./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/goblint-regression/13-privatized_27-multiple-protecting2_true.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_b98dd313-f68d-40a1-b1d8-627025e28f8b/bin/utaipan-I9t0OCRTmS/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b98dd313-f68d-40a1-b1d8-627025e28f8b/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_b98dd313-f68d-40a1-b1d8-627025e28f8b/bin/utaipan-I9t0OCRTmS/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b98dd313-f68d-40a1-b1d8-627025e28f8b/bin/utaipan-I9t0OCRTmS/config/TaipanReach.xml -i ../../sv-benchmarks/c/goblint-regression/13-privatized_27-multiple-protecting2_true.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b98dd313-f68d-40a1-b1d8-627025e28f8b/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_b98dd313-f68d-40a1-b1d8-627025e28f8b/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 2d0b9c4fc8b0005fb250fdf1ff8e25835b95e676b1936e4f5fe1cf72245ee5f5 --- 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 07:51:15,493 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-19 07:51:15,494 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-19 07:51:15,515 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-19 07:51:15,516 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-19 07:51:15,517 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-19 07:51:15,518 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-19 07:51:15,520 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-19 07:51:15,528 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-19 07:51:15,533 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-19 07:51:15,535 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-19 07:51:15,536 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-19 07:51:15,538 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-19 07:51:15,542 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-19 07:51:15,544 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-19 07:51:15,547 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-19 07:51:15,549 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-19 07:51:15,550 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-19 07:51:15,558 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-19 07:51:15,560 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-19 07:51:15,561 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-19 07:51:15,565 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-19 07:51:15,567 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-19 07:51:15,568 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-19 07:51:15,573 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-19 07:51:15,576 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-19 07:51:15,577 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-19 07:51:15,578 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-19 07:51:15,579 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-19 07:51:15,580 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-19 07:51:15,581 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-19 07:51:15,582 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-19 07:51:15,583 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-19 07:51:15,585 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-19 07:51:15,586 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-19 07:51:15,587 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-19 07:51:15,588 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-19 07:51:15,589 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-19 07:51:15,589 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-19 07:51:15,590 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-19 07:51:15,590 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-19 07:51:15,591 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b98dd313-f68d-40a1-b1d8-627025e28f8b/bin/utaipan-I9t0OCRTmS/config/svcomp-Overflow-32bit-Taipan_Default.epf [2022-11-19 07:51:15,623 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-19 07:51:15,626 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-19 07:51:15,626 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-19 07:51:15,627 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-19 07:51:15,627 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-19 07:51:15,628 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-19 07:51:15,628 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-19 07:51:15,629 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-19 07:51:15,629 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-19 07:51:15,629 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-19 07:51:15,630 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-19 07:51:15,631 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-19 07:51:15,631 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-19 07:51:15,631 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-19 07:51:15,631 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-19 07:51:15,632 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-19 07:51:15,632 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-19 07:51:15,632 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-19 07:51:15,633 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-19 07:51:15,633 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-19 07:51:15,633 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-19 07:51:15,634 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-19 07:51:15,634 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-19 07:51:15,635 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-19 07:51:15,636 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-19 07:51:15,636 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-19 07:51:15,636 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-19 07:51:15,636 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-19 07:51:15,637 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-19 07:51:15,637 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-19 07:51:15,637 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-19 07:51:15,637 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-19 07:51:15,638 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-19 07:51:15,638 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-19 07:51:15,638 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 07:51:15,638 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-19 07:51:15,639 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-19 07:51:15,639 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-19 07:51:15,639 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-19 07:51:15,639 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-19 07:51:15,640 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-19 07:51:15,640 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-19 07:51:15,640 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-19 07:51:15,640 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_b98dd313-f68d-40a1-b1d8-627025e28f8b/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b98dd313-f68d-40a1-b1d8-627025e28f8b/bin/utaipan-I9t0OCRTmS Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2d0b9c4fc8b0005fb250fdf1ff8e25835b95e676b1936e4f5fe1cf72245ee5f5 [2022-11-19 07:51:15,949 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-19 07:51:15,969 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-19 07:51:15,978 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-19 07:51:15,979 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-19 07:51:15,980 INFO L275 PluginConnector]: CDTParser initialized [2022-11-19 07:51:15,992 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b98dd313-f68d-40a1-b1d8-627025e28f8b/bin/utaipan-I9t0OCRTmS/../../sv-benchmarks/c/goblint-regression/13-privatized_27-multiple-protecting2_true.i [2022-11-19 07:51:16,054 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b98dd313-f68d-40a1-b1d8-627025e28f8b/bin/utaipan-I9t0OCRTmS/data/4119a12d8/5a99ee5a53f640fc87c0e381fe8e19e6/FLAG83402545b [2022-11-19 07:51:16,618 INFO L306 CDTParser]: Found 1 translation units. [2022-11-19 07:51:16,619 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b98dd313-f68d-40a1-b1d8-627025e28f8b/sv-benchmarks/c/goblint-regression/13-privatized_27-multiple-protecting2_true.i [2022-11-19 07:51:16,631 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b98dd313-f68d-40a1-b1d8-627025e28f8b/bin/utaipan-I9t0OCRTmS/data/4119a12d8/5a99ee5a53f640fc87c0e381fe8e19e6/FLAG83402545b [2022-11-19 07:51:16,931 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b98dd313-f68d-40a1-b1d8-627025e28f8b/bin/utaipan-I9t0OCRTmS/data/4119a12d8/5a99ee5a53f640fc87c0e381fe8e19e6 [2022-11-19 07:51:16,933 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-19 07:51:16,935 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-19 07:51:16,939 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-19 07:51:16,939 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-19 07:51:16,942 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-19 07:51:16,943 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:51:16" (1/1) ... [2022-11-19 07:51:16,944 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@69810663 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:51:16, skipping insertion in model container [2022-11-19 07:51:16,944 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:51:16" (1/1) ... [2022-11-19 07:51:16,951 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-19 07:51:16,985 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-19 07:51:17,215 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_b98dd313-f68d-40a1-b1d8-627025e28f8b/sv-benchmarks/c/goblint-regression/13-privatized_27-multiple-protecting2_true.i[1097,1110] [2022-11-19 07:51:17,436 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 07:51:17,457 INFO L203 MainTranslator]: Completed pre-run [2022-11-19 07:51:17,472 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_b98dd313-f68d-40a1-b1d8-627025e28f8b/sv-benchmarks/c/goblint-regression/13-privatized_27-multiple-protecting2_true.i[1097,1110] [2022-11-19 07:51:17,522 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 07:51:17,564 INFO L208 MainTranslator]: Completed translation [2022-11-19 07:51:17,564 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:51:17 WrapperNode [2022-11-19 07:51:17,564 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-19 07:51:17,566 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-19 07:51:17,566 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-19 07:51:17,566 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-19 07:51:17,574 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:51:17" (1/1) ... [2022-11-19 07:51:17,601 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:51:17" (1/1) ... [2022-11-19 07:51:17,643 INFO L138 Inliner]: procedures = 163, calls = 52, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 104 [2022-11-19 07:51:17,643 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-19 07:51:17,644 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-19 07:51:17,645 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-19 07:51:17,645 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-19 07:51:17,655 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:51:17" (1/1) ... [2022-11-19 07:51:17,656 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:51:17" (1/1) ... [2022-11-19 07:51:17,672 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:51:17" (1/1) ... [2022-11-19 07:51:17,673 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:51:17" (1/1) ... [2022-11-19 07:51:17,679 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:51:17" (1/1) ... [2022-11-19 07:51:17,690 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:51:17" (1/1) ... [2022-11-19 07:51:17,692 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:51:17" (1/1) ... [2022-11-19 07:51:17,693 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:51:17" (1/1) ... [2022-11-19 07:51:17,695 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-19 07:51:17,706 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-19 07:51:17,706 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-19 07:51:17,707 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-19 07:51:17,708 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:51:17" (1/1) ... [2022-11-19 07:51:17,714 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 07:51:17,727 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b98dd313-f68d-40a1-b1d8-627025e28f8b/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 07:51:17,746 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b98dd313-f68d-40a1-b1d8-627025e28f8b/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-19 07:51:17,774 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b98dd313-f68d-40a1-b1d8-627025e28f8b/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-19 07:51:17,791 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-19 07:51:17,791 INFO L130 BoogieDeclarations]: Found specification of procedure t2_fun [2022-11-19 07:51:17,791 INFO L138 BoogieDeclarations]: Found implementation of procedure t2_fun [2022-11-19 07:51:17,791 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-19 07:51:17,792 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-11-19 07:51:17,792 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-19 07:51:17,792 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-19 07:51:17,792 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-11-19 07:51:17,792 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-11-19 07:51:17,792 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-19 07:51:17,793 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-19 07:51:17,793 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-19 07:51:17,793 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-19 07:51:17,795 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 07:51:17,954 INFO L235 CfgBuilder]: Building ICFG [2022-11-19 07:51:17,956 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-19 07:51:18,248 INFO L276 CfgBuilder]: Performing block encoding [2022-11-19 07:51:18,255 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-19 07:51:18,256 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-19 07:51:18,258 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:51:18 BoogieIcfgContainer [2022-11-19 07:51:18,258 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-19 07:51:18,260 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-19 07:51:18,260 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-19 