, (4112), 8 states have internal predecessors, (4112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:21:05,777 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 514.0) internal successors, (4112), 8 states have internal predecessors, (4112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:21:05,777 INFO L175 Difference]: Start difference. First operand has 64 places, 51 transitions, 246 flow. Second operand 7 states and 1587 transitions. [2022-11-25 18:21:05,778 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 68 places, 106 transitions, 668 flow [2022-11-25 18:21:05,785 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 62 places, 106 transitions, 620 flow, removed 11 selfloop flow, removed 6 redundant places. [2022-11-25 18:21:05,787 INFO L231 Difference]: Finished difference. Result has 65 places, 50 transitions, 226 flow [2022-11-25 18:21:05,787 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=514, PETRI_DIFFERENCE_MINUEND_FLOW=219, PETRI_DIFFERENCE_MINUEND_PLACES=56, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=51, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=45, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=226, PETRI_PLACES=65, PETRI_TRANSITIONS=50} [2022-11-25 18:21:05,788 INFO L288 CegarLoopForPetriNet]: 43 programPoint places, 22 predicate places. [2022-11-25 18:21:05,788 INFO L495 AbstractCegarLoop]: Abstraction has has 65 places, 50 transitions, 226 flow [2022-11-25 18:21:05,789 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 219.83333333333334) internal successors, (1319), 6 states have internal predecessors, (1319), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:21:05,789 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 18:21:05,789 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 18:21:05,789 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-25 18:21:05,790 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-11-25 18:21:05,790 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:21:05,790 INFO L85 PathProgramCache]: Analyzing trace with hash -1519870586, now seen corresponding path program 1 times [2022-11-25 18:21:05,790 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:21:05,791 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1290813705] [2022-11-25 18:21:05,791 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:21:05,791 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:21:05,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:21:06,098 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-11-25 18:21:06,098 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 18:21:06,098 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1290813705] [2022-11-25 18:21:06,099 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1290813705] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:21:06,099 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:21:06,099 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-25 18:21:06,099 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1455521635] [2022-11-25 18:21:06,099 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:21:06,100 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-25 18:21:06,100 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 18:21:06,100 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-25 18:21:06,101 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-25 18:21:06,113 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 230 out of 514 [2022-11-25 18:21:06,115 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 65 places, 50 transitions, 226 flow. Second operand has 5 states, 5 states have (on average 236.2) internal successors, (1181), 5 states have internal predecessors, (1181), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:21:06,115 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 18:21:06,116 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 230 of 514 [2022-11-25 18:21:06,116 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 18:21:07,167 INFO L130 PetriNetUnfolder]: 4862/6474 cut-off events. [2022-11-25 18:21:07,167 INFO L131 PetriNetUnfolder]: For 9350/9800 co-relation queries the response was YES. [2022-11-25 18:21:07,201 INFO L83 FinitePrefix]: Finished finitePrefix Result has 20130 conditions, 6474 events. 4862/6474 cut-off events. For 9350/9800 co-relation queries the response was YES. Maximal size of possible extension queue 300. Compared 29405 event pairs, 937 based on Foata normal form. 376/6824 useless extension candidates. Maximal degree in co-relation 20098. Up to 2521 conditions per place. [2022-11-25 18:21:07,226 INFO L137 encePairwiseOnDemand]: 508/514 looper letters, 92 selfloop transitions, 13 changer transitions 0/111 dead transitions. [2022-11-25 18:21:07,227 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 68 places, 111 transitions, 685 flow [2022-11-25 18:21:07,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-25 18:21:07,227 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-25 18:21:07,230 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1466 transitions. [2022-11-25 18:21:07,231 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.47535667963683526 [2022-11-25 18:21:07,231 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1466 transitions. [2022-11-25 18:21:07,232 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1466 transitions. [2022-11-25 18:21:07,233 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 18:21:07,233 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1466 transitions. [2022-11-25 18:21:07,237 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 244.33333333333334) internal successors, (1466), 6 states have internal predecessors, (1466), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:21:07,242 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 514.0) internal successors, (3598), 7 states have internal predecessors, (3598), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:21:07,243 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 514.0) internal successors, (3598), 7 states have