./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/pthread-wmm/safe030_power.oepc_pso.oepc_rmo.oepc.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_f131d8fe-ee82-4cec-86fa-512684bc8f9a/bin/utaipan-Q6hlc19bkW/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f131d8fe-ee82-4cec-86fa-512684bc8f9a/bin/utaipan-Q6hlc19bkW/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f131d8fe-ee82-4cec-86fa-512684bc8f9a/bin/utaipan-Q6hlc19bkW/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f131d8fe-ee82-4cec-86fa-512684bc8f9a/bin/utaipan-Q6hlc19bkW/config/TaipanReach.xml -i ../../sv-benchmarks/c/pthread-wmm/safe030_power.oepc_pso.oepc_rmo.oepc.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f131d8fe-ee82-4cec-86fa-512684bc8f9a/bin/utaipan-Q6hlc19bkW/config/svcomp-Overflow-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f131d8fe-ee82-4cec-86fa-512684bc8f9a/bin/utaipan-Q6hlc19bkW --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 Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash bd5019d3aed54929cd262296b7eb8866c696444f31311cf49176222c13f665a6 --- 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 14:32:23,747 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-23 14:32:23,749 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-23 14:32:23,793 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-23 14:32:23,793 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-23 14:32:23,797 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-23 14:32:23,800 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-23 14:32:23,803 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-23 14:32:23,805 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-23 14:32:23,810 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-23 14:32:23,811 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-23 14:32:23,812 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-23 14:32:23,813 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-23 14:32:23,814 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-23 14:32:23,815 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-23 14:32:23,816 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-23 14:32:23,817 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-23 14:32:23,818 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-23 14:32:23,821 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-23 14:32:23,828 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-23 14:32:23,831 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-23 14:32:23,834 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-23 14:32:23,836 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-23 14:32:23,837 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-23 14:32:23,847 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-23 14:32:23,848 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-23 14:32:23,848 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-23 14:32:23,850 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-23 14:32:23,850 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-23 14:32:23,851 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-23 14:32:23,852 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-23 14:32:23,853 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-23 14:32:23,854 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-23 14:32:23,856 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-23 14:32:23,858 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-23 14:32:23,858 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-23 14:32:23,859 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-23 14:32:23,859 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-23 14:32:23,860 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-23 14:32:23,861 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-23 14:32:23,862 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-23 14:32:23,863 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f131d8fe-ee82-4cec-86fa-512684bc8f9a/bin/utaipan-Q6hlc19bkW/config/svcomp-Overflow-32bit-Taipan_Default.epf [2022-11-23 14:32:23,904 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-23 14:32:23,905 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-23 14:32:23,905 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-23 14:32:23,906 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-23 14:32:23,907 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-23 14:32:23,907 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-23 14:32:23,907 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-23 14:32:23,908 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-23 14:32:23,908 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-23 14:32:23,908 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-23 14:32:23,909 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-23 14:32:23,909 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-23 14:32:23,910 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-23 14:32:23,910 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-23 14:32:23,910 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-23 14:32:23,911 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-23 14:32:23,911 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-23 14:32:23,911 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-23 14:32:23,912 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-23 14:32:23,912 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-23 14:32:23,912 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-23 14:32:23,913 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-23 14:32:23,913 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-23 14:32:23,913 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-23 14:32:23,913 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-23 14:32:23,914 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-23 14:32:23,914 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-23 14:32:23,914 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-23 14:32:23,914 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-23 14:32:23,915 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-23 14:32:23,915 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-23 14:32:23,915 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-23 