07:51:18,263 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-19 07:51:18,264 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 07:51:16" (1/3) ... [2022-11-19 07:51:18,264 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@198d830e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:51:18, skipping insertion in model container [2022-11-19 07:51:18,265 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:51:17" (2/3) ... [2022-11-19 07:51:18,265 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@198d830e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:51:18, skipping insertion in model container [2022-11-19 07:51:18,265 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:51:18" (3/3) ... [2022-11-19 07:51:18,266 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_27-multiple-protecting2_true.i [2022-11-19 07:51:18,274 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-19 07:51:18,284 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-19 07:51:18,284 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2022-11-19 07:51:18,285 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-19 07:51:18,435 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-11-19 07:51:18,471 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-19 07:51:18,487 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 174 places, 171 transitions, 358 flow [2022-11-19 07:51:18,490 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 174 places, 171 transitions, 358 flow [2022-11-19 07:51:18,492 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 174 places, 171 transitions, 358 flow [2022-11-19 07:51:18,594 INFO L130 PetriNetUnfolder]: 4/169 cut-off events. [2022-11-19 07:51:18,594 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-11-19 07:51:18,601 INFO L83 FinitePrefix]: Finished finitePrefix Result has 178 conditions, 169 events. 4/169 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 190 event pairs, 0 based on Foata normal form. 0/157 useless extension candidates. Maximal degree in co-relation 117. Up to 2 conditions per place. [2022-11-19 07:51:18,607 INFO L119 LiptonReduction]: Number of co-enabled transitions 7748 [2022-11-19 07:51:25,152 INFO L134 LiptonReduction]: Checked pairs total: 24737 [2022-11-19 07:51:25,152 INFO L136 LiptonReduction]: Total number of compositions: 160 [2022-11-19 07:51:25,161 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 57 places, 54 transitions, 124 flow [2022-11-19 07:51:25,295 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 2647 states, 2623 states have (on average 3.0141059855127716) internal successors, (7906), 2646 states have internal predecessors, (7906), 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 07:51:25,313 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-19 07:51:25,319 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;@4f56019c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-19 07:51:25,320 INFO L358 AbstractCegarLoop]: Starting to check reachability of 18 error locations. [2022-11-19 07:51:25,329 INFO L276 IsEmpty]: Start isEmpty. Operand has 2647 states, 2623 states have (on average 3.0141059855127716) internal successors, (7906), 2646 states have internal predecessors, (7906), 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 07:51:25,334 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-11-19 07:51:25,334 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:51:25,335 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-11-19 07:51:25,336 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [t2_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2022-11-19 07:51:25,340 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:51:25,341 INFO L85 PathProgramCache]: Analyzing trace with hash 18496423, now seen corresponding path program 1 times [2022-11-19 07:51:25,350 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:51:25,351 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [611956043] [2022-11-19 07:51:25,351 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:51:25,352 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:51:25,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:51:25,683 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 07:51:25,683 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:51:25,684 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [611956043] [2022-11-19 07:51:25,684 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [611956043] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:51:25,685 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:51:25,685 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-19 07:51:25,687 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2040050725] [2022-11-19 07:51:25,687 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:51:25,691 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 07:51:25,693 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:51:25,718 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 07:51:25,718 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 07:51:25,728 INFO L87 Difference]: Start difference. First operand has 2647 states, 2623 states have (on average 3.0141059855127716) internal successors, (7906), 2646 states have internal predecessors, (7906), 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 07:51:25,959 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:51:25,960 INFO L93 Difference]: Finished difference Result 3451 states and 9004 transitions. [2022-11-19 07:51:25,961 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 07:51:25,962 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 07:51:25,963 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:51:25,994 INFO L225 Difference]: With dead ends: 3451 [2022-11-19 07:51:25,995 INFO L226 Difference]: Without dead ends: 3339 [2022-11-19 07:51:25,995 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 07:51:25,998 INFO L413 NwaCegarLoop]: 7 mSDtfsCounter, 37 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 79 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 11 SdHoareTripleChecker+Invalid, 84 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 79 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-19 07:51:25,999 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [37 Valid, 11 Invalid, 84 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 79 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-19 07:51:26,025 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3339 states. [2022-11-19 07:51:26,120 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3339 to 2453. [2022-11-19 07:51:26,128 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2453 states, 2439 states have (on average 2.7527675276752768) internal successors, (6714), 2452 states have internal predecessors, (6714), 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 07:51:26,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2453 states to 2453 states and 6714 transitions. [2022-11-19 07:51:26,142 INFO L78 Accepts]: Start accepts. Automaton has 2453 states and 6714 transitions. Word has length 4 [2022-11-19 07:51:26,142 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:51:26,143 INFO L495 AbstractCegarLoop]: Abstraction has 2453 states and 6714 transitions. [2022-11-19 07:51:26,143 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 