./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/pthread-wmm/safe003_power.opt.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 4e7fbc69 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_313563c5-4a13-4b25-8232-97227ca1b137/bin/uautomizer-QkZJyEgLgS/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_313563c5-4a13-4b25-8232-97227ca1b137/bin/uautomizer-QkZJyEgLgS/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_313563c5-4a13-4b25-8232-97227ca1b137/bin/uautomizer-QkZJyEgLgS/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_313563c5-4a13-4b25-8232-97227ca1b137/bin/uautomizer-QkZJyEgLgS/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-wmm/safe003_power.opt.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_313563c5-4a13-4b25-8232-97227ca1b137/bin/uautomizer-QkZJyEgLgS/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_313563c5-4a13-4b25-8232-97227ca1b137/bin/uautomizer-QkZJyEgLgS --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 91a9aa2f0d12b9c007fce98740577392f81daf83caae08bbaade32d740f10d38 --- 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-4e7fbc6 [2022-11-23 03:08:10,509 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-23 03:08:10,512 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-23 03:08:10,563 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-23 03:08:10,563 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-23 03:08:10,568 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-23 03:08:10,571 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-23 03:08:10,575 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-23 03:08:10,579 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-23 03:08:10,586 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-23 03:08:10,588 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-23 03:08:10,590 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-23 03:08:10,591 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-23 03:08:10,594 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-23 03:08:10,596 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-23 03:08:10,601 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-23 03:08:10,602 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-23 03:08:10,604 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-23 03:08:10,606 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-23 03:08:10,613 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-23 03:08:10,616 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-23 03:08:10,619 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-23 03:08:10,621 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-23 03:08:10,622 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-23 03:08:10,634 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-23 03:08:10,636 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-23 03:08:10,636 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-23 03:08:10,639 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-23 03:08:10,639 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-23 03:08:10,640 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-23 03:08:10,641 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-23 03:08:10,642 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-23 03:08:10,644 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-23 03:08:10,646 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-23 03:08:10,647 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-23 03:08:10,648 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-23 03:08:10,649 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-23 03:08:10,649 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-23 03:08:10,650 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-23 03:08:10,652 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-23 03:08:10,653 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-23 03:08:10,654 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_313563c5-4a13-4b25-8232-97227ca1b137/bin/uautomizer-QkZJyEgLgS/config/svcomp-Overflow-32bit-Automizer_Default.epf [2022-11-23 03:08:10,704 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-23 03:08:10,705 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-23 03:08:10,706 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-23 03:08:10,706 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-23 03:08:10,707 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-23 03:08:10,708 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-23 03:08:10,709 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-23 03:08:10,709 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-23 03:08:10,709 INFO L138 SettingsManager]: * Use SBE=true [2022-11-23 03:08:10,710 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-23 03:08:10,711 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-23 03:08:10,712 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-23 03:08:10,712 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-23 03:08:10,712 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-23 03:08:10,713 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-23 03:08:10,713 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-23 03:08:10,713 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-23 03:08:10,713 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-23 03:08:10,714 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-23 03:08:10,714 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-23 03:08:10,714 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-23 03:08:10,715 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-23 03:08:10,715 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-23 03:08:10,715 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-23 03:08:10,716 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-23 03:08:10,716 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-23 03:08:10,716 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 03:08:10,717 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-23 03:08:10,717 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-23 03:08:10,717 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-23 03:08:10,718 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-23 03:08:10,718 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-23 03:08:10,719 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-23 03:08:10,719 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-23 03:08:10,719 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-11-23 03:08:10,719 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-23 03:08:10,720 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_313563c5-4a13-4b25-8232-97227ca1b137/bin/uautomizer-QkZJyEgLgS/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_313563c5-4a13-4b25-8232-97227ca1b137/bin/uautomizer-QkZJyEgLgS Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 91a9aa2f0d12b9c007fce98740577392f81daf83caae08bbaade32d740f10d38 [2022-11-23 03:08:11,068 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-23 03:08:11,112 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-23 03:08:11,116 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-23 03:08:11,117 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-23 03:08:11,118 INFO L275 PluginConnector]: CDTParser initialized [2022-11-23 03:08:11,119 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_313563c5-4a13-4b25-8232-97227ca1b137/bin/uautomizer-QkZJyEgLgS/../../sv-benchmarks/c/pthread-wmm/safe003_power.opt.i [2022-11-23 03:08:14,332 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-23 03:08:14,634 INFO L351 CDTParser]: Found 1 translation units. [2022-11-23 03:08:14,643 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_313563c5-4a13-4b25-8232-97227ca1b137/sv-benchmarks/c/pthread-wmm/safe003_power.opt.i [2022-11-23 03:08:14,657 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_313563c5-4a13-4b25-8232-97227ca1b137/bin/uautomizer-QkZJyEgLgS/data/f3e38320e/39169714296b4cda90749092dc5157e7/FLAG68689028b [2022-11-23 03:08:14,674 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_313563c5-4a13-4b25-8232-97227ca1b137/bin/uautomizer-QkZJyEgLgS/data/f3e38320e/39169714296b4cda90749092dc5157e7 [2022-11-23 03:08:14,681 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-23 03:08:14,683 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-23 03:08:14,686 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-23 03:08:14,687 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-23 03:08:14,691 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-23 03:08:14,691 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:08:14" (1/1) ... [2022-11-23 03:08:14,693 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6927c08c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:08:14, skipping insertion in model container [2022-11-23 03:08:14,694 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:08:14" (1/1) ... [2022-11-23 03:08:14,703 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-23 03:08:14,770 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-23 03:08:14,940 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_313563c5-4a13-4b25-8232-97227ca1b137/sv-benchmarks/c/pthread-wmm/safe003_power.opt.i[951,964] [2022-11-23 03:08:15,261 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 03:08:15,274 INFO L203 MainTranslator]: Completed pre-run [2022-11-23 03:08:15,288 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_313563c5-4a13-4b25-8232-97227ca1b137/sv-benchmarks/c/pthread-wmm/safe003_power.opt.i[951,964] [2022-11-23 03:08:15,343 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 03:08:15,385 INFO L208 MainTranslator]: Completed translation [2022-11-23 03:08:15,385 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:08:15 WrapperNode [2022-11-23 03:08:15,385 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-23 03:08:15,387 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-23 03:08:15,387 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-23 03:08:15,387 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-23 03:08:15,396 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:08:15" (1/1) ... [2022-11-23 03:08:15,423 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:08:15" (1/1) ... [2022-11-23 03:08:15,472 INFO L138 Inliner]: procedures = 176, calls = 73, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 182 [2022-11-23 03:08:15,473 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-23 03:08:15,474 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-23 03:08:15,474 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-23 03:08:15,474 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-23 03:08:15,486 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:08:15" (1/1) ... [2022-11-23 03:08:15,487 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:08:15" (1/1) ... [2022-11-23 03:08:15,492 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:08:15" (1/1) ... [2022-11-23 03:08:15,492 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:08:15" (1/1) ... [2022-11-23 03:08:15,509 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:08:15" (1/1) ... [2022-11-23 03:08:15,513 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:08:15" (1/1) ... [2022-11-23 03:08:15,516 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:08:15" (1/1) ... [2022-11-23 03:08:15,518 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:08:15" (1/1) ... [2022-11-23 03:08:15,523 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-23 03:08:15,524 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-23 03:08:15,524 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-23 03:08:15,524 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-23 03:08:15,525 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:08:15" (1/1) ... [2022-11-23 03:08:15,533 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 03:08:15,548 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_313563c5-4a13-4b25-8232-97227ca1b137/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 03:08:15,569 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_313563c5-4a13-4b25-8232-97227ca1b137/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-23 03:08:15,611 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_313563c5-4a13-4b25-8232-97227ca1b137/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-23 03:08:15,641 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-23 03:08:15,641 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-23 03:08:15,642 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-11-23 03:08:15,644 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-23 03:08:15,645 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-23 03:08:15,646 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-23 03:08:15,646 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2022-11-23 03:08:15,646 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2022-11-23 03:08:15,646 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2022-11-23 03:08:15,647 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2022-11-23 03:08:15,647 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2022-11-23 03:08:15,647 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2022-11-23 03:08:15,647 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-23 03:08:15,648 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-11-23 03:08:15,648 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-23 03:08:15,648 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-23 03:08:15,650 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-23 03:08:15,982 INFO L235 CfgBuilder]: Building ICFG [2022-11-23 03:08:15,984 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-23 03:08:16,700 INFO L276 CfgBuilder]: Performing block encoding [2022-11-23 03:08:17,104 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-23 03:08:17,104 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-23 03:08:17,107 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:08:17 BoogieIcfgContainer [2022-11-23 03:08:17,108 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-23 03:08:17,112 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-23 03:08:17,113 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-23 03:08:17,117 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-23 03:08:17,117 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 03:08:14" (1/3) ... [2022-11-23 03:08:17,120 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@184f9353 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 03:08:17, skipping insertion in model container [2022-11-23 03:08:17,120 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:08:15" (2/3) ... [2022-11-23 03:08:17,122 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@184f9353 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 03:08:17, skipping insertion in model container [2022-11-23 03:08:17,122 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:08:17" (3/3) ... [2022-11-23 03:08:17,124 INFO L112 eAbstractionObserver]: Analyzing ICFG safe003_power.opt.i [2022-11-23 03:08:17,136 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-23 03:08:17,150 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-23 03:08:17,151 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2022-11-23 03:08:17,151 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-23 03:08:17,266 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-11-23 03:08:17,332 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 146 places, 138 transitions, 291 flow [2022-11-23 03:08:17,451 INFO L130 PetriNetUnfolder]: 2/135 cut-off events. [2022-11-23 03:08:17,451 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-23 03:08:17,459 INFO L83 FinitePrefix]: Finished finitePrefix Result has 145 conditions, 135 events. 2/135 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 68 event pairs, 0 based on Foata normal form. 0/127 useless extension candidates. Maximal degree in co-relation 77. Up to 2 conditions per place. [2022-11-23 03:08:17,460 INFO L82 GeneralOperation]: Start removeDead. Operand has 146 places, 138 transitions, 291 flow [2022-11-23 03:08:17,471 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 143 places, 135 transitions, 279 flow [2022-11-23 03:08:17,476 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-23 03:08:17,513 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 143 places, 135 transitions, 279 flow [2022-11-23 03:08:17,526 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 143 places, 135 transitions, 279 flow [2022-11-23 03:08:17,528 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 143 places, 135 transitions, 279 flow [2022-11-23 03:08:17,586 INFO L130 PetriNetUnfolder]: 2/135 cut-off events. [2022-11-23 03:08:17,588 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-23 03:08:17,589 INFO L83 FinitePrefix]: Finished finitePrefix Result has 145 conditions, 135 events. 2/135 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 68 event pairs, 0 based on Foata normal form. 0/127 useless extension candidates. Maximal degree in co-relation 77. Up to 2 conditions per place. [2022-11-23 03:08:17,593 INFO L119 LiptonReduction]: Number of co-enabled transitions 2592 [2022-11-23 03:08:32,280 INFO L134 LiptonReduction]: Checked pairs total: 8563 [2022-11-23 03:08:32,280 INFO L136 LiptonReduction]: Total number of compositions: 121 [2022-11-23 03:08:32,325 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-23 03:08:32,336 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;@50671fde, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-23 03:08:32,336 INFO L358 AbstractCegarLoop]: Starting to check reachability of 15 error locations. [2022-11-23 03:08:32,343 INFO L130 PetriNetUnfolder]: 0/7 cut-off events. [2022-11-23 03:08:32,344 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-23 03:08:32,344 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-23 03:08:32,345 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2022-11-23 03:08:32,346 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-11-23 03:08:32,354 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:08:32,354 INFO L85 PathProgramCache]: Analyzing trace with hash 834205929, now seen corresponding path program 1 times [2022-11-23 03:08:32,366 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:08:32,366 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1774855115] [2022-11-23 03:08:32,367 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:08:32,368 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:08:32,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:08:32,805 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:08:32,805 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:08:32,805 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1774855115] [2022-11-23 03:08:32,806 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1774855115] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 03:08:32,806 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 03:08:32,806 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-23 03:08:32,808 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [296018346] [2022-11-23 03:08:32,809 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 03:08:32,816 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 03:08:32,816 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:08:32,841 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 03:08:32,844 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 03:08:32,895 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 115 out of 259 [2022-11-23 03:08:32,898 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 37 places, 28 transitions, 65 flow. Second operand has 3 states, 3 states have (on average 116.66666666666667) internal successors, (350), 3 states have internal predecessors, (350), 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) [2022-11-23 03:08:32,898 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-23 03:08:32,899 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 115 of 259 [2022-11-23 03:08:32,900 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-23 03:08:33,703 INFO L130 PetriNetUnfolder]: 1117/1755 cut-off events. [2022-11-23 03:08:33,704 INFO L131 PetriNetUnfolder]: For 19/19 co-relation queries the response was YES. [2022-11-23 03:08:33,712 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3548 conditions, 1755 events. 1117/1755 cut-off events. For 19/19 co-relation queries the response was YES. Maximal size of possible extension queue 119. Compared 8660 event pairs, 381 based on Foata normal form. 0/1449 useless extension candidates. Maximal degree in co-relation 3537. Up to 1247 conditions per place. [2022-11-23 03:08:33,728 INFO L137 encePairwiseOnDemand]: 248/259 looper letters, 38 selfloop transitions, 4 changer transitions 0/44 dead transitions. [2022-11-23 03:08:33,728 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 39 places, 44 transitions, 187 flow [2022-11-23 03:08:33,729 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 03:08:33,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-23 03:08:33,742 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 395 transitions. [2022-11-23 03:08:33,745 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5083655083655083 [2022-11-23 03:08:33,746 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 395 transitions. [2022-11-23 03:08:33,747 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 395 transitions. [2022-11-23 03:08:33,749 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-23 03:08:33,752 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 395 transitions. [2022-11-23 03:08:33,761 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 131.66666666666666) internal successors, (395), 3 states have internal predecessors, (395), 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) [2022-11-23 03:08:33,776 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 259.0) internal successors, (1036), 4 states have internal predecessors, (1036), 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) [2022-11-23 03:08:33,777 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 259.0) internal successors, (1036), 4 states have internal predecessors, (1036), 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) [2022-11-23 03:08:33,779 INFO L175 Difference]: Start difference. First operand has 37 places, 28 transitions, 65 flow. Second operand 3 states and 395 transitions. [2022-11-23 03:08:33,781 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 39 places, 44 transitions, 187 flow [2022-11-23 03:08:33,787 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 36 places, 44 transitions, 182 flow, removed 0 selfloop flow, removed 3 redundant places. [2022-11-23 03:08:33,790 INFO L231 Difference]: Finished difference. Result has 37 places, 30 transitions, 96 flow [2022-11-23 03:08:33,792 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=259, PETRI_DIFFERENCE_MINUEND_FLOW=60, PETRI_DIFFERENCE_MINUEND_PLACES=34, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=27, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=96, PETRI_PLACES=37, PETRI_TRANSITIONS=30} [2022-11-23 03:08:33,799 INFO L288 CegarLoopForPetriNet]: 37 programPoint places, 0 predicate places. [2022-11-23 03:08:33,800 INFO L495 AbstractCegarLoop]: Abstraction has has 37 places, 30 transitions, 96 flow [2022-11-23 03:08:33,801 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 116.66666666666667) internal successors, (350), 3 states have internal predecessors, (350), 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) [2022-11-23 03:08:33,802 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-23 03:08:33,803 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 03:08:33,804 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-23 03:08:33,808 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-11-23 03:08:33,809 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:08:33,809 INFO L85 PathProgramCache]: Analyzing trace with hash 2142441395, now seen corresponding path program 1 times [2022-11-23 03:08:33,809 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:08:33,810 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [598688040] [2022-11-23 03:08:33,810 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:08:33,811 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:08:33,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:08:34,123 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:08:34,124 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:08:34,124 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [598688040] [2022-11-23 03:08:34,124 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [598688040] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 03:08:34,124 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 03:08:34,125 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-23 03:08:34,125 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [478750063] [2022-11-23 03:08:34,125 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 03:08:34,126 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-23 03:08:34,126 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:08:34,127 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-23 03:08:34,127 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-23 03:08:34,141 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 115 out of 259 [2022-11-23 03:08:34,142 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 37 places, 30 transitions, 96 flow. Second operand has 4 states, 4 states have (on average 117.5) internal successors, (470), 4 states have internal predecessors, (470), 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) [2022-11-23 03:08:34,142 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-23 03:08:34,142 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 115 of 259 [2022-11-23 03:08:34,142 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-23 03:08:34,683 INFO L130 PetriNetUnfolder]: 901/1407 cut-off events. [2022-11-23 03:08:34,683 INFO L131 PetriNetUnfolder]: For 127/152 co-relation queries the response was YES. [2022-11-23 03:08:34,686 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3384 conditions, 1407 events. 901/1407 cut-off events. For 127/152 co-relation queries the response was YES. Maximal size of possible extension queue 77. Compared 6432 event pairs, 333 based on Foata normal form. 130/1399 useless extension candidates. Maximal degree in co-relation 3373. Up to 898 conditions per place. [2022-11-23 03:08:34,693 INFO L137 encePairwiseOnDemand]: 252/259 looper letters, 35 selfloop transitions, 4 changer transitions 0/41 dead transitions. [2022-11-23 03:08:34,694 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 37 places, 41 transitions, 194 flow [2022-11-23 03:08:34,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-23 03:08:34,694 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-11-23 03:08:34,696 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 502 transitions. [2022-11-23 03:08:34,697 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.48455598455598453 [2022-11-23 03:08:34,697 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 502 transitions. [2022-11-23 03:08:34,697 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 502 transitions. [2022-11-23 03:08:34,698 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-23 03:08:34,698 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 502 transitions. [2022-11-23 03:08:34,700 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 125.5) internal successors, (502), 4 states have internal predecessors, (502), 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) [2022-11-23 03:08:34,703 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 259.0) internal successors, (1295), 5 states have internal predecessors, (1295), 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) [2022-11-23 03:08:34,704 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 259.0) internal successors, (1295), 5 states have internal predecessors, (1295), 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) [2022-11-23 03:08:34,704 INFO L175 Difference]: Start difference. First operand has 37 places, 30 transitions, 96 flow. Second operand 4 states and 502 transitions. [2022-11-23 03:08:34,704 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 37 places, 41 transitions, 194 flow [2022-11-23 03:08:34,706 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 36 places, 41 transitions, 190 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-23 03:08:34,707 INFO L231 Difference]: Finished difference. Result has 36 places, 27 transitions, 88 flow [2022-11-23 03:08:34,707 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=259, PETRI_DIFFERENCE_MINUEND_FLOW=80, PETRI_DIFFERENCE_MINUEND_PLACES=33, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=27, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=88, PETRI_PLACES=36, PETRI_TRANSITIONS=27} [2022-11-23 03:08:34,708 INFO L288 CegarLoopForPetriNet]: 37 programPoint places, -1 predicate places. [2022-11-23 03:08:34,709 INFO L495 AbstractCegarLoop]: Abstraction has has 36 places, 27 transitions, 88 flow [2022-11-23 03:08:34,709 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 117.5) internal successors, (470), 4 states have internal predecessors, (470), 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) [2022-11-23 03:08:34,709 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-23 03:08:34,710 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 03:08:34,710 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-23 03:08:34,710 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-11-23 03:08:34,711 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:08:34,711 INFO L85 PathProgramCache]: Analyzing trace with hash 1995636251, now seen corresponding path program 1 times [2022-11-23 03:08:34,711 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:08:34,712 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1614301504] [2022-11-23 03:08:34,712 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:08:34,712 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:08:34,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:08:34,884 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:08:34,884 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:08:34,885 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1614301504] [2022-11-23 03:08:34,885 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1614301504] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 03:08:34,885 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 03:08:34,885 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-23 03:08:34,886 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [758992544] [2022-11-23 03:08:34,886 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 03:08:34,886 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-23 03:08:34,886 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:08:34,887 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-23 03:08:34,887 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-23 03:08:34,897 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 115 out of 259 [2022-11-23 03:08:34,898 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 36 places, 27 transitions, 88 flow. Second operand has 4 states, 4 states have (on average 117.75) internal successors, (471), 4 states have internal predecessors, (471), 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) [2022-11-23 03:08:34,898 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-23 03:08:34,898 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 115 of 259 [2022-11-23 03:08:34,899 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-23 03:08:35,416 INFO L130 PetriNetUnfolder]: 736/1146 cut-off events. [2022-11-23 03:08:35,417 INFO L131 PetriNetUnfolder]: For 374/374 co-relation queries the response was YES. [2022-11-23 03:08:35,420 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2727 conditions, 1146 events. 736/1146 cut-off events. For 374/374 co-relation queries the response was YES. Maximal size of possible extension queue 73. Compared 5066 event pairs, 305 based on Foata normal form. 0/1116 useless extension candidates. Maximal degree in co-relation 2715. Up to 482 conditions per place. [2022-11-23 03:08:35,425 INFO L137 encePairwiseOnDemand]: 252/259 looper letters, 44 selfloop transitions, 7 changer transitions 3/56 dead transitions. [2022-11-23 03:08:35,425 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 39 places, 56 transitions, 266 flow [2022-11-23 03:08:35,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-23 03:08:35,425 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-11-23 03:08:35,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 517 transitions. [2022-11-23 03:08:35,427 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.49903474903474904 [2022-11-23 03:08:35,427 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 517 transitions. [2022-11-23 03:08:35,428 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 517 transitions. [2022-11-23 03:08:35,428 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-23 03:08:35,428 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 517 transitions. [2022-11-23 03:08:35,430 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 129.25) internal successors, (517), 4 states have internal predecessors, (517), 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) [2022-11-23 03:08:35,432 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 259.0) internal successors, (1295), 5 states have internal predecessors, (1295), 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) [2022-11-23 03:08:35,433 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 259.0) internal successors, (1295), 5 states have internal predecessors, (1295), 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) [2022-11-23 03:08:35,433 INFO L175 Difference]: Start difference. First operand has 36 places, 27 transitions, 88 flow. Second operand 4 states and 517 transitions. [2022-11-23 03:08:35,434 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 39 places, 56 transitions, 266 flow [2022-11-23 03:08:35,436 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 37 places, 56 transitions, 261 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-23 03:08:35,437 INFO L231 Difference]: Finished difference. Result has 38 places, 27 transitions, 109 flow [2022-11-23 03:08:35,438 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=259, PETRI_DIFFERENCE_MINUEND_FLOW=83, PETRI_DIFFERENCE_MINUEND_PLACES=34, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=27, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=20, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=109, PETRI_PLACES=38, PETRI_TRANSITIONS=27} [2022-11-23 03:08:35,440 INFO L288 CegarLoopForPetriNet]: 37 programPoint places, 1 predicate places. [2022-11-23 03:08:35,440 INFO L495 AbstractCegarLoop]: Abstraction has has 38 places, 27 transitions, 109 flow [2022-11-23 03:08:35,441 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 117.75) internal successors, (471), 4 states have internal predecessors, (471), 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) [2022-11-23 03:08:35,441 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-23 03:08:35,441 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 03:08:35,441 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-23 03:08:35,442 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-11-23 03:08:35,442 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:08:35,442 INFO L85 PathProgramCache]: Analyzing trace with hash -990494624, now seen corresponding path program 1 times [2022-11-23 03:08:35,443 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:08:35,443 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1124413816] [2022-11-23 03:08:35,443 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:08:35,443 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:08:35,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:08:35,658 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:08:35,658 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:08:35,659 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1124413816] [2022-11-23 03:08:35,659 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1124413816] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 03:08:35,660 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 03:08:35,660 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 03:08:35,661 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1958401789] [2022-11-23 03:08:35,661 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 03:08:35,662 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-23 03:08:35,662 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:08:35,664 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-23 03:08:35,664 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-11-23 03:08:35,674 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 115 out of 259 [2022-11-23 03:08:35,675 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 38 places, 27 transitions, 109 flow. Second operand has 5 states, 5 states have (on average 118.2) internal successors, (591), 5 states have internal predecessors, (591), 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) [2022-11-23 03:08:35,676 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-23 03:08:35,680 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 115 of 259 [2022-11-23 03:08:35,681 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-23 03:08:36,168 INFO L130 PetriNetUnfolder]: 716/1110 cut-off events. [2022-11-23 03:08:36,168 INFO L131 PetriNetUnfolder]: For 783/783 co-relation queries the response was YES. [2022-11-23 03:08:36,171 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2948 conditions, 1110 events. 716/1110 cut-off events. For 783/783 co-relation queries the response was YES. Maximal size of possible extension queue 73. Compared 4934 event pairs, 305 based on Foata normal form. 12/1104 useless extension candidates. Maximal degree in co-relation 2935. Up to 482 conditions per place. [2022-11-23 03:08:36,172 INFO L137 encePairwiseOnDemand]: 252/259 looper letters, 0 selfloop transitions, 0 changer transitions 50/50 dead transitions. [2022-11-23 03:08:36,173 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 39 places, 50 transitions, 245 flow [2022-11-23 03:08:36,173 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-23 03:08:36,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-11-23 03:08:36,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 626 transitions. [2022-11-23 03:08:36,180 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4833976833976834 [2022-11-23 03:08:36,180 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 626 transitions. [2022-11-23 03:08:36,180 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 626 transitions. [2022-11-23 03:08:36,181 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-23 03:08:36,181 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 626 transitions. [2022-11-23 03:08:36,183 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 125.2) internal successors, (626), 5 states have internal predecessors, (626), 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) [2022-11-23 03:08:36,186 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 259.0) internal successors, (1554), 6 states have internal predecessors, (1554), 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) [2022-11-23 03:08:36,187 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 259.0) internal successors, (1554), 6 states have internal predecessors, (1554), 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) [2022-11-23 03:08:36,187 INFO L175 Difference]: Start difference. First operand has 38 places, 27 transitions, 109 flow. Second operand 5 states and 626 transitions. [2022-11-23 03:08:36,188 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 39 places, 50 transitions, 245 flow [2022-11-23 03:08:36,194 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 35 places, 50 transitions, 221 flow, removed 3 selfloop flow, removed 4 redundant places. [2022-11-23 03:08:36,196 INFO L231 Difference]: Finished difference. Result has 35 places, 0 transitions, 0 flow [2022-11-23 03:08:36,196 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=259, PETRI_DIFFERENCE_MINUEND_FLOW=67, PETRI_DIFFERENCE_MINUEND_PLACES=31, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=24, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=24, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=0, PETRI_PLACES=35, PETRI_TRANSITIONS=0} [2022-11-23 03:08:36,198 INFO L288 CegarLoopForPetriNet]: 37 programPoint places, -2 predicate places. [2022-11-23 03:08:36,199 INFO L495 AbstractCegarLoop]: Abstraction has has 35 places, 0 transitions, 0 flow [2022-11-23 03:08:36,199 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 118.2) internal successors, (591), 5 states have internal predecessors, (591), 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) [2022-11-23 03:08:36,206 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 15 remaining) [2022-11-23 03:08:36,206 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 15 remaining) [2022-11-23 03:08:36,207 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 15 remaining) [2022-11-23 03:08:36,207 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 15 remaining) [2022-11-23 03:08:36,207 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 15 remaining) [2022-11-23 03:08:36,208 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 15 remaining) [2022-11-23 03:08:36,208 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 15 remaining) [2022-11-23 03:08:36,209 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (7 of 15 remaining) [2022-11-23 03:08:36,209 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (6 of 15 remaining) [2022-11-23 03:08:36,209 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 15 remaining) [2022-11-23 03:08:36,209 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 15 remaining) [2022-11-23 03:08:36,210 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 15 remaining) [2022-11-23 03:08:36,210 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 15 remaining) [2022-11-23 03:08:36,210 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 15 remaining) [2022-11-23 03:08:36,211 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 15 remaining) [2022-11-23 03:08:36,211 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-23 03:08:36,211 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2022-11-23 03:08:36,219 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-23 03:08:36,219 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-23 03:08:36,235 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 03:08:36 BasicIcfg [2022-11-23 03:08:36,235 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-23 03:08:36,235 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-23 03:08:36,236 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-23 03:08:36,236 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-23 03:08:36,237 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:08:17" (3/4) ... [2022-11-23 03:08:36,240 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-23 03:08:36,246 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2022-11-23 03:08:36,246 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2022-11-23 03:08:36,246 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2022-11-23 03:08:36,255 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 36 nodes and edges [2022-11-23 03:08:36,255 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2022-11-23 03:08:36,255 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2022-11-23 03:08:36,256 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-23 03:08:36,314 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_313563c5-4a13-4b25-8232-97227ca1b137/bin/uautomizer-QkZJyEgLgS/witness.graphml [2022-11-23 03:08:36,314 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-23 03:08:36,315 INFO L158 Benchmark]: Toolchain (without parser) took 21631.74ms. Allocated memory was 132.1MB in the beginning and 270.5MB in the end (delta: 138.4MB). Free memory was 86.3MB in the beginning and 135.4MB in the end (delta: -49.1MB). Peak memory consumption was 92.2MB. Max. memory is 16.1GB. [2022-11-23 03:08:36,315 INFO L158 Benchmark]: CDTParser took 0.34ms. Allocated memory is still 132.1MB. Free memory is still 75.6MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-23 03:08:36,315 INFO L158 Benchmark]: CACSL2BoogieTranslator took 699.73ms. Allocated memory is still 132.1MB. Free memory was 86.3MB in the beginning and 62.1MB in the end (delta: 24.2MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2022-11-23 03:08:36,316 INFO L158 Benchmark]: Boogie Procedure Inliner took 86.58ms. Allocated memory is still 132.1MB. Free memory was 62.1MB in the beginning and 59.5MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-23 03:08:36,316 INFO L158 Benchmark]: Boogie Preprocessor took 48.90ms. Allocated memory is still 132.1MB. Free memory was 59.5MB in the beginning and 57.0MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-23 03:08:36,316 INFO L158 Benchmark]: RCFGBuilder took 1584.31ms. Allocated memory was 132.1MB in the beginning and 178.3MB in the end (delta: 46.1MB). Free memory was 57.0MB in the beginning and 143.6MB in the end (delta: -86.6MB). Peak memory consumption was 30.6MB. Max. memory is 16.1GB. [2022-11-23 03:08:36,317 INFO L158 Benchmark]: TraceAbstraction took 19122.68ms. Allocated memory was 178.3MB in the beginning and 270.5MB in the end (delta: 92.3MB). Free memory was 142.5MB in the beginning and 138.6MB in the end (delta: 3.9MB). Peak memory consumption was 160.2MB. Max. memory is 16.1GB. [2022-11-23 03:08:36,317 INFO L158 Benchmark]: Witness Printer took 78.47ms. Allocated memory is still 270.5MB. Free memory was 138.6MB in the beginning and 135.4MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-23 03:08:36,319 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34ms. Allocated memory is still 132.1MB. Free memory is still 75.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 699.73ms. Allocated memory is still 132.1MB. Free memory was 86.3MB in the beginning and 62.1MB in the end (delta: 24.2MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 86.58ms. Allocated memory is still 132.1MB. Free memory was 62.1MB in the beginning and 59.5MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 48.90ms. Allocated memory is still 132.1MB. Free memory was 59.5MB in the beginning and 57.0MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 1584.31ms. Allocated memory was 132.1MB in the beginning and 178.3MB in the end (delta: 46.1MB). Free memory was 57.0MB in the beginning and 143.6MB in the end (delta: -86.6MB). Peak memory consumption was 30.6MB. Max. memory is 16.1GB. * TraceAbstraction took 19122.68ms. Allocated memory was 178.3MB in the beginning and 270.5MB in the end (delta: 92.3MB). Free memory was 142.5MB in the beginning and 138.6MB in the end (delta: 3.9MB). Peak memory consumption was 160.2MB. Max. memory is 16.1GB. * Witness Printer took 78.47ms. Allocated memory is still 270.5MB. Free memory was 138.6MB in the beginning and 135.4MB 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: 14.8s, 143 PlacesBefore, 37 PlacesAfterwards, 135 TransitionsBefore, 28 TransitionsAfterwards, 2592 CoEnabledTransitionPairs, 7 FixpointIterations, 60 TrivialSequentialCompositions, 50 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 10 ConcurrentYvCompositions, 1 ChoiceCompositions, 121 TotalNumberOfCompositions, 8563 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 3014, independent: 2741, independent conditional: 0, independent unconditional: 2741, dependent: 273, dependent conditional: 0, dependent unconditional: 273, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1793, independent: 1718, independent conditional: 0, independent unconditional: 1718, dependent: 75, dependent conditional: 0, dependent unconditional: 75, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1793, independent: 1673, independent conditional: 0, independent unconditional: 1673, dependent: 120, dependent conditional: 0, dependent unconditional: 120, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 120, independent: 45, independent conditional: 0, independent unconditional: 45, dependent: 75, dependent conditional: 0, dependent unconditional: 75, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 1350, independent: 99, independent conditional: 0, independent unconditional: 99, dependent: 1251, dependent conditional: 0, dependent unconditional: 1251, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 3014, independent: 1023, independent conditional: 0, independent unconditional: 1023, dependent: 198, dependent conditional: 0, dependent unconditional: 198, unknown: 1793, unknown conditional: 0, unknown unconditional: 1793] , Statistics on independence cache: Total cache size (in pairs): 140, Positive cache size: 112, Positive conditional cache size: 0, Positive unconditional cache size: 112, Negative cache size: 28, Negative conditional cache size: 0, Negative unconditional cache size: 28, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 782]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 782]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 818]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 818]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 838]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 838]: 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, 170 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: 18.9s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 2.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 15.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 176 SdHoareTripleChecker+Valid, 0.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 156 mSDsluCounter, 1 SdHoareTripleChecker+Invalid, 0.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 45 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 260 IncrementalHoareTripleChecker+Invalid, 305 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 45 mSolverCounterUnsat, 1 mSDtfsCounter, 260 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 8 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=109occurred in iteration=3, InterpolantAutomatonStates: 16, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 46 NumberOfCodeBlocks, 46 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 42 ConstructedInterpolants, 0 QuantifiedInterpolants, 126 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! [2022-11-23 03:08:36,344 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_313563c5-4a13-4b25-8232-97227ca1b137/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE