./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/pthread-wmm/safe009_rmo.oepc.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 38b53e6a Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_017e1503-6c36-453c-af10-030c4c3f06f0/bin/uautomizer-ZsLfNo2U6R/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_017e1503-6c36-453c-af10-030c4c3f06f0/bin/uautomizer-ZsLfNo2U6R/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_017e1503-6c36-453c-af10-030c4c3f06f0/bin/uautomizer-ZsLfNo2U6R/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_017e1503-6c36-453c-af10-030c4c3f06f0/bin/uautomizer-ZsLfNo2U6R/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-wmm/safe009_rmo.oepc.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_017e1503-6c36-453c-af10-030c4c3f06f0/bin/uautomizer-ZsLfNo2U6R/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_017e1503-6c36-453c-af10-030c4c3f06f0/bin/uautomizer-ZsLfNo2U6R --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 d4dfc0bbdb080812f042fcb42d1e3b37e9e0d49ae456458f71f0b25bb99756b4 --- 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-38b53e6 [2022-11-25 18:15:51,339 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-25 18:15:51,342 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-25 18:15:51,382 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-25 18:15:51,387 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-25 18:15:51,392 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-25 18:15:51,394 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-25 18:15:51,397 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-25 18:15:51,401 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-25 18:15:51,407 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-25 18:15:51,409 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-25 18:15:51,412 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-25 18:15:51,414 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-25 18:15:51,417 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-25 18:15:51,419 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-25 18:15:51,421 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-25 18:15:51,424 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-25 18:15:51,426 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-25 18:15:51,429 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-25 18:15:51,435 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-25 18:15:51,441 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-25 18:15:51,443 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-25 18:15:51,446 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-25 18:15:51,448 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-25 18:15:51,456 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-25 18:15:51,461 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-25 18:15:51,462 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-25 18:15:51,464 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-25 18:15:51,465 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-25 18:15:51,466 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-25 18:15:51,469 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-25 18:15:51,470 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-25 18:15:51,472 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-25 18:15:51,474 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-25 18:15:51,476 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-25 18:15:51,477 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-25 18:15:51,478 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-25 18:15:51,478 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-25 18:15:51,478 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-25 18:15:51,482 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-25 18:15:51,484 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-25 18:15:51,485 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_017e1503-6c36-453c-af10-030c4c3f06f0/bin/uautomizer-ZsLfNo2U6R/config/svcomp-Overflow-32bit-Automizer_Default.epf [2022-11-25 18:15:51,533 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-25 18:15:51,536 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-25 18:15:51,537 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-25 18:15:51,537 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-25 18:15:51,539 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-25 18:15:51,539 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-25 18:15:51,540 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-25 18:15:51,540 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-25 18:15:51,540 INFO L138 SettingsManager]: * Use SBE=true [2022-11-25 18:15:51,541 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-25 18:15:51,542 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-25 18:15:51,543 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-25 18:15:51,543 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-25 18:15:51,543 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-25 18:15:51,543 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-25 18:15:51,544 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-25 18:15:51,544 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-25 18:15:51,544 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-25 18:15:51,545 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-25 18:15:51,545 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-25 18:15:51,545 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-25 18:15:51,545 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-25 18:15:51,546 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-25 18:15:51,546 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-25 18:15:51,546 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-25 18:15:51,546 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-25 18:15:51,547 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 18:15:51,547 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-25 18:15:51,547 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-25 18:15:51,548 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-25 18:15:51,548 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-25 18:15:51,548 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-25 18:15:51,549 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-25 18:15:51,549 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-25 18:15:51,549 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-11-25 18:15:51,550 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-25 18:15:51,550 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_017e1503-6c36-453c-af10-030c4c3f06f0/bin/uautomizer-ZsLfNo2U6R/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_017e1503-6c36-453c-af10-030c4c3f06f0/bin/uautomizer-ZsLfNo2U6R Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d4dfc0bbdb080812f042fcb42d1e3b37e9e0d49ae456458f71f0b25bb99756b4 [2022-11-25 18:15:51,862 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-25 18:15:51,899 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-25 18:15:51,902 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-25 18:15:51,904 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-25 18:15:51,905 INFO L275 PluginConnector]: CDTParser initialized [2022-11-25 18:15:51,906 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_017e1503-6c36-453c-af10-030c4c3f06f0/bin/uautomizer-ZsLfNo2U6R/../../sv-benchmarks/c/pthread-wmm/safe009_rmo.oepc.i [2022-11-25 18:15:55,621 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-25 18:15:56,119 INFO L351 CDTParser]: Found 1 translation units. [2022-11-25 18:15:56,120 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_017e1503-6c36-453c-af10-030c4c3f06f0/sv-benchmarks/c/pthread-wmm/safe009_rmo.oepc.i [2022-11-25 18:15:56,152 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_017e1503-6c36-453c-af10-030c4c3f06f0/bin/uautomizer-ZsLfNo2U6R/data/99ee19283/9e8691448f1b47019f1c16e0905154f7/FLAG57dfdd8e2 [2022-11-25 18:15:56,170 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_017e1503-6c36-453c-af10-030c4c3f06f0/bin/uautomizer-ZsLfNo2U6R/data/99ee19283/9e8691448f1b47019f1c16e0905154f7 [2022-11-25 18:15:56,173 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-25 18:15:56,175 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-25 18:15:56,177 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-25 18:15:56,177 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-25 18:15:56,182 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-25 18:15:56,183 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 06:15:56" (1/1) ... [2022-11-25 18:15:56,184 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@32a2ec81 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:15:56, skipping insertion in model container [2022-11-25 18:15:56,185 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 06:15:56" (1/1) ... [2022-11-25 18:15:56,195 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-25 18:15:56,250 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-25 18:15:56,470 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_017e1503-6c36-453c-af10-030c4c3f06f0/sv-benchmarks/c/pthread-wmm/safe009_rmo.oepc.i[993,1006] [2022-11-25 18:15:56,764 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 18:15:56,803 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 18:15:56,804 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 18:15:56,804 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 18:15:56,805 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 18:15:56,805 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 18:15:56,806 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 18:15:56,812 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 18:15:56,820 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 18:15:56,820 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 18:15:56,821 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 18:15:56,823 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 18:15:56,823 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 18:15:56,838 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 18:15:56,840 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 18:15:56,840 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 18:15:56,842 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 18:15:56,843 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 18:15:56,843 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 18:15:56,854 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 18:15:56,855 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 18:15:56,857 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 18:15:56,868 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 18:15:56,876 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 18:15:56,879 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 18:15:56,883 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 18:15:56,885 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 18:15:56,896 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 18:15:56,903 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 18:15:56,926 INFO L203 MainTranslator]: Completed pre-run [2022-11-25 18:15:56,944 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_017e1503-6c36-453c-af10-030c4c3f06f0/sv-benchmarks/c/pthread-wmm/safe009_rmo.oepc.i[993,1006] [2022-11-25 18:15:56,997 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 18:15:57,019 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 18:15:57,029 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 18:15:57,030 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 18:15:57,030 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 18:15:57,030 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 18:15:57,031 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 18:15:57,031 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 18:15:57,033 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 18:15:57,034 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 18:15:57,041 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 18:15:57,041 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 18:15:57,042 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 18:15:57,045 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 18:15:57,045 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 18:15:57,046 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 18:15:57,047 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 18:15:57,050 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 18:15:57,051 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 18:15:57,054 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 18:15:57,065 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 18:15:57,066 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 18:15:57,071 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 18:15:57,071 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 18:15:57,072 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 18:15:57,074 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 18:15:57,075 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 18:15:57,083 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 18:15:57,084 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 18:15:57,139 INFO L208 MainTranslator]: Completed translation [2022-11-25 18:15:57,140 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:15:57 WrapperNode [2022-11-25 18:15:57,140 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-25 