./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/pthread-wmm/thin002_power.opt.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 38b53e6a 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_3f84498d-3c62-4ebb-963c-639fe93f5344/bin/uautomizer-ZsLfNo2U6R/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f84498d-3c62-4ebb-963c-639fe93f5344/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_3f84498d-3c62-4ebb-963c-639fe93f5344/bin/uautomizer-ZsLfNo2U6R/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f84498d-3c62-4ebb-963c-639fe93f5344/bin/uautomizer-ZsLfNo2U6R/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-wmm/thin002_power.opt.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f84498d-3c62-4ebb-963c-639fe93f5344/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_3f84498d-3c62-4ebb-963c-639fe93f5344/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 e1655ef15816414a510c3a8c6c5388872fb389e863c7015deef825935bc10ec6 --- 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 16:52:55,899 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-25 16:52:55,901 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-25 16:52:55,943 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-25 16:52:55,944 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-25 16:52:55,945 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-25 16:52:55,946 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-25 16:52:55,948 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-25 16:52:55,950 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-25 16:52:55,951 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-25 16:52:55,952 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-25 16:52:55,953 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-25 16:52:55,954 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-25 16:52:55,955 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-25 16:52:55,956 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-25 16:52:55,958 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-25 16:52:55,959 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-25 16:52:55,960 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-25 16:52:55,962 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-25 16:52:55,981 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-25 16:52:55,982 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-25 16:52:55,984 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-25 16:52:55,985 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-25 16:52:55,986 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-25 16:52:55,990 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-25 16:52:55,990 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-25 16:52:55,990 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-25 16:52:55,992 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-25 16:52:55,992 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-25 16:52:55,993 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-25 16:52:55,994 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-25 16:52:55,995 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-25 16:52:55,996 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-25 16:52:55,996 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-25 16:52:55,997 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-25 16:52:55,998 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-25 16:52:55,999 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-25 16:52:55,999 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-25 16:52:55,999 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-25 16:52:56,000 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-25 16:52:56,001 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-25 16:52:56,002 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f84498d-3c62-4ebb-963c-639fe93f5344/bin/uautomizer-ZsLfNo2U6R/config/svcomp-Overflow-32bit-Automizer_Default.epf [2022-11-25 16:52:56,023 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-25 16:52:56,024 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-25 16:52:56,024 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-25 16:52:56,024 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-25 16:52:56,025 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-25 16:52:56,026 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-25 16:52:56,026 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-25 16:52:56,027 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-25 16:52:56,027 INFO L138 SettingsManager]: * Use SBE=true [2022-11-25 16:52:56,027 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-25 16:52:56,027 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-25 16:52:56,028 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-25 16:52:56,028 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-25 16:52:56,028 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-25 16:52:56,028 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-25 16:52:56,029 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-25 16:52:56,029 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-25 16:52:56,029 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-25 16:52:56,030 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-25 16:52:56,030 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-25 16:52:56,030 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-25 16:52:56,030 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-25 16:52:56,031 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-25 16:52:56,031 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-25 16:52:56,031 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-25 16:52:56,031 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-25 16:52:56,032 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 16:52:56,032 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-25 16:52:56,032 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-25 16:52:56,033 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-25 16:52:56,033 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-25 16:52:56,033 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-25 16:52:56,033 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-25 16:52:56,034 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-25 16:52:56,034 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-11-25 16:52:56,034 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-25 16:52:56,034 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_3f84498d-3c62-4ebb-963c-639fe93f5344/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f84498d-3c62-4ebb-963c-639fe93f5344/bin/uautomizer-ZsLfNo2U6R Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e1655ef15816414a510c3a8c6c5388872fb389e863c7015deef825935bc10ec6 [2022-11-25 16:52:56,309 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-25 16:52:56,330 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-25 16:52:56,332 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-25 16:52:56,334 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-25 16:52:56,334 INFO L275 PluginConnector]: CDTParser initialized [2022-11-25 16:52:56,335 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f84498d-3c62-4ebb-963c-639fe93f5344/bin/uautomizer-ZsLfNo2U6R/../../sv-benchmarks/c/pthread-wmm/thin002_power.opt.i [2022-11-25 16:52:59,297 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-25 16:52:59,614 INFO L351 CDTParser]: Found 1 translation units. [2022-11-25 16:52:59,621 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f84498d-3c62-4ebb-963c-639fe93f5344/sv-benchmarks/c/pthread-wmm/thin002_power.opt.i [2022-11-25 16:52:59,641 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f84498d-3c62-4ebb-963c-639fe93f5344/bin/uautomizer-ZsLfNo2U6R/data/152fefe95/779c6cb02aea4faa878a70da1dfce185/FLAG0739af245 [2022-11-25 16:52:59,661 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f84498d-3c62-4ebb-963c-639fe93f5344/bin/uautomizer-ZsLfNo2U6R/data/152fefe95/779c6cb02aea4faa878a70da1dfce185 [2022-11-25 16:52:59,666 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-25 16:52:59,669 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-25 16:52:59,674 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-25 16:52:59,674 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-25 16:52:59,678 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-25 16:52:59,679 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 04:52:59" (1/1) ... [2022-11-25 16:52:59,680 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@12378d52 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:52:59, skipping insertion in model container [2022-11-25 16:52:59,680 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 04:52:59" (1/1) ... [2022-11-25 16:52:59,688 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-25 16:52:59,747 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-25 16:52:59,968 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_3f84498d-3c62-4ebb-963c-639fe93f5344/sv-benchmarks/c/pthread-wmm/thin002_power.opt.i[951,964] [2022-11-25 16:53:00,190 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 16:53:00,192 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 16:53:00,192 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 16:53:00,193 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 16:53:00,193 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 16:53:00,193 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 16:53:00,193 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 16:53:00,196 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 16:53:00,197 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 16:53:00,197 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 16:53:00,198 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 16:53:00,198 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 16:53:00,199 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 16:53:00,199 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 16:53:00,199 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 16:53:00,200 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 16:53:00,200 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 16:53:00,201 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 16:53:00,202 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 16:53:00,205 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 16:53:00,206 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 16:53:00,208 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 16:53:00,208 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 16:53:00,208 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 16:53:00,209 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 16:53:00,225 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 16:53:00,225 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 16:53:00,225 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 16:53:00,226 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 16:53:00,228 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 16:53:00,229 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 16:53:00,229 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 16:53:00,235 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 16:53:00,236 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 16:53:00,236 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 16:53:00,239 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 16:53:00,239 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 16:53:00,241 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 16:53:00,242 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 16:53:00,253 INFO L203 MainTranslator]: Completed pre-run [2022-11-25 16:53:00,264 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_3f84498d-3c62-4ebb-963c-639fe93f5344/sv-benchmarks/c/pthread-wmm/thin002_power.opt.i[951,964] [2022-11-25 16:53:00,284 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 16:53:00,285 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 16:53:00,285 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 16:53:00,285 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 16:53:00,286 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 16:53:00,286 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 16:53:00,286 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 16:53:00,287 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 16:53:00,287 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 16:53:00,287 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 16:53:00,288 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 16:53:00,288 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 16:53:00,288 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 16:53:00,289 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 16:53:00,289 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 16:53:00,289 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 16:53:00,290 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 16:53:00,290 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 16:53:00,290 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 16:53:00,292 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 16:53:00,292 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 16:53:00,295 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 16:53:00,295 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 16:53:00,295 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 16:53:00,296 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 16:53:00,309 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 16:53:00,309 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 16:53:00,309 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 16:53:00,310 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 16:53:00,312 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 16:53:00,312 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 16:53:00,313 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 16:53:00,317 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 16:53:00,317 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 16:53:00,318 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 16:53:00,320 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 16:53:00,321 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 16:53:00,322 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 16:53:00,323 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 16:53:00,360 INFO L208 MainTranslator]: Completed translation [2022-11-25 16:53:00,360 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:53:00 WrapperNode [2022-11-25 16:53:00,360 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-25 16:53:00,362 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-25 16:53:00,362 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-25 16:53:00,362 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-25 16:53:00,370 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:53:00" (1/1) ... [2022-11-25 16:53:00,422 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:53:00" (1/1) ... [2022-11-25 16:53:00,449 INFO L138 Inliner]: procedures = 177, calls = 84, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 201 [2022-11-25 16:53:00,449 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-25 16:53:00,450 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-25 16:53:00,450 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-25 16:53:00,450 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-25 16:53:00,460 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:53:00" (1/1) ... [2022-11-25 16:53:00,466 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:53:00" (1/1) ... [2022-11-25 16:53:00,471 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:53:00" (1/1) ... [2022-11-25 16:53:00,476 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:53:00" (1/1) ... [2022-11-25 16:53:00,484 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:53:00" (1/1) ... [2022-11-25 16:53:00,487 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:53:00" (1/1) ... [2022-11-25 16:53:00,490 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:53:00" (1/1) ... [2022-11-25 16:53:00,492 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:53:00" (1/1) ... [2022-11-25 16:53:00,501 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-25 16:53:00,503 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-25 16:53:00,506 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-25 16:53:00,506 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-25 16:53:00,507 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:53:00" (1/1) ... [2022-11-25 16:53:00,524 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 16:53:00,541 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f84498d-3c62-4ebb-963c-639fe93f5344/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 16:53:00,565 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f84498d-3c62-4ebb-963c-639fe93f5344/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-25 16:53:00,595 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f84498d-3c62-4ebb-963c-639fe93f5344/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-25 16:53:00,617 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-25 16:53:00,617 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-25 16:53:00,617 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-11-25 16:53:00,618 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-25 16:53:00,619 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-25 16:53:00,619 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-25 16:53:00,619 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2022-11-25 16:53:00,619 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2022-11-25 16:53:00,619 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2022-11-25 16:53:00,619 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2022-11-25 16:53:00,620 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2022-11-25 16:53:00,620 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2022-11-25 16:53:00,620 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2022-11-25 16:53:00,620 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2022-11-25 16:53:00,620 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-25 16:53:00,622 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-11-25 16:53:00,622 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-25 16:53:00,622 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-25 16:53:00,624 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 16:53:00,853 INFO L235 CfgBuilder]: Building ICFG [2022-11-25 16:53:00,855 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-25 16:53:01,384 INFO L276 CfgBuilder]: Performing block encoding [2022-11-25 16:53:01,822 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-25 16:53:01,822 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-25 16:53:01,825 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 04:53:01 BoogieIcfgContainer [2022-11-25 16:53:01,825 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-25 16:53:01,828 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-25 16:53:01,828 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-25 16:53:01,831 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-25 16:53:01,831 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 04:52:59" (1/3) ... [2022-11-25 16:53:01,832 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@37c140b9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 04:53:01, skipping insertion in model container [2022-11-25 16:53:01,832 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:53:00" (2/3) ... [2022-11-25 16:53:01,834 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@37c140b9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 04:53:01, skipping insertion in model container [2022-11-25 16:53:01,835 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 04:53:01" (3/3) ... [2022-11-25 16:53:01,838 INFO L112 eAbstractionObserver]: Analyzing ICFG thin002_power.opt.i [2022-11-25 16:53:01,849 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-25 16:53:01,860 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-25 16:53:01,863 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2022-11-25 16:53:01,864 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-25 16:53:01,970 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-11-25 16:53:02,031 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 173 places, 162 transitions, 344 flow [2022-11-25 16:53:02,111 INFO L130 PetriNetUnfolder]: 2/158 cut-off events. [2022-11-25 16:53:02,111 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-25 16:53:02,117 INFO L83 FinitePrefix]: Finished finitePrefix Result has 171 conditions, 158 events. 2/158 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 86 event pairs, 0 based on Foata normal form. 0/148 useless extension candidates. Maximal degree in co-relation 95. Up to 2 conditions per place. [2022-11-25 16:53:02,117 INFO L82 GeneralOperation]: Start removeDead. Operand has 173 places, 162 transitions, 344 flow [2022-11-25 16:53:02,122 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 169 places, 158 transitions, 328 flow [2022-11-25 16:53:02,126 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-25 16:53:02,141 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 169 places, 158 transitions, 328 flow [2022-11-25 16:53:02,143 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 169 places, 158 transitions, 328 flow [2022-11-25 16:53:02,144 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 169 places, 158 transitions, 328 flow [2022-11-25 16:53:02,182 INFO L130 PetriNetUnfolder]: 2/158 cut-off events. [2022-11-25 16:53:02,182 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-25 16:53:02,183 INFO L83 FinitePrefix]: Finished finitePrefix Result has 171 conditions, 158 events. 2/158 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 86 event pairs, 0 based on Foata normal form. 0/148 useless extension candidates. Maximal degree in co-relation 95. Up to 2 conditions per place. [2022-11-25 16:53:02,186 INFO L119 LiptonReduction]: Number of co-enabled transitions 3864 [2022-11-25 16:53:15,274 INFO L134 LiptonReduction]: Checked pairs total: 12863 [2022-11-25 16:53:15,275 INFO L136 LiptonReduction]: Total number of compositions: 139 [2022-11-25 16:53:15,294 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-25 16:53:15,301 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;@31b424aa, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-25 16:53:15,301 INFO L358 AbstractCegarLoop]: Starting to check reachability of 20 error locations. [2022-11-25 16:53:15,305 INFO L130 PetriNetUnfolder]: 0/5 cut-off events. [2022-11-25 16:53:15,306 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-25 16:53:15,306 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 16:53:15,307 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2022-11-25 16:53:15,307 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2022-11-25 16:53:15,312 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 16:53:15,313 INFO L85 PathProgramCache]: Analyzing trace with hash 28119566, now seen corresponding path program 1 times [2022-11-25 16:53:15,323 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 16:53:15,324 