14:32:23,916 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-23 14:32:23,916 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-23 14:32:23,916 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 14:32:23,917 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-23 14:32:23,917 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-23 14:32:23,917 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-23 14:32:23,917 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-23 14:32:23,918 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-23 14:32:23,918 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-23 14:32:23,918 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-23 14:32:23,918 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-23 14:32:23,929 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_f131d8fe-ee82-4cec-86fa-512684bc8f9a/bin/utaipan-Q6hlc19bkW/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f131d8fe-ee82-4cec-86fa-512684bc8f9a/bin/utaipan-Q6hlc19bkW Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bd5019d3aed54929cd262296b7eb8866c696444f31311cf49176222c13f665a6 [2022-11-23 14:32:24,212 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-23 14:32:24,243 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-23 14:32:24,247 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-23 14:32:24,248 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-23 14:32:24,248 INFO L275 PluginConnector]: CDTParser initialized [2022-11-23 14:32:24,249 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f131d8fe-ee82-4cec-86fa-512684bc8f9a/bin/utaipan-Q6hlc19bkW/../../sv-benchmarks/c/pthread-wmm/safe030_power.oepc_pso.oepc_rmo.oepc.i [2022-11-23 14:32:27,278 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-23 14:32:27,537 INFO L351 CDTParser]: Found 1 translation units. [2022-11-23 14:32:27,538 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f131d8fe-ee82-4cec-86fa-512684bc8f9a/sv-benchmarks/c/pthread-wmm/safe030_power.oepc_pso.oepc_rmo.oepc.i [2022-11-23 14:32:27,555 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f131d8fe-ee82-4cec-86fa-512684bc8f9a/bin/utaipan-Q6hlc19bkW/data/e01d862dd/26da88b3edb94a0190414c307aa053e2/FLAGe44c4fab0 [2022-11-23 14:32:27,570 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f131d8fe-ee82-4cec-86fa-512684bc8f9a/bin/utaipan-Q6hlc19bkW/data/e01d862dd/26da88b3edb94a0190414c307aa053e2 [2022-11-23 14:32:27,572 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-23 14:32:27,574 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-23 14:32:27,575 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-23 14:32:27,576 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-23 14:32:27,579 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-23 14:32:27,580 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:32:27" (1/1) ... [2022-11-23 14:32:27,581 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3d15b1ab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:32:27, skipping insertion in model container [2022-11-23 14:32:27,581 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:32:27" (1/1) ... [2022-11-23 14:32:27,617 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-23 14:32:27,689 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-23 14:32:27,872 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_f131d8fe-ee82-4cec-86fa-512684bc8f9a/sv-benchmarks/c/pthread-wmm/safe030_power.oepc_pso.oepc_rmo.oepc.i[970,983] [2022-11-23 14:32:28,176 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 14:32:28,197 INFO L203 MainTranslator]: Completed pre-run [2022-11-23 14:32:28,213 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_f131d8fe-ee82-4cec-86fa-512684bc8f9a/sv-benchmarks/c/pthread-wmm/safe030_power.oepc_pso.oepc_rmo.oepc.i[970,983] [2022-11-23 14:32:28,301 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 14:32:28,339 INFO L208 MainTranslator]: Completed translation [2022-11-23 14:32:28,340 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:32:28 WrapperNode [2022-11-23 14:32:28,340 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-23 14:32:28,341 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-23 14:32:28,342 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-23 14:32:28,342 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-23 14:32:28,351 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:32:28" (1/1) ... [2022-11-23 14:32:28,387 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:32:28" (1/1) ... [2022-11-23 14:32:28,431 INFO L138 Inliner]: procedures = 176, calls = 54, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 143 [2022-11-23 14:32:28,433 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-23 14:32:28,433 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-23 14:32:28,434 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-23 14:32:28,434 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-23 14:32:28,445 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:32:28" (1/1) ... [2022-11-23 14:32:28,445 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:32:28" (1/1) ... [2022-11-23 14:32:28,458 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:32:28" (1/1) ... [2022-11-23 14:32:28,469 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:32:28" (1/1) ... [2022-11-23 14:32:28,476 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:32:28" (1/1) ... [2022-11-23 14:32:28,492 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:32:28" (1/1) ... [2022-11-23 14:32:28,494 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:32:28" (1/1) ... [2022-11-23 14:32:28,496 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:32:28" (1/1) ... [2022-11-23 14:32:28,499 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-23 14:32:28,500 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-23 14:32:28,500 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-23 14:32:28,501 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-23 14:32:28,502 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:32:28" (1/1) ... [2022-11-23 14:32:28,519 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 14:32:28,532 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f131d8fe-ee82-4cec-86fa-512684bc8f9a/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 14:32:28,546 