./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/weaver/chl-poker-hand-symm.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 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_8ba53e26-6d8f-4bc4-a046-812055e38b0b/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ba53e26-6d8f-4bc4-a046-812055e38b0b/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_8ba53e26-6d8f-4bc4-a046-812055e38b0b/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ba53e26-6d8f-4bc4-a046-812055e38b0b/bin/uautomizer-uyxdKDjOR8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/chl-poker-hand-symm.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ba53e26-6d8f-4bc4-a046-812055e38b0b/bin/uautomizer-uyxdKDjOR8/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ba53e26-6d8f-4bc4-a046-812055e38b0b/bin/uautomizer-uyxdKDjOR8 --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 83dad307cba3d7607e136206fd160e874fd8a32bc88cbef3e5973f117a7651cc --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-2329fc7 [2022-12-13 15:50:52,270 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 15:50:52,271 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 15:50:52,283 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 15:50:52,284 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 15:50:52,284 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 15:50:52,285 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 15:50:52,286 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 15:50:52,287 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 15:50:52,288 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 15:50:52,288 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 15:50:52,289 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 15:50:52,289 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 15:50:52,290 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 15:50:52,290 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 15:50:52,291 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 15:50:52,291 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 15:50:52,292 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 15:50:52,293 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 15:50:52,294 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 15:50:52,295 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 15:50:52,296 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 15:50:52,296 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 15:50:52,297 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 15:50:52,299 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 15:50:52,299 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 15:50:52,299 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 15:50:52,300 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 15:50:52,300 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 15:50:52,301 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 15:50:52,301 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 15:50:52,302 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 15:50:52,302 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 15:50:52,302 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 15:50:52,303 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 15:50:52,303 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 15:50:52,304 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 15:50:52,304 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 15:50:52,304 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 15:50:52,305 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 15:50:52,305 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 15:50:52,306 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ba53e26-6d8f-4bc4-a046-812055e38b0b/bin/uautomizer-uyxdKDjOR8/config/svcomp-Overflow-32bit-Automizer_Default.epf [2022-12-13 15:50:52,319 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 15:50:52,320 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 15:50:52,320 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 15:50:52,320 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 15:50:52,320 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 15:50:52,320 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 15:50:52,321 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 15:50:52,321 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 15:50:52,321 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 15:50:52,321 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 15:50:52,321 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-13 15:50:52,321 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-13 15:50:52,321 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 15:50:52,321 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-13 15:50:52,322 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 15:50:52,322 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-13 15:50:52,322 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 15:50:52,322 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-13 15:50:52,322 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-12-13 15:50:52,322 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-13 15:50:52,322 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 15:50:52,322 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 15:50:52,322 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-13 15:50:52,322 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 15:50:52,322 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 15:50:52,323 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 15:50:52,323 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 15:50:52,323 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 15:50:52,323 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 15:50:52,323 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-13 15:50:52,323 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 15:50:52,323 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-13 15:50:52,323 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 15:50:52,323 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-13 15:50:52,323 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 15:50:52,323 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 15:50:52,324 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 15:50:52,324 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_8ba53e26-6d8f-4bc4-a046-812055e38b0b/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ba53e26-6d8f-4bc4-a046-812055e38b0b/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 83dad307cba3d7607e136206fd160e874fd8a32bc88cbef3e5973f117a7651cc [2022-12-13 15:50:52,493 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 15:50:52,512 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 15:50:52,514 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 15:50:52,515 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 15:50:52,515 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 15:50:52,516 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ba53e26-6d8f-4bc4-a046-812055e38b0b/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/weaver/chl-poker-hand-symm.wvr.c [2022-12-13 15:50:55,139 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 15:50:55,315 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 15:50:55,316 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ba53e26-6d8f-4bc4-a046-812055e38b0b/sv-benchmarks/c/weaver/chl-poker-hand-symm.wvr.c [2022-12-13 15:50:55,321 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ba53e26-6d8f-4bc4-a046-812055e38b0b/bin/uautomizer-uyxdKDjOR8/data/afa2b5090/4eb986fbf6804020843523cfffc3aec0/FLAGd63223bbc [2022-12-13 15:50:55,332 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ba53e26-6d8f-4bc4-a046-812055e38b0b/bin/uautomizer-uyxdKDjOR8/data/afa2b5090/4eb986fbf6804020843523cfffc3aec0 [2022-12-13 15:50:55,334 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 15:50:55,335 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 15:50:55,336 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 15:50:55,336 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 15:50:55,339 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 15:50:55,340 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 03:50:55" (1/1) ... [2022-12-13 15:50:55,341 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5ed317ae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:50:55, skipping insertion in model container [2022-12-13 15:50:55,341 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 03:50:55" (1/1) ... [2022-12-13 15:50:55,347 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 15:50:55,368 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 15:50:55,493 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 15:50:55,497 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 15:50:55,497 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 15:50:55,506 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 15:50:55,508 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 15:50:55,510 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 15:50:55,511 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 15:50:55,514 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 15:50:55,514 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 15:50:55,519 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 15:50:55,519 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 15:50:55,526 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 15:50:55,526 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 15:50:55,528 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 15:50:55,528 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 15:50:55,532 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 15:50:55,533 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 15:50:55,536 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 15:50:55,537 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 15:50:55,540 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 15:50:55,540 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 15:50:55,543 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 15:50:55,548 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 15:50:55,549 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 15:50:55,550 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 15:50:55,553 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 15:50:55,554 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 15:50:55,555 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 15:50:55,555 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 15:50:55,556 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 15:50:55,557 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 15:50:55,559 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 15:50:55,559 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 15:50:55,563 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 15:50:55,563 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 15:50:55,564 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 15:50:55,564 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 15:50:55,567 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 15:50:55,568 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 15:50:55,570 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 15:50:55,571 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 15:50:55,573 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 15:50:55,574 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 15:50:55,576 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 15:50:55,585 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_8ba53e26-6d8f-4bc4-a046-812055e38b0b/sv-benchmarks/c/weaver/chl-poker-hand-symm.wvr.c[12821,12834] [2022-12-13 15:50:55,591 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 15:50:55,599 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 15:50:55,609 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 15:50:55,611 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 15:50:55,611 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 15:50:55,614 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 15:50:55,614 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 15:50:55,615 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 15:50:55,616 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 15:50:55,617 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 15:50:55,618 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 15:50:55,621 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 15:50:55,621 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 15:50:55,625 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 15:50:55,625 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 15:50:55,626 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 15:50:55,626 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 15:50:55,629 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 15:50:55,630 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 15:50:55,632 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 15:50:55,632 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 15:50:55,634 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 15:50:55,634 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 15:50:55,636 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 15:50:55,638 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 15:50:55,639 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 15:50:55,640 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 15:50:55,643 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 15:50:55,643 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 15:50:55,644 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 15:50:55,645 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 15:50:55,646 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 15:50:55,646 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 15:50:55,649 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 15:50:55,649 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 15:50:55,652 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 15:50:55,653 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 15:50:55,654 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 15:50:55,654 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 15:50:55,656 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 15:50:55,657 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 15:50:55,659 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 15:50:55,659 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 15:50:55,661 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 15:50:55,661 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 15:50:55,663 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 15:50:55,667 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_8ba53e26-6d8f-4bc4-a046-812055e38b0b/sv-benchmarks/c/weaver/chl-poker-hand-symm.wvr.c[12821,12834] [2022-12-13 15:50:55,671 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 15:50:55,685 INFO L208 MainTranslator]: Completed translation [2022-12-13 15:50:55,686 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:50:55 WrapperNode [2022-12-13 15:50:55,686 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 15:50:55,687 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 15:50:55,687 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 15:50:55,687 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 15:50:55,695 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:50:55" (1/1) ... [2022-12-13 15:50:55,715 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:50:55" (1/1) ... [2022-12-13 15:50:55,779 INFO L138 Inliner]: procedures = 25, calls = 307, calls flagged for inlining = 69, calls inlined = 97, statements flattened = 1656 [2022-12-13 15:50:55,779 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 15:50:55,780 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 15:50:55,780 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 15:50:55,780 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 15:50:55,791 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:50:55" (1/1) ... [2022-12-13 15:50:55,791 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:50:55" (1/1) ... [2022-12-13 15:50:55,801 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:50:55" (1/1) ... [2022-12-13 15:50:55,801 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:50:55" (1/1) ... [2022-12-13 15:50:55,877 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:50:55" (1/1) ... [2022-12-13 15:50:55,891 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:50:55" (1/1) ... [2022-12-13 15:50:55,896 