./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/weaver/popl20-three-array-sum.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 8393723b Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f8dabe1-64ce-4a41-873b-6c4bfd34e17c/bin/utaipan-I9t0OCRTmS/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f8dabe1-64ce-4a41-873b-6c4bfd34e17c/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_7f8dabe1-64ce-4a41-873b-6c4bfd34e17c/bin/utaipan-I9t0OCRTmS/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f8dabe1-64ce-4a41-873b-6c4bfd34e17c/bin/utaipan-I9t0OCRTmS/config/TaipanReach.xml -i ../../sv-benchmarks/c/weaver/popl20-three-array-sum.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f8dabe1-64ce-4a41-873b-6c4bfd34e17c/bin/utaipan-I9t0OCRTmS/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f8dabe1-64ce-4a41-873b-6c4bfd34e17c/bin/utaipan-I9t0OCRTmS --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 4b8273370cd4ec5730806cf9b8f54c915e93daab6c48b9546d3920e402afdc55 --- 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 06:38:11,859 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-19 06:38:11,861 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-19 06:38:11,883 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-19 06:38:11,888 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-19 06:38:11,893 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-19 06:38:11,896 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-19 06:38:11,899 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-19 06:38:11,904 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-19 06:38:11,908 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-19 06:38:11,909 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-19 06:38:11,912 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-19 06:38:11,912 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-19 06:38:11,919 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-19 06:38:11,920 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-19 06:38:11,921 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-19 06:38:11,924 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-19 06:38:11,925 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-19 06:38:11,927 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-19 06:38:11,929 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-19 06:38:11,933 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-19 06:38:11,936 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-19 06:38:11,937 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-19 06:38:11,939 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-19 06:38:11,944 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-19 06:38:11,946 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-19 06:38:11,947 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-19 06:38:11,948 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-19 06:38:11,949 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-19 06:38:11,950 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-19 06:38:11,951 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-19 06:38:11,952 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-19 06:38:11,954 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-19 06:38:11,955 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-19 06:38:11,956 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-19 06:38:11,956 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-19 06:38:11,957 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-19 06:38:11,957 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-19 06:38:11,957 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-19 06:38:11,959 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-19 06:38:11,959 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-19 06:38:11,960 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f8dabe1-64ce-4a41-873b-6c4bfd34e17c/bin/utaipan-I9t0OCRTmS/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-11-19 06:38:12,002 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-19 06:38:12,003 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-19 06:38:12,003 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-19 06:38:12,004 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-19 06:38:12,005 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-19 06:38:12,005 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-19 06:38:12,005 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-19 06:38:12,005 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-19 06:38:12,005 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-19 06:38:12,006 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-19 06:38:12,007 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-19 06:38:12,007 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-19 06:38:12,007 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-19 06:38:12,007 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-19 06:38:12,008 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-19 06:38:12,008 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-19 06:38:12,008 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-19 06:38:12,008 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-19 06:38:12,009 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-19 06:38:12,009 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-19 06:38:12,010 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-19 06:38:12,010 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-19 06:38:12,010 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-19 06:38:12,010 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-19 06:38:12,010 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-19 06:38:12,011 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-19 06:38:12,011 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-19 06:38:12,011 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-19 06:38:12,011 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-19 06:38:12,012 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-19 06:38:12,012 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-19 06:38:12,012 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-19 06:38:12,012 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 06:38:12,013 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-19 06:38:12,013 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-19 06:38:12,013 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-19 06:38:12,013 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-19 06:38:12,014 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-19 06:38:12,014 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-19 06:38:12,014 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-19 06:38:12,014 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-19 06:38:12,015 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_7f8dabe1-64ce-4a41-873b-6c4bfd34e17c/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f8dabe1-64ce-4a41-873b-6c4bfd34e17c/bin/utaipan-I9t0OCRTmS Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4b8273370cd4ec5730806cf9b8f54c915e93daab6c48b9546d3920e402afdc55 [2022-11-19 06:38:12,323 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-19 06:38:12,349 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-19 06:38:12,352 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-19 06:38:12,354 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-19 06:38:12,355 INFO L275 PluginConnector]: CDTParser initialized [2022-11-19 06:38:12,357 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f8dabe1-64ce-4a41-873b-6c4bfd34e17c/bin/utaipan-I9t0OCRTmS/../../sv-benchmarks/c/weaver/popl20-three-array-sum.wvr.c [2022-11-19 06:38:12,440 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f8dabe1-64ce-4a41-873b-6c4bfd34e17c/bin/utaipan-I9t0OCRTmS/data/7df7ff9ce/12543038dc6748ed918e6b58305b9812/FLAG575f3962a [2022-11-19 06:38:13,078 INFO L306 CDTParser]: Found 1 translation units. [2022-11-19 06:38:13,079 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f8dabe1-64ce-4a41-873b-6c4bfd34e17c/sv-benchmarks/c/weaver/popl20-three-array-sum.wvr.c [2022-11-19 06:38:13,088 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f8dabe1-64ce-4a41-873b-6c4bfd34e17c/bin/utaipan-I9t0OCRTmS/data/7df7ff9ce/12543038dc6748ed918e6b58305b9812/FLAG575f3962a [2022-11-19 06:38:13,411 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f8dabe1-64ce-4a41-873b-6c4bfd34e17c/bin/utaipan-I9t0OCRTmS/data/7df7ff9ce/12543038dc6748ed918e6b58305b9812 [2022-11-19 06:38:13,414 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-19 06:38:13,416 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-19 06:38:13,419 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-19 06:38:13,419 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-19 06:38:13,426 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-19 06:38:13,427 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 06:38:13" (1/1) ... [2022-11-19 06:38:13,430 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@720b5732 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:38:13, skipping insertion in model container [2022-11-19 06:38:13,431 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 06:38:13" (1/1) ... [2022-11-19 06:38:13,442 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-19 06:38:13,478 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-19 06:38:13,853 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_7f8dabe1-64ce-4a41-873b-6c4bfd34e17c/sv-benchmarks/c/weaver/popl20-three-array-sum.wvr.c[2691,2704] [2022-11-19 06:38:13,879 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 06:38:13,897 INFO L203 MainTranslator]: Completed pre-run [2022-11-19 06:38:13,955 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_7f8dabe1-64ce-4a41-873b-6c4bfd34e17c/sv-benchmarks/c/weaver/popl20-three-array-sum.wvr.c[2691,2704] [2022-11-19 06:38:13,963 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 06:38:13,990 INFO L208 MainTranslator]: Completed translation [2022-11-19 06:38:13,991 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:38:13 WrapperNode [2022-11-19 06:38:13,991 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-19 06:38:13,993 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-19 06:38:13,993 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-19 06:38:13,993 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-19 06:38:14,004 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:38:13" (1/1) ... [2022-11-19 06:38:14,030 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:38:13" (1/1) ... [2022-11-19 06:38:14,078 INFO L138 Inliner]: procedures = 26, calls = 44, calls flagged for inlining = 8, calls inlined = 12, statements flattened = 150 [2022-11-19 06:38:14,081 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-19 06:38:14,082 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-19 06:38:14,082 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-19 06:38:14,083 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-19 06:38:14,097 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:38:13" (1/1) ... [2022-11-19 06:38:14,097 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:38:13" (1/1) ... [2022-11-19 06:38:14,118 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:38:13" (1/1) ... [2022-11-19 06:38:14,123 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:38:13" (1/1) ... [2022-11-19 06:38:14,131 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:38:13" (1/1) ... [2022-11-19 06:38:14,147 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:38:13" (1/1) ... [2022-11-19 06:38:14,152 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:38:13" (1/1) ... [2022-11-19 06:38:14,157 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:38:13" (1/1) ... [2022-11-19 06:38:14,160 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-19 06:38:14,171 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-19 06:38:14,171 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-19 06:38:14,171 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-19 06:38:14,173 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:38:13" (1/1) ... [2022-11-19 06:38:14,182 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 06:38:14,198 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f8dabe1-64ce-4a41-873b-6c4bfd34e17c/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 06:38:14,215 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f8dabe1-64ce-4a41-873b-6c4bfd34e17c/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-19 06:38:14,246 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f8dabe1-64ce-4a41-873b-6c4bfd34e17c/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-19 06:38:14,272 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-19 06:38:14,273 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-19 06:38:14,273 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-19 06:38:14,273 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-19 06:38:14,273 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-11-19 06:38:14,273 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-11-19 06:38:14,273 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-11-19 06:38:14,273 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-11-19 06:38:14,274 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-11-19 06:38:14,274 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-11-19 06:38:14,274 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-19 06:38:14,274 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-11-19 06:38:14,274 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-11-19 06:38:14,274 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-19 06:38:14,274 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-19 06:38:14,275 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-19 06:38:14,275 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-19 06:38:14,277 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 06:38:14,415 INFO L235 CfgBuilder]: Building ICFG [2022-11-19 06:38:14,417 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-19 06:38:14,957 INFO L276 CfgBuilder]: Performing block encoding [2022-11-19 06:38:15,074 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-19 06:38:15,083 INFO L300 CfgBuilder]: Removed 6 assume(true) statements. [2022-11-19 06:38:15,086 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 06:38:15 BoogieIcfgContainer [2022-11-19 06:38:15,087 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-19 06:38:15,089 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-19 06:38:15,089 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-19 06:38:15,104 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-19 06:38:15,104 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 06:38:13" (1/3) ... [2022-11-19 06:38:15,106 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1839d201 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 06:38:15, skipping insertion in model container [2022-11-19 06:38:15,114 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:38:13" (2/3) ... [2022-11-19 06:38:15,114 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1839d201 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 06:38:15, skipping insertion in model container [2022-11-19 06:38:15,114 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 06:38:15" (3/3) ... [2022-11-19 06:38:15,116 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-three-array-sum.wvr.c [2022-11-19 06:38:15,124 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-19 06:38:15,136 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-19 06:38:15,136 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-19 06:38:15,136 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-19 06:38:15,271 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2022-11-19 06:38:15,321 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-19 06:38:15,355 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 218 places, 228 transitions, 480 flow [2022-11-19 06:38:15,358 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 218 places, 228 transitions, 480 flow [2022-11-19 06:38:15,360 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 218 places, 228 transitions, 480 flow [2022-11-19 06:38:15,513 INFO L130 PetriNetUnfolder]: 20/225 cut-off events. [2022-11-19 06:38:15,513 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-11-19 06:38:15,522 INFO L83 FinitePrefix]: Finished finitePrefix Result has 238 conditions, 225 events. 20/225 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 147 event pairs, 0 based on Foata normal form. 0/204 useless extension candidates. Maximal degree in co-relation 184. Up to 3 conditions per place. [2022-11-19 06:38:15,525 INFO L119 LiptonReduction]: Number of co-enabled transitions 1874 [2022-11-19 06:38:25,777 INFO L134 LiptonReduction]: Checked pairs total: 2636 [2022-11-19 06:38:25,777 INFO L136 LiptonReduction]: Total number of compositions: 230 [2022-11-19 06:38:25,789 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 38 places, 35 transitions, 94 flow [2022-11-19 06:38:25,836 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 167 states, 166 states have (on average 3.3373493975903616) internal successors, (554), 166 states have internal predecessors, (554), 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 06:38:25,863 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-19 06:38:25,871 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;@7af976b8, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-19 06:38:25,871 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-11-19 06:38:25,875 INFO L276 IsEmpty]: Start isEmpty. Operand has 167 states, 166 states have (on average 3.3373493975903616) internal successors, (554), 166 states have internal predecessors, (554), 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 06:38:25,888 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-11-19 06:38:25,889 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 06:38:25,889 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 06:38:25,890 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-11-19 06:38:25,897 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 06:38:25,898 INFO L85 PathProgramCache]: Analyzing trace with hash 288745018, now seen corresponding path program 1 times [2022-11-19 06:38:25,911 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 06:38:25,912 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [380709570] [2022-11-19 06:38:25,912 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 06:38:25,913 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 06:38:26,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 06:38:27,003 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 06:38:27,004 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 06:38:27,004 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [380709570] [2022-11-19 06:38:27,005 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [380709570] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 06:38:27,005 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 06:38:27,006 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-19 06:38:27,009 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [582452827] [2022-11-19 06:38:27,010 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 06:38:27,015 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 06:38:27,015 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 06:38:27,044 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 06:38:27,045 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 06:38:27,051 INFO L87 Difference]: Start difference. First operand has 167 states, 166 states have (on average 3.3373493975903616) internal successors, (554), 166 states have internal predecessors, (554), 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 11.0) internal successors, (22), 2 states have internal predecessors, (22), 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 06:38:27,232 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 06:38:27,233 INFO L93 Difference]: Finished difference Result 282 states and 944 transitions. [2022-11-19 06:38:27,235 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 06:38:27,236 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 11.0) internal successors, (22), 2 states have internal predecessors, (22), 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 22 [2022-11-19 06:38:27,237 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 06:38:27,267 INFO L225 Difference]: With dead ends: 282 [2022-11-19 06:38:27,279 INFO L226 Difference]: Without dead ends: 267 [2022-11-19 06:38:27,281 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 06:38:27,288 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 6 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 6 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-19 06:38:27,291 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 6 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-19 06:38:27,320 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 267 states. [2022-11-19 06:38:27,377 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 267 to 241. [2022-11-19 06:38:27,385 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 241 states, 240 states have (on average 3.3958333333333335) internal successors, (815), 240 states have internal predecessors, (815), 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 06:38:27,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 241 states to 241 states and 815 transitions. [2022-11-19 06:38:27,389 INFO L78 Accepts]: Start accepts. Automaton has 241 states and 815 transitions. Word has length 22 [2022-11-19 06:38:27,390 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 06:38:27,390 INFO L495 AbstractCegarLoop]: Abstraction has 241 states and 815 transitions. [2022-11-19 06:38:27,391 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 11.0) internal successors, (22), 2 states have internal predecessors, (22), 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 06:38:27,391 INFO L276 IsEmpty]: Start isEmpty. Operand 241 states and 815 transitions. [2022-11-19 06:38:27,396 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-11-19 06:38:27,396 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 06:38:27,396 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 06:38:27,397 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-19 06:38:27,397 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-11-19 06:38:27,398 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 06:38:27,398 INFO L85 PathProgramCache]: Analyzing trace with hash -1831608686, now seen corresponding path program 1 times [2022-11-19 06:38:27,398 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 06:38:27,399 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1735935077] [2022-11-19 06:38:27,399 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 06:38:27,399 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 06:38:27,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 06:38:27,655 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 06:38:27,655 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 06:38:27,656 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1735935077] [2022-11-19 06:38:27,657 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1735935077] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 06:38:27,658 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 06:38:27,658 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-19 06:38:27,659 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [835684273] [2022-11-19 06:38:27,664 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 06:38:27,666 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-19 06:38:27,666 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 06:38:27,667 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-19 06:38:27,667 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-19 06:38:27,668 INFO L87 Difference]: Start difference. First operand 241 states and 815 transitions. Second operand has 5 states, 5 states have (on average 4.8) internal successors, (24), 4 states have internal predecessors, (24), 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 06:38:27,933 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 06:38:27,933 INFO L93 Difference]: Finished difference Result 439 states and 1375 transitions. [2022-11-19 06:38:27,933 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-19 06:38:27,934 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.8) internal successors, (24), 4 states have internal predecessors, (24), 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 24 [2022-11-19 06:38:27,934 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 06:38:27,938 INFO L225 Difference]: With dead ends: 439 [2022-11-19 06:38:27,938 INFO L226 Difference]: Without dead ends: 403 [2022-11-19 06:38:27,939 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-11-19 06:38:27,941 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 47 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 111 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 13 SdHoareTripleChecker+Invalid, 121 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 111 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-19 06:38:27,941 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [47 Valid, 13 Invalid, 121 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 111 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-19 06:38:27,944 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 403 states. [2022-11-19 06:38:27,966 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 403 to 363. [2022-11-19 06:38:27,968 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 363 states, 362 states have (on average 3.287292817679558) internal successors, (1190), 362 states have internal predecessors, (1190), 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 06:38:27,971 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 363 states to 363 states and 1190 transitions. [2022-11-19 06:38:27,972 INFO L78 Accepts]: Start accepts. Automaton has 363 states and 1190 transitions. Word has length 24 [2022-11-19 06:38:27,972 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 06:38:27,972 INFO L495 AbstractCegarLoop]: Abstraction has 363 states and 1190 transitions. [2022-11-19 06:38:27,972 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.8) internal successors, (24), 4 states have internal predecessors, (24), 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 06:38:27,973 INFO L276 IsEmpty]: Start isEmpty. Operand 363 states and 1190 transitions. [2022-11-19 06:38:27,976 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-11-19 06:38:27,977 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 06:38:27,977 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 06:38:27,977 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-19 06:38:27,977 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-11-19 06:38:27,978 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 06:38:27,978 INFO L85 PathProgramCache]: Analyzing trace with hash -370357079, now seen corresponding path program 1 times [2022-11-19 06:38:27,978 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 06:38:27,979 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1473556586] [2022-11-19 06:38:27,979 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 06:38:27,979 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 06:38:28,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 06:38:28,159 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 06:38:28,159 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 06:38:28,159 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1473556586] [2022-11-19 06:38:28,160 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1473556586] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 06:38:28,160 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 06:38:28,160 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-19 06:38:28,160 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1750751081] [2022-11-19 06:38:28,160 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 06:38:28,161 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-19 06:38:28,161 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 06:38:28,162 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-19 06:38:28,162 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-19 06:38:28,162 INFO L87 Difference]: Start difference. First operand 363 states and 1190 transitions. Second operand has 5 states, 5 states have (on average 4.8) internal successors, (24), 4 states have internal predecessors, (24), 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 06:38:28,340 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 06:38:28,341 INFO L93 Difference]: Finished difference Result 299 states and 956 transitions. [2022-11-19 06:38:28,341 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-19 06:38:28,342 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.8) internal successors, (24), 4 states have internal predecessors, (24), 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 24 [2022-11-19 06:38:28,342 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 06:38:28,344 INFO L225 Difference]: With dead ends: 299 [2022-11-19 06:38:28,344 INFO L226 Difference]: Without dead ends: 244 [2022-11-19 06:38:28,345 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-11-19 06:38:28,346 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 26 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 118 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 13 SdHoareTripleChecker+Invalid, 127 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 118 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-19 06:38:28,347 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 13 Invalid, 127 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 118 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-19 06:38:28,349 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 244 states. [2022-11-19 06:38:28,359 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 244 to 244. [2022-11-19 06:38:28,360 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 244 states, 243 states have (on average 3.366255144032922) internal successors, (818), 243 states have internal predecessors, (818), 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 06:38:28,362 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 244 states to 244 states and 818 transitions. [2022-11-19 06:38:28,362 INFO L78 Accepts]: Start accepts. Automaton has 244 states and 818 transitions. Word has length 24 [2022-11-19 06:38:28,363 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 06:38:28,363 INFO L495 AbstractCegarLoop]: Abstraction has 244 states and 818 transitions. [2022-11-19 06:38:28,363 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.8) internal successors, (24), 4 states have internal predecessors, (24), 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 06:38:28,363 INFO L276 IsEmpty]: Start isEmpty. Operand 244 states and 818 transitions. [2022-11-19 06:38:28,365 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-11-19 06:38:28,366 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 06:38:28,366 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 06:38:28,366 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-19 06:38:28,366 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-11-19 06:38:28,367 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 06:38:28,367 INFO L85 PathProgramCache]: Analyzing trace with hash -1705343325, now seen corresponding path program 1 times [2022-11-19 06:38:28,367 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 06:38:28,368 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [977827232] [2022-11-19 06:38:28,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 06:38:28,368 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 06:38:28,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 06:38:28,575 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-19 06:38:28,575 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 06:38:28,575 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [977827232] [2022-11-19 06:38:28,575 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [977827232] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-19 06:38:28,576 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1113898824] [2022-11-19 06:38:28,576 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 06:38:28,576 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 06:38:28,576 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f8dabe1-64ce-4a41-873b-6c4bfd34e17c/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 06:38:28,580 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f8dabe1-64ce-4a41-873b-6c4bfd34e17c/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 06:38:28,606 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f8dabe1-64ce-4a41-873b-6c4bfd34e17c/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-19 06:38:28,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 06:38:28,727 INFO L263 TraceCheckSpWp]: Trace formula consists of 293 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-19 06:38:28,733 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 06:38:28,822 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-19 06:38:28,822 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 06:38:28,886 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-19 06:38:28,886 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1113898824] provided 1 perfect and 1 imperfect interpolant sequences [2022-11-19 06:38:28,886 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-11-19 06:38:28,886 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5, 4] total 9 [2022-11-19 06:38:28,887 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1353155846] [2022-11-19 06:38:28,887 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 06:38:28,887 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-19 06:38:28,888 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 06:38:28,888 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-19 06:38:28,888 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-11-19 06:38:28,889 INFO L87 Difference]: Start difference. First operand 244 states and 818 transitions. Second operand has 5 states, 5 states have (on average 5.4) internal successors, (27), 4 states have internal predecessors, (27), 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 06:38:29,004 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 06:38:29,005 INFO L93 Difference]: Finished difference Result 314 states and 1069 transitions. [2022-11-19 06:38:29,005 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-19 06:38:29,005 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.4) internal successors, (27), 4 states have internal predecessors, (27), 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 27 [2022-11-19 06:38:29,006 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 06:38:29,008 INFO L225 Difference]: With dead ends: 314 [2022-11-19 06:38:29,008 INFO L226 Difference]: Without dead ends: 314 [2022-11-19 06:38:29,009 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 48 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=37, Invalid=73, Unknown=0, NotChecked=0, Total=110 [2022-11-19 06:38:29,010 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 44 mSDsluCounter, 2 mSDsCounter, 0 mSdLazyCounter, 71 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 7 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 71 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-19 06:38:29,011 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [44 Valid, 7 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 71 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-19 06:38:29,012 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 314 states. [2022-11-19 06:38:29,021 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 314 to 314. [2022-11-19 06:38:29,023 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 314 states, 313 states have (on average 3.415335463258786) internal successors, (1069), 313 states have internal predecessors, (1069), 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 06:38:29,025 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 314 states to 314 states and 1069 transitions. [2022-11-19 06:38:29,025 INFO L78 Accepts]: Start accepts. Automaton has 314 states and 1069 transitions. Word has length 27 [2022-11-19 06:38:29,025 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 06:38:29,026 INFO L495 AbstractCegarLoop]: Abstraction has 314 states and 1069 transitions. [2022-11-19 06:38:29,026 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.4) internal successors, (27), 4 states have internal predecessors, (27), 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 06:38:29,026 INFO L276 IsEmpty]: Start isEmpty. Operand 314 states and 1069 transitions. [2022-11-19 06:38:29,028 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2022-11-19 06:38:29,028 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 06:38:29,028 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 06:38:29,042 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f8dabe1-64ce-4a41-873b-6c4bfd34e17c/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-19 06:38:29,235 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f8dabe1-64ce-4a41-873b-6c4bfd34e17c/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 06:38:29,235 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-11-19 06:38:29,236 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 06:38:29,236 INFO L85 PathProgramCache]: Analyzing trace with hash -671670794, now seen corresponding path program 1 times [2022-11-19 06:38:29,236 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 06:38:29,236 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1844963164] [2022-11-19 06:38:29,236 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 06:38:29,237 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 06:38:29,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 06:38:29,468 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-19 06:38:29,468 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 06:38:29,471 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1844963164] [2022-11-19 06:38:29,471 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1844963164] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-19 06:38:29,472 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2082186722] [2022-11-19 06:38:29,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 06:38:29,473 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 06:38:29,473 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f8dabe1-64ce-4a41-873b-6c4bfd34e17c/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 06:38:29,474 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f8dabe1-64ce-4a41-873b-6c4bfd34e17c/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 06:38:29,506 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f8dabe1-64ce-4a41-873b-6c4bfd34e17c/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-19 06:38:29,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 06:38:29,653 INFO L263 TraceCheckSpWp]: Trace formula consists of 302 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-19 06:38:29,655 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 06:38:29,783 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-19 06:38:29,784 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 06:38:29,865 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-19 06:38:29,865 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2082186722] provided 1 perfect and 1 imperfect interpolant sequences [2022-11-19 06:38:29,865 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-11-19 06:38:29,865 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5, 4] total 9 [2022-11-19 06:38:29,866 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1687547455] [2022-11-19 06:38:29,866 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 06:38:29,866 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-19 06:38:29,866 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 06:38:29,867 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-19 06:38:29,868 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-11-19 06:38:29,868 INFO L87 Difference]: Start difference. First operand 314 states and 1069 transitions. Second operand has 5 states, 5 states have (on average 5.6) internal successors, (28), 4 states have internal predecessors, (28), 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 06:38:29,971 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 06:38:29,971 INFO L93 Difference]: Finished difference Result 292 states and 1003 transitions. [2022-11-19 06:38:29,971 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-19 06:38:29,972 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.6) internal successors, (28), 4 states have internal predecessors, (28), 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 28 [2022-11-19 06:38:29,972 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 06:38:29,974 INFO L225 Difference]: With dead ends: 292 [2022-11-19 06:38:29,974 INFO L226 Difference]: Without dead ends: 292 [2022-11-19 06:38:29,975 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 50 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=37, Invalid=73, Unknown=0, NotChecked=0, Total=110 [2022-11-19 06:38:29,977 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 44 mSDsluCounter, 2 mSDsCounter, 0 mSdLazyCounter, 69 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 7 SdHoareTripleChecker+Invalid, 71 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 69 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-19 06:38:29,980 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [44 Valid, 7 Invalid, 71 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 69 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-19 06:38:29,983 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 292 states. [2022-11-19 06:38:29,991 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 292 to 260. [2022-11-19 06:38:29,992 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 260 states, 259 states have (on average 3.3783783783783785) internal successors, (875), 259 states have internal predecessors, (875), 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 06:38:29,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 260 states to 260 states and 875 transitions. [2022-11-19 06:38:29,994 INFO L78 Accepts]: Start accepts. Automaton has 260 states and 875 transitions. Word has length 28 [2022-11-19 06:38:29,994 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 06:38:29,994 INFO L495 AbstractCegarLoop]: Abstraction has 260 states and 875 transitions. [2022-11-19 06:38:29,995 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.6) internal successors, (28), 4 states have internal predecessors, (28), 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 06:38:29,995 INFO L276 IsEmpty]: Start isEmpty. Operand 260 states and 875 transitions. [2022-11-19 06:38:29,996 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2022-11-19 06:38:29,996 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 06:38:29,997 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 06:38:30,006 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f8dabe1-64ce-4a41-873b-6c4bfd34e17c/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-19 06:38:30,204 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f8dabe1-64ce-4a41-873b-6c4bfd34e17c/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 06:38:30,204 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-11-19 06:38:30,205 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 06:38:30,205 INFO L85 PathProgramCache]: Analyzing trace with hash 789580813, now seen corresponding path program 1 times [2022-11-19 06:38:30,205 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 06:38:30,205 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [942625743] [2022-11-19 06:38:30,205 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 06:38:30,205 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 06:38:30,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 06:38:30,403 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-19 06:38:30,404 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 06:38:30,404 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [942625743] [2022-11-19 06:38:30,404 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [942625743] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-19 06:38:30,404 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [681861685] [2022-11-19 06:38:30,405 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 06:38:30,405 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 06:38:30,405 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f8dabe1-64ce-4a41-873b-6c4bfd34e17c/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 06:38:30,406 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f8dabe1-64ce-4a41-873b-6c4bfd34e17c/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 06:38:30,426 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f8dabe1-64ce-4a41-873b-6c4bfd34e17c/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-19 06:38:30,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 06:38:30,567 INFO L263 TraceCheckSpWp]: Trace formula consists of 303 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-19 06:38:30,569 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 06:38:30,641 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-19 06:38:30,641 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 06:38:30,706 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-19 06:38:30,706 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [681861685] provided 1 perfect and 1 imperfect interpolant sequences [2022-11-19 06:38:30,706 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-11-19 06:38:30,706 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5, 4] total 9 [2022-11-19 06:38:30,707 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1985298589] [2022-11-19 06:38:30,707 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 06:38:30,707 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-19 06:38:30,707 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 06:38:30,709 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-19 06:38:30,709 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-11-19 06:38:30,709 INFO L87 Difference]: Start difference. First operand 260 states and 875 transitions. Second operand has 5 states, 5 states have (on average 5.6) internal successors, (28), 4 states have internal predecessors, (28), 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 06:38:30,814 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 06:38:30,814 INFO L93 Difference]: Finished difference Result 310 states and 1093 transitions. [2022-11-19 06:38:30,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-19 06:38:30,815 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.6) internal successors, (28), 4 states have internal predecessors, (28), 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 28 [2022-11-19 06:38:30,816 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 06:38:30,818 INFO L225 Difference]: With dead ends: 310 [2022-11-19 06:38:30,818 INFO L226 Difference]: Without dead ends: 310 [2022-11-19 06:38:30,819 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 50 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=37, Invalid=73, Unknown=0, NotChecked=0, Total=110 [2022-11-19 06:38:30,821 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 41 mSDsluCounter, 2 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 7 SdHoareTripleChecker+Invalid, 70 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-19 06:38:30,821 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [41 Valid, 7 Invalid, 70 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-19 06:38:30,823 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 310 states. [2022-11-19 06:38:30,830 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 310 to 310. [2022-11-19 06:38:30,831 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 310 states, 309 states have (on average 3.5372168284789645) internal successors, (1093), 309 states have internal predecessors, (1093), 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 06:38:30,834 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 310 states to 310 states and 1093 transitions. [2022-11-19 06:38:30,834 INFO L78 Accepts]: Start accepts. Automaton has 310 states and 1093 transitions. Word has length 28 [2022-11-19 06:38:30,835 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 06:38:30,836 INFO L495 AbstractCegarLoop]: Abstraction has 310 states and 1093 transitions. [2022-11-19 06:38:30,836 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.6) internal successors, (28), 4 states have internal predecessors, (28), 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 06:38:30,836 INFO L276 IsEmpty]: Start isEmpty. Operand 310 states and 1093 transitions. [2022-11-19 06:38:30,839 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2022-11-19 06:38:30,840 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 06:38:30,840 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 06:38:30,852 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f8dabe1-64ce-4a41-873b-6c4bfd34e17c/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-19 06:38:31,051 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f8dabe1-64ce-4a41-873b-6c4bfd34e17c/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 06:38:31,051 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-11-19 06:38:31,052 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 06:38:31,052 INFO L85 PathProgramCache]: Analyzing trace with hash 782978357, now seen corresponding path program 1 times [2022-11-19 06:38:31,052 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 06:38:31,052 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1304330128] [2022-11-19 06:38:31,053 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 06:38:31,053 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 06:38:31,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 06:38:33,820 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-19 06:38:33,821 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 06:38:33,822 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1304330128] [2022-11-19 06:38:33,822 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1304330128] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-19 06:38:33,822 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2013083472] [2022-11-19 06:38:33,822 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 06:38:33,822 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 06:38:33,823 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f8dabe1-64ce-4a41-873b-6c4bfd34e17c/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 06:38:33,827 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f8dabe1-64ce-4a41-873b-6c4bfd34e17c/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 06:38:33,834 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f8dabe1-64ce-4a41-873b-6c4bfd34e17c/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-19 06:38:34,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 06:38:34,016 INFO L263 TraceCheckSpWp]: Trace formula consists of 311 conjuncts, 53 conjunts are in the unsatisfiable core [2022-11-19 06:38:34,020 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 06:38:34,125 INFO L321 Elim1Store]: treesize reduction 72, result has 33.9 percent of original size [2022-11-19 06:38:34,126 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 3 case distinctions, treesize of input 15 treesize of output 42 [2022-11-19 06:38:34,211 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-11-19 06:38:34,212 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 12 treesize of output 14 [2022-11-19 06:38:34,346 INFO L321 Elim1Store]: treesize reduction 16, result has 36.0 percent of original size [2022-11-19 06:38:34,347 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 16 treesize of output 18 [2022-11-19 06:38:34,728 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-19 06:38:34,729 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 21 