./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/pthread-wmm/mix036_pso.opt_tso.opt.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version e04fb08f 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_f7d0e3a0-3bb6-4745-bfb7-474cbd2a30a7/bin/uautomizer-tPACEb0tL8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7d0e3a0-3bb6-4745-bfb7-474cbd2a30a7/bin/uautomizer-tPACEb0tL8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7d0e3a0-3bb6-4745-bfb7-474cbd2a30a7/bin/uautomizer-tPACEb0tL8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7d0e3a0-3bb6-4745-bfb7-474cbd2a30a7/bin/uautomizer-tPACEb0tL8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-wmm/mix036_pso.opt_tso.opt.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7d0e3a0-3bb6-4745-bfb7-474cbd2a30a7/bin/uautomizer-tPACEb0tL8/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7d0e3a0-3bb6-4745-bfb7-474cbd2a30a7/bin/uautomizer-tPACEb0tL8 --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 eb5b5f76ea992c17ebcf5a0e506a820a4d574c4d0723905971e2f5f6725ae203 --- 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-e04fb08 [2022-11-16 11:20:04,282 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-16 11:20:04,285 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-16 11:20:04,336 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-16 11:20:04,337 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-16 11:20:04,342 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-16 11:20:04,345 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-16 11:20:04,348 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-16 11:20:04,353 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-16 11:20:04,358 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-16 11:20:04,359 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-16 11:20:04,360 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-16 11:20:04,361 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-16 11:20:04,362 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-16 11:20:04,363 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-16 11:20:04,364 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-16 11:20:04,365 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-16 11:20:04,366 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-16 11:20:04,368 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-16 11:20:04,370 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-16 11:20:04,372 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-16 11:20:04,377 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-16 11:20:04,381 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-16 11:20:04,382 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-16 11:20:04,397 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-16 11:20:04,400 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-16 11:20:04,401 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-16 11:20:04,402 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-16 11:20:04,403 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-16 11:20:04,405 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-16 11:20:04,405 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-16 11:20:04,406 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-16 11:20:04,409 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-16 11:20:04,410 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-16 11:20:04,412 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-16 11:20:04,413 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-16 11:20:04,414 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-16 11:20:04,414 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-16 11:20:04,414 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-16 11:20:04,415 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-16 11:20:04,416 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-16 11:20:04,417 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7d0e3a0-3bb6-4745-bfb7-474cbd2a30a7/bin/uautomizer-tPACEb0tL8/config/svcomp-Overflow-32bit-Automizer_Default.epf [2022-11-16 11:20:04,468 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-16 11:20:04,469 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-16 11:20:04,469 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-16 11:20:04,470 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-16 11:20:04,471 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-16 11:20:04,472 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-16 11:20:04,472 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-16 11:20:04,473 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-16 11:20:04,473 INFO L138 SettingsManager]: * Use SBE=true [2022-11-16 11:20:04,473 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-16 11:20:04,475 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-16 11:20:04,475 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-16 11:20:04,475 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-16 11:20:04,476 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-16 11:20:04,476 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-16 11:20:04,476 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-16 11:20:04,477 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-16 11:20:04,477 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-16 11:20:04,477 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-16 11:20:04,477 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-16 11:20:04,478 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-16 11:20:04,478 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-16 11:20:04,478 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-16 11:20:04,479 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-16 11:20:04,479 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-16 11:20:04,479 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-16 11:20:04,481 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 11:20:04,482 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-16 11:20:04,482 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-16 11:20:04,482 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-16 11:20:04,483 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-16 11:20:04,483 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-16 11:20:04,483 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-16 11:20:04,484 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-16 11:20:04,484 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-16 11:20:04,484 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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_f7d0e3a0-3bb6-4745-bfb7-474cbd2a30a7/bin/uautomizer-tPACEb0tL8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7d0e3a0-3bb6-4745-bfb7-474cbd2a30a7/bin/uautomizer-tPACEb0tL8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> eb5b5f76ea992c17ebcf5a0e506a820a4d574c4d0723905971e2f5f6725ae203 [2022-11-16 11:20:04,808 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-16 11:20:04,835 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-16 11:20:04,839 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-16 11:20:04,841 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-16 11:20:04,844 INFO L275 PluginConnector]: CDTParser initialized [2022-11-16 11:20:04,846 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7d0e3a0-3bb6-4745-bfb7-474cbd2a30a7/bin/uautomizer-tPACEb0tL8/../../sv-benchmarks/c/pthread-wmm/mix036_pso.opt_tso.opt.i [2022-11-16 11:20:04,933 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7d0e3a0-3bb6-4745-bfb7-474cbd2a30a7/bin/uautomizer-tPACEb0tL8/data/4177130ab/6c7969bc2450413291bc1c8fda3eb611/FLAG22783d89b [2022-11-16 11:20:05,666 INFO L306 CDTParser]: Found 1 translation units. [2022-11-16 11:20:05,666 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7d0e3a0-3bb6-4745-bfb7-474cbd2a30a7/sv-benchmarks/c/pthread-wmm/mix036_pso.opt_tso.opt.i [2022-11-16 11:20:05,685 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7d0e3a0-3bb6-4745-bfb7-474cbd2a30a7/bin/uautomizer-tPACEb0tL8/data/4177130ab/6c7969bc2450413291bc1c8fda3eb611/FLAG22783d89b [2022-11-16 11:20:05,910 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7d0e3a0-3bb6-4745-bfb7-474cbd2a30a7/bin/uautomizer-tPACEb0tL8/data/4177130ab/6c7969bc2450413291bc1c8fda3eb611 [2022-11-16 11:20:05,913 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-16 11:20:05,915 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-16 11:20:05,917 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-16 11:20:05,917 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-16 11:20:05,921 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-16 11:20:05,922 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 11:20:05" (1/1) ... [2022-11-16 11:20:05,924 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1ed9c8d2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:20:05, skipping insertion in model container [2022-11-16 11:20:05,924 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 11:20:05" (1/1) ... [2022-11-16 11:20:05,933 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-16 11:20:05,981 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-16 11:20:06,254 WARN L229 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_f7d0e3a0-3bb6-4745-bfb7-474cbd2a30a7/sv-benchmarks/c/pthread-wmm/mix036_pso.opt_tso.opt.i[956,969] [2022-11-16 11:20:06,555 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 11:20:06,577 INFO L203 MainTranslator]: Completed pre-run [2022-11-16 11:20:06,592 WARN L229 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_f7d0e3a0-3bb6-4745-bfb7-474cbd2a30a7/sv-benchmarks/c/pthread-wmm/mix036_pso.opt_tso.opt.i[956,969] [2022-11-16 11:20:06,664 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 11:20:06,722 INFO L208 MainTranslator]: Completed translation [2022-11-16 11:20:06,723 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:20:06 WrapperNode [2022-11-16 11:20:06,723 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-16 11:20:06,724 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-16 11:20:06,725 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-16 11:20:06,725 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-16 11:20:06,734 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:20:06" (1/1) ... [2022-11-16 11:20:06,769 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:20:06" (1/1) ... [2022-11-16 11:20:06,837 INFO L138 Inliner]: procedures = 177, calls = 71, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 155 [2022-11-16 11:20:06,837 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-16 11:20:06,838 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-16 11:20:06,839 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-16 11:20:06,839 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-16 11:20:06,851 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:20:06" (1/1) ... [2022-11-16 11:20:06,851 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:20:06" (1/1) ... [2022-11-16 11:20:06,860 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:20:06" (1/1) ... [2022-11-16 11:20:06,861 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:20:06" (1/1) ... [2022-11-16 11:20:06,869 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:20:06" (1/1) ... [2022-11-16 11:20:06,872 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:20:06" (1/1) ... [2022-11-16 11:20:06,874 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:20:06" (1/1) ... [2022-11-16 11:20:06,876 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:20:06" (1/1) ... [2022-11-16 11:20:06,880 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-16 11:20:06,881 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-16 11:20:06,882 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-16 11:20:06,882 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-16 11:20:06,896 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:20:06" (1/1) ... [2022-11-16 11:20:06,904 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 11:20:06,920 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7d0e3a0-3bb6-4745-bfb7-474cbd2a30a7/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:20:06,949 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7d0e3a0-3bb6-4745-bfb7-474cbd2a30a7/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-16 11:20:06,961 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7d0e3a0-3bb6-4745-bfb7-474cbd2a30a7/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-16 11:20:07,003 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-16 11:20:07,003 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-11-16 11:20:07,003 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-16 11:20:07,003 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-16 11:20:07,004 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-16 11:20:07,006 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2022-11-16 11:20:07,006 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2022-11-16 11:20:07,006 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2022-11-16 11:20:07,006 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2022-11-16 11:20:07,007 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2022-11-16 11:20:07,007 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2022-11-16 11:20:07,007 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2022-11-16 11:20:07,007 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2022-11-16 11:20:07,008 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-16 11:20:07,008 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-11-16 11:20:07,008 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-16 11:20:07,008 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-16 11:20:07,010 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-16 11:20:07,214 INFO L235 CfgBuilder]: Building ICFG [2022-11-16 11:20:07,216 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-16 11:20:07,654 INFO L276 CfgBuilder]: Performing block encoding [2022-11-16 11:20:07,833 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-16 11:20:07,834 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-16 11:20:07,837 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 11:20:07 BoogieIcfgContainer [2022-11-16 11:20:07,838 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-16 11:20:07,841 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-16 11:20:07,841 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-16 11:20:07,846 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-16 11:20:07,846 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 11:20:05" (1/3) ... [2022-11-16 11:20:07,847 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@24d6ac2a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 11:20:07, skipping insertion in model container [2022-11-16 11:20:07,847 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:20:06" (2/3) ... [2022-11-16 11:20:07,848 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@24d6ac2a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 11:20:07, skipping insertion in model container [2022-11-16 11:20:07,848 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 11:20:07" (3/3) ... [2022-11-16 11:20:07,850 INFO L112 eAbstractionObserver]: Analyzing ICFG mix036_pso.opt_tso.opt.i [2022-11-16 11:20:07,861 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-16 11:20:07,875 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-16 11:20:07,876 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2022-11-16 11:20:07,876 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-16 11:20:07,956 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-11-16 11:20:08,005 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 155 places, 144 transitions, 308 flow [2022-11-16 11:20:08,135 INFO L130 PetriNetUnfolder]: 2/140 cut-off events. [2022-11-16 11:20:08,136 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-16 11:20:08,143 INFO L83 FinitePrefix]: Finished finitePrefix Result has 153 conditions, 140 events. 2/140 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 90 event pairs, 0 based on Foata normal form. 0/130 useless extension candidates. Maximal degree in co-relation 96. Up to 2 conditions per place. [2022-11-16 11:20:08,144 INFO L82 GeneralOperation]: Start removeDead. Operand has 155 places, 144 transitions, 308 flow [2022-11-16 11:20:08,159 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 151 places, 140 transitions, 292 flow [2022-11-16 11:20:08,188 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-16 11:20:08,198 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;@161cf780, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-16 11:20:08,199 INFO L358 AbstractCegarLoop]: Starting to check reachability of 20 error locations. [2022-11-16 11:20:08,229 INFO L130 PetriNetUnfolder]: 0/56 cut-off events. [2022-11-16 11:20:08,231 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-16 11:20:08,231 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:20:08,232 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:20:08,234 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2022-11-16 11:20:08,243 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:20:08,243 INFO L85 PathProgramCache]: Analyzing trace with hash -1151192398, now seen corresponding path program 1 times [2022-11-16 11:20:08,256 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:20:08,257 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1349005829] [2022-11-16 11:20:08,257 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:20:08,258 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:20:08,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:20:08,853 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:20:08,854 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:20:08,855 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1349005829] [2022-11-16 11:20:08,855 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1349005829] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:20:08,856 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:20:08,856 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 11:20:08,859 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2092726061] [2022-11-16 11:20:08,860 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:20:08,873 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 11:20:08,874 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:20:08,934 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 11:20:08,938 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 11:20:08,945 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 119 out of 144 [2022-11-16 11:20:08,954 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 151 places, 140 transitions, 292 flow. Second operand has 3 states, 3 states have (on average 120.0) internal successors, (360), 3 states have internal predecessors, (360), 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) [2022-11-16 11:20:08,955 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:20:08,955 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 119 of 144 [2022-11-16 11:20:08,956 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:20:10,562 INFO L130 PetriNetUnfolder]: 2210/3868 cut-off events. [2022-11-16 11:20:10,562 INFO L131 PetriNetUnfolder]: For 57/57 co-relation queries the response was YES. [2022-11-16 11:20:10,585 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7173 conditions, 3868 events. 2210/3868 cut-off events. For 57/57 co-relation queries the response was YES. Maximal size of possible extension queue 388. Compared 28376 event pairs, 825 based on Foata normal form. 598/3109 useless extension candidates. Maximal degree in co-relation 7113. Up to 3146 conditions per place. [2022-11-16 11:20:10,632 INFO L137 encePairwiseOnDemand]: 129/144 looper letters, 29 selfloop transitions, 5 changer transitions 0/149 dead transitions. [2022-11-16 11:20:10,632 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 152 places, 149 transitions, 387 flow [2022-11-16 11:20:10,634 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 11:20:10,637 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 11:20:10,652 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 403 transitions. [2022-11-16 11:20:10,658 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9328703703703703 [2022-11-16 11:20:10,659 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 403 transitions. [2022-11-16 11:20:10,660 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 403 transitions. [2022-11-16 11:20:10,665 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:20:10,668 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 403 transitions. [2022-11-16 11:20:10,675 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 134.33333333333334) internal successors, (403), 3 states have internal predecessors, (403), 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) [2022-11-16 11:20:10,687 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 144.0) internal successors, (576), 4 states have internal predecessors, (576), 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) [2022-11-16 11:20:10,688 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 144.0) internal successors, (576), 4 states have internal predecessors, (576), 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) [2022-11-16 11:20:10,691 INFO L175 Difference]: Start difference. First operand has 151 places, 140 transitions, 292 flow. Second operand 3 states and 403 transitions. [2022-11-16 11:20:10,692 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 152 places, 149 transitions, 387 flow [2022-11-16 11:20:10,696 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 148 places, 149 transitions, 380 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-11-16 11:20:10,702 INFO L231 Difference]: Finished difference. Result has 149 places, 141 transitions, 329 flow [2022-11-16 11:20:10,705 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=144, PETRI_DIFFERENCE_MINUEND_FLOW=282, PETRI_DIFFERENCE_MINUEND_PLACES=146, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=137, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=132, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=329, PETRI_PLACES=149, PETRI_TRANSITIONS=141} [2022-11-16 11:20:10,710 INFO L288 CegarLoopForPetriNet]: 151 programPoint places, -2 predicate places. [2022-11-16 11:20:10,711 INFO L495 AbstractCegarLoop]: Abstraction has has 149 places, 141 transitions, 329 flow [2022-11-16 11:20:10,712 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 120.0) internal successors, (360), 3 states have internal predecessors, (360), 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) [2022-11-16 11:20:10,712 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:20:10,713 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:20:10,713 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-16 11:20:10,713 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2022-11-16 11:20:10,714 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:20:10,714 INFO L85 PathProgramCache]: Analyzing trace with hash -1028765357, now seen corresponding path program 1 times [2022-11-16 11:20:10,715 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:20:10,715 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1255002017] [2022-11-16 11:20:10,715 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:20:10,716 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:20:10,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:20:10,905 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:20:10,906 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:20:10,906 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1255002017] [2022-11-16 11:20:10,906 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1255002017] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:20:10,907 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:20:10,907 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 11:20:10,907 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [234678461] [2022-11-16 11:20:10,908 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:20:10,909 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-16 11:20:10,910 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:20:10,910 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-16 11:20:10,911 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-16 11:20:10,912 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 119 out of 144 [2022-11-16 11:20:10,913 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 149 places, 141 transitions, 329 flow. Second operand has 4 states, 4 states have (on average 120.25) internal successors, (481), 4 states have internal predecessors, (481), 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) [2022-11-16 11:20:10,913 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:20:10,913 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 119 of 144 [2022-11-16 11:20:10,913 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:20:11,787 INFO L130 PetriNetUnfolder]: 1230/2552 cut-off events. [2022-11-16 11:20:11,788 INFO L131 PetriNetUnfolder]: For 51/51 co-relation queries the response was YES. [2022-11-16 11:20:11,801 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5782 conditions, 2552 events. 1230/2552 cut-off events. For 51/51 co-relation queries the response was YES. Maximal size of possible extension queue 282. Compared 19805 event pairs, 161 based on Foata normal form. 0/1919 useless extension candidates. Maximal degree in co-relation 5723. Up to 1142 conditions per place. [2022-11-16 11:20:11,832 INFO L137 encePairwiseOnDemand]: 131/144 looper letters, 36 selfloop transitions, 13 changer transitions 0/164 dead transitions. [2022-11-16 11:20:11,833 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 152 places, 164 transitions, 499 flow [2022-11-16 11:20:11,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-16 11:20:11,834 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-11-16 11:20:11,835 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 529 transitions. [2022-11-16 11:20:11,836 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9184027777777778 [2022-11-16 11:20:11,836 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 529 transitions. [2022-11-16 11:20:11,836 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 529 transitions. [2022-11-16 11:20:11,837 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:20:11,837 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 529 transitions. [2022-11-16 11:20:11,840 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 132.25) internal successors, (529), 4 states have internal predecessors, (529), 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) [2022-11-16 11:20:11,843 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 144.0) internal successors, (720), 5 states have internal predecessors, (720), 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) [2022-11-16 11:20:11,844 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 144.0) internal successors, (720), 5 states have internal predecessors, (720), 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) [2022-11-16 11:20:11,844 INFO L175 Difference]: Start difference. First operand has 149 places, 141 transitions, 329 flow. Second operand 4 states and 529 transitions. [2022-11-16 11:20:11,844 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 152 places, 164 transitions, 499 flow [2022-11-16 11:20:11,850 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 151 places, 164 transitions, 494 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-16 11:20:11,854 INFO L231 Difference]: Finished difference. Result has 153 places, 149 transitions, 427 flow [2022-11-16 11:20:11,855 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=144, PETRI_DIFFERENCE_MINUEND_FLOW=324, PETRI_DIFFERENCE_MINUEND_PLACES=148, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=141, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=128, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=427, PETRI_PLACES=153, PETRI_TRANSITIONS=149} [2022-11-16 11:20:11,857 INFO L288 CegarLoopForPetriNet]: 151 programPoint places, 2 predicate places. [2022-11-16 11:20:11,857 INFO L495 AbstractCegarLoop]: Abstraction has has 153 places, 149 transitions, 427 flow [2022-11-16 11:20:11,858 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 120.25) internal successors, (481), 4 states have internal predecessors, (481), 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) [2022-11-16 11:20:11,858 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:20:11,859 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:20:11,859 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-16 11:20:11,859 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2022-11-16 11:20:11,861 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:20:11,861 INFO L85 PathProgramCache]: Analyzing trace with hash -1899979076, now seen corresponding path program 1 times [2022-11-16 11:20:11,861 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:20:11,862 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1309030346] [2022-11-16 11:20:11,862 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:20:11,862 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:20:11,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:20:12,115 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:20:12,117 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:20:12,119 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1309030346] [2022-11-16 11:20:12,119 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1309030346] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:20:12,120 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:20:12,121 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 11:20:12,121 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [686996013] [2022-11-16 11:20:12,121 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:20:12,122 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-16 11:20:12,124 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:20:12,125 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-16 11:20:12,126 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-16 11:20:12,128 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 119 out of 144 [2022-11-16 11:20:12,130 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 153 places, 149 transitions, 427 flow. Second operand has 4 states, 4 states have (on average 120.25) internal successors, (481), 4 states have internal predecessors, (481), 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) [2022-11-16 11:20:12,131 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:20:12,131 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 119 of 144 [2022-11-16 11:20:12,131 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:20:12,557 INFO L130 PetriNetUnfolder]: 472/1148 cut-off events. [2022-11-16 11:20:12,557 INFO L131 PetriNetUnfolder]: For 596/596 co-relation queries the response was YES. [2022-11-16 11:20:12,565 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2841 conditions, 1148 events. 472/1148 cut-off events. For 596/596 co-relation queries the response was YES. Maximal size of possible extension queue 95. Compared 7479 event pairs, 50 based on Foata normal form. 226/1243 useless extension candidates. Maximal degree in co-relation 2779. Up to 691 conditions per place. [2022-11-16 11:20:12,578 INFO L137 encePairwiseOnDemand]: 135/144 looper letters, 29 selfloop transitions, 5 changer transitions 0/149 dead transitions. [2022-11-16 11:20:12,579 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 152 places, 149 transitions, 461 flow [2022-11-16 11:20:12,583 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-16 11:20:12,585 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-11-16 11:20:12,587 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 510 transitions. [2022-11-16 11:20:12,588 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8854166666666666 [2022-11-16 11:20:12,588 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 510 transitions. [2022-11-16 11:20:12,588 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 510 transitions. [2022-11-16 11:20:12,589 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:20:12,589 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 510 transitions. [2022-11-16 11:20:12,591 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 127.5) internal successors, (510), 4 states have internal predecessors, (510), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:20:12,593 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 144.0) internal successors, (720), 5 states have internal predecessors, (720), 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) [2022-11-16 11:20:12,594 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 144.0) internal successors, (720), 5 states have internal predecessors, (720), 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) [2022-11-16 11:20:12,594 INFO L175 Difference]: Start difference. First operand has 153 places, 149 transitions, 427 flow. Second operand 4 states and 510 transitions. [2022-11-16 11:20:12,594 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 152 places, 149 transitions, 461 flow [2022-11-16 11:20:12,614 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 149 places, 149 transitions, 438 flow, removed 4 selfloop flow, removed 3 redundant places. [2022-11-16 11:20:12,618 INFO L231 Difference]: Finished difference. Result has 149 places, 141 transitions, 358 flow [2022-11-16 11:20:12,618 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=144, PETRI_DIFFERENCE_MINUEND_FLOW=348, PETRI_DIFFERENCE_MINUEND_PLACES=146, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=141, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=136, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=358, PETRI_PLACES=149, PETRI_TRANSITIONS=141} [2022-11-16 11:20:12,620 INFO L288 CegarLoopForPetriNet]: 151 programPoint places, -2 predicate places. [2022-11-16 11:20:12,620 INFO L495 AbstractCegarLoop]: Abstraction has has 149 places, 141 transitions, 358 flow [2022-11-16 11:20:12,621 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 120.25) internal successors, (481), 4 states have internal predecessors, (481), 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) [2022-11-16 11:20:12,621 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:20:12,621 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:20:12,622 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-16 11:20:12,622 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2022-11-16 11:20:12,623 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:20:12,623 INFO L85 PathProgramCache]: Analyzing trace with hash -499233017, now seen corresponding path program 1 times [2022-11-16 11:20:12,623 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:20:12,624 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [181511] [2022-11-16 11:20:12,624 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:20:12,624 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:20:12,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:20:12,853 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:20:12,854 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:20:12,854 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [181511] [2022-11-16 11:20:12,854 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [181511] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:20:12,855 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:20:12,855 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-16 11:20:12,855 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1181691789] [2022-11-16 11:20:12,856 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:20:12,856 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-16 11:20:12,856 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:20:12,857 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-16 11:20:12,857 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-11-16 11:20:12,858 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 119 out of 144 [2022-11-16 11:20:12,860 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 149 places, 141 transitions, 358 flow. Second operand has 5 states, 5 states have (on average 120.6) internal successors, (603), 5 states have internal predecessors, (603), 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) [2022-11-16 11:20:12,860 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:20:12,860 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 119 of 144 [2022-11-16 11:20:12,860 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:20:13,216 INFO L130 PetriNetUnfolder]: 334/908 cut-off events. [2022-11-16 11:20:13,216 INFO L131 PetriNetUnfolder]: For 390/390 co-relation queries the response was YES. [2022-11-16 11:20:13,222 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1931 conditions, 908 events. 334/908 cut-off events. For 390/390 co-relation queries the response was YES. Maximal size of possible extension queue 69. Compared 5491 event pairs, 17 based on Foata normal form. 0/879 useless extension candidates. Maximal degree in co-relation 1870. Up to 203 conditions per place. [2022-11-16 11:20:13,236 INFO L137 encePairwiseOnDemand]: 135/144 looper letters, 34 selfloop transitions, 13 changer transitions 4/166 dead transitions. [2022-11-16 11:20:13,236 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 153 places, 166 transitions, 538 flow [2022-11-16 11:20:13,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-16 11:20:13,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-11-16 11:20:13,239 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 650 transitions. [2022-11-16 11:20:13,241 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9027777777777778 [2022-11-16 11:20:13,245 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 650 transitions. [2022-11-16 11:20:13,246 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 650 transitions. [2022-11-16 11:20:13,246 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:20:13,246 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 650 transitions. [2022-11-16 11:20:13,249 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 130.0) internal successors, (650), 5 states have internal predecessors, (650), 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) [2022-11-16 11:20:13,251 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 144.0) internal successors, (864), 6 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) [2022-11-16 11:20:13,253 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 144.0) internal successors, (864), 6 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) [2022-11-16 11:20:13,254 INFO L175 Difference]: Start difference. First operand has 149 places, 141 transitions, 358 flow. Second operand 5 states and 650 transitions. [2022-11-16 11:20:13,254 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 153 places, 166 transitions, 538 flow [2022-11-16 11:20:13,261 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 151 places, 166 transitions, 532 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-16 11:20:13,264 INFO L231 Difference]: Finished difference. Result has 152 places, 141 transitions, 394 flow [2022-11-16 11:20:13,265 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=144, PETRI_DIFFERENCE_MINUEND_FLOW=352, PETRI_DIFFERENCE_MINUEND_PLACES=147, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=141, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=128, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=394, PETRI_PLACES=152, PETRI_TRANSITIONS=141} [2022-11-16 11:20:13,267 INFO L288 CegarLoopForPetriNet]: 151 programPoint places, 1 predicate places. [2022-11-16 11:20:13,267 INFO L495 AbstractCegarLoop]: Abstraction has has 152 places, 141 transitions, 394 flow [2022-11-16 11:20:13,268 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 120.6) internal successors, (603), 5 states have internal predecessors, (603), 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) [2022-11-16 11:20:13,268 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:20:13,268 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:20:13,269 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-16 11:20:13,269 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting P3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2022-11-16 11:20:13,269 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:20:13,270 INFO L85 PathProgramCache]: Analyzing trace with hash -1602273831, now seen corresponding path program 1 times [2022-11-16 11:20:13,270 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:20:13,271 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [560642668] [2022-11-16 11:20:13,272 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:20:13,272 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:20:13,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:20:13,656 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:20:13,656 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:20:13,657 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [560642668] [2022-11-16 11:20:13,657 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [560642668] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:20:13,657 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:20:13,658 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 11:20:13,658 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [761844753] [2022-11-16 11:20:13,658 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:20:13,659 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 11:20:13,660 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:20:13,660 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 11:20:13,661 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-16 11:20:13,662 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 119 out of 144 [2022-11-16 11:20:13,663 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 152 places, 141 transitions, 394 flow. Second operand has 6 states, 6 states have (on average 121.0) internal successors, (726), 6 states have internal predecessors, (726), 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) [2022-11-16 11:20:13,664 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:20:13,664 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 119 of 144 [2022-11-16 11:20:13,664 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:20:13,978 INFO L130 PetriNetUnfolder]: 315/922 cut-off events. [2022-11-16 11:20:13,978 INFO L131 PetriNetUnfolder]: For 897/897 co-relation queries the response was YES. [2022-11-16 11:20:13,984 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2167 conditions, 922 events. 315/922 cut-off events. For 897/897 co-relation queries the response was YES. Maximal size of possible extension queue 66. Compared 5518 event pairs, 55 based on Foata normal form. 12/897 useless extension candidates. Maximal degree in co-relation 2105. Up to 191 conditions per place. [2022-11-16 11:20:13,985 INFO L137 encePairwiseOnDemand]: 135/144 looper letters, 0 selfloop transitions, 0 changer transitions 158/158 dead transitions. [2022-11-16 11:20:13,986 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 153 places, 158 transitions, 502 flow [2022-11-16 11:20:13,986 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-16 11:20:13,986 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-16 11:20:14,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 761 transitions. [2022-11-16 11:20:14,029 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8807870370370371 [2022-11-16 11:20:14,030 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 761 transitions. [2022-11-16 11:20:14,030 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 761 transitions. [2022-11-16 11:20:14,030 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:20:14,030 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 761 transitions. [2022-11-16 11:20:14,033 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 126.83333333333333) internal successors, (761), 6 states have internal predecessors, (761), 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) [2022-11-16 11:20:14,034 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 144.0) internal successors, (1008), 7 states have internal predecessors, (1008), 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) [2022-11-16 11:20:14,036 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 144.0) internal successors, (1008), 7 states have internal predecessors, (1008), 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) [2022-11-16 11:20:14,036 INFO L175 Difference]: Start difference. First operand has 152 places, 141 transitions, 394 flow. Second operand 6 states and 761 transitions. [2022-11-16 11:20:14,037 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 153 places, 158 transitions, 502 flow [2022-11-16 11:20:14,044 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 147 places, 158 transitions, 447 flow, removed 8 selfloop flow, removed 6 redundant places. [2022-11-16 11:20:14,045 INFO L231 Difference]: Finished difference. Result has 147 places, 0 transitions, 0 flow [2022-11-16 11:20:14,045 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=144, PETRI_DIFFERENCE_MINUEND_FLOW=307, PETRI_DIFFERENCE_MINUEND_PLACES=142, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=137, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=137, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=0, PETRI_PLACES=147, PETRI_TRANSITIONS=0} [2022-11-16 11:20:14,049 INFO L288 CegarLoopForPetriNet]: 151 programPoint places, -4 predicate places. [2022-11-16 11:20:14,050 INFO L495 AbstractCegarLoop]: Abstraction has has 147 places, 0 transitions, 0 flow [2022-11-16 11:20:14,051 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 121.0) internal successors, (726), 6 states have internal predecessors, (726), 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) [2022-11-16 11:20:14,054 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 20 remaining) [2022-11-16 11:20:14,055 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 20 remaining) [2022-11-16 11:20:14,055 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 20 remaining) [2022-11-16 11:20:14,056 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 20 remaining) [2022-11-16 11:20:14,056 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 20 remaining) [2022-11-16 11:20:14,056 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 20 remaining) [2022-11-16 11:20:14,056 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 20 remaining) [2022-11-16 11:20:14,057 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 20 remaining) [2022-11-16 11:20:14,057 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (11 of 20 remaining) [2022-11-16 11:20:14,057 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (10 of 20 remaining) [2022-11-16 11:20:14,058 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (9 of 20 remaining) [2022-11-16 11:20:14,058 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 20 remaining) [2022-11-16 11:20:14,058 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 20 remaining) [2022-11-16 11:20:14,059 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 20 remaining) [2022-11-16 11:20:14,059 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 20 remaining) [2022-11-16 11:20:14,060 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 20 remaining) [2022-11-16 11:20:14,060 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 20 remaining) [2022-11-16 11:20:14,061 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 20 remaining) [2022-11-16 11:20:14,066 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 20 remaining) [2022-11-16 11:20:14,066 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 20 remaining) [2022-11-16 11:20:14,067 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-16 11:20:14,067 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2022-11-16 11:20:14,075 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-16 11:20:14,075 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-16 11:20:14,081 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.11 11:20:14 BasicIcfg [2022-11-16 11:20:14,082 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-16 11:20:14,082 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-16 11:20:14,082 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-16 11:20:14,083 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-16 11:20:14,083 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 11:20:07" (3/4) ... [2022-11-16 11:20:14,089 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-16 11:20:14,094 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2022-11-16 11:20:14,095 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2022-11-16 11:20:14,095 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2022-11-16 11:20:14,095 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P3 [2022-11-16 11:20:14,103 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 22 nodes and edges [2022-11-16 11:20:14,104 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2022-11-16 11:20:14,104 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-11-16 11:20:14,104 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-16 11:20:14,170 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7d0e3a0-3bb6-4745-bfb7-474cbd2a30a7/bin/uautomizer-tPACEb0tL8/witness.graphml [2022-11-16 11:20:14,171 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-16 11:20:14,173 INFO L158 Benchmark]: Toolchain (without parser) took 8257.62ms. Allocated memory was 104.9MB in the beginning and 350.2MB in the end (delta: 245.4MB). Free memory was 73.5MB in the beginning and 253.5MB in the end (delta: -180.0MB). Peak memory consumption was 65.2MB. Max. memory is 16.1GB. [2022-11-16 11:20:14,173 INFO L158 Benchmark]: CDTParser took 0.39ms. Allocated memory is still 104.9MB. Free memory is still 58.5MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-16 11:20:14,173 INFO L158 Benchmark]: CACSL2BoogieTranslator took 806.98ms. Allocated memory is still 104.9MB. Free memory was 73.2MB in the beginning and 66.9MB in the end (delta: 6.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-11-16 11:20:14,174 INFO L158 Benchmark]: Boogie Procedure Inliner took 113.09ms. Allocated memory is still 104.9MB. Free memory was 66.9MB in the beginning and 64.6MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-16 11:20:14,174 INFO L158 Benchmark]: Boogie Preprocessor took 42.57ms. Allocated memory is still 104.9MB. Free memory was 64.6MB in the beginning and 62.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-16 11:20:14,175 INFO L158 Benchmark]: RCFGBuilder took 956.40ms. Allocated memory was 104.9MB in the beginning and 142.6MB in the end (delta: 37.7MB). Free memory was 62.4MB in the beginning and 98.6MB in the end (delta: -36.1MB). Peak memory consumption was 24.5MB. Max. memory is 16.1GB. [2022-11-16 11:20:14,175 INFO L158 Benchmark]: TraceAbstraction took 6240.96ms. Allocated memory was 142.6MB in the beginning and 350.2MB in the end (delta: 207.6MB). Free memory was 97.9MB in the beginning and 256.6MB in the end (delta: -158.7MB). Peak memory consumption was 225.7MB. Max. memory is 16.1GB. [2022-11-16 11:20:14,175 INFO L158 Benchmark]: Witness Printer took 89.45ms. Allocated memory is still 350.2MB. Free memory was 256.6MB in the beginning and 253.5MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-16 11:20:14,179 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.39ms. Allocated memory is still 104.9MB. Free memory is still 58.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 806.98ms. Allocated memory is still 104.9MB. Free memory was 73.2MB in the beginning and 66.9MB in the end (delta: 6.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 113.09ms. Allocated memory is still 104.9MB. Free memory was 66.9MB in the beginning and 64.6MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 42.57ms. Allocated memory is still 104.9MB. Free memory was 64.6MB in the beginning and 62.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 956.40ms. Allocated memory was 104.9MB in the beginning and 142.6MB in the end (delta: 37.7MB). Free memory was 62.4MB in the beginning and 98.6MB in the end (delta: -36.1MB). Peak memory consumption was 24.5MB. Max. memory is 16.1GB. * TraceAbstraction took 6240.96ms. Allocated memory was 142.6MB in the beginning and 350.2MB in the end (delta: 207.6MB). Free memory was 97.9MB in the beginning and 256.6MB in the end (delta: -158.7MB). Peak memory consumption was 225.7MB. Max. memory is 16.1GB. * Witness Printer took 89.45ms. Allocated memory is still 350.2MB. Free memory was 256.6MB in the beginning and 253.5MB 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: - PositiveResult [Line: 764]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 764]: 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: 779]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 807]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 807]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 843]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 843]: 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, 186 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: 6.1s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 4.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.2s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 113 SdHoareTripleChecker+Valid, 0.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 113 mSDsluCounter, 17 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 57 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 251 IncrementalHoareTripleChecker+Invalid, 308 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 57 mSolverCounterUnsat, 17 mSDtfsCounter, 251 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 17 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=427occurred in iteration=2, 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, 0.2s SatisfiabilityAnalysisTime, 1.2s InterpolantComputationTime, 350 NumberOfCodeBlocks, 350 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 345 ConstructedInterpolants, 0 QuantifiedInterpolants, 705 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! [2022-11-16 11:20:14,220 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7d0e3a0-3bb6-4745-bfb7-474cbd2a30a7/bin/uautomizer-tPACEb0tL8/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