07:51:26,144 INFO L276 IsEmpty]: Start isEmpty. Operand 2453 states and 6714 transitions. [2022-11-19 07:51:26,144 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-11-19 07:51:26,144 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:51:26,144 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-11-19 07:51:26,145 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-19 07:51:26,145 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting t2_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [t2_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2022-11-19 07:51:26,146 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:51:26,146 INFO L85 PathProgramCache]: Analyzing trace with hash 595970486, now seen corresponding path program 1 times [2022-11-19 07:51:26,146 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:51:26,146 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1000528811] [2022-11-19 07:51:26,147 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:51:26,147 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:51:26,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:51:26,231 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 07:51:26,232 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:51:26,232 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1000528811] [2022-11-19 07:51:26,232 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1000528811] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:51:26,232 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:51:26,233 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-19 07:51:26,233 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [801073125] [2022-11-19 07:51:26,233 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:51:26,234 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 07:51:26,234 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:51:26,235 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 07:51:26,235 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 07:51:26,235 INFO L87 Difference]: Start difference. First operand 2453 states and 6714 transitions. Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 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 07:51:26,357 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:51:26,357 INFO L93 Difference]: Finished difference Result 2236 states and 6095 transitions. [2022-11-19 07:51:26,358 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 07:51:26,358 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 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 6 [2022-11-19 07:51:26,358 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:51:26,369 INFO L225 Difference]: With dead ends: 2236 [2022-11-19 07:51:26,370 INFO L226 Difference]: Without dead ends: 2236 [2022-11-19 07:51:26,370 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 07:51:26,371 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 30 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 68 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 10 SdHoareTripleChecker+Invalid, 69 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 68 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-19 07:51:26,372 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 10 Invalid, 69 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 68 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-19 07:51:26,379 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2236 states. [2022-11-19 07:51:26,461 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2236 to 2236. [2022-11-19 07:51:26,467 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2236 states, 2225 states have (on average 2.7393258426966294) internal successors, (6095), 2235 states have internal predecessors, (6095), 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 07:51:26,476 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2236 states to 2236 states and 6095 transitions. [2022-11-19 07:51:26,476 INFO L78 Accepts]: Start accepts. Automaton has 2236 states and 6095 transitions. Word has length 6 [2022-11-19 07:51:26,477 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:51:26,477 INFO L495 AbstractCegarLoop]: Abstraction has 2236 states and 6095 transitions. [2022-11-19 07:51:26,478 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 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 07:51:26,478 INFO L276 IsEmpty]: Start isEmpty. Operand 2236 states and 6095 transitions. [2022-11-19 07:51:26,478 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-11-19 07:51:26,478 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:51:26,478 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-11-19 07:51:26,479 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-19 07:51:26,479 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting t2_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [t2_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2022-11-19 07:51:26,479 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:51:26,479 INFO L85 PathProgramCache]: Analyzing trace with hash 595970487, now seen corresponding path program 1 times [2022-11-19 07:51:26,480 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:51:26,480 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [695299241] [2022-11-19 07:51:26,480 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:51:26,480 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:51:26,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:51:26,530 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 07:51:26,530 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:51:26,530 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [695299241] [2022-11-19 07:51:26,531 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [695299241] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:51:26,531 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:51:26,531 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-19 07:51:26,531 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [386904751] [2022-11-19 07:51:26,531 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:51:26,532 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 07:51:26,532 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:51:26,532 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 07:51:26,533 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 07:51:26,533 INFO L87 Difference]: Start difference. First operand 2236 states and 6095 transitions. Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 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 07:51:26,624 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:51:26,624 INFO L93 Difference]: Finished difference Result 2019 states and 5476 transitions. [2022-11-19 07:51:26,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 07:51:26,625 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 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 6 [2022-11-19 07:51:26,625 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:51:26,634 INFO L225 Difference]: With dead ends: 2019 [2022-11-19 07:51:26,635 INFO L226 Difference]: Without dead ends: 2019 [2022-11-19 07:51:26,635 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 07:51:26,636 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 29 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 10 SdHoareTripleChecker+Invalid, 68 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-19 07:51:26,636 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [29 Valid, 10 Invalid, 68 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-19 07:51:26,643 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2019 states. [2022-11-19 07:51:26,681 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2019 to 2019. [2022-11-19 07:51:26,686 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2019 states, 2011 states have (on average 2.7230233714569865) internal successors, (5476), 2018 states have internal predecessors, (5476), 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 07:51:26,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2019 states to 2019 states and 5476 transitions. [2022-11-19 07:51:26,694 INFO L78 Accepts]: Start accepts. Automaton has 2019 states and 5476 transitions. Word has length 6 [2022-11-19 07:51:26,694 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:51:26,695 INFO L495 AbstractCegarLoop]: Abstraction has 2019 states and 5476 transitions. [2022-11-19 07:51:26,695 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 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 07:51:26,695 INFO L276 IsEmpty]: Start isEmpty. Operand 2019 states and 5476 transitions. [2022-11-19 07:51:26,695 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-11-19 07:51:26,696 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:51:26,696 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:51:26,696 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-19 07:51:26,696 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [t2_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2022-11-19 07:51:26,697 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:51:26,697 INFO L85 PathProgramCache]: Analyzing trace with hash 1270475415, now seen corresponding path program 1 times [2022-11-19 07:51:26,697 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:51:26,697 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [650336258] [2022-11-19 07:51:26,697 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:51:26,697 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:51:26,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:51:26,772 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 07:51:26,772 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:51:26,772 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [650336258] [2022-11-19 07:51:26,772 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [650336258] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:51:26,772 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:51:26,773 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 07:51:26,773 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1938420688] [2022-11-19 07:51:26,773 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:51:26,773 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-19 07:51:26,773 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:51:26,774 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-19 07:51:26,774 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-19 07:51:26,774 INFO L87 Difference]: Start difference. First operand 2019 states and 5476 transitions. Second operand has 5 states, 4 states have (on average 1.75) internal successors, (7), 4 states have internal predecessors, (7), 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 07:51:27,066 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:51:27,067 INFO L93 Difference]: Finished difference Result 1942 states and 5076 transitions. [2022-11-19 07:51:27,067 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-19 07:51:27,067 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 1.75) internal successors, (7), 4 states have internal predecessors, (7), 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 7 [2022-11-19 07:51:27,067 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:51:27,076 INFO L225 Difference]: With dead ends: 1942 [2022-11-19 07:51:27,077 INFO L226 Difference]: Without dead ends: 1942 [2022-11-19 07:51:27,077 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-19 07:51:27,078 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 89 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 244 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 89 SdHoareTripleChecker+Valid, 29 SdHoareTripleChecker+Invalid, 248 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 244 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-19 07:51:27,078 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [89 Valid, 29 Invalid, 248 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 244 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-19 07:51:27,084 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1942 states. [2022-11-19 07:51:27,123 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1942 to 1634. [2022-11-19 07:51:27,143 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1634 states, 1623 states have (on average 2.6672828096118297) internal successors, (4329), 1633 states have internal predecessors, (4329), 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 07:51:27,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1634 states to 1634 states and 4329 transitions. [2022-11-19 07:51:27,149 INFO L78 Accepts]: Start accepts. Automaton has 1634 states and 4329 transitions. Word has length 7 [2022-11-19 07:51:27,149 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:51:27,150 INFO L495 AbstractCegarLoop]: Abstraction has 1634 states and 4329 transitions. [2022-11-19 07:51:27,151 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 1.75) internal successors, (7), 4 states have internal predecessors, (7), 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 07:51:27,151 INFO L276 IsEmpty]: Start isEmpty. Operand 1634 states and 4329 transitions. [2022-11-19 07:51:27,151 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-11-19 07:51:27,152 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:51:27,152 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:51:27,152 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-19 07:51:27,152 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [t2_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2022-11-19 07:51:27,153 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:51:27,153 INFO L85 PathProgramCache]: Analyzing trace with hash 1270475399, now seen corresponding path program 1 times [2022-11-19 07:51:27,153 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:51:27,155 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2075078065] [2022-11-19 07:51:27,156 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:51:27,156 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:51:27,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:51:27,263 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 07:51:27,263 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:51:27,264 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2075078065] [2022-11-19 07:51:27,264 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2075078065] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:51:27,264 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:51:27,264 