18:15:57,142 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-25 18:15:57,142 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-25 18:15:57,142 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-25 18:15:57,153 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:15:57" (1/1) ... [2022-11-25 18:15:57,193 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:15:57" (1/1) ... [2022-11-25 18:15:57,262 INFO L138 Inliner]: procedures = 176, calls = 74, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 166 [2022-11-25 18:15:57,264 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-25 18:15:57,265 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-25 18:15:57,266 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-25 18:15:57,267 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-25 18:15:57,281 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:15:57" (1/1) ... [2022-11-25 18:15:57,281 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:15:57" (1/1) ... [2022-11-25 18:15:57,302 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:15:57" (1/1) ... [2022-11-25 18:15:57,308 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:15:57" (1/1) ... [2022-11-25 18:15:57,318 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:15:57" (1/1) ... [2022-11-25 18:15:57,337 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:15:57" (1/1) ... [2022-11-25 18:15:57,340 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:15:57" (1/1) ... [2022-11-25 18:15:57,343 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:15:57" (1/1) ... [2022-11-25 18:15:57,347 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-25 18:15:57,361 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-25 18:15:57,362 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-25 18:15:57,362 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-25 18:15:57,363 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:15:57" (1/1) ... [2022-11-25 18:15:57,373 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 18:15:57,396 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_017e1503-6c36-453c-af10-030c4c3f06f0/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 18:15:57,421 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_017e1503-6c36-453c-af10-030c4c3f06f0/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-25 18:15:57,459 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_017e1503-6c36-453c-af10-030c4c3f06f0/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-25 18:15:57,488 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-25 18:15:57,489 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-25 18:15:57,490 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-11-25 18:15:57,490 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-25 18:15:57,490 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-25 18:15:57,490 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-25 18:15:57,491 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2022-11-25 18:15:57,491 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2022-11-25 18:15:57,491 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2022-11-25 18:15:57,491 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2022-11-25 18:15:57,492 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2022-11-25 18:15:57,492 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2022-11-25 18:15:57,492 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-25 18:15:57,492 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-11-25 18:15:57,493 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-25 18:15:57,494 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-25 18:15:57,496 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-25 18:15:57,740 INFO L235 CfgBuilder]: Building ICFG [2022-11-25 18:15:57,743 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-25 18:15:58,485 INFO L276 CfgBuilder]: Performing block encoding [2022-11-25 18:15:59,019 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-25 18:15:59,020 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-25 18:15:59,023 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 06:15:59 BoogieIcfgContainer [2022-11-25 18:15:59,024 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-25 18:15:59,027 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-25 18:15:59,028 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-25 18:15:59,033 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-25 18:15:59,033 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 06:15:56" (1/3) ... [2022-11-25 18:15:59,036 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@56f6caac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 06:15:59, skipping insertion in model container [2022-11-25 18:15:59,036 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:15:57" (2/3) ... [2022-11-25 18:15:59,038 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@56f6caac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 06:15:59, skipping insertion in model container [2022-11-25 18:15:59,038 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 06:15:59" (3/3) ... [2022-11-25 18:15:59,043 INFO L112 eAbstractionObserver]: Analyzing ICFG safe009_rmo.oepc.i [2022-11-25 18:15:59,056 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-25 18:15:59,071 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-25 18:15:59,072 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2022-11-25 18:15:59,072 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-25 18:15:59,178 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-11-25 18:15:59,240 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 143 places, 135 transitions, 285 flow [2022-11-25 18:15:59,336 INFO L130 PetriNetUnfolder]: 2/132 cut-off events. [2022-11-25 18:15:59,337 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-25 18:15:59,343 INFO L83 FinitePrefix]: Finished finitePrefix Result has 142 conditions, 132 events. 2/132 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 65 event pairs, 0 based on Foata normal form. 0/124 useless extension candidates. Maximal degree in co-relation 75. Up to 2 conditions per place. [2022-11-25 18:15:59,343 INFO L82 GeneralOperation]: Start removeDead. Operand has 143 places, 135 transitions, 285 flow [2022-11-25 18:15:59,354 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 140 places, 132 transitions, 273 flow [2022-11-25 18:15:59,361 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-25 18:15:59,382 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 140 places, 132 transitions, 273 flow [2022-11-25 18:15:59,399 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 140 places, 132 transitions, 273 flow [2022-11-25 18:15:59,400 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 140 places, 132 transitions, 273 flow [2022-11-25 18:15:59,459 INFO L130 PetriNetUnfolder]: 2/132 cut-off events. [2022-11-25 18:15:59,461 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-25 18:15:59,463 INFO L83 FinitePrefix]: Finished finitePrefix Result has 142 conditions, 132 events. 2/132 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 65 event pairs, 0 based on Foata normal form. 0/124 useless extension candidates. Maximal degree in co-relation 75. Up to 2 conditions per place. [2022-11-25 18:15:59,466 INFO L119 LiptonReduction]: Number of co-enabled transitions 2366 [2022-11-25 18:16:19,172 INFO L134 LiptonReduction]: Checked pairs total: 7913 [2022-11-25 18:16:19,173 INFO L136 LiptonReduction]: Total number of compositions: 121 [2022-11-25 18:16:19,189 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-25 18:16:19,197 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;@463a40da, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-25 18:16:19,197 INFO L358 AbstractCegarLoop]: Starting to check reachability of 15 error locations. [2022-11-25 18:16:19,201 INFO L130 PetriNetUnfolder]: 0/5 cut-off events. [2022-11-25 18:16:19,202 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-25 18:16:19,202 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 18:16:19,203 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2022-11-25 18:16:19,203 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-11-25 18:16:19,209 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:16:19,209 INFO L85 PathProgramCache]: Analyzing trace with hash 23952489, now seen corresponding path program 1 times [2022-11-25 18:16:19,220 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:16:19,220 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1620434967] [2022-11-25 18:16:19,221 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:16:19,221 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:16:19,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:16:19,572 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 18:16:19,573 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 18:16:19,574 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1620434967] [2022-11-25 18:16:19,575 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1620434967] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:16:19,575 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:16:19,576 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-25 18:16:19,577 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2038239026] [2022-11-25 18:16:19,578 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:16:19,589 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 18:16:19,589 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 18:16:19,623 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 18:16:19,627 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 18:16:19,654 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 114 out of 256 [2022-11-25 18:16:19,660 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 35 places, 26 transitions, 61 flow. Second operand has 3 states, 3 states have (on average 115.33333333333333) internal successors, (346), 3 states have internal predecessors, (346), 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) [2022-11-25 18:16:19,660 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 18:16:19,661 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 114 of 256 [2022-11-25 18:16:19,662 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 18:16:20,233 INFO L130 PetriNetUnfolder]: 741/1177 cut-off events. [2022-11-25 18:16:20,234 INFO L131 PetriNetUnfolder]: For 15/15 co-relation queries the response was YES. [2022-11-25 18:16:20,238 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2394 conditions, 1177 events. 741/1177 cut-off events. For 15/15 co-relation queries the response was YES. Maximal size of possible extension queue 98. Compared 5586 event pairs, 207 based on Foata normal form. 44/1008 useless extension candidates. Maximal degree in co-relation 2383. Up to 953 conditions per place. [2022-11-25 18:16:20,247 INFO L137 encePairwiseOnDemand]: 245/256 looper letters, 34 selfloop transitions, 4 changer transitions 0/40 dead transitions. [2022-11-25 18:16:20,248 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 37 places, 40 transitions, 171 flow [2022-11-25 18:16:20,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 18:16:20,253 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-25 18:16:20,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 388 transitions. [2022-11-25 18:16:20,266 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5052083333333334 [2022-11-25 18:16:20,268 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 388 transitions. [2022-11-25 18:16:20,268 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 388 transitions. [2022-11-25 18:16:20,270 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 18:16:20,274 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 388 transitions. [2022-11-25 18:16:20,280 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 129.33333333333334) internal successors, (388), 3 states have internal predecessors, (388), 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) [2022-11-25 18:16:20,287 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 256.0) internal successors, (1024), 4 states have internal predecessors, (1024), 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) [2022-11-25 18:16:20,289 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 256.0) internal successors, (1024), 4 states have internal predecessors, (1024), 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) [2022-11-25 18:16:20,291 INFO L175 Difference]: Start difference. First operand has 35 places, 26 transitions, 61 flow. Second operand 3 states and 388 transitions. [2022-11-25 18:16:20,293 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 37 places, 40 transitions, 171 flow [2022-11-25 18:16:20,296 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 34 places, 40 transitions, 166 flow, removed 0 selfloop flow, removed 3 redundant places. [2022-11-25 18:16:20,299 INFO L231 Difference]: Finished difference. Result has 35 places, 28 transitions, 92 flow [2022-11-25 18:16:20,302 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=256, PETRI_DIFFERENCE_MINUEND_FLOW=56, PETRI_DIFFERENCE_MINUEND_PLACES=32, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=25, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=92, PETRI_PLACES=35, PETRI_TRANSITIONS=28} [2022-11-25 18:16:20,306 INFO L288 CegarLoopForPetriNet]: 35 programPoint places, 0 predicate places. [2022-11-25 18:16:20,306 INFO L495 AbstractCegarLoop]: Abstraction has has 35 places, 28 transitions, 92 flow [2022-11-25 18:16:20,307 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 115.33333333333333) internal