./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/pthread-wmm/safe017_power.oepc_power.opt_pso.oepc_pso.opt_rmo.oepc_rmo.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_e95a37bb-e3f5-4f34-8349-87c9ac55475c/bin/uautomizer-ZsLfNo2U6R/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e95a37bb-e3f5-4f34-8349-87c9ac55475c/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_e95a37bb-e3f5-4f34-8349-87c9ac55475c/bin/uautomizer-ZsLfNo2U6R/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e95a37bb-e3f5-4f34-8349-87c9ac55475c/bin/uautomizer-ZsLfNo2U6R/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-wmm/safe017_power.oepc_power.opt_pso.oepc_pso.opt_rmo.oepc_rmo.opt.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e95a37bb-e3f5-4f34-8349-87c9ac55475c/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_e95a37bb-e3f5-4f34-8349-87c9ac55475c/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 b046eb92ec2f4af5c767436762d7e86376926c2222092f8f03ea795d781fd943 --- 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 17:40:35,101 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-25 17:40:35,103 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-25 17:40:35,135 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-25 17:40:35,136 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-25 17:40:35,137 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-25 17:40:35,142 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-25 17:40:35,152 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-25 17:40:35,154 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-25 17:40:35,160 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-25 17:40:35,162 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-25 17:40:35,163 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-25 17:40:35,163 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-25 17:40:35,164 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-25 17:40:35,165 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-25 17:40:35,167 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-25 17:40:35,167 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-25 17:40:35,168 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-25 17:40:35,170 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-25 17:40:35,183 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-25 17:40:35,187 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-25 17:40:35,193 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-25 17:40:35,195 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-25 17:40:35,196 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-25 17:40:35,199 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-25 17:40:35,200 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-25 17:40:35,200 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-25 17:40:35,201 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-25 17:40:35,201 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-25 17:40:35,202 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-25 17:40:35,203 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-25 17:40:35,204 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-25 17:40:35,204 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-25 17:40:35,205 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-25 17:40:35,213 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-25 17:40:35,214 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-25 17:40:35,215 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-25 17:40:35,215 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-25 17:40:35,216 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-25 17:40:35,219 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-25 17:40:35,220 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-25 17:40:35,221 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e95a37bb-e3f5-4f34-8349-87c9ac55475c/bin/uautomizer-ZsLfNo2U6R/config/svcomp-Overflow-32bit-Automizer_Default.epf [2022-11-25 17:40:35,267 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-25 17:40:35,268 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-25 17:40:35,268 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-25 17:40:35,269 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-25 17:40:35,270 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-25 17:40:35,270 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-25 17:40:35,270 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-25 17:40:35,271 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-25 17:40:35,271 INFO L138 SettingsManager]: * Use SBE=true [2022-11-25 17:40:35,271 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-25 17:40:35,272 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-25 17:40:35,273 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-25 17:40:35,273 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-25 17:40:35,273 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-25 17:40:35,273 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-25 17:40:35,273 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-25 17:40:35,274 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-25 17:40:35,274 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-25 17:40:35,274 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-25 17:40:35,274 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-25 17:40:35,275 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-25 17:40:35,275 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-25 17:40:35,275 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-25 17:40:35,275 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-25 17:40:35,275 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-25 17:40:35,276 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-25 17:40:35,276 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 17:40:35,276 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-25 17:40:35,277 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-25 17:40:35,277 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-25 17:40:35,277 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-25 17:40:35,277 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-25 17:40:35,278 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-25 17:40:35,278 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-25 17:40:35,278 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-11-25 17:40:35,278 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-25 17:40:35,279 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_e95a37bb-e3f5-4f34-8349-87c9ac55475c/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e95a37bb-e3f5-4f34-8349-87c9ac55475c/bin/uautomizer-ZsLfNo2U6R Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b046eb92ec2f4af5c767436762d7e86376926c2222092f8f03ea795d781fd943 [2022-11-25 17:40:35,622 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-25 17:40:35,656 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-25 17:40:35,659 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-25 17:40:35,661 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-25 17:40:35,661 INFO L275 PluginConnector]: CDTParser initialized [2022-11-25 17:40:35,663 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e95a37bb-e3f5-4f34-8349-87c9ac55475c/bin/uautomizer-ZsLfNo2U6R/../../sv-benchmarks/c/pthread-wmm/safe017_power.oepc_power.opt_pso.oepc_pso.opt_rmo.oepc_rmo.opt.i [2022-11-25 17:40:38,770 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-25 17:40:39,176 INFO L351 CDTParser]: Found 1 translation units. [2022-11-25 17:40:39,177 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e95a37bb-e3f5-4f34-8349-87c9ac55475c/sv-benchmarks/c/pthread-wmm/safe017_power.oepc_power.opt_pso.oepc_pso.opt_rmo.oepc_rmo.opt.i [2022-11-25 17:40:39,202 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e95a37bb-e3f5-4f34-8349-87c9ac55475c/bin/uautomizer-ZsLfNo2U6R/data/70ed94ed7/72f8db91d2fc410b9b71406609cfa391/FLAG561a2011e [2022-11-25 17:40:39,225 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e95a37bb-e3f5-4f34-8349-87c9ac55475c/bin/uautomizer-ZsLfNo2U6R/data/70ed94ed7/72f8db91d2fc410b9b71406609cfa391 [2022-11-25 17:40:39,228 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-25 17:40:39,230 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-25 17:40:39,231 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-25 17:40:39,231 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-25 17:40:39,235 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-25 17:40:39,236 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 05:40:39" (1/1) ... [2022-11-25 17:40:39,238 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@36159a53 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:40:39, skipping insertion in model container [2022-11-25 17:40:39,239 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 05:40:39" (1/1) ... [2022-11-25 17:40:39,247 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-25 17:40:39,306 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-25 17:40:39,484 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_e95a37bb-e3f5-4f34-8349-87c9ac55475c/sv-benchmarks/c/pthread-wmm/safe017_power.oepc_power.opt_pso.oepc_pso.opt_rmo.oepc_rmo.opt.i[996,1009] [2022-11-25 17:40:39,668 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 17:40:39,671 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 17:40:39,672 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 17:40:39,672 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 17:40:39,673 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 17:40:39,677 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 17:40:39,677 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 17:40:39,681 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 17:40:39,682 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 17:40:39,682 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 17:40:39,683 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 17:40:39,687 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 17:40:39,687 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 17:40:39,688 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 17:40:39,688 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 17:40:39,689 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 17:40:39,689 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 17:40:39,690 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 17:40:39,690 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 17:40:39,694 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 17:40:39,694 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 17:40:39,695 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 17:40:39,703 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 17:40:39,704 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 17:40:39,704 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 17:40:39,708 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 17:40:39,708 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 17:40:39,720 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 17:40:39,721 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 17:40:39,733 INFO L203 MainTranslator]: Completed pre-run [2022-11-25 17:40:39,762 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_e95a37bb-e3f5-4f34-8349-87c9ac55475c/sv-benchmarks/c/pthread-wmm/safe017_power.oepc_power.opt_pso.oepc_pso.opt_rmo.oepc_rmo.opt.i[996,1009] [2022-11-25 17:40:39,802 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 17:40:39,803 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 17:40:39,804 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 17:40:39,804 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 17:40:39,804 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 17:40:39,811 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 17:40:39,812 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 17:40:39,813 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 17:40:39,815 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 17:40:39,816 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 17:40:39,816 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 17:40:39,829 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 17:40:39,829 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 17:40:39,830 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 17:40:39,833 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 17:40:39,833 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 17:40:39,834 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 17:40:39,834 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 17:40:39,834 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 17:40:39,841 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 17:40:39,841 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 17:40:39,841 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 17:40:39,845 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 17:40:39,846 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 17:40:39,846 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 17:40:39,848 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 17:40:39,848 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 17:40:39,869 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 17:40:39,870 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 17:40:39,931 INFO L208 MainTranslator]: Completed translation [2022-11-25 17:40:39,932 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:40:39 