./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/pthread-wmm/safe034_power.oepc_power.opt_pso.oepc_pso.opt_rmo.oepc_rmo.opt.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 8393723b 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_2df0ea93-275b-497c-8b8c-1c1ace050487/bin/utaipan-I9t0OCRTmS/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2df0ea93-275b-497c-8b8c-1c1ace050487/bin/utaipan-I9t0OCRTmS/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2df0ea93-275b-497c-8b8c-1c1ace050487/bin/utaipan-I9t0OCRTmS/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2df0ea93-275b-497c-8b8c-1c1ace050487/bin/utaipan-I9t0OCRTmS/config/TaipanReach.xml -i ../../sv-benchmarks/c/pthread-wmm/safe034_power.oepc_power.opt_pso.oepc_pso.opt_rmo.oepc_rmo.opt.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2df0ea93-275b-497c-8b8c-1c1ace050487/bin/utaipan-I9t0OCRTmS/config/svcomp-Overflow-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2df0ea93-275b-497c-8b8c-1c1ace050487/bin/utaipan-I9t0OCRTmS --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 11eadb3d3dbb959cb5d260936a4e759de0e9c0b331e2b23d922151dc0bfe3fa5 --- 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-8393723 [2022-11-19 08:30:22,523 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-19 08:30:22,525 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-19 08:30:22,551 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-19 08:30:22,551 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-19 08:30:22,552 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-19 08:30:22,556 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-19 08:30:22,561 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-19 08:30:22,564 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-19 08:30:22,569 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-19 08:30:22,571 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-19 08:30:22,573 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-19 08:30:22,573 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-19 08:30:22,577 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-19 08:30:22,581 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-19 08:30:22,583 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-19 08:30:22,585 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-19 08:30:22,586 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-19 08:30:22,588 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-19 08:30:22,596 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-19 08:30:22,598 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-19 08:30:22,600 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-19 08:30:22,603 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-19 08:30:22,605 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-19 08:30:22,613 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-19 08:30:22,614 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-19 08:30:22,614 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-19 08:30:22,615 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-19 08:30:22,616 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-19 08:30:22,617 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-19 08:30:22,619 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-19 08:30:22,620 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-19 08:30:22,621 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-19 08:30:22,624 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-19 08:30:22,625 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-19 08:30:22,625 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-19 08:30:22,626 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-19 08:30:22,626 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-19 08:30:22,626 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-19 08:30:22,627 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-19 08:30:22,628 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-19 08:30:22,629 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2df0ea93-275b-497c-8b8c-1c1ace050487/bin/utaipan-I9t0OCRTmS/config/svcomp-Overflow-32bit-Taipan_Default.epf [2022-11-19 08:30:22,672 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-19 08:30:22,673 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-19 08:30:22,673 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-19 08:30:22,674 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-19 08:30:22,675 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-19 08:30:22,675 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-19 08:30:22,675 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-19 08:30:22,675 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-19 08:30:22,675 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-19 08:30:22,676 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-19 08:30:22,677 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-19 08:30:22,677 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-19 08:30:22,677 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-19 08:30:22,677 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-19 08:30:22,678 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-19 08:30:22,678 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-19 08:30:22,678 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-19 08:30:22,678 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-19 08:30:22,679 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-19 08:30:22,679 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-19 08:30:22,679 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-19 08:30:22,680 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-19 08:30:22,680 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-19 08:30:22,680 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-19 08:30:22,680 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-19 08:30:22,681 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-19 08:30:22,681 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-19 08:30:22,681 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-19 08:30:22,681 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-19 08:30:22,681 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-19 08:30:22,682 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-19 08:30:22,682 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-19 08:30:22,682 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-19 08:30:22,682 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-19 08:30:22,683 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 08:30:22,683 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-19 08:30:22,683 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-19 08:30:22,683 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-19 08:30:22,684 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-19 08:30:22,684 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-19 08:30:22,684 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-19 08:30:22,684 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-19 08:30:22,684 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-19 08:30:22,685 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_2df0ea93-275b-497c-8b8c-1c1ace050487/bin/utaipan-I9t0OCRTmS/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2df0ea93-275b-497c-8b8c-1c1ace050487/bin/utaipan-I9t0OCRTmS Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 11eadb3d3dbb959cb5d260936a4e759de0e9c0b331e2b23d922151dc0bfe3fa5 [2022-11-19 08:30:22,968 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-19 08:30:23,005 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-19 08:30:23,008 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-19 08:30:23,010 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-19 08:30:23,011 INFO L275 PluginConnector]: CDTParser initialized [2022-11-19 08:30:23,012 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2df0ea93-275b-497c-8b8c-1c1ace050487/bin/utaipan-I9t0OCRTmS/../../sv-benchmarks/c/pthread-wmm/safe034_power.oepc_power.opt_pso.oepc_pso.opt_rmo.oepc_rmo.opt.i [2022-11-19 08:30:23,082 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2df0ea93-275b-497c-8b8c-1c1ace050487/bin/utaipan-I9t0OCRTmS/data/8c07fb4dd/aa7269be007145e58feb41a8e607ebf0/FLAGaa549aa71 [2022-11-19 08:30:23,645 INFO L306 CDTParser]: Found 1 translation units. [2022-11-19 08:30:23,646 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2df0ea93-275b-497c-8b8c-1c1ace050487/sv-benchmarks/c/pthread-wmm/safe034_power.oepc_power.opt_pso.oepc_pso.opt_rmo.oepc_rmo.opt.i [2022-11-19 08:30:23,663 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2df0ea93-275b-497c-8b8c-1c1ace050487/bin/utaipan-I9t0OCRTmS/data/8c07fb4dd/aa7269be007145e58feb41a8e607ebf0/FLAGaa549aa71 [2022-11-19 08:30:23,901 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2df0ea93-275b-497c-8b8c-1c1ace050487/bin/utaipan-I9t0OCRTmS/data/8c07fb4dd/aa7269be007145e58feb41a8e607ebf0 [2022-11-19 08:30:23,905 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-19 08:30:23,907 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-19 08:30:23,910 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-19 08:30:23,911 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-19 08:30:23,915 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-19 08:30:23,916 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 08:30:23" (1/1) ... [2022-11-19 08:30:23,918 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4ad9b015 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:30:23, skipping insertion in model container [2022-11-19 08:30:23,918 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 08:30:23" (1/1) ... [2022-11-19 08:30:23,926 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-19 08:30:23,990 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-19 08:30:24,189 WARN L234 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_2df0ea93-275b-497c-8b8c-1c1ace050487/sv-benchmarks/c/pthread-wmm/safe034_power.oepc_power.opt_pso.oepc_pso.opt_rmo.oepc_rmo.opt.i[996,1009] [2022-11-19 08:30:24,462 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 08:30:24,472 INFO L203 MainTranslator]: Completed pre-run [2022-11-19 08:30:24,487 WARN L234 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_2df0ea93-275b-497c-8b8c-1c1ace050487/sv-benchmarks/c/pthread-wmm/safe034_power.oepc_power.opt_pso.oepc_pso.opt_rmo.oepc_rmo.opt.i[996,1009] [2022-11-19 08:30:24,563 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 08:30:24,594 INFO L208 MainTranslator]: Completed translation [2022-11-19 08:30:24,595 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:30:24 WrapperNode [2022-11-19 08:30:24,595 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-19 08:30:24,596 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-19 08:30:24,597 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-19 08:30:24,597 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-19 08:30:24,604 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:30:24" (1/1) ... [2022-11-19 08:30:24,632 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:30:24" (1/1) ... [2022-11-19 08:30:24,661 INFO L138 Inliner]: procedures = 176, calls = 58, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 130 [2022-11-19 08:30:24,661 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-19 08:30:24,662 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-19 08:30:24,662 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-19 08:30:24,662 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-19 08:30:24,672 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:30:24" (1/1) ... [2022-11-19 08:30:24,672 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:30:24" (1/1) ... [2022-11-19 08:30:24,675 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:30:24" (1/1) ... [2022-11-19 08:30:24,676 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:30:24" (1/1) ... [2022-11-19 08:30:24,683 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:30:24" (1/1) ... [2022-11-19 08:30:24,685 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:30:24" (1/1) ... [2022-11-19 08:30:24,687 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:30:24" (1/1) ... [2022-11-19 08:30:24,689 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:30:24" (1/1) ... [2022-11-19 08:30:24,692 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-19 08:30:24,693 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-19 08:30:24,693 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-19 08:30:24,693 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-19 08:30:24,694 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:30:24" (1/1) ... [2022-11-19 