successors, (346), 3 states have internal predecessors, (346), 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) [2022-11-25 18:16:20,307 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 18:16:20,307 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 18:16:20,308 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-25 18:16:20,308 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-11-25 18:16:20,309 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:16:20,309 INFO L85 PathProgramCache]: Analyzing trace with hash -1904274098, now seen corresponding path program 1 times [2022-11-25 18:16:20,309 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:16:20,310 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1027973107] [2022-11-25 18:16:20,310 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:16:20,310 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:16:20,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:16:20,489 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 18:16:20,489 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 18:16:20,490 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1027973107] [2022-11-25 18:16:20,490 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1027973107] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:16:20,490 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:16:20,490 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-25 18:16:20,491 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [576209377] [2022-11-25 18:16:20,491 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:16:20,492 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-25 18:16:20,492 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 18:16:20,493 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-25 18:16:20,493 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-25 18:16:20,501 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 114 out of 256 [2022-11-25 18:16:20,501 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 35 places, 28 transitions, 92 flow. Second operand has 4 states, 4 states have (on average 116.0) internal successors, (464), 4 states have internal predecessors, (464), 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) [2022-11-25 18:16:20,502 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 18:16:20,502 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 114 of 256 [2022-11-25 18:16:20,502 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 18:16:20,845 INFO L130 PetriNetUnfolder]: 553/873 cut-off events. [2022-11-25 18:16:20,846 INFO L131 PetriNetUnfolder]: For 74/74 co-relation queries the response was YES. [2022-11-25 18:16:20,849 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2182 conditions, 873 events. 553/873 cut-off events. For 74/74 co-relation queries the response was YES. Maximal size of possible extension queue 59. Compared 3715 event pairs, 159 based on Foata normal form. 104/870 useless extension candidates. Maximal degree in co-relation 2171. Up to 648 conditions per place. [2022-11-25 18:16:20,853 INFO L137 encePairwiseOnDemand]: 249/256 looper letters, 31 selfloop transitions, 4 changer transitions 0/37 dead transitions. [2022-11-25 18:16:20,853 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 35 places, 37 transitions, 178 flow [2022-11-25 18:16:20,853 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-25 18:16:20,854 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-11-25 18:16:20,856 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 494 transitions. [2022-11-25 18:16:20,858 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.482421875 [2022-11-25 18:16:20,858 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 494 transitions. [2022-11-25 18:16:20,858 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 494 transitions. [2022-11-25 18:16:20,859 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 18:16:20,859 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 494 transitions. [2022-11-25 18:16:20,862 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 123.5) internal successors, (494), 4 states have internal predecessors, (494), 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) [2022-11-25 18:16:20,866 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 256.0) internal successors, (1280), 5 states have internal predecessors, (1280), 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) [2022-11-25 18:16:20,867 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 256.0) internal successors, (1280), 5 states have internal predecessors, (1280), 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) [2022-11-25 18:16:20,867 INFO L175 Difference]: Start difference. First operand has 35 places, 28 transitions, 92 flow. Second operand 4 states and 494 transitions. [2022-11-25 18:16:20,867 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 35 places, 37 transitions, 178 flow [2022-11-25 18:16:20,872 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 34 places, 37 transitions, 174 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-25 18:16:20,873 INFO L231 Difference]: Finished difference. Result has 34 places, 25 transitions, 84 flow [2022-11-25 18:16:20,874 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=256, PETRI_DIFFERENCE_MINUEND_FLOW=76, PETRI_DIFFERENCE_MINUEND_PLACES=31, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=25, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=84, PETRI_PLACES=34, PETRI_TRANSITIONS=25} [2022-11-25 18:16:20,877 INFO L288 CegarLoopForPetriNet]: 35 programPoint places, -1 predicate places. [2022-11-25 18:16:20,877 INFO L495 AbstractCegarLoop]: Abstraction has has 34 places, 25 transitions, 84 flow [2022-11-25 18:16:20,878 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 116.0) internal successors, (464), 4 states have internal predecessors, (464), 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) [2022-11-25 18:16:20,878 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 18:16:20,879 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 18:16:20,879 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-25 18:16:20,879 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-11-25 18:16:20,882 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:16:20,882 INFO L85 PathProgramCache]: Analyzing trace with hash 1097215848, now seen corresponding path program 1 times [2022-11-25 18:16:20,883 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:16:20,883 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1586139137] [2022-11-25 18:16:20,884 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:16:20,885 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:16:20,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:16:21,019 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 18:16:21,019 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 18:16:21,019 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1586139137] [2022-11-25 18:16:21,020 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1586139137] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:16:21,020 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:16:21,020 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-25 18:16:21,020 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [37941439] [2022-11-25 18:16:21,020 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:16:21,021 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-25 18:16:21,021 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 18:16:21,021 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-25 18:16:21,022 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-25 18:16:21,029 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 114 out of 256 [2022-11-25 18:16:21,030 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 34 places, 25 transitions, 84 flow. Second operand has 4 states, 4 states have (on average 116.25) internal successors, (465), 4 states have internal predecessors, (465), 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) [2022-11-25 18:16:21,030 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 18:16:21,030 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 114 of 256 [2022-11-25 18:16:21,030 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 18:16:21,311 INFO L130 PetriNetUnfolder]: 416/656 cut-off events. [2022-11-25 18:16:21,311 INFO L131 PetriNetUnfolder]: For 244/244 co-relation queries the response was YES. [2022-11-25 18:16:21,312 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1629 conditions, 656 events. 416/656 cut-off events. For 244/244 co-relation queries the response was YES. Maximal size of possible extension queue 47. Compared 2589 event pairs, 131 based on Foata normal form. 0/641 useless extension candidates. Maximal degree in co-relation 1617. Up to 281 conditions per place. [2022-11-25 18:16:21,315 INFO L137 encePairwiseOnDemand]: 249/256 looper letters, 38 selfloop transitions, 7 changer transitions 3/50 dead transitions. [2022-11-25 18:16:21,316 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 37 places, 50 transitions, 242 flow [2022-11-25 18:16:21,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-25 18:16:21,316 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-11-25 18:16:21,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 507 transitions. [2022-11-25 18:16:21,318 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4951171875 [2022-11-25 18:16:21,318 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 507 transitions. [2022-11-25 18:16:21,319 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 507 transitions. [2022-11-25 18:16:21,319 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 18:16:21,319 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 507 transitions. [2022-11-25 18:16:21,321 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 126.75) internal successors, (507), 4 states have internal predecessors, (507), 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) [2022-11-25 18:16:21,323 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 256.0) internal successors, (1280), 5 states have internal predecessors, (1280), 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) [2022-11-25 18:16:21,324 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 256.0) internal successors, (1280), 5 states have internal predecessors, (1280), 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) [2022-11-25 18:16:21,324 INFO L175 Difference]: Start difference. First operand has 34 places, 25 transitions, 84 flow. Second operand 4 states and 507 transitions. [2022-11-25 18:16:21,324 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 37 places, 50 transitions, 242 flow [2022-11-25 18:16:21,326 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 35 places, 50 transitions, 237 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-25 18:16:21,326 INFO L231 Difference]: Finished difference. Result has 36 places, 25 transitions, 105 flow [2022-11-25 18:16:21,327 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=256, PETRI_DIFFERENCE_MINUEND_FLOW=79, PETRI_DIFFERENCE_MINUEND_PLACES=32, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=25, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=18, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=105, PETRI_PLACES=36, PETRI_TRANSITIONS=25} [2022-11-25 18:16:21,327 INFO L288 CegarLoopForPetriNet]: 35 programPoint places, 1 predicate places. [2022-11-25 18:16:21,328 INFO L495 AbstractCegarLoop]: Abstraction has has 36 places, 25 transitions, 105 flow [2022-11-25 18:16:21,328 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 116.25) internal successors, (465), 4 states have internal predecessors, (465), 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) [2022-11-25 18:16:21,328 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 18:16:21,329 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 18:16:21,329 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-25 18:16:21,329 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-11-25 18:16:21,329 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:16:21,330 INFO L85 PathProgramCache]: Analyzing trace with hash -949233946, now seen corresponding path program 1 times [2022-11-25 18:16:21,330 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:16:21,330 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [289293502] [2022-11-25 18:16:21,330 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:16:21,331 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:16:21,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:16:21,519 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 18:16:21,520 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 18:16:21,520 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [289293502] [2022-11-25 18:16:21,520 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [289293502] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:16:21,520 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:16:21,520 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 18:16:21,521 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1818307896] [2022-11-25 18:16:21,521 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:16:21,521 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-25 18:16:21,521 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 18:16:21,522 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-25 18:16:21,522 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-11-25 18:16:21,532 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 114 out of 256 [2022-11-25 18:16:21,533 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 36 places, 25 transitions, 105 flow. Second operand has 5 states, 5 states have (on average 116.8) internal successors, (584), 5 states have internal predecessors, (584), 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) [2022-11-25 18:16:21,533 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 18:16:21,533 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 114 of 256 [2022-11-25 18:16:21,533 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 18:16:21,793 INFO L130 PetriNetUnfolder]: 396/620 cut-off events. [2022-11-25 18:16:21,793 INFO L131 PetriNetUnfolder]: For 510/510 co-relation queries the response was YES. [2022-11-25 18:16:21,794 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1766 conditions, 620 events. 396/620 cut-off events. For 510/510 co-relation queries the response was YES. Maximal size of possible extension queue 47. Compared 2456 event pairs, 131 based on Foata normal form. 12/629 useless extension candidates. Maximal degree in co-relation 1753. Up to 281 conditions per place. [2022-11-25 18:16:21,795 INFO L137 encePairwiseOnDemand]: 249/256 looper letters, 0 selfloop transitions, 0 changer transitions 44/44 dead transitions. [2022-11-25 18:16:21,796 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 37 places, 44 transitions, 221 flow [2022-11-25 18:16:21,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-25 18:16:21,796 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-11-25 18:16:21,798 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 615 transitions. [2022-11-25 18:16:21,798 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.48046875 [2022-11-25 18:16:21,798 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 615 transitions. [2022-11-25 18:16:21,798 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 615 transitions. [2022-11-25 18:16:21,799 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 18:16:21,799 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 615 transitions. [2022-11-25 18:16:21,801 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 123.0) internal successors, (615), 5 states have internal predecessors, (615), 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) [2022-11-25 18:16:21,804 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 256.0) internal successors, (1536), 6 states have internal predecessors, (1536), 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) [2022-11-25 18:16:21,805 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 256.0) internal successors, (1536), 6 states have internal predecessors, (1536), 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) [2022-11-25 18:16:21,805 INFO L175 Difference]: Start difference. First operand has 36 places, 25 transitions, 105 flow. Second operand 5 states and 615 transitions. [2022-11-25 18:16:21,805 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 37 places, 44 transitions, 221 flow [2022-11-25 18:16:21,807 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 33 places, 44 transitions, 197 flow, removed 3 selfloop flow, removed 4 redundant places. [2022-11-25 18:16:21,808 INFO L231 Difference]: Finished difference. Result has 33 places, 0 transitions, 0 flow [2022-11-25 18:16:21,808 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=256, PETRI_DIFFERENCE_MINUEND_FLOW=63, PETRI_DIFFERENCE_MINUEND_PLACES=29, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=22, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=22, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=0, PETRI_PLACES=33, PETRI_TRANSITIONS=0} [2022-11-25 18:16:21,809 INFO L288 CegarLoopForPetriNet]: 35 programPoint places, -2 predicate places. [2022-11-25 18:16:21,809 INFO L495 AbstractCegarLoop]: Abstraction has has 33 places, 0 transitions, 0 flow [2022-11-25 18:16:21,809 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 116.8) internal successors, (584), 5 states have internal predecessors, (584), 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) [2022-11-25 18:16:21,812 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 15 remaining) [2022-11-25 18:16:21,813 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 15 remaining) [2022-11-25 18:16:21,813 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 15 remaining) [2022-11-25 18:16:21,813 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 15 remaining) [2022-11-25 18:16:21,813 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 15 remaining) [2022-11-25 18:16:21,813 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 15 remaining) [2022-11-25 18:16:21,814 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 15 remaining) [2022-11-25 18:16:21,814 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (7 of 15 remaining) [2022-11-25 18:16:21,814 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (6 of 15 remaining) [2022-11-25 18:16:21,814 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 15 remaining) [2022-11-25 18:16:21,815 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 15 remaining) [2022-11-25 18:16:21,815 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 15 remaining) [2022-11-25 18:16:21,815 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 15 remaining) [2022-11-25 18:16:21,815 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 15 remaining) [2022-11-25 18:16:21,815 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 15 remaining) [2022-11-25 18:16:21,816 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-25 18:16:21,816 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2022-11-25 18:16:21,821 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-25 18:16:21,822 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-25 18:16:21,826 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.11 06:16:21 BasicIcfg [2022-11-25 18:16:21,826 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-25 18:16:21,826 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-25 18:16:21,826 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-25 18:16:21,827 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-25 18:16:21,827 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 06:15:59" (3/4) ... [2022-11-25 18:16:21,830 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-25 18:16:21,835 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2022-11-25 18:16:21,836 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2022-11-25 18:16:21,836 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2022-11-25 18:16:21,842 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 61 nodes and edges [2022-11-25 18:16:21,842 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 16 nodes and edges [2022-11-25 18:16:21,843 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2022-11-25 18:16:21,843 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-25 18:16:21,944 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_017e1503-6c36-453c-af10-030c4c3f06f0/bin/uautomizer-ZsLfNo2U6R/witness.graphml [2022-11-25 18:16:21,945 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-25 18:16:21,945 INFO L158 Benchmark]: Toolchain (without parser) took 25770.66ms. Allocated memory was 180.4MB in the beginning and 293.6MB in the end (delta: 113.2MB). Free memory was 148.7MB in the beginning and 253.8MB in the end (delta: -105.1MB). Peak memory consumption was 177.4MB. Max. memory is 16.1GB. [2022-11-25 18:16:21,946 INFO L158 Benchmark]: CDTParser took 0.41ms. Allocated memory is still 117.4MB. Free memory is still 71.4MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 18:16:21,946 INFO L158 Benchmark]: CACSL2BoogieTranslator took 963.88ms. Allocated memory is still 180.4MB. Free memory was 148.7MB in the beginning and 121.5MB in the end (delta: 27.3MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. [2022-11-25 18:16:21,946 INFO L158 Benchmark]: Boogie Procedure Inliner took 122.45ms. Allocated memory is still 180.4MB. Free memory was 121.5MB in the beginning and 118.9MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-25 18:16:21,947 INFO L158 Benchmark]: Boogie Preprocessor took 95.70ms. Allocated memory is still 180.4MB. Free memory was 118.9MB in the beginning and 116.4MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-25 18:16:21,947 INFO L158 Benchmark]: RCFGBuilder took 1662.22ms. Allocated memory is still 180.4MB. Free memory was 116.4MB in the beginning and 126.9MB in the end (delta: -10.5MB). Peak memory consumption was 50.3MB. Max. memory is 16.1GB. [2022-11-25 18:16:21,947 INFO L158 Benchmark]: TraceAbstraction took 22798.59ms. Allocated memory was 180.4MB in the beginning and 293.6MB in the end (delta: 113.2MB). Free memory was 125.7MB in the beginning and 90.5MB in the end (delta: 35.2MB). Peak memory consumption was 149.3MB. Max. memory is 16.1GB. [2022-11-25 18:16:21,948 INFO L158 Benchmark]: Witness Printer took 118.30ms. Allocated memory is still 293.6MB. Free memory was 90.5MB in the beginning and 253.8MB in the end (delta: -163.3MB). Peak memory consumption was 5.5MB. Max. memory is 16.1GB. [2022-11-25 18:16:21,950 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.41ms. Allocated memory is still 117.4MB. Free memory is still 71.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 963.88ms. Allocated memory is still 180.4MB. Free memory was 148.7MB in the beginning and 121.5MB in the end (delta: 27.3MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 122.45ms. Allocated memory is still 180.4MB. Free memory was 121.5MB in the beginning and 118.9MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 95.70ms. Allocated memory is still 180.4MB. Free memory was 118.9MB in the beginning and 116.4MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 1662.22ms. Allocated memory is still 180.4MB. Free memory was 116.4MB in the beginning and 126.9MB in the end (delta: -10.5MB). Peak memory consumption was 50.3MB. Max. memory is 16.1GB. * TraceAbstraction took 22798.59ms. Allocated memory was 180.4MB in the beginning and 293.6MB in the end (delta: 113.2MB). Free memory was 125.7MB in the beginning and 90.5MB in the end (delta: 35.2MB). Peak memory consumption was 149.3MB. Max. memory is 16.1GB. * Witness Printer took 118.30ms. Allocated memory is still 293.6MB. Free memory was 90.5MB in the beginning and 253.8MB in the end (delta: -163.3MB). Peak memory consumption was 5.5MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 19.8s, 140 PlacesBefore, 35 PlacesAfterwards, 132 TransitionsBefore, 26 TransitionsAfterwards, 2366 CoEnabledTransitionPairs, 8 FixpointIterations, 59 TrivialSequentialCompositions, 52 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 9 ConcurrentYvCompositions, 1 ChoiceCompositions, 121 TotalNumberOfCompositions, 7913 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 3005, independent: 2729, independent conditional: 0, independent unconditional: 2729, dependent: 276, dependent conditional: 0, dependent unconditional: 276, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1727, independent: 1667, independent conditional: 0, independent unconditional: 1667, dependent: 60, dependent conditional: 0, dependent unconditional: 60, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1727, independent: 1618, independent conditional: 0, independent unconditional: 1618, dependent: 109, dependent conditional: 0, dependent unconditional: 109, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 109, independent: 49, independent conditional: 0, independent unconditional: 49, dependent: 60, dependent conditional: 0, dependent unconditional: 60, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 1262, independent: 133, independent conditional: 0, independent unconditional: 133, dependent: 1129, dependent conditional: 0, dependent unconditional: 1129, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 3005, independent: 1062, independent conditional: 0, independent unconditional: 1062, dependent: 216, dependent conditional: 0, dependent unconditional: 216, unknown: 1727, unknown conditional: 0, unknown unconditional: 1727] , Statistics on independence cache: Total cache size (in pairs): 141, Positive cache size: 118, Positive conditional cache size: 0, Positive unconditional cache size: 118, Negative cache size: 23, Negative conditional cache size: 0, Negative unconditional cache size: 23, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 782]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 782]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 802]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 802]: 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, 165 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: 22.6s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 20.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 138 SdHoareTripleChecker+Valid, 0.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 115 mSDsluCounter, 10 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 40 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 232 IncrementalHoareTripleChecker+Invalid, 272 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 40 mSolverCounterUnsat, 10 mSDtfsCounter, 232 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=105occurred 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, 0.6s InterpolantComputationTime, 41 NumberOfCodeBlocks, 41 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 37 ConstructedInterpolants, 0 QuantifiedInterpolants, 111 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! [2022-11-25 18:16:21,987 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_017e1503-6c36-453c-af10-030c4c3f06f0/bin/uautomizer-ZsLfNo2U6R/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