WrapperNode [2022-11-25 17:40:39,932 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-25 17:40:39,934 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-25 17:40:39,934 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-25 17:40:39,934 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-25 17:40:39,944 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:40:39" (1/1) ... [2022-11-25 17:40:39,967 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:40:39" (1/1) ... [2022-11-25 17:40:39,999 INFO L138 Inliner]: procedures = 176, calls = 52, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 143 [2022-11-25 17:40:39,999 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-25 17:40:40,000 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-25 17:40:40,000 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-25 17:40:40,001 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-25 17:40:40,012 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:40:39" (1/1) ... [2022-11-25 17:40:40,012 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:40:39" (1/1) ... [2022-11-25 17:40:40,033 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:40:39" (1/1) ... [2022-11-25 17:40:40,033 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:40:39" (1/1) ... [2022-11-25 17:40:40,041 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:40:39" (1/1) ... [2022-11-25 17:40:40,051 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:40:39" (1/1) ... [2022-11-25 17:40:40,054 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:40:39" (1/1) ... [2022-11-25 17:40:40,056 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:40:39" (1/1) ... [2022-11-25 17:40:40,059 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-25 17:40:40,072 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-25 17:40:40,072 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-25 17:40:40,073 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-25 17:40:40,074 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:40:39" (1/1) ... [2022-11-25 17:40:40,081 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 17:40:40,103 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e95a37bb-e3f5-4f34-8349-87c9ac55475c/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:40:40,128 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e95a37bb-e3f5-4f34-8349-87c9ac55475c/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-25 17:40:40,159 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e95a37bb-e3f5-4f34-8349-87c9ac55475c/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-25 17:40:40,193 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-25 17:40:40,193 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-11-25 17:40:40,194 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-25 17:40:40,194 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-25 17:40:40,194 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-25 17:40:40,194 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2022-11-25 17:40:40,195 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2022-11-25 17:40:40,195 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2022-11-25 17:40:40,195 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2022-11-25 17:40:40,195 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2022-11-25 17:40:40,195 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2022-11-25 17:40:40,195 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-25 17:40:40,196 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-11-25 17:40:40,196 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-25 17:40:40,196 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-25 17:40:40,199 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 17:40:40,470 INFO L235 CfgBuilder]: Building ICFG [2022-11-25 17:40:40,472 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-25 17:40:40,871 INFO L276 CfgBuilder]: Performing block encoding [2022-11-25 17:40:41,054 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-25 17:40:41,054 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-25 17:40:41,057 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 05:40:41 BoogieIcfgContainer [2022-11-25 17:40:41,058 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-25 17:40:41,060 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-25 17:40:41,061 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-25 17:40:41,065 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-25 17:40:41,065 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 05:40:39" (1/3) ... [2022-11-25 17:40:41,066 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@16f7d49d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 05:40:41, skipping insertion in model container [2022-11-25 17:40:41,066 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:40:39" (2/3) ... [2022-11-25 17:40:41,067 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@16f7d49d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 05:40:41, skipping insertion in model container [2022-11-25 17:40:41,067 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 05:40:41" (3/3) ... [2022-11-25 17:40:41,069 INFO L112 eAbstractionObserver]: Analyzing ICFG safe017_power.oepc_power.opt_pso.oepc_pso.opt_rmo.oepc_rmo.opt.i [2022-11-25 17:40:41,080 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-25 17:40:41,095 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-25 17:40:41,095 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2022-11-25 17:40:41,095 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-25 17:40:41,169 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-11-25 17:40:41,215 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 124 places, 116 transitions, 247 flow [2022-11-25 17:40:41,279 INFO L130 PetriNetUnfolder]: 2/113 cut-off events. [2022-11-25 17:40:41,280 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-25 17:40:41,285 INFO L83 FinitePrefix]: Finished finitePrefix Result has 123 conditions, 113 events. 2/113 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 65 event pairs, 0 based on Foata normal form. 0/105 useless extension candidates. Maximal degree in co-relation 76. Up to 2 conditions per place. [2022-11-25 17:40:41,286 INFO L82 GeneralOperation]: Start removeDead. Operand has 124 places, 116 transitions, 247 flow [2022-11-25 17:40:41,291 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 121 places, 113 transitions, 235 flow [2022-11-25 17:40:41,296 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-25 17:40:41,354 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 121 places, 113 transitions, 235 flow [2022-11-25 17:40:41,381 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 121 places, 113 transitions, 235 flow [2022-11-25 17:40:41,382 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 121 places, 113 transitions, 235 flow [2022-11-25 17:40:41,487 INFO L130 PetriNetUnfolder]: 2/113 cut-off events. [2022-11-25 17:40:41,488 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-25 17:40:41,489 INFO L83 FinitePrefix]: Finished finitePrefix Result has 123 conditions, 113 events. 2/113 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 65 event pairs, 0 based on Foata normal form. 0/105 useless extension candidates. Maximal degree in co-relation 76. Up to 2 conditions per place. [2022-11-25 17:40:41,491 INFO L119 LiptonReduction]: Number of co-enabled transitions 2478 [2022-11-25 17:40:48,521 INFO L134 LiptonReduction]: Checked pairs total: 7940 [2022-11-25 17:40:48,521 INFO L136 LiptonReduction]: Total number of compositions: 100 [2022-11-25 17:40:48,541 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-25 17:40:48,548 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;@41dd0af7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-25 17:40:48,549 INFO L358 AbstractCegarLoop]: Starting to check reachability of 15 error locations. [2022-11-25 17:40:48,553 INFO L130 PetriNetUnfolder]: 0/7 cut-off events. [2022-11-25 17:40:48,553 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-25 17:40:48,554 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 17:40:48,554 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2022-11-25 17:40:48,555 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-11-25 17:40:48,561 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:40:48,561 INFO L85 PathProgramCache]: Analyzing trace with hash 488459924, now seen corresponding path program 1 times [2022-11-25 17:40:48,573 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:40:48,574 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [330836408] [2022-11-25 17:40:48,574 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:40:48,575 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:40:48,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:40:49,017 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 17:40:49,018 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:40:49,018 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [330836408] [2022-11-25 17:40:49,019 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [330836408] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:40:49,019 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:40:49,020 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-25 17:40:49,021 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1825555145] [2022-11-25 17:40:49,022 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:40:49,033 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 17:40:49,034 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:40:49,061 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 17:40:49,063 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 17:40:49,091 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 94 out of 216 [2022-11-25 17:40:49,096 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 36 places, 27 transitions, 63 flow. Second operand has 3 states, 3 states have (on average 95.33333333333333) internal successors, (286), 3 states have internal predecessors, (286), 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 17:40:49,097 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 17:40:49,097 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 94 of 216 [2022-11-25 17:40:49,099 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 17:40:49,657 INFO L130 PetriNetUnfolder]: 1164/1777 cut-off events. [2022-11-25 17:40:49,657 INFO L131 PetriNetUnfolder]: For 23/23 co-relation queries the response was YES. [2022-11-25 17:40:49,667 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3569 conditions, 1777 events. 1164/1777 cut-off events. For 23/23 co-relation queries the response was YES. Maximal size of possible extension queue 104. Compared 8094 event pairs, 1164 based on Foata normal form. 0/1429 useless extension candidates. Maximal degree in co-relation 3558. Up to 1725 conditions per place. [2022-11-25 17:40:49,682 INFO L137 encePairwiseOnDemand]: 211/216 looper letters, 20 selfloop transitions, 1 changer transitions 0/23 dead transitions. [2022-11-25 17:40:49,682 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 35 places, 23 transitions, 97 flow [2022-11-25 17:40:49,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 17:40:49,688 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-25 17:40:49,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 307 transitions. [2022-11-25 17:40:49,708 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4737654320987654 [2022-11-25 17:40:49,709 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 307 transitions. [2022-11-25 17:40:49,710 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 307 transitions. [2022-11-25 17:40:49,714 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 17:40:49,717 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 307 transitions. [2022-11-25 17:40:49,725 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 102.33333333333333) internal successors, (307), 3 states have internal predecessors, (307), 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 17:40:49,736 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 216.0) internal successors, (864), 4 states have internal predecessors, (864), 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 17:40:49,737 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 216.0) internal successors, (864), 4 states have internal predecessors, (864), 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 17:40:49,739 INFO L175 Difference]: Start difference. First operand has 36 places, 27 transitions, 63 flow. Second operand 3 states and 307 transitions. [2022-11-25 17:40:49,740 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 35 places, 23 transitions, 97 flow [2022-11-25 17:40:49,744 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 32 places, 23 transitions, 94 flow, removed 0 selfloop flow, removed 3 redundant places. [2022-11-25 17:40:49,747 INFO L231 Difference]: Finished difference. Result has 32 places, 23 transitions, 54 flow [2022-11-25 17:40:49,750 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=216, PETRI_DIFFERENCE_MINUEND_FLOW=52, PETRI_DIFFERENCE_MINUEND_PLACES=30, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=23, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=22, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=54, PETRI_PLACES=32, PETRI_TRANSITIONS=23} [2022-11-25 17:40:49,755 INFO L288 CegarLoopForPetriNet]: 36 programPoint places, -4 predicate places. [2022-11-25 17:40:49,755 INFO L495 AbstractCegarLoop]: Abstraction has has 32 places, 23 transitions, 54 flow [2022-11-25 17:40:49,756 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 95.33333333333333) internal successors, (286), 3 states have internal predecessors, (286), 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 17:40:49,756 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 17:40:49,756 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2022-11-25 17:40:49,757 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-25 17:40:49,757 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-11-25 17:40:49,769 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:40:49,769 INFO L85 PathProgramCache]: Analyzing trace with hash -2037613288, now seen corresponding path program 1 times [2022-11-25 17:40:49,770 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:40:49,770 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1267289156] [2022-11-25 17:40:49,770 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:40:49,771 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:40:49,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:40:49,905 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 17:40:49,906 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:40:49,906 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1267289156] [2022-11-25 17:40:49,907 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1267289156] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:40:49,907 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:40:49,907 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-25 17:40:49,908 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1367804263] [2022-11-25 17:40:49,908 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:40:49,910 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 17:40:49,910 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:40:49,911 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 17:40:49,911 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 17:40:49,923 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 94 out of 216 [2022-11-25 17:40:49,924 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 32 places, 23 transitions, 54 flow. Second operand has 3 states, 3 states have (on average 95.66666666666667) internal successors, (287), 3 states have internal predecessors, (287), 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 17:40:49,924 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 17:40:49,924 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 94 of 216 [2022-11-25 17:40:49,925 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 17:40:50,264 INFO L130 PetriNetUnfolder]: 727/1135 cut-off events. [2022-11-25 17:40:50,265 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-25 17:40:50,267 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2309 conditions, 1135 events. 727/1135 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 64. Compared 5036 event pairs, 246 based on Foata normal form. 0/1012 useless extension candidates. Maximal degree in co-relation 2303. Up to 774 conditions per place. [2022-11-25 17:40:50,273 INFO L137 encePairwiseOnDemand]: 209/216 looper letters, 33 selfloop transitions, 4 changer transitions 0/39 dead transitions. [2022-11-25 17:40:50,273 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 34 places, 39 transitions, 164 flow [2022-11-25 17:40:50,274 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 17:40:50,274 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-25 17:40:50,276 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 322 transitions. [2022-11-25 17:40:50,277 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.49691358024691357 [2022-11-25 17:40:50,277 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 322 transitions. [2022-11-25 17:40:50,277 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 322 transitions. [2022-11-25 17:40:50,278 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 17:40:50,278 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 322 transitions. [2022-11-25 17:40:50,279 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 107.33333333333333) internal successors, (322), 3 states have internal predecessors, (322), 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 17:40:50,283 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 216.0) internal successors, (864), 4 states have internal predecessors, (864), 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 17:40:50,284 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 216.0) internal successors, (864), 4 states have internal predecessors, (864), 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 17:40:50,284 INFO L175 Difference]: Start difference. First operand has 32 places, 23 transitions, 54 flow. Second operand 3 states and 322 transitions. [2022-11-25 17:40:50,284 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 34 places, 39 transitions, 164 flow [2022-11-25 17:40:50,285 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 33 places, 39 transitions, 163 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-25 17:40:50,286 INFO L231 Difference]: Finished difference. Result has 34 places, 26 transitions, 83 flow [2022-11-25 17:40:50,287 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=216, PETRI_DIFFERENCE_MINUEND_FLOW=53, PETRI_DIFFERENCE_MINUEND_PLACES=31, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=23, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=19, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=83, PETRI_PLACES=34, PETRI_TRANSITIONS=26} [2022-11-25 17:40:50,288 INFO L288 CegarLoopForPetriNet]: 36 programPoint places, -2 predicate places. [2022-11-25 17:40:50,288 INFO L495 AbstractCegarLoop]: Abstraction has has 34 places, 26 transitions, 83 flow [2022-11-25 17:40:50,289 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 95.66666666666667) internal successors, (287), 3 states have internal predecessors, (287), 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 17:40:50,289 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 17:40:50,289 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:40:50,290 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-25 17:40:50,290 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-11-25 17:40:50,293 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:40:50,293 INFO L85 PathProgramCache]: Analyzing trace with hash 836405054, now seen corresponding path program 1 times [2022-11-25 17:40:50,294 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:40:50,294 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [352876962] [2022-11-25 17:40:50,294 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:40:50,295 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:40:50,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:40:50,465 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 17:40:50,465 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:40:50,466 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [352876962] [2022-11-25 17:40:50,466 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [352876962] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:40:50,466 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:40:50,467 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-25 17:40:50,467 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1805936570] [2022-11-25 17:40:50,467 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:40:50,468 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-25 17:40:50,468 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:40:50,469 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-25 17:40:50,469 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-25 17:40:50,478 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 94 out of 216 [2022-11-25 17:40:50,479 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 34 places, 26 transitions, 83 flow. Second operand has 4 states, 4 states have (on average 96.5) internal successors, (386), 4 states have internal predecessors, (386), 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 17:40:50,480 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 17:40:50,480 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 94 of 216 [2022-11-25 17:40:50,480 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 17:40:50,817 INFO L130 PetriNetUnfolder]: 576/905 cut-off events. [2022-11-25 17:40:50,818 INFO L131 PetriNetUnfolder]: For 96/96 co-relation queries the response was YES. [2022-11-25 17:40:50,821 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2182 conditions, 905 events. 576/905 cut-off events. For 96/96 co-relation queries the response was YES. Maximal size of possible extension queue 59. Compared 3879 event pairs, 218 based on Foata normal form. 0/881 useless extension candidates. Maximal degree in co-relation 2174. Up to 369 conditions per place. [2022-11-25 17:40:50,825 INFO L137 encePairwiseOnDemand]: 209/216 looper letters, 41 selfloop transitions, 7 changer transitions 3/53 dead transitions. [2022-11-25 17:40:50,826 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 37 places, 53 transitions, 251 flow [2022-11-25 17:40:50,831 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-25 17:40:50,831 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-11-25 17:40:50,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 430 transitions. [2022-11-25 17:40:50,833 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4976851851851852 [2022-11-25 17:40:50,833 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 430 transitions. [2022-11-25 17:40:50,833 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 430 transitions. [2022-11-25 17:40:50,833 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 17:40:50,833 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 430 transitions. [2022-11-25 17:40:50,835 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 107.5) internal successors, (430), 4 states have internal predecessors, (430), 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 17:40:50,837 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 216.0) internal successors, (1080), 5 states have internal predecessors, (1080), 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 17:40:50,838 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 216.0) internal successors, (1080), 5 states have internal predecessors, (1080), 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 17:40:50,838 INFO L175 Difference]: Start difference. First operand has 34 places, 26 transitions, 83 flow. Second operand 4 states and 430 transitions. [2022-11-25 17:40:50,838 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 37 places, 53 transitions, 251 flow [2022-11-25 17:40:50,840 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 36 places, 53 transitions, 247 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-25 17:40:50,841 INFO L231 Difference]: Finished difference. Result has 37 places, 26 transitions, 105 flow [2022-11-25 17:40:50,842 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=216, PETRI_DIFFERENCE_MINUEND_FLOW=79, PETRI_DIFFERENCE_MINUEND_PLACES=33, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=26, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=19, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=105, PETRI_PLACES=37, PETRI_TRANSITIONS=26} [2022-11-25 17:40:50,843 INFO L288 CegarLoopForPetriNet]: 36 programPoint places, 1 predicate places. [2022-11-25 17:40:50,843 INFO L495 AbstractCegarLoop]: Abstraction has has 37 places, 26 transitions, 105 flow [2022-11-25 17:40:50,844 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 96.5) internal successors, (386), 4 states have internal predecessors, (386), 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 17:40:50,844 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 17:40:50,844 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:40:50,844 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-25 17:40:50,845 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-11-25 17:40:50,845 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:40:50,845 INFO L85 PathProgramCache]: Analyzing trace with hash -1759798503, now seen corresponding path program 1 times [2022-11-25 17:40:50,846 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:40:50,846 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1651114769] [2022-11-25 17:40:50,847 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:40:50,847 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:40:50,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:40:51,069 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 17:40:51,069 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:40:51,069 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1651114769] [2022-11-25 17:40:51,070 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1651114769] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:40:51,070 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:40:51,070 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 17:40:51,071 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [968572715] [2022-11-25 17:40:51,071 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:40:51,072 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-25 17:40:51,072 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:40:51,074 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-25 17:40:51,074 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-11-25 17:40:51,088 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 94 out of 216 [2022-11-25 17:40:51,089 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 37 places, 26 transitions, 105 flow. Second operand has 5 states, 5 states have (on average 97.0) internal successors, (485), 5 states have internal predecessors, (485), 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 17:40:51,090 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 17:40:51,090 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 94 of 216 [2022-11-25 17:40:51,090 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 17:40:51,388 INFO L130 PetriNetUnfolder]: 556/869 cut-off events. [2022-11-25 17:40:51,388 INFO L131 PetriNetUnfolder]: For 654/654 co-relation queries the response was YES. [2022-11-25 17:40:51,390 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2240 conditions, 869 events. 556/869 cut-off events. For 654/654 co-relation queries the response was YES. Maximal size of possible extension queue 59. Compared 3755 event pairs, 218 based on Foata normal form. 12/869 useless extension candidates. Maximal degree in co-relation 2230. Up to 369 conditions per place. [2022-11-25 17:40:51,391 INFO L137 encePairwiseOnDemand]: 209/216 looper letters, 0 selfloop transitions, 0 changer transitions 47/47 dead transitions. [2022-11-25 17:40:51,391 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 38 places, 47 transitions, 231 flow [2022-11-25 17:40:51,392 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-25 17:40:51,392 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-11-25 17:40:51,393 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 518 transitions. [2022-11-25 17:40:51,394 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.47962962962962963 [2022-11-25 17:40:51,394 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 518 transitions. [2022-11-25 17:40:51,394 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 518 transitions. [2022-11-25 17:40:51,395 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 17:40:51,395 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 518 transitions. [2022-11-25 17:40:51,396 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 103.6) internal successors, (518), 5 states have internal predecessors, (518), 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 17:40:51,399 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 216.0) internal successors, (1296), 6 states have internal predecessors, (1296), 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 17:40:51,400 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 216.0) internal successors, (1296), 6 states have internal predecessors, (1296), 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 17:40:51,400 INFO L175 Difference]: Start difference. First operand has 37 places, 26 transitions, 105 flow. Second operand 5 states and 518 transitions. [2022-11-25 17:40:51,400 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 38 places, 47 transitions, 231 flow [2022-11-25 17:40:51,405 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 34 places, 47 transitions, 207 flow, removed 3 selfloop flow, removed 4 redundant places. [2022-11-25 17:40:51,406 INFO L231 Difference]: Finished difference. Result has 34 places, 0 transitions, 0 flow [2022-11-25 17:40:51,406 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=216, PETRI_DIFFERENCE_MINUEND_FLOW=63, PETRI_DIFFERENCE_MINUEND_PLACES=30, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=23, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=0, PETRI_PLACES=34, PETRI_TRANSITIONS=0} [2022-11-25 17:40:51,409 INFO L288 CegarLoopForPetriNet]: 36 programPoint places, -2 predicate places. [2022-11-25 17:40:51,409 INFO L495 AbstractCegarLoop]: Abstraction has has 34 places, 0 transitions, 0 flow [2022-11-25 17:40:51,410 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 97.0) internal successors, (485), 5 states have internal predecessors, (485), 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 17:40:51,412 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 15 remaining) [2022-11-25 17:40:51,413 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 15 remaining) [2022-11-25 17:40:51,413 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 15 remaining) [2022-11-25 17:40:51,414 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 15 remaining) [2022-11-25 17:40:51,414 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 15 remaining) [2022-11-25 17:40:51,414 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 15 remaining) [2022-11-25 17:40:51,414 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 15 remaining) [2022-11-25 17:40:51,415 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (7 of 15 remaining) [2022-11-25 17:40:51,415 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (6 of 15 remaining) [2022-11-25 17:40:51,415 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 15 remaining) [2022-11-25 17:40:51,415 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 15 remaining) [2022-11-25 17:40:51,416 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 15 remaining) [2022-11-25 17:40:51,416 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 15 remaining) [2022-11-25 17:40:51,416 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 15 remaining) [2022-11-25 17:40:51,416 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 15 remaining) [2022-11-25 17:40:51,417 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-25 17:40:51,417 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2022-11-25 17:40:51,425 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-25 17:40:51,425 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-25 17:40:51,440 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.11 05:40:51 BasicIcfg [2022-11-25 17:40:51,440 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-25 17:40:51,441 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-25 17:40:51,441 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-25 17:40:51,442 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-25 17:40:51,442 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 05:40:41" (3/4) ... [2022-11-25 17:40:51,445 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-25 17:40:51,451 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2022-11-25 17:40:51,451 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2022-11-25 17:40:51,451 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2022-11-25 17:40:51,460 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 30 nodes and edges [2022-11-25 17:40:51,460 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2022-11-25 17:40:51,461 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2022-11-25 17:40:51,461 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-25 17:40:51,520 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e95a37bb-e3f5-4f34-8349-87c9ac55475c/bin/uautomizer-ZsLfNo2U6R/witness.graphml [2022-11-25 17:40:51,522 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-25 17:40:51,522 INFO L158 Benchmark]: Toolchain (without parser) took 12292.85ms. Allocated memory was 159.4MB in the beginning and 239.1MB in the end (delta: 79.7MB). Free memory was 129.3MB in the beginning and 157.4MB in the end (delta: -28.0MB). Peak memory consumption was 54.8MB. Max. memory is 16.1GB. [2022-11-25 17:40:51,523 INFO L158 Benchmark]: CDTParser took 0.30ms. Allocated memory is still 130.0MB. Free memory was 97.6MB in the beginning and 97.5MB in the end (delta: 125.9kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 17:40:51,523 INFO L158 Benchmark]: CACSL2BoogieTranslator took 701.43ms. Allocated memory is still 159.4MB. Free memory was 128.8MB in the beginning and 102.9MB in the end (delta: 25.9MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2022-11-25 17:40:51,523 INFO L158 Benchmark]: Boogie Procedure Inliner took 65.60ms. Allocated memory is still 159.4MB. Free memory was 102.9MB in the beginning and 100.3MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-25 17:40:51,524 INFO L158 Benchmark]: Boogie Preprocessor took 71.32ms. Allocated memory is still 159.4MB. Free memory was 100.3MB in the beginning and 98.1MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-25 17:40:51,524 INFO L158 Benchmark]: RCFGBuilder took 985.47ms. Allocated memory is still 159.4MB. Free memory was 98.1MB in the beginning and 63.2MB in the end (delta: 35.0MB). Peak memory consumption was 35.7MB. Max. memory is 16.1GB. [2022-11-25 17:40:51,524 INFO L158 Benchmark]: TraceAbstraction took 10380.19ms. Allocated memory was 159.4MB in the beginning and 239.1MB in the end (delta: 79.7MB). Free memory was 62.6MB in the beginning and 160.5MB in the end (delta: -97.9MB). Peak memory consumption was 82.1MB. Max. memory is 16.1GB. [2022-11-25 17:40:51,525 INFO L158 Benchmark]: Witness Printer took 80.58ms. Allocated memory is still 239.1MB. Free memory was 160.5MB in the beginning and 157.4MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-25 17:40:51,528 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30ms. Allocated memory is still 130.0MB. Free memory was 97.6MB in the beginning and 97.5MB in the end (delta: 125.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 701.43ms. Allocated memory is still 159.4MB. Free memory was 128.8MB in the beginning and 102.9MB in the end (delta: 25.9MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 65.60ms. Allocated memory is still 159.4MB. Free memory was 102.9MB in the beginning and 100.3MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 71.32ms. Allocated memory is still 159.4MB. Free memory was 100.3MB in the beginning and 98.1MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 985.47ms. Allocated memory is still 159.4MB. Free memory was 98.1MB in the beginning and 63.2MB in the end (delta: 35.0MB). Peak memory consumption was 35.7MB. Max. memory is 16.1GB. * TraceAbstraction took 10380.19ms. Allocated memory was 159.4MB in the beginning and 239.1MB in the end (delta: 79.7MB). Free memory was 62.6MB in the beginning and 160.5MB in the end (delta: -97.9MB). Peak memory consumption was 82.1MB. Max. memory is 16.1GB. * Witness Printer took 80.58ms. Allocated memory is still 239.1MB. Free memory was 160.5MB in the beginning and 157.4MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 7.1s, 121 PlacesBefore, 36 PlacesAfterwards, 113 TransitionsBefore, 27 TransitionsAfterwards, 2478 CoEnabledTransitionPairs, 7 FixpointIterations, 39 TrivialSequentialCompositions, 49 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 11 ConcurrentYvCompositions, 1 ChoiceCompositions, 100 TotalNumberOfCompositions, 7940 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 3271, independent: 3027, independent conditional: 0, independent unconditional: 3027, dependent: 244, dependent conditional: 0, dependent unconditional: 244, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1812, independent: 1745, independent conditional: 0, independent unconditional: 1745, dependent: 67, dependent conditional: 0, dependent unconditional: 67, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1812, independent: 1695, independent conditional: 0, independent unconditional: 1695, dependent: 117, dependent conditional: 0, dependent unconditional: 117, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 117, independent: 50, independent conditional: 0, independent unconditional: 50, dependent: 67, dependent conditional: 0, dependent unconditional: 67, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 923, independent: 129, independent conditional: 0, independent unconditional: 129, dependent: 794, dependent conditional: 0, dependent unconditional: 794, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 3271, independent: 1282, independent conditional: 0, independent unconditional: 1282, dependent: 177, dependent conditional: 0, dependent unconditional: 177, unknown: 1812, unknown conditional: 0, unknown unconditional: 1812] , Statistics on independence cache: Total cache size (in pairs): 171, Positive cache size: 144, Positive conditional cache size: 0, Positive unconditional cache size: 144, Negative cache size: 27, Negative conditional cache size: 0, Negative unconditional cache size: 27, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 761]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 761]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 778]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 778]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 798]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 798]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 147 locations, 15 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 10.2s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 7.3s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 169 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 144 mSDsluCounter, 7 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 40 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 182 IncrementalHoareTripleChecker+Invalid, 222 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 40 mSolverCounterUnsat, 7 mSDtfsCounter, 182 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 7 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=105occurred in iteration=3, InterpolantAutomatonStates: 15, 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, 0.2s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 39 NumberOfCodeBlocks, 39 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 35 ConstructedInterpolants, 0 QuantifiedInterpolants, 105 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 6 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-11-25 17:40:51,555 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e95a37bb-e3f5-4f34-8349-87c9ac55475c/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