treesize of output 24 [2022-11-19 06:38:35,221 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-19 06:38:35,222 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 39 treesize of output 23 [2022-11-19 06:38:35,263 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-19 06:38:35,264 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 06:38:35,621 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-19 06:38:35,622 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 332 treesize of output 312 [2022-11-19 06:38:36,757 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 163 treesize of output 151 [2022-11-19 06:38:36,943 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 257 treesize of output 239 [2022-11-19 06:38:37,676 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 349 treesize of output 325 [2022-11-19 06:38:42,174 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 257 treesize of output 239 [2022-11-19 06:38:42,926 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 71 treesize of output 65 [2022-11-19 06:38:42,976 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:38:42,992 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 163 treesize of output 151 [2022-11-19 06:38:43,002 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:38:43,017 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 71 treesize of output 65 [2022-11-19 06:38:43,027 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:38:43,038 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:38:43,611 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-19 06:38:43,612 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 1 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 71 treesize of output 161 [2022-11-19 06:38:44,122 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:38:44,208 INFO L321 Elim1Store]: treesize reduction 12, result has 61.3 percent of original size [2022-11-19 06:38:44,208 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 41 treesize of output 34 [2022-11-19 06:39:06,316 WARN L233 SmtUtils]: Spent 21.75s on a formula simplification. DAG size of input: 56 DAG size of output: 29 (called from [L 318] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2022-11-19 06:39:06,317 INFO L321 Elim1Store]: treesize reduction 75, result has 35.9 percent of original size [2022-11-19 06:39:06,318 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 349 treesize of output 230 [2022-11-19 06:39:08,265 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:39:13,274 INFO L321 Elim1Store]: treesize reduction 47, result has 23.0 percent of original size [2022-11-19 06:39:13,275 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 114 treesize of output 61 [2022-11-19 06:39:16,621 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:39:16,833 INFO L321 Elim1Store]: treesize reduction 47, result has 23.0 percent of original size [2022-11-19 06:39:16,833 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 30 treesize of output 28 [2022-11-19 06:39:19,333 INFO L321 Elim1Store]: treesize reduction 47, result has 23.0 percent of original size [2022-11-19 06:39:19,334 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 399 treesize of output 230 [2022-11-19 06:39:19,976 INFO L321 Elim1Store]: treesize reduction 47, result has 23.0 percent of original size [2022-11-19 06:39:19,977 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 30 treesize of output 28 [2022-11-19 06:39:20,873 INFO L321 Elim1Store]: treesize reduction 75, result has 35.9 percent of original size [2022-11-19 06:39:20,874 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 163 treesize of output 132 [2022-11-19 06:39:21,223 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:39:23,004 INFO L321 Elim1Store]: treesize reduction 47, result has 23.0 percent of original size [2022-11-19 06:39:23,005 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 72 treesize of output 43 [2022-11-19 06:39:23,159 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:39:26,138 INFO L321 Elim1Store]: treesize reduction 47, result has 23.0 percent of original size [2022-11-19 06:39:26,138 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 72 treesize of output 43 [2022-11-19 06:39:26,680 INFO L321 Elim1Store]: treesize reduction 5, result has 50.0 percent of original size [2022-11-19 06:39:26,680 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 100 treesize of output 83 [2022-11-19 06:39:26,725 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-19 06:39:26,726 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 87 treesize of output 83 [2022-11-19 06:39:26,915 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:39:26,916 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 100 treesize of output 79 [2022-11-19 06:39:26,932 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:39:26,948 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:39:26,950 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 74 treesize of output 41 [2022-11-19 06:39:27,037 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:39:27,038 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 100 treesize of output 80 [2022-11-19 06:39:27,064 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:39:27,072 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:39:27,073 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 97 treesize of output 55 [2022-11-19 06:39:27,230 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:39:27,232 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 211 treesize of output 166 [2022-11-19 06:39:27,281 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:39:27,724 INFO L321 Elim1Store]: treesize reduction 15, result has 6.3 percent of original size [2022-11-19 06:39:27,725 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 327 treesize of output 1 [2022-11-19 06:39:27,742 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:39:27,743 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 54 treesize of output 41 [2022-11-19 06:39:27,751 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:39:27,760 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2022-11-19 06:39:27,805 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:39:27,806 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 156 treesize of output 124 [2022-11-19 06:39:27,858 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:39:27,864 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:39:27,866 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 111 treesize of output 85 [2022-11-19 06:39:28,478 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:39:28,480 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 36 [2022-11-19 06:39:28,495 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:39:28,502 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:39:28,503 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2022-11-19 06:39:28,550 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:39:28,551 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 22 [2022-11-19 06:39:28,569 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:39:28,570 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 70 treesize of output 43 [2022-11-19 06:39:28,605 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:39:28,607 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 399 treesize of output 317 [2022-11-19 06:39:28,622 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:39:28,624 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 317 treesize of output 226 [2022-11-19 06:39:28,690 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:39:28,691 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 36 [2022-11-19 06:39:28,706 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:39:28,716 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:39:28,717 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2022-11-19 06:39:28,909 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-19 06:39:28,909 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 163 treesize of output 161 [2022-11-19 06:39:28,962 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-19 06:39:28,962 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 123 treesize of output 101 [2022-11-19 06:39:30,494 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:39:30,501 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:39:30,502 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 114 treesize of output 82 [2022-11-19 06:39:30,575 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:39:30,576 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 365 treesize of output 259 [2022-11-19 06:39:38,396 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:39:38,401 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 101 treesize of output 77 [2022-11-19 06:39:38,410 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:39:38,412 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 77 treesize of output 52 [2022-11-19 06:39:38,528 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:39:38,535 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:39:38,536 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 72 treesize of output 51 [2022-11-19 06:39:38,572 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:39:38,575 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 198 treesize of output 132 [2022-11-19 06:39:39,719 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:39:39,805 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-19 06:39:39,806 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 163 treesize of output 139 [2022-11-19 06:39:39,822 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:39:39,824 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 123 treesize of output 93 [2022-11-19 06:39:40,338 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:39:40,507 INFO L321 Elim1Store]: treesize reduction 15, result has 6.3 percent of original size [2022-11-19 06:39:40,508 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 163 treesize of output 1 [2022-11-19 06:39:40,517 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:39:40,524 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:39:40,525 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 22 [2022-11-19 06:39:40,543 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:39:40,544 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 70 treesize of output 43 [2022-11-19 06:39:40,576 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:39:40,593 INFO L321 Elim1Store]: treesize reduction 15, result has 6.3 percent of original size [2022-11-19 06:39:40,593 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 71 treesize of output 1 [2022-11-19 06:39:40,611 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:39:41,084 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-19 06:39:41,085 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 349 treesize of output 275 [2022-11-19 06:39:41,100 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:39:41,101 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 259 treesize of output 193 [2022-11-19 06:39:50,223 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:39:50,231 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:39:50,232 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 22 [2022-11-19 06:39:50,252 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:39:50,253 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 70 treesize of output 43 [2022-11-19 06:39:50,302 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:39:50,310 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:39:50,311 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 22 [2022-11-19 06:39:50,332 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:39:50,333 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 76 treesize of output 49 [2022-11-19 06:39:50,372 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:39:53,458 INFO L321 Elim1Store]: treesize reduction 15, result has 6.3 percent of original size [2022-11-19 06:39:53,459 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 257 treesize of output 1 [2022-11-19 06:39:53,482 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:39:53,793 INFO L321 Elim1Store]: treesize reduction 47, result has 23.0 percent of original size [2022-11-19 06:39:53,794 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 30 treesize of output 28 [2022-11-19 06:39:54,468 INFO L321 Elim1Store]: treesize reduction 75, result has 35.9 percent of original size [2022-11-19 06:39:54,469 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 163 treesize of output 132 [2022-11-19 06:39:56,374 INFO L321 Elim1Store]: treesize reduction 75, result has 35.9 percent of original size [2022-11-19 06:39:56,374 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 71 treesize of output 86 [2022-11-19 06:40:30,940 WARN L233 SmtUtils]: Spent 34.48s on a formula simplification. DAG size of input: 56 DAG size of output: 33 (called from [L 318] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2022-11-19 06:40:30,941 INFO L321 Elim1Store]: treesize reduction 70, result has 40.2 percent of original size [2022-11-19 06:40:30,941 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 349 treesize of output 235 [2022-11-19 06:40:53,756 WARN L233 SmtUtils]: Spent 10.44s on a formula simplification. DAG size of input: 56 DAG size of output: 30 (called from [L 318] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2022-11-19 06:40:53,757 INFO L321 Elim1Store]: treesize reduction 75, result has 35.9 percent of original size [2022-11-19 06:40:53,757 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 257 treesize of output 184 [2022-11-19 06:40:58,749 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:41:09,048 WARN L233 SmtUtils]: Spent 10.28s on a formula simplification. DAG size of input: 35 DAG size of output: 17 (called from [L 318] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2022-11-19 06:41:09,048 INFO L321 Elim1Store]: treesize reduction 42, result has 31.1 percent of original size [2022-11-19 06:41:09,049 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 114 treesize of output 66 [2022-11-19 06:41:27,956 WARN L233 SmtUtils]: Spent 5.81s on a formula simplification. DAG size of input: 16 DAG size of output: 1 (called from [L 800] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2022-11-19 06:41:28,152 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:41:28,393 INFO L321 Elim1Store]: treesize reduction 47, result has 23.0 percent of original size [2022-11-19 06:41:28,394 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 30 treesize of output 28 [2022-11-19 06:41:28,424 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:41:28,430 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:41:28,446 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-19 06:41:28,446 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 101 treesize of output 60 [2022-11-19 06:41:36,847 INFO L321 Elim1Store]: treesize reduction 75, result has 35.9 percent of original size [2022-11-19 06:41:36,848 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 163 treesize of output 132 [2022-11-19 06:41:37,042 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:41:43,093 WARN L233 SmtUtils]: Spent 6.03s on a formula simplification. DAG size of input: 35 DAG size of output: 14 (called from [L 318] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2022-11-19 06:41:43,094 INFO L321 Elim1Store]: treesize reduction 47, result has 23.0 percent of original size [2022-11-19 06:41:43,094 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 72 treesize of output 43 [2022-11-19 06:41:43,365 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:41:43,776 INFO L321 Elim1Store]: treesize reduction 47, result has 23.0 percent of original size [2022-11-19 06:41:43,776 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 30 treesize of output 28 [2022-11-19 06:41:43,803 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:41:44,628 INFO L321 Elim1Store]: treesize reduction 47, result has 23.0 percent of original size [2022-11-19 06:41:44,628 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 72 treesize of output 43 [2022-11-19 06:41:44,941 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:41:45,170 INFO L321 Elim1Store]: treesize reduction 47, result has 23.0 percent of original size [2022-11-19 06:41:45,171 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 30 treesize of output 28 [2022-11-19 06:41:45,861 INFO L321 Elim1Store]: treesize reduction 75, result has 35.9 percent of original size [2022-11-19 06:41:45,861 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 163 treesize of output 132 [2022-11-19 06:41:50,563 INFO L321 Elim1Store]: treesize reduction 75, result has 35.9 percent of original size [2022-11-19 06:41:50,563 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 71 treesize of output 86 [2022-11-19 06:41:50,978 INFO L321 Elim1Store]: treesize reduction 8, result has 89.3 percent of original size [2022-11-19 06:41:50,978 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 96 treesize of output 113 [2022-11-19 06:42:24,737 WARN L233 SmtUtils]: Spent 18.98s on a formula simplification. DAG size of input: 56 DAG size of output: 48 (called from [L 318] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2022-11-19 06:42:24,737 INFO L321 Elim1Store]: treesize reduction 24, result has 79.5 percent of original size [2022-11-19 06:42:24,738 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 349 treesize of output 281