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 07:51:27,264 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [647812891] [2022-11-19 07:51:27,264 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:51:27,265 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-19 07:51:27,265 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:51:27,265 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-19 07:51:27,265 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-19 07:51:27,266 INFO L87 Difference]: Start difference. First operand 1634 states and 4329 transitions. Second operand has 5 states, 4 states have (on average 1.75) internal successors, (7), 4 states have internal predecessors, (7), 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 07:51:27,445 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:51:27,445 INFO L93 Difference]: Finished difference Result 1753 states and 4561 transitions. [2022-11-19 07:51:27,446 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-19 07:51:27,446 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 1.75) internal successors, (7), 4 states have internal predecessors, (7), 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 7 [2022-11-19 07:51:27,446 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:51:27,453 INFO L225 Difference]: With dead ends: 1753 [2022-11-19 07:51:27,453 INFO L226 Difference]: Without dead ends: 1413 [2022-11-19 07:51:27,453 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2022-11-19 07:51:27,474 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 90 mSDsluCounter, 11 mSDsCounter, 0 mSdLazyCounter, 157 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 90 SdHoareTripleChecker+Valid, 19 SdHoareTripleChecker+Invalid, 160 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 157 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-19 07:51:27,474 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [90 Valid, 19 Invalid, 160 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 157 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-19 07:51:27,480 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1413 states. [2022-11-19 07:51:27,510 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1413 to 1105. [2022-11-19 07:51:27,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1105 states, 1103 states have (on average 2.627379873073436) internal successors, (2898), 1104 states have internal predecessors, (2898), 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 07:51:27,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1105 states to 1105 states and 2898 transitions. [2022-11-19 07:51:27,517 INFO L78 Accepts]: Start accepts. Automaton has 1105 states and 2898 transitions. Word has length 7 [2022-11-19 07:51:27,518 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:51:27,518 INFO L495 AbstractCegarLoop]: Abstraction has 1105 states and 2898 transitions. [2022-11-19 07:51:27,518 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 1.75) internal successors, (7), 4 states have internal predecessors, (7), 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 07:51:27,518 INFO L276 IsEmpty]: Start isEmpty. Operand 1105 states and 2898 transitions. [2022-11-19 07:51:27,520 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-11-19 07:51:27,521 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:51:27,521 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:51:27,521 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-19 07:51:27,521 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting t2_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [t2_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2022-11-19 07:51:27,522 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:51:27,523 INFO L85 PathProgramCache]: Analyzing trace with hash -838402498, now seen corresponding path program 1 times [2022-11-19 07:51:27,523 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:51:27,523 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1018331941] [2022-11-19 07:51:27,523 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:51:27,523 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:51:27,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:51:27,620 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 07:51:27,620 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:51:27,620 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1018331941] [2022-11-19 07:51:27,621 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1018331941] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:51:27,621 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:51:27,621 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 07:51:27,621 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1980049610] [2022-11-19 07:51:27,621 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:51:27,622 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-19 07:51:27,622 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:51:27,622 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-19 07:51:27,623 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-19 07:51:27,623 INFO L87 Difference]: Start difference. First operand 1105 states and 2898 transitions. Second operand has 5 states, 4 states have (on average 2.25) internal successors, (9), 4 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 07:51:27,782 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:51:27,782 INFO L93 Difference]: Finished difference Result 950 states and 2467 transitions. [2022-11-19 07:51:27,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-19 07:51:27,783 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.25) internal successors, (9), 4 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 07:51:27,783 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:51:27,788 INFO L225 Difference]: With dead ends: 950 [2022-11-19 07:51:27,788 INFO L226 Difference]: Without dead ends: 950 [2022-11-19 07:51:27,788 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-11-19 07:51:27,789 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 82 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 182 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 82 SdHoareTripleChecker+Valid, 23 SdHoareTripleChecker+Invalid, 183 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 182 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-19 07:51:27,790 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [82 Valid, 23 Invalid, 183 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 182 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-19 07:51:27,793 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 950 states. [2022-11-19 07:51:27,810 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 950 to 950. [2022-11-19 07:51:27,812 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 950 states, 949 states have (on average 2.5995785036880927) internal successors, (2467), 949 states have internal predecessors, (2467), 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 07:51:27,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 950 states to 950 states and 2467 transitions. [2022-11-19 07:51:27,815 INFO L78 Accepts]: Start accepts. Automaton has 950 states and 2467 transitions. Word has length 9 [2022-11-19 07:51:27,815 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:51:27,815 