internal predecessors, (3598), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:21:07,243 INFO L175 Difference]: Start difference. First operand has 65 places, 50 transitions, 226 flow. Second operand 6 states and 1466 transitions. [2022-11-25 18:21:07,244 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 68 places, 111 transitions, 685 flow [2022-11-25 18:21:07,253 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 63 places, 111 transitions, 638 flow, removed 13 selfloop flow, removed 5 redundant places. [2022-11-25 18:21:07,255 INFO L231 Difference]: Finished difference. Result has 67 places, 58 transitions, 305 flow [2022-11-25 18:21:07,255 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=514, PETRI_DIFFERENCE_MINUEND_FLOW=202, PETRI_DIFFERENCE_MINUEND_PLACES=58, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=50, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=41, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=305, PETRI_PLACES=67, PETRI_TRANSITIONS=58} [2022-11-25 18:21:07,256 INFO L288 CegarLoopForPetriNet]: 43 programPoint places, 24 predicate places. [2022-11-25 18:21:07,256 INFO L495 AbstractCegarLoop]: Abstraction has has 67 places, 58 transitions, 305 flow [2022-11-25 18:21:07,257 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 236.2) internal successors, (1181), 5 states have internal predecessors, (1181), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:21:07,257 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 18:21:07,257 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 18:21:07,258 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-25 18:21:07,258 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-11-25 18:21:07,258 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:21:07,258 INFO L85 PathProgramCache]: Analyzing trace with hash 1683512992, now seen corresponding path program 1 times [2022-11-25 18:21:07,259 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:21:07,259 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1599955216] [2022-11-25 18:21:07,259 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:21:07,259 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:21:07,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:21:07,532 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-11-25 18:21:07,532 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 18:21:07,532 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1599955216] [2022-11-25 18:21:07,532 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1599955216] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 18:21:07,533 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1434017326] [2022-11-25 18:21:07,533 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:21:07,533 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 18:21:07,533 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe7705b0-4c45-4ba9-9b6b-f3f4f47b84eb/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 18:21:07,538 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe7705b0-4c45-4ba9-9b6b-f3f4f47b84eb/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 18:21:07,566 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe7705b0-4c45-4ba9-9b6b-f3f4f47b84eb/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-25 18:21:07,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:21:07,816 INFO L263 TraceCheckSpWp]: Trace formula consists of 417 conjuncts, 9 conjunts are in the unsatisfiable core [2022-11-25 18:21:07,821 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 18:21:07,919 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-11-25 18:21:07,920 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 18:21:07,920 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1434017326] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:21:07,920 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-25 18:21:07,920 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2022-11-25 18:21:07,920 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [157401417] [2022-11-25 18:21:07,921 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:21:07,921 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-25 18:21:07,921 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 18:21:07,921 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-25 18:21:07,921 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2022-11-25 18:21:07,942 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 230 out of 514 [2022-11-25 18:21:07,944 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 67 places, 58 transitions, 305 flow. Second operand has 5 states, 5 states have (on average 236.2) internal successors, (1181), 5 states have internal predecessors, (1181), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:21:07,944 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 18:21:07,944 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 230 of 514 [2022-11-25 18:21:07,944 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 18:21:09,819 INFO L130 PetriNetUnfolder]: 8890/12118 cut-off events. [2022-11-25 18:21:09,819 INFO L131 PetriNetUnfolder]: For 31139/32129 co-relation queries the response was YES. [2022-11-25 18:21:09,880 INFO L83 FinitePrefix]: Finished finitePrefix Result has 42430 conditions, 12118 events. 8890/12118 cut-off events. For 31139/32129 co-relation queries the response was YES. Maximal size of possible extension queue 475. Compared 62307 event pairs, 1957 based on Foata normal form. 929/12904 useless extension candidates. Maximal degree in co-relation 42402. Up to 4638 conditions per place. [2022-11-25 18:21:09,930 INFO L137 encePairwiseOnDemand]: 508/514 looper letters, 113 selfloop transitions, 13 changer transitions 0/135 dead transitions. [2022-11-25 18:21:09,930 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 72 places, 135 transitions, 972 flow [2022-11-25 18:21:09,930 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-25 18:21:09,931 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-25 18:21:09,933 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1468 transitions. [2022-11-25 18:21:09,934 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.47600518806744485 [2022-11-25 18:21:09,935 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1468 transitions. [2022-11-25 18:21:09,935 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1468 transitions. [2022-11-25 18:21:09,936 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 18:21:09,936 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1468 transitions. [2022-11-25 18:21:09,939 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 244.66666666666666) internal successors, (1468), 6 states have internal predecessors, (1468), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:21:09,944 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 514.0) internal successors, (3598), 7 states have internal predecessors, (3598), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:21:09,945 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 514.0) internal successors, (3598), 7 states have internal predecessors, (3598), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:21:09,946 INFO L175 Difference]: Start difference. First operand has 67 places, 58 transitions, 305 flow. Second operand 6 states and 1468 transitions. [2022-11-25 18:21:09,946 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 72 places, 135 transitions, 972 flow [2022-11-25 18:21:09,975 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 69 places, 135 transitions, 949 flow, removed 8 selfloop flow, removed 3 redundant places. [2022-11-25 18:21:09,977 INFO L231 Difference]: Finished difference. Result has 73 places, 66 transitions, 394 flow [2022-11-25 18:21:09,978 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=514, PETRI_DIFFERENCE_MINUEND_FLOW=291, PETRI_DIFFERENCE_MINUEND_PLACES=64, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=58, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=49, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=394, PETRI_PLACES=73, PETRI_TRANSITIONS=66} [2022-11-25 18:21:09,979 INFO L288 CegarLoopForPetriNet]: 43 programPoint places, 30 predicate places. [2022-11-25 18:21:09,979 INFO L495 AbstractCegarLoop]: Abstraction has has 73 places, 66 transitions, 394 flow [2022-11-25 18:21:09,979 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 236.2) internal successors, (1181), 5 states have internal predecessors, (1181), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:21:09,979 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 18:21:09,980 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 18:21:09,995 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe7705b0-4c45-4ba9-9b6b-f3f4f47b84eb/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-25 18:21:10,186 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe7705b0-4c45-4ba9-9b6b-f3f4f47b84eb/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2022-11-25 18:21:10,187 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-11-25 18:21:10,187 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:21:10,187 INFO L85 PathProgramCache]: Analyzing trace with hash -479737355, now seen corresponding path program 1 times [2022-11-25 18:21:10,187 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:21:10,187 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2064543639] [2022-11-25 18:21:10,188 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:21:10,188 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:21:10,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:21:15,223 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 18:21:15,223 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 18:21:15,223 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2064543639] [2022-11-25 18:21:15,223 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2064543639] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 18:21:15,224 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [25671687] [2022-11-25 18:21:15,224 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:21:15,224 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 18:21:15,224 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe7705b0-4c45-4ba9-9b6b-f3f4f47b84eb/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 18:21:15,227 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe7705b0-4c45-4ba9-9b6b-f3f4f47b84eb/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 18:21:15,250 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe7705b0-4c45-4ba9-9b6b-f3f4f47b84eb/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-25 18:21:15,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:21:15,452 INFO L263 TraceCheckSpWp]: Trace formula consists of 441 conjuncts, 99 conjunts are in the unsatisfiable core [2022-11-25 18:21:15,459 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 18:21:15,533 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 18:21:15,536 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 18:21:15,538 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 18:21:15,539 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 18:21:15,610 INFO L321 Elim1Store]: treesize reduction 72, result has 33.9 percent of original size [2022-11-25 18:21:15,611 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 3 case distinctions, treesize of input 18 treesize of output 47 [2022-11-25 18:21:15,791 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 15 treesize of output 11 [2022-11-25 18:21:15,977 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 18:21:15,978 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 18:21:15,996 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-25 18:21:15,996 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 32 treesize of output 39 [2022-11-25 18:21:16,207 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2022-11-25 18:21:16,440 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 18:21:16,441 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 18:21:16,442 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 18:21:16,458 INFO L321 Elim1Store]: treesize reduction 8, result has 52.9 percent of original size [2022-11-25 18:21:16,459 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 31 treesize of output 31 [2022-11-25 18:21:16,717 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 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 18:21:16,848 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 6 treesize of output 5 [2022-11-25 18:21:17,430 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 6 treesize of output 5 [2022-11-25 18:21:18,282 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 18:21:18,283 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 18:21:18,288 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-25 18:21:18,288 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 24 treesize of output 29 [2022-11-25 18:21:18,712 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 18:21:18,716 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 18:21:18,721 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-25 18:21:18,721 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 24 treesize of output 29 [2022-11-25 18:21:19,300 INFO L321 Elim1Store]: treesize reduction 41, result has 32.8 percent of original size [2022-11-25 18:21:19,301 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 54 treesize of output 33 [2022-11-25 18:21:19,389 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-25 18:21:19,390 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 18:21:20,045 WARN L837 $PredicateComparison]: unable to prove that (or (not (<= 0 c_~q1_back~0)) (not (< c_~q1_back~0 c_~n1~0)) (not (<= 0 c_~q1_front~0)) (not (< c_~q1_front~0 c_~n1~0)) (let ((.cse4 (+ c_~q2~0.offset (* c_~q2_front~0 4))) (.cse5 (+ (* c_~q1_front~0 4) c_~q1~0.offset)) (.cse1 (+ c_~f~0.offset (* c_~i~0 4))) (.cse3 (+ (* c_~q1_back~0 4) c_~q1~0.offset))) (and (forall ((v_ArrVal_506 (Array Int Int)) (v_ArrVal_505 (Array Int Int))) (let ((.cse0 (store (store |c_#memory_int| |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_505) |c_ULTIMATE.start_main_~#t4~0#1.base| v_ArrVal_506))) (let ((.cse2 (select .cse0 c_~q1~0.base))) (or (not (= (select (select .cse0 c_~f~0.base) .cse1) (select .cse2 .cse3))) (<= (+ (select (select .cse0 c_~q2~0.base) .cse4) c_~total~0 (select .cse2 .cse5)) 0))))) (forall ((v_ArrVal_506 (Array Int Int)) (v_ArrVal_505 (Array Int Int))) (let ((.cse6 (store (store |c_#memory_int| |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_505) |c_ULTIMATE.start_main_~#t4~0#1.base| v_ArrVal_506))) (let ((.cse7 (select .cse6 c_~q1~0.base))) (or (< 0 (+ (select (select .cse6 c_~q2~0.base) .cse4) c_~total~0 (select .cse7 .cse5) 1)) (not (= (select (select .cse6 c_~f~0.base) .cse1) (select .cse7 .cse3)))))))))) is different from false [2022-11-25 18:21:20,483 WARN L837 $PredicateComparison]: unable to prove that (or (not (<= 0 c_~q1_back~0)) (let ((.cse4 (+ (* c_~q1_front~0 4) c_~q1~0.offset)) (.cse5 (+ c_~q2~0.offset (* c_~q2_front~0 4))) (.cse1 (+ c_~f~0.offset (* c_~i~0 4))) (.cse3 (+ (* c_~q1_back~0 4) c_~q1~0.offset)) (.cse7 (+ (* c_~q2_back~0 4) c_~q2~0.offset)) (.cse8 (+ c_~f~0.offset (* c_~j~0 4)))) (and (forall ((v_ArrVal_504 (Array Int Int))) (let ((.cse6 (store |c_#memory_int| |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_504))) (or (forall ((v_ArrVal_506 (Array Int Int)) (v_ArrVal_505 (Array Int Int))) (let ((.cse0 (store (store .cse6 |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_505) |c_ULTIMATE.start_main_~#t4~0#1.base| v_ArrVal_506))) (let ((.cse2 (select .cse0 c_~q1~0.base))) (or (not (= (select (select .cse0 c_~f~0.base) .cse1) (select .cse2 .cse3))) (<= (+ (select .cse2 .cse4) c_~total~0 (select (select .cse0 c_~q2~0.base) .cse5)) 0))))) (not (= (+ (select (select .cse6 c_~q2~0.base) .cse7) (select (select .cse6 c_~f~0.base) .cse8)) 0))))) (forall ((v_ArrVal_504 (Array Int Int))) (let ((.cse11 (store |c_#memory_int| |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_504))) (or (forall ((v_ArrVal_506 (Array Int Int)) (v_ArrVal_505 (Array Int Int))) (let ((.cse10 (store (store .cse11 |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_505) |c_ULTIMATE.start_main_~#t4~0#1.base| v_ArrVal_506))) (let ((.cse9 (select .cse10 c_~q1~0.base))) (or (< 0 (+ (select .cse9 .cse4) c_~total~0 (select (select .cse10 c_~q2~0.base) .cse5) 1)) (not (= (select (select .cse10 c_~f~0.base) .cse1) (select .cse9 .cse3))))))) (not (= (+ (select (select .cse11 c_~q2~0.base) .cse7) (select (select .cse11 c_~f~0.base) .cse8)) 0))))))) (not (< c_~q2_back~0 c_~n2~0)) (not (< c_~q1_back~0 c_~n1~0)) (not (<= 0 c_~q1_front~0)) (not (< c_~q1_front~0 c_~n1~0)) (not (<= 0 c_~q2_back~0))) is different from false [2022-11-25 18:21:32,241 INFO L321 Elim1Store]: treesize reduction 27, result has 61.4 percent of original size [2022-11-25 18:21:32,241 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 2 case distinctions, treesize of input 355 treesize of output 181 [2022-11-25 18:21:32,258 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 18:21:32,868 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-25 18:21:32,872 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 629600 treesize of output 616272 [2022-11-25 18:21:35,346 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-25 18:21:35,348 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 615906 treesize of output 599414 [2022-11-25 18:21:37,522 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-25 18:21:37,526 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 596460 treesize of output 465474 [2022-11-25 18:21:39,719 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-25 18:21:39,722 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 465388 treesize of output 399938 [2022-11-25 18:21:42,199 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-25 18:21:42,203 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 402594 treesize of output 369398 [2022-11-25 18:21:44,650 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-25 18:21:44,653 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 303655 treesize of output 297015