./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/pthread-wmm/safe001_power.oepc.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_b6895dca-fdf4-43a5-b6be-2fdcc0214877/bin/utaipan-I9t0OCRTmS/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6895dca-fdf4-43a5-b6be-2fdcc0214877/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_b6895dca-fdf4-43a5-b6be-2fdcc0214877/bin/utaipan-I9t0OCRTmS/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6895dca-fdf4-43a5-b6be-2fdcc0214877/bin/utaipan-I9t0OCRTmS/config/TaipanReach.xml -i ../../sv-benchmarks/c/pthread-wmm/safe001_power.oepc.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6895dca-fdf4-43a5-b6be-2fdcc0214877/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_b6895dca-fdf4-43a5-b6be-2fdcc0214877/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 67d3e2c6779f32015be5c9fe966e6a739e1c762dcde7f287ad383839eb490e84 --- 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 07:04:55,407 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-19 07:04:55,409 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-19 07:04:55,437 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-19 07:04:55,438 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-19 07:04:55,439 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-19 07:04:55,442 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-19 07:04:55,446 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-19 07:04:55,450 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-19 07:04:55,454 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-19 07:04:55,455 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-19 07:04:55,457 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-19 07:04:55,459 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-19 07:04:55,460 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-19 07:04:55,463 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-19 07:04:55,464 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-19 07:04:55,467 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-19 07:04:55,471 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-19 07:04:55,473 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-19 07:04:55,474 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-19 07:04:55,479 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-19 07:04:55,480 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-19 07:04:55,481 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-19 07:04:55,482 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-19 07:04:55,485 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-19 07:04:55,486 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-19 07:04:55,486 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-19 07:04:55,487 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-19 07:04:55,487 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-19 07:04:55,488 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-19 07:04:55,488 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-19 07:04:55,489 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-19 07:04:55,490 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-19 07:04:55,491 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-19 07:04:55,491 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-19 07:04:55,492 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-19 07:04:55,492 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-19 07:04:55,493 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-19 07:04:55,493 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-19 07:04:55,494 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-19 07:04:55,494 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-19 07:04:55,496 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6895dca-fdf4-43a5-b6be-2fdcc0214877/bin/utaipan-I9t0OCRTmS/config/svcomp-Overflow-32bit-Taipan_Default.epf [2022-11-19 07:04:55,534 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-19 07:04:55,535 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-19 07:04:55,536 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-19 07:04:55,536 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-19 07:04:55,537 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-19 07:04:55,537 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-19 07:04:55,537 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-19 07:04:55,537 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-19 07:04:55,538 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-19 07:04:55,538 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-19 07:04:55,539 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-19 07:04:55,539 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-19 07:04:55,539 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-19 07:04:55,539 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-19 07:04:55,539 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-19 07:04:55,540 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-19 07:04:55,540 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-19 07:04:55,540 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-19 07:04:55,541 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-19 07:04:55,541 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-19 07:04:55,541 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-19 07:04:55,541 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-19 07:04:55,541 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-19 07:04:55,542 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-19 07:04:55,542 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-19 07:04:55,542 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-19 07:04:55,542 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-19 07:04:55,542 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-19 07:04:55,542 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-19 07:04:55,543 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-19 07:04:55,543 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-19 07:04:55,543 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-19 07:04:55,543 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-19 07:04:55,543 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-19 07:04:55,544 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 07:04:55,544 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-19 07:04:55,544 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-19 07:04:55,544 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-19 07:04:55,546 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-19 07:04:55,546 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-19 07:04:55,546 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-19 07:04:55,546 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-19 07:04:55,546 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-19 07:04:55,546 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_b6895dca-fdf4-43a5-b6be-2fdcc0214877/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6895dca-fdf4-43a5-b6be-2fdcc0214877/bin/utaipan-I9t0OCRTmS Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 67d3e2c6779f32015be5c9fe966e6a739e1c762dcde7f287ad383839eb490e84 [2022-11-19 07:04:55,796 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-19 07:04:55,824 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-19 07:04:55,827 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-19 07:04:55,828 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-19 07:04:55,829 INFO L275 PluginConnector]: CDTParser initialized [2022-11-19 07:04:55,830 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6895dca-fdf4-43a5-b6be-2fdcc0214877/bin/utaipan-I9t0OCRTmS/../../sv-benchmarks/c/pthread-wmm/safe001_power.oepc.i [2022-11-19 07:04:55,911 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6895dca-fdf4-43a5-b6be-2fdcc0214877/bin/utaipan-I9t0OCRTmS/data/7b2c9a4ff/d27ba2126a954a9eb62453fa086e6ee6/FLAG565326a43 [2022-11-19 07:04:56,513 INFO L306 CDTParser]: Found 1 translation units. [2022-11-19 07:04:56,514 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6895dca-fdf4-43a5-b6be-2fdcc0214877/sv-benchmarks/c/pthread-wmm/safe001_power.oepc.i [2022-11-19 07:04:56,533 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6895dca-fdf4-43a5-b6be-2fdcc0214877/bin/utaipan-I9t0OCRTmS/data/7b2c9a4ff/d27ba2126a954a9eb62453fa086e6ee6/FLAG565326a43 [2022-11-19 07:04:56,818 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6895dca-fdf4-43a5-b6be-2fdcc0214877/bin/utaipan-I9t0OCRTmS/data/7b2c9a4ff/d27ba2126a954a9eb62453fa086e6ee6 [2022-11-19 07:04:56,821 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-19 07:04:56,823 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-19 07:04:56,828 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-19 07:04:56,829 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-19 07:04:56,832 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-19 07:04:56,833 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:04:56" (1/1) ... [2022-11-19 07:04:56,836 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@59394804 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:04:56, skipping insertion in model container [2022-11-19 07:04:56,836 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:04:56" (1/1) ... [2022-11-19 07:04:56,844 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-19 07:04:56,899 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-19 07:04:57,130 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_b6895dca-fdf4-43a5-b6be-2fdcc0214877/sv-benchmarks/c/pthread-wmm/safe001_power.oepc.i[995,1008] [2022-11-19 07:04:57,346 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 07:04:57,361 INFO L203 MainTranslator]: Completed pre-run [2022-11-19 07:04:57,376 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_b6895dca-fdf4-43a5-b6be-2fdcc0214877/sv-benchmarks/c/pthread-wmm/safe001_power.oepc.i[995,1008] [2022-11-19 07:04:57,440 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 07:04:57,472 INFO L208 MainTranslator]: Completed translation [2022-11-19 07:04:57,473 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:04:57 WrapperNode [2022-11-19 07:04:57,473 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-19 07:04:57,474 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-19 07:04:57,474 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-19 07:04:57,474 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-19 07:04:57,482 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:04:57" (1/1) ... [2022-11-19 07:04:57,499 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:04:57" (1/1) ... [2022-11-19 07:04:57,525 INFO L138 Inliner]: procedures = 176, calls = 84, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 170 [2022-11-19 07:04:57,525 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-19 07:04:57,526 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-19 07:04:57,526 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-19 07:04:57,527 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-19 07:04:57,544 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:04:57" (1/1) ... [2022-11-19 07:04:57,544 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:04:57" (1/1) ... [2022-11-19 07:04:57,563 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:04:57" (1/1) ... [2022-11-19 07:04:57,564 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:04:57" (1/1) ... [2022-11-19 07:04:57,575 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:04:57" (1/1) ... [2022-11-19 07:04:57,594 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:04:57" (1/1) ... [2022-11-19 07:04:57,596 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:04:57" (1/1) ... [2022-11-19 07:04:57,598 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:04:57" (1/1) ... [2022-11-19 07:04:57,603 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-19 07:04:57,603 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-19 07:04:57,604 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-19 07:04:57,604 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-19 07:04:57,620 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:04:57" (1/1) ... [2022-11-19 07:04:57,628 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 07:04:57,638 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6895dca-fdf4-43a5-b6be-2fdcc0214877/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 07:04:57,653 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6895dca-fdf4-43a5-b6be-2fdcc0214877/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-19 07:04:57,678 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6895dca-fdf4-43a5-b6be-2fdcc0214877/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-19 07:04:57,704 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-19 07:04:57,704 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-19 07:04:57,704 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-11-19 07:04:57,704 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-19 07:04:57,705 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-19 07:04:57,705 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-19 07:04:57,705 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2022-11-19 07:04:57,705 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2022-11-19 07:04:57,705 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2022-11-19 07:04:57,706 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2022-11-19 07:04:57,706 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2022-11-19 07:04:57,706 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2022-11-19 07:04:57,706 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-19 07:04:57,706 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-11-19 07:04:57,707 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-19 07:04:57,707 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-19 07:04:57,708 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 07:04:57,946 INFO L235 CfgBuilder]: Building ICFG [2022-11-19 07:04:57,948 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-19 07:04:58,545 INFO L276 CfgBuilder]: Performing block encoding [2022-11-19 07:04:59,050 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-19 07:04:59,050 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-19 07:04:59,053 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:04:59 BoogieIcfgContainer [2022-11-19 07:04:59,053 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-19 07:04:59,055 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-19 07:04:59,056 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-19 07:04:59,059 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-19 07:04:59,060 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 07:04:56" (1/3) ... [2022-11-19 07:04:59,060 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@54cf4eb5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:04:59, skipping insertion in model container [2022-11-19 07:04:59,061 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:04:57" (2/3) ... [2022-11-19 07:04:59,061 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@54cf4eb5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:04:59, skipping insertion in model container [2022-11-19 07:04:59,061 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:04:59" (3/3) ... [2022-11-19 07:04:59,062 INFO L112 eAbstractionObserver]: Analyzing ICFG safe001_power.oepc.i [2022-11-19 07:04:59,071 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-19 07:04:59,082 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-19 07:04:59,082 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2022-11-19 07:04:59,082 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-19 07:04:59,195 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-11-19 07:04:59,245 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-19 07:04:59,264 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 144 places, 136 transitions, 287 flow [2022-11-19 07:04:59,270 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 144 places, 136 transitions, 287 flow [2022-11-19 07:04:59,272 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 144 places, 136 transitions, 287 flow [2022-11-19 07:04:59,367 INFO L130 PetriNetUnfolder]: 2/133 cut-off events. [2022-11-19 07:04:59,367 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-19 07:04:59,373 INFO L83 FinitePrefix]: Finished finitePrefix Result has 143 conditions, 133 events. 2/133 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 65 event pairs, 0 based on Foata normal form. 0/125 useless extension candidates. Maximal degree in co-relation 76. Up to 2 conditions per place. [2022-11-19 07:04:59,376 INFO L119 LiptonReduction]: Number of co-enabled transitions 2464 [2022-11-19 07:05:16,180 INFO L134 LiptonReduction]: Checked pairs total: 8301 [2022-11-19 07:05:16,181 INFO L136 LiptonReduction]: Total number of compositions: 122 [2022-11-19 07:05:16,188 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 39 places, 30 transitions, 75 flow [2022-11-19 07:05:16,303 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 1270 states, 1244 states have (on average 3.5418006430868165) internal successors, (4406), 1269 states have internal predecessors, (4406), 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 07:05:16,322 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-19 07:05:16,327 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;@687555d6, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-19 07:05:16,328 INFO L358 AbstractCegarLoop]: Starting to check reachability of 15 error locations. [2022-11-19 07:05:16,333 INFO L276 IsEmpty]: Start isEmpty. Operand has 1270 states, 1244 states have (on average 3.5418006430868165) internal successors, (4406), 1269 states have internal predecessors, (4406), 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 07:05:16,338 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-11-19 07:05:16,339 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:05:16,339 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-11-19 07:05:16,340 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 07:05:16,345 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:05:16,345 INFO L85 PathProgramCache]: Analyzing trace with hash 29248315, now seen corresponding path program 1 times [2022-11-19 07:05:16,355 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:05:16,356 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1782436678] [2022-11-19 07:05:16,356 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:05:16,357 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:05:16,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:05:16,775 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 07:05:16,776 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:05:16,776 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1782436678] [2022-11-19 07:05:16,777 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1782436678] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:05:16,777 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:05:16,777 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-19 07:05:16,779 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1434526080] [2022-11-19 07:05:16,780 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:05:16,784 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 07:05:16,786 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:05:16,815 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 07:05:16,816 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 07:05:16,822 INFO L87 Difference]: Start difference. First operand has 1270 states, 1244 states have (on average 3.5418006430868165) internal successors, (4406), 1269 states have internal predecessors, (4406), 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 07:05:16,993 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:05:16,998 INFO L93 Difference]: Finished difference Result 558 states and 1441 transitions. [2022-11-19 07:05:17,000 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 07:05:17,002 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 07:05:17,002 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:05:17,025 INFO L225 Difference]: With dead ends: 558 [2022-11-19 07:05:17,027 INFO L226 Difference]: Without dead ends: 558 [2022-11-19 07:05:17,028 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 07:05:17,033 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 11 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 9 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-19 07:05:17,034 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 9 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-19 07:05:17,056 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 558 states. [2022-11-19 07:05:17,109 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 558 to 558. [2022-11-19 07:05:17,112 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 558 states, 540 states have (on average 2.6685185185185185) internal successors, (1441), 557 states have internal predecessors, (1441), 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 07:05:17,115 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 558 states to 558 states and 1441 transitions. [2022-11-19 07:05:17,116 INFO L78 Accepts]: Start accepts. Automaton has 558 states and 1441 transitions. Word has length 4 [2022-11-19 07:05:17,116 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:05:17,117 INFO L495 AbstractCegarLoop]: Abstraction has 558 states and 1441 transitions. [2022-11-19 07:05:17,117 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 07:05:17,117 INFO L276 IsEmpty]: Start isEmpty. Operand 558 states and 1441 transitions. [2022-11-19 07:05:17,118 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-11-19 07:05:17,118 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:05:17,118 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:05:17,119 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-19 07:05:17,119 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 07:05:17,119 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:05:17,120 INFO L85 PathProgramCache]: Analyzing trace with hash -133438037, now seen corresponding path program 1 times [2022-11-19 07:05:17,120 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:05:17,120 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [657792385] [2022-11-19 07:05:17,120 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:05:17,121 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:05:17,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:05:17,262 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 07:05:17,263 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:05:17,263 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [657792385] [2022-11-19 07:05:17,263 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [657792385] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:05:17,263 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:05:17,264 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-19 07:05:17,264 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2021753875] [2022-11-19 07:05:17,264 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:05:17,265 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-19 07:05:17,265 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:05:17,266 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-19 07:05:17,266 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-19 07:05:17,266 INFO L87 Difference]: Start difference. First operand 558 states and 1441 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 07:05:17,393 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:05:17,393 INFO L93 Difference]: Finished difference Result 418 states and 1071 transitions. [2022-11-19 07:05:17,393 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-19 07:05:17,394 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 07:05:17,394 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:05:17,396 INFO L225 Difference]: With dead ends: 418 [2022-11-19 07:05:17,396 INFO L226 Difference]: Without dead ends: 418 [2022-11-19 07:05:17,397 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 07:05:17,398 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 24 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 64 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 12 SdHoareTripleChecker+Invalid, 71 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 64 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-19 07:05:17,398 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 12 Invalid, 71 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 64 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-19 07:05:17,401 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 418 states. [2022-11-19 07:05:17,418 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 418 to 418. [2022-11-19 07:05:17,419 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 418 states, 412 states have (on average 2.599514563106796) internal successors, (1071), 417 states have internal predecessors, (1071), 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 07:05:17,421 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 418 states to 418 states and 1071 transitions. [2022-11-19 07:05:17,422 INFO L78 Accepts]: Start accepts. Automaton has 418 states and 1071 transitions. Word has length 10 [2022-11-19 07:05:17,422 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:05:17,422 INFO L495 AbstractCegarLoop]: Abstraction has 418 states and 1071 transitions. [2022-11-19 07:05:17,422 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 07:05:17,423 INFO L276 IsEmpty]: Start isEmpty. Operand 418 states and 1071 transitions. [2022-11-19 07:05:17,423 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-19 07:05:17,424 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:05:17,424 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:05:17,424 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-19 07:05:17,424 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 07:05:17,425 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:05:17,425 INFO L85 PathProgramCache]: Analyzing trace with hash 158387136, now seen corresponding path program 1 times [2022-11-19 07:05:17,425 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:05:17,426 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [197984250] [2022-11-19 07:05:17,426 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:05:17,426 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:05:17,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:05:17,572 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 07:05:17,572 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:05:17,572 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [197984250] [2022-11-19 07:05:17,573 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [197984250] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:05:17,573 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:05:17,573 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-19 07:05:17,573 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1773320275] [2022-11-19 07:05:17,573 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:05:17,574 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-19 07:05:17,574 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:05:17,574 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-19 07:05:17,575 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-19 07:05:17,575 INFO L87 Difference]: Start difference. First operand 418 states and 1071 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) [2022-11-19 07:05:17,690 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:05:17,690 INFO L93 Difference]: Finished difference Result 194 states and 428 transitions. [2022-11-19 07:05:17,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-19 07:05:17,691 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 [2022-11-19 07:05:17,691 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:05:17,692 INFO L225 Difference]: With dead ends: 194 [2022-11-19 07:05:17,692 INFO L226 Difference]: Without dead ends: 194 [2022-11-19 07:05:17,693 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 07:05:17,694 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 23 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 12 SdHoareTripleChecker+Invalid, 57 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-19 07:05:17,694 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 12 Invalid, 57 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-19 07:05:17,696 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 194 states. [2022-11-19 07:05:17,701 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 194 to 194. [2022-11-19 07:05:17,702 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 194 states, 191 states have (on average 2.2408376963350785) internal successors, (428), 193 states have internal predecessors, (428), 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 07:05:17,703 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 194 states to 194 states and 428 transitions. [2022-11-19 07:05:17,703 INFO L78 Accepts]: Start accepts. Automaton has 194 states and 428 transitions. Word has length 11 [2022-11-19 07:05:17,703 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:05:17,703 INFO L495 AbstractCegarLoop]: Abstraction has 194 states and 428 transitions. [2022-11-19 07:05:17,704 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) [2022-11-19 07:05:17,704 INFO L276 IsEmpty]: Start isEmpty. Operand 194 states and 428 transitions. [2022-11-19 07:05:17,705 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-11-19 07:05:17,706 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:05:17,706 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:05:17,706 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-19 07:05:17,707 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-11-19 07:05:17,707 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:05:17,707 INFO L85 PathProgramCache]: Analyzing trace with hash -1025997972, now seen corresponding path program 1 times [2022-11-19 07:05:17,707 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:05:17,708 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1718951785] [2022-11-19 07:05:17,708 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:05:17,708 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:05:17,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:05:17,873 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 07:05:17,874 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:05:17,874 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1718951785] [2022-11-19 07:05:17,874 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1718951785] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:05:17,874 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:05:17,875 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 07:05:17,875 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1833320665] [2022-11-19 07:05:17,875 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:05:17,876 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-19 07:05:17,876 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:05:17,876 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-19 07:05:17,877 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-11-19 07:05:17,877 INFO L87 Difference]: Start difference. First operand 194 states and 428 transitions. Second operand has 5 states, 4 states have (on average 4.25) internal successors, (17), 4 states have internal predecessors, (17), 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 07:05:17,969 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:05:17,970 INFO L93 Difference]: Finished difference Result 149 states and 350 transitions. [2022-11-19 07:05:17,970 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-19 07:05:17,970 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 4.25) internal successors, (17), 4 states have internal predecessors, (17), 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 17 [2022-11-19 07:05:17,971 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:05:17,971 INFO L225 Difference]: With dead ends: 149 [2022-11-19 07:05:17,971 INFO L226 Difference]: Without dead ends: 0 [2022-11-19 07:05:17,971 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 07:05:17,973 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 44 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 9 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-19 07:05:17,973 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [44 Valid, 9 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-19 07:05:17,974 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-19 07:05:17,974 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-19 07:05:17,974 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 07:05:17,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-19 07:05:17,975 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 17 [2022-11-19 07:05:17,975 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:05:17,975 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-19 07:05:17,975 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 4.25) internal successors, (17), 4 states have internal predecessors, (17), 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 07:05:17,975 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-19 07:05:17,976 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-19 07:05:17,978 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 15 remaining) [2022-11-19 07:05:17,978 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 15 remaining) [2022-11-19 07:05:17,979 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 15 remaining) [2022-11-19 07:05:17,979 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 15 remaining) [2022-11-19 07:05:17,979 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 15 remaining) [2022-11-19 07:05:17,979 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 15 remaining) [2022-11-19 07:05:17,980 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 15 remaining) [2022-11-19 07:05:17,980 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (7 of 15 remaining) [2022-11-19 07:05:17,980 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (6 of 15 remaining) [2022-11-19 07:05:17,980 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 15 remaining) [2022-11-19 07:05:17,981 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 15 remaining) [2022-11-19 07:05:17,981 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 15 remaining) [2022-11-19 07:05:17,981 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 15 remaining) [2022-11-19 07:05:17,982 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 15 remaining) [2022-11-19 07:05:17,982 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 15 remaining) [2022-11-19 07:05:17,982 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-19 07:05:17,985 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2022-11-19 07:05:17,989 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-19 07:05:17,990 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-19 07:05:17,992 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 07:05:17 BasicIcfg [2022-11-19 07:05:17,993 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-19 07:05:17,993 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-19 07:05:17,993 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-19 07:05:17,993 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-19 07:05:17,994 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:04:59" (3/4) ... [2022-11-19 07:05:17,996 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-19 07:05:18,002 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2022-11-19 07:05:18,002 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2022-11-19 07:05:18,002 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2022-11-19 07:05:18,008 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 60 nodes and edges [2022-11-19 07:05:18,009 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 19 nodes and edges [2022-11-19 07:05:18,009 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2022-11-19 07:05:18,010 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-19 07:05:18,067 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6895dca-fdf4-43a5-b6be-2fdcc0214877/bin/utaipan-I9t0OCRTmS/witness.graphml [2022-11-19 07:05:18,071 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-19 07:05:18,072 INFO L158 Benchmark]: Toolchain (without parser) took 21248.41ms. Allocated memory was 125.8MB in the beginning and 182.5MB in the end (delta: 56.6MB). Free memory was 90.2MB in the beginning and 79.1MB in the end (delta: 11.1MB). Peak memory consumption was 67.9MB. Max. memory is 16.1GB. [2022-11-19 07:05:18,072 INFO L158 Benchmark]: CDTParser took 0.24ms. Allocated memory is still 83.9MB. Free memory was 41.0MB in the beginning and 41.0MB in the end (delta: 37.4kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-19 07:05:18,073 INFO L158 Benchmark]: CACSL2BoogieTranslator took 644.84ms. Allocated memory is still 125.8MB. Free memory was 90.0MB in the beginning and 83.4MB in the end (delta: 6.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-19 07:05:18,074 INFO L158 Benchmark]: Boogie Procedure Inliner took 51.70ms. Allocated memory is still 125.8MB. Free memory was 82.8MB in the beginning and 80.0MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-19 07:05:18,074 INFO L158 Benchmark]: Boogie Preprocessor took 76.74ms. Allocated memory is still 125.8MB. Free memory was 80.0MB in the beginning and 77.3MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-19 07:05:18,075 INFO L158 Benchmark]: RCFGBuilder took 1449.67ms. Allocated memory was 125.8MB in the beginning and 151.0MB in the end (delta: 25.2MB). Free memory was 77.3MB in the beginning and 116.7MB in the end (delta: -39.4MB). Peak memory consumption was 51.5MB. Max. memory is 16.1GB. [2022-11-19 07:05:18,075 INFO L158 Benchmark]: TraceAbstraction took 18937.26ms. Allocated memory was 151.0MB in the beginning and 182.5MB in the end (delta: 31.5MB). Free memory was 115.8MB in the beginning and 84.4MB in the end (delta: 31.4MB). Peak memory consumption was 62.8MB. Max. memory is 16.1GB. [2022-11-19 07:05:18,076 INFO L158 Benchmark]: Witness Printer took 78.17ms. Allocated memory is still 182.5MB. Free memory was 84.4MB in the beginning and 79.1MB in the end (delta: 5.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2022-11-19 07:05:18,078 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24ms. Allocated memory is still 83.9MB. Free memory was 41.0MB in the beginning and 41.0MB in the end (delta: 37.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 644.84ms. Allocated memory is still 125.8MB. Free memory was 90.0MB in the beginning and 83.4MB in the end (delta: 6.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 51.70ms. Allocated memory is still 125.8MB. Free memory was 82.8MB in the beginning and 80.0MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 76.74ms. Allocated memory is still 125.8MB. Free memory was 80.0MB in the beginning and 77.3MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 1449.67ms. Allocated memory was 125.8MB in the beginning and 151.0MB in the end (delta: 25.2MB). Free memory was 77.3MB in the beginning and 116.7MB in the end (delta: -39.4MB). Peak memory consumption was 51.5MB. Max. memory is 16.1GB. * TraceAbstraction took 18937.26ms. Allocated memory was 151.0MB in the beginning and 182.5MB in the end (delta: 31.5MB). Free memory was 115.8MB in the beginning and 84.4MB in the end (delta: 31.4MB). Peak memory consumption was 62.8MB. Max. memory is 16.1GB. * Witness Printer took 78.17ms. Allocated memory is still 182.5MB. Free memory was 84.4MB in the beginning and 79.1MB in the end (delta: 5.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 16.9s, 144 PlacesBefore, 39 PlacesAfterwards, 136 TransitionsBefore, 30 TransitionsAfterwards, 2464 CoEnabledTransitionPairs, 7 FixpointIterations, 59 TrivialSequentialCompositions, 51 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 11 ConcurrentYvCompositions, 1 ChoiceCompositions, 122 TotalNumberOfCompositions, 8301 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 3424, independent: 3149, independent conditional: 0, independent unconditional: 3149, dependent: 275, dependent conditional: 0, dependent unconditional: 275, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1734, independent: 1671, independent conditional: 0, independent unconditional: 1671, dependent: 63, dependent conditional: 0, dependent unconditional: 63, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1734, independent: 1616, independent conditional: 0, independent unconditional: 1616, dependent: 118, dependent conditional: 0, dependent unconditional: 118, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 118, independent: 55, independent conditional: 0, independent unconditional: 55, dependent: 63, dependent conditional: 0, dependent unconditional: 63, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 1111, independent: 326, independent conditional: 0, independent unconditional: 326, dependent: 785, dependent conditional: 0, dependent unconditional: 785, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 3424, independent: 1478, independent conditional: 0, independent unconditional: 1478, dependent: 212, dependent conditional: 0, dependent unconditional: 212, unknown: 1734, unknown conditional: 0, unknown unconditional: 1734] , Statistics on independence cache: Total cache size (in pairs): 217, Positive cache size: 187, Positive conditional cache size: 0, Positive unconditional cache size: 187, Negative cache size: 30, Negative conditional cache size: 0, Negative unconditional cache size: 30, 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: 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: 803]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 803]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 836]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 836]: 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, 167 locations, 15 error locations. Started 1 CEGAR loops. OverallTime: 18.7s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 17.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 102 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 102 mSDsluCounter, 42 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 21 mSDsCounter, 30 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 192 IncrementalHoareTripleChecker+Invalid, 222 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 30 mSolverCounterUnsat, 21 mSDtfsCounter, 192 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=1270occurred 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, 42 NumberOfCodeBlocks, 42 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 38 ConstructedInterpolants, 0 QuantifiedInterpolants, 114 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 07:05:18,101 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6895dca-fdf4-43a5-b6be-2fdcc0214877/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