INFO L495 AbstractCegarLoop]: Abstraction has 950 states and 2467 transitions. [2022-11-19 07:51:27,815 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.25) internal successors, (9), 4 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 07:51:27,816 INFO L276 IsEmpty]: Start isEmpty. Operand 950 states and 2467 transitions. [2022-11-19 07:51:27,816 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-11-19 07:51:27,816 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:51:27,817 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:51:27,817 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-19 07:51:27,817 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting t2_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [t2_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2022-11-19 07:51:27,817 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:51:27,818 INFO L85 PathProgramCache]: Analyzing trace with hash -838402513, now seen corresponding path program 1 times [2022-11-19 07:51:27,818 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:51:27,818 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [908107125] [2022-11-19 07:51:27,818 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:51:27,818 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:51:27,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:51:27,875 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 07:51:27,875 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:51:27,875 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [908107125] [2022-11-19 07:51:27,875 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [908107125] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:51:27,876 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:51:27,876 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 07:51:27,876 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [217579468] [2022-11-19 07:51:27,876 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:51:27,876 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-19 07:51:27,877 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:51:27,877 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-19 07:51:27,877 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-19 07:51:27,878 INFO L87 Difference]: Start difference. First operand 950 states and 2467 transitions. Second operand has 5 states, 4 states have (on average 2.25) internal successors, (9), 4 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 07:51:27,991 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:51:27,991 INFO L93 Difference]: Finished difference Result 795 states and 2036 transitions. [2022-11-19 07:51:27,991 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-19 07:51:27,992 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.25) internal successors, (9), 4 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 07:51:27,992 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:51:27,992 INFO L225 Difference]: With dead ends: 795 [2022-11-19 07:51:27,992 INFO L226 Difference]: Without dead ends: 0 [2022-11-19 07:51:27,992 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2022-11-19 07:51:27,993 INFO L413 NwaCegarLoop]: 7 mSDtfsCounter, 110 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 106 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 15 SdHoareTripleChecker+Invalid, 107 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 106 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-19 07:51:27,993 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [110 Valid, 15 Invalid, 107 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 106 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-19 07:51:27,994 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-19 07:51:27,994 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-19 07:51:27,994 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 07:51:27,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-19 07:51:27,994 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 9 [2022-11-19 07:51:27,995 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:51:27,995 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-19 07:51:27,995 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.25) internal successors, (9), 4 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 07:51:27,995 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-19 07:51:27,995 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-19 07:51:27,998 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 18 remaining) [2022-11-19 07:51:27,998 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 18 remaining) [2022-11-19 07:51:27,998 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 18 remaining) [2022-11-19 07:51:27,998 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 18 remaining) [2022-11-19 07:51:27,999 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (13 of 18 remaining) [2022-11-19 07:51:27,999 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (12 of 18 remaining) [2022-11-19 07:51:27,999 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 18 remaining) [2022-11-19 07:51:27,999 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 18 remaining) [2022-11-19 07:51:27,999 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 18 remaining) [2022-11-19 07:51:27,999 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 18 remaining) [2022-11-19 07:51:28,000 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 18 remaining) [2022-11-19 07:51:28,000 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 18 remaining) [2022-11-19 07:51:28,000 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 18 remaining) [2022-11-19 07:51:28,000 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 18 remaining) [2022-11-19 07:51:28,000 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 18 remaining) [2022-11-19 07:51:28,001 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 18 remaining) [2022-11-19 07:51:28,001 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 18 remaining) [2022-11-19 07:51:28,001 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 18 remaining) [2022-11-19 07:51:28,001 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-19 07:51:28,003 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:51:28,008 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-19 07:51:28,008 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-19 07:51:28,011 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 07:51:28 BasicIcfg [2022-11-19 07:51:28,011 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-19 07:51:28,011 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-19 07:51:28,012 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-19 07:51:28,012 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-19 07:51:28,012 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:51:18" (3/4) ... [2022-11-19 07:51:28,014 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-19 07:51:28,023 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure t2_fun [2022-11-19 07:51:28,023 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure t_fun [2022-11-19 07:51:28,030 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 19 nodes and edges [2022-11-19 07:51:28,030 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2022-11-19 07:51:28,031 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-11-19 07:51:28,031 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-19 07:51:28,081 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b98dd313-f68d-40a1-b1d8-627025e28f8b/bin/utaipan-I9t0OCRTmS/witness.graphml [2022-11-19 07:51:28,081 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-19 07:51:28,081 INFO L158 Benchmark]: Toolchain (without parser) took 11146.69ms. Allocated memory was 100.7MB in the beginning and 197.1MB in the end (delta: 96.5MB). Free memory was 64.9MB in the beginning and 68.6MB in the end (delta: -3.7MB). Peak memory consumption was 92.8MB. Max. memory is 16.1GB. [2022-11-19 07:51:28,082 INFO L158 Benchmark]: CDTParser took 0.28ms. Allocated memory is still 100.7MB. Free memory is still 82.6MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-19 07:51:28,082 INFO L158 Benchmark]: CACSL2BoogieTranslator took 626.35ms. Allocated memory is still 100.7MB. Free memory was 64.7MB in the beginning and 67.5MB in the end (delta: -2.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-19 07:51:28,082 INFO L158 Benchmark]: Boogie Procedure Inliner took 77.83ms. Allocated memory is still 100.7MB. Free memory was 67.5MB in the beginning and 65.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-19 07:51:28,082 INFO L158 Benchmark]: Boogie Preprocessor took 61.18ms. Allocated memory is still 100.7MB. Free memory was 65.4MB in the beginning and 63.7MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-19 07:51:28,083 INFO L158 Benchmark]: RCFGBuilder took 551.77ms. Allocated memory is still 100.7MB. Free memory was 63.7MB in the beginning and 46.0MB in the end (delta: 17.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2022-11-19 07:51:28,084 INFO L158 Benchmark]: TraceAbstraction took 9751.08ms. Allocated memory was 100.7MB in the beginning and 197.1MB in the end (delta: 96.5MB). Free memory was 45.3MB in the beginning and 71.7MB in the end (delta: -26.4MB). Peak memory consumption was 72.1MB. Max. memory is 16.1GB. [2022-11-19 07:51:28,084 INFO L158 Benchmark]: Witness Printer took 69.45ms. Allocated memory is still 197.1MB. Free memory was 71.7MB in the beginning and 68.6MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-19 07:51:28,086 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28ms. Allocated memory is still 100.7MB. Free memory is still 82.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 626.35ms. Allocated memory is still 100.7MB. Free memory was 64.7MB in the beginning and 67.5MB in the end (delta: -2.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 77.83ms. Allocated memory is still 100.7MB. Free memory was 67.5MB in the beginning and 65.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 61.18ms. Allocated memory is still 100.7MB. Free memory was 65.4MB in the beginning and 63.7MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 551.77ms. Allocated memory is still 100.7MB. Free memory was 63.7MB in the beginning and 46.0MB in the end (delta: 17.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 9751.08ms. Allocated memory was 100.7MB in the beginning and 197.1MB in the end (delta: 96.5MB). Free memory was 45.3MB in the beginning and 71.7MB in the end (delta: -26.4MB). Peak memory consumption was 72.1MB. Max. memory is 16.1GB. * Witness Printer took 69.45ms. Allocated memory is still 197.1MB. Free memory was 71.7MB in the beginning and 68.6MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 6.7s, 174 PlacesBefore, 57 PlacesAfterwards, 171 TransitionsBefore, 54 TransitionsAfterwards, 7748 CoEnabledTransitionPairs, 8 FixpointIterations, 47 TrivialSequentialCompositions, 94 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 19 ConcurrentYvCompositions, 0 ChoiceCompositions, 160 TotalNumberOfCompositions, 24737 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 9105, independent: 8568, independent conditional: 0, independent unconditional: 8568, dependent: 537, dependent conditional: 0, dependent unconditional: 537, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 5348, independent: 5222, independent conditional: 0, independent unconditional: 5222, dependent: 126, dependent conditional: 0, dependent unconditional: 126, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 5348, independent: 4897, independent conditional: 0, independent unconditional: 4897, dependent: 451, dependent conditional: 0, dependent unconditional: 451, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 451, independent: 325, independent conditional: 0, independent unconditional: 325, dependent: 126, dependent conditional: 0, dependent unconditional: 126, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 660, independent: 361, independent conditional: 0, independent unconditional: 361, dependent: 299, dependent conditional: 0, dependent unconditional: 299, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 9105, independent: 3346, independent conditional: 0, independent unconditional: 3346, dependent: 411, dependent conditional: 0, dependent unconditional: 411, unknown: 5348, unknown conditional: 0, unknown unconditional: 5348] , Statistics on independence cache: Total cache size (in pairs): 397, Positive cache size: 337, Positive conditional cache size: 0, Positive unconditional cache size: 337, Negative cache size: 60, Negative conditional cache size: 0, Negative unconditional cache size: 60, 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: 699]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 699]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 702]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 702]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 688]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 688]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 691]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 691]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 224 locations, 18 error locations. Started 1 CEGAR loops. OverallTime: 9.5s, OverallIterations: 7, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 6.8s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 467 SdHoareTripleChecker+Valid, 0.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 467 mSDsluCounter, 117 SdHoareTripleChecker+Invalid, 0.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 64 mSDsCounter, 16 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 903 IncrementalHoareTripleChecker+Invalid, 919 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 16 mSolverCounterUnsat, 53 mSDtfsCounter, 903 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 19 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2647occurred in iteration=0, InterpolantAutomatonStates: 29, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.4s AutomataMinimizationTime, 7 MinimizatonAttempts, 1502 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 48 NumberOfCodeBlocks, 48 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 41 ConstructedInterpolants, 0 QuantifiedInterpolants, 123 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 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 8 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-11-19 07:51:28,117 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b98dd313-f68d-40a1-b1d8-627025e28f8b/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE