./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/pthread-wmm/mix025_pso.opt_rmo.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_60c67a3d-d842-473d-8a6b-0afef34e69c4/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60c67a3d-d842-473d-8a6b-0afef34e69c4/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_60c67a3d-d842-473d-8a6b-0afef34e69c4/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60c67a3d-d842-473d-8a6b-0afef34e69c4/bin/uautomizer-uyxdKDjOR8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-wmm/mix025_pso.opt_rmo.opt.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60c67a3d-d842-473d-8a6b-0afef34e69c4/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_60c67a3d-d842-473d-8a6b-0afef34e69c4/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 3bbcbfea07b4de27a61735028fd08097276598be4815bd7ea5f14ba44ebf2380 --- 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 18:12:24,148 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 18:12:24,150 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 18:12:24,163 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 18:12:24,163 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 18:12:24,164 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 18:12:24,165 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 18:12:24,166 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 18:12:24,167 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 18:12:24,167 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 18:12:24,168 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 18:12:24,169 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 18:12:24,170 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 18:12:24,172 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 18:12:24,173 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 18:12:24,175 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 18:12:24,177 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 18:12:24,178 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 18:12:24,181 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 18:12:24,184 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 18:12:24,186 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 18:12:24,188 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 18:12:24,189 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 18:12:24,191 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 18:12:24,197 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 18:12:24,197 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 18:12:24,198 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 18:12:24,199 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 18:12:24,200 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 18:12:24,201 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 18:12:24,201 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 18:12:24,202 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 18:12:24,203 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 18:12:24,204 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 18:12:24,205 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 18:12:24,205 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 18:12:24,206 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 18:12:24,206 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 18:12:24,206 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 18:12:24,207 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 18:12:24,208 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 18:12:24,209 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60c67a3d-d842-473d-8a6b-0afef34e69c4/bin/uautomizer-uyxdKDjOR8/config/svcomp-Overflow-32bit-Automizer_Default.epf [2022-12-13 18:12:24,223 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 18:12:24,223 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 18:12:24,223 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 18:12:24,223 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 18:12:24,224 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 18:12:24,224 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 18:12:24,224 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 18:12:24,225 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 18:12:24,225 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 18:12:24,225 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 18:12:24,225 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-13 18:12:24,225 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-13 18:12:24,225 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 18:12:24,225 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-13 18:12:24,225 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 18:12:24,226 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-13 18:12:24,226 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 18:12:24,226 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-13 18:12:24,226 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-12-13 18:12:24,226 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-13 18:12:24,226 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 18:12:24,226 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 18:12:24,226 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-13 18:12:24,226 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 18:12:24,227 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 18:12:24,227 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 18:12:24,227 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 18:12:24,227 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 18:12:24,227 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 18:12:24,227 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-13 18:12:24,227 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 18:12:24,227 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-13 18:12:24,228 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 18:12:24,228 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-13 18:12:24,228 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 18:12:24,228 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 18:12:24,228 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 18:12:24,228 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_60c67a3d-d842-473d-8a6b-0afef34e69c4/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60c67a3d-d842-473d-8a6b-0afef34e69c4/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3bbcbfea07b4de27a61735028fd08097276598be4815bd7ea5f14ba44ebf2380 [2022-12-13 18:12:24,423 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 18:12:24,440 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 18:12:24,442 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 18:12:24,443 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 18:12:24,443 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 18:12:24,444 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60c67a3d-d842-473d-8a6b-0afef34e69c4/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/pthread-wmm/mix025_pso.opt_rmo.opt.i [2022-12-13 18:12:27,053 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 18:12:27,250 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 18:12:27,250 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60c67a3d-d842-473d-8a6b-0afef34e69c4/sv-benchmarks/c/pthread-wmm/mix025_pso.opt_rmo.opt.i [2022-12-13 18:12:27,263 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60c67a3d-d842-473d-8a6b-0afef34e69c4/bin/uautomizer-uyxdKDjOR8/data/49f1a4dc2/bc6325f0a3554618a183576652e53d79/FLAGd716b9142 [2022-12-13 18:12:27,275 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60c67a3d-d842-473d-8a6b-0afef34e69c4/bin/uautomizer-uyxdKDjOR8/data/49f1a4dc2/bc6325f0a3554618a183576652e53d79 [2022-12-13 18:12:27,277 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 18:12:27,278 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 18:12:27,279 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 18:12:27,279 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 18:12:27,282 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 18:12:27,282 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 06:12:27" (1/1) ... [2022-12-13 18:12:27,283 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@664c89f9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:12:27, skipping insertion in model container [2022-12-13 18:12:27,283 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 06:12:27" (1/1) ... [2022-12-13 18:12:27,289 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 18:12:27,326 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 18:12:27,457 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_60c67a3d-d842-473d-8a6b-0afef34e69c4/sv-benchmarks/c/pthread-wmm/mix025_pso.opt_rmo.opt.i[999,1012] [2022-12-13 18:12:27,574 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 18:12:27,574 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 18:12:27,575 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 18:12:27,584 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 18:12:27,585 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 18:12:27,585 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 18:12:27,585 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 18:12:27,587 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 18:12:27,588 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 18:12:27,590 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 18:12:27,591 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 18:12:27,591 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 18:12:27,591 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 18:12:27,594 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 18:12:27,594 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 18:12:27,595 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 18:12:27,596 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 18:12:27,596 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 18:12:27,596 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 18:12:27,597 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 18:12:27,597 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 18:12:27,597 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 18:12:27,597 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 18:12:27,600 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 18:12:27,601 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 18:12:27,601 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 18:12:27,607 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 18:12:27,608 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 18:12:27,608 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 18:12:27,611 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 18:12:27,611 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 18:12:27,612 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 18:12:27,613 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 18:12:27,623 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 18:12:27,634 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_60c67a3d-d842-473d-8a6b-0afef34e69c4/sv-benchmarks/c/pthread-wmm/mix025_pso.opt_rmo.opt.i[999,1012] [2022-12-13 18:12:27,657 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 18:12:27,657 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 18:12:27,657 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 18:12:27,665 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 18:12:27,665 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 18:12:27,665 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 18:12:27,665 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 18:12:27,666 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 18:12:27,667 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 18:12:27,668 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 18:12:27,668 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 18:12:27,668 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 18:12:27,668 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 18:12:27,670 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 18:12:27,671 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 18:12:27,671 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 18:12:27,672 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 18:12:27,672 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 18:12:27,672 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 18:12:27,672 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 18:12:27,672 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 18:12:27,673 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 18:12:27,673 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 18:12:27,675 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 18:12:27,675 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 18:12:27,676 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 18:12:27,679 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 18:12:27,679 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 18:12:27,679 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 18:12:27,681 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 18:12:27,681 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 18:12:27,682 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 18:12:27,683 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 18:12:27,710 INFO L208 MainTranslator]: Completed translation [2022-12-13 18:12:27,710 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:12:27 WrapperNode [2022-12-13 18:12:27,710 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 18:12:27,711 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 18:12:27,711 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 18:12:27,712 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 18:12:27,717 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:12:27" (1/1) ... [2022-12-13 18:12:27,731 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:12:27" (1/1) ... [2022-12-13 18:12:27,754 INFO L138 Inliner]: procedures = 176, calls = 56, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 131 [2022-12-13 18:12:27,754 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 18:12:27,755 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 18:12:27,755 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 18:12:27,755 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 18:12:27,762 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:12:27" (1/1) ... [2022-12-13 18:12:27,762 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:12:27" (1/1) ... [2022-12-13 18:12:27,766 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:12:27" (1/1) ... [2022-12-13 18:12:27,766 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:12:27" (1/1) ... [2022-12-13 18:12:27,773 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:12:27" (1/1) ... [2022-12-13 18:12:27,775 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:12:27" (1/1) ... [2022-12-13 18:12:27,777 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:12:27" (1/1) ... [2022-12-13 18:12:27,778 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:12:27" (1/1) ... [2022-12-13 18:12:27,782 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 18:12:27,783 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 18:12:27,783 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 18:12:27,783 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 18:12:27,784 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:12:27" (1/1) ... [2022-12-13 18:12:27,790 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 18:12:27,802 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60c67a3d-d842-473d-8a6b-0afef34e69c4/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 18:12:27,812 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60c67a3d-d842-473d-8a6b-0afef34e69c4/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 18:12:27,814 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60c67a3d-d842-473d-8a6b-0afef34e69c4/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 18:12:27,841 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-13 18:12:27,841 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-12-13 18:12:27,841 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 18:12:27,841 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-13 18:12:27,841 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-13 18:12:27,841 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2022-12-13 18:12:27,841 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2022-12-13 18:12:27,842 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2022-12-13 18:12:27,842 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2022-12-13 18:12:27,842 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2022-12-13 18:12:27,842 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2022-12-13 18:12:27,842 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-13 18:12:27,842 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-12-13 18:12:27,842 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 18:12:27,842 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 18:12:27,844 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 18:12:27,947 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 18:12:27,948 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 18:12:28,184 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 18:12:28,288 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 18:12:28,288 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-13 18:12:28,290 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 06:12:28 BoogieIcfgContainer [2022-12-13 18:12:28,290 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 18:12:28,293 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 18:12:28,293 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 18:12:28,296 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 18:12:28,297 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 06:12:27" (1/3) ... [2022-12-13 18:12:28,297 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5e29f473 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 06:12:28, skipping insertion in model container [2022-12-13 18:12:28,297 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:12:27" (2/3) ... [2022-12-13 18:12:28,298 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5e29f473 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 06:12:28, skipping insertion in model container [2022-12-13 18:12:28,298 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 06:12:28" (3/3) ... [2022-12-13 18:12:28,299 INFO L112 eAbstractionObserver]: Analyzing ICFG mix025_pso.opt_rmo.opt.i [2022-12-13 18:12:28,308 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-12-13 18:12:28,318 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 18:12:28,319 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2022-12-13 18:12:28,319 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-13 18:12:28,372 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-12-13 18:12:28,405 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 128 places, 120 transitions, 255 flow [2022-12-13 18:12:28,450 INFO L130 PetriNetUnfolder]: 2/117 cut-off events. [2022-12-13 18:12:28,450 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 18:12:28,456 INFO L83 FinitePrefix]: Finished finitePrefix Result has 127 conditions, 117 events. 2/117 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 68 event pairs, 0 based on Foata normal form. 0/109 useless extension candidates. Maximal degree in co-relation 77. Up to 2 conditions per place. [2022-12-13 18:12:28,457 INFO L82 GeneralOperation]: Start removeDead. Operand has 128 places, 120 transitions, 255 flow [2022-12-13 18:12:28,460 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 125 places, 117 transitions, 243 flow [2022-12-13 18:12:28,463 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2022-12-13 18:12:28,470 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 125 places, 117 transitions, 243 flow [2022-12-13 18:12:28,472 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 125 places, 117 transitions, 243 flow [2022-12-13 18:12:28,473 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 125 places, 117 transitions, 243 flow [2022-12-13 18:12:28,493 INFO L130 PetriNetUnfolder]: 2/117 cut-off events. [2022-12-13 18:12:28,493 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 18:12:28,494 INFO L83 FinitePrefix]: Finished finitePrefix Result has 127 conditions, 117 events. 2/117 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 68 event pairs, 0 based on Foata normal form. 0/109 useless extension candidates. Maximal degree in co-relation 77. Up to 2 conditions per place. [2022-12-13 18:12:28,495 INFO L119 LiptonReduction]: Number of co-enabled transitions 2562 [2022-12-13 18:12:30,944 INFO L134 LiptonReduction]: Checked pairs total: 7984 [2022-12-13 18:12:30,945 INFO L136 LiptonReduction]: Total number of compositions: 100 [2022-12-13 18:12:30,958 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 18:12:30,962 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;@404e922e, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 18:12:30,962 INFO L358 AbstractCegarLoop]: Starting to check reachability of 15 error locations. [2022-12-13 18:12:30,966 INFO L130 PetriNetUnfolder]: 0/6 cut-off events. [2022-12-13 18:12:30,966 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 18:12:30,966 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 18:12:30,967 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2022-12-13 18:12:30,967 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-12-13 18:12:30,971 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 18:12:30,971 INFO L85 PathProgramCache]: Analyzing trace with hash 489406441, now seen corresponding path program 1 times [2022-12-13 18:12:30,978 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 18:12:30,978 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1581304738] [2022-12-13 18:12:30,978 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 18:12:30,978 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 18:12:31,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:12:31,189 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 18:12:31,190 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 18:12:31,190 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1581304738] [2022-12-13 18:12:31,190 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1581304738] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 18:12:31,190 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 18:12:31,190 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-13 18:12:31,191 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [193466323] [2022-12-13 18:12:31,192 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 18:12:31,197 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 18:12:31,198 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 18:12:31,212 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 18:12:31,213 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 18:12:31,222 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 99 out of 220 [2022-12-13 18:12:31,224 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 37 places, 28 transitions, 65 flow. Second operand has 3 states, 3 states have (on average 100.66666666666667) internal successors, (302), 3 states have internal predecessors, (302), 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 18:12:31,224 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 18:12:31,224 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 99 of 220 [2022-12-13 18:12:31,225 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 18:12:31,442 INFO L130 PetriNetUnfolder]: 929/1492 cut-off events. [2022-12-13 18:12:31,442 INFO L131 PetriNetUnfolder]: For 19/19 co-relation queries the response was YES. [2022-12-13 18:12:31,445 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2997 conditions, 1492 events. 929/1492 cut-off events. For 19/19 co-relation queries the response was YES. Maximal size of possible extension queue 82. Compared 7113 event pairs, 294 based on Foata normal form. 0/1185 useless extension candidates. Maximal degree in co-relation 2986. Up to 1100 conditions per place. [2022-12-13 18:12:31,451 INFO L137 encePairwiseOnDemand]: 209/220 looper letters, 36 selfloop transitions, 4 changer transitions 0/43 dead transitions. [2022-12-13 18:12:31,451 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 39 places, 43 transitions, 181 flow [2022-12-13 18:12:31,452 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 18:12:31,454 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 18:12:31,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 345 transitions. [2022-12-13 18:12:31,461 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5227272727272727 [2022-12-13 18:12:31,461 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 345 transitions. [2022-12-13 18:12:31,461 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 345 transitions. [2022-12-13 18:12:31,468 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 18:12:31,470 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 345 transitions. [2022-12-13 18:12:31,472 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 115.0) internal successors, (345), 3 states have internal predecessors, (345), 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 18:12:31,476 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 220.0) internal successors, (880), 4 states have internal predecessors, (880), 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 18:12:31,476 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 220.0) internal successors, (880), 4 states have internal predecessors, (880), 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 18:12:31,477 INFO L175 Difference]: Start difference. First operand has 37 places, 28 transitions, 65 flow. Second operand 3 states and 345 transitions. [2022-12-13 18:12:31,478 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 39 places, 43 transitions, 181 flow [2022-12-13 18:12:31,480 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 36 places, 43 transitions, 176 flow, removed 0 selfloop flow, removed 3 redundant places. [2022-12-13 18:12:31,481 INFO L231 Difference]: Finished difference. Result has 37 places, 30 transitions, 96 flow [2022-12-13 18:12:31,483 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=220, PETRI_DIFFERENCE_MINUEND_FLOW=60, PETRI_DIFFERENCE_MINUEND_PLACES=34, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=27, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=96, PETRI_PLACES=37, PETRI_TRANSITIONS=30} [2022-12-13 18:12:31,485 INFO L288 CegarLoopForPetriNet]: 37 programPoint places, 0 predicate places. [2022-12-13 18:12:31,486 INFO L495 AbstractCegarLoop]: Abstraction has has 37 places, 30 transitions, 96 flow [2022-12-13 18:12:31,486 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 100.66666666666667) internal successors, (302), 3 states have internal predecessors, (302), 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 18:12:31,486 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 18:12:31,486 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 18:12:31,486 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-13 18:12:31,486 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-12-13 18:12:31,487 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 18:12:31,487 INFO L85 PathProgramCache]: Analyzing trace with hash -273888696, now seen corresponding path program 1 times [2022-12-13 18:12:31,487 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 18:12:31,487 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [130106394] [2022-12-13 18:12:31,487 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 18:12:31,487 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 18:12:31,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:12:31,580 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 18:12:31,580 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 18:12:31,580 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [130106394] [2022-12-13 18:12:31,580 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [130106394] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 18:12:31,581 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 18:12:31,581 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 18:12:31,581 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1590888107] [2022-12-13 18:12:31,581 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 18:12:31,582 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 18:12:31,582 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 18:12:31,582 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 18:12:31,583 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-13 18:12:31,593 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 99 out of 220 [2022-12-13 18:12:31,594 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 37 places, 30 transitions, 96 flow. Second operand has 4 states, 4 states have (on average 101.5) internal successors, (406), 4 states have internal predecessors, (406), 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 18:12:31,594 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 18:12:31,594 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 99 of 220 [2022-12-13 18:12:31,594 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 18:12:31,789 INFO L130 PetriNetUnfolder]: 727/1166 cut-off events. [2022-12-13 18:12:31,789 INFO L131 PetriNetUnfolder]: For 96/96 co-relation queries the response was YES. [2022-12-13 18:12:31,790 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2809 conditions, 1166 events. 727/1166 cut-off events. For 96/96 co-relation queries the response was YES. Maximal size of possible extension queue 65. Compared 5303 event pairs, 246 based on Foata normal form. 0/1021 useless extension candidates. Maximal degree in co-relation 2798. Up to 773 conditions per place. [2022-12-13 18:12:31,793 INFO L137 encePairwiseOnDemand]: 213/220 looper letters, 33 selfloop transitions, 4 changer transitions 0/40 dead transitions. [2022-12-13 18:12:31,794 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 37 places, 40 transitions, 188 flow [2022-12-13 18:12:31,794 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 18:12:31,794 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-12-13 18:12:31,795 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 436 transitions. [2022-12-13 18:12:31,796 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4954545454545455 [2022-12-13 18:12:31,796 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 436 transitions. [2022-12-13 18:12:31,796 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 436 transitions. [2022-12-13 18:12:31,796 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 18:12:31,796 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 436 transitions. [2022-12-13 18:12:31,797 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 109.0) internal successors, (436), 4 states have internal predecessors, (436), 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 18:12:31,799 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 220.0) internal successors, (1100), 5 states have internal predecessors, (1100), 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 18:12:31,799 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 220.0) internal successors, (1100), 5 states have internal predecessors, (1100), 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 18:12:31,799 INFO L175 Difference]: Start difference. First operand has 37 places, 30 transitions, 96 flow. Second operand 4 states and 436 transitions. [2022-12-13 18:12:31,799 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 37 places, 40 transitions, 188 flow [2022-12-13 18:12:31,800 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 36 places, 40 transitions, 184 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-12-13 18:12:31,801 INFO L231 Difference]: Finished difference. Result has 36 places, 27 transitions, 88 flow [2022-12-13 18:12:31,801 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=220, PETRI_DIFFERENCE_MINUEND_FLOW=80, PETRI_DIFFERENCE_MINUEND_PLACES=33, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=27, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=88, PETRI_PLACES=36, PETRI_TRANSITIONS=27} [2022-12-13 18:12:31,801 INFO L288 CegarLoopForPetriNet]: 37 programPoint places, -1 predicate places. [2022-12-13 18:12:31,801 INFO L495 AbstractCegarLoop]: Abstraction has has 36 places, 27 transitions, 88 flow [2022-12-13 18:12:31,802 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 101.5) internal successors, (406), 4 states have internal predecessors, (406), 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 18:12:31,802 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 18:12:31,802 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 18:12:31,802 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-13 18:12:31,802 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-12-13 18:12:31,802 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 18:12:31,802 INFO L85 PathProgramCache]: Analyzing trace with hash -273888695, now seen corresponding path program 1 times [2022-12-13 18:12:31,802 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 18:12:31,803 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [715777730] [2022-12-13 18:12:31,803 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 18:12:31,803 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 18:12:31,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:12:31,872 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 18:12:31,872 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 18:12:31,873 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [715777730] [2022-12-13 18:12:31,873 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [715777730] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 18:12:31,873 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 18:12:31,873 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 18:12:31,873 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1508544323] [2022-12-13 18:12:31,873 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 18:12:31,874 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 18:12:31,874 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 18:12:31,874 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 18:12:31,874 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-12-13 18:12:31,881 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 99 out of 220 [2022-12-13 18:12:31,882 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 36 places, 27 transitions, 88 flow. Second operand has 4 states, 4 states have (on average 101.5) internal successors, (406), 4 states have internal predecessors, (406), 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 18:12:31,882 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 18:12:31,882 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 99 of 220 [2022-12-13 18:12:31,882 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 18:12:32,057 INFO L130 PetriNetUnfolder]: 576/927 cut-off events. [2022-12-13 18:12:32,057 INFO L131 PetriNetUnfolder]: For 314/314 co-relation queries the response was YES. [2022-12-13 18:12:32,058 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2204 conditions, 927 events. 576/927 cut-off events. For 314/314 co-relation queries the response was YES. Maximal size of possible extension queue 58. Compared 4117 event pairs, 218 based on Foata normal form. 0/886 useless extension candidates. Maximal degree in co-relation 2192. Up to 369 conditions per place. [2022-12-13 18:12:32,060 INFO L137 encePairwiseOnDemand]: 213/220 looper letters, 41 selfloop transitions, 7 changer transitions 3/54 dead transitions. [2022-12-13 18:12:32,060 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 39 places, 54 transitions, 256 flow [2022-12-13 18:12:32,060 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 18:12:32,061 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-12-13 18:12:32,061 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 450 transitions. [2022-12-13 18:12:32,062 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5113636363636364 [2022-12-13 18:12:32,062 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 450 transitions. [2022-12-13 18:12:32,062 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 450 transitions. [2022-12-13 18:12:32,062 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 18:12:32,062 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 450 transitions. [2022-12-13 18:12:32,063 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 112.5) internal successors, (450), 4 states have internal predecessors, (450), 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 18:12:32,064 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 220.0) internal successors, (1100), 5 states have internal predecessors, (1100), 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 18:12:32,065 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 220.0) internal successors, (1100), 5 states have internal predecessors, (1100), 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 18:12:32,065 INFO L175 Difference]: Start difference. First operand has 36 places, 27 transitions, 88 flow. Second operand 4 states and 450 transitions. [2022-12-13 18:12:32,065 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 39 places, 54 transitions, 256 flow [2022-12-13 18:12:32,066 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 37 places, 54 transitions, 251 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-12-13 18:12:32,066 INFO L231 Difference]: Finished difference. Result has 38 places, 27 transitions, 109 flow [2022-12-13 18:12:32,066 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=220, PETRI_DIFFERENCE_MINUEND_FLOW=83, PETRI_DIFFERENCE_MINUEND_PLACES=34, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=27, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=20, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=109, PETRI_PLACES=38, PETRI_TRANSITIONS=27} [2022-12-13 18:12:32,067 INFO L288 CegarLoopForPetriNet]: 37 programPoint places, 1 predicate places. [2022-12-13 18:12:32,067 INFO L495 AbstractCegarLoop]: Abstraction has has 38 places, 27 transitions, 109 flow [2022-12-13 18:12:32,067 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 101.5) internal successors, (406), 4 states have internal predecessors, (406), 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 18:12:32,067 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 18:12:32,067 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 18:12:32,067 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-13 18:12:32,068 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-12-13 18:12:32,068 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 18:12:32,068 INFO L85 PathProgramCache]: Analyzing trace with hash -37203132, now seen corresponding path program 1 times [2022-12-13 18:12:32,068 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 18:12:32,068 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [127246625] [2022-12-13 18:12:32,068 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 18:12:32,068 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 18:12:32,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:12:32,149 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 18:12:32,149 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 18:12:32,150 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [127246625] [2022-12-13 18:12:32,150 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [127246625] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 18:12:32,150 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 18:12:32,150 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 18:12:32,150 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [719289913] [2022-12-13 18:12:32,151 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 18:12:32,151 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-13 18:12:32,151 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 18:12:32,151 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 18:12:32,152 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-12-13 18:12:32,158 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 99 out of 220 [2022-12-13 18:12:32,159 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 38 places, 27 transitions, 109 flow. Second operand has 5 states, 5 states have (on average 102.0) internal successors, (510), 5 states have internal predecessors, (510), 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 18:12:32,159 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 18:12:32,160 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 99 of 220 [2022-12-13 18:12:32,160 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 18:12:32,321 INFO L130 PetriNetUnfolder]: 556/891 cut-off events. [2022-12-13 18:12:32,321 INFO L131 PetriNetUnfolder]: For 654/654 co-relation queries the response was YES. [2022-12-13 18:12:32,322 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2383 conditions, 891 events. 556/891 cut-off events. For 654/654 co-relation queries the response was YES. Maximal size of possible extension queue 58. Compared 3971 event pairs, 218 based on Foata normal form. 12/874 useless extension candidates. Maximal degree in co-relation 2370. Up to 369 conditions per place. [2022-12-13 18:12:32,323 INFO L137 encePairwiseOnDemand]: 213/220 looper letters, 0 selfloop transitions, 0 changer transitions 48/48 dead transitions. [2022-12-13 18:12:32,323 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 39 places, 48 transitions, 235 flow [2022-12-13 18:12:32,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 18:12:32,324 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-12-13 18:12:32,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 543 transitions. [2022-12-13 18:12:32,325 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.49363636363636365 [2022-12-13 18:12:32,325 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 543 transitions. [2022-12-13 18:12:32,325 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 543 transitions. [2022-12-13 18:12:32,325 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 18:12:32,325 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 543 transitions. [2022-12-13 18:12:32,326 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 108.6) internal successors, (543), 5 states have internal predecessors, (543), 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 18:12:32,327 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 220.0) internal successors, (1320), 6 states have internal predecessors, (1320), 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 18:12:32,328 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 220.0) internal successors, (1320), 6 states have internal predecessors, (1320), 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 18:12:32,328 INFO L175 Difference]: Start difference. First operand has 38 places, 27 transitions, 109 flow. Second operand 5 states and 543 transitions. [2022-12-13 18:12:32,328 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 39 places, 48 transitions, 235 flow [2022-12-13 18:12:32,329 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 35 places, 48 transitions, 211 flow, removed 3 selfloop flow, removed 4 redundant places. [2022-12-13 18:12:32,330 INFO L231 Difference]: Finished difference. Result has 35 places, 0 transitions, 0 flow [2022-12-13 18:12:32,330 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=220, PETRI_DIFFERENCE_MINUEND_FLOW=67, PETRI_DIFFERENCE_MINUEND_PLACES=31, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=24, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=24, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=0, PETRI_PLACES=35, PETRI_TRANSITIONS=0} [2022-12-13 18:12:32,330 INFO L288 CegarLoopForPetriNet]: 37 programPoint places, -2 predicate places. [2022-12-13 18:12:32,330 INFO L495 AbstractCegarLoop]: Abstraction has has 35 places, 0 transitions, 0 flow [2022-12-13 18:12:32,330 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 102.0) internal successors, (510), 5 states have internal predecessors, (510), 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 18:12:32,332 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 15 remaining) [2022-12-13 18:12:32,333 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 15 remaining) [2022-12-13 18:12:32,333 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 15 remaining) [2022-12-13 18:12:32,333 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 15 remaining) [2022-12-13 18:12:32,333 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 15 remaining) [2022-12-13 18:12:32,333 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 15 remaining) [2022-12-13 18:12:32,333 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 15 remaining) [2022-12-13 18:12:32,333 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (7 of 15 remaining) [2022-12-13 18:12:32,334 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (6 of 15 remaining) [2022-12-13 18:12:32,334 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 15 remaining) [2022-12-13 18:12:32,334 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 15 remaining) [2022-12-13 18:12:32,334 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 15 remaining) [2022-12-13 18:12:32,334 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 15 remaining) [2022-12-13 18:12:32,334 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 15 remaining) [2022-12-13 18:12:32,334 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 15 remaining) [2022-12-13 18:12:32,334 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-13 18:12:32,335 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2022-12-13 18:12:32,338 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-13 18:12:32,339 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-13 18:12:32,341 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.12 06:12:32 BasicIcfg [2022-12-13 18:12:32,341 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-13 18:12:32,342 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-13 18:12:32,342 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-13 18:12:32,342 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-13 18:12:32,342 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 06:12:28" (3/4) ... [2022-12-13 18:12:32,344 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-12-13 18:12:32,348 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2022-12-13 18:12:32,348 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2022-12-13 18:12:32,348 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2022-12-13 18:12:32,351 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 20 nodes and edges [2022-12-13 18:12:32,351 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2022-12-13 18:12:32,351 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-12-13 18:12:32,351 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-12-13 18:12:32,378 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60c67a3d-d842-473d-8a6b-0afef34e69c4/bin/uautomizer-uyxdKDjOR8/witness.graphml [2022-12-13 18:12:32,378 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-13 18:12:32,379 INFO L158 Benchmark]: Toolchain (without parser) took 5100.80ms. Allocated memory was 115.3MB in the beginning and 163.6MB in the end (delta: 48.2MB). Free memory was 79.8MB in the beginning and 86.8MB in the end (delta: -6.9MB). Peak memory consumption was 43.4MB. Max. memory is 16.1GB. [2022-12-13 18:12:32,379 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 115.3MB. Free memory was 81.3MB in the beginning and 81.3MB in the end (delta: 28.2kB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 18:12:32,379 INFO L158 Benchmark]: CACSL2BoogieTranslator took 431.61ms. Allocated memory is still 115.3MB. Free memory was 79.3MB in the beginning and 53.6MB in the end (delta: 25.7MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2022-12-13 18:12:32,379 INFO L158 Benchmark]: Boogie Procedure Inliner took 42.94ms. Allocated memory is still 115.3MB. Free memory was 53.1MB in the beginning and 50.9MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 18:12:32,380 INFO L158 Benchmark]: Boogie Preprocessor took 27.20ms. Allocated memory is still 115.3MB. Free memory was 50.9MB in the beginning and 48.9MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 18:12:32,380 INFO L158 Benchmark]: RCFGBuilder took 507.94ms. Allocated memory was 115.3MB in the beginning and 163.6MB in the end (delta: 48.2MB). Free memory was 48.9MB in the beginning and 110.1MB in the end (delta: -61.1MB). Peak memory consumption was 21.2MB. Max. memory is 16.1GB. [2022-12-13 18:12:32,380 INFO L158 Benchmark]: TraceAbstraction took 4047.98ms. Allocated memory is still 163.6MB. Free memory was 110.1MB in the beginning and 89.9MB in the end (delta: 20.1MB). Peak memory consumption was 74.8MB. Max. memory is 16.1GB. [2022-12-13 18:12:32,380 INFO L158 Benchmark]: Witness Printer took 36.63ms. Allocated memory is still 163.6MB. Free memory was 89.9MB in the beginning and 86.8MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 18:12:32,382 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 115.3MB. Free memory was 81.3MB in the beginning and 81.3MB in the end (delta: 28.2kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 431.61ms. Allocated memory is still 115.3MB. Free memory was 79.3MB in the beginning and 53.6MB in the end (delta: 25.7MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 42.94ms. Allocated memory is still 115.3MB. Free memory was 53.1MB in the beginning and 50.9MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 27.20ms. Allocated memory is still 115.3MB. Free memory was 50.9MB in the beginning and 48.9MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 507.94ms. Allocated memory was 115.3MB in the beginning and 163.6MB in the end (delta: 48.2MB). Free memory was 48.9MB in the beginning and 110.1MB in the end (delta: -61.1MB). Peak memory consumption was 21.2MB. Max. memory is 16.1GB. * TraceAbstraction took 4047.98ms. Allocated memory is still 163.6MB. Free memory was 110.1MB in the beginning and 89.9MB in the end (delta: 20.1MB). Peak memory consumption was 74.8MB. Max. memory is 16.1GB. * Witness Printer took 36.63ms. Allocated memory is still 163.6MB. Free memory was 89.9MB in the beginning and 86.8MB in the end (delta: 3.1MB). 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: 2.5s, 125 PlacesBefore, 37 PlacesAfterwards, 117 TransitionsBefore, 28 TransitionsAfterwards, 2562 CoEnabledTransitionPairs, 6 FixpointIterations, 42 TrivialSequentialCompositions, 48 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 9 ConcurrentYvCompositions, 1 ChoiceCompositions, 100 TotalNumberOfCompositions, 7984 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 3762, independent: 3525, independent conditional: 0, independent unconditional: 3525, dependent: 237, dependent conditional: 0, dependent unconditional: 237, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 1428, independent: 1367, independent conditional: 0, independent unconditional: 1367, dependent: 61, dependent conditional: 0, dependent unconditional: 61, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 3762, independent: 2158, independent conditional: 0, independent unconditional: 2158, dependent: 176, dependent conditional: 0, dependent unconditional: 176, unknown: 1428, unknown conditional: 0, unknown unconditional: 1428] , Statistics on independence cache: Total cache size (in pairs): 151, Positive cache size: 131, Positive conditional cache size: 0, Positive unconditional cache size: 131, Negative cache size: 20, Negative conditional cache size: 0, Negative unconditional cache size: 20, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 767]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 767]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 796]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 796]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 819]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 819]: 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 7 procedures, 152 locations, 15 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: 3.9s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.6s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 165 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 137 mSDsluCounter, 10 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 41 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 251 IncrementalHoareTripleChecker+Invalid, 292 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 41 mSolverCounterUnsat, 10 mSDtfsCounter, 251 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 8 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=109occurred in iteration=3, InterpolantAutomatonStates: 16, 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, 0.3s InterpolantComputationTime, 45 NumberOfCodeBlocks, 45 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 41 ConstructedInterpolants, 0 QuantifiedInterpolants, 123 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 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 6 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-12-13 18:12:32,396 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60c67a3d-d842-473d-8a6b-0afef34e69c4/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