./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/weaver/popl20-min-max-inc.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 2329fc70 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_398229c7-9a30-405c-b80d-48e060646f91/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_398229c7-9a30-405c-b80d-48e060646f91/bin/uautomizer-uyxdKDjOR8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_398229c7-9a30-405c-b80d-48e060646f91/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_398229c7-9a30-405c-b80d-48e060646f91/bin/uautomizer-uyxdKDjOR8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/popl20-min-max-inc.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_398229c7-9a30-405c-b80d-48e060646f91/bin/uautomizer-uyxdKDjOR8/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_398229c7-9a30-405c-b80d-48e060646f91/bin/uautomizer-uyxdKDjOR8 --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 24c46cfa0dbb54d68ea1c1d9e6e82d14a582b1d00782b6decedd8126f489ee67 --- 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-2329fc7 [2022-12-13 13:18:23,930 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 13:18:23,931 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 13:18:23,944 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 13:18:23,944 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 13:18:23,945 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 13:18:23,946 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 13:18:23,947 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 13:18:23,948 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 13:18:23,948 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 13:18:23,949 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 13:18:23,950 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 13:18:23,950 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 13:18:23,951 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 13:18:23,951 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 13:18:23,952 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 13:18:23,953 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 13:18:23,954 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 13:18:23,955 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 13:18:23,956 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 13:18:23,957 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 13:18:23,958 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 13:18:23,959 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 13:18:23,960 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 13:18:23,966 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 13:18:23,967 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 13:18:23,967 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 13:18:23,968 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 13:18:23,969 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 13:18:23,970 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 13:18:23,970 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 13:18:23,971 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 13:18:23,972 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 13:18:23,973 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 13:18:23,974 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 13:18:23,974 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 13:18:23,975 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 13:18:23,975 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 13:18:23,975 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 13:18:23,976 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 13:18:23,976 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 13:18:23,977 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_398229c7-9a30-405c-b80d-48e060646f91/bin/uautomizer-uyxdKDjOR8/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-12-13 13:18:24,000 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 13:18:24,000 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 13:18:24,000 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 13:18:24,001 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 13:18:24,001 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 13:18:24,001 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 13:18:24,002 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 13:18:24,002 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 13:18:24,002 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 13:18:24,003 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 13:18:24,003 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-13 13:18:24,003 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 13:18:24,003 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-13 13:18:24,003 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 13:18:24,003 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-13 13:18:24,003 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 13:18:24,004 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-13 13:18:24,004 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-13 13:18:24,004 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 13:18:24,004 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 13:18:24,004 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-13 13:18:24,004 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 13:18:24,004 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 13:18:24,005 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 13:18:24,005 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 13:18:24,005 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 13:18:24,005 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 13:18:24,005 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-13 13:18:24,005 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 13:18:24,005 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-13 13:18:24,006 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 13:18:24,006 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-13 13:18:24,006 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 13:18:24,006 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 13:18:24,006 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 13:18:24,006 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_398229c7-9a30-405c-b80d-48e060646f91/bin/uautomizer-uyxdKDjOR8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_398229c7-9a30-405c-b80d-48e060646f91/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 24c46cfa0dbb54d68ea1c1d9e6e82d14a582b1d00782b6decedd8126f489ee67 [2022-12-13 13:18:24,179 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 13:18:24,195 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 13:18:24,197 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 13:18:24,198 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 13:18:24,198 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 13:18:24,199 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_398229c7-9a30-405c-b80d-48e060646f91/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/weaver/popl20-min-max-inc.wvr.c [2022-12-13 13:18:26,724 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 13:18:26,879 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 13:18:26,880 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_398229c7-9a30-405c-b80d-48e060646f91/sv-benchmarks/c/weaver/popl20-min-max-inc.wvr.c [2022-12-13 13:18:26,884 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_398229c7-9a30-405c-b80d-48e060646f91/bin/uautomizer-uyxdKDjOR8/data/ce3fd7f79/54ee9d7397e54e6abd273a0e6bd0e8c9/FLAGbca179fcc [2022-12-13 13:18:27,300 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_398229c7-9a30-405c-b80d-48e060646f91/bin/uautomizer-uyxdKDjOR8/data/ce3fd7f79/54ee9d7397e54e6abd273a0e6bd0e8c9 [2022-12-13 13:18:27,302 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 13:18:27,303 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 13:18:27,304 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 13:18:27,304 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 13:18:27,306 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 13:18:27,307 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 01:18:27" (1/1) ... [2022-12-13 13:18:27,307 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@617f5fc8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:18:27, skipping insertion in model container [2022-12-13 13:18:27,308 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 01:18:27" (1/1) ... [2022-12-13 13:18:27,312 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 13:18:27,325 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 13:18:27,432 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 13:18:27,433 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 13:18:27,433 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 13:18:27,433 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 13:18:27,435 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 13:18:27,436 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 13:18:27,438 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 13:18:27,439 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 13:18:27,439 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 13:18:27,439 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 13:18:27,440 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 13:18:27,441 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 13:18:27,442 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 13:18:27,443 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 13:18:27,444 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 13:18:27,445 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 13:18:27,452 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_398229c7-9a30-405c-b80d-48e060646f91/sv-benchmarks/c/weaver/popl20-min-max-inc.wvr.c[3018,3031] [2022-12-13 13:18:27,458 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 13:18:27,465 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 13:18:27,474 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 13:18:27,474 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 13:18:27,474 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 13:18:27,475 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 13:18:27,475 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 13:18:27,476 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 13:18:27,476 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 13:18:27,476 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 13:18:27,477 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 13:18:27,477 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 13:18:27,477 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 13:18:27,478 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 13:18:27,479 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 13:18:27,479 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 13:18:27,480 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 13:18:27,480 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 13:18:27,484 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_398229c7-9a30-405c-b80d-48e060646f91/sv-benchmarks/c/weaver/popl20-min-max-inc.wvr.c[3018,3031] [2022-12-13 13:18:27,486 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 13:18:27,496 INFO L208 MainTranslator]: Completed translation [2022-12-13 13:18:27,496 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:18:27 WrapperNode [2022-12-13 13:18:27,496 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 13:18:27,497 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 13:18:27,497 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 13:18:27,497 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 13:18:27,502 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:18:27" (1/1) ... [2022-12-13 13:18:27,507 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:18:27" (1/1) ... [2022-12-13 13:18:27,522 INFO L138 Inliner]: procedures = 26, calls = 63, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 137 [2022-12-13 13:18:27,522 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 13:18:27,523 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 13:18:27,523 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 13:18:27,523 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 13:18:27,529 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:18:27" (1/1) ... [2022-12-13 13:18:27,529 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:18:27" (1/1) ... [2022-12-13 13:18:27,531 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:18:27" (1/1) ... [2022-12-13 13:18:27,532 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:18:27" (1/1) ... [2022-12-13 13:18:27,536 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:18:27" (1/1) ... [2022-12-13 13:18:27,539 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:18:27" (1/1) ... [2022-12-13 13:18:27,540 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:18:27" (1/1) ... [2022-12-13 13:18:27,541 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:18:27" (1/1) ... [2022-12-13 13:18:27,543 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 13:18:27,543 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 13:18:27,544 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 13:18:27,544 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 13:18:27,544 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:18:27" (1/1) ... [2022-12-13 13:18:27,549 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 13:18:27,557 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_398229c7-9a30-405c-b80d-48e060646f91/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 13:18:27,566 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_398229c7-9a30-405c-b80d-48e060646f91/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 13:18:27,568 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_398229c7-9a30-405c-b80d-48e060646f91/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 13:18:27,599 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 13:18:27,599 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-13 13:18:27,599 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-13 13:18:27,599 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-13 13:18:27,599 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-12-13 13:18:27,599 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-12-13 13:18:27,600 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-12-13 13:18:27,600 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-12-13 13:18:27,600 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-12-13 13:18:27,600 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-12-13 13:18:27,600 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2022-12-13 13:18:27,600 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2022-12-13 13:18:27,600 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-13 13:18:27,600 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-12-13 13:18:27,600 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-12-13 13:18:27,600 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-12-13 13:18:27,601 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 13:18:27,601 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 13:18:27,601 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-13 13:18:27,602 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-12-13 13:18:27,677 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 13:18:27,679 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 13:18:27,875 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 13:18:27,927 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 13:18:27,928 INFO L300 CfgBuilder]: Removed 4 assume(true) statements. [2022-12-13 13:18:27,930 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 01:18:27 BoogieIcfgContainer [2022-12-13 13:18:27,930 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 13:18:27,931 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 13:18:27,932 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 13:18:27,934 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 13:18:27,934 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 01:18:27" (1/3) ... [2022-12-13 13:18:27,935 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6f617a26 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 01:18:27, skipping insertion in model container [2022-12-13 13:18:27,935 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:18:27" (2/3) ... [2022-12-13 13:18:27,935 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6f617a26 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 01:18:27, skipping insertion in model container [2022-12-13 13:18:27,935 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 01:18:27" (3/3) ... [2022-12-13 13:18:27,936 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-min-max-inc.wvr.c [2022-12-13 13:18:27,942 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-12-13 13:18:27,950 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 13:18:27,950 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-13 13:18:27,950 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-13 13:18:28,006 INFO L144 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2022-12-13 13:18:28,042 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 173 places, 172 transitions, 376 flow [2022-12-13 13:18:28,108 INFO L130 PetriNetUnfolder]: 12/168 cut-off events. [2022-12-13 13:18:28,109 INFO L131 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2022-12-13 13:18:28,114 INFO L83 FinitePrefix]: Finished finitePrefix Result has 185 conditions, 168 events. 12/168 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 113 event pairs, 0 based on Foata normal form. 0/155 useless extension candidates. Maximal degree in co-relation 134. Up to 2 conditions per place. [2022-12-13 13:18:28,114 INFO L82 GeneralOperation]: Start removeDead. Operand has 173 places, 172 transitions, 376 flow [2022-12-13 13:18:28,119 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 156 places, 155 transitions, 334 flow [2022-12-13 13:18:28,123 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2022-12-13 13:18:28,133 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 156 places, 155 transitions, 334 flow [2022-12-13 13:18:28,135 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 156 places, 155 transitions, 334 flow [2022-12-13 13:18:28,136 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 156 places, 155 transitions, 334 flow [2022-12-13 13:18:28,171 INFO L130 PetriNetUnfolder]: 12/155 cut-off events. [2022-12-13 13:18:28,172 INFO L131 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2022-12-13 13:18:28,172 INFO L83 FinitePrefix]: Finished finitePrefix Result has 172 conditions, 155 events. 12/155 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 112 event pairs, 0 based on Foata normal form. 0/143 useless extension candidates. Maximal degree in co-relation 134. Up to 2 conditions per place. [2022-12-13 13:18:28,174 INFO L119 LiptonReduction]: Number of co-enabled transitions 2280 [2022-12-13 13:18:33,775 INFO L134 LiptonReduction]: Checked pairs total: 3442 [2022-12-13 13:18:33,775 INFO L136 LiptonReduction]: Total number of compositions: 146 [2022-12-13 13:18:33,788 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 13:18:33,793 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;@364f8394, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 13:18:33,793 INFO L358 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2022-12-13 13:18:33,801 INFO L130 PetriNetUnfolder]: 4/30 cut-off events. [2022-12-13 13:18:33,801 INFO L131 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2022-12-13 13:18:33,801 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 13:18:33,802 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] [2022-12-13 13:18:33,802 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)] === [2022-12-13 13:18:33,807 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:18:33,807 INFO L85 PathProgramCache]: Analyzing trace with hash 39158754, now seen corresponding path program 1 times [2022-12-13 13:18:33,814 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 13:18:33,814 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1959397071] [2022-12-13 13:18:33,814 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:18:33,814 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 13:18:33,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:18:34,159 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 13:18:34,159 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 13:18:34,160 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1959397071] [2022-12-13 13:18:34,160 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1959397071] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 13:18:34,160 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 13:18:34,160 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 13:18:34,162 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2029361874] [2022-12-13 13:18:34,162 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 13:18:34,168 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 13:18:34,169 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 13:18:34,185 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 13:18:34,186 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-12-13 13:18:34,218 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 145 out of 318 [2022-12-13 13:18:34,221 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 40 places, 31 transitions, 86 flow. Second operand has 4 states, 4 states have (on average 151.5) internal successors, (606), 4 states have internal predecessors, (606), 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) [2022-12-13 13:18:34,221 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 13:18:34,221 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 145 of 318 [2022-12-13 13:18:34,222 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 13:18:34,452 INFO L130 PetriNetUnfolder]: 1410/1888 cut-off events. [2022-12-13 13:18:34,453 INFO L131 PetriNetUnfolder]: For 103/103 co-relation queries the response was YES. [2022-12-13 13:18:34,456 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3978 conditions, 1888 events. 1410/1888 cut-off events. For 103/103 co-relation queries the response was YES. Maximal size of possible extension queue 108. Compared 7128 event pairs, 760 based on Foata normal form. 0/1413 useless extension candidates. Maximal degree in co-relation 3477. Up to 1542 conditions per place. [2022-12-13 13:18:34,463 INFO L137 encePairwiseOnDemand]: 314/318 looper letters, 42 selfloop transitions, 3 changer transitions 0/46 dead transitions. [2022-12-13 13:18:34,463 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 43 places, 46 transitions, 215 flow [2022-12-13 13:18:34,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 13:18:34,466 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-12-13 13:18:34,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 626 transitions. [2022-12-13 13:18:34,478 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4921383647798742 [2022-12-13 13:18:34,479 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 626 transitions. [2022-12-13 13:18:34,480 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 626 transitions. [2022-12-13 13:18:34,482 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 13:18:34,484 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 626 transitions. [2022-12-13 13:18:34,488 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 156.5) internal successors, (626), 4 states have internal predecessors, (626), 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) [2022-12-13 13:18:34,496 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 318.0) internal successors, (1590), 5 states have internal predecessors, (1590), 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) [2022-12-13 13:18:34,497 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 318.0) internal successors, (1590), 5 states have internal predecessors, (1590), 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) [2022-12-13 13:18:34,498 INFO L175 Difference]: Start difference. First operand has 40 places, 31 transitions, 86 flow. Second operand 4 states and 626 transitions. [2022-12-13 13:18:34,499 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 43 places, 46 transitions, 215 flow [2022-12-13 13:18:34,506 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 35 places, 46 transitions, 193 flow, removed 0 selfloop flow, removed 8 redundant places. [2022-12-13 13:18:34,508 INFO L231 Difference]: Finished difference. Result has 36 places, 32 transitions, 84 flow [2022-12-13 13:18:34,510 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=318, PETRI_DIFFERENCE_MINUEND_FLOW=70, PETRI_DIFFERENCE_MINUEND_PLACES=32, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=31, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=28, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=84, PETRI_PLACES=36, PETRI_TRANSITIONS=32} [2022-12-13 13:18:34,513 INFO L288 CegarLoopForPetriNet]: 40 programPoint places, -4 predicate places. [2022-12-13 13:18:34,514 INFO L495 AbstractCegarLoop]: Abstraction has has 36 places, 32 transitions, 84 flow [2022-12-13 13:18:34,514 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 151.5) internal successors, (606), 4 states have internal predecessors, (606), 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) [2022-12-13 13:18:34,514 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 13:18:34,514 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] [2022-12-13 13:18:34,515 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-13 13:18:34,515 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)] === [2022-12-13 13:18:34,516 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:18:34,516 INFO L85 PathProgramCache]: Analyzing trace with hash -701637166, now seen corresponding path program 1 times [2022-12-13 13:18:34,516 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 13:18:34,516 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1411130755] [2022-12-13 13:18:34,516 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:18:34,516 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 13:18:34,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:18:34,637 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 13:18:34,637 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 13:18:34,638 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1411130755] [2022-12-13 13:18:34,638 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1411130755] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 13:18:34,638 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 13:18:34,638 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 13:18:34,638 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1985755181] [2022-12-13 13:18:34,638 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 13:18:34,639 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 13:18:34,639 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 13:18:34,640 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 13:18:34,640 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-12-13 13:18:34,666 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 145 out of 318 [2022-12-13 13:18:34,667 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 36 places, 32 transitions, 84 flow. Second operand has 4 states, 4 states have (on average 152.0) internal successors, (608), 4 states have internal predecessors, (608), 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) [2022-12-13 13:18:34,667 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 13:18:34,667 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 145 of 318 [2022-12-13 13:18:34,667 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 13:18:34,888 INFO L130 PetriNetUnfolder]: 1718/2336 cut-off events. [2022-12-13 13:18:34,888 INFO L131 PetriNetUnfolder]: For 543/543 co-relation queries the response was YES. [2022-12-13 13:18:34,891 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5313 conditions, 2336 events. 1718/2336 cut-off events. For 543/543 co-relation queries the response was YES. Maximal size of possible extension queue 84. Compared 8092 event pairs, 977 based on Foata normal form. 0/1943 useless extension candidates. Maximal degree in co-relation 1800. Up to 1790 conditions per place. [2022-12-13 13:18:34,906 INFO L137 encePairwiseOnDemand]: 314/318 looper letters, 47 selfloop transitions, 3 changer transitions 0/50 dead transitions. [2022-12-13 13:18:34,906 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 39 places, 50 transitions, 233 flow [2022-12-13 13:18:34,906 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 13:18:34,906 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-12-13 13:18:34,908 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 629 transitions. [2022-12-13 13:18:34,908 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4944968553459119 [2022-12-13 13:18:34,908 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 629 transitions. [2022-12-13 13:18:34,908 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 629 transitions. [2022-12-13 13:18:34,908 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 13:18:34,909 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 629 transitions. [2022-12-13 13:18:34,910 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 157.25) internal successors, (629), 4 states have internal predecessors, (629), 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) [2022-12-13 13:18:34,911 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 318.0) internal successors, (1590), 5 states have internal predecessors, (1590), 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) [2022-12-13 13:18:34,912 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 318.0) internal successors, (1590), 5 states have internal predecessors, (1590), 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) [2022-12-13 13:18:34,912 INFO L175 Difference]: Start difference. First operand has 36 places, 32 transitions, 84 flow. Second operand 4 states and 629 transitions. [2022-12-13 13:18:34,912 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 39 places, 50 transitions, 233 flow [2022-12-13 13:18:34,913 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 37 places, 50 transitions, 223 flow, removed 2 selfloop flow, removed 2 redundant places. [2022-12-13 13:18:34,913 INFO L231 Difference]: Finished difference. Result has 38 places, 33 transitions, 92 flow [2022-12-13 13:18:34,913 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=318, PETRI_DIFFERENCE_MINUEND_FLOW=78, PETRI_DIFFERENCE_MINUEND_PLACES=34, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=32, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=29, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=92, PETRI_PLACES=38, PETRI_TRANSITIONS=33} [2022-12-13 13:18:34,914 INFO L288 CegarLoopForPetriNet]: 40 programPoint places, -2 predicate places. [2022-12-13 13:18:34,914 INFO L495 AbstractCegarLoop]: Abstraction has has 38 places, 33 transitions, 92 flow [2022-12-13 13:18:34,914 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 152.0) internal successors, (608), 4 states have internal predecessors, (608), 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) [2022-12-13 13:18:34,914 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 13:18:34,914 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] [2022-12-13 13:18:34,914 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-13 13:18:34,915 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)] === [2022-12-13 13:18:34,915 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:18:34,915 INFO L85 PathProgramCache]: Analyzing trace with hash -637405416, now seen corresponding path program 1 times [2022-12-13 13:18:34,915 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 13:18:34,915 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1415617023] [2022-12-13 13:18:34,915 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:18:34,916 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 13:18:34,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:18:34,980 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-13 13:18:34,980 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 13:18:34,980 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1415617023] [2022-12-13 13:18:34,981 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1415617023] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 13:18:34,981 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 13:18:34,981 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 13:18:34,981 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [56014708] [2022-12-13 13:18:34,981 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 13:18:34,981 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 13:18:34,981 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 13:18:34,982 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 13:18:34,982 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-12-13 13:18:35,001 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 145 out of 318 [2022-12-13 13:18:35,002 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 38 places, 33 transitions, 92 flow. Second operand has 4 states, 4 states have (on average 152.0) internal successors, (608), 4 states have internal predecessors, (608), 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) [2022-12-13 13:18:35,003 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 13:18:35,003 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 145 of 318 [2022-12-13 13:18:35,003 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 13:18:35,229 INFO L130 PetriNetUnfolder]: 1632/2234 cut-off events. [2022-12-13 13:18:35,230 INFO L131 PetriNetUnfolder]: For 543/698 co-relation queries the response was YES. [2022-12-13 13:18:35,233 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5582 conditions, 2234 events. 1632/2234 cut-off events. For 543/698 co-relation queries the response was YES. Maximal size of possible extension queue 96. Compared 8452 event pairs, 977 based on Foata normal form. 155/1997 useless extension candidates. Maximal degree in co-relation 1676. Up to 1790 conditions per place. [2022-12-13 13:18:35,239 INFO L137 encePairwiseOnDemand]: 314/318 looper letters, 46 selfloop transitions, 3 changer transitions 0/50 dead transitions. [2022-12-13 13:18:35,240 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 41 places, 50 transitions, 240 flow [2022-12-13 13:18:35,240 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 13:18:35,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-12-13 13:18:35,241 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 626 transitions. [2022-12-13 13:18:35,241 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4921383647798742 [2022-12-13 13:18:35,241 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 626 transitions. [2022-12-13 13:18:35,241 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 626 transitions. [2022-12-13 13:18:35,242 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 13:18:35,242 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 626 transitions. [2022-12-13 13:18:35,242 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 156.5) internal successors, (626), 4 states have internal predecessors, (626), 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) [2022-12-13 13:18:35,244 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 318.0) internal successors, (1590), 5 states have internal predecessors, (1590), 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) [2022-12-13 13:18:35,244 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 318.0) internal successors, (1590), 5 states have internal predecessors, (1590), 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) [2022-12-13 13:18:35,244 INFO L175 Difference]: Start difference. First operand has 38 places, 33 transitions, 92 flow. Second operand 4 states and 626 transitions. [2022-12-13 13:18:35,245 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 41 places, 50 transitions, 240 flow [2022-12-13 13:18:35,245 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 39 places, 50 transitions, 231 flow, removed 2 selfloop flow, removed 2 redundant places. [2022-12-13 13:18:35,246 INFO L231 Difference]: Finished difference. Result has 40 places, 34 transitions, 100 flow [2022-12-13 13:18:35,246 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=318, PETRI_DIFFERENCE_MINUEND_FLOW=86, PETRI_DIFFERENCE_MINUEND_PLACES=36, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=33, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=100, PETRI_PLACES=40, PETRI_TRANSITIONS=34} [2022-12-13 13:18:35,247 INFO L288 CegarLoopForPetriNet]: 40 programPoint places, 0 predicate places. [2022-12-13 13:18:35,247 INFO L495 AbstractCegarLoop]: Abstraction has has 40 places, 34 transitions, 100 flow [2022-12-13 13:18:35,247 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 152.0) internal successors, (608), 4 states have internal predecessors, (608), 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) [2022-12-13 13:18:35,247 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 13:18:35,247 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] [2022-12-13 13:18:35,247 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-13 13:18:35,247 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)] === [2022-12-13 13:18:35,248 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:18:35,248 INFO L85 PathProgramCache]: Analyzing trace with hash 1825777184, now seen corresponding path program 1 times [2022-12-13 13:18:35,248 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 13:18:35,248 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1610561370] [2022-12-13 13:18:35,248 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:18:35,248 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 13:18:35,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:18:35,327 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-12-13 13:18:35,327 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 13:18:35,328 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1610561370] [2022-12-13 13:18:35,328 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1610561370] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 13:18:35,328 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 13:18:35,328 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 13:18:35,328 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1699659090] [2022-12-13 13:18:35,328 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 13:18:35,329 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 13:18:35,329 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 13:18:35,329 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 13:18:35,329 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 13:18:35,344 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 146 out of 318 [2022-12-13 13:18:35,345 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 40 places, 34 transitions, 100 flow. Second operand has 3 states, 3 states have (on average 155.66666666666666) internal successors, (467), 3 states have internal predecessors, (467), 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) [2022-12-13 13:18:35,345 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 13:18:35,345 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 146 of 318 [2022-12-13 13:18:35,345 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 13:18:35,551 INFO L130 PetriNetUnfolder]: 1632/2235 cut-off events. [2022-12-13 13:18:35,552 INFO L131 PetriNetUnfolder]: For 899/1054 co-relation queries the response was YES. [2022-12-13 13:18:35,554 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5797 conditions, 2235 events. 1632/2235 cut-off events. For 899/1054 co-relation queries the response was YES. Maximal size of possible extension queue 96. Compared 8196 event pairs, 1243 based on Foata normal form. 155/1994 useless extension candidates. Maximal degree in co-relation 1879. Up to 2223 conditions per place. [2022-12-13 13:18:35,559 INFO L137 encePairwiseOnDemand]: 315/318 looper letters, 32 selfloop transitions, 2 changer transitions 0/35 dead transitions. [2022-12-13 13:18:35,560 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 42 places, 35 transitions, 170 flow [2022-12-13 13:18:35,560 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 13:18:35,560 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 13:18:35,561 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 470 transitions. [2022-12-13 13:18:35,561 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.49266247379454925 [2022-12-13 13:18:35,561 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 470 transitions. [2022-12-13 13:18:35,561 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 470 transitions. [2022-12-13 13:18:35,561 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 13:18:35,561 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 470 transitions. [2022-12-13 13:18:35,562 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 156.66666666666666) internal successors, (470), 3 states have internal predecessors, (470), 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) [2022-12-13 13:18:35,563 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 318.0) internal successors, (1272), 4 states have internal predecessors, (1272), 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) [2022-12-13 13:18:35,563 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 318.0) internal successors, (1272), 4 states have internal predecessors, (1272), 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) [2022-12-13 13:18:35,564 INFO L175 Difference]: Start difference. First operand has 40 places, 34 transitions, 100 flow. Second operand 3 states and 470 transitions. [2022-12-13 13:18:35,564 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 42 places, 35 transitions, 170 flow [2022-12-13 13:18:35,564 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 40 places, 35 transitions, 164 flow, removed 1 selfloop flow, removed 2 redundant places. [2022-12-13 13:18:35,565 INFO L231 Difference]: Finished difference. Result has 41 places, 35 transitions, 106 flow [2022-12-13 13:18:35,565 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=318, PETRI_DIFFERENCE_MINUEND_FLOW=94, PETRI_DIFFERENCE_MINUEND_PLACES=38, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=34, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=32, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=106, PETRI_PLACES=41, PETRI_TRANSITIONS=35} [2022-12-13 13:18:35,565 INFO L288 CegarLoopForPetriNet]: 40 programPoint places, 1 predicate places. [2022-12-13 13:18:35,565 INFO L495 AbstractCegarLoop]: Abstraction has has 41 places, 35 transitions, 106 flow [2022-12-13 13:18:35,566 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 155.66666666666666) internal successors, (467), 3 states have internal predecessors, (467), 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) [2022-12-13 13:18:35,566 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 13:18:35,566 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] [2022-12-13 13:18:35,566 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-13 13:18:35,566 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)] === [2022-12-13 13:18:35,566 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:18:35,566 INFO L85 PathProgramCache]: Analyzing trace with hash -2034346916, now seen corresponding path program 1 times [2022-12-13 13:18:35,567 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 13:18:35,567 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1802380395] [2022-12-13 13:18:35,567 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:18:35,567 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 13:18:35,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:18:36,139 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-12-13 13:18:36,139 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 13:18:36,139 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1802380395] [2022-12-13 13:18:36,139 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1802380395] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 13:18:36,140 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1137802378] [2022-12-13 13:18:36,140 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:18:36,140 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 13:18:36,140 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_398229c7-9a30-405c-b80d-48e060646f91/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 13:18:36,141 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_398229c7-9a30-405c-b80d-48e060646f91/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 13:18:36,143 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_398229c7-9a30-405c-b80d-48e060646f91/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-12-13 13:18:36,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:18:36,237 INFO L263 TraceCheckSpWp]: Trace formula consists of 290 conjuncts, 37 conjunts are in the unsatisfiable core [2022-12-13 13:18:36,242 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 13:18:36,420 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 13:18:36,426 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 21 [2022-12-13 13:18:36,526 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 19 [2022-12-13 13:18:36,570 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 28 [2022-12-13 13:18:36,620 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-13 13:18:36,620 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 13:18:37,270 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-13 13:18:37,270 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1137802378] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 13:18:37,271 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-13 13:18:37,271 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 12, 10] total 26 [2022-12-13 13:18:37,271 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1235668698] [2022-12-13 13:18:37,271 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-13 13:18:37,271 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2022-12-13 13:18:37,271 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 13:18:37,272 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2022-12-13 13:18:37,272 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=141, Invalid=556, Unknown=5, NotChecked=0, Total=702 [2022-12-13 13:18:38,461 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 110 out of 318 [2022-12-13 13:18:38,465 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 41 places, 35 transitions, 106 flow. Second operand has 27 states, 27 states have (on average 113.25925925925925) internal successors, (3058), 27 states have internal predecessors, (3058), 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) [2022-12-13 13:18:38,465 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 13:18:38,465 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 110 of 318 [2022-12-13 13:18:38,465 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 13:18:45,340 INFO L130 PetriNetUnfolder]: 21572/29657 cut-off events. [2022-12-13 13:18:45,341 INFO L131 PetriNetUnfolder]: For 8181/8181 co-relation queries the response was YES. [2022-12-13 13:18:45,366 INFO L83 FinitePrefix]: Finished finitePrefix Result has 76495 conditions, 29657 events. 21572/29657 cut-off events. For 8181/8181 co-relation queries the response was YES. Maximal size of possible extension queue 1090. Compared 166888 event pairs, 1180 based on Foata normal form. 16/23517 useless extension candidates. Maximal degree in co-relation 76481. Up to 6298 conditions per place. [2022-12-13 13:18:45,413 INFO L137 encePairwiseOnDemand]: 305/318 looper letters, 408 selfloop transitions, 128 changer transitions 529/1065 dead transitions. [2022-12-13 13:18:45,414 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 106 places, 1065 transitions, 5303 flow [2022-12-13 13:18:45,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 66 states. [2022-12-13 13:18:45,414 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 66 states. [2022-12-13 13:18:45,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 8240 transitions. [2022-12-13 13:18:45,425 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.39260529826567564 [2022-12-13 13:18:45,425 INFO L72 ComplementDD]: Start complementDD. Operand 66 states and 8240 transitions. [2022-12-13 13:18:45,426 INFO L73 IsDeterministic]: Start isDeterministic. Operand 66 states and 8240 transitions. [2022-12-13 13:18:45,428 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 13:18:45,429 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 66 states and 8240 transitions. [2022-12-13 13:18:45,438 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 67 states, 66 states have (on average 124.84848484848484) internal successors, (8240), 66 states have internal predecessors, (8240), 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) [2022-12-13 13:18:45,455 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 67 states, 67 states have (on average 318.0) internal successors, (21306), 67 states have internal predecessors, (21306), 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) [2022-12-13 13:18:45,460 INFO L81 ComplementDD]: Finished complementDD. Result has 67 states, 67 states have (on average 318.0) internal successors, (21306), 67 states have internal predecessors, (21306), 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) [2022-12-13 13:18:45,460 INFO L175 Difference]: Start difference. First operand has 41 places, 35 transitions, 106 flow. Second operand 66 states and 8240 transitions. [2022-12-13 13:18:45,460 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 106 places, 1065 transitions, 5303 flow [2022-12-13 13:18:45,556 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 105 places, 1065 transitions, 5299 flow, removed 1 selfloop flow, removed 1 redundant places. [2022-12-13 13:18:45,561 INFO L231 Difference]: Finished difference. Result has 160 places, 187 transitions, 1299 flow [2022-12-13 13:18:45,562 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=318, PETRI_DIFFERENCE_MINUEND_FLOW=102, PETRI_DIFFERENCE_MINUEND_PLACES=40, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=35, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=66, PETRI_FLOW=1299, PETRI_PLACES=160, PETRI_TRANSITIONS=187} [2022-12-13 13:18:45,562 INFO L288 CegarLoopForPetriNet]: 40 programPoint places, 120 predicate places. [2022-12-13 13:18:45,562 INFO L495 AbstractCegarLoop]: Abstraction has has 160 places, 187 transitions, 1299 flow [2022-12-13 13:18:45,563 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 27 states have (on average 113.25925925925925) internal successors, (3058), 27 states have internal predecessors, (3058), 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) [2022-12-13 13:18:45,563 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 13:18:45,563 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] [2022-12-13 13:18:45,569 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_398229c7-9a30-405c-b80d-48e060646f91/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-12-13 13:18:45,764 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_398229c7-9a30-405c-b80d-48e060646f91/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 13:18:45,766 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)] === [2022-12-13 13:18:45,767 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:18:45,767 INFO L85 PathProgramCache]: Analyzing trace with hash 122790490, now seen corresponding path program 2 times [2022-12-13 13:18:45,768 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 13:18:45,768 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [19554171] [2022-12-13 13:18:45,769 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:18:45,769 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 13:18:45,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:18:46,043 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-12-13 13:18:46,043 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 13:18:46,043 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [19554171] [2022-12-13 13:18:46,044 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [19554171] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 13:18:46,044 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 13:18:46,044 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 13:18:46,044 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1176016377] [2022-12-13 13:18:46,044 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 13:18:46,045 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 13:18:46,045 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 13:18:46,045 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 13:18:46,045 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-13 13:18:46,054 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 146 out of 318 [2022-12-13 13:18:46,055 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 160 places, 187 transitions, 1299 flow. Second operand has 4 states, 4 states have (on average 153.5) internal successors, (614), 4 states have internal predecessors, (614), 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) [2022-12-13 13:18:46,055 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 13:18:46,055 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 146 of 318 [2022-12-13 13:18:46,055 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 13:18:48,986 INFO L130 PetriNetUnfolder]: 15424/21639 cut-off events. [2022-12-13 13:18:48,986 INFO L131 PetriNetUnfolder]: For 629953/632153 co-relation queries the response was YES. [2022-12-13 13:18:49,067 INFO L83 FinitePrefix]: Finished finitePrefix Result has 138568 conditions, 21639 events. 15424/21639 cut-off events. For 629953/632153 co-relation queries the response was YES. Maximal size of possible extension queue 927. Compared 124956 event pairs, 2169 based on Foata normal form. 1576/22851 useless extension candidates. Maximal degree in co-relation 138494. Up to 12938 conditions per place. [2022-12-13 13:18:49,119 INFO L137 encePairwiseOnDemand]: 314/318 looper letters, 151 selfloop transitions, 6 changer transitions 282/441 dead transitions. [2022-12-13 13:18:49,119 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 132 places, 441 transitions, 4055 flow [2022-12-13 13:18:49,119 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 13:18:49,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-12-13 13:18:49,120 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 802 transitions. [2022-12-13 13:18:49,120 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5044025157232704 [2022-12-13 13:18:49,121 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 802 transitions. [2022-12-13 13:18:49,121 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 802 transitions. [2022-12-13 13:18:49,121 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 13:18:49,121 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 802 transitions. [2022-12-13 13:18:49,122 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 160.4) internal successors, (802), 5 states have internal predecessors, (802), 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) [2022-12-13 13:18:49,123 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 318.0) internal successors, (1908), 6 states have internal predecessors, (1908), 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) [2022-12-13 13:18:49,124 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 318.0) internal successors, (1908), 6 states have internal predecessors, (1908), 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) [2022-12-13 13:18:49,124 INFO L175 Difference]: Start difference. First operand has 160 places, 187 transitions, 1299 flow. Second operand 5 states and 802 transitions. [2022-12-13 13:18:49,124 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 132 places, 441 transitions, 4055 flow [2022-12-13 13:18:50,414 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 105 places, 441 transitions, 3836 flow, removed 109 selfloop flow, removed 27 redundant places. [2022-12-13 13:18:50,416 INFO L231 Difference]: Finished difference. Result has 107 places, 122 transitions, 782 flow [2022-12-13 13:18:50,417 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=318, PETRI_DIFFERENCE_MINUEND_FLOW=1208, PETRI_DIFFERENCE_MINUEND_PLACES=101, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=187, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=181, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=782, PETRI_PLACES=107, PETRI_TRANSITIONS=122} [2022-12-13 13:18:50,417 INFO L288 CegarLoopForPetriNet]: 40 programPoint places, 67 predicate places. [2022-12-13 13:18:50,417 INFO L495 AbstractCegarLoop]: Abstraction has has 107 places, 122 transitions, 782 flow [2022-12-13 13:18:50,417 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 153.5) internal successors, (614), 4 states have internal predecessors, (614), 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) [2022-12-13 13:18:50,417 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 13:18:50,418 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] [2022-12-13 13:18:50,418 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-12-13 13:18:50,418 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)] === [2022-12-13 13:18:50,418 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:18:50,418 INFO L85 PathProgramCache]: Analyzing trace with hash 1476848334, now seen corresponding path program 3 times [2022-12-13 13:18:50,418 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 13:18:50,418 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [56119774] [2022-12-13 13:18:50,418 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:18:50,418 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 13:18:50,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:18:50,809 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-13 13:18:50,809 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 13:18:50,809 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [56119774] [2022-12-13 13:18:50,809 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [56119774] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 13:18:50,809 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1152122554] [2022-12-13 13:18:50,810 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-12-13 13:18:50,810 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 13:18:50,810 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_398229c7-9a30-405c-b80d-48e060646f91/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 13:18:50,811 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_398229c7-9a30-405c-b80d-48e060646f91/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 13:18:50,812 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_398229c7-9a30-405c-b80d-48e060646f91/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-12-13 13:18:51,108 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2022-12-13 13:18:51,108 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-13 13:18:51,110 INFO L263 TraceCheckSpWp]: Trace formula consists of 290 conjuncts, 37 conjunts are in the unsatisfiable core [2022-12-13 13:18:51,113 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 13:18:51,181 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 11 treesize of output 7 [2022-12-13 13:18:51,236 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 13:18:51,236 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2022-12-13 13:18:51,305 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2022-12-13 13:18:51,331 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-13 13:18:51,331 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 13:18:59,811 WARN L837 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_282 (Array Int Int))) (let ((.cse0 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t4~0#1.base| v_ArrVal_282) c_~A~0.base) c_~A~0.offset))) (or (<= 2147483647 .cse0) (<= (select (select |c_#memory_int| c_~A~0.base) c_~A~0.offset) (+ .cse0 1))))) is different from false [2022-12-13 13:18:59,821 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-13 13:18:59,821 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 58 treesize of output 45 [2022-12-13 13:18:59,825 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 78 treesize of output 72 [2022-12-13 13:18:59,831 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 28 [2022-12-13 13:18:59,834 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 27 [2022-12-13 13:18:59,864 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-13 13:18:59,864 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1152122554] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 13:18:59,864 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-13 13:18:59,864 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 10, 11] total 28 [2022-12-13 13:18:59,864 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [335669118] [2022-12-13 13:18:59,865 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-13 13:18:59,865 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2022-12-13 13:18:59,865 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 13:18:59,865 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2022-12-13 13:18:59,866 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=146, Invalid=658, Unknown=12, NotChecked=54, Total=870 [2022-12-13 13:18:59,991 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 106 out of 318 [2022-12-13 13:18:59,994 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 107 places, 122 transitions, 782 flow. Second operand has 30 states, 30 states have (on average 108.9) internal successors, (3267), 30 states have internal predecessors, (3267), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:18:59,994 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 13:18:59,994 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 106 of 318 [2022-12-13 13:18:59,994 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 13:19:10,637 INFO L130 PetriNetUnfolder]: 32742/45113 cut-off events. [2022-12-13 13:19:10,637 INFO L131 PetriNetUnfolder]: For 1082502/1082502 co-relation queries the response was YES. [2022-12-13 13:19:10,784 INFO L83 FinitePrefix]: Finished finitePrefix Result has 282109 conditions, 45113 events. 32742/45113 cut-off events. For 1082502/1082502 co-relation queries the response was YES. Maximal size of possible extension queue 1639. Compared 270178 event pairs, 1804 based on Foata normal form. 25/45137 useless extension candidates. Maximal degree in co-relation 282058. Up to 9959 conditions per place. [2022-12-13 13:19:10,877 INFO L137 encePairwiseOnDemand]: 305/318 looper letters, 501 selfloop transitions, 221 changer transitions 964/1686 dead transitions. [2022-12-13 13:19:10,878 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 170 places, 1686 transitions, 15908 flow [2022-12-13 13:19:10,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 80 states. [2022-12-13 13:19:10,878 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 80 states. [2022-12-13 13:19:10,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 9494 transitions. [2022-12-13 13:19:10,887 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.37319182389937106 [2022-12-13 13:19:10,887 INFO L72 ComplementDD]: Start complementDD. Operand 80 states and 9494 transitions. [2022-12-13 13:19:10,887 INFO L73 IsDeterministic]: Start isDeterministic. Operand 80 states and 9494 transitions. [2022-12-13 13:19:10,889 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 13:19:10,889 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 80 states and 9494 transitions. [2022-12-13 13:19:10,899 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 81 states, 80 states have (on average 118.675) internal successors, (9494), 80 states have internal predecessors, (9494), 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) [2022-12-13 13:19:10,919 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 81 states, 81 states have (on average 318.0) internal successors, (25758), 81 states have internal predecessors, (25758), 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) [2022-12-13 13:19:10,925 INFO L81 ComplementDD]: Finished complementDD. Result has 81 states, 81 states have (on average 318.0) internal successors, (25758), 81 states have internal predecessors, (25758), 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) [2022-12-13 13:19:10,925 INFO L175 Difference]: Start difference. First operand has 107 places, 122 transitions, 782 flow. Second operand 80 states and 9494 transitions. [2022-12-13 13:19:10,925 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 170 places, 1686 transitions, 15908 flow [2022-12-13 13:19:19,282 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 155 places, 1686 transitions, 13648 flow, removed 1065 selfloop flow, removed 15 redundant places. [2022-12-13 13:19:19,289 INFO L231 Difference]: Finished difference. Result has 222 places, 318 transitions, 3463 flow [2022-12-13 13:19:19,290 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=318, PETRI_DIFFERENCE_MINUEND_FLOW=718, PETRI_DIFFERENCE_MINUEND_PLACES=76, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=122, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=50, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=51, PETRI_DIFFERENCE_SUBTRAHEND_STATES=80, PETRI_FLOW=3463, PETRI_PLACES=222, PETRI_TRANSITIONS=318} [2022-12-13 13:19:19,290 INFO L288 CegarLoopForPetriNet]: 40 programPoint places, 182 predicate places. [2022-12-13 13:19:19,290 INFO L495 AbstractCegarLoop]: Abstraction has has 222 places, 318 transitions, 3463 flow [2022-12-13 13:19:19,291 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 108.9) internal successors, (3267), 30 states have internal predecessors, (3267), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:19:19,291 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 13:19:19,291 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] [2022-12-13 13:19:19,295 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_398229c7-9a30-405c-b80d-48e060646f91/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-12-13 13:19:19,492 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_398229c7-9a30-405c-b80d-48e060646f91/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 13:19:19,493 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)] === [2022-12-13 13:19:19,494 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:19:19,494 INFO L85 PathProgramCache]: Analyzing trace with hash -155322978, now seen corresponding path program 4 times [2022-12-13 13:19:19,495 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 13:19:19,495 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1406448816] [2022-12-13 13:19:19,495 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:19:19,496 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 13:19:19,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:19:19,928 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-13 13:19:19,928 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 13:19:19,928 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1406448816] [2022-12-13 13:19:19,928 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1406448816] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 13:19:19,929 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1977436321] [2022-12-13 13:19:19,929 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-12-13 13:19:19,929 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 13:19:19,929 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_398229c7-9a30-405c-b80d-48e060646f91/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 13:19:19,930 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_398229c7-9a30-405c-b80d-48e060646f91/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 13:19:19,931 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_398229c7-9a30-405c-b80d-48e060646f91/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-12-13 13:19:20,022 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-12-13 13:19:20,022 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-13 13:19:20,024 INFO L263 TraceCheckSpWp]: Trace formula consists of 290 conjuncts, 30 conjunts are in the unsatisfiable core [2022-12-13 13:19:20,026 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 13:19:20,155 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 13:19:20,155 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2022-12-13 13:19:20,178 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 13:19:20,179 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2022-12-13 13:19:20,231 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2022-12-13 13:19:20,266 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-13 13:19:20,267 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 13:19:24,743 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 113 treesize of output 97 [2022-12-13 13:19:24,746 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 93 treesize of output 85 [2022-12-13 13:19:24,750 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 49 treesize of output 45 [2022-12-13 13:19:24,820 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 0 refuted. 1 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-13 13:19:24,820 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1977436321] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 13:19:24,820 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-13 13:19:24,820 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 10, 11] total 28 [2022-12-13 13:19:24,821 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [705478770] [2022-12-13 13:19:24,821 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-13 13:19:24,821 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2022-12-13 13:19:24,821 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 13:19:24,822 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2022-12-13 13:19:24,822 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=152, Invalid=696, Unknown=22, NotChecked=0, Total=870 [2022-12-13 13:19:25,188 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 108 out of 318 [2022-12-13 13:19:25,190 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 222 places, 318 transitions, 3463 flow. Second operand has 30 states, 30 states have (on average 110.9) internal successors, (3327), 30 states have internal predecessors, (3327), 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) [2022-12-13 13:19:25,191 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 13:19:25,191 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 108 of 318 [2022-12-13 13:19:25,191 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 13:19:37,014 INFO L130 PetriNetUnfolder]: 37840/53073 cut-off events. [2022-12-13 13:19:37,014 INFO L131 PetriNetUnfolder]: For 4799428/4803003 co-relation queries the response was YES. [2022-12-13 13:19:37,477 INFO L83 FinitePrefix]: Finished finitePrefix Result has 550794 conditions, 53073 events. 37840/53073 cut-off events. For 4799428/4803003 co-relation queries the response was YES. Maximal size of possible extension queue 2171. Compared 343055 event pairs, 3980 based on Foata normal form. 2017/54311 useless extension candidates. Maximal degree in co-relation 550689. Up to 13658 conditions per place. [2022-12-13 13:19:37,684 INFO L137 encePairwiseOnDemand]: 307/318 looper letters, 369 selfloop transitions, 253 changer transitions 421/1062 dead transitions. [2022-12-13 13:19:37,684 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 210 places, 1062 transitions, 15540 flow [2022-12-13 13:19:37,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-12-13 13:19:37,684 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2022-12-13 13:19:37,687 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 4474 transitions. [2022-12-13 13:19:37,688 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.38024817270100286 [2022-12-13 13:19:37,688 INFO L72 ComplementDD]: Start complementDD. Operand 37 states and 4474 transitions. [2022-12-13 13:19:37,688 INFO L73 IsDeterministic]: Start isDeterministic. Operand 37 states and 4474 transitions. [2022-12-13 13:19:37,689 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 13:19:37,689 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 37 states and 4474 transitions. [2022-12-13 13:19:37,693 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 38 states, 37 states have (on average 120.91891891891892) internal successors, (4474), 37 states have internal predecessors, (4474), 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) [2022-12-13 13:19:37,700 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 38 states, 38 states have (on average 318.0) internal successors, (12084), 38 states have internal predecessors, (12084), 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) [2022-12-13 13:19:37,701 INFO L81 ComplementDD]: Finished complementDD. Result has 38 states, 38 states have (on average 318.0) internal successors, (12084), 38 states have internal predecessors, (12084), 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) [2022-12-13 13:19:37,701 INFO L175 Difference]: Start difference. First operand has 222 places, 318 transitions, 3463 flow. Second operand 37 states and 4474 transitions. [2022-12-13 13:19:37,701 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 210 places, 1062 transitions, 15540 flow [2022-12-13 13:20:03,173 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 172 places, 1062 transitions, 12858 flow, removed 1255 selfloop flow, removed 38 redundant places. [2022-12-13 13:20:03,180 INFO L231 Difference]: Finished difference. Result has 203 places, 409 transitions, 5519 flow [2022-12-13 13:20:03,180 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=318, PETRI_DIFFERENCE_MINUEND_FLOW=3101, PETRI_DIFFERENCE_MINUEND_PLACES=136, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=318, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=167, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=126, PETRI_DIFFERENCE_SUBTRAHEND_STATES=37, PETRI_FLOW=5519, PETRI_PLACES=203, PETRI_TRANSITIONS=409} [2022-12-13 13:20:03,181 INFO L288 CegarLoopForPetriNet]: 40 programPoint places, 163 predicate places. [2022-12-13 13:20:03,181 INFO L495 AbstractCegarLoop]: Abstraction has has 203 places, 409 transitions, 5519 flow [2022-12-13 13:20:03,181 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 110.9) internal successors, (3327), 30 states have internal predecessors, (3327), 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) [2022-12-13 13:20:03,182 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 13:20:03,182 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] [2022-12-13 13:20:03,186 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_398229c7-9a30-405c-b80d-48e060646f91/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-12-13 13:20:03,382 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_398229c7-9a30-405c-b80d-48e060646f91/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2022-12-13 13:20:03,383 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)] === [2022-12-13 13:20:03,384 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:20:03,384 INFO L85 PathProgramCache]: Analyzing trace with hash -673998874, now seen corresponding path program 5 times [2022-12-13 13:20:03,384 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 13:20:03,385 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1540026089] [2022-12-13 13:20:03,385 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:20:03,385 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 13:20:03,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:20:03,556 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-12-13 13:20:03,556 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 13:20:03,556 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1540026089] [2022-12-13 13:20:03,557 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1540026089] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 13:20:03,557 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 13:20:03,557 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 13:20:03,557 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1431914790] [2022-12-13 13:20:03,557 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 13:20:03,557 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 13:20:03,557 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 13:20:03,558 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 13:20:03,558 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-13 13:20:03,569 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 146 out of 318 [2022-12-13 13:20:03,569 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 203 places, 409 transitions, 5519 flow. Second operand has 4 states, 4 states have (on average 153.5) internal successors, (614), 4 states have internal predecessors, (614), 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) [2022-12-13 13:20:03,569 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 13:20:03,570 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 146 of 318 [2022-12-13 13:20:03,570 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 13:20:12,048 INFO L130 PetriNetUnfolder]: 33074/46862 cut-off events. [2022-12-13 13:20:12,048 INFO L131 PetriNetUnfolder]: For 3412772/3416262 co-relation queries the response was YES. [2022-12-13 13:20:12,405 INFO L83 FinitePrefix]: Finished finitePrefix Result has 464670 conditions, 46862 events. 33074/46862 cut-off events. For 3412772/3416262 co-relation queries the response was YES. Maximal size of possible extension queue 1940. Compared 302733 event pairs, 9561 based on Foata normal form. 2141/48338 useless extension candidates. Maximal degree in co-relation 464569. Up to 36967 conditions per place. [2022-12-13 13:20:12,668 INFO L137 encePairwiseOnDemand]: 314/318 looper letters, 395 selfloop transitions, 35 changer transitions 256/705 dead transitions. [2022-12-13 13:20:12,668 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 187 places, 705 transitions, 11023 flow [2022-12-13 13:20:12,669 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 13:20:12,669 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-12-13 13:20:12,669 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 796 transitions. [2022-12-13 13:20:12,670 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5006289308176101 [2022-12-13 13:20:12,670 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 796 transitions. [2022-12-13 13:20:12,670 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 796 transitions. [2022-12-13 13:20:12,670 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 13:20:12,670 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 796 transitions. [2022-12-13 13:20:12,671 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 159.2) internal successors, (796), 5 states have internal predecessors, (796), 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) [2022-12-13 13:20:12,672 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 318.0) internal successors, (1908), 6 states have internal predecessors, (1908), 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) [2022-12-13 13:20:12,673 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 318.0) internal successors, (1908), 6 states have internal predecessors, (1908), 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) [2022-12-13 13:20:12,673 INFO L175 Difference]: Start difference. First operand has 203 places, 409 transitions, 5519 flow. Second operand 5 states and 796 transitions. [2022-12-13 13:20:12,673 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 187 places, 705 transitions, 11023 flow [2022-12-13 13:20:28,846 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 166 places, 705 transitions, 10536 flow, removed 209 selfloop flow, removed 21 redundant places. [2022-12-13 13:20:28,852 INFO L231 Difference]: Finished difference. Result has 168 places, 388 transitions, 5119 flow [2022-12-13 13:20:28,852 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=318, PETRI_DIFFERENCE_MINUEND_FLOW=5279, PETRI_DIFFERENCE_MINUEND_PLACES=162, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=409, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=35, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=374, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=5119, PETRI_PLACES=168, PETRI_TRANSITIONS=388} [2022-12-13 13:20:28,853 INFO L288 CegarLoopForPetriNet]: 40 programPoint places, 128 predicate places. [2022-12-13 13:20:28,853 INFO L495 AbstractCegarLoop]: Abstraction has has 168 places, 388 transitions, 5119 flow [2022-12-13 13:20:28,853 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 153.5) internal successors, (614), 4 states have internal predecessors, (614), 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) [2022-12-13 13:20:28,853 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 13:20:28,853 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] [2022-12-13 13:20:28,853 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-12-13 13:20:28,853 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)] === [2022-12-13 13:20:28,853 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:20:28,853 INFO L85 PathProgramCache]: Analyzing trace with hash -281886596, now seen corresponding path program 6 times [2022-12-13 13:20:28,854 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 13:20:28,854 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1292374717] [2022-12-13 13:20:28,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:20:28,854 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 13:20:28,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:20:29,103 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-13 13:20:29,103 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 13:20:29,103 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1292374717] [2022-12-13 13:20:29,103 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1292374717] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 13:20:29,103 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1371906600] [2022-12-13 13:20:29,103 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-12-13 13:20:29,104 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 13:20:29,104 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_398229c7-9a30-405c-b80d-48e060646f91/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 13:20:29,105 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_398229c7-9a30-405c-b80d-48e060646f91/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 13:20:29,106 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_398229c7-9a30-405c-b80d-48e060646f91/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-12-13 13:20:29,352 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 3 check-sat command(s) [2022-12-13 13:20:29,352 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-13 13:20:29,354 INFO L263 TraceCheckSpWp]: Trace formula consists of 290 conjuncts, 28 conjunts are in the unsatisfiable core [2022-12-13 13:20:29,356 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 13:20:29,487 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2022-12-13 13:20:29,517 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-13 13:20:29,518 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 13:20:29,802 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-13 13:20:29,802 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1371906600] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 13:20:29,802 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-13 13:20:29,802 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 8, 7] total 20 [2022-12-13 13:20:29,802 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [363572837] [2022-12-13 13:20:29,802 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-13 13:20:29,803 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-12-13 13:20:29,803 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 13:20:29,803 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-12-13 13:20:29,803 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=101, Invalid=319, Unknown=0, NotChecked=0, Total=420 [2022-12-13 13:20:30,169 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 129 out of 318 [2022-12-13 13:20:30,171 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 168 places, 388 transitions, 5119 flow. Second operand has 21 states, 21 states have (on average 132.8095238095238) internal successors, (2789), 21 states have internal predecessors, (2789), 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) [2022-12-13 13:20:30,172 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 13:20:30,172 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 129 of 318 [2022-12-13 13:20:30,172 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 13:20:54,835 INFO L130 PetriNetUnfolder]: 90874/127751 cut-off events. [2022-12-13 13:20:54,835 INFO L131 PetriNetUnfolder]: For 5833496/5840698 co-relation queries the response was YES. [2022-12-13 13:20:55,826 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1093116 conditions, 127751 events. 90874/127751 cut-off events. For 5833496/5840698 co-relation queries the response was YES. Maximal size of possible extension queue 5309. Compared 923899 event pairs, 10688 based on Foata normal form. 4444/131045 useless extension candidates. Maximal degree in co-relation 1093032. Up to 33036 conditions per place. [2022-12-13 13:20:56,272 INFO L137 encePairwiseOnDemand]: 306/318 looper letters, 438 selfloop transitions, 331 changer transitions 1656/2444 dead transitions. [2022-12-13 13:20:56,273 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 215 places, 2444 transitions, 36112 flow [2022-12-13 13:20:56,273 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2022-12-13 13:20:56,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 50 states. [2022-12-13 13:20:56,278 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 7165 transitions. [2022-12-13 13:20:56,280 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4506289308176101 [2022-12-13 13:20:56,280 INFO L72 ComplementDD]: Start complementDD. Operand 50 states and 7165 transitions. [2022-12-13 13:20:56,280 INFO L73 IsDeterministic]: Start isDeterministic. Operand 50 states and 7165 transitions. [2022-12-13 13:20:56,281 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 13:20:56,281 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 50 states and 7165 transitions. [2022-12-13 13:20:56,288 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 51 states, 50 states have (on average 143.3) internal successors, (7165), 50 states have internal predecessors, (7165), 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) [2022-12-13 13:20:56,296 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 51 states, 51 states have (on average 318.0) internal successors, (16218), 51 states have internal predecessors, (16218), 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) [2022-12-13 13:20:56,298 INFO L81 ComplementDD]: Finished complementDD. Result has 51 states, 51 states have (on average 318.0) internal successors, (16218), 51 states have internal predecessors, (16218), 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) [2022-12-13 13:20:56,298 INFO L175 Difference]: Start difference. First operand has 168 places, 388 transitions, 5119 flow. Second operand 50 states and 7165 transitions. [2022-12-13 13:20:56,298 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 215 places, 2444 transitions, 36112 flow [2022-12-13 13:21:53,766 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 210 places, 2444 transitions, 35182 flow, removed 308 selfloop flow, removed 5 redundant places. [2022-12-13 13:21:53,781 INFO L231 Difference]: Finished difference. Result has 257 places, 545 transitions, 9020 flow [2022-12-13 13:21:53,782 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=318, PETRI_DIFFERENCE_MINUEND_FLOW=5010, PETRI_DIFFERENCE_MINUEND_PLACES=161, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=388, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=110, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=221, PETRI_DIFFERENCE_SUBTRAHEND_STATES=50, PETRI_FLOW=9020, PETRI_PLACES=257, PETRI_TRANSITIONS=545} [2022-12-13 13:21:53,782 INFO L288 CegarLoopForPetriNet]: 40 programPoint places, 217 predicate places. [2022-12-13 13:21:53,782 INFO L495 AbstractCegarLoop]: Abstraction has has 257 places, 545 transitions, 9020 flow [2022-12-13 13:21:53,783 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 132.8095238095238) internal successors, (2789), 21 states have internal predecessors, (2789), 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) [2022-12-13 13:21:53,783 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 13:21:53,783 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] [2022-12-13 13:21:53,787 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_398229c7-9a30-405c-b80d-48e060646f91/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2022-12-13 13:21:53,983 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_398229c7-9a30-405c-b80d-48e060646f91/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-12-13 13:21:53,983 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)] === [2022-12-13 13:21:53,984 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:21:53,984 INFO L85 PathProgramCache]: Analyzing trace with hash 993301388, now seen corresponding path program 7 times [2022-12-13 13:21:53,984 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 13:21:53,984 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [227822319] [2022-12-13 13:21:53,984 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:21:53,984 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 13:21:54,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:21:54,420 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-13 13:21:54,420 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 13:21:54,420 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [227822319] [2022-12-13 13:21:54,420 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [227822319] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 13:21:54,420 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [478703132] [2022-12-13 13:21:54,420 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-12-13 13:21:54,420 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 13:21:54,421 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_398229c7-9a30-405c-b80d-48e060646f91/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 13:21:54,421 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_398229c7-9a30-405c-b80d-48e060646f91/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 13:21:54,422 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_398229c7-9a30-405c-b80d-48e060646f91/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-12-13 13:21:54,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:21:54,519 INFO L263 TraceCheckSpWp]: Trace formula consists of 290 conjuncts, 46 conjunts are in the unsatisfiable core [2022-12-13 13:21:54,523 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 13:21:54,571 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 11 treesize of output 7 [2022-12-13 13:21:54,617 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 [2022-12-13 13:21:54,738 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 13:21:54,739 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2022-12-13 13:21:54,788 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 13:21:54,788 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2022-12-13 13:21:54,857 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2022-12-13 13:21:54,890 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 13:21:54,890 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2022-12-13 13:21:54,929 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 9 [2022-12-13 13:21:54,953 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-13 13:21:54,953 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 13:21:55,145 WARN L837 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_516 (Array Int Int)) (v_ArrVal_515 Int)) (let ((.cse1 (select |c_#memory_int| c_~A~0.base))) (let ((.cse0 (select (select (store (store |c_#memory_int| c_~A~0.base (store .cse1 c_~A~0.offset v_ArrVal_515)) |c_ULTIMATE.start_main_~#t4~0#1.base| v_ArrVal_516) c_~A~0.base) c_~A~0.offset))) (or (< c_~min~0 (+ 2 .cse0)) (not (<= (+ (select .cse1 c_~A~0.offset) 1) v_ArrVal_515)) (< 2147483646 .cse0))))) is different from false [2022-12-13 13:21:55,168 WARN L837 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_513 (Array Int Int)) (v_ArrVal_516 (Array Int Int)) (v_ArrVal_515 Int)) (let ((.cse2 (store |c_#memory_int| |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_513))) (let ((.cse1 (select .cse2 c_~A~0.base))) (let ((.cse0 (select (select (store (store .cse2 c_~A~0.base (store .cse1 c_~A~0.offset v_ArrVal_515)) |c_ULTIMATE.start_main_~#t4~0#1.base| v_ArrVal_516) c_~A~0.base) c_~A~0.offset))) (or (< 2147483646 .cse0) (not (<= (+ (select .cse1 c_~A~0.offset) 1) v_ArrVal_515)) (< c_~min~0 (+ .cse0 2))))))) is different from false [2022-12-13 13:22:00,093 WARN L837 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_513 (Array Int Int)) (v_ArrVal_512 (Array Int Int)) (v_ArrVal_516 (Array Int Int)) (v_ArrVal_515 Int) (v_ArrVal_511 (Array Int Int))) (let ((.cse1 (store |c_#memory_int| |c_ULTIMATE.start_main_~#t1~0#1.base| v_ArrVal_511))) (let ((.cse3 (store (store .cse1 |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_512) |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_513))) (let ((.cse0 (select .cse3 |c_ULTIMATE.start_create_fresh_int_array_~arr~0#1.base|))) (let ((.cse2 (select (select (store (store .cse3 |c_ULTIMATE.start_create_fresh_int_array_~arr~0#1.base| (store .cse0 |c_ULTIMATE.start_create_fresh_int_array_~arr~0#1.offset| v_ArrVal_515)) |c_ULTIMATE.start_main_~#t4~0#1.base| v_ArrVal_516) |c_ULTIMATE.start_create_fresh_int_array_~arr~0#1.base|) |c_ULTIMATE.start_create_fresh_int_array_~arr~0#1.offset|))) (or (not (<= (+ (select .cse0 |c_ULTIMATE.start_create_fresh_int_array_~arr~0#1.offset|) 1) v_ArrVal_515)) (< (select (select .cse1 |c_ULTIMATE.start_create_fresh_int_array_~arr~0#1.base|) |c_ULTIMATE.start_create_fresh_int_array_~arr~0#1.offset|) (+ 2 .cse2)) (< 2147483646 .cse2))))))) is different from false [2022-12-13 13:22:00,103 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-13 13:22:00,103 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 173 treesize of output 113 [2022-12-13 13:22:00,116 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7793 treesize of output 7249 [2022-12-13 13:22:00,154 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6123 treesize of output 5739 [2022-12-13 13:22:00,186 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5212 treesize of output 4940 [2022-12-13 13:22:00,221 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 1110 treesize of output 1046 [2022-12-13 13:22:00,255 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 1046 treesize of output 1014