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:50:55" (1/1) ... [2022-12-13 15:50:55,901 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:50:55" (1/1) ... [2022-12-13 15:50:55,910 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 15:50:55,911 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 15:50:55,911 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 15:50:55,911 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 15:50:55,912 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:50:55" (1/1) ... [2022-12-13 15:50:55,919 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 15:50:55,930 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ba53e26-6d8f-4bc4-a046-812055e38b0b/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 15:50:55,942 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ba53e26-6d8f-4bc4-a046-812055e38b0b/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 15:50:55,945 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ba53e26-6d8f-4bc4-a046-812055e38b0b/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 15:50:55,982 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 15:50:55,982 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-13 15:50:55,983 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-13 15:50:55,983 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-13 15:50:55,983 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-12-13 15:50:55,983 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-12-13 15:50:55,983 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-12-13 15:50:55,983 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-12-13 15:50:55,984 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-13 15:50:55,984 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-12-13 15:50:55,984 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-12-13 15:50:55,984 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-12-13 15:50:55,984 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 15:50:55,984 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 15:50:55,985 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-13 15:50:55,987 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 15:50:56,134 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 15:50:56,136 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 15:50:57,307 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 15:50:59,393 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 15:50:59,393 INFO L300 CfgBuilder]: Removed 12 assume(true) statements. [2022-12-13 15:50:59,395 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 03:50:59 BoogieIcfgContainer [2022-12-13 15:50:59,395 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 15:50:59,396 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 15:50:59,396 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 15:50:59,399 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 15:50:59,399 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 03:50:55" (1/3) ... [2022-12-13 15:50:59,399 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@16e79686 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 03:50:59, skipping insertion in model container [2022-12-13 15:50:59,400 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:50:55" (2/3) ... [2022-12-13 15:50:59,400 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@16e79686 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 03:50:59, skipping insertion in model container [2022-12-13 15:50:59,400 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 03:50:59" (3/3) ... [2022-12-13 15:50:59,401 INFO L112 eAbstractionObserver]: Analyzing ICFG chl-poker-hand-symm.wvr.c [2022-12-13 15:50:59,409 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-12-13 15:50:59,419 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 15:50:59,420 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 70 error locations. [2022-12-13 15:50:59,420 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-13 15:50:59,976 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-12-13 15:51:00,019 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 517 places, 563 transitions, 1142 flow [2022-12-13 15:51:00,276 INFO L130 PetriNetUnfolder]: 53/561 cut-off events. [2022-12-13 15:51:00,277 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-12-13 15:51:00,283 INFO L83 FinitePrefix]: Finished finitePrefix Result has 570 conditions, 561 events. 53/561 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 978 event pairs, 0 based on Foata normal form. 0/438 useless extension candidates. Maximal degree in co-relation 460. Up to 7 conditions per place. [2022-12-13 15:51:00,283 INFO L82 GeneralOperation]: Start removeDead. Operand has 517 places, 563 transitions, 1142 flow [2022-12-13 15:51:00,291 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 498 places, 543 transitions, 1098 flow [2022-12-13 15:51:00,294 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2022-12-13 15:51:00,303 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 498 places, 543 transitions, 1098 flow [2022-12-13 15:51:00,305 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 498 places, 543 transitions, 1098 flow [2022-12-13 15:51:00,306 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 498 places, 543 transitions, 1098 flow [2022-12-13 15:51:00,504 INFO L130 PetriNetUnfolder]: 52/543 cut-off events. [2022-12-13 15:51:00,504 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-12-13 15:51:00,506 INFO L83 FinitePrefix]: Finished finitePrefix Result has 552 conditions, 543 events. 52/543 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 980 event pairs, 0 based on Foata normal form. 0/422 useless extension candidates. Maximal degree in co-relation 460. Up to 7 conditions per place. [2022-12-13 15:51:00,513 INFO L119 LiptonReduction]: Number of co-enabled transitions 12848 [2022-12-13 15:52:48,506 INFO L134 LiptonReduction]: Checked pairs total: 14611 [2022-12-13 15:52:48,506 INFO L136 LiptonReduction]: Total number of compositions: 666 [2022-12-13 15:52:48,520 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 15:52:48,526 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;@1175a784, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 15:52:48,526 INFO L358 AbstractCegarLoop]: Starting to check reachability of 124 error locations. [2022-12-13 15:52:48,529 INFO L130 PetriNetUnfolder]: 1/2 cut-off events. [2022-12-13 15:52:48,529 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 15:52:48,529 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 15:52:48,529 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1] [2022-12-13 15:52:48,530 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (and 121 more)] === [2022-12-13 15:52:48,534 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 15:52:48,534 INFO L85 PathProgramCache]: Analyzing trace with hash 206046, now seen corresponding path program 1 times [2022-12-13 15:52:48,541 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 15:52:48,541 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1475016069] [2022-12-13 15:52:48,541 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:52:48,542 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 15:52:48,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:52:48,720 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 15:52:48,721 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 15:52:48,721 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1475016069] [2022-12-13 15:52:48,722 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1475016069] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 15:52:48,722 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 15:52:48,722 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-13 15:52:48,723 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1233621654] [2022-12-13 15:52:48,724 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 15:52:48,730 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 15:52:48,730 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 15:52:48,744 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 15:52:48,746 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 15:52:48,824 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 429 out of 1229 [2022-12-13 15:52:48,830 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 99 places, 108 transitions, 228 flow. Second operand has 3 states, 3 states have (on average 429.6666666666667) internal successors, (1289), 3 states have internal predecessors, (1289), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:52:48,830 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 15:52:48,830 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 429 of 1229 [2022-12-13 15:52:48,831 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 15:52:52,394 INFO L130 PetriNetUnfolder]: 3359/5327 cut-off events. [2022-12-13 15:52:52,394 INFO L131 PetriNetUnfolder]: For 98/98 co-relation queries the response was YES. [2022-12-13 15:52:52,398 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10790 conditions, 5327 events. 3359/5327 cut-off events. For 98/98 co-relation queries the response was YES. Maximal size of possible extension queue 641. Compared 33540 event pairs, 2640 based on Foata normal form. 2/1601 useless extension candidates. Maximal degree in co-relation 5136. Up to 2673 conditions per place. [2022-12-13 15:52:52,415 INFO L137 encePairwiseOnDemand]: 1177/1229 looper letters, 141 selfloop transitions, 16 changer transitions 2/159 dead transitions. [2022-12-13 15:52:52,415 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 81 places, 159 transitions, 660 flow [2022-12-13 15:52:52,416 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 15:52:52,418 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 15:52:52,430 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1502 transitions. [2022-12-13 15:52:52,435 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4073772714944399 [2022-12-13 15:52:52,436 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1502 transitions. [2022-12-13 15:52:52,436 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1502 transitions. [2022-12-13 15:52:52,440 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 15:52:52,442 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1502 transitions. [2022-12-13 15:52:52,451 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 500.6666666666667) internal successors, (1502), 3 states have internal predecessors, (1502), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:52:52,469 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1229.0) internal successors, (4916), 4 states have internal predecessors, (4916), 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 15:52:52,474 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1229.0) internal successors, (4916), 4 states have internal predecessors, (4916), 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 15:52:52,475 INFO L175 Difference]: Start difference. First operand has 99 places, 108 transitions, 228 flow. Second operand 3 states and 1502 transitions. [2022-12-13 15:52:52,476 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 81 places, 159 transitions, 660 flow [2022-12-13 15:52:52,496 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 77 places, 159 transitions, 644 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-12-13 15:52:52,500 INFO L231 Difference]: Finished difference. Result has 79 places, 102 transitions, 333 flow [2022-12-13 15:52:52,502 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=1229, PETRI_DIFFERENCE_MINUEND_FLOW=180, PETRI_DIFFERENCE_MINUEND_PLACES=75, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=88, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=72, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=333, PETRI_PLACES=79, PETRI_TRANSITIONS=102} [2022-12-13 15:52:52,506 INFO L288 CegarLoopForPetriNet]: 99 programPoint places, -20 predicate places. [2022-12-13 15:52:52,506 INFO L495 AbstractCegarLoop]: Abstraction has has 79 places, 102 transitions, 333 flow [2022-12-13 15:52:52,508 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 429.6666666666667) internal successors, (1289), 3 states have internal predecessors, (1289), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:52:52,508 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 15:52:52,508 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2022-12-13 15:52:52,508 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-13 15:52:52,508 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (and 121 more)] === [2022-12-13 15:52:52,509 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 15:52:52,509 INFO L85 PathProgramCache]: Analyzing trace with hash 6394823, now seen corresponding path program 1 times [2022-12-13 15:52:52,509 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 15:52:52,510 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [250806799] [2022-12-13 15:52:52,510 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:52:52,510 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 15:52:52,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:52:52,607 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 15:52:52,608 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 15:52:52,608 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [250806799] [2022-12-13 15:52:52,608 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [250806799] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 15:52:52,608 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 15:52:52,608 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 15:52:52,608 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1512351391] [2022-12-13 15:52:52,608 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 15:52:52,609 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 15:52:52,610 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 15:52:52,610 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 15:52:52,610 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 15:52:52,667 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 429 out of 1229 [2022-12-13 15:52:52,670 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 79 places, 102 transitions, 333 flow. Second operand has 3 states, 3 states have (on average 430.0) internal successors, (1290), 3 states have internal predecessors, (1290), 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 15:52:52,670 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 15:52:52,670 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 429 of 1229 [2022-12-13 15:52:52,670 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 15:52:55,983 INFO L130 PetriNetUnfolder]: 3359/5317 cut-off events. [2022-12-13 15:52:55,983 INFO L131 PetriNetUnfolder]: For 18/18 co-relation queries the response was YES. [2022-12-13 15:52:55,985 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10737 conditions, 5317 events. 3359/5317 cut-off events. For 18/18 co-relation queries the response was YES. Maximal size of possible extension queue 688. Compared 34173 event pairs, 2640 based on Foata normal form. 0/1613 useless extension candidates. Maximal degree in co-relation 5321. Up to 5317 conditions per place. [2022-12-13 15:52:55,997 INFO L137 encePairwiseOnDemand]: 1220/1229 looper letters, 93 selfloop transitions, 1 changer transitions 0/94 dead transitions. [2022-12-13 15:52:55,997 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 72 places, 94 transitions, 489 flow [2022-12-13 15:52:55,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 15:52:55,998 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 15:52:56,000 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1374 transitions. [2022-12-13 15:52:56,000 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.3726606997558991 [2022-12-13 15:52:56,000 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1374 transitions. [2022-12-13 15:52:56,001 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1374 transitions. [2022-12-13 15:52:56,001 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 15:52:56,001 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1374 transitions. [2022-12-13 15:52:56,003 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 458.0) internal successors, (1374), 3 states have internal predecessors, (1374), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:52:56,006 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1229.0) internal successors, (4916), 4 states have internal predecessors, (4916), 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 15:52:56,008 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1229.0) internal successors, (4916), 4 states have internal predecessors, (4916), 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 15:52:56,008 INFO L175 Difference]: Start difference. First operand has 79 places, 102 transitions, 333 flow. Second operand 3 states and 1374 transitions. [2022-12-13 15:52:56,008 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 72 places, 94 transitions, 489 flow [2022-12-13 15:52:56,009 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 70 places, 94 transitions, 457 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-12-13 15:52:56,009 INFO L231 Difference]: Finished difference. Result has 70 places, 94 transitions, 271 flow [2022-12-13 15:52:56,010 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=1229, PETRI_DIFFERENCE_MINUEND_FLOW=269, PETRI_DIFFERENCE_MINUEND_PLACES=68, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=94, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=93, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=271, PETRI_PLACES=70, PETRI_TRANSITIONS=94} [2022-12-13 15:52:56,010 INFO L288 CegarLoopForPetriNet]: 99 programPoint places, -29 predicate places. [2022-12-13 15:52:56,010 INFO L495 AbstractCegarLoop]: Abstraction has has 70 places, 94 transitions, 271 flow [2022-12-13 15:52:56,011 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 430.0) internal successors, (1290), 3 states have internal predecessors, (1290), 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 15:52:56,011 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 15:52:56,011 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2022-12-13 15:52:56,011 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-13 15:52:56,011 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (and 121 more)] === [2022-12-13 15:52:56,012 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 15:52:56,012 INFO L85 PathProgramCache]: Analyzing trace with hash 6394824, now seen corresponding path program 1 times [2022-12-13 15:52:56,012 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 15:52:56,012 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1888723450] [2022-12-13 15:52:56,012 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:52:56,012 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 15:52:56,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:52:56,075 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 15:52:56,075 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 15:52:56,075 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1888723450] [2022-12-13 15:52:56,075 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1888723450] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 15:52:56,076 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [755726439] [2022-12-13 15:52:56,076 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:52:56,076 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 15:52:56,076 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ba53e26-6d8f-4bc4-a046-812055e38b0b/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 15:52:56,077 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ba53e26-6d8f-4bc4-a046-812055e38b0b/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 15:52:56,078 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ba53e26-6d8f-4bc4-a046-812055e38b0b/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-12-13 15:52:56,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:52:56,647 INFO L263 TraceCheckSpWp]: Trace formula consists of 140 conjuncts, 4 conjunts are in the unsatisfiable core [2022-12-13 15:52:56,649 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 15:52:56,674 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 15:52:56,674 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 15:52:56,687 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 15:52:56,688 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [755726439] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 15:52:56,688 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-13 15:52:56,688 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2, 2, 2] total 5 [2022-12-13 15:52:56,688 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1690036226] [2022-12-13 15:52:56,688 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-13 15:52:56,689 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-13 15:52:56,689 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 15:52:56,689 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-13 15:52:56,689 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2022-12-13 15:52:56,826 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 429 out of 1229 [2022-12-13 15:52:56,831 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 70 places, 94 transitions, 271 flow. Second operand has 7 states, 7 states have (on average 430.14285714285717) internal successors, (3011), 7 states have internal predecessors, (3011), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:52:56,831 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 15:52:56,831 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 429 of 1229 [2022-12-13 15:52:56,831 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 15:53:05,258 INFO L130 PetriNetUnfolder]: 8396/13279 cut-off events. [2022-12-13 15:53:05,258 INFO L131 PetriNetUnfolder]: For 45/45 co-relation queries the response was YES. [2022-12-13 15:53:05,263 INFO L83 FinitePrefix]: Finished finitePrefix Result has 26757 conditions, 13279 events. 8396/13279 cut-off events. For 45/45 co-relation queries the response was YES. Maximal size of possible extension queue 1241. Compared 94541 event pairs, 6600 based on Foata normal form. 0/3996 useless extension candidates. Maximal degree in co-relation 26749. Up to 2675 conditions per place. [2022-12-13 15:53:05,294 INFO L137 encePairwiseOnDemand]: 1205/1229 looper letters, 298 selfloop transitions, 61 changer transitions 0/359 dead transitions. [2022-12-13 15:53:05,294 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 75 places, 359 transitions, 1621 flow [2022-12-13 15:53:05,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 15:53:05,295 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-12-13 15:53:05,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2957 transitions. [2022-12-13 15:53:05,299 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4010035259018172 [2022-12-13 15:53:05,299 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2957 transitions. [2022-12-13 15:53:05,299 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2957 transitions. [2022-12-13 15:53:05,300 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 15:53:05,300 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2957 transitions. [2022-12-13 15:53:05,307 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 492.8333333333333) internal successors, (2957), 6 states have internal predecessors, (2957), 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 15:53:05,318 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 1229.0) internal successors, (8603), 7 states have internal predecessors, (8603), 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 15:53:05,323 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 1229.0) internal successors, (8603), 7 states have internal predecessors, (8603), 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 15:53:05,323 INFO L175 Difference]: Start difference. First operand has 70 places, 94 transitions, 271 flow. Second operand 6 states and 2957 transitions. [2022-12-13 15:53:05,323 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 75 places, 359 transitions, 1621 flow [2022-12-13 15:53:05,326 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 74 places, 359 transitions, 1620 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-12-13 15:53:05,329 INFO L231 Difference]: Finished difference. Result has 77 places, 139 transitions, 705 flow [2022-12-13 15:53:05,329 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=1229, PETRI_DIFFERENCE_MINUEND_FLOW=270, PETRI_DIFFERENCE_MINUEND_PLACES=69, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=94, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=24, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=70, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=705, PETRI_PLACES=77, PETRI_TRANSITIONS=139} [2022-12-13 15:53:05,330 INFO L288 CegarLoopForPetriNet]: 99 programPoint places, -22 predicate places. [2022-12-13 15:53:05,330 INFO L495 AbstractCegarLoop]: Abstraction has has 77 places, 139 transitions, 705 flow [2022-12-13 15:53:05,332 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 430.14285714285717) internal successors, (3011), 7 states have internal predecessors, (3011), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:53:05,332 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 15:53:05,332 INFO L209 CegarLoopForPetriNet]: trace histogram [4, 1, 1] [2022-12-13 15:53:05,342 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ba53e26-6d8f-4bc4-a046-812055e38b0b/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-12-13 15:53:05,533 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ba53e26-6d8f-4bc4-a046-812055e38b0b/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2022-12-13 15:53:05,534 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (and 121 more)] === [2022-12-13 15:53:05,534 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 15:53:05,534 INFO L85 PathProgramCache]: Analyzing trace with hash 1536986974, now seen corresponding path program 2 times [2022-12-13 15:53:05,534 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 15:53:05,535 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2054213746] [2022-12-13 15:53:05,535 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:53:05,535 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 15:53:05,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:53:05,658 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 15:53:05,658 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 15:53:05,658 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2054213746] [2022-12-13 15:53:05,658 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2054213746] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 15:53:05,658 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [309147657] [2022-12-13 15:53:05,658 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-12-13 15:53:05,659 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 15:53:05,659 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ba53e26-6d8f-4bc4-a046-812055e38b0b/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 15:53:05,660 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ba53e26-6d8f-4bc4-a046-812055e38b0b/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 15:53:05,661 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ba53e26-6d8f-4bc4-a046-812055e38b0b/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-12-13 15:53:06,116 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-12-13 15:53:06,116 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-13 15:53:06,117 INFO L263 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 5 conjunts are in the unsatisfiable core [2022-12-13 15:53:06,117 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 15:53:06,126 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-12-13 15:53:06,126 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 15:53:06,127 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [309147657] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 15:53:06,127 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-13 15:53:06,127 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [5] total 6 [2022-12-13 15:53:06,127 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1133936680] [2022-12-13 15:53:06,127 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 15:53:06,127 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 15:53:06,127 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 15:53:06,128 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 15:53:06,128 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-12-13 15:53:06,183 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 437 out of 1229 [2022-12-13 15:53:06,186 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 77 places, 139 transitions, 705 flow. Second operand has 3 states, 3 states have (on average 438.0) internal successors, (1314), 3 states have internal predecessors, (1314), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:53:06,186 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 15:53:06,186 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 437 of 1229 [2022-12-13 15:53:06,186 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 15:53:15,492 INFO L130 PetriNetUnfolder]: 8396/13273 cut-off events. [2022-12-13 15:53:15,492 INFO L131 PetriNetUnfolder]: For 60/60 co-relation queries the response was YES. [2022-12-13 15:53:15,500 INFO L83 FinitePrefix]: Finished finitePrefix Result has 26862 conditions, 13273 events. 8396/13273 cut-off events. For 60/60 co-relation queries the response was YES. Maximal size of possible extension queue 1241. Compared 94144 event pairs, 6600 based on Foata normal form. 6/4025 useless extension candidates. Maximal degree in co-relation 26850. Up to 13218 conditions per place. [2022-12-13 15:53:15,549 INFO L137 encePairwiseOnDemand]: 1221/1229 looper letters, 127 selfloop transitions, 6 changer transitions 0/133 dead transitions. [2022-12-13 15:53:15,549 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 73 places, 133 transitions, 911 flow [2022-12-13 15:53:15,550 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 15:53:15,550 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 15:53:15,554 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1390 transitions. [2022-12-13 15:53:15,555 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.3770002712232167 [2022-12-13 15:53:15,555 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1390 transitions. [2022-12-13 15:53:15,555 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1390 transitions. [2022-12-13 15:53:15,557 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 15:53:15,557 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1390 transitions. [2022-12-13 15:53:15,562 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 463.3333333333333) internal successors, (1390), 3 states have internal predecessors, (1390), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:53:15,572 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1229.0) internal successors, (4916), 4 states have internal predecessors, (4916), 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 15:53:15,575 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1229.0) internal successors, (4916), 4 states have internal predecessors, (4916), 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 15:53:15,575 INFO L175 Difference]: Start difference. First operand has 77 places, 139 transitions, 705 flow. Second operand 3 states and 1390 transitions. [2022-12-13 15:53:15,576 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 73 places, 133 transitions, 911 flow [2022-12-13 15:53:15,579 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 72 places, 133 transitions, 826 flow, removed 24 selfloop flow, removed 1 redundant places. [2022-12-13 15:53:15,582 INFO L231 Difference]: Finished difference. Result has 72 places, 133 transitions, 572 flow [2022-12-13 15:53:15,583 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=1229, PETRI_DIFFERENCE_MINUEND_FLOW=560, PETRI_DIFFERENCE_MINUEND_PLACES=70, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=133, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=127, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=572, PETRI_PLACES=72, PETRI_TRANSITIONS=133} [2022-12-13 15:53:15,584 INFO L288 CegarLoopForPetriNet]: 99 programPoint places, -27 predicate places. [2022-12-13 15:53:15,584 INFO L495 AbstractCegarLoop]: Abstraction has has 72 places, 133 transitions, 572 flow [2022-12-13 15:53:15,585 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 438.0) internal successors, (1314), 3 states have internal predecessors, (1314), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:53:15,585 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 15:53:15,585 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 15:53:15,594 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ba53e26-6d8f-4bc4-a046-812055e38b0b/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-12-13 15:53:15,785 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ba53e26-6d8f-4bc4-a046-812055e38b0b/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 15:53:15,786 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (and 121 more)] === [2022-12-13 15:53:15,786 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 15:53:15,786 INFO L85 PathProgramCache]: Analyzing trace with hash -1196591518, now seen corresponding path program 1 times [2022-12-13 15:53:15,786 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 15:53:15,786 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [484700602] [2022-12-13 15:53:15,786 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:53:15,787 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 15:53:15,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:53:15,915 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 15:53:15,915 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 15:53:15,915 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [484700602] [2022-12-13 15:53:15,915 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [484700602] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 15:53:15,915 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 15:53:15,916 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 15:53:15,916 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [804832389] [2022-12-13 15:53:15,916 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 15:53:15,916 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 15:53:15,916 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 15:53:15,917 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 15:53:15,917 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 15:53:16,018 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 421 out of 1229 [2022-12-13 15:53:16,019 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 72 places, 133 transitions, 572 flow. Second operand has 3 states, 3 states have (on average 424.6666666666667) internal successors, (1274), 3 states have internal predecessors, (1274), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:53:16,020 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 15:53:16,020 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 421 of 1229 [2022-12-13 15:53:16,020 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 15:53:24,326 INFO L130 PetriNetUnfolder]: 8392/13269 cut-off events. [2022-12-13 15:53:24,326 INFO L131 PetriNetUnfolder]: For 54/54 co-relation queries the response was YES. [2022-12-13 15:53:24,333 INFO L83 FinitePrefix]: Finished finitePrefix Result has 26803 conditions, 13269 events. 8392/13269 cut-off events. For 54/54 co-relation queries the response was YES. Maximal size of possible extension queue 1206. Compared 94056 event pairs, 6600 based on Foata normal form. 4/4027 useless extension candidates. Maximal degree in co-relation 26790. Up to 13253 conditions per place. [2022-12-13 15:53:24,360 INFO L137 encePairwiseOnDemand]: 1220/1229 looper letters, 108 selfloop transitions, 21 changer transitions 0/129 dead transitions. [2022-12-13 15:53:24,360 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 74 places, 129 transitions, 812 flow [2022-12-13 15:53:24,361 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 15:53:24,361 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 15:53:24,366 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1344 transitions. [2022-12-13 15:53:24,367 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.3645240032546786 [2022-12-13 15:53:24,367 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1344 transitions. [2022-12-13 15:53:24,367 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1344 transitions. [2022-12-13 15:53:24,368 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 15:53:24,368 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1344 transitions. [2022-12-13 15:53:24,372 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 448.0) internal successors, (1344), 3 states have internal predecessors, (1344), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:53:24,380 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1229.0) internal successors, (4916), 4 states have internal predecessors, (4916), 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 15:53:24,382 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1229.0) internal successors, (4916), 4 states have internal predecessors, (4916), 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 15:53:24,382 INFO L175 Difference]: Start difference. First operand has 72 places, 133 transitions, 572 flow. Second operand 3 states and 1344 transitions. [2022-12-13 15:53:24,382 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 74 places, 129 transitions, 812 flow [2022-12-13 15:53:24,384 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 72 places, 129 transitions, 802 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-12-13 15:53:24,387 INFO L231 Difference]: Finished difference. Result has 72 places, 129 transitions, 586 flow [2022-12-13 15:53:24,387 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=1229, PETRI_DIFFERENCE_MINUEND_FLOW=544, PETRI_DIFFERENCE_MINUEND_PLACES=70, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=129, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=21, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=108, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=586, PETRI_PLACES=72, PETRI_TRANSITIONS=129} [2022-12-13 15:53:24,388 INFO L288 CegarLoopForPetriNet]: 99 programPoint places, -27 predicate places. [2022-12-13 15:53:24,388 INFO L495 AbstractCegarLoop]: Abstraction has has 72 places, 129 transitions, 586 flow [2022-12-13 15:53:24,389 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 424.6666666666667) internal successors, (1274), 3 states have internal predecessors, (1274), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:53:24,389 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 15:53:24,389 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 15:53:24,389 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-13 15:53:24,390 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting thread1Err24ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (and 121 more)] === [2022-12-13 15:53:24,390 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 15:53:24,390 INFO L85 PathProgramCache]: Analyzing trace with hash -1212699594, now seen corresponding path program 1 times [2022-12-13 15:53:24,390 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 15:53:24,390 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1027796205] [2022-12-13 15:53:24,390 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:53:24,391 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 15:53:24,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:53:24,521 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 15:53:24,521 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 15:53:24,522 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1027796205] [2022-12-13 15:53:24,522 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1027796205] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 15:53:24,522 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 15:53:24,522 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 15:53:24,522 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1618360303] [2022-12-13 15:53:24,522 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 15:53:24,523 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 15:53:24,523 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 15:53:24,523 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 15:53:24,523 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 15:53:24,622 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 421 out of 1229 [2022-12-13 15:53:24,623 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 72 places, 129 transitions, 586 flow. Second operand has 3 states, 3 states have (on average 426.0) internal successors, (1278), 3 states have internal predecessors, (1278), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:53:24,624 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 15:53:24,624 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 421 of 1229 [2022-12-13 15:53:24,624 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 15:53:30,628 INFO L130 PetriNetUnfolder]: 6719/10629 cut-off events. [2022-12-13 15:53:30,629 INFO L131 PetriNetUnfolder]: For 54/54 co-relation queries the response was YES. [2022-12-13 15:53:30,634 INFO L83 FinitePrefix]: Finished finitePrefix Result has 21516 conditions, 10629 events. 6719/10629 cut-off events. For 54/54 co-relation queries the response was YES. Maximal size of possible extension queue 1161. Compared 73980 event pairs, 5280 based on Foata normal form. 2/3236 useless extension candidates. Maximal degree in co-relation 21504. Up to 10622 conditions per place. [2022-12-13 15:53:30,651 INFO L137 encePairwiseOnDemand]: 1224/1229 looper letters, 118 selfloop transitions, 10 changer transitions 0/128 dead transitions. [2022-12-13 15:53:30,651 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 74 places, 128 transitions, 838 flow [2022-12-13 15:53:30,651 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 15:53:30,651 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 15:53:30,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1340 transitions. [2022-12-13 15:53:30,657 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.3634391103878492 [2022-12-13 15:53:30,657 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1340 transitions. [2022-12-13 15:53:30,657 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1340 transitions. [2022-12-13 15:53:30,658 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 15:53:30,658 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1340 transitions. [2022-12-13 15:53:30,660 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 446.6666666666667) internal successors, (1340), 3 states have internal predecessors, (1340), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:53:30,663 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1229.0) internal successors, (4916), 4 states have internal predecessors, (4916), 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 15:53:30,664 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1229.0) internal successors, (4916), 4 states have internal predecessors, (4916), 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 15:53:30,664 INFO L175 Difference]: Start difference. First operand has 72 places, 129 transitions, 586 flow. Second operand 3 states and 1340 transitions. [2022-12-13 15:53:30,664 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 74 places, 128 transitions, 838 flow [2022-12-13 15:53:30,666 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 73 places, 128 transitions, 817 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-12-13 15:53:30,668 INFO L231 Difference]: Finished difference. Result has 74 places, 128 transitions, 593 flow [2022-12-13 15:53:30,668 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=1229, PETRI_DIFFERENCE_MINUEND_FLOW=561, PETRI_DIFFERENCE_MINUEND_PLACES=71, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=128, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=118, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=593, PETRI_PLACES=74, PETRI_TRANSITIONS=128} [2022-12-13 15:53:30,668 INFO L288 CegarLoopForPetriNet]: 99 programPoint places, -25 predicate places. [2022-12-13 15:53:30,669 INFO L495 AbstractCegarLoop]: Abstraction has has 74 places, 128 transitions, 593 flow [2022-12-13 15:53:30,669 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 426.0) internal successors, (1278), 3 states have internal predecessors, (1278), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:53:30,669 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 15:53:30,670 INFO L209 CegarLoopForPetriNet]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 15:53:30,670 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-12-13 15:53:30,670 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (and 121 more)] === [2022-12-13 15:53:30,670 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 15:53:30,670 INFO L85 PathProgramCache]: Analyzing trace with hash 1046469334, now seen corresponding path program 1 times [2022-12-13 15:53:30,670 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 15:53:30,671 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1871524047] [2022-12-13 15:53:30,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:53:30,671 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 15:53:30,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:53:30,784 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2022-12-13 15:53:30,784 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 15:53:30,785 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1871524047] [2022-12-13 15:53:30,785 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1871524047] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 15:53:30,785 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [149949163] [2022-12-13 15:53:30,785 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:53:30,785 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 15:53:30,785 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ba53e26-6d8f-4bc4-a046-812055e38b0b/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 15:53:30,786 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ba53e26-6d8f-4bc4-a046-812055e38b0b/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 15:53:30,787 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ba53e26-6d8f-4bc4-a046-812055e38b0b/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-12-13 15:53:31,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:53:31,319 INFO L263 TraceCheckSpWp]: Trace formula consists of 379 conjuncts, 4 conjunts are in the unsatisfiable core [2022-12-13 15:53:31,320 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 15:53:31,330 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-12-13 15:53:31,330 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 15:53:31,331 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [149949163] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 15:53:31,331 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-13 15:53:31,331 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2022-12-13 15:53:31,331 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1454400819] [2022-12-13 15:53:31,331 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 15:53:31,332 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 15:53:31,332 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 15:53:31,332 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 15:53:31,332 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-12-13 15:53:31,436 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 421 out of 1229 [2022-12-13 15:53:31,438 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 74 places, 128 transitions, 593 flow. Second operand has 3 states, 3 states have (on average 425.3333333333333) internal successors, (1276), 3 states have internal predecessors, (1276), 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 15:53:31,438 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 15:53:31,438 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 421 of 1229 [2022-12-13 15:53:31,438 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 15:53:37,422 INFO L130 PetriNetUnfolder]: 6717/10627 cut-off events. [2022-12-13 15:53:37,422 INFO L131 PetriNetUnfolder]: For 61/61 co-relation queries the response was YES. [2022-12-13 15:53:37,428 INFO L83 FinitePrefix]: Finished finitePrefix Result has 21522 conditions, 10627 events. 6717/10627 cut-off events. For 61/61 co-relation queries the response was YES. Maximal size of possible extension queue 1140. Compared 73944 event pairs, 5280 based on Foata normal form. 2/3232 useless extension candidates. Maximal degree in co-relation 21509. Up to 10615 conditions per place. [2022-12-13 15:53:37,447 INFO L137 encePairwiseOnDemand]: 1220/1229 looper letters, 109 selfloop transitions, 17 changer transitions 0/126 dead transitions. [2022-12-13 15:53:37,447 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 76 places, 126 transitions, 836 flow [2022-12-13 15:53:37,447 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 15:53:37,447 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 15:53:37,449 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1342 transitions. [2022-12-13 15:53:37,449 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.3639815568212639 [2022-12-13 15:53:37,449 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1342 transitions. [2022-12-13 15:53:37,449 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1342 transitions. [2022-12-13 15:53:37,450 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 15:53:37,450 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1342 transitions. [2022-12-13 15:53:37,452 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 447.3333333333333) internal successors, (1342), 3 states have internal predecessors, (1342), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:53:37,454 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1229.0) internal successors, (4916), 4 states have internal predecessors, (4916), 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 15:53:37,455 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1229.0) internal successors, (4916), 4 states have internal predecessors, (4916), 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 15:53:37,455 INFO L175 Difference]: Start difference. First operand has 74 places, 128 transitions, 593 flow. Second operand 3 states and 1342 transitions. [2022-12-13 15:53:37,455 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 76 places, 126 transitions, 836 flow [2022-12-13 15:53:37,457 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 75 places, 126 transitions, 826 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-12-13 15:53:37,458 INFO L231 Difference]: Finished difference. Result has 75 places, 126 transitions, 608 flow [2022-12-13 15:53:37,458 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=1229, PETRI_DIFFERENCE_MINUEND_FLOW=574, PETRI_DIFFERENCE_MINUEND_PLACES=73, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=126, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=109, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=608, PETRI_PLACES=75, PETRI_TRANSITIONS=126} [2022-12-13 15:53:37,458 INFO L288 CegarLoopForPetriNet]: 99 programPoint places, -24 predicate places. [2022-12-13 15:53:37,458 INFO L495 AbstractCegarLoop]: Abstraction has has 75 places, 126 transitions, 608 flow [2022-12-13 15:53:37,459 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 425.3333333333333) internal successors, (1276), 3 states have internal predecessors, (1276), 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 15:53:37,459 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 15:53:37,459 INFO L209 CegarLoopForPetriNet]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 15:53:37,468 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ba53e26-6d8f-4bc4-a046-812055e38b0b/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-12-13 15:53:37,659 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ba53e26-6d8f-4bc4-a046-812055e38b0b/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 15:53:37,660 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (and 121 more)] === [2022-12-13 15:53:37,660 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 15:53:37,660 INFO L85 PathProgramCache]: Analyzing trace with hash -2029727883, now seen corresponding path program 1 times [2022-12-13 15:53:37,660 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 15:53:37,660 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [486799368] [2022-12-13 15:53:37,660 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:53:37,660 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 15:53:37,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:53:37,766 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-12-13 15:53:37,766 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 15:53:37,766 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [486799368] [2022-12-13 15:53:37,767 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [486799368] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 15:53:37,767 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [843280975] [2022-12-13 15:53:37,767 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:53:37,767 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 15:53:37,767 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ba53e26-6d8f-4bc4-a046-812055e38b0b/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 15:53:37,768 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ba53e26-6d8f-4bc4-a046-812055e38b0b/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 15:53:37,769 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ba53e26-6d8f-4bc4-a046-812055e38b0b/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-12-13 15:53:38,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:53:38,301 INFO L263 TraceCheckSpWp]: Trace formula consists of 401 conjuncts, 5 conjunts are in the unsatisfiable core [2022-12-13 15:53:38,302 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 15:53:38,323 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-12-13 15:53:38,324 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 15:53:38,341 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-12-13 15:53:38,341 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [843280975] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 15:53:38,342 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-13 15:53:38,342 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 3, 3] total 8 [2022-12-13 15:53:38,342 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1566977170] [2022-12-13 15:53:38,342 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-13 15:53:38,342 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-13 15:53:38,342 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 15:53:38,343 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-13 15:53:38,343 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2022-12-13 15:53:38,615 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 405 out of 1229 [2022-12-13 15:53:38,618 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 75 places, 126 transitions, 608 flow. Second operand has 8 states, 8 states have (on average 408.125) internal successors, (3265), 8 states have internal predecessors, (3265), 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 15:53:38,618 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 15:53:38,618 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 405 of 1229 [2022-12-13 15:53:38,618 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 15:53:40,373 INFO L130 PetriNetUnfolder]: 1680/2689 cut-off events. [2022-12-13 15:53:40,373 INFO L131 PetriNetUnfolder]: For 37/37 co-relation queries the response was YES. [2022-12-13 15:53:40,375 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5523 conditions, 2689 events. 1680/2689 cut-off events. For 37/37 co-relation queries the response was YES. Maximal size of possible extension queue 379. Compared 15336 event pairs, 1320 based on Foata normal form. 24/861 useless extension candidates. Maximal degree in co-relation 5509. Up to 2656 conditions per place. [2022-12-13 15:53:40,379 INFO L137 encePairwiseOnDemand]: 1210/1229 looper letters, 63 selfloop transitions, 42 changer transitions 0/105 dead transitions. [2022-12-13 15:53:40,379 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 82 places, 105 transitions, 650 flow [2022-12-13 15:53:40,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-13 15:53:40,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2022-12-13 15:53:40,383 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 3369 transitions. [2022-12-13 15:53:40,383 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.3426566314076485 [2022-12-13 15:53:40,383 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 3369 transitions. [2022-12-13 15:53:40,383 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 3369 transitions. [2022-12-13 15:53:40,384 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 15:53:40,384 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 3369 transitions. [2022-12-13 15:53:40,387 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 421.125) internal successors, (3369), 8 states have internal predecessors, (3369), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:53:40,393 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 1229.0) internal successors, (11061), 9 states have internal predecessors, (11061), 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 15:53:40,395 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 1229.0) internal successors, (11061), 9 states have internal predecessors, (11061), 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 15:53:40,395 INFO L175 Difference]: Start difference. First operand has 75 places, 126 transitions, 608 flow. Second operand 8 states and 3369 transitions. [2022-12-13 15:53:40,395 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 82 places, 105 transitions, 650 flow [2022-12-13 15:53:40,396 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 80 places, 105 transitions, 626 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-12-13 15:53:40,397 INFO L231 Difference]: Finished difference. Result has 83 places, 105 transitions, 548 flow [2022-12-13 15:53:40,397 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=1229, PETRI_DIFFERENCE_MINUEND_FLOW=416, PETRI_DIFFERENCE_MINUEND_PLACES=73, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=105, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=42, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=63, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=548, PETRI_PLACES=83, PETRI_TRANSITIONS=105} [2022-12-13 15:53:40,397 INFO L288 CegarLoopForPetriNet]: 99 programPoint places, -16 predicate places. [2022-12-13 15:53:40,397 INFO L495 AbstractCegarLoop]: Abstraction has has 83 places, 105 transitions, 548 flow [2022-12-13 15:53:40,398 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 408.125) internal successors, (3265), 8 states have internal predecessors, (3265), 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 15:53:40,398 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 15:53:40,398 INFO L209 CegarLoopForPetriNet]: trace histogram [4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 15:53:40,405 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ba53e26-6d8f-4bc4-a046-812055e38b0b/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2022-12-13 15:53:40,599 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ba53e26-6d8f-4bc4-a046-812055e38b0b/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 15:53:40,600 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (and 121 more)] === [2022-12-13 15:53:40,601 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 15:53:40,601 INFO L85 PathProgramCache]: Analyzing trace with hash 1153477793, now seen corresponding path program 2 times [2022-12-13 15:53:40,601 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 15:53:40,602 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2087965754] [2022-12-13 15:53:40,602 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:53:40,603 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 15:53:40,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:53:40,783 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2022-12-13 15:53:40,783 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 15:53:40,783 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2087965754] [2022-12-13 15:53:40,783 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2087965754] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 15:53:40,783 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1479510138] [2022-12-13 15:53:40,783 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-12-13 15:53:40,784 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 15:53:40,784 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ba53e26-6d8f-4bc4-a046-812055e38b0b/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 15:53:40,785 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ba53e26-6d8f-4bc4-a046-812055e38b0b/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 15:53:40,785 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ba53e26-6d8f-4bc4-a046-812055e38b0b/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-12-13 15:53:41,370 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-12-13 15:53:41,370 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-13 15:53:41,372 INFO L263 TraceCheckSpWp]: Trace formula consists of 291 conjuncts, 5 conjunts are in the unsatisfiable core [2022-12-13 15:53:41,374 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 15:53:41,385 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2022-12-13 15:53:41,385 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 15:53:41,385 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1479510138] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 15:53:41,386 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-13 15:53:41,386 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [6] total 7 [2022-12-13 15:53:41,386 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2129959035] [2022-12-13 15:53:41,386 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 15:53:41,386 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 15:53:41,386 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 15:53:41,387 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 15:53:41,387 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-12-13 15:53:41,444 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 437 out of 1229 [2022-12-13 15:53:41,445 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 83 places, 105 transitions, 548 flow. Second operand has 3 states, 3 states have (on average 442.0) internal successors, (1326), 3 states have internal predecessors, (1326), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:53:41,445 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 15:53:41,445 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 437 of 1229 [2022-12-13 15:53:41,445 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 15:53:43,089 INFO L130 PetriNetUnfolder]: 1680/2687 cut-off events. [2022-12-13 15:53:43,089 INFO L131 PetriNetUnfolder]: For 40/40 co-relation queries the response was YES. [2022-12-13 15:53:43,091 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5565 conditions, 2687 events. 1680/2687 cut-off events. For 40/40 co-relation queries the response was YES. Maximal size of possible extension queue 381. Compared 15344 event pairs, 1320 based on Foata normal form. 2/841 useless extension candidates. Maximal degree in co-relation 5548. Up to 2687 conditions per place. [2022-12-13 15:53:43,094 INFO L137 encePairwiseOnDemand]: 1226/1229 looper letters, 102 selfloop transitions, 1 changer transitions 0/103 dead transitions. [2022-12-13 15:53:43,095 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 83 places, 103 transitions, 728 flow [2022-12-13 15:53:43,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 15:53:43,095 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 15:53:43,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1384 transitions. [2022-12-13 15:53:43,097 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.3753729319229726 [2022-12-13 15:53:43,097 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1384 transitions. [2022-12-13 15:53:43,097 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1384 transitions. [2022-12-13 15:53:43,098 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 15:53:43,098 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1384 transitions. [2022-12-13 15:53:43,099 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 461.3333333333333) internal successors, (1384), 3 states have internal predecessors, (1384), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:53:43,101 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1229.0) internal successors, (4916), 4 states have internal predecessors, (4916), 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 15:53:43,101 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1229.0) internal successors, (4916), 4 states have internal predecessors, (4916), 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 15:53:43,102 INFO L175 Difference]: Start difference. First operand has 83 places, 105 transitions, 548 flow. Second operand 3 states and 1384 transitions. [2022-12-13 15:53:43,102 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 83 places, 103 transitions, 728 flow [2022-12-13 15:53:43,103 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 73 places, 103 transitions, 568 flow, removed 8 selfloop flow, removed 10 redundant places. [2022-12-13 15:53:43,103 INFO L231 Difference]: Finished difference. Result has 73 places, 103 transitions, 364 flow [2022-12-13 15:53:43,104 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=1229, PETRI_DIFFERENCE_MINUEND_FLOW=362, PETRI_DIFFERENCE_MINUEND_PLACES=71, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=103, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=102, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=364, PETRI_PLACES=73, PETRI_TRANSITIONS=103} [2022-12-13 15:53:43,104 INFO L288 CegarLoopForPetriNet]: 99 programPoint places, -26 predicate places. [2022-12-13 15:53:43,104 INFO L495 AbstractCegarLoop]: Abstraction has has 73 places, 103 transitions, 364 flow [2022-12-13 15:53:43,104 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 442.0) internal successors, (1326), 3 states have internal predecessors, (1326), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:53:43,104 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 15:53:43,104 INFO L209 CegarLoopForPetriNet]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 15:53:43,111 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ba53e26-6d8f-4bc4-a046-812055e38b0b/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2022-12-13 15:53:43,305 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ba53e26-6d8f-4bc4-a046-812055e38b0b/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 15:53:43,306 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting thread1Err10ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (and 121 more)] === [2022-12-13 15:53:43,307 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 15:53:43,307 INFO L85 PathProgramCache]: Analyzing trace with hash -1800874653, now seen corresponding path program 1 times [2022-12-13 15:53:43,308 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 15:53:43,308 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [580073301] [2022-12-13 15:53:43,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:53:43,309 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 15:53:43,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:53:43,556 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2022-12-13 15:53:43,557 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 15:53:43,557 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [580073301] [2022-12-13 15:53:43,557 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [580073301] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 15:53:43,557 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1191324445] [2022-12-13 15:53:43,557 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:53:43,558 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 15:53:43,558 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ba53e26-6d8f-4bc4-a046-812055e38b0b/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 15:53:43,559 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ba53e26-6d8f-4bc4-a046-812055e38b0b/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 15:53:43,560 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ba53e26-6d8f-4bc4-a046-812055e38b0b/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-12-13 15:53:44,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:53:44,120 INFO L263 TraceCheckSpWp]: Trace formula consists of 708 conjuncts, 8 conjunts are in the unsatisfiable core [2022-12-13 15:53:44,122 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 15:53:44,166 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2022-12-13 15:53:44,166 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 15:53:44,209 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2022-12-13 15:53:44,209 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1191324445] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 15:53:44,209 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-13 15:53:44,209 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6, 6] total 17 [2022-12-13 15:53:44,209 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1045165487] [2022-12-13 15:53:44,209 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-13 15:53:44,210 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-12-13 15:53:44,210 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 15:53:44,210 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-12-13 15:53:44,211 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=116, Invalid=156, Unknown=0, NotChecked=0, Total=272 [2022-12-13 15:53:44,602 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 405 out of 1229 [2022-12-13 15:53:44,605 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 73 places, 103 transitions, 364 flow. Second operand has 17 states, 17 states have (on average 407.70588235294116) internal successors, (6931), 17 states have internal predecessors, (6931), 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 15:53:44,606 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 15:53:44,606 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 405 of 1229 [2022-12-13 15:53:44,606 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 15:53:46,470 INFO L130 PetriNetUnfolder]: 1680/2701 cut-off events. [2022-12-13 15:53:46,470 INFO L131 PetriNetUnfolder]: For 48/48 co-relation queries the response was YES. [2022-12-13 15:53:46,472 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5524 conditions, 2701 events. 1680/2701 cut-off events. For 48/48 co-relation queries the response was YES. Maximal size of possible extension queue 379. Compared 15316 event pairs, 1320 based on Foata normal form. 12/860 useless extension candidates. Maximal degree in co-relation 5511. Up to 2656 conditions per place. [2022-12-13 15:53:46,475 INFO L137 encePairwiseOnDemand]: 1212/1229 looper letters, 63 selfloop transitions, 54 changer transitions 0/117 dead transitions. [2022-12-13 15:53:46,476 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 89 places, 117 transitions, 654 flow [2022-12-13 15:53:46,476 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-12-13 15:53:46,476 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2022-12-13 15:53:46,484 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 7016 transitions. [2022-12-13 15:53:46,485 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.33580625089742977 [2022-12-13 15:53:46,486 INFO L72 ComplementDD]: Start complementDD. Operand 17 states and 7016 transitions. [2022-12-13 15:53:46,486 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 7016 transitions. [2022-12-13 15:53:46,487 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 15:53:46,487 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 17 states and 7016 transitions. [2022-12-13 15:53:46,494 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 18 states, 17 states have (on average 412.70588235294116) internal successors, (7016), 17 states have internal predecessors, (7016), 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 15:53:46,506 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 18 states, 18 states have (on average 1229.0) internal successors, (22122), 18 states have internal predecessors, (22122), 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 15:53:46,509 INFO L81 ComplementDD]: Finished complementDD. Result has 18 states, 18 states have (on average 1229.0) internal successors, (22122), 18 states have internal predecessors, (22122), 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 15:53:46,509 INFO L175 Difference]: Start difference. First operand has 73 places, 103 transitions, 364 flow. Second operand 17 states and 7016 transitions. [2022-12-13 15:53:46,509 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 89 places, 117 transitions, 654 flow [2022-12-13 15:53:46,510 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 88 places, 117 transitions, 653 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-12-13 15:53:46,511 INFO L231 Difference]: Finished difference. Result has 95 places, 117 transitions, 607 flow [2022-12-13 15:53:46,511 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=1229, PETRI_DIFFERENCE_MINUEND_FLOW=363, PETRI_DIFFERENCE_MINUEND_PLACES=72, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=103, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=42, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=59, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=607, PETRI_PLACES=95, PETRI_TRANSITIONS=117} [2022-12-13 15:53:46,512 INFO L288 CegarLoopForPetriNet]: 99 programPoint places, -4 predicate places. [2022-12-13 15:53:46,512 INFO L495 AbstractCegarLoop]: Abstraction has has 95 places, 117 transitions, 607 flow [2022-12-13 15:53:46,513 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 407.70588235294116) internal successors, (6931), 17 states have internal predecessors, (6931), 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 15:53:46,513 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 15:53:46,513 INFO L209 CegarLoopForPetriNet]: trace histogram [10, 10, 5, 5, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 15:53:46,520 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ba53e26-6d8f-4bc4-a046-812055e38b0b/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2022-12-13 15:53:46,713 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ba53e26-6d8f-4bc4-a046-812055e38b0b/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-12-13 15:53:46,714 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting thread1Err10ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (and 121 more)] === [2022-12-13 15:53:46,714 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 15:53:46,714 INFO L85 PathProgramCache]: Analyzing trace with hash 1163734308, now seen corresponding path program 2 times [2022-12-13 15:53:46,714 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 15:53:46,714 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1919318015] [2022-12-13 15:53:46,714 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:53:46,714 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 15:53:46,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:53:47,071 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 125 trivial. 0 not checked. [2022-12-13 15:53:47,071 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 15:53:47,071 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1919318015] [2022-12-13 15:53:47,072 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1919318015] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 15:53:47,072 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1019511607] [2022-12-13 15:53:47,072 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-12-13 15:53:47,072 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 15:53:47,072 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ba53e26-6d8f-4bc4-a046-812055e38b0b/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 15:53:47,073 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ba53e26-6d8f-4bc4-a046-812055e38b0b/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 15:53:47,074 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ba53e26-6d8f-4bc4-a046-812055e38b0b/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-12-13 15:53:47,759 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-12-13 15:53:47,759 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-13 15:53:47,763 INFO L263 TraceCheckSpWp]: Trace formula consists of 862 conjuncts, 14 conjunts are in the unsatisfiable core [2022-12-13 15:53:47,765 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 15:53:47,925 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 125 trivial. 0 not checked. [2022-12-13 15:53:47,926 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 15:53:48,114 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 125 trivial. 0 not checked. [2022-12-13 15:53:48,114 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1019511607] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 15:53:48,114 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-13 15:53:48,114 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13, 13] total 35 [2022-12-13 15:53:48,114 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [981330521] [2022-12-13 15:53:48,114 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-13 15:53:48,115 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 35 states [2022-12-13 15:53:48,115 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 15:53:48,115 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2022-12-13 15:53:48,115 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=468, Invalid=722, Unknown=0, NotChecked=0, Total=1190 [2022-12-13 15:53:49,670 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 405 out of 1229 [2022-12-13 15:53:49,681 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 95 places, 117 transitions, 607 flow. Second operand has 35 states, 35 states have (on average 406.48571428571427) internal successors, (14227), 35 states have internal predecessors, (14227), 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 15:53:49,681 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 15:53:49,681 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 405 of 1229 [2022-12-13 15:53:49,681 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 15:53:51,630 INFO L130 PetriNetUnfolder]: 1680/2707 cut-off events. [2022-12-13 15:53:51,630 INFO L131 PetriNetUnfolder]: For 188/188 co-relation queries the response was YES. [2022-12-13 15:53:51,633 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5649 conditions, 2707 events. 1680/2707 cut-off events. For 188/188 co-relation queries the response was YES. Maximal size of possible extension queue 380. Compared 15325 event pairs, 1320 based on Foata normal form. 6/865 useless extension candidates. Maximal degree in co-relation 5628. Up to 2656 conditions per place. [2022-12-13 15:53:51,637 INFO L137 encePairwiseOnDemand]: 1212/1229 looper letters, 63 selfloop transitions, 60 changer transitions 0/123 dead transitions. [2022-12-13 15:53:51,637 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 112 places, 123 transitions, 889 flow [2022-12-13 15:53:51,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-12-13 15:53:51,637 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2022-12-13 15:53:51,643 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 7419 transitions. [2022-12-13 15:53:51,644 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.33536750745863847 [2022-12-13 15:53:51,644 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 7419 transitions. [2022-12-13 15:53:51,645 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 7419 transitions. [2022-12-13 15:53:51,646 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 15:53:51,647 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 7419 transitions. [2022-12-13 15:53:51,653 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 412.1666666666667) internal successors, (7419), 18 states have internal predecessors, (7419), 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 15:53:51,664 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 1229.0) internal successors, (23351), 19 states have internal predecessors, (23351), 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 15:53:51,665 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 1229.0) internal successors, (23351), 19 states have internal predecessors, (23351), 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 15:53:51,666 INFO L175 Difference]: Start difference. First operand has 95 places, 117 transitions, 607 flow. Second operand 18 states and 7419 transitions. [2022-12-13 15:53:51,666 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 112 places, 123 transitions, 889 flow [2022-12-13 15:53:51,668 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 109 places, 123 transitions, 857 flow, removed 6 selfloop flow, removed 3 redundant places. [2022-12-13 15:53:51,669 INFO L231 Difference]: Finished difference. Result has 112 places, 123 transitions, 777 flow [2022-12-13 15:53:51,669 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=1229, PETRI_DIFFERENCE_MINUEND_FLOW=575, PETRI_DIFFERENCE_MINUEND_PLACES=92, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=117, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=56, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=61, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=777, PETRI_PLACES=112, PETRI_TRANSITIONS=123} [2022-12-13 15:53:51,669 INFO L288 CegarLoopForPetriNet]: 99 programPoint places, 13 predicate places. [2022-12-13 15:53:51,669 INFO L495 AbstractCegarLoop]: Abstraction has has 112 places, 123 transitions, 777 flow [2022-12-13 15:53:51,671 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 35 states, 35 states have (on average 406.48571428571427) internal successors, (14227), 35 states have internal predecessors, (14227), 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 15:53:51,671 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 15:53:51,671 INFO L209 CegarLoopForPetriNet]: trace histogram [13, 13, 5, 5, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 15:53:51,681 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ba53e26-6d8f-4bc4-a046-812055e38b0b/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-12-13 15:53:51,872 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ba53e26-6d8f-4bc4-a046-812055e38b0b/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 15:53:51,873 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting thread1Err10ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (and 121 more)] === [2022-12-13 15:53:51,873 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 15:53:51,874 INFO L85 PathProgramCache]: Analyzing trace with hash 1219271602, now seen corresponding path program 3 times [2022-12-13 15:53:51,874 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 15:53:51,875 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [301303971] [2022-12-13 15:53:51,875 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:53:51,875 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 15:53:52,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:53:54,618 INFO L134 CoverageAnalysis]: Checked inductivity of 252 backedges. 0 proven. 72 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2022-12-13 15:53:54,618 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 15:53:54,618 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [301303971] [2022-12-13 15:53:54,618 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [301303971] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 15:53:54,619 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [220832791] [2022-12-13 15:53:54,619 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-12-13 15:53:54,619 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 15:53:54,619 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ba53e26-6d8f-4bc4-a046-812055e38b0b/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 15:53:54,620 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ba53e26-6d8f-4bc4-a046-812055e38b0b/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 15:53:54,621 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ba53e26-6d8f-4bc4-a046-812055e38b0b/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-12-13 15:54:09,824 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 8 check-sat command(s) [2022-12-13 15:54:09,824 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-13 15:54:09,836 INFO L263 TraceCheckSpWp]: Trace formula consists of 928 conjuncts, 121 conjunts are in the unsatisfiable core [2022-12-13 15:54:09,846 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 15:54:09,895 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-12-13 15:54:09,953 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2022-12-13 15:54:10,041 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-12-13 15:54:10,042 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2022-12-13 15:54:10,095 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 20 treesize of output 22 [2022-12-13 15:54:10,121 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 20 treesize of output 22 [2022-12-13 15:54:10,142 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 20 treesize of output 22 [2022-12-13 15:54:10,165 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 20 treesize of output 22 [2022-12-13 15:54:10,227 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-12-13 15:54:10,227 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2022-12-13 15:54:10,248 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 20 treesize of output 22 [2022-12-13 15:54:10,274 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 20 treesize of output 22 [2022-12-13 15:54:10,295 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 20 treesize of output 22 [2022-12-13 15:54:10,312 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 20 treesize of output 22 [2022-12-13 15:54:10,345 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-12-13 15:54:10,345 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2022-12-13 15:54:10,359 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 20 treesize of output 22 [2022-12-13 15:54:10,386 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 20 treesize of output 22 [2022-12-13 15:54:10,409 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 20 treesize of output 22 [2022-12-13 15:54:10,431 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 20 treesize of output 22 [2022-12-13 15:54:10,459 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-12-13 15:54:10,460 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2022-12-13 15:54:10,477 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 20 treesize of output 22 [2022-12-13 15:54:10,496 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 20 treesize of output 22 [2022-12-13 15:54:10,515 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 20 treesize of output 22 [2022-12-13 15:54:10,535 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 20 treesize of output 22 [2022-12-13 15:54:10,555 INFO L321 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-12-13 15:54:10,556 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2022-12-13 15:54:10,595 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 22 [2022-12-13 15:54:10,615 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 22 [2022-12-13 15:54:10,632 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 20 treesize of output 22 [2022-12-13 15:54:10,648 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 20 treesize of output 22 [2022-12-13 15:54:10,669 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 20 treesize of output 22 [2022-12-13 15:54:10,682 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 20 treesize of output 22 [2022-12-13 15:54:10,704 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 20 treesize of output 22 [2022-12-13 15:54:10,722 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 20 treesize of output 22 [2022-12-13 15:54:10,740 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 20 treesize of output 22 [2022-12-13 15:54:10,757 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 20 treesize of output 22 [2022-12-13 15:54:10,774 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 20 treesize of output 22 [2022-12-13 15:54:10,795 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 20 treesize of output 22 [2022-12-13 15:54:10,813 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 20 treesize of output 22 [2022-12-13 15:54:10,914 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-12-13 15:54:10,915 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 1 case distinctions, treesize of input 20 treesize of output 26 [2022-12-13 15:54:10,923 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 11 treesize of output 5 [2022-12-13 15:54:11,018 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-12-13 15:54:11,018 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 1 case distinctions, treesize of input 31 treesize of output 37 [2022-12-13 15:54:11,116 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-12-13 15:54:11,116 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 1 case distinctions, treesize of input 31 treesize of output 37 [2022-12-13 15:54:11,219 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-12-13 15:54:11,219 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 1 case distinctions, treesize of input 31 treesize of output 37 [2022-12-13 15:54:11,339 INFO L321 Elim1Store]: treesize reduction 27, result has 48.1 percent of original size [2022-12-13 15:54:11,340 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 1 case distinctions, treesize of input 38 treesize of output 51 [2022-12-13 15:54:11,468 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 15:54:11,469 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 15:54:11,470 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-13 15:54:11,474 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-12-13 15:54:11,474 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 40 treesize of output 42 [2022-12-13 15:54:11,578 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 15:54:11,579 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 15:54:11,580 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-13 15:54:11,583 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-12-13 15:54:11,584 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 40 treesize of output 42 [2022-12-13 15:54:11,686 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-13 15:54:11,717 INFO L321 Elim1Store]: treesize reduction 56, result has 41.1 percent of original size [2022-12-13 15:54:11,717 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 40 treesize of output 60 [2022-12-13 15:54:12,073 INFO L321 Elim1Store]: treesize reduction 72, result has 62.1 percent of original size [2022-12-13 15:54:12,074 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 6 case distinctions, treesize of input 76 treesize of output 167 [2022-12-13 15:54:13,228 INFO L321 Elim1Store]: treesize reduction 72, result has 62.1 percent of original size [2022-12-13 15:54:13,228 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 6 case distinctions, treesize of input 78 treesize of output 169 [2022-12-13 15:54:14,953 INFO L321 Elim1Store]: treesize reduction 72, result has 62.1 percent of original size [2022-12-13 15:54:14,954 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 6 case distinctions, treesize of input 78 treesize of output 169 [2022-12-13 15:54:18,856 INFO L321 Elim1Store]: treesize reduction 100, result has 65.2 percent of original size [2022-12-13 15:54:18,857 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 10 case distinctions, treesize of input 97 treesize of output 241 [2022-12-13 15:55:04,566 WARN L233 SmtUtils]: Spent 31.25s on a formula simplification. DAG size of input: 423 DAG size of output: 61 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-13 15:55:04,807 INFO L321 Elim1Store]: treesize reduction 118, result has 67.9 percent of original size [2022-12-13 15:55:04,808 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 15 case distinctions, treesize of input 112 treesize of output 305 [2022-12-13 15:57:24,647 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 15:57:24,647 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 15:57:24,682 INFO L134 CoverageAnalysis]: Checked inductivity of 252 backedges. 6 proven. 119 refuted. 0 times theorem prover too weak. 127 trivial. 0 not checked. [2022-12-13 15:57:24,682 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 15:57:28,292 WARN L837 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_create_fresh_int_array_~i~0#1_638| Int) (|v_ULTIMATE.start_create_fresh_int_array_~i~0#1_639| Int) (v_ArrVal_1193 Int) (v_ArrVal_1196 Int) (v_ArrVal_1189 Int) (v_ArrVal_1188 Int) (|v_ULTIMATE.start_create_fresh_int_array_~i~0#1_640| Int) (|v_ULTIMATE.start_create_fresh_int_array_~i~0#1_641| Int) (v_ArrVal_1197 (Array Int Int)) (v_ArrVal_1191 Int)) (or (not (<= |v_ULTIMATE.start_create_fresh_int_array_~i~0#1_641| (+ |c_ULTIMATE.start_create_fresh_int_array_~i~0#1| 1))) (not (<= |v_ULTIMATE.start_create_fresh_int_array_~i~0#1_639| (+ 1 |v_ULTIMATE.start_create_fresh_int_array_~i~0#1_640|))) (not (<= |v_ULTIMATE.start_create_fresh_int_array_~i~0#1_640| (+ 1 |v_ULTIMATE.start_create_fresh_int_array_~i~0#1_641|))) (not (<= |v_ULTIMATE.start_create_fresh_int_array_~i~0#1_638| (+ 1 |v_ULTIMATE.start_create_fresh_int_array_~i~0#1_639|))) (< (+ 1 |v_ULTIMATE.start_create_fresh_int_array_~i~0#1_638|) |c_ULTIMATE.start_create_fresh_int_array_~size#1|) (< 0 (+ (select (select (store (store |c_#memory_int| |c_ULTIMATE.start_create_fresh_int_array_~arr~0#1.base| (store (store (store (store (store (select |c_#memory_int| |c_ULTIMATE.start_create_fresh_int_array_~arr~0#1.base|) (+ (* 4 |c_ULTIMATE.start_create_fresh_int_array_~i~0#1|) |c_ULTIMATE.start_create_fresh_int_array_~arr~0#1.offset|) v_ArrVal_1188) (+ (* 4 |v_ULTIMATE.start_create_fresh_int_array_~i~0#1_641|) |c_ULTIMATE.start_create_fresh_int_array_~arr~0#1.offset|) v_ArrVal_1189) (+ (* 4 |v_ULTIMATE.start_create_fresh_int_array_~i~0#1_640|) |c_ULTIMATE.start_create_fresh_int_array_~arr~0#1.offset|) v_ArrVal_1191) (+ (* 4 |v_ULTIMATE.start_create_fresh_int_array_~i~0#1_639|) |c_ULTIMATE.start_create_fresh_int_array_~arr~0#1.offset|) v_ArrVal_1193) (+ (* 4 |v_ULTIMATE.start_create_fresh_int_array_~i~0#1_638|) |c_ULTIMATE.start_create_fresh_int_array_~arr~0#1.offset|) v_ArrVal_1196)) |c_ULTIMATE.start_main_~#t1~0#1.base| v_ArrVal_1197) c_~index_of_4~0.base) (+ c_~index_of_4~0.offset 16)) 4294967296)))) is different from false [2022-12-13 15:57:36,565 INFO L321 Elim1Store]: treesize reduction 1428, result has 20.8 percent of original size [2022-12-13 15:57:36,565 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 9 case distinctions, treesize of input 81 treesize of output 393 [2022-12-13 15:57:37,198 WARN L837 $PredicateComparison]: unable to prove that (let ((.cse0 (+ c_~index_of_4~0.offset 16))) (and (or (< (+ 8 |c_ULTIMATE.start_create_fresh_int_array_~i~0#1|) |c_ULTIMATE.start_create_fresh_int_array_~size#1|) (forall ((v_arrayElimArr_1 (Array Int Int)) (v_ArrVal_1197 (Array Int Int))) (< 0 (+ (select (select (store (store |c_#memory_int| |c_ULTIMATE.start_create_fresh_int_array_~arr~0#1.base| v_arrayElimArr_1) |c_ULTIMATE.start_main_~#t1~0#1.base| v_ArrVal_1197) c_~index_of_4~0.base) .cse0) 4294967296)))) (forall ((v_arrayElimArr_1 (Array Int Int)) (v_ArrVal_1197 (Array Int Int))) (or (< 0 (+ (select (select (store (store |c_#memory_int| |c_ULTIMATE.start_create_fresh_int_array_~arr~0#1.base| v_arrayElimArr_1) |c_ULTIMATE.start_main_~#t1~0#1.base| v_ArrVal_1197) c_~index_of_4~0.base) .cse0) 4294967296)) (< (+ (select v_arrayElimArr_1 (+ (* 4 |c_ULTIMATE.start_create_fresh_int_array_~i~0#1|) 8 |c_ULTIMATE.start_create_fresh_int_array_~arr~0#1.offset|)) 2147483648) 0))))) is different from false [2022-12-13 15:57:37,482 WARN L837 $PredicateComparison]: unable to prove that (let ((.cse0 (+ c_~index_of_4~0.offset 16))) (and (or (< (+ 10 |c_ULTIMATE.start_create_fresh_int_array_~i~0#1|) |c_ULTIMATE.start_create_fresh_int_array_~size#1|) (forall ((|ULTIMATE.start_create_fresh_int_array_~arr~0#1.base| Int) (v_arrayElimArr_1 (Array Int Int)) (v_ArrVal_1197 (Array Int Int))) (< 0 (+ (select (select (store (store |c_#memory_int| |ULTIMATE.start_create_fresh_int_array_~arr~0#1.base| v_arrayElimArr_1) |c_ULTIMATE.start_main_~#t1~0#1.base| v_ArrVal_1197) c_~index_of_4~0.base) .cse0) 4294967296)))) (forall ((|ULTIMATE.start_create_fresh_int_array_~arr~0#1.base| Int) (v_arrayElimArr_1 (Array Int Int)) (v_ArrVal_1197 (Array Int Int))) (or (< 0 (+ (select (select (store (store |c_#memory_int| |ULTIMATE.start_create_fresh_int_array_~arr~0#1.base| v_arrayElimArr_1) |c_ULTIMATE.start_main_~#t1~0#1.base| v_ArrVal_1197) c_~index_of_4~0.base) .cse0) 4294967296)) (< (+ (select v_arrayElimArr_1 (+ 16 (* 4 |c_ULTIMATE.start_create_fresh_int_array_~i~0#1|) |c_ULTIMATE.start_create_fresh_int_array_~arr~0#1.offset|)) 2147483648) 0))))) is different from false [2022-12-13 15:57:37,498 WARN L837 $PredicateComparison]: unable to prove that (forall ((|ULTIMATE.start_create_fresh_int_array_~arr~0#1.base| Int) (v_arrayElimArr_1 (Array Int Int)) (v_ArrVal_1197 (Array Int Int))) (or (< 0 (+ (select (select (store (store |c_#memory_int| |ULTIMATE.start_create_fresh_int_array_~arr~0#1.base| v_arrayElimArr_1) |c_ULTIMATE.start_main_~#t1~0#1.base| v_ArrVal_1197) c_~index_of_4~0.base) (+ c_~index_of_4~0.offset 16)) 4294967296)) (< (+ (select v_arrayElimArr_1 16) 2147483648) 0))) is different from false [2022-12-13 15:57:46,169 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-13 15:57:46,170 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 38 treesize of output 39 [2022-12-13 15:57:46,188 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-13 15:57:46,189 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 4883 treesize of output 4837 [2022-12-13 15:57:46,217 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 4822 treesize of output 4310 [2022-12-13 15:57:46,253 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-13 15:57:46,253 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 4317 treesize of output 4067 [2022-12-13 15:57:46,281 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 4054 treesize of output 3990 [2022-12-13 15:57:46,311 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 2011 treesize of output 1979 [2022-12-13 15:57:46,337 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 3958 treesize of output 3830 [2022-12-13 15:58:00,714 INFO L321 Elim1Store]: treesize reduction 16, result has 36.0 percent of original size [2022-12-13 15:58:00,715 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 146 treesize of output 148 [2022-12-13 15:58:00,833 INFO L134 CoverageAnalysis]: Checked inductivity of 252 backedges. 0 proven. 75 refuted. 1 times theorem prover too weak. 127 trivial. 49 not checked. [2022-12-13 15:58:00,834 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [220832791] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 15:58:00,834 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-13 15:58:00,834 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 22, 27] total 66 [2022-12-13 15:58:00,834 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1912175878] [2022-12-13 15:58:00,834 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-13 15:58:00,834 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 68 states [2022-12-13 15:58:00,835 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 15:58:00,835 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 68 interpolants. [2022-12-13 15:58:00,836 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=486, Invalid=3432, Unknown=130, NotChecked=508, Total=4556 [2022-12-13 15:58:00,844 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 331 out of 1229 [2022-12-13 15:58:00,853 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 112 places, 123 transitions, 777 flow. Second operand has 68 states, 68 states have (on average 332.5735294117647) internal successors, (22615), 68 states have internal predecessors, (22615), 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 15:58:00,853 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 15:58:00,853 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 331 of 1229 [2022-12-13 15:58:00,853 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 15:58:02,960 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-12-13 15:58:09,585 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0, 1] [2022-12-13 15:58:20,729 INFO L130 PetriNetUnfolder]: 2239/3675 cut-off events. [2022-12-13 15:58:20,729 INFO L131 PetriNetUnfolder]: For 113/113 co-relation queries the response was YES. [2022-12-13 15:58:20,733 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7673 conditions, 3675 events. 2239/3675 cut-off events. For 113/113 co-relation queries the response was YES. Maximal size of possible extension queue 514. Compared 23900 event pairs, 247 based on Foata normal form. 0/1192 useless extension candidates. Maximal degree in co-relation 7648. Up to 2373 conditions per place. [2022-12-13 15:58:20,739 INFO L137 encePairwiseOnDemand]: 1188/1229 looper letters, 139 selfloop transitions, 70 changer transitions 0/209 dead transitions. [2022-12-13 15:58:20,740 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 137 places, 209 transitions, 1371 flow [2022-12-13 15:58:20,741 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-12-13 15:58:20,741 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2022-12-13 15:58:20,748 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 8803 transitions. [2022-12-13 15:58:20,750 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.2754897665394004 [2022-12-13 15:58:20,750 INFO L72 ComplementDD]: Start complementDD. Operand 26 states and 8803 transitions. [2022-12-13 15:58:20,750 INFO L73 IsDeterministic]: Start isDeterministic. Operand 26 states and 8803 transitions. [2022-12-13 15:58:20,752 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 15:58:20,752 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 26 states and 8803 transitions. [2022-12-13 15:58:20,759 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 27 states, 26 states have (on average 338.5769230769231) internal successors, (8803), 26 states have internal predecessors, (8803), 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 15:58:20,777 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 27 states, 27 states have (on average 1229.0) internal successors, (33183), 27 states have internal predecessors, (33183), 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 15:58:20,780 INFO L81 ComplementDD]: Finished complementDD. Result has 27 states, 27 states have (on average 1229.0) internal successors, (33183), 27 states have internal predecessors, (33183), 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 15:58:20,780 INFO L175 Difference]: Start difference. First operand has 112 places, 123 transitions, 777 flow. Second operand 26 states and 8803 transitions. [2022-12-13 15:58:20,781 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 137 places, 209 transitions, 1371 flow [2022-12-13 15:58:20,783 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 126 places, 209 transitions, 1267 flow, removed 14 selfloop flow, removed 11 redundant places. [2022-12-13 15:58:20,785 INFO L231 Difference]: Finished difference. Result has 129 places, 149 transitions, 961 flow [2022-12-13 15:58:20,785 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=1229, PETRI_DIFFERENCE_MINUEND_FLOW=673, PETRI_DIFFERENCE_MINUEND_PLACES=101, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=123, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=51, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=60, PETRI_DIFFERENCE_SUBTRAHEND_STATES=26, PETRI_FLOW=961, PETRI_PLACES=129, PETRI_TRANSITIONS=149} [2022-12-13 15:58:20,786 INFO L288 CegarLoopForPetriNet]: 99 programPoint places, 30 predicate places. [2022-12-13 15:58:20,786 INFO L495 AbstractCegarLoop]: Abstraction has has 129 places, 149 transitions, 961 flow [2022-12-13 15:58:20,788 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 68 states, 68 states have (on average 332.5735294117647) internal successors, (22615), 68 states have internal predecessors, (22615), 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 15:58:20,788 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 15:58:20,788 INFO L209 CegarLoopForPetriNet]: trace histogram [13, 13, 5, 5, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 15:58:20,805 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ba53e26-6d8f-4bc4-a046-812055e38b0b/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2022-12-13 15:58:20,989 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ba53e26-6d8f-4bc4-a046-812055e38b0b/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2022-12-13 15:58:20,990 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting thread1Err13ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (and 121 more)] === [2022-12-13 15:58:20,991 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 15:58:20,992 INFO L85 PathProgramCache]: Analyzing trace with hash 1219271606, now seen corresponding path program 1 times [2022-12-13 15:58:20,992 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 15:58:20,992 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [639391405] [2022-12-13 15:58:20,993 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:58:20,993 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 15:58:21,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:58:24,222 INFO L134 CoverageAnalysis]: Checked inductivity of 252 backedges. 0 proven. 62 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2022-12-13 15:58:24,223 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 15:58:24,223 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [639391405] [2022-12-13 15:58:24,223 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [639391405] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 15:58:24,224 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1716892276] [2022-12-13 15:58:24,224 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:58:24,224 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 15:58:24,225 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ba53e26-6d8f-4bc4-a046-812055e38b0b/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 15:58:24,227 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ba53e26-6d8f-4bc4-a046-812055e38b0b/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 15:58:24,229 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ba53e26-6d8f-4bc4-a046-812055e38b0b/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-12-13 15:58:24,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:58:24,897 INFO L263 TraceCheckSpWp]: Trace formula consists of 905 conjuncts, 100 conjunts are in the unsatisfiable core [2022-12-13 15:58:24,907 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 15:58:24,915 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 15:58:24,933 INFO L321 Elim1Store]: treesize reduction 20, result has 48.7 percent of original size [2022-12-13 15:58:24,933 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 12 treesize of output 24 [2022-12-13 15:58:25,082 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-12-13 15:58:25,143 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-12-13 15:58:25,143 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2022-12-13 15:58:25,180 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 15:58:25,201 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 15:58:25,223 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2022-12-13 15:58:25,243 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 15:58:25,257 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 15:58:25,287 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-12-13 15:58:25,287 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2022-12-13 15:58:25,339 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 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 15:58:25,353 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 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 15:58:25,381 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 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 15:58:25,410 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 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 15:58:25,519 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-12-13 15:58:25,519 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 22 treesize of output 33 [2022-12-13 15:58:25,627 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 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 15:58:25,661 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 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 15:58:25,707 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 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 15:58:25,731 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 4 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 15:58:25,875 INFO L321 Elim1Store]: treesize reduction 54, result has 34.1 percent of original size [2022-12-13 15:58:25,876 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 27 treesize of output 45 [2022-12-13 15:58:25,993 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 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 15:58:26,033 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 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 15:58:26,074 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 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 15:58:26,097 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 6 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 15:58:26,201 INFO L321 Elim1Store]: treesize reduction 54, result has 34.1 percent of original size [2022-12-13 15:58:26,202 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 27 treesize of output 45 [2022-12-13 15:58:26,303 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 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 15:58:26,362 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 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 15:58:26,406 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 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 15:58:26,431 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 6 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 15:58:26,552 INFO L321 Elim1Store]: treesize reduction 54, result has 34.1 percent of original size [2022-12-13 15:58:26,552 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 27 treesize of output 45 [2022-12-13 15:58:26,666 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 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 15:58:26,710 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 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 15:58:26,760 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 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 15:58:26,811 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 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 15:58:26,869 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 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 15:58:26,929 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 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 15:58:27,001 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 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 15:58:27,049 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 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 15:58:27,102 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 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 15:58:27,170 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 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 15:58:27,235 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 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 15:58:27,284 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 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 15:58:27,329 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 6 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 15:58:27,444 INFO L321 Elim1Store]: treesize reduction 12, result has 52.0 percent of original size [2022-12-13 15:58:27,445 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 21 treesize of output 25 [2022-12-13 15:58:27,509 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 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 15:58:27,525 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 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 15:58:27,545 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 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 15:58:27,567 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 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 15:58:27,599 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 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 15:58:27,619 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 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 15:58:27,644 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 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 15:58:27,656 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 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 15:58:27,685 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 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 15:58:27,704 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 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 15:58:27,715 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 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 15:58:27,737 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 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 15:58:27,767 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 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 15:58:27,827 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 15:58:27,828 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 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 15:58:27,875 INFO L134 CoverageAnalysis]: Checked inductivity of 252 backedges. 0 proven. 57 refuted. 0 times theorem prover too weak. 195 trivial. 0 not checked. [2022-12-13 15:58:27,876 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 15:58:28,029 WARN L837 $PredicateComparison]: unable to prove that (let ((.cse1 (+ c_~index_of_0~0.offset 16))) (and (forall ((v_ArrVal_1514 (Array Int Int)) (~index_of_4~0.offset Int)) (let ((.cse0 (store |c_#memory_int| |c_ULTIMATE.start_main_~#t1~0#1.base| v_ArrVal_1514))) (let ((.cse2 (select (select .cse0 c_~index_of_4~0.base) (+ 16 ~index_of_4~0.offset)))) (or (<= (select (select .cse0 c_~index_of_0~0.base) .cse1) (+ 2147483647 .cse2)) (not (<= .cse2 9223372039002259455)) (<= .cse2 0))))) (forall ((v_ArrVal_1514 (Array Int Int)) (~index_of_4~0.offset Int)) (let ((.cse3 (store |c_#memory_int| |c_ULTIMATE.start_main_~#t1~0#1.base| v_ArrVal_1514))) (let ((.cse4 (select (select .cse3 c_~index_of_4~0.base) (+ 16 ~index_of_4~0.offset)))) (or (<= (select (select .cse3 c_~index_of_0~0.base) .cse1) (+ 2147483647 .cse4)) (not (<= 0 .cse4)) (not (<= .cse4 0)))))))) is different from false [2022-12-13 15:58:28,061 WARN L837 $PredicateComparison]: unable to prove that (let ((.cse2 (+ c_~index_of_0~0.offset 16))) (and (forall ((v_ArrVal_1514 (Array Int Int)) (v_ArrVal_1513 (Array Int Int)) (~index_of_4~0.offset Int)) (let ((.cse1 (store (store |c_#memory_int| |c_ULTIMATE.start_create_fresh_int_array_~arr~0#1.base| v_ArrVal_1513) |c_ULTIMATE.start_main_~#t1~0#1.base| v_ArrVal_1514))) (let ((.cse0 (select (select .cse1 c_~index_of_4~0.base) (+ 16 ~index_of_4~0.offset)))) (or (not (<= .cse0 9223372039002259455)) (<= (select (select .cse1 c_~index_of_0~0.base) .cse2) (+ 2147483647 .cse0)) (<= .cse0 0))))) (forall ((v_ArrVal_1514 (Array Int Int)) (v_ArrVal_1513 (Array Int Int)) (~index_of_4~0.offset Int)) (let ((.cse4 (store (store |c_#memory_int| |c_ULTIMATE.start_create_fresh_int_array_~arr~0#1.base| v_ArrVal_1513) |c_ULTIMATE.start_main_~#t1~0#1.base| v_ArrVal_1514))) (let ((.cse3 (select (select .cse4 c_~index_of_4~0.base) (+ 16 ~index_of_4~0.offset)))) (or (not (<= .cse3 0)) (<= (select (select .cse4 c_~index_of_0~0.base) .cse2) (+ 2147483647 .cse3)) (not (<= 0 .cse3)))))))) is different from false [2022-12-13 16:01:25,740 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-13 16:01:25,740 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 574 treesize of output 491