08:30:24,701 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 08:30:24,711 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2df0ea93-275b-497c-8b8c-1c1ace050487/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 08:30:24,723 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2df0ea93-275b-497c-8b8c-1c1ace050487/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-19 08:30:24,735 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2df0ea93-275b-497c-8b8c-1c1ace050487/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-19 08:30:24,768 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-19 08:30:24,769 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-11-19 08:30:24,769 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-19 08:30:24,769 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-19 08:30:24,769 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-19 08:30:24,769 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2022-11-19 08:30:24,769 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2022-11-19 08:30:24,769 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2022-11-19 08:30:24,770 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2022-11-19 08:30:24,770 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2022-11-19 08:30:24,770 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2022-11-19 08:30:24,770 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-19 08:30:24,770 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-11-19 08:30:24,770 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-19 08:30:24,770 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-19 08:30:24,772 WARN L209 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-19 08:30:24,976 INFO L235 CfgBuilder]: Building ICFG [2022-11-19 08:30:24,979 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-19 08:30:25,278 INFO L276 CfgBuilder]: Performing block encoding [2022-11-19 08:30:25,533 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-19 08:30:25,533 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-19 08:30:25,535 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:30:25 BoogieIcfgContainer [2022-11-19 08:30:25,545 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-19 08:30:25,547 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-19 08:30:25,548 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-19 08:30:25,551 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-19 08:30:25,551 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 08:30:23" (1/3) ... [2022-11-19 08:30:25,552 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3debfc61 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 08:30:25, skipping insertion in model container [2022-11-19 08:30:25,552 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:30:24" (2/3) ... [2022-11-19 08:30:25,553 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3debfc61 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 08:30:25, skipping insertion in model container [2022-11-19 08:30:25,553 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:30:25" (3/3) ... [2022-11-19 08:30:25,554 INFO L112 eAbstractionObserver]: Analyzing ICFG safe034_power.oepc_power.opt_pso.oepc_pso.opt_rmo.oepc_rmo.opt.i [2022-11-19 08:30:25,563 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-19 08:30:25,576 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-19 08:30:25,576 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2022-11-19 08:30:25,576 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-19 08:30:25,695 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-11-19 08:30:25,736 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-19 08:30:25,752 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 125 places, 117 transitions, 249 flow [2022-11-19 08:30:25,755 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 125 places, 117 transitions, 249 flow [2022-11-19 08:30:25,757 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 125 places, 117 transitions, 249 flow [2022-11-19 08:30:25,867 INFO L130 PetriNetUnfolder]: 2/114 cut-off events. [2022-11-19 08:30:25,867 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-19 08:30:25,874 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 71 event pairs, 0 based on Foata normal form. 0/106 useless extension candidates. Maximal degree in co-relation 75. Up to 2 conditions per place. [2022-11-19 08:30:25,879 INFO L119 LiptonReduction]: Number of co-enabled transitions 2352 [2022-11-19 08:30:31,266 INFO L134 LiptonReduction]: Checked pairs total: 7354 [2022-11-19 08:30:31,266 INFO L136 LiptonReduction]: Total number of compositions: 101 [2022-11-19 08:30:31,275 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 38 places, 29 transitions, 73 flow [2022-11-19 08:30:31,355 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 1090 states, 1064 states have (on average 3.526315789473684) internal successors, (3752), 1089 states have internal predecessors, (3752), 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) [2022-11-19 08:30:31,373 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-19 08:30:31,379 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;@76bb1ad0, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-19 08:30:31,379 INFO L358 AbstractCegarLoop]: Starting to check reachability of 15 error locations. [2022-11-19 08:30:31,385 INFO L276 IsEmpty]: Start isEmpty. Operand has 1090 states, 1064 states have (on average 3.526315789473684) internal successors, (3752), 1089 states have internal predecessors, (3752), 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) [2022-11-19 08:30:31,389 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-11-19 08:30:31,390 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:30:31,390 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-11-19 08:30:31,391 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-11-19 08:30:31,395 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:30:31,396 INFO L85 PathProgramCache]: Analyzing trace with hash 15322726, now seen corresponding path program 1 times [2022-11-19 08:30:31,405 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:30:31,406 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [698317371] [2022-11-19 08:30:31,406 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:30:31,407 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:30:31,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:30:31,738 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:30:31,739 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:30:31,739 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [698317371] [2022-11-19 08:30:31,740 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [698317371] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:30:31,740 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:30:31,740 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-19 08:30:31,742 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [698338548] [2022-11-19 08:30:31,742 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:30:31,747 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 08:30:31,749 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:30:31,775 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 08:30:31,775 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 08:30:31,780 INFO L87 Difference]: Start difference. First operand has 1090 states, 1064 states have (on average 3.526315789473684) internal successors, (3752), 1089 states have internal predecessors, (3752), 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 2.0) internal successors, (4), 2 states have internal predecessors, (4), 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) [2022-11-19 08:30:31,919 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:30:31,919 INFO L93 Difference]: Finished difference Result 598 states and 1687 transitions. [2022-11-19 08:30:31,922 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 08:30:31,924 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 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 4 [2022-11-19 08:30:31,924 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:30:31,945 INFO L225 Difference]: With dead ends: 598 [2022-11-19 08:30:31,945 INFO L226 Difference]: Without dead ends: 598 [2022-11-19 08:30:31,946 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 [2022-11-19 08:30:31,951 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 13 mSDsluCounter, 2 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 7 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-19 08:30:31,953 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 7 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-19 08:30:31,974 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 598 states. [2022-11-19 08:30:32,051 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 598 to 598. [2022-11-19 08:30:32,054 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 598 states, 580 states have (on average 2.9086206896551725) internal successors, (1687), 597 states have internal predecessors, (1687), 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) [2022-11-19 08:30:32,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 598 states to 598 states and 1687 transitions. [2022-11-19 08:30:32,081 INFO L78 Accepts]: Start accepts. Automaton has 598 states and 1687 transitions. Word has length 4 [2022-11-19 08:30:32,081 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:30:32,082 INFO L495 AbstractCegarLoop]: Abstraction has 598 states and 1687 transitions. [2022-11-19 08:30:32,082 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 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) [2022-11-19 08:30:32,082 INFO L276 IsEmpty]: Start isEmpty. Operand 598 states and 1687 transitions. [2022-11-19 08:30:32,083 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-11-19 08:30:32,083 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:30:32,083 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:30:32,084 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-19 08:30:32,084 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-11-19 08:30:32,085 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:30:32,085 INFO L85 PathProgramCache]: Analyzing trace with hash -1520950159, now seen corresponding path program 1 times [2022-11-19 08:30:32,085 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:30:32,085 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1366443134] [2022-11-19 08:30:32,085 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:30:32,086 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:30:32,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:30:32,230 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:30:32,231 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:30:32,231 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1366443134] [2022-11-19 08:30:32,231 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1366443134] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:30:32,231 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:30:32,232 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-19 08:30:32,232 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1357148419] [2022-11-19 08:30:32,232 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:30:32,233 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-19 08:30:32,233 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:30:32,234 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-19 08:30:32,234 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-19 08:30:32,234 INFO L87 Difference]: Start difference. First operand 598 states and 1687 transitions. Second operand has 4 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 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) [2022-11-19 08:30:32,342 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:30:32,342 INFO L93 Difference]: Finished difference Result 466 states and 1339 transitions. [2022-11-19 08:30:32,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-19 08:30:32,343 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 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 9 [2022-11-19 08:30:32,343 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:30:32,347 INFO L225 Difference]: With dead ends: 466 [2022-11-19 08:30:32,347 INFO L226 Difference]: Without dead ends: 466 [2022-11-19 08:30:32,347 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 [2022-11-19 08:30:32,348 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 26 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 70 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 8 SdHoareTripleChecker+Invalid, 77 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 70 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-19 08:30:32,349 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 8 Invalid, 77 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 70 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-19 08:30:32,351 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 466 states. [2022-11-19 08:30:32,363 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 466 to 466. [2022-11-19 08:30:32,364 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 466 states, 460 states have (on average 2.9108695652173915) internal successors, (1339), 465 states have internal predecessors, (1339), 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) [2022-11-19 08:30:32,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 466 states to 466 states and 1339 transitions. [2022-11-19 08:30:32,367 INFO L78 Accepts]: Start accepts. Automaton has 466 states and 1339 transitions. Word has length 9 [2022-11-19 08:30:32,368 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:30:32,368 INFO L495 AbstractCegarLoop]: Abstraction has 466 states and 1339 transitions. [2022-11-19 08:30:32,368 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 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) [2022-11-19 08:30:32,368 INFO L276 IsEmpty]: Start isEmpty. Operand 466 states and 1339 transitions. [2022-11-19 08:30:32,369 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-11-19 08:30:32,370 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:30:32,370 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:30:32,370 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-19 08:30:32,370 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-11-19 08:30:32,371 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:30:32,371 INFO L85 PathProgramCache]: Analyzing trace with hash 95184160, now seen corresponding path program 1 times [2022-11-19 08:30:32,371 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:30:32,371 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [46118393] [2022-11-19 08:30:32,371 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:30:32,372 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:30:32,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:30:32,455 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:30:32,455 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:30:32,455 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [46118393] [2022-11-19 08:30:32,456 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [46118393] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:30:32,456 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:30:32,456 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-19 08:30:32,456 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2056338699] [2022-11-19 08:30:32,456 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:30:32,457 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-19 08:30:32,457 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:30:32,457 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-19 08:30:32,457 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-19 08:30:32,458 INFO L87 Difference]: Start difference. First operand 466 states and 1339 transitions. Second operand has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 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) [2022-11-19 08:30:32,565 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:30:32,565 INFO L93 Difference]: Finished difference Result 370 states and 1078 transitions. [2022-11-19 08:30:32,565 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-19 08:30:32,566 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 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 10 [2022-11-19 08:30:32,566 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:30:32,568 INFO L225 Difference]: With dead ends: 370 [2022-11-19 08:30:32,569 INFO L226 Difference]: Without dead ends: 370 [2022-11-19 08:30:32,569 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 [2022-11-19 08:30:32,570 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 35 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 9 SdHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-19 08:30:32,571 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [35 Valid, 9 Invalid, 53 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-19 08:30:32,573 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 370 states. [2022-11-19 08:30:32,581 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 370 to 370. [2022-11-19 08:30:32,583 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 370 states, 367 states have (on average 2.9373297002724796) internal successors, (1078), 369 states have internal predecessors, (1078), 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) [2022-11-19 08:30:32,585 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 370 states to 370 states and 1078 transitions. [2022-11-19 08:30:32,585 INFO L78 Accepts]: Start accepts. Automaton has 370 states and 1078 transitions. Word has length 10 [2022-11-19 08:30:32,585 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:30:32,586 INFO L495 AbstractCegarLoop]: Abstraction has 370 states and 1078 transitions. [2022-11-19 08:30:32,586 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 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) [2022-11-19 08:30:32,586 INFO L276 IsEmpty]: Start isEmpty. Operand 370 states and 1078 transitions. [2022-11-19 08:30:32,589 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-11-19 08:30:32,589 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:30:32,589 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:30:32,590 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-19 08:30:32,591 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-11-19 08:30:32,591 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:30:32,592 INFO L85 PathProgramCache]: Analyzing trace with hash 2026655918, now seen corresponding path program 1 times [2022-11-19 08:30:32,594 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:30:32,594 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [670627351] [2022-11-19 08:30:32,594 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:30:32,595 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:30:32,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:30:32,823 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:30:32,823 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:30:32,823 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [670627351] [2022-11-19 08:30:32,824 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [670627351] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:30:32,824 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:30:32,824 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 08:30:32,824 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [992294796] [2022-11-19 08:30:32,825 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:30:32,825 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-19 08:30:32,825 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:30:32,826 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-19 08:30:32,826 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-11-19 08:30:32,826 INFO L87 Difference]: Start difference. First operand 370 states and 1078 transitions. Second operand has 5 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 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) [2022-11-19 08:30:32,918 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:30:32,918 INFO L93 Difference]: Finished difference Result 358 states and 1057 transitions. [2022-11-19 08:30:32,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-19 08:30:32,919 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 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 16 [2022-11-19 08:30:32,919 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:30:32,919 INFO L225 Difference]: With dead ends: 358 [2022-11-19 08:30:32,919 INFO L226 Difference]: Without dead ends: 0 [2022-11-19 08:30:32,920 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 [2022-11-19 08:30:32,921 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 51 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 6 SdHoareTripleChecker+Invalid, 55 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-19 08:30:32,921 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [51 Valid, 6 Invalid, 55 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-19 08:30:32,922 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-19 08:30:32,922 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-19 08:30:32,922 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) [2022-11-19 08:30:32,922 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-19 08:30:32,922 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 16 [2022-11-19 08:30:32,922 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:30:32,923 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-19 08:30:32,923 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 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) [2022-11-19 08:30:32,923 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-19 08:30:32,923 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-19 08:30:32,926 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 15 remaining) [2022-11-19 08:30:32,926 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 15 remaining) [2022-11-19 08:30:32,926 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 15 remaining) [2022-11-19 08:30:32,927 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 15 remaining) [2022-11-19 08:30:32,927 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 15 remaining) [2022-11-19 08:30:32,927 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 15 remaining) [2022-11-19 08:30:32,927 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 15 remaining) [2022-11-19 08:30:32,928 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (7 of 15 remaining) [2022-11-19 08:30:32,928 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (6 of 15 remaining) [2022-11-19 08:30:32,928 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 15 remaining) [2022-11-19 08:30:32,946 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 15 remaining) [2022-11-19 08:30:32,946 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 15 remaining) [2022-11-19 08:30:32,946 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 15 remaining) [2022-11-19 08:30:32,947 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 15 remaining) [2022-11-19 08:30:32,947 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 15 remaining) [2022-11-19 08:30:32,947 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-19 08:30:32,949 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2022-11-19 08:30:32,954 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-19 08:30:32,955 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-19 08:30:32,957 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 08:30:32 BasicIcfg [2022-11-19 08:30:32,957 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-19 08:30:32,958 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-19 08:30:32,958 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-19 08:30:32,958 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-19 08:30:32,959 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:30:25" (3/4) ... [2022-11-19 08:30:32,961 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-19 08:30:32,966 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2022-11-19 08:30:32,967 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2022-11-19 08:30:32,967 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2022-11-19 08:30:32,971 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 20 nodes and edges [2022-11-19 08:30:32,972 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2022-11-19 08:30:32,972 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-11-19 08:30:32,972 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-19 08:30:33,011 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2df0ea93-275b-497c-8b8c-1c1ace050487/bin/utaipan-I9t0OCRTmS/witness.graphml [2022-11-19 08:30:33,014 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-19 08:30:33,014 INFO L158 Benchmark]: Toolchain (without parser) took 9107.40ms. Allocated memory was 123.7MB in the beginning and 151.0MB in the end (delta: 27.3MB). Free memory was 88.2MB in the beginning and 116.3MB in the end (delta: -28.1MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-19 08:30:33,015 INFO L158 Benchmark]: CDTParser took 0.30ms. Allocated memory is still 123.7MB. Free memory was 96.2MB in the beginning and 96.1MB in the end (delta: 30.2kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-19 08:30:33,016 INFO L158 Benchmark]: CACSL2BoogieTranslator took 685.25ms. Allocated memory is still 123.7MB. Free memory was 87.9MB in the beginning and 86.6MB in the end (delta: 1.3MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-11-19 08:30:33,016 INFO L158 Benchmark]: Boogie Procedure Inliner took 65.00ms. Allocated memory is still 123.7MB. Free memory was 86.6MB in the beginning and 84.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-19 08:30:33,016 INFO L158 Benchmark]: Boogie Preprocessor took 30.08ms. Allocated memory is still 123.7MB. Free memory was 84.6MB in the beginning and 82.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-19 08:30:33,016 INFO L158 Benchmark]: RCFGBuilder took 853.02ms. Allocated memory is still 123.7MB. Free memory was 82.5MB in the beginning and 51.7MB in the end (delta: 30.8MB). Peak memory consumption was 31.5MB. Max. memory is 16.1GB. [2022-11-19 08:30:33,017 INFO L158 Benchmark]: TraceAbstraction took 7410.06ms. Allocated memory was 123.7MB in the beginning and 151.0MB in the end (delta: 27.3MB). Free memory was 51.0MB in the beginning and 118.4MB in the end (delta: -67.4MB). Peak memory consumption was 47.2MB. Max. memory is 16.1GB. [2022-11-19 08:30:33,017 INFO L158 Benchmark]: Witness Printer took 55.73ms. Allocated memory is still 151.0MB. Free memory was 118.4MB in the beginning and 116.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-19 08:30:33,020 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30ms. Allocated memory is still 123.7MB. Free memory was 96.2MB in the beginning and 96.1MB in the end (delta: 30.2kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 685.25ms. Allocated memory is still 123.7MB. Free memory was 87.9MB in the beginning and 86.6MB in the end (delta: 1.3MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 65.00ms. Allocated memory is still 123.7MB. Free memory was 86.6MB in the beginning and 84.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 30.08ms. Allocated memory is still 123.7MB. Free memory was 84.6MB in the beginning and 82.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 853.02ms. Allocated memory is still 123.7MB. Free memory was 82.5MB in the beginning and 51.7MB in the end (delta: 30.8MB). Peak memory consumption was 31.5MB. Max. memory is 16.1GB. * TraceAbstraction took 7410.06ms. Allocated memory was 123.7MB in the beginning and 151.0MB in the end (delta: 27.3MB). Free memory was 51.0MB in the beginning and 118.4MB in the end (delta: -67.4MB). Peak memory consumption was 47.2MB. Max. memory is 16.1GB. * Witness Printer took 55.73ms. Allocated memory is still 151.0MB. Free memory was 118.4MB in the beginning and 116.3MB in the end (delta: 2.1MB). 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: 5.5s, 125 PlacesBefore, 38 PlacesAfterwards, 117 TransitionsBefore, 29 TransitionsAfterwards, 2352 CoEnabledTransitionPairs, 7 FixpointIterations, 41 TrivialSequentialCompositions, 50 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 9 ConcurrentYvCompositions, 1 ChoiceCompositions, 101 TotalNumberOfCompositions, 7354 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 3069, independent: 2835, independent conditional: 0, independent unconditional: 2835, dependent: 234, dependent conditional: 0, dependent unconditional: 234, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1639, independent: 1583, independent conditional: 0, independent unconditional: 1583, dependent: 56, dependent conditional: 0, dependent unconditional: 56, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1639, independent: 1551, independent conditional: 0, independent unconditional: 1551, dependent: 88, dependent conditional: 0, dependent unconditional: 88, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 88, independent: 32, independent conditional: 0, independent unconditional: 32, dependent: 56, dependent conditional: 0, dependent unconditional: 56, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 452, independent: 83, independent conditional: 0, independent unconditional: 83, dependent: 370, dependent conditional: 0, dependent unconditional: 370, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 3069, independent: 1252, independent conditional: 0, independent unconditional: 1252, dependent: 178, dependent conditional: 0, dependent unconditional: 178, unknown: 1639, unknown conditional: 0, unknown unconditional: 1639] , Statistics on independence cache: Total cache size (in pairs): 146, Positive cache size: 125, Positive conditional cache size: 0, Positive unconditional cache size: 125, Negative cache size: 21, Negative conditional cache size: 0, Negative unconditional cache size: 21, 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: 753]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 753]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 783]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 783]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 812]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 812]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 147 locations, 15 error locations. Started 1 CEGAR loops. OverallTime: 7.2s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 5.6s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 125 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 125 mSDsluCounter, 30 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 14 mSDsCounter, 27 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 204 IncrementalHoareTripleChecker+Invalid, 231 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 27 mSolverCounterUnsat, 16 mSDtfsCounter, 204 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=1090occurred 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, 0.6s InterpolantComputationTime, 39 NumberOfCodeBlocks, 39 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 35 ConstructedInterpolants, 0 QuantifiedInterpolants, 105 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 6 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-11-19 08:30:33,054 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2df0ea93-275b-497c-8b8c-1c1ace050487/bin/utaipan-I9t0OCRTmS/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