./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/pthread-wmm/mix055_tso.oepc.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db15a001-347d-4b14-830e-13d9cfc598a5/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db15a001-347d-4b14-830e-13d9cfc598a5/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_db15a001-347d-4b14-830e-13d9cfc598a5/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db15a001-347d-4b14-830e-13d9cfc598a5/bin/uautomizer-uyxdKDjOR8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-wmm/mix055_tso.oepc.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db15a001-347d-4b14-830e-13d9cfc598a5/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_db15a001-347d-4b14-830e-13d9cfc598a5/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 9ec75f624fee0326f6dc01ebf4c0afe8f65e83cfa5c5726cd79e55765f7366f9 --- 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 19:49:38,722 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 19:49:38,723 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 19:49:38,741 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 19:49:38,742 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 19:49:38,743 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 19:49:38,744 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 19:49:38,746 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 19:49:38,748 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 19:49:38,748 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 19:49:38,749 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 19:49:38,751 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 19:49:38,751 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 19:49:38,752 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 19:49:38,753 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 19:49:38,754 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 19:49:38,755 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 19:49:38,756 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 19:49:38,757 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 19:49:38,759 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 19:49:38,761 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 19:49:38,762 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 19:49:38,763 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 19:49:38,764 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 19:49:38,776 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 19:49:38,777 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 19:49:38,777 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 19:49:38,778 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 19:49:38,778 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 19:49:38,779 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 19:49:38,779 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 19:49:38,780 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 19:49:38,781 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 19:49:38,781 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 19:49:38,782 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 19:49:38,782 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 19:49:38,783 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 19:49:38,783 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 19:49:38,783 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 19:49:38,784 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 19:49:38,785 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 19:49:38,785 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db15a001-347d-4b14-830e-13d9cfc598a5/bin/uautomizer-uyxdKDjOR8/config/svcomp-Overflow-32bit-Automizer_Default.epf [2022-12-13 19:49:38,818 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 19:49:38,818 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 19:49:38,819 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 19:49:38,819 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 19:49:38,820 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 19:49:38,820 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 19:49:38,820 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 19:49:38,821 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 19:49:38,821 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 19:49:38,821 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 19:49:38,821 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-13 19:49:38,821 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-13 19:49:38,821 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 19:49:38,822 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-13 19:49:38,822 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 19:49:38,822 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-13 19:49:38,822 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 19:49:38,822 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-13 19:49:38,822 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-12-13 19:49:38,823 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-13 19:49:38,823 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 19:49:38,823 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 19:49:38,823 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-13 19:49:38,823 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 19:49:38,823 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 19:49:38,824 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 19:49:38,824 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 19:49:38,824 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 19:49:38,824 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 19:49:38,824 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-13 19:49:38,824 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 19:49:38,825 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-13 19:49:38,825 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 19:49:38,825 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-13 19:49:38,825 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 19:49:38,825 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 19:49:38,825 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 19:49:38,825 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_db15a001-347d-4b14-830e-13d9cfc598a5/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db15a001-347d-4b14-830e-13d9cfc598a5/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9ec75f624fee0326f6dc01ebf4c0afe8f65e83cfa5c5726cd79e55765f7366f9 [2022-12-13 19:49:39,011 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 19:49:39,030 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 19:49:39,033 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 19:49:39,034 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 19:49:39,034 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 19:49:39,035 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db15a001-347d-4b14-830e-13d9cfc598a5/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/pthread-wmm/mix055_tso.oepc.i [2022-12-13 19:49:41,698 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 19:49:41,908 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 19:49:41,911 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db15a001-347d-4b14-830e-13d9cfc598a5/sv-benchmarks/c/pthread-wmm/mix055_tso.oepc.i [2022-12-13 19:49:41,922 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db15a001-347d-4b14-830e-13d9cfc598a5/bin/uautomizer-uyxdKDjOR8/data/9fab403d7/8068126de6fb41c9a73792d31eb28bf6/FLAG3d30605e5 [2022-12-13 19:49:42,255 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db15a001-347d-4b14-830e-13d9cfc598a5/bin/uautomizer-uyxdKDjOR8/data/9fab403d7/8068126de6fb41c9a73792d31eb28bf6 [2022-12-13 19:49:42,257 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 19:49:42,258 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 19:49:42,259 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 19:49:42,259 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 19:49:42,262 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 19:49:42,262 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 07:49:42" (1/1) ... [2022-12-13 19:49:42,263 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3f773351 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:49:42, skipping insertion in model container [2022-12-13 19:49:42,263 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 07:49:42" (1/1) ... [2022-12-13 19:49:42,268 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 19:49:42,309 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 19:49:42,448 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_db15a001-347d-4b14-830e-13d9cfc598a5/sv-benchmarks/c/pthread-wmm/mix055_tso.oepc.i[949,962] [2022-12-13 19:49:42,532 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 19:49:42,533 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 19:49:42,533 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 19:49:42,533 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 19:49:42,533 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 19:49:42,536 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 19:49:42,536 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 19:49:42,538 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 19:49:42,539 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 19:49:42,540 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 19:49:42,540 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 19:49:42,541 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 19:49:42,541 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 19:49:42,543 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 19:49:42,543 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 19:49:42,544 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 19:49:42,544 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 19:49:42,544 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 19:49:42,545 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 19:49:42,545 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 19:49:42,545 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 19:49:42,547 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 19:49:42,547 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 19:49:42,548 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 19:49:42,548 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 19:49:42,549 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 19:49:42,549 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 19:49:42,549 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 19:49:42,549 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 19:49:42,551 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 19:49:42,552 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 19:49:42,552 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 19:49:42,558 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 19:49:42,558 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 19:49:42,558 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 19:49:42,560 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 19:49:42,561 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 19:49:42,567 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 19:49:42,568 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 19:49:42,575 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 19:49:42,584 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_db15a001-347d-4b14-830e-13d9cfc598a5/sv-benchmarks/c/pthread-wmm/mix055_tso.oepc.i[949,962] [2022-12-13 19:49:42,602 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 19:49:42,602 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 19:49:42,602 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 19:49:42,602 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 19:49:42,603 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 19:49:42,604 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 19:49:42,605 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 19:49:42,605 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 19:49:42,605 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 19:49:42,606 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 19:49:42,607 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 19:49:42,607 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 19:49:42,607 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 19:49:42,609 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 19:49:42,609 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 19:49:42,609 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 19:49:42,610 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 19:49:42,610 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 19:49:42,610 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 19:49:42,610 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 19:49:42,611 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 19:49:42,612 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 19:49:42,613 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 19:49:42,613 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 19:49:42,613 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 19:49:42,614 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 19:49:42,614 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 19:49:42,614 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 19:49:42,614 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 19:49:42,616 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 19:49:42,616 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 19:49:42,617 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 19:49:42,620 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 19:49:42,620 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 19:49:42,620 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 19:49:42,622 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 19:49:42,622 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 19:49:42,627 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 19:49:42,628 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 19:49:42,650 INFO L208 MainTranslator]: Completed translation [2022-12-13 19:49:42,651 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:49:42 WrapperNode [2022-12-13 19:49:42,651 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 19:49:42,652 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 19:49:42,652 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 19:49:42,652 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 19:49:42,657 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:49:42" (1/1) ... [2022-12-13 19:49:42,668 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:49:42" (1/1) ... [2022-12-13 19:49:42,687 INFO L138 Inliner]: procedures = 177, calls = 67, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 160 [2022-12-13 19:49:42,687 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 19:49:42,688 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 19:49:42,688 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 19:49:42,688 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 19:49:42,695 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:49:42" (1/1) ... [2022-12-13 19:49:42,695 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:49:42" (1/1) ... [2022-12-13 19:49:42,697 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:49:42" (1/1) ... [2022-12-13 19:49:42,698 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:49:42" (1/1) ... [2022-12-13 19:49:42,703 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:49:42" (1/1) ... [2022-12-13 19:49:42,704 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:49:42" (1/1) ... [2022-12-13 19:49:42,706 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:49:42" (1/1) ... [2022-12-13 19:49:42,707 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:49:42" (1/1) ... [2022-12-13 19:49:42,709 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 19:49:42,710 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 19:49:42,710 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 19:49:42,710 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 19:49:42,711 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:49:42" (1/1) ... [2022-12-13 19:49:42,716 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 19:49:42,725 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db15a001-347d-4b14-830e-13d9cfc598a5/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 19:49:42,736 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db15a001-347d-4b14-830e-13d9cfc598a5/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 19:49:42,738 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db15a001-347d-4b14-830e-13d9cfc598a5/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 19:49:42,770 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-13 19:49:42,770 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-12-13 19:49:42,770 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 19:49:42,770 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-13 19:49:42,770 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-13 19:49:42,770 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2022-12-13 19:49:42,770 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2022-12-13 19:49:42,771 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2022-12-13 19:49:42,771 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2022-12-13 19:49:42,771 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2022-12-13 19:49:42,771 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2022-12-13 19:49:42,771 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2022-12-13 19:49:42,771 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2022-12-13 19:49:42,771 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-13 19:49:42,771 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-12-13 19:49:42,771 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 19:49:42,772 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 19:49:42,773 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 19:49:42,882 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 19:49:42,883 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 19:49:43,157 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 19:49:43,271 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 19:49:43,271 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-13 19:49:43,274 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 07:49:43 BoogieIcfgContainer [2022-12-13 19:49:43,274 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 19:49:43,277 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 19:49:43,277 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 19:49:43,280 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 19:49:43,281 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 07:49:42" (1/3) ... [2022-12-13 19:49:43,281 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e3b5945 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 07:49:43, skipping insertion in model container [2022-12-13 19:49:43,281 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:49:42" (2/3) ... [2022-12-13 19:49:43,282 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e3b5945 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 07:49:43, skipping insertion in model container [2022-12-13 19:49:43,282 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 07:49:43" (3/3) ... [2022-12-13 19:49:43,283 INFO L112 eAbstractionObserver]: Analyzing ICFG mix055_tso.oepc.i [2022-12-13 19:49:43,292 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-12-13 19:49:43,301 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 19:49:43,301 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2022-12-13 19:49:43,301 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-13 19:49:43,357 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-12-13 19:49:43,395 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 152 places, 141 transitions, 302 flow [2022-12-13 19:49:43,452 INFO L130 PetriNetUnfolder]: 2/137 cut-off events. [2022-12-13 19:49:43,452 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 19:49:43,457 INFO L83 FinitePrefix]: Finished finitePrefix Result has 150 conditions, 137 events. 2/137 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 90 event pairs, 0 based on Foata normal form. 0/127 useless extension candidates. Maximal degree in co-relation 97. Up to 2 conditions per place. [2022-12-13 19:49:43,458 INFO L82 GeneralOperation]: Start removeDead. Operand has 152 places, 141 transitions, 302 flow [2022-12-13 19:49:43,462 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 148 places, 137 transitions, 286 flow [2022-12-13 19:49:43,466 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2022-12-13 19:49:43,477 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 148 places, 137 transitions, 286 flow [2022-12-13 19:49:43,479 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 148 places, 137 transitions, 286 flow [2022-12-13 19:49:43,480 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 148 places, 137 transitions, 286 flow [2022-12-13 19:49:43,511 INFO L130 PetriNetUnfolder]: 2/137 cut-off events. [2022-12-13 19:49:43,511 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 19:49:43,512 INFO L83 FinitePrefix]: Finished finitePrefix Result has 150 conditions, 137 events. 2/137 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 90 event pairs, 0 based on Foata normal form. 0/127 useless extension candidates. Maximal degree in co-relation 97. Up to 2 conditions per place. [2022-12-13 19:49:43,515 INFO L119 LiptonReduction]: Number of co-enabled transitions 4176 [2022-12-13 19:49:46,328 INFO L134 LiptonReduction]: Checked pairs total: 15586 [2022-12-13 19:49:46,328 INFO L136 LiptonReduction]: Total number of compositions: 110 [2022-12-13 19:49:46,339 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 19:49:46,343 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;@2514b1e3, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 19:49:46,343 INFO L358 AbstractCegarLoop]: Starting to check reachability of 20 error locations. [2022-12-13 19:49:46,346 INFO L130 PetriNetUnfolder]: 0/9 cut-off events. [2022-12-13 19:49:46,346 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 19:49:46,346 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 19:49:46,346 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2022-12-13 19:49:46,347 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2022-12-13 19:49:46,350 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 19:49:46,350 INFO L85 PathProgramCache]: Analyzing trace with hash 492241408, now seen corresponding path program 1 times [2022-12-13 19:49:46,356 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 19:49:46,356 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1591319744] [2022-12-13 19:49:46,357 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 19:49:46,357 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 19:49:46,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:49:46,536 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 19:49:46,537 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 19:49:46,537 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1591319744] [2022-12-13 19:49:46,537 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1591319744] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 19:49:46,538 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 19:49:46,538 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-13 19:49:46,539 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1960576859] [2022-12-13 19:49:46,540 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 19:49:46,548 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 19:49:46,548 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 19:49:46,567 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 19:49:46,568 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 19:49:46,579 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 114 out of 251 [2022-12-13 19:49:46,581 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 50 places, 38 transitions, 88 flow. Second operand has 3 states, 3 states have (on average 115.66666666666667) internal successors, (347), 3 states have internal predecessors, (347), 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 19:49:46,581 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 19:49:46,582 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 114 of 251 [2022-12-13 19:49:46,582 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 19:49:48,042 INFO L130 PetriNetUnfolder]: 11371/15888 cut-off events. [2022-12-13 19:49:48,043 INFO L131 PetriNetUnfolder]: For 111/111 co-relation queries the response was YES. [2022-12-13 19:49:48,077 INFO L83 FinitePrefix]: Finished finitePrefix Result has 32024 conditions, 15888 events. 11371/15888 cut-off events. For 111/111 co-relation queries the response was YES. Maximal size of possible extension queue 754. Compared 90661 event pairs, 4926 based on Foata normal form. 752/11413 useless extension candidates. Maximal degree in co-relation 32012. Up to 15116 conditions per place. [2022-12-13 19:49:48,140 INFO L137 encePairwiseOnDemand]: 236/251 looper letters, 47 selfloop transitions, 5 changer transitions 0/56 dead transitions. [2022-12-13 19:49:48,140 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 52 places, 56 transitions, 237 flow [2022-12-13 19:49:48,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 19:49:48,143 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 19:49:48,151 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 405 transitions. [2022-12-13 19:49:48,154 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5378486055776892 [2022-12-13 19:49:48,154 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 405 transitions. [2022-12-13 19:49:48,155 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 405 transitions. [2022-12-13 19:49:48,156 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 19:49:48,159 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 405 transitions. [2022-12-13 19:49:48,161 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 135.0) internal successors, (405), 3 states have internal predecessors, (405), 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 19:49:48,167 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 251.0) internal successors, (1004), 4 states have internal predecessors, (1004), 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 19:49:48,167 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 251.0) internal successors, (1004), 4 states have internal predecessors, (1004), 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 19:49:48,169 INFO L175 Difference]: Start difference. First operand has 50 places, 38 transitions, 88 flow. Second operand 3 states and 405 transitions. [2022-12-13 19:49:48,170 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 52 places, 56 transitions, 237 flow [2022-12-13 19:49:48,176 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 48 places, 56 transitions, 230 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-12-13 19:49:48,178 INFO L231 Difference]: Finished difference. Result has 49 places, 41 transitions, 131 flow [2022-12-13 19:49:48,180 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=251, PETRI_DIFFERENCE_MINUEND_FLOW=82, PETRI_DIFFERENCE_MINUEND_PLACES=46, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=37, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=32, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=131, PETRI_PLACES=49, PETRI_TRANSITIONS=41} [2022-12-13 19:49:48,183 INFO L288 CegarLoopForPetriNet]: 50 programPoint places, -1 predicate places. [2022-12-13 19:49:48,183 INFO L495 AbstractCegarLoop]: Abstraction has has 49 places, 41 transitions, 131 flow [2022-12-13 19:49:48,184 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 115.66666666666667) internal successors, (347), 3 states have internal predecessors, (347), 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 19:49:48,184 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 19:49:48,184 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 19:49:48,184 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-13 19:49:48,184 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2022-12-13 19:49:48,185 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 19:49:48,185 INFO L85 PathProgramCache]: Analyzing trace with hash -976472828, now seen corresponding path program 1 times [2022-12-13 19:49:48,185 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 19:49:48,185 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1994847852] [2022-12-13 19:49:48,185 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 19:49:48,186 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 19:49:48,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:49:48,301 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 19:49:48,301 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 19:49:48,302 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1994847852] [2022-12-13 19:49:48,302 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1994847852] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 19:49:48,302 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 19:49:48,302 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 19:49:48,302 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2096429076] [2022-12-13 19:49:48,302 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 19:49:48,303 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 19:49:48,303 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 19:49:48,304 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 19:49:48,304 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-13 19:49:48,312 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 114 out of 251 [2022-12-13 19:49:48,313 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 49 places, 41 transitions, 131 flow. Second operand has 4 states, 4 states have (on average 116.5) internal successors, (466), 4 states have internal predecessors, (466), 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 19:49:48,313 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 19:49:48,314 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 114 of 251 [2022-12-13 19:49:48,314 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 19:49:49,224 INFO L130 PetriNetUnfolder]: 6491/9132 cut-off events. [2022-12-13 19:49:49,224 INFO L131 PetriNetUnfolder]: For 864/864 co-relation queries the response was YES. [2022-12-13 19:49:49,232 INFO L83 FinitePrefix]: Finished finitePrefix Result has 22428 conditions, 9132 events. 6491/9132 cut-off events. For 864/864 co-relation queries the response was YES. Maximal size of possible extension queue 439. Compared 49350 event pairs, 2230 based on Foata normal form. 0/7562 useless extension candidates. Maximal degree in co-relation 22417. Up to 8359 conditions per place. [2022-12-13 19:49:49,259 INFO L137 encePairwiseOnDemand]: 242/251 looper letters, 43 selfloop transitions, 5 changer transitions 0/52 dead transitions. [2022-12-13 19:49:49,259 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 48 places, 52 transitions, 247 flow [2022-12-13 19:49:49,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 19:49:49,259 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-12-13 19:49:49,261 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 508 transitions. [2022-12-13 19:49:49,262 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5059760956175299 [2022-12-13 19:49:49,262 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 508 transitions. [2022-12-13 19:49:49,262 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 508 transitions. [2022-12-13 19:49:49,263 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 19:49:49,263 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 508 transitions. [2022-12-13 19:49:49,265 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 127.0) internal successors, (508), 4 states have internal predecessors, (508), 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 19:49:49,268 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 251.0) internal successors, (1255), 5 states have internal predecessors, (1255), 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 19:49:49,269 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 251.0) internal successors, (1255), 5 states have internal predecessors, (1255), 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 19:49:49,269 INFO L175 Difference]: Start difference. First operand has 49 places, 41 transitions, 131 flow. Second operand 4 states and 508 transitions. [2022-12-13 19:49:49,269 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 48 places, 52 transitions, 247 flow [2022-12-13 19:49:49,270 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 47 places, 52 transitions, 242 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-12-13 19:49:49,271 INFO L231 Difference]: Finished difference. Result has 47 places, 37 transitions, 120 flow [2022-12-13 19:49:49,271 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=251, PETRI_DIFFERENCE_MINUEND_FLOW=110, PETRI_DIFFERENCE_MINUEND_PLACES=44, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=37, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=32, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=120, PETRI_PLACES=47, PETRI_TRANSITIONS=37} [2022-12-13 19:49:49,272 INFO L288 CegarLoopForPetriNet]: 50 programPoint places, -3 predicate places. [2022-12-13 19:49:49,272 INFO L495 AbstractCegarLoop]: Abstraction has has 47 places, 37 transitions, 120 flow [2022-12-13 19:49:49,272 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 116.5) internal successors, (466), 4 states have internal predecessors, (466), 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 19:49:49,272 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 19:49:49,272 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 19:49:49,272 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-13 19:49:49,273 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2022-12-13 19:49:49,273 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 19:49:49,273 INFO L85 PathProgramCache]: Analyzing trace with hash -976472827, now seen corresponding path program 1 times [2022-12-13 19:49:49,273 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 19:49:49,274 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2080717840] [2022-12-13 19:49:49,274 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 19:49:49,274 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 19:49:49,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:49:49,370 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 19:49:49,370 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 19:49:49,370 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2080717840] [2022-12-13 19:49:49,370 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2080717840] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 19:49:49,370 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 19:49:49,370 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 19:49:49,371 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1975720525] [2022-12-13 19:49:49,371 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 19:49:49,371 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 19:49:49,371 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 19:49:49,372 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 19:49:49,372 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-12-13 19:49:49,378 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 114 out of 251 [2022-12-13 19:49:49,379 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 47 places, 37 transitions, 120 flow. Second operand has 4 states, 4 states have (on average 116.5) internal successors, (466), 4 states have internal predecessors, (466), 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 19:49:49,379 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 19:49:49,379 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 114 of 251 [2022-12-13 19:49:49,379 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 19:49:49,773 INFO L130 PetriNetUnfolder]: 2591/3866 cut-off events. [2022-12-13 19:49:49,774 INFO L131 PetriNetUnfolder]: For 905/905 co-relation queries the response was YES. [2022-12-13 19:49:49,777 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9443 conditions, 3866 events. 2591/3866 cut-off events. For 905/905 co-relation queries the response was YES. Maximal size of possible extension queue 147. Compared 19807 event pairs, 790 based on Foata normal form. 108/3608 useless extension candidates. Maximal degree in co-relation 9431. Up to 2122 conditions per place. [2022-12-13 19:49:49,785 INFO L137 encePairwiseOnDemand]: 241/251 looper letters, 56 selfloop transitions, 9 changer transitions 0/69 dead transitions. [2022-12-13 19:49:49,785 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 50 places, 69 transitions, 332 flow [2022-12-13 19:49:49,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 19:49:49,785 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-12-13 19:49:49,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 526 transitions. [2022-12-13 19:49:49,786 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5239043824701195 [2022-12-13 19:49:49,786 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 526 transitions. [2022-12-13 19:49:49,786 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 526 transitions. [2022-12-13 19:49:49,787 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 19:49:49,787 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 526 transitions. [2022-12-13 19:49:49,787 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 131.5) internal successors, (526), 4 states have internal predecessors, (526), 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 19:49:49,789 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 251.0) internal successors, (1255), 5 states have internal predecessors, (1255), 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 19:49:49,789 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 251.0) internal successors, (1255), 5 states have internal predecessors, (1255), 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 19:49:49,789 INFO L175 Difference]: Start difference. First operand has 47 places, 37 transitions, 120 flow. Second operand 4 states and 526 transitions. [2022-12-13 19:49:49,789 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 50 places, 69 transitions, 332 flow [2022-12-13 19:49:49,791 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 48 places, 69 transitions, 326 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-12-13 19:49:49,792 INFO L231 Difference]: Finished difference. Result has 49 places, 41 transitions, 174 flow [2022-12-13 19:49:49,792 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=251, PETRI_DIFFERENCE_MINUEND_FLOW=114, PETRI_DIFFERENCE_MINUEND_PLACES=45, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=37, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=28, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=174, PETRI_PLACES=49, PETRI_TRANSITIONS=41} [2022-12-13 19:49:49,792 INFO L288 CegarLoopForPetriNet]: 50 programPoint places, -1 predicate places. [2022-12-13 19:49:49,793 INFO L495 AbstractCegarLoop]: Abstraction has has 49 places, 41 transitions, 174 flow [2022-12-13 19:49:49,793 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 116.5) internal successors, (466), 4 states have internal predecessors, (466), 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 19:49:49,793 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 19:49:49,793 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 19:49:49,793 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-13 19:49:49,794 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2022-12-13 19:49:49,794 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 19:49:49,794 INFO L85 PathProgramCache]: Analyzing trace with hash -1990235383, now seen corresponding path program 1 times [2022-12-13 19:49:49,794 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 19:49:49,795 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [242288960] [2022-12-13 19:49:49,795 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 19:49:49,795 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 19:49:49,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:49:49,901 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 19:49:49,901 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 19:49:49,901 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [242288960] [2022-12-13 19:49:49,901 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [242288960] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 19:49:49,902 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 19:49:49,902 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 19:49:49,902 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [568211483] [2022-12-13 19:49:49,902 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 19:49:49,902 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-13 19:49:49,902 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 19:49:49,903 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 19:49:49,903 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-12-13 19:49:49,909 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 114 out of 251 [2022-12-13 19:49:49,909 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 49 places, 41 transitions, 174 flow. Second operand has 5 states, 5 states have (on average 117.0) internal successors, (585), 5 states have internal predecessors, (585), 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 19:49:49,909 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 19:49:49,909 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 114 of 251 [2022-12-13 19:49:49,909 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 19:49:50,325 INFO L130 PetriNetUnfolder]: 1691/2492 cut-off events. [2022-12-13 19:49:50,325 INFO L131 PetriNetUnfolder]: For 1608/1608 co-relation queries the response was YES. [2022-12-13 19:49:50,328 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7023 conditions, 2492 events. 1691/2492 cut-off events. For 1608/1608 co-relation queries the response was YES. Maximal size of possible extension queue 131. Compared 11851 event pairs, 508 based on Foata normal form. 54/2474 useless extension candidates. Maximal degree in co-relation 7010. Up to 972 conditions per place. [2022-12-13 19:49:50,335 INFO L137 encePairwiseOnDemand]: 241/251 looper letters, 63 selfloop transitions, 13 changer transitions 4/84 dead transitions. [2022-12-13 19:49:50,335 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 53 places, 84 transitions, 448 flow [2022-12-13 19:49:50,336 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 19:49:50,336 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-12-13 19:49:50,337 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 655 transitions. [2022-12-13 19:49:50,337 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5219123505976095 [2022-12-13 19:49:50,338 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 655 transitions. [2022-12-13 19:49:50,338 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 655 transitions. [2022-12-13 19:49:50,338 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 19:49:50,338 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 655 transitions. [2022-12-13 19:49:50,339 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 131.0) internal successors, (655), 5 states have internal predecessors, (655), 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 19:49:50,341 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 251.0) internal successors, (1506), 6 states have internal predecessors, (1506), 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 19:49:50,342 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 251.0) internal successors, (1506), 6 states have internal predecessors, (1506), 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 19:49:50,342 INFO L175 Difference]: Start difference. First operand has 49 places, 41 transitions, 174 flow. Second operand 5 states and 655 transitions. [2022-12-13 19:49:50,342 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 53 places, 84 transitions, 448 flow [2022-12-13 19:49:50,346 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 51 places, 84 transitions, 430 flow, removed 4 selfloop flow, removed 2 redundant places. [2022-12-13 19:49:50,347 INFO L231 Difference]: Finished difference. Result has 52 places, 41 transitions, 200 flow [2022-12-13 19:49:50,348 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=251, PETRI_DIFFERENCE_MINUEND_FLOW=156, PETRI_DIFFERENCE_MINUEND_PLACES=47, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=41, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=28, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=200, PETRI_PLACES=52, PETRI_TRANSITIONS=41} [2022-12-13 19:49:50,348 INFO L288 CegarLoopForPetriNet]: 50 programPoint places, 2 predicate places. [2022-12-13 19:49:50,349 INFO L495 AbstractCegarLoop]: Abstraction has has 52 places, 41 transitions, 200 flow [2022-12-13 19:49:50,349 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 117.0) internal successors, (585), 5 states have internal predecessors, (585), 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 19:49:50,349 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 19:49:50,349 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 19:49:50,349 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-13 19:49:50,350 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting P3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2022-12-13 19:49:50,350 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 19:49:50,350 INFO L85 PathProgramCache]: Analyzing trace with hash -888656199, now seen corresponding path program 1 times [2022-12-13 19:49:50,351 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 19:49:50,351 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1791037795] [2022-12-13 19:49:50,351 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 19:49:50,351 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 19:49:50,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:49:50,473 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 19:49:50,473 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 19:49:50,474 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1791037795] [2022-12-13 19:49:50,474 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1791037795] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 19:49:50,474 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 19:49:50,474 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-13 19:49:50,474 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1987898802] [2022-12-13 19:49:50,475 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 19:49:50,475 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 19:49:50,475 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 19:49:50,476 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 19:49:50,476 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-12-13 19:49:50,485 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 114 out of 251 [2022-12-13 19:49:50,486 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 52 places, 41 transitions, 200 flow. Second operand has 6 states, 6 states have (on average 117.33333333333333) internal successors, (704), 6 states have internal predecessors, (704), 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 19:49:50,486 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 19:49:50,486 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 114 of 251 [2022-12-13 19:49:50,487 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 19:49:50,778 INFO L130 PetriNetUnfolder]: 1616/2339 cut-off events. [2022-12-13 19:49:50,778 INFO L131 PetriNetUnfolder]: For 1906/1906 co-relation queries the response was YES. [2022-12-13 19:49:50,780 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6772 conditions, 2339 events. 1616/2339 cut-off events. For 1906/1906 co-relation queries the response was YES. Maximal size of possible extension queue 131. Compared 11096 event pairs, 488 based on Foata normal form. 20/2311 useless extension candidates. Maximal degree in co-relation 6758. Up to 972 conditions per place. [2022-12-13 19:49:50,782 INFO L137 encePairwiseOnDemand]: 241/251 looper letters, 0 selfloop transitions, 0 changer transitions 72/72 dead transitions. [2022-12-13 19:49:50,782 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 49 places, 72 transitions, 380 flow [2022-12-13 19:49:50,782 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 19:49:50,782 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-12-13 19:49:50,783 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 757 transitions. [2022-12-13 19:49:50,784 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.50265604249668 [2022-12-13 19:49:50,784 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 757 transitions. [2022-12-13 19:49:50,784 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 757 transitions. [2022-12-13 19:49:50,784 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 19:49:50,784 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 757 transitions. [2022-12-13 19:49:50,785 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 126.16666666666667) internal successors, (757), 6 states have internal predecessors, (757), 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 19:49:50,787 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 251.0) internal successors, (1757), 7 states have internal predecessors, (1757), 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 19:49:50,787 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 251.0) internal successors, (1757), 7 states have internal predecessors, (1757), 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 19:49:50,787 INFO L175 Difference]: Start difference. First operand has 52 places, 41 transitions, 200 flow. Second operand 6 states and 757 transitions. [2022-12-13 19:49:50,787 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 49 places, 72 transitions, 380 flow [2022-12-13 19:49:50,801 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 43 places, 72 transitions, 325 flow, removed 8 selfloop flow, removed 6 redundant places. [2022-12-13 19:49:50,802 INFO L231 Difference]: Finished difference. Result has 43 places, 0 transitions, 0 flow [2022-12-13 19:49:50,802 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=251, PETRI_DIFFERENCE_MINUEND_FLOW=99, PETRI_DIFFERENCE_MINUEND_PLACES=38, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=33, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=33, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=0, PETRI_PLACES=43, PETRI_TRANSITIONS=0} [2022-12-13 19:49:50,802 INFO L288 CegarLoopForPetriNet]: 50 programPoint places, -7 predicate places. [2022-12-13 19:49:50,802 INFO L495 AbstractCegarLoop]: Abstraction has has 43 places, 0 transitions, 0 flow [2022-12-13 19:49:50,803 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 117.33333333333333) internal successors, (704), 6 states have internal predecessors, (704), 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 19:49:50,804 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 20 remaining) [2022-12-13 19:49:50,805 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 20 remaining) [2022-12-13 19:49:50,805 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 20 remaining) [2022-12-13 19:49:50,805 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 20 remaining) [2022-12-13 19:49:50,805 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 20 remaining) [2022-12-13 19:49:50,805 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 20 remaining) [2022-12-13 19:49:50,805 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 20 remaining) [2022-12-13 19:49:50,805 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 20 remaining) [2022-12-13 19:49:50,805 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (11 of 20 remaining) [2022-12-13 19:49:50,805 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (10 of 20 remaining) [2022-12-13 19:49:50,806 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (9 of 20 remaining) [2022-12-13 19:49:50,806 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 20 remaining) [2022-12-13 19:49:50,806 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 20 remaining) [2022-12-13 19:49:50,806 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 20 remaining) [2022-12-13 19:49:50,806 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 20 remaining) [2022-12-13 19:49:50,806 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 20 remaining) [2022-12-13 19:49:50,806 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 20 remaining) [2022-12-13 19:49:50,806 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 20 remaining) [2022-12-13 19:49:50,806 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 20 remaining) [2022-12-13 19:49:50,806 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 20 remaining) [2022-12-13 19:49:50,806 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-13 19:49:50,807 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2022-12-13 19:49:50,810 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-13 19:49:50,810 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-13 19:49:50,813 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.12 07:49:50 BasicIcfg [2022-12-13 19:49:50,813 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-13 19:49:50,813 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-13 19:49:50,813 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-13 19:49:50,813 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-13 19:49:50,814 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 07:49:43" (3/4) ... [2022-12-13 19:49:50,815 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-12-13 19:49:50,819 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2022-12-13 19:49:50,819 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2022-12-13 19:49:50,819 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2022-12-13 19:49:50,819 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P3 [2022-12-13 19:49:50,822 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 33 nodes and edges [2022-12-13 19:49:50,822 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2022-12-13 19:49:50,822 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-12-13 19:49:50,822 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-12-13 19:49:50,848 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db15a001-347d-4b14-830e-13d9cfc598a5/bin/uautomizer-uyxdKDjOR8/witness.graphml [2022-12-13 19:49:50,848 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-13 19:49:50,849 INFO L158 Benchmark]: Toolchain (without parser) took 8590.61ms. Allocated memory was 192.9MB in the beginning and 641.7MB in the end (delta: 448.8MB). Free memory was 165.3MB in the beginning and 434.2MB in the end (delta: -268.9MB). Peak memory consumption was 180.1MB. Max. memory is 16.1GB. [2022-12-13 19:49:50,849 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 109.1MB. Free memory is still 74.9MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 19:49:50,849 INFO L158 Benchmark]: CACSL2BoogieTranslator took 392.13ms. Allocated memory is still 192.9MB. Free memory was 164.5MB in the beginning and 137.2MB in the end (delta: 27.3MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. [2022-12-13 19:49:50,849 INFO L158 Benchmark]: Boogie Procedure Inliner took 35.67ms. Allocated memory is still 192.9MB. Free memory was 137.2MB in the beginning and 134.1MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-12-13 19:49:50,849 INFO L158 Benchmark]: Boogie Preprocessor took 21.94ms. Allocated memory is still 192.9MB. Free memory was 134.1MB in the beginning and 132.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 19:49:50,850 INFO L158 Benchmark]: RCFGBuilder took 563.96ms. Allocated memory is still 192.9MB. Free memory was 132.0MB in the beginning and 92.1MB in the end (delta: 39.8MB). Peak memory consumption was 39.8MB. Max. memory is 16.1GB. [2022-12-13 19:49:50,850 INFO L158 Benchmark]: TraceAbstraction took 7535.92ms. Allocated memory was 192.9MB in the beginning and 641.7MB in the end (delta: 448.8MB). Free memory was 91.1MB in the beginning and 437.3MB in the end (delta: -346.3MB). Peak memory consumption was 378.2MB. Max. memory is 16.1GB. [2022-12-13 19:49:50,850 INFO L158 Benchmark]: Witness Printer took 35.21ms. Allocated memory is still 641.7MB. Free memory was 437.3MB in the beginning and 434.2MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-12-13 19:49:50,851 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 109.1MB. Free memory is still 74.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 392.13ms. Allocated memory is still 192.9MB. Free memory was 164.5MB in the beginning and 137.2MB in the end (delta: 27.3MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 35.67ms. Allocated memory is still 192.9MB. Free memory was 137.2MB in the beginning and 134.1MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 21.94ms. Allocated memory is still 192.9MB. Free memory was 134.1MB in the beginning and 132.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 563.96ms. Allocated memory is still 192.9MB. Free memory was 132.0MB in the beginning and 92.1MB in the end (delta: 39.8MB). Peak memory consumption was 39.8MB. Max. memory is 16.1GB. * TraceAbstraction took 7535.92ms. Allocated memory was 192.9MB in the beginning and 641.7MB in the end (delta: 448.8MB). Free memory was 91.1MB in the beginning and 437.3MB in the end (delta: -346.3MB). Peak memory consumption was 378.2MB. Max. memory is 16.1GB. * Witness Printer took 35.21ms. Allocated memory is still 641.7MB. Free memory was 437.3MB in the beginning and 434.2MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2.8s, 148 PlacesBefore, 50 PlacesAfterwards, 137 TransitionsBefore, 38 TransitionsAfterwards, 4176 CoEnabledTransitionPairs, 7 FixpointIterations, 44 TrivialSequentialCompositions, 55 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 10 ConcurrentYvCompositions, 1 ChoiceCompositions, 110 TotalNumberOfCompositions, 15586 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 4258, independent: 3898, independent conditional: 0, independent unconditional: 3898, dependent: 360, dependent conditional: 0, dependent unconditional: 360, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 2121, independent: 2052, independent conditional: 0, independent unconditional: 2052, dependent: 69, dependent conditional: 0, dependent unconditional: 69, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 4258, independent: 1846, independent conditional: 0, independent unconditional: 1846, dependent: 291, dependent conditional: 0, dependent unconditional: 291, unknown: 2121, unknown conditional: 0, unknown unconditional: 2121] , Statistics on independence cache: Total cache size (in pairs): 222, Positive cache size: 191, Positive conditional cache size: 0, Positive unconditional cache size: 191, Negative cache size: 31, Negative conditional cache size: 0, Negative unconditional cache size: 31, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 761]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 761]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 791]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 791]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 811]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 811]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 831]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 831]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 9 procedures, 184 locations, 20 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 7.4s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 3.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.9s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 303 SdHoareTripleChecker+Valid, 0.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 271 mSDsluCounter, 13 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 86 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 418 IncrementalHoareTripleChecker+Invalid, 504 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 86 mSolverCounterUnsat, 13 mSDtfsCounter, 418 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 12 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=200occurred in iteration=4, InterpolantAutomatonStates: 22, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 72 NumberOfCodeBlocks, 72 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 67 ConstructedInterpolants, 0 QuantifiedInterpolants, 201 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 8 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-12-13 19:49:50,864 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db15a001-347d-4b14-830e-13d9cfc598a5/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE