./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/pthread-wmm/mix031.opt.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_19691447-e566-4e44-8d0b-092d83518727/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19691447-e566-4e44-8d0b-092d83518727/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_19691447-e566-4e44-8d0b-092d83518727/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19691447-e566-4e44-8d0b-092d83518727/bin/uautomizer-uyxdKDjOR8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-wmm/mix031.opt.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19691447-e566-4e44-8d0b-092d83518727/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_19691447-e566-4e44-8d0b-092d83518727/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 526111e98fa506d5405af18114114ae6aa9ce1a2e8442e7719052c05a249c119 --- 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 12:38:55,637 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 12:38:55,638 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 12:38:55,653 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 12:38:55,653 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 12:38:55,654 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 12:38:55,654 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 12:38:55,656 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 12:38:55,657 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 12:38:55,657 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 12:38:55,658 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 12:38:55,659 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 12:38:55,659 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 12:38:55,660 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 12:38:55,661 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 12:38:55,662 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 12:38:55,662 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 12:38:55,663 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 12:38:55,664 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 12:38:55,666 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 12:38:55,667 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 12:38:55,668 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 12:38:55,669 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 12:38:55,670 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 12:38:55,674 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 12:38:55,674 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 12:38:55,674 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 12:38:55,675 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 12:38:55,676 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 12:38:55,677 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 12:38:55,677 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 12:38:55,678 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 12:38:55,678 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 12:38:55,679 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 12:38:55,680 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 12:38:55,681 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 12:38:55,681 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 12:38:55,681 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 12:38:55,682 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 12:38:55,683 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 12:38:55,683 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 12:38:55,684 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19691447-e566-4e44-8d0b-092d83518727/bin/uautomizer-uyxdKDjOR8/config/svcomp-Overflow-32bit-Automizer_Default.epf [2022-12-13 12:38:55,705 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 12:38:55,705 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 12:38:55,706 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 12:38:55,706 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 12:38:55,706 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 12:38:55,707 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 12:38:55,707 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 12:38:55,707 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 12:38:55,707 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 12:38:55,708 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 12:38:55,708 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-13 12:38:55,708 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-13 12:38:55,708 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 12:38:55,708 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-13 12:38:55,709 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 12:38:55,709 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-13 12:38:55,709 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 12:38:55,709 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-13 12:38:55,709 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-12-13 12:38:55,709 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-13 12:38:55,710 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 12:38:55,710 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 12:38:55,710 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-13 12:38:55,710 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 12:38:55,710 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 12:38:55,711 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 12:38:55,711 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 12:38:55,711 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 12:38:55,711 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 12:38:55,711 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-13 12:38:55,711 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 12:38:55,712 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-13 12:38:55,712 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 12:38:55,712 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-13 12:38:55,712 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 12:38:55,712 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 12:38:55,712 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 12:38:55,713 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_19691447-e566-4e44-8d0b-092d83518727/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19691447-e566-4e44-8d0b-092d83518727/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 526111e98fa506d5405af18114114ae6aa9ce1a2e8442e7719052c05a249c119 [2022-12-13 12:38:55,914 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 12:38:55,934 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 12:38:55,937 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 12:38:55,938 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 12:38:55,938 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 12:38:55,939 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19691447-e566-4e44-8d0b-092d83518727/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/pthread-wmm/mix031.opt.i [2022-12-13 12:38:58,519 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 12:38:58,732 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 12:38:58,733 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19691447-e566-4e44-8d0b-092d83518727/sv-benchmarks/c/pthread-wmm/mix031.opt.i [2022-12-13 12:38:58,746 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19691447-e566-4e44-8d0b-092d83518727/bin/uautomizer-uyxdKDjOR8/data/d39669ccc/1e61caddf6904a56a81727521f08d20f/FLAGe87648fb3 [2022-12-13 12:38:59,083 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19691447-e566-4e44-8d0b-092d83518727/bin/uautomizer-uyxdKDjOR8/data/d39669ccc/1e61caddf6904a56a81727521f08d20f [2022-12-13 12:38:59,088 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 12:38:59,091 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 12:38:59,093 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 12:38:59,093 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 12:38:59,099 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 12:38:59,100 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 12:38:59" (1/1) ... [2022-12-13 12:38:59,102 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@95023b3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:38:59, skipping insertion in model container [2022-12-13 12:38:59,102 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 12:38:59" (1/1) ... [2022-12-13 12:38:59,112 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 12:38:59,151 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 12:38:59,279 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_19691447-e566-4e44-8d0b-092d83518727/sv-benchmarks/c/pthread-wmm/mix031.opt.i[987,1000] [2022-12-13 12:38:59,373 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 12:38:59,374 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 12:38:59,374 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 12:38:59,374 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 12:38:59,374 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 12:38:59,374 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 12:38:59,375 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 12:38:59,381 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 12:38:59,382 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 12:38:59,382 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 12:38:59,382 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 12:38:59,384 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 12:38:59,385 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 12:38:59,386 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 12:38:59,386 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 12:38:59,387 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 12:38:59,387 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 12:38:59,387 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 12:38:59,387 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 12:38:59,387 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 12:38:59,387 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 12:38:59,390 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 12:38:59,390 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 12:38:59,391 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 12:38:59,395 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 12:38:59,395 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 12:38:59,395 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 12:38:59,397 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 12:38:59,398 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 12:38:59,398 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 12:38:59,399 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 12:38:59,407 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 12:38:59,415 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_19691447-e566-4e44-8d0b-092d83518727/sv-benchmarks/c/pthread-wmm/mix031.opt.i[987,1000] [2022-12-13 12:38:59,430 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 12:38:59,431 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 12:38:59,431 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 12:38:59,431 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 12:38:59,431 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 12:38:59,432 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 12:38:59,432 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 12:38:59,437 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 12:38:59,437 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 12:38:59,437 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 12:38:59,437 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 12:38:59,438 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 12:38:59,438 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 12:38:59,439 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 12:38:59,439 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 12:38:59,439 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 12:38:59,440 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 12:38:59,440 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 12:38:59,440 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 12:38:59,440 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 12:38:59,440 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 12:38:59,443 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 12:38:59,443 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 12:38:59,443 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 12:38:59,445 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 12:38:59,446 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 12:38:59,446 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 12:38:59,447 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 12:38:59,448 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 12:38:59,448 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 12:38:59,449 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 12:38:59,470 INFO L208 MainTranslator]: Completed translation [2022-12-13 12:38:59,470 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:38:59 WrapperNode [2022-12-13 12:38:59,470 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 12:38:59,471 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 12:38:59,471 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 12:38:59,471 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 12:38:59,477 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:38:59" (1/1) ... [2022-12-13 12:38:59,486 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:38:59" (1/1) ... [2022-12-13 12:38:59,502 INFO L138 Inliner]: procedures = 175, calls = 49, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 125 [2022-12-13 12:38:59,503 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 12:38:59,503 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 12:38:59,503 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 12:38:59,504 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 12:38:59,510 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:38:59" (1/1) ... [2022-12-13 12:38:59,511 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:38:59" (1/1) ... [2022-12-13 12:38:59,513 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:38:59" (1/1) ... [2022-12-13 12:38:59,513 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:38:59" (1/1) ... [2022-12-13 12:38:59,517 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:38:59" (1/1) ... [2022-12-13 12:38:59,519 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:38:59" (1/1) ... [2022-12-13 12:38:59,520 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:38:59" (1/1) ... [2022-12-13 12:38:59,521 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:38:59" (1/1) ... [2022-12-13 12:38:59,523 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 12:38:59,524 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 12:38:59,524 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 12:38:59,524 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 12:38:59,525 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:38:59" (1/1) ... [2022-12-13 12:38:59,530 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 12:38:59,539 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19691447-e566-4e44-8d0b-092d83518727/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 12:38:59,550 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19691447-e566-4e44-8d0b-092d83518727/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 12:38:59,552 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19691447-e566-4e44-8d0b-092d83518727/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 12:38:59,585 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-13 12:38:59,585 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-12-13 12:38:59,585 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 12:38:59,585 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-13 12:38:59,585 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-13 12:38:59,585 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2022-12-13 12:38:59,586 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2022-12-13 12:38:59,586 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2022-12-13 12:38:59,586 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2022-12-13 12:38:59,586 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-13 12:38:59,586 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-12-13 12:38:59,586 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 12:38:59,586 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 12:38:59,588 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 12:38:59,694 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 12:38:59,696 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 12:38:59,932 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 12:39:00,042 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 12:39:00,042 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-13 12:39:00,045 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 12:39:00 BoogieIcfgContainer [2022-12-13 12:39:00,045 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 12:39:00,047 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 12:39:00,048 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 12:39:00,051 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 12:39:00,051 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 12:38:59" (1/3) ... [2022-12-13 12:39:00,052 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@534657e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 12:39:00, skipping insertion in model container [2022-12-13 12:39:00,052 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:38:59" (2/3) ... [2022-12-13 12:39:00,052 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@534657e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 12:39:00, skipping insertion in model container [2022-12-13 12:39:00,052 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 12:39:00" (3/3) ... [2022-12-13 12:39:00,053 INFO L112 eAbstractionObserver]: Analyzing ICFG mix031.opt.i [2022-12-13 12:39:00,062 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-12-13 12:39:00,072 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 12:39:00,073 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2022-12-13 12:39:00,073 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-13 12:39:00,121 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-12-13 12:39:00,155 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 109 places, 104 transitions, 218 flow [2022-12-13 12:39:00,195 INFO L130 PetriNetUnfolder]: 2/102 cut-off events. [2022-12-13 12:39:00,195 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 12:39:00,200 INFO L83 FinitePrefix]: Finished finitePrefix Result has 109 conditions, 102 events. 2/102 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 57 event pairs, 0 based on Foata normal form. 0/96 useless extension candidates. Maximal degree in co-relation 60. Up to 2 conditions per place. [2022-12-13 12:39:00,200 INFO L82 GeneralOperation]: Start removeDead. Operand has 109 places, 104 transitions, 218 flow [2022-12-13 12:39:00,204 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 107 places, 102 transitions, 210 flow [2022-12-13 12:39:00,208 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2022-12-13 12:39:00,215 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 107 places, 102 transitions, 210 flow [2022-12-13 12:39:00,217 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 107 places, 102 transitions, 210 flow [2022-12-13 12:39:00,218 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 107 places, 102 transitions, 210 flow [2022-12-13 12:39:00,242 INFO L130 PetriNetUnfolder]: 2/102 cut-off events. [2022-12-13 12:39:00,242 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 12:39:00,242 INFO L83 FinitePrefix]: Finished finitePrefix Result has 109 conditions, 102 events. 2/102 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 57 event pairs, 0 based on Foata normal form. 0/96 useless extension candidates. Maximal degree in co-relation 60. Up to 2 conditions per place. [2022-12-13 12:39:00,244 INFO L119 LiptonReduction]: Number of co-enabled transitions 1620 [2022-12-13 12:39:02,796 INFO L134 LiptonReduction]: Checked pairs total: 4880 [2022-12-13 12:39:02,796 INFO L136 LiptonReduction]: Total number of compositions: 92 [2022-12-13 12:39:02,807 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 12:39:02,811 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;@77b6491, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 12:39:02,811 INFO L358 AbstractCegarLoop]: Starting to check reachability of 10 error locations. [2022-12-13 12:39:02,814 INFO L130 PetriNetUnfolder]: 0/9 cut-off events. [2022-12-13 12:39:02,814 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 12:39:02,814 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 12:39:02,814 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2022-12-13 12:39:02,815 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 12:39:02,818 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:39:02,818 INFO L85 PathProgramCache]: Analyzing trace with hash 518618182, now seen corresponding path program 1 times [2022-12-13 12:39:02,825 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 12:39:02,825 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [777915372] [2022-12-13 12:39:02,825 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:39:02,826 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 12:39:02,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:39:03,011 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 12:39:03,011 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 12:39:03,012 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [777915372] [2022-12-13 12:39:03,012 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [777915372] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 12:39:03,012 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 12:39:03,012 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-13 12:39:03,014 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1713380170] [2022-12-13 12:39:03,014 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 12:39:03,020 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 12:39:03,020 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 12:39:03,034 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 12:39:03,035 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 12:39:03,043 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 88 out of 196 [2022-12-13 12:39:03,045 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 27 places, 21 transitions, 48 flow. Second operand has 3 states, 3 states have (on average 89.66666666666667) internal successors, (269), 3 states have internal predecessors, (269), 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 12:39:03,045 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 12:39:03,045 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 88 of 196 [2022-12-13 12:39:03,046 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 12:39:03,121 INFO L130 PetriNetUnfolder]: 175/314 cut-off events. [2022-12-13 12:39:03,121 INFO L131 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2022-12-13 12:39:03,122 INFO L83 FinitePrefix]: Finished finitePrefix Result has 636 conditions, 314 events. 175/314 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 1188 event pairs, 175 based on Foata normal form. 0/260 useless extension candidates. Maximal degree in co-relation 626. Up to 306 conditions per place. [2022-12-13 12:39:03,124 INFO L137 encePairwiseOnDemand]: 192/196 looper letters, 15 selfloop transitions, 1 changer transitions 0/18 dead transitions. [2022-12-13 12:39:03,124 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 27 places, 18 transitions, 74 flow [2022-12-13 12:39:03,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 12:39:03,127 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 12:39:03,132 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 283 transitions. [2022-12-13 12:39:03,133 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4812925170068027 [2022-12-13 12:39:03,134 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 283 transitions. [2022-12-13 12:39:03,134 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 283 transitions. [2022-12-13 12:39:03,135 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 12:39:03,136 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 283 transitions. [2022-12-13 12:39:03,138 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 94.33333333333333) internal successors, (283), 3 states have internal predecessors, (283), 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 12:39:03,142 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 196.0) internal successors, (784), 4 states have internal predecessors, (784), 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 12:39:03,142 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 196.0) internal successors, (784), 4 states have internal predecessors, (784), 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 12:39:03,143 INFO L175 Difference]: Start difference. First operand has 27 places, 21 transitions, 48 flow. Second operand 3 states and 283 transitions. [2022-12-13 12:39:03,144 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 27 places, 18 transitions, 74 flow [2022-12-13 12:39:03,145 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 25 places, 18 transitions, 72 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-12-13 12:39:03,146 INFO L231 Difference]: Finished difference. Result has 25 places, 18 transitions, 42 flow [2022-12-13 12:39:03,147 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=196, PETRI_DIFFERENCE_MINUEND_FLOW=40, PETRI_DIFFERENCE_MINUEND_PLACES=23, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=18, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=17, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=42, PETRI_PLACES=25, PETRI_TRANSITIONS=18} [2022-12-13 12:39:03,150 INFO L288 CegarLoopForPetriNet]: 27 programPoint places, -2 predicate places. [2022-12-13 12:39:03,150 INFO L495 AbstractCegarLoop]: Abstraction has has 25 places, 18 transitions, 42 flow [2022-12-13 12:39:03,150 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 89.66666666666667) internal successors, (269), 3 states have internal predecessors, (269), 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 12:39:03,150 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 12:39:03,150 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2022-12-13 12:39:03,150 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-13 12:39:03,151 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 12:39:03,151 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:39:03,151 INFO L85 PathProgramCache]: Analyzing trace with hash 518618183, now seen corresponding path program 1 times [2022-12-13 12:39:03,151 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 12:39:03,151 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1450484162] [2022-12-13 12:39:03,151 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:39:03,151 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 12:39:03,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:39:03,211 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 12:39:03,212 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 12:39:03,212 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1450484162] [2022-12-13 12:39:03,212 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1450484162] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 12:39:03,212 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 12:39:03,212 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-13 12:39:03,212 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1611496859] [2022-12-13 12:39:03,212 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 12:39:03,213 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 12:39:03,213 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 12:39:03,213 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 12:39:03,213 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 12:39:03,218 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 88 out of 196 [2022-12-13 12:39:03,218 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 25 places, 18 transitions, 42 flow. Second operand has 3 states, 3 states have (on average 89.66666666666667) internal successors, (269), 3 states have internal predecessors, (269), 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 12:39:03,218 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 12:39:03,219 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 88 of 196 [2022-12-13 12:39:03,219 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 12:39:03,290 INFO L130 PetriNetUnfolder]: 117/222 cut-off events. [2022-12-13 12:39:03,290 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 12:39:03,290 INFO L83 FinitePrefix]: Finished finitePrefix Result has 450 conditions, 222 events. 117/222 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 794 event pairs, 61 based on Foata normal form. 0/210 useless extension candidates. Maximal degree in co-relation 444. Up to 116 conditions per place. [2022-12-13 12:39:03,291 INFO L137 encePairwiseOnDemand]: 191/196 looper letters, 23 selfloop transitions, 3 changer transitions 2/30 dead transitions. [2022-12-13 12:39:03,291 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 27 places, 30 transitions, 124 flow [2022-12-13 12:39:03,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 12:39:03,292 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 12:39:03,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 294 transitions. [2022-12-13 12:39:03,294 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5 [2022-12-13 12:39:03,294 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 294 transitions. [2022-12-13 12:39:03,294 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 294 transitions. [2022-12-13 12:39:03,295 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 12:39:03,295 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 294 transitions. [2022-12-13 12:39:03,296 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 98.0) internal successors, (294), 3 states have internal predecessors, (294), 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 12:39:03,298 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 196.0) internal successors, (784), 4 states have internal predecessors, (784), 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 12:39:03,298 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 196.0) internal successors, (784), 4 states have internal predecessors, (784), 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 12:39:03,298 INFO L175 Difference]: Start difference. First operand has 25 places, 18 transitions, 42 flow. Second operand 3 states and 294 transitions. [2022-12-13 12:39:03,298 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 27 places, 30 transitions, 124 flow [2022-12-13 12:39:03,299 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 26 places, 30 transitions, 123 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-12-13 12:39:03,300 INFO L231 Difference]: Finished difference. Result has 27 places, 18 transitions, 54 flow [2022-12-13 12:39:03,300 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=196, PETRI_DIFFERENCE_MINUEND_FLOW=41, PETRI_DIFFERENCE_MINUEND_PLACES=24, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=18, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=15, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=54, PETRI_PLACES=27, PETRI_TRANSITIONS=18} [2022-12-13 12:39:03,300 INFO L288 CegarLoopForPetriNet]: 27 programPoint places, 0 predicate places. [2022-12-13 12:39:03,301 INFO L495 AbstractCegarLoop]: Abstraction has has 27 places, 18 transitions, 54 flow [2022-12-13 12:39:03,301 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 89.66666666666667) internal successors, (269), 3 states have internal predecessors, (269), 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 12:39:03,301 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 12:39:03,301 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 12:39:03,301 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-13 12:39:03,302 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 12:39:03,302 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:39:03,302 INFO L85 PathProgramCache]: Analyzing trace with hash 394738374, now seen corresponding path program 1 times [2022-12-13 12:39:03,302 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 12:39:03,302 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [192062083] [2022-12-13 12:39:03,303 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:39:03,303 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 12:39:03,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:39:03,403 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 12:39:03,403 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 12:39:03,404 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [192062083] [2022-12-13 12:39:03,404 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [192062083] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 12:39:03,404 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 12:39:03,404 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 12:39:03,404 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1097500814] [2022-12-13 12:39:03,404 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 12:39:03,405 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 12:39:03,405 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 12:39:03,405 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 12:39:03,405 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-12-13 12:39:03,412 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 88 out of 196 [2022-12-13 12:39:03,413 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 27 places, 18 transitions, 54 flow. Second operand has 4 states, 4 states have (on average 90.75) internal successors, (363), 4 states have internal predecessors, (363), 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 12:39:03,413 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 12:39:03,413 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 88 of 196 [2022-12-13 12:39:03,413 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 12:39:03,490 INFO L130 PetriNetUnfolder]: 104/197 cut-off events. [2022-12-13 12:39:03,490 INFO L131 PetriNetUnfolder]: For 22/22 co-relation queries the response was YES. [2022-12-13 12:39:03,491 INFO L83 FinitePrefix]: Finished finitePrefix Result has 462 conditions, 197 events. 104/197 cut-off events. For 22/22 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 718 event pairs, 61 based on Foata normal form. 8/201 useless extension candidates. Maximal degree in co-relation 454. Up to 116 conditions per place. [2022-12-13 12:39:03,492 INFO L137 encePairwiseOnDemand]: 191/196 looper letters, 0 selfloop transitions, 0 changer transitions 26/26 dead transitions. [2022-12-13 12:39:03,492 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 28 places, 26 transitions, 116 flow [2022-12-13 12:39:03,492 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 12:39:03,492 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-12-13 12:39:03,493 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 378 transitions. [2022-12-13 12:39:03,494 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.48214285714285715 [2022-12-13 12:39:03,494 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 378 transitions. [2022-12-13 12:39:03,494 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 378 transitions. [2022-12-13 12:39:03,495 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 12:39:03,495 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 378 transitions. [2022-12-13 12:39:03,496 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 94.5) internal successors, (378), 4 states have internal predecessors, (378), 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 12:39:03,499 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 196.0) internal successors, (980), 5 states have internal predecessors, (980), 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 12:39:03,499 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 196.0) internal successors, (980), 5 states have internal predecessors, (980), 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 12:39:03,499 INFO L175 Difference]: Start difference. First operand has 27 places, 18 transitions, 54 flow. Second operand 4 states and 378 transitions. [2022-12-13 12:39:03,500 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 28 places, 26 transitions, 116 flow [2022-12-13 12:39:03,500 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 26 places, 26 transitions, 110 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-12-13 12:39:03,501 INFO L231 Difference]: Finished difference. Result has 26 places, 0 transitions, 0 flow [2022-12-13 12:39:03,501 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=196, PETRI_DIFFERENCE_MINUEND_FLOW=40, PETRI_DIFFERENCE_MINUEND_PLACES=23, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=16, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=16, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=0, PETRI_PLACES=26, PETRI_TRANSITIONS=0} [2022-12-13 12:39:03,502 INFO L288 CegarLoopForPetriNet]: 27 programPoint places, -1 predicate places. [2022-12-13 12:39:03,502 INFO L495 AbstractCegarLoop]: Abstraction has has 26 places, 0 transitions, 0 flow [2022-12-13 12:39:03,502 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 90.75) internal successors, (363), 4 states have internal predecessors, (363), 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 12:39:03,505 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 10 remaining) [2022-12-13 12:39:03,506 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 10 remaining) [2022-12-13 12:39:03,506 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 10 remaining) [2022-12-13 12:39:03,506 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 10 remaining) [2022-12-13 12:39:03,506 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (5 of 10 remaining) [2022-12-13 12:39:03,506 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 10 remaining) [2022-12-13 12:39:03,507 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 10 remaining) [2022-12-13 12:39:03,507 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 10 remaining) [2022-12-13 12:39:03,507 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 10 remaining) [2022-12-13 12:39:03,507 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 10 remaining) [2022-12-13 12:39:03,507 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-13 12:39:03,508 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2022-12-13 12:39:03,513 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-13 12:39:03,513 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-13 12:39:03,516 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.12 12:39:03 BasicIcfg [2022-12-13 12:39:03,516 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-13 12:39:03,516 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-13 12:39:03,517 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-13 12:39:03,517 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-13 12:39:03,517 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 12:39:00" (3/4) ... [2022-12-13 12:39:03,520 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-12-13 12:39:03,524 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2022-12-13 12:39:03,524 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2022-12-13 12:39:03,527 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 18 nodes and edges [2022-12-13 12:39:03,527 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2022-12-13 12:39:03,528 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-12-13 12:39:03,528 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-12-13 12:39:03,563 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19691447-e566-4e44-8d0b-092d83518727/bin/uautomizer-uyxdKDjOR8/witness.graphml [2022-12-13 12:39:03,564 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-13 12:39:03,564 INFO L158 Benchmark]: Toolchain (without parser) took 4474.09ms. Allocated memory was 134.2MB in the beginning and 161.5MB in the end (delta: 27.3MB). Free memory was 100.6MB in the beginning and 127.5MB in the end (delta: -26.9MB). Peak memory consumption was 93.1MB. Max. memory is 16.1GB. [2022-12-13 12:39:03,565 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 134.2MB. Free memory is still 77.5MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 12:39:03,565 INFO L158 Benchmark]: CACSL2BoogieTranslator took 377.68ms. Allocated memory is still 134.2MB. Free memory was 100.6MB in the beginning and 75.2MB in the end (delta: 25.4MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2022-12-13 12:39:03,565 INFO L158 Benchmark]: Boogie Procedure Inliner took 31.80ms. Allocated memory is still 134.2MB. Free memory was 75.2MB in the beginning and 73.0MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 12:39:03,565 INFO L158 Benchmark]: Boogie Preprocessor took 19.82ms. Allocated memory is still 134.2MB. Free memory was 73.0MB in the beginning and 71.1MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 12:39:03,566 INFO L158 Benchmark]: RCFGBuilder took 521.13ms. Allocated memory was 134.2MB in the beginning and 161.5MB in the end (delta: 27.3MB). Free memory was 71.1MB in the beginning and 118.1MB in the end (delta: -47.0MB). Peak memory consumption was 25.3MB. Max. memory is 16.1GB. [2022-12-13 12:39:03,566 INFO L158 Benchmark]: TraceAbstraction took 3468.46ms. Allocated memory is still 161.5MB. Free memory was 117.3MB in the beginning and 39.6MB in the end (delta: 77.6MB). Peak memory consumption was 78.3MB. Max. memory is 16.1GB. [2022-12-13 12:39:03,566 INFO L158 Benchmark]: Witness Printer took 47.25ms. Allocated memory is still 161.5MB. Free memory was 39.6MB in the beginning and 127.5MB in the end (delta: -87.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 12:39:03,568 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 134.2MB. Free memory is still 77.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 377.68ms. Allocated memory is still 134.2MB. Free memory was 100.6MB in the beginning and 75.2MB in the end (delta: 25.4MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 31.80ms. Allocated memory is still 134.2MB. Free memory was 75.2MB in the beginning and 73.0MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 19.82ms. Allocated memory is still 134.2MB. Free memory was 73.0MB in the beginning and 71.1MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 521.13ms. Allocated memory was 134.2MB in the beginning and 161.5MB in the end (delta: 27.3MB). Free memory was 71.1MB in the beginning and 118.1MB in the end (delta: -47.0MB). Peak memory consumption was 25.3MB. Max. memory is 16.1GB. * TraceAbstraction took 3468.46ms. Allocated memory is still 161.5MB. Free memory was 117.3MB in the beginning and 39.6MB in the end (delta: 77.6MB). Peak memory consumption was 78.3MB. Max. memory is 16.1GB. * Witness Printer took 47.25ms. Allocated memory is still 161.5MB. Free memory was 39.6MB in the beginning and 127.5MB in the end (delta: -87.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2.6s, 107 PlacesBefore, 27 PlacesAfterwards, 102 TransitionsBefore, 21 TransitionsAfterwards, 1620 CoEnabledTransitionPairs, 7 FixpointIterations, 42 TrivialSequentialCompositions, 42 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 7 ConcurrentYvCompositions, 1 ChoiceCompositions, 92 TotalNumberOfCompositions, 4880 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 2313, independent: 2105, independent conditional: 0, independent unconditional: 2105, dependent: 208, dependent conditional: 0, dependent unconditional: 208, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 930, independent: 880, independent conditional: 0, independent unconditional: 880, dependent: 50, dependent conditional: 0, dependent unconditional: 50, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 2313, independent: 1225, independent conditional: 0, independent unconditional: 1225, dependent: 158, dependent conditional: 0, dependent unconditional: 158, unknown: 930, unknown conditional: 0, unknown unconditional: 930] , Statistics on independence cache: Total cache size (in pairs): 87, Positive cache size: 71, Positive conditional cache size: 0, Positive unconditional cache size: 71, Negative cache size: 16, Negative conditional cache size: 0, Negative unconditional cache size: 16, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 774]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 774]: 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, 128 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: 3.4s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.7s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 65 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 50 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=54occurred 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, 25 NumberOfCodeBlocks, 25 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 22 ConstructedInterpolants, 0 QuantifiedInterpolants, 66 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 12:39:03,583 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19691447-e566-4e44-8d0b-092d83518727/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