./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/pthread-wmm/safe029_power.oepc_pso.oepc_rmo.oepc.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 5e519f3a 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_e819bc74-d6b8-4bdd-ad28-cea6fb704c87/bin/utaipan-7li7fVZpFI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e819bc74-d6b8-4bdd-ad28-cea6fb704c87/bin/utaipan-7li7fVZpFI/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e819bc74-d6b8-4bdd-ad28-cea6fb704c87/bin/utaipan-7li7fVZpFI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e819bc74-d6b8-4bdd-ad28-cea6fb704c87/bin/utaipan-7li7fVZpFI/config/TaipanReach.xml -i ../../sv-benchmarks/c/pthread-wmm/safe029_power.oepc_pso.oepc_rmo.oepc.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e819bc74-d6b8-4bdd-ad28-cea6fb704c87/bin/utaipan-7li7fVZpFI/config/svcomp-Overflow-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e819bc74-d6b8-4bdd-ad28-cea6fb704c87/bin/utaipan-7li7fVZpFI --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 7db5da573de5a20455a36e013b1614f5d7f4dede9c4027ebf8a62a657a5ca5e2 --- 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-5e519f3 [2022-11-03 02:03:44,673 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-03 02:03:44,677 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-03 02:03:44,726 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-03 02:03:44,727 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-03 02:03:44,731 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-03 02:03:44,734 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-03 02:03:44,739 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-03 02:03:44,741 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-03 02:03:44,747 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-03 02:03:44,749 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-03 02:03:44,750 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-03 02:03:44,751 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-03 02:03:44,758 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-03 02:03:44,759 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-03 02:03:44,760 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-03 02:03:44,763 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-03 02:03:44,764 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-03 02:03:44,766 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-03 02:03:44,768 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-03 02:03:44,773 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-03 02:03:44,775 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-03 02:03:44,777 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-03 02:03:44,778 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-03 02:03:44,783 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-03 02:03:44,788 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-03 02:03:44,789 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-03 02:03:44,790 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-03 02:03:44,791 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-03 02:03:44,792 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-03 02:03:44,793 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-03 02:03:44,795 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-03 02:03:44,797 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-03 02:03:44,799 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-03 02:03:44,800 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-03 02:03:44,800 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-03 02:03:44,801 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-03 02:03:44,801 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-03 02:03:44,802 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-03 02:03:44,802 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-03 02:03:44,803 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-03 02:03:44,804 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e819bc74-d6b8-4bdd-ad28-cea6fb704c87/bin/utaipan-7li7fVZpFI/config/svcomp-Overflow-32bit-Taipan_Default.epf [2022-11-03 02:03:44,849 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-03 02:03:44,849 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-03 02:03:44,850 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-03 02:03:44,851 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-03 02:03:44,851 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-03 02:03:44,852 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-03 02:03:44,852 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-03 02:03:44,852 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-03 02:03:44,852 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-03 02:03:44,853 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-03 02:03:44,854 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-03 02:03:44,854 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-03 02:03:44,854 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-03 02:03:44,855 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-03 02:03:44,855 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-03 02:03:44,855 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-03 02:03:44,855 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-03 02:03:44,856 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-03 02:03:44,857 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-03 02:03:44,857 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-03 02:03:44,857 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-03 02:03:44,857 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-03 02:03:44,857 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-03 02:03:44,858 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-03 02:03:44,858 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-03 02:03:44,858 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-03 02:03:44,858 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-03 02:03:44,859 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-03 02:03:44,859 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-03 02:03:44,859 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-03 02:03:44,859 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-03 02:03:44,860 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-03 02:03:44,860 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-03 02:03:44,860 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-03 02:03:44,861 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 02:03:44,861 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-03 02:03:44,861 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-03 02:03:44,861 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-03 02:03:44,862 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-03 02:03:44,862 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-03 02:03:44,862 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-03 02:03:44,862 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-03 02:03:44,863 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-03 02:03:44,863 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_e819bc74-d6b8-4bdd-ad28-cea6fb704c87/bin/utaipan-7li7fVZpFI/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e819bc74-d6b8-4bdd-ad28-cea6fb704c87/bin/utaipan-7li7fVZpFI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7db5da573de5a20455a36e013b1614f5d7f4dede9c4027ebf8a62a657a5ca5e2 [2022-11-03 02:03:45,174 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-03 02:03:45,206 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-03 02:03:45,216 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-03 02:03:45,218 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-03 02:03:45,218 INFO L275 PluginConnector]: CDTParser initialized [2022-11-03 02:03:45,220 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e819bc74-d6b8-4bdd-ad28-cea6fb704c87/bin/utaipan-7li7fVZpFI/../../sv-benchmarks/c/pthread-wmm/safe029_power.oepc_pso.oepc_rmo.oepc.i [2022-11-03 02:03:45,285 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e819bc74-d6b8-4bdd-ad28-cea6fb704c87/bin/utaipan-7li7fVZpFI/data/c171c5804/d82c3d3003544de5a19ce321b3ccd7ac/FLAG31bb4054e [2022-11-03 02:03:45,958 INFO L306 CDTParser]: Found 1 translation units. [2022-11-03 02:03:45,958 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e819bc74-d6b8-4bdd-ad28-cea6fb704c87/sv-benchmarks/c/pthread-wmm/safe029_power.oepc_pso.oepc_rmo.oepc.i [2022-11-03 02:03:45,975 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e819bc74-d6b8-4bdd-ad28-cea6fb704c87/bin/utaipan-7li7fVZpFI/data/c171c5804/d82c3d3003544de5a19ce321b3ccd7ac/FLAG31bb4054e [2022-11-03 02:03:46,215 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e819bc74-d6b8-4bdd-ad28-cea6fb704c87/bin/utaipan-7li7fVZpFI/data/c171c5804/d82c3d3003544de5a19ce321b3ccd7ac [2022-11-03 02:03:46,218 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-03 02:03:46,219 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-03 02:03:46,221 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-03 02:03:46,221 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-03 02:03:46,225 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-03 02:03:46,226 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 02:03:46" (1/1) ... [2022-11-03 02:03:46,227 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2491262f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:03:46, skipping insertion in model container [2022-11-03 02:03:46,228 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 02:03:46" (1/1) ... [2022-11-03 02:03:46,235 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-03 02:03:46,274 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-03 02:03:46,524 WARN L230 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_e819bc74-d6b8-4bdd-ad28-cea6fb704c87/sv-benchmarks/c/pthread-wmm/safe029_power.oepc_pso.oepc_rmo.oepc.i[970,983] [2022-11-03 02:03:46,833 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 02:03:46,849 INFO L203 MainTranslator]: Completed pre-run [2022-11-03 02:03:46,862 WARN L230 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_e819bc74-d6b8-4bdd-ad28-cea6fb704c87/sv-benchmarks/c/pthread-wmm/safe029_power.oepc_pso.oepc_rmo.oepc.i[970,983] [2022-11-03 02:03:46,943 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 02:03:47,001 INFO L208 MainTranslator]: Completed translation [2022-11-03 02:03:47,003 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:03:47 WrapperNode [2022-11-03 02:03:47,003 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-03 02:03:47,004 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-03 02:03:47,005 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-03 02:03:47,005 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-03 02:03:47,014 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:03:47" (1/1) ... [2022-11-03 02:03:47,056 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:03:47" (1/1) ... [2022-11-03 02:03:47,086 INFO L138 Inliner]: procedures = 175, calls = 41, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 260 [2022-11-03 02:03:47,086 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-03 02:03:47,087 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-03 02:03:47,087 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-03 02:03:47,088 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-03 02:03:47,098 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:03:47" (1/1) ... [2022-11-03 02:03:47,098 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:03:47" (1/1) ... [2022-11-03 02:03:47,102 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:03:47" (1/1) ... [2022-11-03 02:03:47,102 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:03:47" (1/1) ... [2022-11-03 02:03:47,111 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:03:47" (1/1) ... [2022-11-03 02:03:47,114 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:03:47" (1/1) ... [2022-11-03 02:03:47,117 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:03:47" (1/1) ... [2022-11-03 02:03:47,119 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:03:47" (1/1) ... [2022-11-03 02:03:47,123 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-03 02:03:47,124 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-03 02:03:47,125 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-03 02:03:47,125 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-03 02:03:47,126 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:03:47" (1/1) ... [2022-11-03 02:03:47,133 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 02:03:47,146 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e819bc74-d6b8-4bdd-ad28-cea6fb704c87/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 02:03:47,159 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e819bc74-d6b8-4bdd-ad28-cea6fb704c87/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-03 02:03:47,177 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e819bc74-d6b8-4bdd-ad28-cea6fb704c87/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-03 02:03:47,222 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-03 02:03:47,222 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-11-03 02:03:47,222 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-03 02:03:47,222 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-03 02:03:47,223 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-03 02:03:47,223 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2022-11-03 02:03:47,223 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2022-11-03 02:03:47,223 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2022-11-03 02:03:47,223 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2022-11-03 02:03:47,224 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-03 02:03:47,224 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-11-03 02:03:47,224 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-03 02:03:47,224 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-03 02:03:47,227 WARN L209 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-03 02:03:47,379 INFO L235 CfgBuilder]: Building ICFG [2022-11-03 02:03:47,381 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-03 02:03:48,143 INFO L276 CfgBuilder]: Performing block encoding [2022-11-03 02:03:48,687 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-03 02:03:48,688 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-03 02:03:48,690 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 02:03:48 BoogieIcfgContainer [2022-11-03 02:03:48,691 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-03 02:03:48,695 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-03 02:03:48,695 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-03 02:03:48,699 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-03 02:03:48,699 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 02:03:46" (1/3) ... [2022-11-03 02:03:48,700 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@63ae4dbb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 02:03:48, skipping insertion in model container [2022-11-03 02:03:48,701 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:03:47" (2/3) ... [2022-11-03 02:03:48,701 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@63ae4dbb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 02:03:48, skipping insertion in model container [2022-11-03 02:03:48,701 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 02:03:48" (3/3) ... [2022-11-03 02:03:48,703 INFO L112 eAbstractionObserver]: Analyzing ICFG safe029_power.oepc_pso.oepc_rmo.oepc.i [2022-11-03 02:03:48,714 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-03 02:03:48,726 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-03 02:03:48,728 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2022-11-03 02:03:48,729 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-03 02:03:48,816 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-11-03 02:03:48,874 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-03 02:03:48,889 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 100 places, 95 transitions, 200 flow [2022-11-03 02:03:48,899 INFO L112 LiptonReduction]: Starting Lipton reduction on Petri net that has 100 places, 95 transitions, 200 flow [2022-11-03 02:03:48,901 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 100 places, 95 transitions, 200 flow [2022-11-03 02:03:48,972 INFO L130 PetriNetUnfolder]: 2/93 cut-off events. [2022-11-03 02:03:48,972 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-03 02:03:48,977 INFO L83 FinitePrefix]: Finished finitePrefix Result has 100 conditions, 93 events. 2/93 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 52 event pairs, 0 based on Foata normal form. 0/87 useless extension candidates. Maximal degree in co-relation 57. Up to 2 conditions per place. [2022-11-03 02:03:48,980 INFO L118 LiptonReduction]: Number of co-enabled transitions 1368 [2022-11-03 02:04:01,023 INFO L133 LiptonReduction]: Checked pairs total: 4468 [2022-11-03 02:04:01,024 INFO L135 LiptonReduction]: Total number of compositions: 87 [2022-11-03 02:04:01,033 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 28 places, 22 transitions, 54 flow [2022-11-03 02:04:01,070 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 208 states, 200 states have (on average 2.74) internal successors, (548), 207 states have internal predecessors, (548), 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) [2022-11-03 02:04:01,090 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-03 02:04:01,098 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;@650fc05d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-03 02:04:01,098 INFO L358 AbstractCegarLoop]: Starting to check reachability of 10 error locations. [2022-11-03 02:04:01,101 INFO L276 IsEmpty]: Start isEmpty. Operand has 208 states, 200 states have (on average 2.74) internal successors, (548), 207 states have internal predecessors, (548), 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) [2022-11-03 02:04:01,108 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-03 02:04:01,108 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:04:01,109 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-11-03 02:04:01,110 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2022-11-03 02:04:01,115 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:04:01,115 INFO L85 PathProgramCache]: Analyzing trace with hash 936325645, now seen corresponding path program 1 times [2022-11-03 02:04:01,126 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:04:01,127 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [513638821] [2022-11-03 02:04:01,127 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:04:01,128 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:04:01,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:04:01,555 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 02:04:01,556 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:04:01,556 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [513638821] [2022-11-03 02:04:01,557 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [513638821] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:04:01,557 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:04:01,558 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-03 02:04:01,560 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [284195273] [2022-11-03 02:04:01,563 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:04:01,567 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 02:04:01,569 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:04:01,598 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 02:04:01,598 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:04:01,602 INFO L87 Difference]: Start difference. First operand has 208 states, 200 states have (on average 2.74) internal successors, (548), 207 states have internal predecessors, (548), 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) [2022-11-03 02:04:01,733 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:04:01,735 INFO L93 Difference]: Finished difference Result 124 states and 272 transitions. [2022-11-03 02:04:01,737 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 02:04:01,738 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 [2022-11-03 02:04:01,739 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:04:01,753 INFO L225 Difference]: With dead ends: 124 [2022-11-03 02:04:01,754 INFO L226 Difference]: Without dead ends: 124 [2022-11-03 02:04:01,755 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 [2022-11-03 02:04:01,760 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 9 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 6 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-03 02:04:01,762 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 6 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-03 02:04:01,785 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 124 states. [2022-11-03 02:04:01,826 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 124 to 124. [2022-11-03 02:04:01,829 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 124 states, 120 states have (on average 2.2666666666666666) internal successors, (272), 123 states have internal predecessors, (272), 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) [2022-11-03 02:04:01,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 124 states and 272 transitions. [2022-11-03 02:04:01,837 INFO L78 Accepts]: Start accepts. Automaton has 124 states and 272 transitions. Word has length 5 [2022-11-03 02:04:01,838 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:04:01,838 INFO L495 AbstractCegarLoop]: Abstraction has 124 states and 272 transitions. [2022-11-03 02:04:01,838 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) [2022-11-03 02:04:01,839 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states and 272 transitions. [2022-11-03 02:04:01,842 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-03 02:04:01,842 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:04:01,842 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:04:01,843 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-03 02:04:01,843 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2022-11-03 02:04:01,844 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:04:01,844 INFO L85 PathProgramCache]: Analyzing trace with hash 847349217, now seen corresponding path program 1 times [2022-11-03 02:04:01,844 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:04:01,849 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [365145621] [2022-11-03 02:04:01,850 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:04:01,851 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:04:01,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:04:02,031 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 02:04:02,032 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:04:02,032 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [365145621] [2022-11-03 02:04:02,032 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [365145621] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:04:02,033 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:04:02,033 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-03 02:04:02,033 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2084030571] [2022-11-03 02:04:02,033 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:04:02,035 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-03 02:04:02,038 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:04:02,039 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-03 02:04:02,039 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-03 02:04:02,039 INFO L87 Difference]: Start difference. First operand 124 states and 272 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) [2022-11-03 02:04:02,145 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:04:02,145 INFO L93 Difference]: Finished difference Result 116 states and 258 transitions. [2022-11-03 02:04:02,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-03 02:04:02,146 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 [2022-11-03 02:04:02,146 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:04:02,147 INFO L225 Difference]: With dead ends: 116 [2022-11-03 02:04:02,147 INFO L226 Difference]: Without dead ends: 116 [2022-11-03 02:04:02,148 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 [2022-11-03 02:04:02,149 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 17 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 8 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-03 02:04:02,149 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 8 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-03 02:04:02,150 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116 states. [2022-11-03 02:04:02,156 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116 to 116. [2022-11-03 02:04:02,157 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 116 states, 114 states have (on average 2.263157894736842) internal successors, (258), 115 states have internal predecessors, (258), 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) [2022-11-03 02:04:02,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116 states to 116 states and 258 transitions. [2022-11-03 02:04:02,158 INFO L78 Accepts]: Start accepts. Automaton has 116 states and 258 transitions. Word has length 11 [2022-11-03 02:04:02,159 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:04:02,159 INFO L495 AbstractCegarLoop]: Abstraction has 116 states and 258 transitions. [2022-11-03 02:04:02,159 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) [2022-11-03 02:04:02,159 INFO L276 IsEmpty]: Start isEmpty. Operand 116 states and 258 transitions. [2022-11-03 02:04:02,160 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-11-03 02:04:02,160 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:04:02,160 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:04:02,161 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-03 02:04:02,161 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2022-11-03 02:04:02,161 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:04:02,162 INFO L85 PathProgramCache]: Analyzing trace with hash 497959127, now seen corresponding path program 1 times [2022-11-03 02:04:02,162 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:04:02,164 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [647705079] [2022-11-03 02:04:02,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:04:02,165 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:04:02,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:04:02,350 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 02:04:02,350 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:04:02,351 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [647705079] [2022-11-03 02:04:02,351 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [647705079] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:04:02,351 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:04:02,351 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-03 02:04:02,351 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [807687801] [2022-11-03 02:04:02,352 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:04:02,352 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-03 02:04:02,352 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:04:02,353 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-03 02:04:02,353 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-03 02:04:02,353 INFO L87 Difference]: Start difference. First operand 116 states and 258 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) [2022-11-03 02:04:02,414 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:04:02,414 INFO L93 Difference]: Finished difference Result 108 states and 244 transitions. [2022-11-03 02:04:02,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-03 02:04:02,415 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 [2022-11-03 02:04:02,415 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:04:02,415 INFO L225 Difference]: With dead ends: 108 [2022-11-03 02:04:02,416 INFO L226 Difference]: Without dead ends: 0 [2022-11-03 02:04:02,416 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 [2022-11-03 02:04:02,417 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 26 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 4 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-03 02:04:02,418 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 4 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-03 02:04:02,419 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-03 02:04:02,419 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-03 02:04:02,420 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) [2022-11-03 02:04:02,420 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-03 02:04:02,420 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 12 [2022-11-03 02:04:02,420 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:04:02,420 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-03 02:04:02,421 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) [2022-11-03 02:04:02,421 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-03 02:04:02,421 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-03 02:04:02,424 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 10 remaining) [2022-11-03 02:04:02,425 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 10 remaining) [2022-11-03 02:04:02,425 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 10 remaining) [2022-11-03 02:04:02,426 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 10 remaining) [2022-11-03 02:04:02,426 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (5 of 10 remaining) [2022-11-03 02:04:02,426 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 10 remaining) [2022-11-03 02:04:02,426 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 10 remaining) [2022-11-03 02:04:02,427 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 10 remaining) [2022-11-03 02:04:02,427 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 10 remaining) [2022-11-03 02:04:02,427 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 10 remaining) [2022-11-03 02:04:02,428 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-03 02:04:02,430 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2022-11-03 02:04:02,436 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-03 02:04:02,436 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-03 02:04:02,440 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 03.11 02:04:02 BasicIcfg [2022-11-03 02:04:02,440 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-03 02:04:02,441 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-03 02:04:02,441 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-03 02:04:02,441 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-03 02:04:02,442 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 02:03:48" (3/4) ... [2022-11-03 02:04:02,445 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-03 02:04:02,451 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2022-11-03 02:04:02,451 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2022-11-03 02:04:02,467 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 114 nodes and edges [2022-11-03 02:04:02,468 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 28 nodes and edges [2022-11-03 02:04:02,469 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2022-11-03 02:04:02,469 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-11-03 02:04:02,565 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e819bc74-d6b8-4bdd-ad28-cea6fb704c87/bin/utaipan-7li7fVZpFI/witness.graphml [2022-11-03 02:04:02,565 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-03 02:04:02,566 INFO L158 Benchmark]: Toolchain (without parser) took 16346.16ms. Allocated memory was 119.5MB in the beginning and 199.2MB in the end (delta: 79.7MB). Free memory was 83.4MB in the beginning and 102.8MB in the end (delta: -19.4MB). Peak memory consumption was 59.5MB. Max. memory is 16.1GB. [2022-11-03 02:04:02,566 INFO L158 Benchmark]: CDTParser took 0.27ms. Allocated memory is still 119.5MB. Free memory is still 101.1MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-03 02:04:02,567 INFO L158 Benchmark]: CACSL2BoogieTranslator took 782.54ms. Allocated memory is still 119.5MB. Free memory was 83.2MB in the beginning and 83.1MB in the end (delta: 143.4kB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-03 02:04:02,567 INFO L158 Benchmark]: Boogie Procedure Inliner took 82.27ms. Allocated memory is still 119.5MB. Free memory was 83.1MB in the beginning and 80.2MB in the end (delta: 2.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-03 02:04:02,567 INFO L158 Benchmark]: Boogie Preprocessor took 36.58ms. Allocated memory is still 119.5MB. Free memory was 80.2MB in the beginning and 78.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-03 02:04:02,568 INFO L158 Benchmark]: RCFGBuilder took 1566.31ms. Allocated memory was 119.5MB in the beginning and 153.1MB in the end (delta: 33.6MB). Free memory was 78.1MB in the beginning and 93.8MB in the end (delta: -15.7MB). Peak memory consumption was 35.3MB. Max. memory is 16.1GB. [2022-11-03 02:04:02,568 INFO L158 Benchmark]: TraceAbstraction took 13745.32ms. Allocated memory was 153.1MB in the beginning and 199.2MB in the end (delta: 46.1MB). Free memory was 92.6MB in the beginning and 108.0MB in the end (delta: -15.4MB). Peak memory consumption was 30.6MB. Max. memory is 16.1GB. [2022-11-03 02:04:02,569 INFO L158 Benchmark]: Witness Printer took 124.35ms. Allocated memory is still 199.2MB. Free memory was 107.0MB in the beginning and 102.8MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-03 02:04:02,571 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27ms. Allocated memory is still 119.5MB. Free memory is still 101.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 782.54ms. Allocated memory is still 119.5MB. Free memory was 83.2MB in the beginning and 83.1MB in the end (delta: 143.4kB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 82.27ms. Allocated memory is still 119.5MB. Free memory was 83.1MB in the beginning and 80.2MB in the end (delta: 2.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 36.58ms. Allocated memory is still 119.5MB. Free memory was 80.2MB in the beginning and 78.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 1566.31ms. Allocated memory was 119.5MB in the beginning and 153.1MB in the end (delta: 33.6MB). Free memory was 78.1MB in the beginning and 93.8MB in the end (delta: -15.7MB). Peak memory consumption was 35.3MB. Max. memory is 16.1GB. * TraceAbstraction took 13745.32ms. Allocated memory was 153.1MB in the beginning and 199.2MB in the end (delta: 46.1MB). Free memory was 92.6MB in the beginning and 108.0MB in the end (delta: -15.4MB). Peak memory consumption was 30.6MB. Max. memory is 16.1GB. * Witness Printer took 124.35ms. Allocated memory is still 199.2MB. Free memory was 107.0MB in the beginning and 102.8MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 12.1s, 100 PlacesBefore, 28 PlacesAfterwards, 95 TransitionsBefore, 22 TransitionsAfterwards, 1368 CoEnabledTransitionPairs, 7 FixpointIterations, 36 TrivialSequentialCompositions, 40 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 10 ConcurrentYvCompositions, 1 ChoiceCompositions, 87 TotalNumberOfCompositions, 4468 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 2074, positive: 1890, positive conditional: 0, positive unconditional: 1890, negative: 184, negative conditional: 0, negative unconditional: 184, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1021, positive: 983, positive conditional: 0, positive unconditional: 983, negative: 38, negative conditional: 0, negative unconditional: 38, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1021, positive: 953, positive conditional: 0, positive unconditional: 953, negative: 68, negative conditional: 0, negative unconditional: 68, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 68, positive: 30, positive conditional: 0, positive unconditional: 30, negative: 38, negative conditional: 0, negative unconditional: 38, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 653, positive: 145, positive conditional: 0, positive unconditional: 145, negative: 508, negative conditional: 0, negative unconditional: 508, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 2074, positive: 907, positive conditional: 0, positive unconditional: 907, negative: 146, negative conditional: 0, negative unconditional: 146, unknown: 1021, unknown conditional: 0, unknown unconditional: 1021] , Statistics on independence cache: Total cache size (in pairs): 100, Positive cache size: 80, Positive conditional cache size: 0, Positive unconditional cache size: 80, Negative cache size: 20, Negative conditional cache size: 0, Negative unconditional cache size: 20 - 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: 755]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 755]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 775]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 775]: 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 5 procedures, 116 locations, 10 error locations. Started 1 CEGAR loops. OverallTime: 13.6s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 12.2s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 52 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 52 mSDsluCounter, 18 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 41 mSDsCounter, 8 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 102 IncrementalHoareTripleChecker+Invalid, 110 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 8 mSolverCounterUnsat, 10 mSDtfsCounter, 102 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=208occurred in iteration=0, InterpolantAutomatonStates: 11, 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, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 28 NumberOfCodeBlocks, 28 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 25 ConstructedInterpolants, 0 QuantifiedInterpolants, 75 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 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 4 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-11-03 02:04:02,637 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e819bc74-d6b8-4bdd-ad28-cea6fb704c87/bin/utaipan-7li7fVZpFI/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