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [815800543] [2022-11-25 16:53:15,324 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:53:15,325 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 16:53:15,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:53:15,652 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 16:53:15,652 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 16:53:15,653 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [815800543] [2022-11-25 16:53:15,654 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [815800543] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 16:53:15,654 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 16:53:15,654 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-25 16:53:15,656 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [324724918] [2022-11-25 16:53:15,656 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 16:53:15,665 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 16:53:15,665 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 16:53:15,686 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 16:53:15,688 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 16:53:15,714 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 136 out of 301 [2022-11-25 16:53:15,718 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 46 places, 33 transitions, 78 flow. Second operand has 3 states, 3 states have (on average 137.33333333333334) internal successors, (412), 3 states have internal predecessors, (412), 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 16:53:15,721 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 16:53:15,721 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 136 of 301 [2022-11-25 16:53:15,723 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 16:53:18,012 INFO L130 PetriNetUnfolder]: 6707/9418 cut-off events. [2022-11-25 16:53:18,012 INFO L131 PetriNetUnfolder]: For 102/102 co-relation queries the response was YES. [2022-11-25 16:53:18,039 INFO L83 FinitePrefix]: Finished finitePrefix Result has 19050 conditions, 9418 events. 6707/9418 cut-off events. For 102/102 co-relation queries the response was YES. Maximal size of possible extension queue 610. Compared 52677 event pairs, 1877 based on Foata normal form. 234/7637 useless extension candidates. Maximal degree in co-relation 19038. Up to 8683 conditions per place. [2022-11-25 16:53:18,095 INFO L137 encePairwiseOnDemand]: 288/301 looper letters, 45 selfloop transitions, 5 changer transitions 0/53 dead transitions. [2022-11-25 16:53:18,096 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 48 places, 53 transitions, 227 flow [2022-11-25 16:53:18,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 16:53:18,099 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-25 16:53:18,113 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 466 transitions. [2022-11-25 16:53:18,118 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5160575858250277 [2022-11-25 16:53:18,119 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 466 transitions. [2022-11-25 16:53:18,119 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 466 transitions. [2022-11-25 16:53:18,124 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 16:53:18,127 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 466 transitions. [2022-11-25 16:53:18,133 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 155.33333333333334) internal successors, (466), 3 states have internal predecessors, (466), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:53:18,138 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 301.0) internal successors, (1204), 4 states have internal predecessors, (1204), 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 16:53:18,139 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 301.0) internal successors, (1204), 4 states have internal predecessors, (1204), 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 16:53:18,140 INFO L175 Difference]: Start difference. First operand has 46 places, 33 transitions, 78 flow. Second operand 3 states and 466 transitions. [2022-11-25 16:53:18,142 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 48 places, 53 transitions, 227 flow [2022-11-25 16:53:18,145 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 44 places, 53 transitions, 220 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-11-25 16:53:18,147 INFO L231 Difference]: Finished difference. Result has 45 places, 37 transitions, 121 flow [2022-11-25 16:53:18,149 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=301, PETRI_DIFFERENCE_MINUEND_FLOW=74, PETRI_DIFFERENCE_MINUEND_PLACES=42, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=33, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=28, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=121, PETRI_PLACES=45, PETRI_TRANSITIONS=37} [2022-11-25 16:53:18,157 INFO L288 CegarLoopForPetriNet]: 46 programPoint places, -1 predicate places. [2022-11-25 16:53:18,158 INFO L495 AbstractCegarLoop]: Abstraction has has 45 places, 37 transitions, 121 flow [2022-11-25 16:53:18,158 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 137.33333333333334) internal successors, (412), 3 states have internal predecessors, (412), 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 16:53:18,159 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 16:53:18,159 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 16:53:18,159 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-25 16:53:18,159 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2022-11-25 16:53:18,160 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 16:53:18,160 INFO L85 PathProgramCache]: Analyzing trace with hash -126142123, now seen corresponding path program 1 times [2022-11-25 16:53:18,161 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 16:53:18,161 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1525398990] [2022-11-25 16:53:18,161 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:53:18,161 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 16:53:18,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:53:18,259 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 16:53:18,259 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 16:53:18,259 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1525398990] [2022-11-25 16:53:18,260 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1525398990] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 16:53:18,260 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 16:53:18,260 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-25 16:53:18,260 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1773721569] [2022-11-25 16:53:18,261 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 16:53:18,262 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-25 16:53:18,262 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 16:53:18,262 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-25 16:53:18,263 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-25 16:53:18,273 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 136 out of 301 [2022-11-25 16:53:18,274 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 45 places, 37 transitions, 121 flow. Second operand has 4 states, 4 states have (on average 138.0) internal successors, (552), 4 states have internal predecessors, (552), 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 16:53:18,274 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 16:53:18,274 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 136 of 301 [2022-11-25 16:53:18,274 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 16:53:19,577 INFO L130 PetriNetUnfolder]: 3863/5434 cut-off events. [2022-11-25 16:53:19,578 INFO L131 PetriNetUnfolder]: For 310/310 co-relation queries the response was YES. [2022-11-25 16:53:19,590 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13557 conditions, 5434 events. 3863/5434 cut-off events. For 310/310 co-relation queries the response was YES. Maximal size of possible extension queue 305. Compared 27480 event pairs, 925 based on Foata normal form. 914/5415 useless extension candidates. Maximal degree in co-relation 13546. Up to 4698 conditions per place. [2022-11-25 16:53:19,621 INFO L137 encePairwiseOnDemand]: 292/301 looper letters, 41 selfloop transitions, 5 changer transitions 0/49 dead transitions. [2022-11-25 16:53:19,622 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 44 places, 49 transitions, 235 flow [2022-11-25 16:53:19,622 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-25 16:53:19,623 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-11-25 16:53:19,624 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 594 transitions. [2022-11-25 16:53:19,625 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.49335548172757476 [2022-11-25 16:53:19,625 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 594 transitions. [2022-11-25 16:53:19,626 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 594 transitions. [2022-11-25 16:53:19,626 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 16:53:19,626 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 594 transitions. [2022-11-25 16:53:19,628 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 148.5) internal successors, (594), 4 states have internal predecessors, (594), 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 16:53:19,632 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 301.0) internal successors, (1505), 5 states have internal predecessors, (1505), 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 16:53:19,633 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 301.0) internal successors, (1505), 5 states have internal predecessors, (1505), 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 16:53:19,634 INFO L175 Difference]: Start difference. First operand has 45 places, 37 transitions, 121 flow. Second operand 4 states and 594 transitions. [2022-11-25 16:53:19,634 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 44 places, 49 transitions, 235 flow [2022-11-25 16:53:19,635 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 43 places, 49 transitions, 230 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-25 16:53:19,637 INFO L231 Difference]: Finished difference. Result has 43 places, 33 transitions, 110 flow [2022-11-25 16:53:19,637 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=301, PETRI_DIFFERENCE_MINUEND_FLOW=100, PETRI_DIFFERENCE_MINUEND_PLACES=40, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=33, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=28, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=110, PETRI_PLACES=43, PETRI_TRANSITIONS=33} [2022-11-25 16:53:19,638 INFO L288 CegarLoopForPetriNet]: 46 programPoint places, -3 predicate places. [2022-11-25 16:53:19,638 INFO L495 AbstractCegarLoop]: Abstraction has has 43 places, 33 transitions, 110 flow [2022-11-25 16:53:19,639 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 138.0) internal successors, (552), 4 states have internal predecessors, (552), 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 16:53:19,639 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 16:53:19,639 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 16:53:19,640 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-25 16:53:19,640 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2022-11-25 16:53:19,640 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 16:53:19,641 INFO L85 PathProgramCache]: Analyzing trace with hash 384560219, now seen corresponding path program 1 times [2022-11-25 16:53:19,641 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 16:53:19,641 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1773670404] [2022-11-25 16:53:19,642 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:53:19,642 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 16:53:19,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:53:19,748 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 16:53:19,748 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 16:53:19,748 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1773670404] [2022-11-25 16:53:19,749 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1773670404] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 16:53:19,749 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 16:53:19,749 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-25 16:53:19,749 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [932938501] [2022-11-25 16:53:19,750 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 16:53:19,750 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-25 16:53:19,750 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 16:53:19,751 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-25 16:53:19,753 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-25 16:53:19,772 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 136 out of 301 [2022-11-25 16:53:19,773 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 43 places, 33 transitions, 110 flow. Second operand has 4 states, 4 states have (on average 138.0) internal successors, (552), 4 states have internal predecessors, (552), 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 16:53:19,773 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 16:53:19,774 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 136 of 301 [2022-11-25 16:53:19,774 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 16:53:20,707 INFO L130 PetriNetUnfolder]: 2408/3437 cut-off events. [2022-11-25 16:53:20,707 INFO L131 PetriNetUnfolder]: For 974/974 co-relation queries the response was YES. [2022-11-25 16:53:20,716 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8486 conditions, 3437 events. 2408/3437 cut-off events. For 974/974 co-relation queries the response was YES. Maximal size of possible extension queue 174. Compared 15948 event pairs, 527 based on Foata normal form. 0/3216 useless extension candidates. Maximal degree in co-relation 8474. Up to 1458 conditions per place. [2022-11-25 16:53:20,729 INFO L137 encePairwiseOnDemand]: 292/301 looper letters, 55 selfloop transitions, 9 changer transitions 0/67 dead transitions. [2022-11-25 16:53:20,730 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 46 places, 67 transitions, 324 flow [2022-11-25 16:53:20,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-25 16:53:20,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-11-25 16:53:20,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 612 transitions. [2022-11-25 16:53:20,732 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5083056478405316 [2022-11-25 16:53:20,733 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 612 transitions. [2022-11-25 16:53:20,733 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 612 transitions. [2022-11-25 16:53:20,733 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 16:53:20,734 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 612 transitions. [2022-11-25 16:53:20,735 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 153.0) internal successors, (612), 4 states have internal predecessors, (612), 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 16:53:20,737 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 301.0) internal successors, (1505), 5 states have internal predecessors, (1505), 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 16:53:20,738 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 301.0) internal successors, (1505), 5 states have internal predecessors, (1505), 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 16:53:20,738 INFO L175 Difference]: Start difference. First operand has 43 places, 33 transitions, 110 flow. Second operand 4 states and 612 transitions. [2022-11-25 16:53:20,739 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 46 places, 67 transitions, 324 flow [2022-11-25 16:53:20,742 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 44 places, 67 transitions, 318 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-25 16:53:20,743 INFO L231 Difference]: Finished difference. Result has 45 places, 37 transitions, 162 flow [2022-11-25 16:53:20,743 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=301, PETRI_DIFFERENCE_MINUEND_FLOW=104, PETRI_DIFFERENCE_MINUEND_PLACES=41, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=33, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=24, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=162, PETRI_PLACES=45, PETRI_TRANSITIONS=37} [2022-11-25 16:53:20,744 INFO L288 CegarLoopForPetriNet]: 46 programPoint places, -1 predicate places. [2022-11-25 16:53:20,744 INFO L495 AbstractCegarLoop]: Abstraction has has 45 places, 37 transitions, 162 flow [2022-11-25 16:53:20,745 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 138.0) internal successors, (552), 4 states have internal predecessors, (552), 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 16:53:20,745 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 16:53:20,745 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 16:53:20,745 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-25 16:53:20,746 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2022-11-25 16:53:20,746 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 16:53:20,746 INFO L85 PathProgramCache]: Analyzing trace with hash -1886085938, now seen corresponding path program 1 times [2022-11-25 16:53:20,746 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 16:53:20,747 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [543296667] [2022-11-25 16:53:20,747 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:53:20,747 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 16:53:20,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:53:20,861 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 16:53:20,861 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 16:53:20,862 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [543296667] [2022-11-25 16:53:20,862 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [543296667] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 16:53:20,862 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 16:53:20,862 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 16:53:20,863 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1630859319] [2022-11-25 16:53:20,863 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 16:53:20,863 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-25 16:53:20,863 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 16:53:20,864 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-25 16:53:20,864 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-11-25 16:53:20,874 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 136 out of 301 [2022-11-25 16:53:20,875 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 45 places, 37 transitions, 162 flow. Second operand has 5 states, 5 states have (on average 138.8) internal successors, (694), 5 states have internal predecessors, (694), 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 16:53:20,875 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 16:53:20,875 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 136 of 301 [2022-11-25 16:53:20,876 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 16:53:21,564 INFO L130 PetriNetUnfolder]: 2129/2996 cut-off events. [2022-11-25 16:53:21,565 INFO L131 PetriNetUnfolder]: For 1992/1992 co-relation queries the response was YES. [2022-11-25 16:53:21,573 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8665 conditions, 2996 events. 2129/2996 cut-off events. For 1992/1992 co-relation queries the response was YES. Maximal size of possible extension queue 169. Compared 13356 event pairs, 483 based on Foata normal form. 0/2961 useless extension candidates. Maximal degree in co-relation 8652. Up to 1244 conditions per place. [2022-11-25 16:53:21,585 INFO L137 encePairwiseOnDemand]: 292/301 looper letters, 63 selfloop transitions, 13 changer transitions 4/83 dead transitions. [2022-11-25 16:53:21,586 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 49 places, 83 transitions, 442 flow [2022-11-25 16:53:21,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-25 16:53:21,586 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-11-25 16:53:21,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 764 transitions. [2022-11-25 16:53:21,589 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.507641196013289 [2022-11-25 16:53:21,589 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 764 transitions. [2022-11-25 16:53:21,589 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 764 transitions. [2022-11-25 16:53:21,590 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 16:53:21,590 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 764 transitions. [2022-11-25 16:53:21,592 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 152.8) internal successors, (764), 5 states have internal predecessors, (764), 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 16:53:21,595 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 301.0) internal successors, (1806), 6 states have internal predecessors, (1806), 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 16:53:21,596 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 301.0) internal successors, (1806), 6 states have internal predecessors, (1806), 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 16:53:21,596 INFO L175 Difference]: Start difference. First operand has 45 places, 37 transitions, 162 flow. Second operand 5 states and 764 transitions. [2022-11-25 16:53:21,597 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 49 places, 83 transitions, 442 flow [2022-11-25 16:53:21,601 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 47 places, 83 transitions, 424 flow, removed 4 selfloop flow, removed 2 redundant places. [2022-11-25 16:53:21,602 INFO L231 Difference]: Finished difference. Result has 48 places, 37 transitions, 186 flow [2022-11-25 16:53:21,603 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=301, PETRI_DIFFERENCE_MINUEND_FLOW=144, PETRI_DIFFERENCE_MINUEND_PLACES=43, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=37, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=24, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=186, PETRI_PLACES=48, PETRI_TRANSITIONS=37} [2022-11-25 16:53:21,603 INFO L288 CegarLoopForPetriNet]: 46 programPoint places, 2 predicate places. [2022-11-25 16:53:21,604 INFO L495 AbstractCegarLoop]: Abstraction has has 48 places, 37 transitions, 186 flow [2022-11-25 16:53:21,604 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 138.8) internal successors, (694), 5 states have internal predecessors, (694), 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 16:53:21,604 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 16:53:21,605 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 16:53:21,605 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-25 16:53:21,605 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting P3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2022-11-25 16:53:21,605 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 16:53:21,606 INFO L85 PathProgramCache]: Analyzing trace with hash -204535813, now seen corresponding path program 1 times [2022-11-25 16:53:21,606 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 16:53:21,606 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1506355331] [2022-11-25 16:53:21,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:53:21,607 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 16:53:21,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:53:21,811 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 16:53:21,811 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 16:53:21,812 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1506355331] [2022-11-25 16:53:21,812 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1506355331] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 16:53:21,812 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 16:53:21,812 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-25 16:53:21,813 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1285291020] [2022-11-25 16:53:21,813 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 16:53:21,814 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-25 16:53:21,814 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 16:53:21,815 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-25 16:53:21,815 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-25 16:53:21,826 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 136 out of 301 [2022-11-25 16:53:21,828 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 48 places, 37 transitions, 186 flow. Second operand has 6 states, 6 states have (on average 139.16666666666666) internal successors, (835), 6 states have internal predecessors, (835), 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 16:53:21,828 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 16:53:21,828 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 136 of 301 [2022-11-25 16:53:21,828 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 16:53:22,514 INFO L130 PetriNetUnfolder]: 2102/2949 cut-off events. [2022-11-25 16:53:22,514 INFO L131 PetriNetUnfolder]: For 2518/2518 co-relation queries the response was YES. [2022-11-25 16:53:22,523 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8750 conditions, 2949 events. 2102/2949 cut-off events. For 2518/2518 co-relation queries the response was YES. Maximal size of possible extension queue 169. Compared 13198 event pairs, 483 based on Foata normal form. 16/2946 useless extension candidates. Maximal degree in co-relation 8736. Up to 1244 conditions per place. [2022-11-25 16:53:22,526 INFO L137 encePairwiseOnDemand]: 292/301 looper letters, 0 selfloop transitions, 0 changer transitions 75/75 dead transitions. [2022-11-25 16:53:22,527 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 49 places, 75 transitions, 394 flow [2022-11-25 16:53:22,527 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-25 16:53:22,527 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-25 16:53:22,529 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 892 transitions. [2022-11-25 16:53:22,530 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4939091915836102 [2022-11-25 16:53:22,530 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 892 transitions. [2022-11-25 16:53:22,530 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 892 transitions. [2022-11-25 16:53:22,531 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 16:53:22,531 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 892 transitions. [2022-11-25 16:53:22,534 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 148.66666666666666) internal successors, (892), 6 states have internal predecessors, (892), 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 16:53:22,537 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 301.0) internal successors, (2107), 7 states have internal predecessors, (2107), 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 16:53:22,538 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 301.0) internal successors, (2107), 7 states have internal predecessors, (2107), 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 16:53:22,538 INFO L175 Difference]: Start difference. First operand has 48 places, 37 transitions, 186 flow. Second operand 6 states and 892 transitions. [2022-11-25 16:53:22,539 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 49 places, 75 transitions, 394 flow [2022-11-25 16:53:22,582 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 43 places, 75 transitions, 339 flow, removed 8 selfloop flow, removed 6 redundant places. [2022-11-25 16:53:22,583 INFO L231 Difference]: Finished difference. Result has 43 places, 0 transitions, 0 flow [2022-11-25 16:53:22,583 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=301, PETRI_DIFFERENCE_MINUEND_FLOW=99, PETRI_DIFFERENCE_MINUEND_PLACES=38, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=33, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=33, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=0, PETRI_PLACES=43, PETRI_TRANSITIONS=0} [2022-11-25 16:53:22,584 INFO L288 CegarLoopForPetriNet]: 46 programPoint places, -3 predicate places. [2022-11-25 16:53:22,584 INFO L495 AbstractCegarLoop]: Abstraction has has 43 places, 0 transitions, 0 flow [2022-11-25 16:53:22,585 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 139.16666666666666) internal successors, (835), 6 states have internal predecessors, (835), 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 16:53:22,587 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 20 remaining) [2022-11-25 16:53:22,588 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 20 remaining) [2022-11-25 16:53:22,588 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 20 remaining) [2022-11-25 16:53:22,589 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 20 remaining) [2022-11-25 16:53:22,589 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 20 remaining) [2022-11-25 16:53:22,589 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 20 remaining) [2022-11-25 16:53:22,589 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 20 remaining) [2022-11-25 16:53:22,590 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 20 remaining) [2022-11-25 16:53:22,590 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (11 of 20 remaining) [2022-11-25 16:53:22,590 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (10 of 20 remaining) [2022-11-25 16:53:22,590 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (9 of 20 remaining) [2022-11-25 16:53:22,591 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 20 remaining) [2022-11-25 16:53:22,591 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 20 remaining) [2022-11-25 16:53:22,591 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 20 remaining) [2022-11-25 16:53:22,591 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 20 remaining) [2022-11-25 16:53:22,592 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 20 remaining) [2022-11-25 16:53:22,592 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 20 remaining) [2022-11-25 16:53:22,592 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 20 remaining) [2022-11-25 16:53:22,592 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 20 remaining) [2022-11-25 16:53:22,592 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 20 remaining) [2022-11-25 16:53:22,593 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-25 16:53:22,593 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2022-11-25 16:53:22,598 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-25 16:53:22,599 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-25 16:53:22,602 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.11 04:53:22 BasicIcfg [2022-11-25 16:53:22,603 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-25 16:53:22,603 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-25 16:53:22,603 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-25 16:53:22,603 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-25 16:53:22,604 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 04:53:01" (3/4) ... [2022-11-25 16:53:22,607 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-25 16:53:22,612 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2022-11-25 16:53:22,612 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2022-11-25 16:53:22,612 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2022-11-25 16:53:22,613 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P3 [2022-11-25 16:53:22,618 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 39 nodes and edges [2022-11-25 16:53:22,618 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2022-11-25 16:53:22,619 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2022-11-25 16:53:22,619 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-25 16:53:22,660 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f84498d-3c62-4ebb-963c-639fe93f5344/bin/uautomizer-ZsLfNo2U6R/witness.graphml [2022-11-25 16:53:22,661 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-25 16:53:22,661 INFO L158 Benchmark]: Toolchain (without parser) took 22992.69ms. Allocated memory was 188.7MB in the beginning and 601.9MB in the end (delta: 413.1MB). Free memory was 156.6MB in the beginning and 155.2MB in the end (delta: 1.5MB). Peak memory consumption was 414.6MB. Max. memory is 16.1GB. [2022-11-25 16:53:22,662 INFO L158 Benchmark]: CDTParser took 0.27ms. Allocated memory is still 130.0MB. Free memory is still 100.0MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 16:53:22,662 INFO L158 Benchmark]: CACSL2BoogieTranslator took 686.77ms. Allocated memory is still 188.7MB. Free memory was 155.7MB in the beginning and 139.3MB in the end (delta: 16.4MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-11-25 16:53:22,662 INFO L158 Benchmark]: Boogie Procedure Inliner took 87.63ms. Allocated memory is still 188.7MB. Free memory was 139.3MB in the beginning and 137.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-25 16:53:22,663 INFO L158 Benchmark]: Boogie Preprocessor took 52.07ms. Allocated memory is still 188.7MB. Free memory was 137.2MB in the beginning and 135.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-25 16:53:22,663 INFO L158 Benchmark]: RCFGBuilder took 1322.55ms. Allocated memory is still 188.7MB. Free memory was 134.9MB in the beginning and 137.0MB in the end (delta: -2.1MB). Peak memory consumption was 66.1MB. Max. memory is 16.1GB. [2022-11-25 16:53:22,663 INFO L158 Benchmark]: TraceAbstraction took 20774.93ms. Allocated memory was 188.7MB in the beginning and 601.9MB in the end (delta: 413.1MB). Free memory was 137.0MB in the beginning and 159.4MB in the end (delta: -22.4MB). Peak memory consumption was 398.2MB. Max. memory is 16.1GB. [2022-11-25 16:53:22,664 INFO L158 Benchmark]: Witness Printer took 57.68ms. Allocated memory is still 601.9MB. Free memory was 159.4MB in the beginning and 155.2MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-25 16:53:22,665 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27ms. Allocated memory is still 130.0MB. Free memory is still 100.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 686.77ms. Allocated memory is still 188.7MB. Free memory was 155.7MB in the beginning and 139.3MB in the end (delta: 16.4MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 87.63ms. Allocated memory is still 188.7MB. Free memory was 139.3MB in the beginning and 137.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 52.07ms. Allocated memory is still 188.7MB. Free memory was 137.2MB in the beginning and 135.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 1322.55ms. Allocated memory is still 188.7MB. Free memory was 134.9MB in the beginning and 137.0MB in the end (delta: -2.1MB). Peak memory consumption was 66.1MB. Max. memory is 16.1GB. * TraceAbstraction took 20774.93ms. Allocated memory was 188.7MB in the beginning and 601.9MB in the end (delta: 413.1MB). Free memory was 137.0MB in the beginning and 159.4MB in the end (delta: -22.4MB). Peak memory consumption was 398.2MB. Max. memory is 16.1GB. * Witness Printer took 57.68ms. Allocated memory is still 601.9MB. Free memory was 159.4MB in the beginning and 155.2MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 13.1s, 169 PlacesBefore, 46 PlacesAfterwards, 158 TransitionsBefore, 33 TransitionsAfterwards, 3864 CoEnabledTransitionPairs, 7 FixpointIterations, 67 TrivialSequentialCompositions, 61 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 9 ConcurrentYvCompositions, 2 ChoiceCompositions, 139 TotalNumberOfCompositions, 12863 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 5175, independent: 4855, independent conditional: 0, independent unconditional: 4855, dependent: 320, dependent conditional: 0, dependent unconditional: 320, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 2628, independent: 2550, independent conditional: 0, independent unconditional: 2550, dependent: 78, dependent conditional: 0, dependent unconditional: 78, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 2628, independent: 2498, independent conditional: 0, independent unconditional: 2498, dependent: 130, dependent conditional: 0, dependent unconditional: 130, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 130, independent: 52, independent conditional: 0, independent unconditional: 52, dependent: 78, dependent conditional: 0, dependent unconditional: 78, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 1012, independent: 156, independent conditional: 0, independent unconditional: 156, dependent: 856, dependent conditional: 0, dependent unconditional: 856, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 5175, independent: 2305, independent conditional: 0, independent unconditional: 2305, dependent: 242, dependent conditional: 0, dependent unconditional: 242, unknown: 2628, unknown conditional: 0, unknown unconditional: 2628] , Statistics on independence cache: Total cache size (in pairs): 273, Positive cache size: 243, Positive conditional cache size: 0, Positive unconditional cache size: 243, Negative cache size: 30, Negative conditional cache size: 0, Negative unconditional cache size: 30, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 779]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 779]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 794]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 794]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 824]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 824]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 860]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 860]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 9 procedures, 203 locations, 20 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 20.6s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 6.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 13.3s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 258 SdHoareTripleChecker+Valid, 0.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 230 mSDsluCounter, 10 SdHoareTripleChecker+Invalid, 0.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 80 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 422 IncrementalHoareTripleChecker+Invalid, 502 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 80 mSolverCounterUnsat, 10 mSDtfsCounter, 422 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 12 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=186occurred in iteration=4, InterpolantAutomatonStates: 22, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 61 NumberOfCodeBlocks, 61 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 56 ConstructedInterpolants, 0 QuantifiedInterpolants, 168 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 8 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-11-25 16:53:22,708 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f84498d-3c62-4ebb-963c-639fe93f5344/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE