./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/pthread-wmm/rfi010.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcd793f9-4511-444c-bf92-482e4d3bc179/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcd793f9-4511-444c-bf92-482e4d3bc179/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_bcd793f9-4511-444c-bf92-482e4d3bc179/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcd793f9-4511-444c-bf92-482e4d3bc179/bin/uautomizer-uyxdKDjOR8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-wmm/rfi010.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcd793f9-4511-444c-bf92-482e4d3bc179/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_bcd793f9-4511-444c-bf92-482e4d3bc179/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 582aea72bf150e6792f444cf029a22a25cb033a365b198fc215f246088fb4d39 --- 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 14:50:37,651 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 14:50:37,652 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 14:50:37,668 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 14:50:37,668 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 14:50:37,669 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 14:50:37,670 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 14:50:37,672 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 14:50:37,673 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 14:50:37,674 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 14:50:37,675 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 14:50:37,676 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 14:50:37,676 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 14:50:37,677 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 14:50:37,678 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 14:50:37,679 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 14:50:37,680 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 14:50:37,681 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 14:50:37,683 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 14:50:37,684 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 14:50:37,686 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 14:50:37,687 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 14:50:37,688 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 14:50:37,689 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 14:50:37,692 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 14:50:37,692 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 14:50:37,693 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 14:50:37,693 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 14:50:37,694 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 14:50:37,695 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 14:50:37,695 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 14:50:37,696 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 14:50:37,696 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 14:50:37,697 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 14:50:37,698 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 14:50:37,698 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 14:50:37,699 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 14:50:37,699 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 14:50:37,699 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 14:50:37,700 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 14:50:37,700 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 14:50:37,701 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcd793f9-4511-444c-bf92-482e4d3bc179/bin/uautomizer-uyxdKDjOR8/config/svcomp-Overflow-32bit-Automizer_Default.epf [2022-12-13 14:50:37,720 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 14:50:37,720 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 14:50:37,720 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 14:50:37,721 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 14:50:37,721 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 14:50:37,721 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 14:50:37,722 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 14:50:37,722 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 14:50:37,722 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 14:50:37,722 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 14:50:37,723 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-13 14:50:37,723 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-13 14:50:37,723 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 14:50:37,723 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-13 14:50:37,723 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 14:50:37,723 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-13 14:50:37,724 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 14:50:37,724 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-13 14:50:37,724 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-12-13 14:50:37,724 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-13 14:50:37,724 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 14:50:37,724 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 14:50:37,724 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-13 14:50:37,725 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 14:50:37,725 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 14:50:37,725 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 14:50:37,725 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 14:50:37,725 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 14:50:37,726 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 14:50:37,726 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-13 14:50:37,726 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 14:50:37,726 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-13 14:50:37,726 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 14:50:37,726 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-13 14:50:37,726 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 14:50:37,727 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 14:50:37,727 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 14:50:37,727 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_bcd793f9-4511-444c-bf92-482e4d3bc179/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcd793f9-4511-444c-bf92-482e4d3bc179/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 582aea72bf150e6792f444cf029a22a25cb033a365b198fc215f246088fb4d39 [2022-12-13 14:50:37,928 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 14:50:37,944 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 14:50:37,946 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 14:50:37,947 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 14:50:37,948 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 14:50:37,948 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcd793f9-4511-444c-bf92-482e4d3bc179/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/pthread-wmm/rfi010.i [2022-12-13 14:50:40,578 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 14:50:40,731 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 14:50:40,731 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcd793f9-4511-444c-bf92-482e4d3bc179/sv-benchmarks/c/pthread-wmm/rfi010.i [2022-12-13 14:50:40,739 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcd793f9-4511-444c-bf92-482e4d3bc179/bin/uautomizer-uyxdKDjOR8/data/527e95313/83a6095dd4d04e2aa19588dff501fc1b/FLAG55748b146 [2022-12-13 14:50:40,751 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcd793f9-4511-444c-bf92-482e4d3bc179/bin/uautomizer-uyxdKDjOR8/data/527e95313/83a6095dd4d04e2aa19588dff501fc1b [2022-12-13 14:50:40,754 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 14:50:40,755 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 14:50:40,756 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 14:50:40,756 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 14:50:40,759 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 14:50:40,759 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 02:50:40" (1/1) ... [2022-12-13 14:50:40,760 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2df1059 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:50:40, skipping insertion in model container [2022-12-13 14:50:40,760 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 02:50:40" (1/1) ... [2022-12-13 14:50:40,765 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 14:50:40,798 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 14:50:40,929 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_bcd793f9-4511-444c-bf92-482e4d3bc179/sv-benchmarks/c/pthread-wmm/rfi010.i[983,996] [2022-12-13 14:50:41,040 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 14:50:41,040 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 14:50:41,041 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 14:50:41,041 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 14:50:41,041 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 14:50:41,051 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 14:50:41,051 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 14:50:41,052 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 14:50:41,052 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 14:50:41,054 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 14:50:41,056 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 14:50:41,057 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 14:50:41,058 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 14:50:41,067 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 14:50:41,067 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 14:50:41,067 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 14:50:41,067 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 14:50:41,070 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 14:50:41,071 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 14:50:41,071 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 14:50:41,077 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 14:50:41,077 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 14:50:41,078 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 14:50:41,080 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 14:50:41,081 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 14:50:41,081 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 14:50:41,082 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 14:50:41,092 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 14:50:41,101 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_bcd793f9-4511-444c-bf92-482e4d3bc179/sv-benchmarks/c/pthread-wmm/rfi010.i[983,996] [2022-12-13 14:50:41,124 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 14:50:41,124 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 14:50:41,124 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 14:50:41,124 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 14:50:41,125 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 14:50:41,132 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 14:50:41,132 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 14:50:41,133 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 14:50:41,133 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 14:50:41,133 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 14:50:41,134 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 14:50:41,135 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 14:50:41,135 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 14:50:41,142 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 14:50:41,142 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 14:50:41,143 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 14:50:41,143 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 14:50:41,145 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 14:50:41,145 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 14:50:41,146 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 14:50:41,149 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 14:50:41,149 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 14:50:41,150 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 14:50:41,152 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 14:50:41,152 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 14:50:41,153 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 14:50:41,153 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 14:50:41,176 INFO L208 MainTranslator]: Completed translation [2022-12-13 14:50:41,177 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:50:41 WrapperNode [2022-12-13 14:50:41,177 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 14:50:41,177 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 14:50:41,178 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 14:50:41,178 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 14:50:41,183 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:50:41" (1/1) ... [2022-12-13 14:50:41,197 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:50:41" (1/1) ... [2022-12-13 14:50:41,222 INFO L138 Inliner]: procedures = 175, calls = 45, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 134 [2022-12-13 14:50:41,222 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 14:50:41,223 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 14:50:41,223 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 14:50:41,223 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 14:50:41,231 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:50:41" (1/1) ... [2022-12-13 14:50:41,231 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:50:41" (1/1) ... [2022-12-13 14:50:41,235 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:50:41" (1/1) ... [2022-12-13 14:50:41,235 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:50:41" (1/1) ... [2022-12-13 14:50:41,240 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:50:41" (1/1) ... [2022-12-13 14:50:41,242 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:50:41" (1/1) ... [2022-12-13 14:50:41,243 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:50:41" (1/1) ... [2022-12-13 14:50:41,244 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:50:41" (1/1) ... [2022-12-13 14:50:41,246 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 14:50:41,247 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 14:50:41,247 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 14:50:41,247 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 14:50:41,247 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:50:41" (1/1) ... [2022-12-13 14:50:41,252 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 14:50:41,260 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcd793f9-4511-444c-bf92-482e4d3bc179/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 14:50:41,269 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcd793f9-4511-444c-bf92-482e4d3bc179/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 14:50:41,271 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcd793f9-4511-444c-bf92-482e4d3bc179/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 14:50:41,303 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-13 14:50:41,303 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-12-13 14:50:41,303 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 14:50:41,303 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-13 14:50:41,303 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-13 14:50:41,304 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2022-12-13 14:50:41,304 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2022-12-13 14:50:41,304 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2022-12-13 14:50:41,304 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2022-12-13 14:50:41,304 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-13 14:50:41,304 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-12-13 14:50:41,304 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 14:50:41,304 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 14:50:41,305 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 14:50:41,408 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 14:50:41,409 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 14:50:41,663 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 14:50:41,792 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 14:50:41,792 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-13 14:50:41,795 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 02:50:41 BoogieIcfgContainer [2022-12-13 14:50:41,795 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 14:50:41,798 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 14:50:41,798 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 14:50:41,801 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 14:50:41,801 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 02:50:40" (1/3) ... [2022-12-13 14:50:41,802 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3c6aa5cc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 02:50:41, skipping insertion in model container [2022-12-13 14:50:41,802 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:50:41" (2/3) ... [2022-12-13 14:50:41,803 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3c6aa5cc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 02:50:41, skipping insertion in model container [2022-12-13 14:50:41,803 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 02:50:41" (3/3) ... [2022-12-13 14:50:41,804 INFO L112 eAbstractionObserver]: Analyzing ICFG rfi010.i [2022-12-13 14:50:41,813 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-12-13 14:50:41,824 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 14:50:41,824 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2022-12-13 14:50:41,825 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-13 14:50:41,871 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-12-13 14:50:41,901 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 103 places, 98 transitions, 206 flow [2022-12-13 14:50:41,950 INFO L130 PetriNetUnfolder]: 2/96 cut-off events. [2022-12-13 14:50:41,950 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 14:50:41,953 INFO L83 FinitePrefix]: Finished finitePrefix Result has 103 conditions, 96 events. 2/96 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 51 event pairs, 0 based on Foata normal form. 0/90 useless extension candidates. Maximal degree in co-relation 57. Up to 2 conditions per place. [2022-12-13 14:50:41,953 INFO L82 GeneralOperation]: Start removeDead. Operand has 103 places, 98 transitions, 206 flow [2022-12-13 14:50:41,956 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 101 places, 96 transitions, 198 flow [2022-12-13 14:50:41,958 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2022-12-13 14:50:41,966 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 101 places, 96 transitions, 198 flow [2022-12-13 14:50:41,968 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 101 places, 96 transitions, 198 flow [2022-12-13 14:50:41,969 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 101 places, 96 transitions, 198 flow [2022-12-13 14:50:41,984 INFO L130 PetriNetUnfolder]: 2/96 cut-off events. [2022-12-13 14:50:41,984 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 14:50:41,984 INFO L83 FinitePrefix]: Finished finitePrefix Result has 103 conditions, 96 events. 2/96 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 51 event pairs, 0 based on Foata normal form. 0/90 useless extension candidates. Maximal degree in co-relation 57. Up to 2 conditions per place. [2022-12-13 14:50:41,985 INFO L119 LiptonReduction]: Number of co-enabled transitions 1352 [2022-12-13 14:50:44,229 INFO L134 LiptonReduction]: Checked pairs total: 4060 [2022-12-13 14:50:44,229 INFO L136 LiptonReduction]: Total number of compositions: 87 [2022-12-13 14:50:44,240 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 14:50:44,244 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;@25cffb73, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 14:50:44,245 INFO L358 AbstractCegarLoop]: Starting to check reachability of 10 error locations. [2022-12-13 14:50:44,247 INFO L130 PetriNetUnfolder]: 0/6 cut-off events. [2022-12-13 14:50:44,247 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 14:50:44,247 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 14:50:44,248 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2022-12-13 14:50:44,248 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2022-12-13 14:50:44,251 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:50:44,252 INFO L85 PathProgramCache]: Analyzing trace with hash 441077848, now seen corresponding path program 1 times [2022-12-13 14:50:44,258 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 14:50:44,258 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1500197308] [2022-12-13 14:50:44,258 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:50:44,258 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 14:50:44,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:50:44,475 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 14:50:44,476 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 14:50:44,476 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1500197308] [2022-12-13 14:50:44,476 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1500197308] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 14:50:44,477 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 14:50:44,477 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-13 14:50:44,478 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [250847605] [2022-12-13 14:50:44,478 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 14:50:44,484 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 14:50:44,484 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 14:50:44,498 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 14:50:44,499 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 14:50:44,508 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 81 out of 185 [2022-12-13 14:50:44,510 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 26 places, 20 transitions, 46 flow. Second operand has 3 states, 3 states have (on average 82.66666666666667) internal successors, (248), 3 states have internal predecessors, (248), 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 14:50:44,511 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 14:50:44,511 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 81 of 185 [2022-12-13 14:50:44,512 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 14:50:44,611 INFO L130 PetriNetUnfolder]: 175/316 cut-off events. [2022-12-13 14:50:44,612 INFO L131 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2022-12-13 14:50:44,612 INFO L83 FinitePrefix]: Finished finitePrefix Result has 638 conditions, 316 events. 175/316 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 1148 event pairs, 175 based on Foata normal form. 0/265 useless extension candidates. Maximal degree in co-relation 628. Up to 306 conditions per place. [2022-12-13 14:50:44,615 INFO L137 encePairwiseOnDemand]: 181/185 looper letters, 15 selfloop transitions, 1 changer transitions 0/17 dead transitions. [2022-12-13 14:50:44,615 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 26 places, 17 transitions, 72 flow [2022-12-13 14:50:44,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 14:50:44,618 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 14:50:44,623 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 262 transitions. [2022-12-13 14:50:44,625 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4720720720720721 [2022-12-13 14:50:44,626 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 262 transitions. [2022-12-13 14:50:44,626 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 262 transitions. [2022-12-13 14:50:44,627 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 14:50:44,628 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 262 transitions. [2022-12-13 14:50:44,630 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 87.33333333333333) internal successors, (262), 3 states have internal predecessors, (262), 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 14:50:44,634 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 185.0) internal successors, (740), 4 states have internal predecessors, (740), 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 14:50:44,634 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 185.0) internal successors, (740), 4 states have internal predecessors, (740), 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 14:50:44,635 INFO L175 Difference]: Start difference. First operand has 26 places, 20 transitions, 46 flow. Second operand 3 states and 262 transitions. [2022-12-13 14:50:44,636 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 26 places, 17 transitions, 72 flow [2022-12-13 14:50:44,637 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 24 places, 17 transitions, 70 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-12-13 14:50:44,638 INFO L231 Difference]: Finished difference. Result has 24 places, 17 transitions, 40 flow [2022-12-13 14:50:44,639 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=185, PETRI_DIFFERENCE_MINUEND_FLOW=38, PETRI_DIFFERENCE_MINUEND_PLACES=22, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=17, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=16, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=40, PETRI_PLACES=24, PETRI_TRANSITIONS=17} [2022-12-13 14:50:44,642 INFO L288 CegarLoopForPetriNet]: 26 programPoint places, -2 predicate places. [2022-12-13 14:50:44,642 INFO L495 AbstractCegarLoop]: Abstraction has has 24 places, 17 transitions, 40 flow [2022-12-13 14:50:44,642 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 82.66666666666667) internal successors, (248), 3 states have internal predecessors, (248), 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 14:50:44,642 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 14:50:44,642 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2022-12-13 14:50:44,642 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-13 14:50:44,643 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2022-12-13 14:50:44,643 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:50:44,643 INFO L85 PathProgramCache]: Analyzing trace with hash 441077849, now seen corresponding path program 1 times [2022-12-13 14:50:44,643 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 14:50:44,643 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1762852625] [2022-12-13 14:50:44,643 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:50:44,643 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 14:50:44,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:50:44,705 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 14:50:44,705 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 14:50:44,706 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1762852625] [2022-12-13 14:50:44,706 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1762852625] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 14:50:44,706 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 14:50:44,706 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-13 14:50:44,706 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1248381460] [2022-12-13 14:50:44,706 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 14:50:44,707 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 14:50:44,707 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 14:50:44,708 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 14:50:44,708 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 14:50:44,714 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 81 out of 185 [2022-12-13 14:50:44,715 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 24 places, 17 transitions, 40 flow. Second operand has 3 states, 3 states have (on average 82.66666666666667) internal successors, (248), 3 states have internal predecessors, (248), 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 14:50:44,715 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 14:50:44,715 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 81 of 185 [2022-12-13 14:50:44,715 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 14:50:44,806 INFO L130 PetriNetUnfolder]: 117/220 cut-off events. [2022-12-13 14:50:44,806 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 14:50:44,807 INFO L83 FinitePrefix]: Finished finitePrefix Result has 448 conditions, 220 events. 117/220 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 735 event pairs, 61 based on Foata normal form. 0/209 useless extension candidates. Maximal degree in co-relation 442. Up to 116 conditions per place. [2022-12-13 14:50:44,807 INFO L137 encePairwiseOnDemand]: 180/185 looper letters, 23 selfloop transitions, 3 changer transitions 2/29 dead transitions. [2022-12-13 14:50:44,807 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 26 places, 29 transitions, 122 flow [2022-12-13 14:50:44,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 14:50:44,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 14:50:44,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 273 transitions. [2022-12-13 14:50:44,809 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4918918918918919 [2022-12-13 14:50:44,809 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 273 transitions. [2022-12-13 14:50:44,809 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 273 transitions. [2022-12-13 14:50:44,809 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 14:50:44,809 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 273 transitions. [2022-12-13 14:50:44,810 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 91.0) internal successors, (273), 3 states have internal predecessors, (273), 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 14:50:44,811 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 185.0) internal successors, (740), 4 states have internal predecessors, (740), 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 14:50:44,811 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 185.0) internal successors, (740), 4 states have internal predecessors, (740), 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 14:50:44,811 INFO L175 Difference]: Start difference. First operand has 24 places, 17 transitions, 40 flow. Second operand 3 states and 273 transitions. [2022-12-13 14:50:44,811 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 26 places, 29 transitions, 122 flow [2022-12-13 14:50:44,812 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 25 places, 29 transitions, 121 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-12-13 14:50:44,812 INFO L231 Difference]: Finished difference. Result has 26 places, 17 transitions, 52 flow [2022-12-13 14:50:44,812 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=185, PETRI_DIFFERENCE_MINUEND_FLOW=39, PETRI_DIFFERENCE_MINUEND_PLACES=23, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=17, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=14, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=52, PETRI_PLACES=26, PETRI_TRANSITIONS=17} [2022-12-13 14:50:44,813 INFO L288 CegarLoopForPetriNet]: 26 programPoint places, 0 predicate places. [2022-12-13 14:50:44,813 INFO L495 AbstractCegarLoop]: Abstraction has has 26 places, 17 transitions, 52 flow [2022-12-13 14:50:44,813 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 82.66666666666667) internal successors, (248), 3 states have internal predecessors, (248), 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 14:50:44,813 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 14:50:44,813 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 14:50:44,813 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-13 14:50:44,813 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2022-12-13 14:50:44,814 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:50:44,814 INFO L85 PathProgramCache]: Analyzing trace with hash 1337070948, now seen corresponding path program 1 times [2022-12-13 14:50:44,814 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 14:50:44,814 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [851277378] [2022-12-13 14:50:44,814 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:50:44,814 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 14:50:44,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:50:44,890 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 14:50:44,890 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 14:50:44,890 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [851277378] [2022-12-13 14:50:44,890 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [851277378] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 14:50:44,891 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 14:50:44,891 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 14:50:44,891 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1313386836] [2022-12-13 14:50:44,891 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 14:50:44,891 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 14:50:44,891 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 14:50:44,892 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 14:50:44,892 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-12-13 14:50:44,898 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 81 out of 185 [2022-12-13 14:50:44,899 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 26 places, 17 transitions, 52 flow. Second operand has 4 states, 4 states have (on average 83.75) internal successors, (335), 4 states have internal predecessors, (335), 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 14:50:44,899 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 14:50:44,899 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 81 of 185 [2022-12-13 14:50:44,899 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 14:50:44,971 INFO L130 PetriNetUnfolder]: 104/195 cut-off events. [2022-12-13 14:50:44,972 INFO L131 PetriNetUnfolder]: For 21/21 co-relation queries the response was YES. [2022-12-13 14:50:44,972 INFO L83 FinitePrefix]: Finished finitePrefix Result has 460 conditions, 195 events. 104/195 cut-off events. For 21/21 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 657 event pairs, 61 based on Foata normal form. 8/200 useless extension candidates. Maximal degree in co-relation 452. Up to 116 conditions per place. [2022-12-13 14:50:44,972 INFO L137 encePairwiseOnDemand]: 180/185 looper letters, 0 selfloop transitions, 0 changer transitions 25/25 dead transitions. [2022-12-13 14:50:44,973 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 27 places, 25 transitions, 114 flow [2022-12-13 14:50:44,973 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 14:50:44,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-12-13 14:50:44,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 350 transitions. [2022-12-13 14:50:44,974 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.47297297297297297 [2022-12-13 14:50:44,974 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 350 transitions. [2022-12-13 14:50:44,974 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 350 transitions. [2022-12-13 14:50:44,974 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 14:50:44,974 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 350 transitions. [2022-12-13 14:50:44,975 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 87.5) internal successors, (350), 4 states have internal predecessors, (350), 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 14:50:44,976 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 185.0) internal successors, (925), 5 states have internal predecessors, (925), 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 14:50:44,977 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 185.0) internal successors, (925), 5 states have internal predecessors, (925), 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 14:50:44,977 INFO L175 Difference]: Start difference. First operand has 26 places, 17 transitions, 52 flow. Second operand 4 states and 350 transitions. [2022-12-13 14:50:44,977 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 27 places, 25 transitions, 114 flow [2022-12-13 14:50:44,977 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 25 places, 25 transitions, 108 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-12-13 14:50:44,977 INFO L231 Difference]: Finished difference. Result has 25 places, 0 transitions, 0 flow [2022-12-13 14:50:44,977 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=185, PETRI_DIFFERENCE_MINUEND_FLOW=38, PETRI_DIFFERENCE_MINUEND_PLACES=22, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=15, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=15, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=0, PETRI_PLACES=25, PETRI_TRANSITIONS=0} [2022-12-13 14:50:44,978 INFO L288 CegarLoopForPetriNet]: 26 programPoint places, -1 predicate places. [2022-12-13 14:50:44,978 INFO L495 AbstractCegarLoop]: Abstraction has has 25 places, 0 transitions, 0 flow [2022-12-13 14:50:44,978 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 83.75) internal successors, (335), 4 states have internal predecessors, (335), 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 14:50:44,980 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 10 remaining) [2022-12-13 14:50:44,980 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 10 remaining) [2022-12-13 14:50:44,981 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 10 remaining) [2022-12-13 14:50:44,981 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 10 remaining) [2022-12-13 14:50:44,981 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (5 of 10 remaining) [2022-12-13 14:50:44,981 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 10 remaining) [2022-12-13 14:50:44,981 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 10 remaining) [2022-12-13 14:50:44,981 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 10 remaining) [2022-12-13 14:50:44,981 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 10 remaining) [2022-12-13 14:50:44,981 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 10 remaining) [2022-12-13 14:50:44,981 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-13 14:50:44,982 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2022-12-13 14:50:44,985 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-13 14:50:44,986 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-13 14:50:44,988 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.12 02:50:44 BasicIcfg [2022-12-13 14:50:44,988 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-13 14:50:44,988 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-13 14:50:44,989 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-13 14:50:44,989 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-13 14:50:44,989 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 02:50:41" (3/4) ... [2022-12-13 14:50:44,991 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-12-13 14:50:44,995 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2022-12-13 14:50:44,995 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2022-12-13 14:50:44,998 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 18 nodes and edges [2022-12-13 14:50:44,998 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2022-12-13 14:50:44,998 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-12-13 14:50:44,998 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-12-13 14:50:45,022 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcd793f9-4511-444c-bf92-482e4d3bc179/bin/uautomizer-uyxdKDjOR8/witness.graphml [2022-12-13 14:50:45,023 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-13 14:50:45,023 INFO L158 Benchmark]: Toolchain (without parser) took 4268.01ms. Allocated memory was 178.3MB in the beginning and 213.9MB in the end (delta: 35.7MB). Free memory was 145.0MB in the beginning and 130.5MB in the end (delta: 14.5MB). Peak memory consumption was 51.9MB. Max. memory is 16.1GB. [2022-12-13 14:50:45,024 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 178.3MB. Free memory is still 152.8MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 14:50:45,024 INFO L158 Benchmark]: CACSL2BoogieTranslator took 420.92ms. Allocated memory is still 178.3MB. Free memory was 144.4MB in the beginning and 118.6MB in the end (delta: 25.8MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2022-12-13 14:50:45,024 INFO L158 Benchmark]: Boogie Procedure Inliner took 45.16ms. Allocated memory is still 178.3MB. Free memory was 118.6MB in the beginning and 116.3MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 14:50:45,025 INFO L158 Benchmark]: Boogie Preprocessor took 22.97ms. Allocated memory is still 178.3MB. Free memory was 116.3MB in the beginning and 114.3MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 14:50:45,025 INFO L158 Benchmark]: RCFGBuilder took 548.44ms. Allocated memory is still 178.3MB. Free memory was 114.3MB in the beginning and 78.6MB in the end (delta: 35.8MB). Peak memory consumption was 35.7MB. Max. memory is 16.1GB. [2022-12-13 14:50:45,026 INFO L158 Benchmark]: TraceAbstraction took 3190.39ms. Allocated memory was 178.3MB in the beginning and 213.9MB in the end (delta: 35.7MB). Free memory was 77.9MB in the beginning and 133.6MB in the end (delta: -55.7MB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 14:50:45,026 INFO L158 Benchmark]: Witness Printer took 34.17ms. Allocated memory is still 213.9MB. Free memory was 133.6MB in the beginning and 130.5MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-12-13 14:50:45,028 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 178.3MB. Free memory is still 152.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 420.92ms. Allocated memory is still 178.3MB. Free memory was 144.4MB in the beginning and 118.6MB in the end (delta: 25.8MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 45.16ms. Allocated memory is still 178.3MB. Free memory was 118.6MB in the beginning and 116.3MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 22.97ms. Allocated memory is still 178.3MB. Free memory was 116.3MB in the beginning and 114.3MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 548.44ms. Allocated memory is still 178.3MB. Free memory was 114.3MB in the beginning and 78.6MB in the end (delta: 35.8MB). Peak memory consumption was 35.7MB. Max. memory is 16.1GB. * TraceAbstraction took 3190.39ms. Allocated memory was 178.3MB in the beginning and 213.9MB in the end (delta: 35.7MB). Free memory was 77.9MB in the beginning and 133.6MB in the end (delta: -55.7MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 34.17ms. Allocated memory is still 213.9MB. Free memory was 133.6MB in the beginning and 130.5MB 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: 2.3s, 101 PlacesBefore, 26 PlacesAfterwards, 96 TransitionsBefore, 20 TransitionsAfterwards, 1352 CoEnabledTransitionPairs, 6 FixpointIterations, 39 TrivialSequentialCompositions, 39 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 8 ConcurrentYvCompositions, 1 ChoiceCompositions, 87 TotalNumberOfCompositions, 4060 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1714, independent: 1544, independent conditional: 0, independent unconditional: 1544, dependent: 170, dependent conditional: 0, dependent unconditional: 170, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 769, independent: 725, independent conditional: 0, independent unconditional: 725, dependent: 44, dependent conditional: 0, dependent unconditional: 44, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 1714, independent: 819, independent conditional: 0, independent unconditional: 819, dependent: 126, dependent conditional: 0, dependent unconditional: 126, unknown: 769, unknown conditional: 0, unknown unconditional: 769] , Statistics on independence cache: Total cache size (in pairs): 77, Positive cache size: 63, Positive conditional cache size: 0, Positive unconditional cache size: 63, Negative cache size: 14, Negative conditional cache size: 0, Negative unconditional cache size: 14, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 764]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 764]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 808]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 808]: 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 5 procedures, 119 locations, 10 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: 3.1s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.3s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 67 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 47 mSDsluCounter, 9 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 16 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 84 IncrementalHoareTripleChecker+Invalid, 100 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 16 mSolverCounterUnsat, 9 mSDtfsCounter, 84 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 4 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=52occurred in iteration=2, InterpolantAutomatonStates: 10, 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, 0.2s InterpolantComputationTime, 22 NumberOfCodeBlocks, 22 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 19 ConstructedInterpolants, 0 QuantifiedInterpolants, 57 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 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 4 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-12-13 14:50:45,043 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcd793f9-4511-444c-bf92-482e4d3bc179/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