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f131d8fe-ee82-4cec-86fa-512684bc8f9a/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-23 14:32:28,579 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f131d8fe-ee82-4cec-86fa-512684bc8f9a/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-23 14:32:28,599 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-23 14:32:28,599 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-11-23 14:32:28,599 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-23 14:32:28,600 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-23 14:32:28,600 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-23 14:32:28,600 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2022-11-23 14:32:28,600 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2022-11-23 14:32:28,600 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2022-11-23 14:32:28,600 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2022-11-23 14:32:28,601 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2022-11-23 14:32:28,601 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2022-11-23 14:32:28,601 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-23 14:32:28,601 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-11-23 14:32:28,601 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-23 14:32:28,601 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-23 14:32:28,603 WARN L209 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-23 14:32:28,747 INFO L235 CfgBuilder]: Building ICFG [2022-11-23 14:32:28,750 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-23 14:32:29,209 INFO L276 CfgBuilder]: Performing block encoding [2022-11-23 14:32:29,524 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-23 14:32:29,525 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-23 14:32:29,527 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:32:29 BoogieIcfgContainer [2022-11-23 14:32:29,527 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-23 14:32:29,531 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-23 14:32:29,535 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-23 14:32:29,538 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-23 14:32:29,539 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 02:32:27" (1/3) ... [2022-11-23 14:32:29,540 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b6be205 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:32:29, skipping insertion in model container [2022-11-23 14:32:29,540 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:32:28" (2/3) ... [2022-11-23 14:32:29,543 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b6be205 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:32:29, skipping insertion in model container [2022-11-23 14:32:29,543 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:32:29" (3/3) ... [2022-11-23 14:32:29,544 INFO L112 eAbstractionObserver]: Analyzing ICFG safe030_power.oepc_pso.oepc_rmo.oepc.i [2022-11-23 14:32:29,557 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-23 14:32:29,568 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-23 14:32:29,568 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2022-11-23 14:32:29,568 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-23 14:32:29,641 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-11-23 14:32:29,693 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-23 14:32:29,714 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 125 places, 117 transitions, 249 flow [2022-11-23 14:32:29,719 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 125 places, 117 transitions, 249 flow [2022-11-23 14:32:29,721 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 125 places, 117 transitions, 249 flow [2022-11-23 14:32:29,826 INFO L130 PetriNetUnfolder]: 2/114 cut-off events. [2022-11-23 14:32:29,827 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-23 14:32:29,833 INFO L83 FinitePrefix]: Finished finitePrefix Result has 124 conditions, 114 events. 2/114 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. 0/106 useless extension candidates. Maximal degree in co-relation 77. Up to 2 conditions per place. [2022-11-23 14:32:29,837 INFO L119 LiptonReduction]: Number of co-enabled transitions 2592 [2022-11-23 14:32:36,149 INFO L134 LiptonReduction]: Checked pairs total: 8649 [2022-11-23 14:32:36,150 INFO L136 LiptonReduction]: Total number of compositions: 98 [2022-11-23 14:32:36,158 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 40 places, 30 transitions, 75 flow [2022-11-23 14:32:36,272 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 1482 states, 1456 states have (on average 3.3214285714285716) internal successors, (4836), 1481 states have internal predecessors, (4836), 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 14:32:36,291 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-23 14:32:36,302 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=FINITE_AUTOMATA, 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;@26cb011a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-23 14:32:36,302 INFO L358 AbstractCegarLoop]: Starting to check reachability of 15 error locations. [2022-11-23 14:32:36,308 INFO L276 IsEmpty]: Start isEmpty. Operand has 1482 states, 1456 states have (on average 3.3214285714285716) internal successors, (4836), 1481 states have internal predecessors, (4836), 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 14:32:36,312 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-23 14:32:36,313 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:32:36,313 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-11-23 14:32:36,314 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 14:32:36,318 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:32:36,319 INFO L85 PathProgramCache]: Analyzing trace with hash 490400248, now seen corresponding path program 1 times [2022-11-23 14:32:36,329 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:32:36,333 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [639690608] [2022-11-23 14:32:36,334 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:32:36,334 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:32:36,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:32:36,667 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 14:32:36,667 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:32:36,667 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [639690608] [2022-11-23 14:32:36,668 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [639690608] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:32:36,668 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:32:36,668 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-23 14:32:36,670 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1072300978] [2022-11-23 14:32:36,670 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:32:36,674 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 14:32:36,675 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:32:36,722 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 14:32:36,723 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 14:32:36,729 INFO L87 Difference]: Start difference. First operand has 1482 states, 1456 states have (on average 3.3214285714285716) internal successors, (4836), 1481 states have internal predecessors, (4836), 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) Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 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 14:32:36,906 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:32:36,906 INFO L93 Difference]: Finished difference Result 830 states and 2428 transitions. [2022-11-23 14:32:36,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 14:32:36,908 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 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) Word has length 5 [2022-11-23 14:32:36,909 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:32:36,935 INFO L225 Difference]: With dead ends: 830 [2022-11-23 14:32:36,935 INFO L226 Difference]: Without dead ends: 830 [2022-11-23 14:32:36,936 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 14:32:36,942 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 14 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 6 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-23 14:32:36,943 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 6 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-23 14:32:36,965 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 830 states. [2022-11-23 14:32:37,032 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 830 to 830. [2022-11-23 14:32:37,036 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 830 states, 812 states have (on average 2.9901477832512313) internal successors, (2428), 829 states have internal predecessors, (2428), 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 14:32:37,039 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 830 states to 830 states and 2428 transitions. [2022-11-23 14:32:37,040 INFO L78 Accepts]: Start accepts. Automaton has 830 states and 2428 transitions. Word has length 5 [2022-11-23 14:32:37,041 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:32:37,041 INFO L495 AbstractCegarLoop]: Abstraction has 830 states and 2428 transitions. [2022-11-23 14:32:37,041 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 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 14:32:37,041 INFO L276 IsEmpty]: Start isEmpty. Operand 830 states and 2428 transitions. [2022-11-23 14:32:37,043 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-23 14:32:37,043 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:32:37,043 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:32:37,043 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-23 14:32:37,044 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-11-23 14:32:37,044 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:32:37,044 INFO L85 PathProgramCache]: Analyzing trace with hash -348354626, now seen corresponding path program 1 times [2022-11-23 14:32:37,045 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:32:37,045 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1770739657] [2022-11-23 14:32:37,045 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:32:37,045 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:32:37,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:32:37,289 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 14:32:37,289 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:32:37,290 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1770739657] [2022-11-23 14:32:37,290 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1770739657] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:32:37,290 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:32:37,290 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-23 14:32:37,291 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [247009168] [2022-11-23 14:32:37,291 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:32:37,292 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-23 14:32:37,292 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:32:37,293 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-23 14:32:37,293 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-23 14:32:37,293 INFO L87 Difference]: Start difference. First operand 830 states and 2428 transitions. Second operand has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 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 14:32:37,425 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:32:37,426 INFO L93 Difference]: Finished difference Result 682 states and 2036 transitions. [2022-11-23 14:32:37,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-23 14:32:37,426 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 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) Word has length 11 [2022-11-23 14:32:37,427 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:32:37,432 INFO L225 Difference]: With dead ends: 682 [2022-11-23 14:32:37,432 INFO L226 Difference]: Without dead ends: 682 [2022-11-23 14:32:37,432 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-23 14:32:37,433 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 28 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 74 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 12 SdHoareTripleChecker+Invalid, 81 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 74 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-23 14:32:37,434 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [28 Valid, 12 Invalid, 81 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 74 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-23 14:32:37,437 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 682 states. [2022-11-23 14:32:37,459 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 682 to 682. [2022-11-23 14:32:37,461 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 682 states, 676 states have (on average 3.0118343195266273) internal successors, (2036), 681 states have internal predecessors, (2036), 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 14:32:37,465 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 682 states to 682 states and 2036 transitions. [2022-11-23 14:32:37,466 INFO L78 Accepts]: Start accepts. Automaton has 682 states and 2036 transitions. Word has length 11 [2022-11-23 14:32:37,466 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:32:37,466 INFO L495 AbstractCegarLoop]: Abstraction has 682 states and 2036 transitions. [2022-11-23 14:32:37,466 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 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 14:32:37,467 INFO L276 IsEmpty]: Start isEmpty. Operand 682 states and 2036 transitions. [2022-11-23 14:32:37,469 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-11-23 14:32:37,469 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:32:37,469 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:32:37,469 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-23 14:32:37,470 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-11-23 14:32:37,470 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:32:37,470 INFO L85 PathProgramCache]: Analyzing trace with hash 2085906705, now seen corresponding path program 1 times [2022-11-23 14:32:37,470 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:32:37,471 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [633723892] [2022-11-23 14:32:37,471 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:32:37,471 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:32:37,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:32:37,642 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 14:32:37,643 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:32:37,643 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [633723892] [2022-11-23 14:32:37,643 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [633723892] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:32:37,643 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:32:37,643 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-23 14:32:37,644 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [850695920] [2022-11-23 14:32:37,644 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:32:37,644 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-23 14:32:37,644 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:32:37,645 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-23 14:32:37,645 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-23 14:32:37,645 INFO L87 Difference]: Start difference. First operand 682 states and 2036 transitions. Second operand has 4 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 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 14:32:37,774 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:32:37,774 INFO L93 Difference]: Finished difference Result 570 states and 1731 transitions. [2022-11-23 14:32:37,774 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-23 14:32:37,775 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 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) Word has length 12 [2022-11-23 14:32:37,775 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:32:37,779 INFO L225 Difference]: With dead ends: 570 [2022-11-23 14:32:37,779 INFO L226 Difference]: Without dead ends: 570 [2022-11-23 14:32:37,779 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-23 14:32:37,780 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 40 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 9 SdHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-23 14:32:37,781 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [40 Valid, 9 Invalid, 59 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 54 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-23 14:32:37,785 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 570 states. [2022-11-23 14:32:37,799 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 570 to 570. [2022-11-23 14:32:37,801 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 570 states, 567 states have (on average 3.052910052910053) internal successors, (1731), 569 states have internal predecessors, (1731), 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 14:32:37,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 570 states to 570 states and 1731 transitions. [2022-11-23 14:32:37,805 INFO L78 Accepts]: Start accepts. Automaton has 570 states and 1731 transitions. Word has length 12 [2022-11-23 14:32:37,807 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:32:37,807 INFO L495 AbstractCegarLoop]: Abstraction has 570 states and 1731 transitions. [2022-11-23 14:32:37,807 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 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 14:32:37,807 INFO L276 IsEmpty]: Start isEmpty. Operand 570 states and 1731 transitions. [2022-11-23 14:32:37,816 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-11-23 14:32:37,816 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:32:37,816 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:32:37,816 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-23 14:32:37,816 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 14:32:37,818 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:32:37,818 INFO L85 PathProgramCache]: Analyzing trace with hash -1359087464, now seen corresponding path program 1 times [2022-11-23 14:32:37,818 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:32:37,822 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [121672077] [2022-11-23 14:32:37,822 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:32:37,822 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:32:37,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:32:38,052 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 14:32:38,052 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:32:38,052 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [121672077] [2022-11-23 14:32:38,054 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [121672077] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:32:38,055 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:32:38,055 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 14:32:38,058 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [108537436] [2022-11-23 14:32:38,058 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:32:38,059 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-23 14:32:38,059 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:32:38,059 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-23 14:32:38,059 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-11-23 14:32:38,060 INFO L87 Difference]: Start difference. First operand 570 states and 1731 transitions. Second operand has 5 states, 4 states have (on average 4.5) internal successors, (18), 4 states have internal predecessors, (18), 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 14:32:38,171 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:32:38,172 INFO L93 Difference]: Finished difference Result 558 states and 1710 transitions. [2022-11-23 14:32:38,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-23 14:32:38,172 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 4.5) internal successors, (18), 4 states have internal predecessors, (18), 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) Word has length 18 [2022-11-23 14:32:38,173 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:32:38,173 INFO L225 Difference]: With dead ends: 558 [2022-11-23 14:32:38,173 INFO L226 Difference]: Without dead ends: 0 [2022-11-23 14:32:38,173 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-11-23 14:32:38,174 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 44 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 9 SdHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-23 14:32:38,175 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [44 Valid, 9 Invalid, 56 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-23 14:32:38,175 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-23 14:32:38,176 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-23 14:32:38,176 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 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 14:32:38,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-23 14:32:38,176 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 18 [2022-11-23 14:32:38,176 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:32:38,176 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-23 14:32:38,177 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 4.5) internal successors, (18), 4 states have internal predecessors, (18), 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 14:32:38,177 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-23 14:32:38,177 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-23 14:32:38,179 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 15 remaining) [2022-11-23 14:32:38,180 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 15 remaining) [2022-11-23 14:32:38,180 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 15 remaining) [2022-11-23 14:32:38,181 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 15 remaining) [2022-11-23 14:32:38,181 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 15 remaining) [2022-11-23 14:32:38,181 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 15 remaining) [2022-11-23 14:32:38,181 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 15 remaining) [2022-11-23 14:32:38,181 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (7 of 15 remaining) [2022-11-23 14:32:38,182 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (6 of 15 remaining) [2022-11-23 14:32:38,182 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 15 remaining) [2022-11-23 14:32:38,182 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 15 remaining) [2022-11-23 14:32:38,182 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 15 remaining) [2022-11-23 14:32:38,182 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 15 remaining) [2022-11-23 14:32:38,183 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 15 remaining) [2022-11-23 14:32:38,183 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 15 remaining) [2022-11-23 14:32:38,183 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-23 14:32:38,185 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2022-11-23 14:32:38,196 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-23 14:32:38,196 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-23 14:32:38,200 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 02:32:38 BasicIcfg [2022-11-23 14:32:38,200 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-23 14:32:38,201 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-23 14:32:38,201 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-23 14:32:38,201 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-23 14:32:38,202 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:32:29" (3/4) ... [2022-11-23 14:32:38,205 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-23 14:32:38,210 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2022-11-23 14:32:38,210 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2022-11-23 14:32:38,210 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2022-11-23 14:32:38,217 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 32 nodes and edges [2022-11-23 14:32:38,218 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2022-11-23 14:32:38,218 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2022-11-23 14:32:38,218 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-23 14:32:38,264 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f131d8fe-ee82-4cec-86fa-512684bc8f9a/bin/utaipan-Q6hlc19bkW/witness.graphml [2022-11-23 14:32:38,266 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-23 14:32:38,267 INFO L158 Benchmark]: Toolchain (without parser) took 10693.44ms. Allocated memory was 125.8MB in the beginning and 188.7MB in the end (delta: 62.9MB). Free memory was 62.1MB in the beginning and 130.7MB in the end (delta: -68.5MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-23 14:32:38,267 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 125.8MB. Free memory is still 94.8MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-23 14:32:38,268 INFO L158 Benchmark]: CACSL2BoogieTranslator took 765.41ms. Allocated memory was 125.8MB in the beginning and 157.3MB in the end (delta: 31.5MB). Free memory was 61.9MB in the beginning and 108.0MB in the end (delta: -46.2MB). Peak memory consumption was 12.3MB. Max. memory is 16.1GB. [2022-11-23 14:32:38,268 INFO L158 Benchmark]: Boogie Procedure Inliner took 91.57ms. Allocated memory is still 157.3MB. Free memory was 108.0MB in the beginning and 105.2MB in the end (delta: 2.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-23 14:32:38,268 INFO L158 Benchmark]: Boogie Preprocessor took 66.02ms. Allocated memory is still 157.3MB. Free memory was 105.2MB in the beginning and 103.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-23 14:32:38,269 INFO L158 Benchmark]: RCFGBuilder took 1027.08ms. Allocated memory is still 157.3MB. Free memory was 103.1MB in the beginning and 119.2MB in the end (delta: -16.2MB). Peak memory consumption was 31.5MB. Max. memory is 16.1GB. [2022-11-23 14:32:38,269 INFO L158 Benchmark]: TraceAbstraction took 8669.77ms. Allocated memory was 157.3MB in the beginning and 188.7MB in the end (delta: 31.5MB). Free memory was 119.2MB in the beginning and 133.8MB in the end (delta: -14.6MB). Peak memory consumption was 20.0MB. Max. memory is 16.1GB. [2022-11-23 14:32:38,269 INFO L158 Benchmark]: Witness Printer took 65.67ms. Allocated memory is still 188.7MB. Free memory was 133.8MB in the beginning and 130.7MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-23 14:32:38,272 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19ms. Allocated memory is still 125.8MB. Free memory is still 94.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 765.41ms. Allocated memory was 125.8MB in the beginning and 157.3MB in the end (delta: 31.5MB). Free memory was 61.9MB in the beginning and 108.0MB in the end (delta: -46.2MB). Peak memory consumption was 12.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 91.57ms. Allocated memory is still 157.3MB. Free memory was 108.0MB in the beginning and 105.2MB in the end (delta: 2.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 66.02ms. Allocated memory is still 157.3MB. Free memory was 105.2MB in the beginning and 103.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 1027.08ms. Allocated memory is still 157.3MB. Free memory was 103.1MB in the beginning and 119.2MB in the end (delta: -16.2MB). Peak memory consumption was 31.5MB. Max. memory is 16.1GB. * TraceAbstraction took 8669.77ms. Allocated memory was 157.3MB in the beginning and 188.7MB in the end (delta: 31.5MB). Free memory was 119.2MB in the beginning and 133.8MB in the end (delta: -14.6MB). Peak memory consumption was 20.0MB. Max. memory is 16.1GB. * Witness Printer took 65.67ms. Allocated memory is still 188.7MB. Free memory was 133.8MB in the beginning and 130.7MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 6.4s, 125 PlacesBefore, 40 PlacesAfterwards, 117 TransitionsBefore, 30 TransitionsAfterwards, 2592 CoEnabledTransitionPairs, 7 FixpointIterations, 39 TrivialSequentialCompositions, 47 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 10 ConcurrentYvCompositions, 2 ChoiceCompositions, 98 TotalNumberOfCompositions, 8649 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 3469, independent: 3206, independent conditional: 0, independent unconditional: 3206, dependent: 263, dependent conditional: 0, dependent unconditional: 263, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1858, independent: 1783, independent conditional: 0, independent unconditional: 1783, 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: 1858, independent: 1764, independent conditional: 0, independent unconditional: 1764, dependent: 94, dependent conditional: 0, dependent unconditional: 94, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 94, independent: 19, independent conditional: 0, independent unconditional: 19, dependent: 75, dependent conditional: 0, dependent unconditional: 75, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 882, independent: 68, independent conditional: 0, independent unconditional: 68, dependent: 814, dependent conditional: 0, dependent unconditional: 814, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 3469, independent: 1423, independent conditional: 0, independent unconditional: 1423, dependent: 188, dependent conditional: 0, dependent unconditional: 188, unknown: 1858, unknown conditional: 0, unknown unconditional: 1858] , Statistics on independence cache: Total cache size (in pairs): 175, Positive cache size: 150, Positive conditional cache size: 0, Positive unconditional cache size: 150, Negative cache size: 25, Negative conditional cache size: 0, Negative unconditional cache size: 25, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 761]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 761]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 781]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 781]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 801]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 801]: 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, 149 locations, 15 error locations. Started 1 CEGAR loops. OverallTime: 8.5s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 6.6s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 126 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 126 mSDsluCounter, 36 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 21 mSDsCounter, 25 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 222 IncrementalHoareTripleChecker+Invalid, 247 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 25 mSolverCounterUnsat, 15 mSDtfsCounter, 222 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=1482occurred in iteration=0, 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: 0.1s AutomataMinimizationTime, 4 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s 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 14:32:38,304 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f131d8fe-ee82-4cec-86fa-512684bc8f9a/bin/utaipan-Q6hlc19bkW/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