./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/heap-data/shared_mem2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 57096758 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98e4db16-f799-448f-91f7-866e6aa5cc62/bin/utaipan-mTDlp9Zugs/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98e4db16-f799-448f-91f7-866e6aa5cc62/bin/utaipan-mTDlp9Zugs/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98e4db16-f799-448f-91f7-866e6aa5cc62/bin/utaipan-mTDlp9Zugs/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98e4db16-f799-448f-91f7-866e6aa5cc62/bin/utaipan-mTDlp9Zugs/config/TaipanReach.xml -i ../../sv-benchmarks/c/heap-data/shared_mem2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98e4db16-f799-448f-91f7-866e6aa5cc62/bin/utaipan-mTDlp9Zugs/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98e4db16-f799-448f-91f7-866e6aa5cc62/bin/utaipan-mTDlp9Zugs --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 e7852fa616656cf29d8d53332cfc28f5a43f0ad1 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98e4db16-f799-448f-91f7-866e6aa5cc62/bin/utaipan-mTDlp9Zugs/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98e4db16-f799-448f-91f7-866e6aa5cc62/bin/utaipan-mTDlp9Zugs/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98e4db16-f799-448f-91f7-866e6aa5cc62/bin/utaipan-mTDlp9Zugs/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98e4db16-f799-448f-91f7-866e6aa5cc62/bin/utaipan-mTDlp9Zugs/config/TaipanReach.xml -i ../../sv-benchmarks/c/heap-data/shared_mem2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98e4db16-f799-448f-91f7-866e6aa5cc62/bin/utaipan-mTDlp9Zugs/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98e4db16-f799-448f-91f7-866e6aa5cc62/bin/utaipan-mTDlp9Zugs --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 e7852fa616656cf29d8d53332cfc28f5a43f0ad1 ...................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: UnsupportedOperationException: translation of (bvneg (_ BitVec 1) (_ BitVec 1)) not yet implemented, please contact Matthias --- Real Ultimate output --- This is Ultimate 0.2.1-dev-5709675 [2021-10-16 03:16:00,858 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-16 03:16:00,861 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-16 03:16:00,925 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-16 03:16:00,926 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-16 03:16:00,931 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-16 03:16:00,933 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-16 03:16:00,938 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-16 03:16:00,940 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-16 03:16:00,946 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-16 03:16:00,947 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-16 03:16:00,949 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-16 03:16:00,949 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-16 03:16:00,952 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-16 03:16:00,954 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-16 03:16:00,958 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-16 03:16:00,960 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-16 03:16:00,961 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-16 03:16:00,964 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-16 03:16:00,975 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-16 03:16:00,977 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-16 03:16:00,978 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-16 03:16:00,982 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-16 03:16:00,983 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-16 03:16:00,987 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-16 03:16:00,987 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-16 03:16:00,988 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-16 03:16:00,990 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-16 03:16:00,990 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-16 03:16:00,992 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-16 03:16:00,992 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-16 03:16:00,993 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-16 03:16:00,995 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-16 03:16:00,996 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-16 03:16:00,998 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-16 03:16:00,998 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-16 03:16:00,999 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-16 03:16:00,999 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-16 03:16:00,999 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-16 03:16:01,000 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-16 03:16:01,001 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-16 03:16:01,002 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98e4db16-f799-448f-91f7-866e6aa5cc62/bin/utaipan-mTDlp9Zugs/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-10-16 03:16:01,048 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-16 03:16:01,048 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-16 03:16:01,050 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-16 03:16:01,050 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-16 03:16:01,050 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-16 03:16:01,050 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-16 03:16:01,051 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-10-16 03:16:01,051 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-16 03:16:01,051 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-16 03:16:01,051 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-10-16 03:16:01,058 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-10-16 03:16:01,059 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-16 03:16:01,059 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-10-16 03:16:01,059 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-10-16 03:16:01,060 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-10-16 03:16:01,060 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-16 03:16:01,061 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-16 03:16:01,061 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-16 03:16:01,061 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-16 03:16:01,061 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-16 03:16:01,062 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-16 03:16:01,062 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-16 03:16:01,062 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-16 03:16:01,062 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-16 03:16:01,062 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-16 03:16:01,063 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-16 03:16:01,063 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-16 03:16:01,063 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-16 03:16:01,063 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-16 03:16:01,066 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-16 03:16:01,066 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-16 03:16:01,066 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-16 03:16:01,067 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-16 03:16:01,067 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-16 03:16:01,067 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-10-16 03:16:01,067 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-16 03:16:01,067 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-16 03:16:01,068 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-16 03:16:01,068 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-16 03:16:01,068 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_98e4db16-f799-448f-91f7-866e6aa5cc62/bin/utaipan-mTDlp9Zugs/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98e4db16-f799-448f-91f7-866e6aa5cc62/bin/utaipan-mTDlp9Zugs Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e7852fa616656cf29d8d53332cfc28f5a43f0ad1 [2021-10-16 03:16:01,409 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-16 03:16:01,435 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-16 03:16:01,438 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-16 03:16:01,440 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-16 03:16:01,441 INFO L275 PluginConnector]: CDTParser initialized [2021-10-16 03:16:01,442 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98e4db16-f799-448f-91f7-866e6aa5cc62/bin/utaipan-mTDlp9Zugs/../../sv-benchmarks/c/heap-data/shared_mem2.i [2021-10-16 03:16:01,509 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98e4db16-f799-448f-91f7-866e6aa5cc62/bin/utaipan-mTDlp9Zugs/data/2ae5bf36a/13d1ca84f4a9478aa9b264c445330384/FLAG2cfac500f [2021-10-16 03:16:02,112 INFO L306 CDTParser]: Found 1 translation units. [2021-10-16 03:16:02,113 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98e4db16-f799-448f-91f7-866e6aa5cc62/sv-benchmarks/c/heap-data/shared_mem2.i [2021-10-16 03:16:02,137 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98e4db16-f799-448f-91f7-866e6aa5cc62/bin/utaipan-mTDlp9Zugs/data/2ae5bf36a/13d1ca84f4a9478aa9b264c445330384/FLAG2cfac500f [2021-10-16 03:16:02,370 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98e4db16-f799-448f-91f7-866e6aa5cc62/bin/utaipan-mTDlp9Zugs/data/2ae5bf36a/13d1ca84f4a9478aa9b264c445330384 [2021-10-16 03:16:02,373 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-16 03:16:02,374 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-16 03:16:02,376 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-16 03:16:02,376 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-16 03:16:02,379 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-16 03:16:02,380 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 03:16:02" (1/1) ... [2021-10-16 03:16:02,381 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4e6e79ca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:16:02, skipping insertion in model container [2021-10-16 03:16:02,382 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 03:16:02" (1/1) ... [2021-10-16 03:16:02,389 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-16 03:16:02,435 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-16 03:16:02,837 WARN L228 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_98e4db16-f799-448f-91f7-866e6aa5cc62/sv-benchmarks/c/heap-data/shared_mem2.i[23827,23840] [2021-10-16 03:16:02,845 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-16 03:16:02,856 INFO L203 MainTranslator]: Completed pre-run [2021-10-16 03:16:02,917 WARN L228 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_98e4db16-f799-448f-91f7-866e6aa5cc62/sv-benchmarks/c/heap-data/shared_mem2.i[23827,23840] [2021-10-16 03:16:02,921 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-16 03:16:02,955 INFO L208 MainTranslator]: Completed translation [2021-10-16 03:16:02,956 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:16:02 WrapperNode [2021-10-16 03:16:02,956 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-16 03:16:02,957 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-16 03:16:02,958 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-16 03:16:02,958 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-16 03:16:02,965 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:16:02" (1/1) ... [2021-10-16 03:16:02,997 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:16:02" (1/1) ... [2021-10-16 03:16:03,028 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-16 03:16:03,029 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-16 03:16:03,030 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-16 03:16:03,030 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-16 03:16:03,038 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:16:02" (1/1) ... [2021-10-16 03:16:03,039 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:16:02" (1/1) ... [2021-10-16 03:16:03,047 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:16:02" (1/1) ... [2021-10-16 03:16:03,048 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:16:02" (1/1) ... [2021-10-16 03:16:03,066 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:16:02" (1/1) ... [2021-10-16 03:16:03,071 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:16:02" (1/1) ... [2021-10-16 03:16:03,077 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:16:02" (1/1) ... [2021-10-16 03:16:03,085 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-16 03:16:03,086 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-16 03:16:03,086 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-16 03:16:03,086 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-16 03:16:03,087 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:16:02" (1/1) ... [2021-10-16 03:16:03,094 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-16 03:16:03,105 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98e4db16-f799-448f-91f7-866e6aa5cc62/bin/utaipan-mTDlp9Zugs/z3 [2021-10-16 03:16:03,117 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98e4db16-f799-448f-91f7-866e6aa5cc62/bin/utaipan-mTDlp9Zugs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-16 03:16:03,149 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98e4db16-f799-448f-91f7-866e6aa5cc62/bin/utaipan-mTDlp9Zugs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-16 03:16:03,165 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-10-16 03:16:03,165 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-10-16 03:16:03,167 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-10-16 03:16:03,167 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-10-16 03:16:03,167 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-16 03:16:03,167 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-10-16 03:16:03,168 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-16 03:16:03,168 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-16 03:16:03,168 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-16 03:16:03,760 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-16 03:16:03,760 INFO L299 CfgBuilder]: Removed 6 assume(true) statements. [2021-10-16 03:16:03,763 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 03:16:03 BoogieIcfgContainer [2021-10-16 03:16:03,763 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-16 03:16:03,765 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-16 03:16:03,767 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-16 03:16:03,770 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-16 03:16:03,771 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 03:16:02" (1/3) ... [2021-10-16 03:16:03,772 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f292029 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 03:16:03, skipping insertion in model container [2021-10-16 03:16:03,773 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:16:02" (2/3) ... [2021-10-16 03:16:03,773 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f292029 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 03:16:03, skipping insertion in model container [2021-10-16 03:16:03,773 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 03:16:03" (3/3) ... [2021-10-16 03:16:03,775 INFO L111 eAbstractionObserver]: Analyzing ICFG shared_mem2.i [2021-10-16 03:16:03,781 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-16 03:16:03,781 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-10-16 03:16:03,830 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-16 03:16:03,843 INFO L339 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, mConcurrency=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, mLoopAccelerationTechnique=FAST_UPR [2021-10-16 03:16:03,844 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-10-16 03:16:03,857 INFO L276 IsEmpty]: Start isEmpty. Operand has 12 states, 10 states have (on average 1.6) internal successors, (16), 11 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 03:16:03,862 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-10-16 03:16:03,863 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 03:16:03,864 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-16 03:16:03,864 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-16 03:16:03,870 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 03:16:03,870 INFO L82 PathProgramCache]: Analyzing trace with hash -1277433734, now seen corresponding path program 1 times [2021-10-16 03:16:03,891 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-16 03:16:03,892 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [740430477] [2021-10-16 03:16:03,894 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 03:16:03,895 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 03:16:04,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 03:16:04,162 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 03:16:04,163 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-16 03:16:04,163 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [740430477] [2021-10-16 03:16:04,165 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [740430477] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-16 03:16:04,166 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-16 03:16:04,166 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-16 03:16:04,168 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [194399388] [2021-10-16 03:16:04,185 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-10-16 03:16:04,186 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-16 03:16:04,200 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-16 03:16:04,205 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-16 03:16:04,208 INFO L87 Difference]: Start difference. First operand has 12 states, 10 states have (on average 1.6) internal successors, (16), 11 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 03:16:04,224 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 03:16:04,224 INFO L93 Difference]: Finished difference Result 21 states and 27 transitions. [2021-10-16 03:16:04,226 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-16 03:16:04,227 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2021-10-16 03:16:04,228 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 03:16:04,236 INFO L225 Difference]: With dead ends: 21 [2021-10-16 03:16:04,237 INFO L226 Difference]: Without dead ends: 10 [2021-10-16 03:16:04,241 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0ms TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-16 03:16:04,259 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states. [2021-10-16 03:16:04,271 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 10. [2021-10-16 03:16:04,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10 states, 9 states have (on average 1.2222222222222223) internal successors, (11), 9 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 03:16:04,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 11 transitions. [2021-10-16 03:16:04,275 INFO L78 Accepts]: Start accepts. Automaton has 10 states and 11 transitions. Word has length 7 [2021-10-16 03:16:04,276 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 03:16:04,276 INFO L470 AbstractCegarLoop]: Abstraction has 10 states and 11 transitions. [2021-10-16 03:16:04,277 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 03:16:04,277 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 11 transitions. [2021-10-16 03:16:04,278 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-10-16 03:16:04,278 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 03:16:04,278 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-16 03:16:04,279 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-16 03:16:04,279 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-16 03:16:04,283 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 03:16:04,283 INFO L82 PathProgramCache]: Analyzing trace with hash 1240778891, now seen corresponding path program 1 times [2021-10-16 03:16:04,284 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-16 03:16:04,284 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [206400742] [2021-10-16 03:16:04,285 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 03:16:04,285 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 03:16:04,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 03:16:04,469 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 03:16:04,469 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-16 03:16:04,470 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [206400742] [2021-10-16 03:16:04,470 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [206400742] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-16 03:16:04,470 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-16 03:16:04,471 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-16 03:16:04,471 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1306596418] [2021-10-16 03:16:04,472 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-16 03:16:04,473 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-16 03:16:04,474 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-16 03:16:04,474 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-10-16 03:16:04,475 INFO L87 Difference]: Start difference. First operand 10 states and 11 transitions. Second operand has 5 states, 5 states have (on average 1.8) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 03:16:04,540 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 03:16:04,541 INFO L93 Difference]: Finished difference Result 19 states and 21 transitions. [2021-10-16 03:16:04,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-16 03:16:04,542 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 1.8) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2021-10-16 03:16:04,542 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 03:16:04,543 INFO L225 Difference]: With dead ends: 19 [2021-10-16 03:16:04,543 INFO L226 Difference]: Without dead ends: 15 [2021-10-16 03:16:04,544 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 25.6ms TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-10-16 03:16:04,545 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2021-10-16 03:16:04,548 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2021-10-16 03:16:04,549 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 14 states have (on average 1.2142857142857142) internal successors, (17), 14 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 03:16:04,550 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 17 transitions. [2021-10-16 03:16:04,550 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 17 transitions. Word has length 9 [2021-10-16 03:16:04,551 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 03:16:04,551 INFO L470 AbstractCegarLoop]: Abstraction has 15 states and 17 transitions. [2021-10-16 03:16:04,551 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 1.8) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 03:16:04,552 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 17 transitions. [2021-10-16 03:16:04,552 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-10-16 03:16:04,553 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 03:16:04,553 INFO L512 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-16 03:16:04,554 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-16 03:16:04,554 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-16 03:16:04,555 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 03:16:04,555 INFO L82 PathProgramCache]: Analyzing trace with hash -826033172, now seen corresponding path program 1 times [2021-10-16 03:16:04,556 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-16 03:16:04,556 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1769203407] [2021-10-16 03:16:04,557 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 03:16:04,557 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 03:16:04,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 03:16:05,050 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 03:16:05,050 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-16 03:16:05,051 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1769203407] [2021-10-16 03:16:05,051 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1769203407] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-16 03:16:05,051 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [218793055] [2021-10-16 03:16:05,051 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 03:16:05,052 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-16 03:16:05,052 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98e4db16-f799-448f-91f7-866e6aa5cc62/bin/utaipan-mTDlp9Zugs/z3 [2021-10-16 03:16:05,057 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98e4db16-f799-448f-91f7-866e6aa5cc62/bin/utaipan-mTDlp9Zugs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-16 03:16:05,077 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98e4db16-f799-448f-91f7-866e6aa5cc62/bin/utaipan-mTDlp9Zugs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-10-16 03:16:05,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 03:16:05,148 INFO L263 TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 19 conjunts are in the unsatisfiable core [2021-10-16 03:16:05,154 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 03:16:05,313 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 247 treesize of output 231 [2021-10-16 03:16:05,502 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 03:16:05,506 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 19 [2021-10-16 03:16:05,536 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 03:16:05,538 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 19 [2021-10-16 03:16:05,556 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 03:16:05,557 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 03:16:05,561 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 58 treesize of output 34 [2021-10-16 03:16:05,570 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 03:16:05,573 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 0 case distinctions, treesize of input 34 treesize of output 21 [2021-10-16 03:16:06,008 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-16 03:16:06,010 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-10-16 03:16:06,018 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-16 03:16:06,019 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-10-16 03:16:06,059 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 0 case distinctions, treesize of input 56 treesize of output 36 [2021-10-16 03:16:06,073 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 0 case distinctions, treesize of input 44 treesize of output 28 [2021-10-16 03:16:06,103 INFO L354 Elim1Store]: treesize reduction 22, result has 35.3 percent of original size [2021-10-16 03:16:06,103 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 36 treesize of output 27 [2021-10-16 03:16:06,232 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 03:16:06,233 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 03:16:06,402 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-16 03:16:06,403 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-10-16 03:16:06,418 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-16 03:16:06,419 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-10-16 03:16:06,742 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 03:16:06,742 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [218793055] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-16 03:16:06,743 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1175203038] [2021-10-16 03:16:06,769 INFO L159 IcfgInterpreter]: Started Sifa with 10 locations of interest [2021-10-16 03:16:06,769 INFO L166 IcfgInterpreter]: Building call graph [2021-10-16 03:16:06,777 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-10-16 03:16:06,784 INFO L176 IcfgInterpreter]: Starting interpretation [2021-10-16 03:16:06,784 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-10-16 03:16:06,816 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-16 03:16:06,817 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-16 03:16:06,818 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-16 03:16:06,818 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-10-16 03:16:06,819 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-16 03:16:06,820 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-16 03:16:06,821 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-16 03:16:06,821 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-16 03:16:06,822 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 58 [2021-10-16 03:16:06,823 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-10-16 03:16:06,823 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-16 03:16:06,824 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-16 03:16:06,824 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-16 03:16:06,825 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-16 03:16:06,825 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-10-16 03:16:06,826 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 56 [2021-10-16 03:16:06,827 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-16 03:16:06,827 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-16 03:16:06,828 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 74 [2021-10-16 03:16:06,829 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-16 03:16:06,829 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-16 03:16:06,830 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-10-16 03:16:06,831 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-16 03:16:06,831 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-16 03:16:06,832 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-16 03:16:06,832 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-16 03:16:06,833 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-10-16 03:16:06,833 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-10-16 03:16:06,834 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-16 03:16:06,834 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-16 03:16:06,835 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-16 03:16:06,835 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-16 03:16:06,836 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-10-16 03:16:06,837 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-10-16 03:16:06,837 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-16 03:16:06,837 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-16 03:16:06,838 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-16 03:16:06,839 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-16 03:16:06,839 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-16 03:16:06,839 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-16 03:16:06,840 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-10-16 03:16:06,841 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-10-16 03:16:06,841 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-16 03:16:06,841 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-16 03:16:06,842 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-10-16 03:16:06,843 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-10-16 03:16:06,843 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-16 03:16:06,843 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-16 03:16:06,844 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-10-16 03:16:06,845 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-16 03:16:06,845 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-16 03:16:06,846 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-16 03:16:06,846 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-16 03:16:06,847 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-10-16 03:16:06,847 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-10-16 03:16:06,848 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-16 03:16:06,848 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-16 03:16:06,849 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-16 03:16:06,850 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-16 03:16:06,850 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-10-16 03:16:06,851 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-10-16 03:16:06,851 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-16 03:16:06,852 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-16 03:16:06,852 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-16 03:16:06,853 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-16 03:16:06,853 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-16 03:16:06,854 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-16 03:16:06,854 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-10-16 03:16:06,855 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-10-16 03:16:06,855 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-16 03:16:06,856 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-16 03:16:06,856 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-10-16 03:16:06,857 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-10-16 03:16:06,857 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-16 03:16:06,858 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-16 03:16:06,858 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-10-16 03:16:06,861 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 317 [2021-10-16 03:16:06,876 INFO L446 ElimStorePlain]: Different costs {0=[|v_#memory_$Pointer$.base_45|], 2=[|v_#memory_$Pointer$.base_21|], 4=[|v_#memory_$Pointer$.base_20|]} [2021-10-16 03:16:06,900 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-10-16 03:16:06,900 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-16 03:16:06,901 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-10-16 03:16:06,901 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-16 03:16:06,902 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-10-16 03:16:06,902 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-10-16 03:16:06,904 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 03:16:06,924 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-16 03:16:06,942 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-10-16 03:16:06,943 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-16 03:16:06,943 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-10-16 03:16:06,944 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-16 03:16:06,944 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-10-16 03:16:06,945 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-10-16 03:16:06,945 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 03:16:06,955 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-16 03:16:06,970 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 03:16:06,973 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 03:16:06,974 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 19 [2021-10-16 03:16:06,975 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-16 03:16:06,975 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-10-16 03:16:06,976 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-16 03:16:06,976 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-10-16 03:16:06,976 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-10-16 03:16:06,977 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 03:16:06,985 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-16 03:16:06,987 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-16 03:16:06,990 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 278 [2021-10-16 03:16:06,990 INFO L550 ElimStorePlain]: Start of recursive call 1: 3 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-10-16 03:16:06,991 INFO L247 ElimStorePlain]: Needed 4 recursive calls to eliminate 3 variables, input treesize:308, output treesize:278 [2021-10-16 03:16:07,030 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98e4db16-f799-448f-91f7-866e6aa5cc62/bin/utaipan-mTDlp9Zugs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-10-16 03:16:07,205 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98e4db16-f799-448f-91f7-866e6aa5cc62/bin/utaipan-mTDlp9Zugs/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-16 03:16:07,206 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.AssertionError: No corresponding IProgramVar for |v_#valid_21| at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.TermVarsProc.computeTermVarsProc(TermVarsProc.java:97) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.TermVarsProc.computeTermVarsProc(TermVarsProc.java:83) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.BasicPredicateFactory.constructTermVarsProc(BasicPredicateFactory.java:92) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.BasicPredicateFactory.newPredicate(BasicPredicateFactory.java:81) at de.uni_freiburg.informatik.ultimate.lib.sifa.SymbolicTools.predicate(SymbolicTools.java:174) at de.uni_freiburg.informatik.ultimate.lib.sifa.SymbolicTools.post(SymbolicTools.java:116) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretInternal(DagInterpreter.java:227) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretTransAndStoreLoiPred(DagInterpreter.java:209) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretTrans(DagInterpreter.java:187) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretNode(DagInterpreter.java:165) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:123) at de.uni_freiburg.informatik.ultimate.lib.sifa.IcfgInterpreter.interpretLoisInProcedure(IcfgInterpreter.java:136) at de.uni_freiburg.informatik.ultimate.lib.sifa.IcfgInterpreter.interpret(IcfgInterpreter.java:127) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.SifaRunner.(SifaRunner.java:102) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSifa.construct(IpTcStrategyModuleSifa.java:67) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:100) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:76) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:268) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:150) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:140) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:88) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:76) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:608) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:413) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:330) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopUtils.getCegarLoopResult(CegarLoopUtils.java:53) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:392) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:303) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseSequentialProgram(TraceAbstractionStarter.java:263) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:176) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:155) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-10-16 03:16:07,210 INFO L168 Benchmark]: Toolchain (without parser) took 4834.80 ms. Allocated memory was 113.2 MB in the beginning and 148.9 MB in the end (delta: 35.7 MB). Free memory was 74.5 MB in the beginning and 48.5 MB in the end (delta: 26.1 MB). Peak memory consumption was 60.8 MB. Max. memory is 16.1 GB. [2021-10-16 03:16:07,210 INFO L168 Benchmark]: CDTParser took 0.28 ms. Allocated memory is still 113.2 MB. Free memory is still 92.2 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-16 03:16:07,211 INFO L168 Benchmark]: CACSL2BoogieTranslator took 580.20 ms. Allocated memory is still 113.2 MB. Free memory was 74.3 MB in the beginning and 81.0 MB in the end (delta: -6.8 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-16 03:16:07,211 INFO L168 Benchmark]: Boogie Procedure Inliner took 71.01 ms. Allocated memory is still 113.2 MB. Free memory was 81.0 MB in the beginning and 79.1 MB in the end (delta: 1.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-16 03:16:07,212 INFO L168 Benchmark]: Boogie Preprocessor took 55.49 ms. Allocated memory is still 113.2 MB. Free memory was 79.1 MB in the beginning and 77.8 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-16 03:16:07,212 INFO L168 Benchmark]: RCFGBuilder took 677.65 ms. Allocated memory is still 113.2 MB. Free memory was 77.7 MB in the beginning and 58.6 MB in the end (delta: 19.1 MB). Peak memory consumption was 18.9 MB. Max. memory is 16.1 GB. [2021-10-16 03:16:07,213 INFO L168 Benchmark]: TraceAbstraction took 3443.65 ms. Allocated memory was 113.2 MB in the beginning and 148.9 MB in the end (delta: 35.7 MB). Free memory was 58.1 MB in the beginning and 48.5 MB in the end (delta: 9.6 MB). Peak memory consumption was 46.4 MB. Max. memory is 16.1 GB. [2021-10-16 03:16:07,215 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28 ms. Allocated memory is still 113.2 MB. Free memory is still 92.2 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 580.20 ms. Allocated memory is still 113.2 MB. Free memory was 74.3 MB in the beginning and 81.0 MB in the end (delta: -6.8 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 71.01 ms. Allocated memory is still 113.2 MB. Free memory was 81.0 MB in the beginning and 79.1 MB in the end (delta: 1.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 55.49 ms. Allocated memory is still 113.2 MB. Free memory was 79.1 MB in the beginning and 77.8 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 677.65 ms. Allocated memory is still 113.2 MB. Free memory was 77.7 MB in the beginning and 58.6 MB in the end (delta: 19.1 MB). Peak memory consumption was 18.9 MB. Max. memory is 16.1 GB. * TraceAbstraction took 3443.65 ms. Allocated memory was 113.2 MB in the beginning and 148.9 MB in the end (delta: 35.7 MB). Free memory was 58.1 MB in the beginning and 48.5 MB in the end (delta: 9.6 MB). Peak memory consumption was 46.4 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: AssertionError: No corresponding IProgramVar for |v_#valid_21| de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: No corresponding IProgramVar for |v_#valid_21|: de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.TermVarsProc.computeTermVarsProc(TermVarsProc.java:97) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2021-10-16 03:16:07,269 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98e4db16-f799-448f-91f7-866e6aa5cc62/bin/utaipan-mTDlp9Zugs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... ### Bit-precise run ### This is Ultimate 0.2.1-dev-5709675 [2021-10-16 03:16:09,782 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-16 03:16:09,784 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-16 03:16:09,856 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-16 03:16:09,857 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-16 03:16:09,861 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-16 03:16:09,863 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-16 03:16:09,873 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-16 03:16:09,876 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-16 03:16:09,884 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-16 03:16:09,885 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-16 03:16:09,886 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-16 03:16:09,887 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-16 03:16:09,888 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-16 03:16:09,889 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-16 03:16:09,890 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-16 03:16:09,891 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-16 03:16:09,892 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-16 03:16:09,895 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-16 03:16:09,904 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-16 03:16:09,907 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-16 03:16:09,908 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-16 03:16:09,914 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-16 03:16:09,916 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-16 03:16:09,923 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-16 03:16:09,923 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-16 03:16:09,924 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-16 03:16:09,926 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-16 03:16:09,926 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-16 03:16:09,927 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-16 03:16:09,928 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-16 03:16:09,929 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-16 03:16:09,931 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-16 03:16:09,932 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-16 03:16:09,933 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-16 03:16:09,934 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-16 03:16:09,934 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-16 03:16:09,935 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-16 03:16:09,935 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-16 03:16:09,937 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-16 03:16:09,938 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-16 03:16:09,939 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98e4db16-f799-448f-91f7-866e6aa5cc62/bin/utaipan-mTDlp9Zugs/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2021-10-16 03:16:09,981 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-16 03:16:09,982 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-16 03:16:09,983 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-16 03:16:09,984 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-16 03:16:09,984 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-16 03:16:09,984 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-16 03:16:09,984 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-16 03:16:09,984 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-16 03:16:09,985 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-16 03:16:09,987 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-16 03:16:09,988 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-16 03:16:09,988 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-16 03:16:09,988 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-16 03:16:09,989 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-16 03:16:09,989 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-16 03:16:09,989 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-16 03:16:09,990 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-16 03:16:09,990 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-10-16 03:16:09,990 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-10-16 03:16:09,990 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-16 03:16:09,990 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-16 03:16:09,991 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-16 03:16:09,991 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-16 03:16:09,991 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-16 03:16:09,991 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-16 03:16:09,992 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-16 03:16:09,992 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-16 03:16:09,992 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-16 03:16:09,992 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-16 03:16:09,993 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-16 03:16:09,993 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-10-16 03:16:09,993 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-10-16 03:16:09,993 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-16 03:16:09,994 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-16 03:16:09,994 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-16 03:16:09,994 INFO L138 SettingsManager]: * Logic for external solver=AUFBV 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_98e4db16-f799-448f-91f7-866e6aa5cc62/bin/utaipan-mTDlp9Zugs/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98e4db16-f799-448f-91f7-866e6aa5cc62/bin/utaipan-mTDlp9Zugs Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e7852fa616656cf29d8d53332cfc28f5a43f0ad1 [2021-10-16 03:16:10,390 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-16 03:16:10,418 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-16 03:16:10,422 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-16 03:16:10,423 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-16 03:16:10,424 INFO L275 PluginConnector]: CDTParser initialized [2021-10-16 03:16:10,425 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98e4db16-f799-448f-91f7-866e6aa5cc62/bin/utaipan-mTDlp9Zugs/../../sv-benchmarks/c/heap-data/shared_mem2.i [2021-10-16 03:16:10,491 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98e4db16-f799-448f-91f7-866e6aa5cc62/bin/utaipan-mTDlp9Zugs/data/48c2044ee/6929a28d130f4902a2a9f9b74c8d8851/FLAGa82f40d77 [2021-10-16 03:16:11,089 INFO L306 CDTParser]: Found 1 translation units. [2021-10-16 03:16:11,090 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98e4db16-f799-448f-91f7-866e6aa5cc62/sv-benchmarks/c/heap-data/shared_mem2.i [2021-10-16 03:16:11,104 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98e4db16-f799-448f-91f7-866e6aa5cc62/bin/utaipan-mTDlp9Zugs/data/48c2044ee/6929a28d130f4902a2a9f9b74c8d8851/FLAGa82f40d77 [2021-10-16 03:16:11,369 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98e4db16-f799-448f-91f7-866e6aa5cc62/bin/utaipan-mTDlp9Zugs/data/48c2044ee/6929a28d130f4902a2a9f9b74c8d8851 [2021-10-16 03:16:11,372 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-16 03:16:11,373 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-16 03:16:11,374 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-16 03:16:11,374 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-16 03:16:11,378 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-16 03:16:11,379 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 03:16:11" (1/1) ... [2021-10-16 03:16:11,380 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7a929653 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:16:11, skipping insertion in model container [2021-10-16 03:16:11,380 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 03:16:11" (1/1) ... [2021-10-16 03:16:11,387 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-16 03:16:11,429 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-16 03:16:11,744 WARN L228 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_98e4db16-f799-448f-91f7-866e6aa5cc62/sv-benchmarks/c/heap-data/shared_mem2.i[23827,23840] [2021-10-16 03:16:11,747 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-16 03:16:11,761 INFO L203 MainTranslator]: Completed pre-run [2021-10-16 03:16:11,800 WARN L228 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_98e4db16-f799-448f-91f7-866e6aa5cc62/sv-benchmarks/c/heap-data/shared_mem2.i[23827,23840] [2021-10-16 03:16:11,801 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-16 03:16:11,837 INFO L208 MainTranslator]: Completed translation [2021-10-16 03:16:11,837 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:16:11 WrapperNode [2021-10-16 03:16:11,838 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-16 03:16:11,839 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-16 03:16:11,839 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-16 03:16:11,839 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-16 03:16:11,847 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:16:11" (1/1) ... [2021-10-16 03:16:11,865 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:16:11" (1/1) ... [2021-10-16 03:16:11,888 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-16 03:16:11,889 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-16 03:16:11,889 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-16 03:16:11,889 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-16 03:16:11,897 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:16:11" (1/1) ... [2021-10-16 03:16:11,898 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:16:11" (1/1) ... [2021-10-16 03:16:11,902 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:16:11" (1/1) ... [2021-10-16 03:16:11,903 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:16:11" (1/1) ... [2021-10-16 03:16:11,913 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:16:11" (1/1) ... [2021-10-16 03:16:11,917 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:16:11" (1/1) ... [2021-10-16 03:16:11,920 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:16:11" (1/1) ... [2021-10-16 03:16:11,923 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-16 03:16:11,924 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-16 03:16:11,925 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-16 03:16:11,925 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-16 03:16:11,926 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:16:11" (1/1) ... [2021-10-16 03:16:11,933 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-16 03:16:11,944 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98e4db16-f799-448f-91f7-866e6aa5cc62/bin/utaipan-mTDlp9Zugs/z3 [2021-10-16 03:16:11,959 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98e4db16-f799-448f-91f7-866e6aa5cc62/bin/utaipan-mTDlp9Zugs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-16 03:16:11,993 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98e4db16-f799-448f-91f7-866e6aa5cc62/bin/utaipan-mTDlp9Zugs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-16 03:16:12,009 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-10-16 03:16:12,009 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-10-16 03:16:12,009 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-10-16 03:16:12,009 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-16 03:16:12,010 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-10-16 03:16:12,010 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-10-16 03:16:12,010 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-10-16 03:16:12,010 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-16 03:16:12,010 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-16 03:16:12,827 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-16 03:16:12,827 INFO L299 CfgBuilder]: Removed 6 assume(true) statements. [2021-10-16 03:16:12,829 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 03:16:12 BoogieIcfgContainer [2021-10-16 03:16:12,830 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-16 03:16:12,832 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-16 03:16:12,832 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-16 03:16:12,835 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-16 03:16:12,836 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 03:16:11" (1/3) ... [2021-10-16 03:16:12,837 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@68c3108d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 03:16:12, skipping insertion in model container [2021-10-16 03:16:12,837 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:16:11" (2/3) ... [2021-10-16 03:16:12,838 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@68c3108d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 03:16:12, skipping insertion in model container [2021-10-16 03:16:12,838 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 03:16:12" (3/3) ... [2021-10-16 03:16:12,839 INFO L111 eAbstractionObserver]: Analyzing ICFG shared_mem2.i [2021-10-16 03:16:12,845 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-16 03:16:12,846 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-10-16 03:16:12,932 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-16 03:16:12,939 INFO L339 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, mConcurrency=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, mLoopAccelerationTechnique=FAST_UPR [2021-10-16 03:16:12,939 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-10-16 03:16:12,954 INFO L276 IsEmpty]: Start isEmpty. Operand has 16 states, 14 states have (on average 1.5714285714285714) internal successors, (22), 15 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) [2021-10-16 03:16:12,960 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-10-16 03:16:12,960 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 03:16:12,961 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-10-16 03:16:12,961 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-16 03:16:12,971 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 03:16:12,971 INFO L82 PathProgramCache]: Analyzing trace with hash 532134152, now seen corresponding path program 1 times [2021-10-16 03:16:12,985 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-16 03:16:12,985 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1358109595] [2021-10-16 03:16:12,986 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 03:16:12,987 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-16 03:16:12,987 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98e4db16-f799-448f-91f7-866e6aa5cc62/bin/utaipan-mTDlp9Zugs/mathsat [2021-10-16 03:16:12,990 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98e4db16-f799-448f-91f7-866e6aa5cc62/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-16 03:16:12,995 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98e4db16-f799-448f-91f7-866e6aa5cc62/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-10-16 03:16:13,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 03:16:13,110 INFO L263 TraceCheckSpWp]: Trace formula consists of 45 conjuncts, 1 conjunts are in the unsatisfiable core [2021-10-16 03:16:13,115 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 03:16:13,165 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 03:16:13,165 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 03:16:13,192 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 03:16:13,193 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-16 03:16:13,193 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1358109595] [2021-10-16 03:16:13,194 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1358109595] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-16 03:16:13,194 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-16 03:16:13,194 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-10-16 03:16:13,196 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1521933887] [2021-10-16 03:16:13,202 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-10-16 03:16:13,202 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-16 03:16:13,216 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-16 03:16:13,216 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-16 03:16:13,219 INFO L87 Difference]: Start difference. First operand has 16 states, 14 states have (on average 1.5714285714285714) internal successors, (22), 15 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) Second operand has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 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) [2021-10-16 03:16:13,234 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 03:16:13,234 INFO L93 Difference]: Finished difference Result 28 states and 37 transitions. [2021-10-16 03:16:13,234 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-16 03:16:13,236 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 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 8 [2021-10-16 03:16:13,236 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 03:16:13,244 INFO L225 Difference]: With dead ends: 28 [2021-10-16 03:16:13,244 INFO L226 Difference]: Without dead ends: 13 [2021-10-16 03:16:13,247 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1ms TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-16 03:16:13,264 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2021-10-16 03:16:13,276 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2021-10-16 03:16:13,277 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13 states, 12 states have (on average 1.3333333333333333) internal successors, (16), 12 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 03:16:13,278 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 16 transitions. [2021-10-16 03:16:13,279 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 16 transitions. Word has length 8 [2021-10-16 03:16:13,280 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 03:16:13,280 INFO L470 AbstractCegarLoop]: Abstraction has 13 states and 16 transitions. [2021-10-16 03:16:13,280 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 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) [2021-10-16 03:16:13,280 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 16 transitions. [2021-10-16 03:16:13,281 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-10-16 03:16:13,281 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 03:16:13,281 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-16 03:16:13,299 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98e4db16-f799-448f-91f7-866e6aa5cc62/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-10-16 03:16:13,494 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98e4db16-f799-448f-91f7-866e6aa5cc62/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 [2021-10-16 03:16:13,495 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-16 03:16:13,495 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 03:16:13,496 INFO L82 PathProgramCache]: Analyzing trace with hash -982132135, now seen corresponding path program 1 times [2021-10-16 03:16:13,497 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-16 03:16:13,500 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [918165667] [2021-10-16 03:16:13,500 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 03:16:13,500 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-16 03:16:13,500 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98e4db16-f799-448f-91f7-866e6aa5cc62/bin/utaipan-mTDlp9Zugs/mathsat [2021-10-16 03:16:13,501 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98e4db16-f799-448f-91f7-866e6aa5cc62/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-16 03:16:13,522 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98e4db16-f799-448f-91f7-866e6aa5cc62/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-10-16 03:16:13,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 03:16:13,632 INFO L263 TraceCheckSpWp]: Trace formula consists of 46 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-16 03:16:13,634 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 03:16:13,851 INFO L354 Elim1Store]: treesize reduction 92, result has 14.0 percent of original size [2021-10-16 03:16:13,852 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 68 treesize of output 44 [2021-10-16 03:16:13,906 INFO L354 Elim1Store]: treesize reduction 72, result has 17.2 percent of original size [2021-10-16 03:16:13,906 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 44 treesize of output 31 [2021-10-16 03:16:13,938 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 26 treesize of output 24 [2021-10-16 03:16:14,206 INFO L354 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2021-10-16 03:16:14,207 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 26 treesize of output 14 [2021-10-16 03:16:14,256 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 03:16:14,257 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 03:16:14,371 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 03:16:14,371 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-16 03:16:14,372 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [918165667] [2021-10-16 03:16:14,372 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [918165667] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-16 03:16:14,372 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-16 03:16:14,372 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2021-10-16 03:16:14,373 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [373787748] [2021-10-16 03:16:14,374 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-16 03:16:14,374 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-16 03:16:14,376 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-16 03:16:14,376 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-10-16 03:16:14,376 INFO L87 Difference]: Start difference. First operand 13 states and 16 transitions. Second operand has 6 states, 6 states have (on average 2.3333333333333335) internal successors, (14), 6 states have internal predecessors, (14), 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) [2021-10-16 03:16:15,654 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 03:16:15,654 INFO L93 Difference]: Finished difference Result 24 states and 30 transitions. [2021-10-16 03:16:15,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-16 03:16:15,656 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.3333333333333335) internal successors, (14), 6 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2021-10-16 03:16:15,656 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 03:16:15,657 INFO L225 Difference]: With dead ends: 24 [2021-10-16 03:16:15,657 INFO L226 Difference]: Without dead ends: 20 [2021-10-16 03:16:15,658 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 90.0ms TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-10-16 03:16:15,658 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2021-10-16 03:16:15,663 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 20. [2021-10-16 03:16:15,663 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20 states, 19 states have (on average 1.368421052631579) internal successors, (26), 19 states have internal predecessors, (26), 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) [2021-10-16 03:16:15,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 26 transitions. [2021-10-16 03:16:15,664 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 26 transitions. Word has length 9 [2021-10-16 03:16:15,665 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 03:16:15,665 INFO L470 AbstractCegarLoop]: Abstraction has 20 states and 26 transitions. [2021-10-16 03:16:15,665 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.3333333333333335) internal successors, (14), 6 states have internal predecessors, (14), 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) [2021-10-16 03:16:15,665 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 26 transitions. [2021-10-16 03:16:15,666 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-10-16 03:16:15,666 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 03:16:15,666 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-16 03:16:15,690 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98e4db16-f799-448f-91f7-866e6aa5cc62/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-10-16 03:16:15,889 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98e4db16-f799-448f-91f7-866e6aa5cc62/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 [2021-10-16 03:16:15,890 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-16 03:16:15,891 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 03:16:15,891 INFO L82 PathProgramCache]: Analyzing trace with hash -17837994, now seen corresponding path program 1 times [2021-10-16 03:16:15,891 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-16 03:16:15,892 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2047252062] [2021-10-16 03:16:15,892 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 03:16:15,892 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-16 03:16:15,892 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98e4db16-f799-448f-91f7-866e6aa5cc62/bin/utaipan-mTDlp9Zugs/mathsat [2021-10-16 03:16:15,893 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98e4db16-f799-448f-91f7-866e6aa5cc62/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-16 03:16:15,900 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98e4db16-f799-448f-91f7-866e6aa5cc62/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-10-16 03:16:16,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 03:16:16,042 INFO L263 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 11 conjunts are in the unsatisfiable core [2021-10-16 03:16:16,044 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 03:16:17,735 INFO L354 Elim1Store]: treesize reduction 75, result has 29.9 percent of original size [2021-10-16 03:16:17,736 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 58 treesize of output 51 [2021-10-16 03:16:17,832 INFO L354 Elim1Store]: treesize reduction 62, result has 28.7 percent of original size [2021-10-16 03:16:17,832 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 51 treesize of output 48 [2021-10-16 03:16:18,075 INFO L354 Elim1Store]: treesize reduction 12, result has 40.0 percent of original size [2021-10-16 03:16:18,076 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 20 treesize of output 22 [2021-10-16 03:16:18,560 INFO L354 Elim1Store]: treesize reduction 170, result has 11.5 percent of original size [2021-10-16 03:16:18,560 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 4 case distinctions, treesize of input 103 treesize of output 94 [2021-10-16 03:16:18,582 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-16 03:16:18,587 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 82 [2021-10-16 03:16:20,388 INFO L354 Elim1Store]: treesize reduction 174, result has 14.7 percent of original size [2021-10-16 03:16:20,389 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 4 case distinctions, treesize of input 82 treesize of output 64 [2021-10-16 03:16:20,437 INFO L354 Elim1Store]: treesize reduction 16, result has 36.0 percent of original size [2021-10-16 03:16:20,438 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 49 treesize of output 51 [2021-10-16 03:16:20,450 INFO L883 QuantifierPusher]: Run 10 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-10-16 03:16:20,497 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 15 treesize of output 7 [2021-10-16 03:16:20,523 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 03:16:20,523 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 03:16:20,619 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-16 03:16:20,621 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 62 [2021-10-16 03:16:20,625 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-16 03:16:20,627 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 70 [2021-10-16 03:16:20,631 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-16 03:16:20,633 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-10-16 03:16:22,694 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ULTIMATE.start_main_~n~0.base_4 (_ BitVec 32)) (ULTIMATE.start_main_~x~0 (_ BitVec 32)) (v_DerPreprocessor_4 (_ BitVec 32)) (v_DerPreprocessor_3 (_ BitVec 32)) (v_DerPreprocessor_2 (_ BitVec 32)) (v_ULTIMATE.start_main_~n~0.offset_4 (_ BitVec 32)) (ULTIMATE.start_main_~list~0.offset (_ BitVec 32))) (or (bvslt (select (select (let ((.cse0 (store |c_#memory_int| v_ULTIMATE.start_main_~n~0.base_4 (store (store (store (select |c_#memory_int| v_ULTIMATE.start_main_~n~0.base_4) v_ULTIMATE.start_main_~n~0.offset_4 ULTIMATE.start_main_~x~0) (bvadd v_ULTIMATE.start_main_~n~0.offset_4 (_ bv4 32)) v_DerPreprocessor_2) (bvadd v_ULTIMATE.start_main_~n~0.offset_4 (_ bv8 32)) v_DerPreprocessor_3)))) (store .cse0 c_ULTIMATE.start_main_~list~0.base (store (select .cse0 c_ULTIMATE.start_main_~list~0.base) (bvadd (_ bv8 32) ULTIMATE.start_main_~list~0.offset) v_DerPreprocessor_4))) c_ULTIMATE.start_main_~m~0.base) c_ULTIMATE.start_main_~m~0.offset) (_ bv100 32)) (not (= (_ bv0 1) (select |c_#valid| v_ULTIMATE.start_main_~n~0.base_4))))) is different from false [2021-10-16 03:16:22,814 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 1 not checked. [2021-10-16 03:16:22,814 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-16 03:16:22,814 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2047252062] [2021-10-16 03:16:22,815 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2047252062] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-16 03:16:22,815 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [394980282] [2021-10-16 03:16:22,815 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 03:16:22,815 INFO L170 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-10-16 03:16:22,816 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98e4db16-f799-448f-91f7-866e6aa5cc62/bin/utaipan-mTDlp9Zugs/cvc4 [2021-10-16 03:16:22,818 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98e4db16-f799-448f-91f7-866e6aa5cc62/bin/utaipan-mTDlp9Zugs/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-10-16 03:16:22,837 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98e4db16-f799-448f-91f7-866e6aa5cc62/bin/utaipan-mTDlp9Zugs/cvc4 --incremental --print-success --lang smt (5)] Waiting until timeout for monitored process [2021-10-16 03:16:23,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 03:16:23,012 INFO L263 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 11 conjunts are in the unsatisfiable core [2021-10-16 03:16:23,015 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 03:16:23,048 INFO L354 Elim1Store]: treesize reduction 12, result has 40.0 percent of original size [2021-10-16 03:16:23,049 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 21 treesize of output 23 [2021-10-16 03:16:23,090 INFO L354 Elim1Store]: treesize reduction 27, result has 20.6 percent of original size [2021-10-16 03:16:23,091 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 58 treesize of output 34 [2021-10-16 03:16:23,115 INFO L354 Elim1Store]: treesize reduction 27, result has 20.6 percent of original size [2021-10-16 03:16:23,115 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 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 34 treesize of output 21 [2021-10-16 03:16:23,437 INFO L354 Elim1Store]: treesize reduction 170, result has 11.5 percent of original size [2021-10-16 03:16:23,438 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 4 case distinctions, treesize of input 102 treesize of output 93 [2021-10-16 03:16:23,452 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-16 03:16:23,453 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 81 [2021-10-16 03:16:24,242 INFO L354 Elim1Store]: treesize reduction 174, result has 14.7 percent of original size [2021-10-16 03:16:24,242 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 4 case distinctions, treesize of input 81 treesize of output 63 [2021-10-16 03:16:24,282 INFO L354 Elim1Store]: treesize reduction 16, result has 36.0 percent of original size [2021-10-16 03:16:24,283 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 48 treesize of output 50 [2021-10-16 03:16:24,292 INFO L883 QuantifierPusher]: Run 10 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-10-16 03:16:24,324 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 15 treesize of output 7 [2021-10-16 03:16:24,339 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 03:16:24,339 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 03:16:24,390 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-16 03:16:24,392 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-10-16 03:16:24,396 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-16 03:16:24,402 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 71 [2021-10-16 03:16:24,406 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-16 03:16:24,407 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-10-16 03:16:26,462 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ULTIMATE.start_main_~n~0.base_6 (_ BitVec 32)) (v_ULTIMATE.start_main_~n~0.offset_6 (_ BitVec 32)) (v_DerPreprocessor_7 (_ BitVec 32)) (v_DerPreprocessor_6 (_ BitVec 32)) (ULTIMATE.start_main_~x~0 (_ BitVec 32)) (ULTIMATE.start_main_~list~0.offset (_ BitVec 32)) (v_DerPreprocessor_8 (_ BitVec 32))) (or (not (= (_ bv0 1) (bvneg (select |c_#valid| v_ULTIMATE.start_main_~n~0.base_6)))) (bvslt (select (select (let ((.cse0 (store |c_#memory_int| v_ULTIMATE.start_main_~n~0.base_6 (store (store (store (select |c_#memory_int| v_ULTIMATE.start_main_~n~0.base_6) v_ULTIMATE.start_main_~n~0.offset_6 ULTIMATE.start_main_~x~0) (bvadd v_ULTIMATE.start_main_~n~0.offset_6 (_ bv4 32)) v_DerPreprocessor_6) (bvadd v_ULTIMATE.start_main_~n~0.offset_6 (_ bv8 32)) v_DerPreprocessor_7)))) (store .cse0 c_ULTIMATE.start_main_~list~0.base (store (select .cse0 c_ULTIMATE.start_main_~list~0.base) (bvadd (_ bv8 32) ULTIMATE.start_main_~list~0.offset) v_DerPreprocessor_8))) c_ULTIMATE.start_main_~m~0.base) c_ULTIMATE.start_main_~m~0.offset) (_ bv100 32)))) is different from false [2021-10-16 03:16:26,567 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 1 not checked. [2021-10-16 03:16:26,567 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [394980282] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-16 03:16:26,567 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [503162940] [2021-10-16 03:16:26,567 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 03:16:26,568 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-16 03:16:26,568 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98e4db16-f799-448f-91f7-866e6aa5cc62/bin/utaipan-mTDlp9Zugs/z3 [2021-10-16 03:16:26,571 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98e4db16-f799-448f-91f7-866e6aa5cc62/bin/utaipan-mTDlp9Zugs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-16 03:16:26,591 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98e4db16-f799-448f-91f7-866e6aa5cc62/bin/utaipan-mTDlp9Zugs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-10-16 03:16:26,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 03:16:26,694 INFO L263 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 11 conjunts are in the unsatisfiable core [2021-10-16 03:16:26,697 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 03:16:27,969 INFO L354 Elim1Store]: treesize reduction 75, result has 29.9 percent of original size [2021-10-16 03:16:27,969 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 58 treesize of output 51 [2021-10-16 03:16:28,049 INFO L354 Elim1Store]: treesize reduction 62, result has 28.7 percent of original size [2021-10-16 03:16:28,049 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 51 treesize of output 48 [2021-10-16 03:16:28,206 INFO L354 Elim1Store]: treesize reduction 12, result has 40.0 percent of original size [2021-10-16 03:16:28,207 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 19 treesize of output 21 [2021-10-16 03:16:28,511 INFO L354 Elim1Store]: treesize reduction 170, result has 11.5 percent of original size [2021-10-16 03:16:28,511 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 4 case distinctions, treesize of input 104 treesize of output 95 [2021-10-16 03:16:28,522 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-16 03:16:28,525 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 83 [2021-10-16 03:16:29,249 INFO L354 Elim1Store]: treesize reduction 174, result has 14.7 percent of original size [2021-10-16 03:16:29,250 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 4 case distinctions, treesize of input 83 treesize of output 65 [2021-10-16 03:16:29,290 INFO L354 Elim1Store]: treesize reduction 16, result has 36.0 percent of original size [2021-10-16 03:16:29,290 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 50 treesize of output 52 [2021-10-16 03:16:29,330 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 15 treesize of output 7 [2021-10-16 03:16:29,343 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 03:16:29,343 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 03:16:29,419 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-16 03:16:29,422 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 62 [2021-10-16 03:16:29,426 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-16 03:16:29,428 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 70 [2021-10-16 03:16:29,434 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-16 03:16:29,436 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-10-16 03:16:31,485 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ULTIMATE.start_main_~n~0.offset_8 (_ BitVec 32)) (ULTIMATE.start_main_~x~0 (_ BitVec 32)) (v_DerPreprocessor_10 (_ BitVec 32)) (v_DerPreprocessor_11 (_ BitVec 32)) (v_DerPreprocessor_12 (_ BitVec 32)) (v_ULTIMATE.start_main_~n~0.base_8 (_ BitVec 32)) (ULTIMATE.start_main_~list~0.offset (_ BitVec 32))) (or (not (= (_ bv0 1) (select |c_#valid| v_ULTIMATE.start_main_~n~0.base_8))) (bvslt (select (select (let ((.cse0 (store |c_#memory_int| v_ULTIMATE.start_main_~n~0.base_8 (store (store (store (select |c_#memory_int| v_ULTIMATE.start_main_~n~0.base_8) v_ULTIMATE.start_main_~n~0.offset_8 ULTIMATE.start_main_~x~0) (bvadd v_ULTIMATE.start_main_~n~0.offset_8 (_ bv4 32)) v_DerPreprocessor_10) (bvadd v_ULTIMATE.start_main_~n~0.offset_8 (_ bv8 32)) v_DerPreprocessor_11)))) (store .cse0 c_ULTIMATE.start_main_~list~0.base (store (select .cse0 c_ULTIMATE.start_main_~list~0.base) (bvadd (_ bv8 32) ULTIMATE.start_main_~list~0.offset) v_DerPreprocessor_12))) c_ULTIMATE.start_main_~m~0.base) c_ULTIMATE.start_main_~m~0.offset) (_ bv100 32)))) is different from false [2021-10-16 03:16:31,581 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 1 not checked. [2021-10-16 03:16:31,582 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [503162940] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-16 03:16:31,582 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 6 imperfect interpolant sequences. [2021-10-16 03:16:31,582 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5, 5, 5, 5] total 10 [2021-10-16 03:16:31,583 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [70960883] [2021-10-16 03:16:31,583 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-10-16 03:16:31,583 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-16 03:16:31,584 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-10-16 03:16:31,585 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=30, Unknown=3, NotChecked=36, Total=90 [2021-10-16 03:16:31,585 INFO L87 Difference]: Start difference. First operand 20 states and 26 transitions. Second operand has 10 states, 10 states have (on average 2.4) internal successors, (24), 10 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) [2021-10-16 03:16:37,815 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 03:16:37,815 INFO L93 Difference]: Finished difference Result 33 states and 44 transitions. [2021-10-16 03:16:37,816 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-16 03:16:37,816 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 2.4) internal successors, (24), 10 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 11 [2021-10-16 03:16:37,816 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 03:16:37,818 INFO L225 Difference]: With dead ends: 33 [2021-10-16 03:16:37,818 INFO L226 Difference]: Without dead ends: 29 [2021-10-16 03:16:37,818 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 3 IntricatePredicates, 1 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 10310.0ms TimeCoverageRelationStatistics Valid=33, Invalid=48, Unknown=3, NotChecked=48, Total=132 [2021-10-16 03:16:37,819 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2021-10-16 03:16:37,823 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 22. [2021-10-16 03:16:37,823 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22 states, 21 states have (on average 1.4285714285714286) internal successors, (30), 21 states have internal predecessors, (30), 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) [2021-10-16 03:16:37,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 30 transitions. [2021-10-16 03:16:37,824 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 30 transitions. Word has length 11 [2021-10-16 03:16:37,824 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 03:16:37,825 INFO L470 AbstractCegarLoop]: Abstraction has 22 states and 30 transitions. [2021-10-16 03:16:37,825 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 2.4) internal successors, (24), 10 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) [2021-10-16 03:16:37,825 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 30 transitions. [2021-10-16 03:16:37,826 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-10-16 03:16:37,826 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 03:16:37,826 INFO L512 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-16 03:16:37,838 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98e4db16-f799-448f-91f7-866e6aa5cc62/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (4)] Ended with exit code 0 [2021-10-16 03:16:38,054 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98e4db16-f799-448f-91f7-866e6aa5cc62/bin/utaipan-mTDlp9Zugs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2021-10-16 03:16:38,235 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98e4db16-f799-448f-91f7-866e6aa5cc62/bin/utaipan-mTDlp9Zugs/cvc4 --incremental --print-success --lang smt (5)] Forceful destruction successful, exit code 0 [2021-10-16 03:16:38,433 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98e4db16-f799-448f-91f7-866e6aa5cc62/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98e4db16-f799-448f-91f7-866e6aa5cc62/bin/utaipan-mTDlp9Zugs/z3 -smt2 -in SMTLIB2_COMPLIANT=true,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98e4db16-f799-448f-91f7-866e6aa5cc62/bin/utaipan-mTDlp9Zugs/cvc4 --incremental --print-success --lang smt [2021-10-16 03:16:38,434 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-16 03:16:38,434 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 03:16:38,434 INFO L82 PathProgramCache]: Analyzing trace with hash 594646320, now seen corresponding path program 1 times [2021-10-16 03:16:38,435 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-16 03:16:38,435 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1951315840] [2021-10-16 03:16:38,435 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 03:16:38,435 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-16 03:16:38,435 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98e4db16-f799-448f-91f7-866e6aa5cc62/bin/utaipan-mTDlp9Zugs/mathsat [2021-10-16 03:16:38,437 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98e4db16-f799-448f-91f7-866e6aa5cc62/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-16 03:16:38,440 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98e4db16-f799-448f-91f7-866e6aa5cc62/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-10-16 03:16:38,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 03:16:38,614 INFO L263 TraceCheckSpWp]: Trace formula consists of 58 conjuncts, 14 conjunts are in the unsatisfiable core [2021-10-16 03:16:38,615 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 03:16:38,741 INFO L354 Elim1Store]: treesize reduction 75, result has 29.9 percent of original size [2021-10-16 03:16:38,742 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 58 treesize of output 51 [2021-10-16 03:16:38,806 INFO L354 Elim1Store]: treesize reduction 62, result has 28.7 percent of original size [2021-10-16 03:16:38,806 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 51 treesize of output 48 [2021-10-16 03:16:38,864 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 03:16:38,870 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 19 [2021-10-16 03:16:38,894 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 10 treesize of output 8 [2021-10-16 03:16:38,911 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 03:16:38,913 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 19 [2021-10-16 03:16:39,319 INFO L354 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2021-10-16 03:16:39,320 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 106 treesize of output 76 [2021-10-16 03:16:39,328 INFO L354 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2021-10-16 03:16:39,329 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 70 treesize of output 46 [2021-10-16 03:16:39,355 INFO L354 Elim1Store]: treesize reduction 39, result has 15.2 percent of original size [2021-10-16 03:16:39,356 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 40 treesize of output 27 [2021-10-16 03:16:39,478 INFO L354 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2021-10-16 03:16:39,479 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 30 treesize of output 14 [2021-10-16 03:16:39,513 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 03:16:39,513 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 03:16:39,784 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 03:16:39,784 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-16 03:16:39,785 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1951315840] [2021-10-16 03:16:39,785 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1951315840] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-16 03:16:39,785 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1641548952] [2021-10-16 03:16:39,785 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 03:16:39,785 INFO L170 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-10-16 03:16:39,785 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98e4db16-f799-448f-91f7-866e6aa5cc62/bin/utaipan-mTDlp9Zugs/cvc4 [2021-10-16 03:16:39,799 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98e4db16-f799-448f-91f7-866e6aa5cc62/bin/utaipan-mTDlp9Zugs/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-10-16 03:16:39,817 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98e4db16-f799-448f-91f7-866e6aa5cc62/bin/utaipan-mTDlp9Zugs/cvc4 --incremental --print-success --lang smt (8)] Waiting until timeout for monitored process [2021-10-16 03:16:40,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 03:16:40,019 INFO L263 TraceCheckSpWp]: Trace formula consists of 58 conjuncts, 17 conjunts are in the unsatisfiable core [2021-10-16 03:16:40,021 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 03:16:40,051 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 03:16:40,051 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 19 [2021-10-16 03:16:40,070 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 03:16:40,105 INFO L354 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2021-10-16 03:16:40,105 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 58 treesize of output 38 [2021-10-16 03:16:40,115 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 03:16:40,119 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-10-16 03:16:40,119 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 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 38 treesize of output 25 [2021-10-16 03:16:40,142 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 03:16:40,144 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 19 [2021-10-16 03:16:40,721 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-10-16 03:16:40,722 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 88 treesize of output 68 [2021-10-16 03:16:40,798 INFO L354 Elim1Store]: treesize reduction 88, result has 20.7 percent of original size [2021-10-16 03:16:40,798 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 62 treesize of output 60 [2021-10-16 03:16:40,807 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-10-16 03:16:40,807 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 61 treesize of output 45 [2021-10-16 03:16:41,198 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 03:16:41,198 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 03:16:42,389 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 03:16:42,389 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1641548952] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-16 03:16:42,390 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1778426788] [2021-10-16 03:16:42,390 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 03:16:42,390 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-16 03:16:42,390 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98e4db16-f799-448f-91f7-866e6aa5cc62/bin/utaipan-mTDlp9Zugs/z3 [2021-10-16 03:16:42,406 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98e4db16-f799-448f-91f7-866e6aa5cc62/bin/utaipan-mTDlp9Zugs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-16 03:16:42,417 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98e4db16-f799-448f-91f7-866e6aa5cc62/bin/utaipan-mTDlp9Zugs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2021-10-16 03:16:42,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 03:16:42,584 INFO L263 TraceCheckSpWp]: Trace formula consists of 58 conjuncts, 13 conjunts are in the unsatisfiable core [2021-10-16 03:16:42,586 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 03:16:42,609 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 03:16:42,696 INFO L354 Elim1Store]: treesize reduction 50, result has 32.4 percent of original size [2021-10-16 03:16:42,696 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 58 treesize of output 51 [2021-10-16 03:16:42,701 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 03:16:42,741 INFO L354 Elim1Store]: treesize reduction 37, result has 31.5 percent of original size [2021-10-16 03:16:42,741 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 51 treesize of output 48 [2021-10-16 03:16:42,791 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 03:16:42,794 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 19 [2021-10-16 03:16:42,821 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 03:16:42,824 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 19 [2021-10-16 03:16:42,847 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 10 treesize of output 8 [2021-10-16 03:16:43,340 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-10-16 03:16:43,340 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 88 treesize of output 68 [2021-10-16 03:16:43,384 INFO L354 Elim1Store]: treesize reduction 104, result has 9.6 percent of original size [2021-10-16 03:16:43,385 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 62 treesize of output 48 [2021-10-16 03:16:43,399 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-10-16 03:16:43,399 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 39 treesize of output 27 [2021-10-16 03:16:43,594 INFO L354 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2021-10-16 03:16:43,594 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 26 treesize of output 14 [2021-10-16 03:16:43,609 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 03:16:43,609 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 03:16:43,718 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 03:16:43,719 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1778426788] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-16 03:16:43,719 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 6 imperfect interpolant sequences. [2021-10-16 03:16:43,719 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 7, 10, 6, 6] total 26 [2021-10-16 03:16:43,719 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2085067546] [2021-10-16 03:16:43,720 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2021-10-16 03:16:43,720 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-16 03:16:43,721 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2021-10-16 03:16:43,722 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=113, Invalid=537, Unknown=0, NotChecked=0, Total=650 [2021-10-16 03:16:43,722 INFO L87 Difference]: Start difference. First operand 22 states and 30 transitions. Second operand has 26 states, 26 states have (on average 1.9230769230769231) internal successors, (50), 26 states have internal predecessors, (50), 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) [2021-10-16 03:16:56,171 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 03:16:56,171 INFO L93 Difference]: Finished difference Result 44 states and 57 transitions. [2021-10-16 03:16:56,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-10-16 03:16:56,172 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 1.9230769230769231) internal successors, (50), 26 states have internal predecessors, (50), 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 13 [2021-10-16 03:16:56,172 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 03:16:56,173 INFO L225 Difference]: With dead ends: 44 [2021-10-16 03:16:56,173 INFO L226 Difference]: Without dead ends: 40 [2021-10-16 03:16:56,174 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 250 ImplicationChecksByTransitivity, 3848.7ms TimeCoverageRelationStatistics Valid=253, Invalid=1007, Unknown=0, NotChecked=0, Total=1260 [2021-10-16 03:16:56,174 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2021-10-16 03:16:56,179 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 30. [2021-10-16 03:16:56,179 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30 states, 29 states have (on average 1.3793103448275863) internal successors, (40), 29 states have internal predecessors, (40), 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) [2021-10-16 03:16:56,180 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 40 transitions. [2021-10-16 03:16:56,180 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 40 transitions. Word has length 13 [2021-10-16 03:16:56,180 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 03:16:56,180 INFO L470 AbstractCegarLoop]: Abstraction has 30 states and 40 transitions. [2021-10-16 03:16:56,180 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 1.9230769230769231) internal successors, (50), 26 states have internal predecessors, (50), 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) [2021-10-16 03:16:56,180 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 40 transitions. [2021-10-16 03:16:56,181 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-10-16 03:16:56,181 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 03:16:56,181 INFO L512 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-16 03:16:56,201 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98e4db16-f799-448f-91f7-866e6aa5cc62/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-10-16 03:16:56,423 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98e4db16-f799-448f-91f7-866e6aa5cc62/bin/utaipan-mTDlp9Zugs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2021-10-16 03:16:56,608 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98e4db16-f799-448f-91f7-866e6aa5cc62/bin/utaipan-mTDlp9Zugs/cvc4 --incremental --print-success --lang smt (8)] Forceful destruction successful, exit code 0 [2021-10-16 03:16:56,808 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98e4db16-f799-448f-91f7-866e6aa5cc62/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98e4db16-f799-448f-91f7-866e6aa5cc62/bin/utaipan-mTDlp9Zugs/z3 -smt2 -in SMTLIB2_COMPLIANT=true,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98e4db16-f799-448f-91f7-866e6aa5cc62/bin/utaipan-mTDlp9Zugs/cvc4 --incremental --print-success --lang smt [2021-10-16 03:16:56,812 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-16 03:16:56,812 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 03:16:56,812 INFO L82 PathProgramCache]: Analyzing trace with hash -1044104429, now seen corresponding path program 2 times [2021-10-16 03:16:56,812 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-16 03:16:56,812 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1479789531] [2021-10-16 03:16:56,812 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-16 03:16:56,813 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-16 03:16:56,813 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98e4db16-f799-448f-91f7-866e6aa5cc62/bin/utaipan-mTDlp9Zugs/mathsat [2021-10-16 03:16:56,814 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98e4db16-f799-448f-91f7-866e6aa5cc62/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-16 03:16:56,815 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98e4db16-f799-448f-91f7-866e6aa5cc62/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2021-10-16 03:16:57,045 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-10-16 03:16:57,045 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-16 03:16:57,051 INFO L263 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 18 conjunts are in the unsatisfiable core [2021-10-16 03:16:57,053 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 03:16:57,081 INFO L354 Elim1Store]: treesize reduction 12, result has 40.0 percent of original size [2021-10-16 03:16:57,082 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 19 treesize of output 21 [2021-10-16 03:16:57,110 INFO L354 Elim1Store]: treesize reduction 27, result has 20.6 percent of original size [2021-10-16 03:16:57,115 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 58 treesize of output 34 [2021-10-16 03:16:57,129 INFO L354 Elim1Store]: treesize reduction 27, result has 20.6 percent of original size [2021-10-16 03:16:57,129 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 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 34 treesize of output 21 [2021-10-16 03:16:57,347 INFO L354 Elim1Store]: treesize reduction 158, result has 12.2 percent of original size [2021-10-16 03:16:57,348 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 97 treesize of output 88 [2021-10-16 03:16:57,365 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-16 03:16:57,366 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 76 [2021-10-16 03:16:58,382 INFO L354 Elim1Store]: treesize reduction 120, result has 20.0 percent of original size [2021-10-16 03:16:58,382 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 76 treesize of output 58 [2021-10-16 03:16:58,407 INFO L354 Elim1Store]: treesize reduction 8, result has 52.9 percent of original size [2021-10-16 03:16:58,407 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 43 treesize of output 45 [2021-10-16 03:16:58,411 INFO L883 QuantifierPusher]: Run 10 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-10-16 03:16:58,536 INFO L354 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2021-10-16 03:16:58,536 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 70 treesize of output 66 [2021-10-16 03:16:58,544 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-10-16 03:16:58,544 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 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 64 treesize of output 51 [2021-10-16 03:16:58,614 INFO L354 Elim1Store]: treesize reduction 66, result has 27.5 percent of original size [2021-10-16 03:16:58,614 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 49 treesize of output 42 [2021-10-16 03:16:58,771 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 31 treesize of output 15 [2021-10-16 03:16:58,816 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 03:16:58,816 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 03:16:58,889 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-16 03:16:58,890 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-10-16 03:16:58,893 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-16 03:16:58,894 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-10-16 03:16:58,896 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-16 03:16:58,898 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-10-16 03:17:00,969 WARN L838 $PredicateComparison]: unable to prove that (forall ((ULTIMATE.start_main_~x~0 (_ BitVec 32)) (v_ULTIMATE.start_main_~n~0.base_13 (_ BitVec 32)) (v_DerPreprocessor_14 (_ BitVec 32)) (v_DerPreprocessor_15 (_ BitVec 32)) (v_DerPreprocessor_16 (_ BitVec 32))) (or (not (bvslt ULTIMATE.start_main_~x~0 (_ bv10 32))) (bvslt (select (select (let ((.cse0 (store |c_#memory_int| v_ULTIMATE.start_main_~n~0.base_13 (store (store (store (select |c_#memory_int| v_ULTIMATE.start_main_~n~0.base_13) (_ bv0 32) ULTIMATE.start_main_~x~0) (_ bv4 32) v_DerPreprocessor_16) (_ bv8 32) v_DerPreprocessor_15)))) (store .cse0 c_ULTIMATE.start_main_~list~0.base (store (select .cse0 c_ULTIMATE.start_main_~list~0.base) (bvadd (_ bv8 32) c_ULTIMATE.start_main_~list~0.offset) v_DerPreprocessor_14))) c_ULTIMATE.start_main_~m~0.base) c_ULTIMATE.start_main_~m~0.offset) (_ bv100 32)) (not (bvsgt ULTIMATE.start_main_~x~0 (_ bv0 32))))) is different from false [2021-10-16 03:17:01,072 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-16 03:17:01,074 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 144 [2021-10-16 03:17:01,078 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-16 03:17:01,079 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 204 [2021-10-16 03:17:01,083 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-16 03:17:01,084 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 245 [2021-10-16 03:17:03,701 WARN L838 $PredicateComparison]: unable to prove that (forall ((ULTIMATE.start_main_~x~0 (_ BitVec 32)) (v_DerPreprocessor_19 (_ BitVec 32)) (v_ULTIMATE.start_main_~n~0.base_13 (_ BitVec 32)) (v_ULTIMATE.start_main_~n~0.offset_14 (_ BitVec 32)) (v_ULTIMATE.start_main_~n~0.base_14 (_ BitVec 32)) (v_ULTIMATE.start_main_~x~0_21 (_ BitVec 32)) (ULTIMATE.start_main_~list~0.offset (_ BitVec 32)) (v_DerPreprocessor_14 (_ BitVec 32)) (v_DerPreprocessor_17 (_ BitVec 32)) (v_DerPreprocessor_18 (_ BitVec 32)) (v_DerPreprocessor_15 (_ BitVec 32)) (v_DerPreprocessor_16 (_ BitVec 32))) (or (not (bvslt v_ULTIMATE.start_main_~x~0_21 (_ bv10 32))) (bvslt (select (select (let ((.cse1 (bvadd (_ bv8 32) ULTIMATE.start_main_~list~0.offset))) (let ((.cse0 (let ((.cse2 (let ((.cse3 (store |c_#memory_int| v_ULTIMATE.start_main_~n~0.base_14 (store (store (store (select |c_#memory_int| v_ULTIMATE.start_main_~n~0.base_14) v_ULTIMATE.start_main_~n~0.offset_14 ULTIMATE.start_main_~x~0) (bvadd (_ bv4 32) v_ULTIMATE.start_main_~n~0.offset_14) v_DerPreprocessor_19) (bvadd (_ bv8 32) v_ULTIMATE.start_main_~n~0.offset_14) v_DerPreprocessor_18)))) (store .cse3 c_ULTIMATE.start_main_~list~0.base (store (select .cse3 c_ULTIMATE.start_main_~list~0.base) .cse1 v_DerPreprocessor_17))))) (store .cse2 v_ULTIMATE.start_main_~n~0.base_13 (store (store (store (select .cse2 v_ULTIMATE.start_main_~n~0.base_13) (_ bv0 32) v_ULTIMATE.start_main_~x~0_21) (_ bv4 32) v_DerPreprocessor_16) (_ bv8 32) v_DerPreprocessor_15))))) (store .cse0 c_ULTIMATE.start_main_~list~0.base (store (select .cse0 c_ULTIMATE.start_main_~list~0.base) .cse1 v_DerPreprocessor_14)))) c_ULTIMATE.start_main_~m~0.base) c_ULTIMATE.start_main_~m~0.offset) (_ bv100 32)) (not (bvsgt v_ULTIMATE.start_main_~x~0_21 (_ bv0 32))) (not (= (_ bv0 1) (bvneg (select |c_#valid| v_ULTIMATE.start_main_~n~0.base_14)))))) is different from false [2021-10-16 03:17:04,329 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 4 not checked. [2021-10-16 03:17:04,329 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-16 03:17:04,329 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1479789531] [2021-10-16 03:17:04,329 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1479789531] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-16 03:17:04,330 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1365633630] [2021-10-16 03:17:04,330 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-16 03:17:04,330 INFO L170 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-10-16 03:17:04,330 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98e4db16-f799-448f-91f7-866e6aa5cc62/bin/utaipan-mTDlp9Zugs/cvc4 [2021-10-16 03:17:04,341 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98e4db16-f799-448f-91f7-866e6aa5cc62/bin/utaipan-mTDlp9Zugs/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-10-16 03:17:04,361 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98e4db16-f799-448f-91f7-866e6aa5cc62/bin/utaipan-mTDlp9Zugs/cvc4 --incremental --print-success --lang smt (11)] Waiting until timeout for monitored process [2021-10-16 03:17:04,646 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-16 03:17:04,646 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [10157265] [2021-10-16 03:17:04,646 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-16 03:17:04,646 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-16 03:17:04,646 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98e4db16-f799-448f-91f7-866e6aa5cc62/bin/utaipan-mTDlp9Zugs/z3 [2021-10-16 03:17:04,647 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98e4db16-f799-448f-91f7-866e6aa5cc62/bin/utaipan-mTDlp9Zugs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-16 03:17:04,654 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98e4db16-f799-448f-91f7-866e6aa5cc62/bin/utaipan-mTDlp9Zugs/cvc4 --incremental --print-success --lang smt (11)] Ended with exit code 1 [2021-10-16 03:17:04,663 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98e4db16-f799-448f-91f7-866e6aa5cc62/bin/utaipan-mTDlp9Zugs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2021-10-16 03:17:05,035 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-10-16 03:17:05,035 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-16 03:17:05,039 INFO L263 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 16 conjunts are in the unsatisfiable core [2021-10-16 03:17:05,041 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 03:17:05,080 INFO L354 Elim1Store]: treesize reduction 12, result has 40.0 percent of original size [2021-10-16 03:17:05,081 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 20 treesize of output 22 [2021-10-16 03:17:05,123 INFO L354 Elim1Store]: treesize reduction 27, result has 20.6 percent of original size [2021-10-16 03:17:05,123 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 58 treesize of output 34 [2021-10-16 03:17:05,146 INFO L354 Elim1Store]: treesize reduction 27, result has 20.6 percent of original size [2021-10-16 03:17:05,146 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 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 34 treesize of output 21 [2021-10-16 03:17:05,509 INFO L354 Elim1Store]: treesize reduction 158, result has 12.2 percent of original size [2021-10-16 03:17:05,509 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 105 treesize of output 96 [2021-10-16 03:17:05,515 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-16 03:17:05,517 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 84 [2021-10-16 03:17:06,196 INFO L354 Elim1Store]: treesize reduction 120, result has 20.0 percent of original size [2021-10-16 03:17:06,196 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 84 treesize of output 66 [2021-10-16 03:17:06,262 INFO L354 Elim1Store]: treesize reduction 30, result has 45.5 percent of original size [2021-10-16 03:17:06,262 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 51 treesize of output 68 [2021-10-16 03:17:06,606 INFO L354 Elim1Store]: treesize reduction 92, result has 14.0 percent of original size [2021-10-16 03:17:06,606 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 2 case distinctions, treesize of input 120 treesize of output 108 [2021-10-16 03:17:06,614 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-16 03:17:06,615 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 99 [2021-10-16 03:17:06,693 INFO L354 Elim1Store]: treesize reduction 110, result has 13.4 percent of original size [2021-10-16 03:17:06,693 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 2 case distinctions, treesize of input 99 treesize of output 72 [2021-10-16 03:17:06,757 INFO L354 Elim1Store]: treesize reduction 36, result has 26.5 percent of original size [2021-10-16 03:17:06,757 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 60 treesize of output 64 [2021-10-16 03:17:06,767 INFO L883 QuantifierPusher]: Run 10 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-10-16 03:17:06,818 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 15 treesize of output 7 [2021-10-16 03:17:06,847 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 03:17:06,847 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 03:17:06,899 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-16 03:17:06,901 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 62 [2021-10-16 03:17:06,905 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-16 03:17:06,906 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 70 [2021-10-16 03:17:06,910 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-16 03:17:06,911 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-10-16 03:17:08,969 WARN L838 $PredicateComparison]: unable to prove that (forall ((ULTIMATE.start_main_~x~0 (_ BitVec 32)) (v_DerPreprocessor_24 (_ BitVec 32)) (v_DerPreprocessor_22 (_ BitVec 32)) (v_ULTIMATE.start_main_~n~0.offset_16 (_ BitVec 32)) (v_DerPreprocessor_23 (_ BitVec 32)) (v_ULTIMATE.start_main_~n~0.base_17 (_ BitVec 32))) (or (not (= (_ bv0 1) (select |c_#valid| v_ULTIMATE.start_main_~n~0.base_17))) (bvslt (select (select (let ((.cse0 (store |c_#memory_int| v_ULTIMATE.start_main_~n~0.base_17 (store (store (store (select |c_#memory_int| v_ULTIMATE.start_main_~n~0.base_17) v_ULTIMATE.start_main_~n~0.offset_16 ULTIMATE.start_main_~x~0) (bvadd (_ bv4 32) v_ULTIMATE.start_main_~n~0.offset_16) v_DerPreprocessor_22) (bvadd (_ bv8 32) v_ULTIMATE.start_main_~n~0.offset_16) v_DerPreprocessor_23)))) (store .cse0 c_ULTIMATE.start_main_~list~0.base (store (select .cse0 c_ULTIMATE.start_main_~list~0.base) (bvadd (_ bv8 32) c_ULTIMATE.start_main_~list~0.offset) v_DerPreprocessor_24))) c_ULTIMATE.start_main_~m~0.base) c_ULTIMATE.start_main_~m~0.offset) (_ bv100 32)))) is different from false [2021-10-16 03:17:09,049 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-16 03:17:09,055 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 153 [2021-10-16 03:17:09,059 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-16 03:17:09,060 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 213 [2021-10-16 03:17:09,066 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-16 03:17:09,069 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 254 [2021-10-16 03:17:11,421 WARN L838 $PredicateComparison]: unable to prove that (forall ((ULTIMATE.start_main_~x~0 (_ BitVec 32)) (v_ULTIMATE.start_main_~n~0.offset_17 (_ BitVec 32)) (v_ULTIMATE.start_main_~n~0.offset_16 (_ BitVec 32)) (v_ULTIMATE.start_main_~n~0.base_17 (_ BitVec 32)) (v_ULTIMATE.start_main_~n~0.base_18 (_ BitVec 32)) (ULTIMATE.start_main_~list~0.offset (_ BitVec 32)) (v_ULTIMATE.start_main_~x~0_25 (_ BitVec 32)) (v_DerPreprocessor_24 (_ BitVec 32)) (v_DerPreprocessor_25 (_ BitVec 32)) (v_DerPreprocessor_22 (_ BitVec 32)) (v_DerPreprocessor_23 (_ BitVec 32)) (v_DerPreprocessor_26 (_ BitVec 32)) (v_DerPreprocessor_27 (_ BitVec 32))) (or (not (= (_ bv0 1) (bvneg (select (store |c_#valid| v_ULTIMATE.start_main_~n~0.base_18 (_ bv1 1)) v_ULTIMATE.start_main_~n~0.base_17)))) (not (= (_ bv0 1) (select |c_#valid| v_ULTIMATE.start_main_~n~0.base_18))) (bvslt (select (select (let ((.cse1 (bvadd (_ bv8 32) ULTIMATE.start_main_~list~0.offset))) (let ((.cse0 (let ((.cse2 (let ((.cse3 (store |c_#memory_int| v_ULTIMATE.start_main_~n~0.base_18 (store (store (store (select |c_#memory_int| v_ULTIMATE.start_main_~n~0.base_18) v_ULTIMATE.start_main_~n~0.offset_17 ULTIMATE.start_main_~x~0) (bvadd (_ bv4 32) v_ULTIMATE.start_main_~n~0.offset_17) v_DerPreprocessor_27) (bvadd (_ bv8 32) v_ULTIMATE.start_main_~n~0.offset_17) v_DerPreprocessor_26)))) (store .cse3 c_ULTIMATE.start_main_~list~0.base (store (select .cse3 c_ULTIMATE.start_main_~list~0.base) .cse1 v_DerPreprocessor_25))))) (store .cse2 v_ULTIMATE.start_main_~n~0.base_17 (store (store (store (select .cse2 v_ULTIMATE.start_main_~n~0.base_17) v_ULTIMATE.start_main_~n~0.offset_16 v_ULTIMATE.start_main_~x~0_25) (bvadd (_ bv4 32) v_ULTIMATE.start_main_~n~0.offset_16) v_DerPreprocessor_22) (bvadd (_ bv8 32) v_ULTIMATE.start_main_~n~0.offset_16) v_DerPreprocessor_23))))) (store .cse0 c_ULTIMATE.start_main_~list~0.base (store (select .cse0 c_ULTIMATE.start_main_~list~0.base) .cse1 v_DerPreprocessor_24)))) c_ULTIMATE.start_main_~m~0.base) c_ULTIMATE.start_main_~m~0.offset) (_ bv100 32)))) is different from false [2021-10-16 03:17:11,780 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 4 not checked. [2021-10-16 03:17:11,780 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [10157265] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-16 03:17:11,780 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 4 imperfect interpolant sequences. [2021-10-16 03:17:11,781 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6, 6] total 16 [2021-10-16 03:17:11,781 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1093221996] [2021-10-16 03:17:11,781 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2021-10-16 03:17:11,781 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-16 03:17:11,782 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-10-16 03:17:11,782 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=98, Unknown=4, NotChecked=92, Total=240 [2021-10-16 03:17:11,782 INFO L87 Difference]: Start difference. First operand 30 states and 40 transitions. Second operand has 16 states, 16 states have (on average 2.25) internal successors, (36), 16 states have internal predecessors, (36), 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) [2021-10-16 03:17:14,888 WARN L838 $PredicateComparison]: unable to prove that (and (not (= c_ULTIMATE.start_main_~list~0.base c_ULTIMATE.start_main_~m~0.base)) (exists ((ULTIMATE.start_main_~n~0.base (_ BitVec 32))) (and (not (= c_ULTIMATE.start_main_~m~0.base ULTIMATE.start_main_~n~0.base)) (= (_ bv0 1) (bvadd (bvneg (bvneg (select |c_#valid| ULTIMATE.start_main_~n~0.base))) (_ bv1 1))) (not (= c_ULTIMATE.start_main_~list~0.base ULTIMATE.start_main_~n~0.base)))) (forall ((ULTIMATE.start_main_~x~0 (_ BitVec 32)) (v_ULTIMATE.start_main_~n~0.base_13 (_ BitVec 32)) (v_DerPreprocessor_14 (_ BitVec 32)) (v_DerPreprocessor_15 (_ BitVec 32)) (v_DerPreprocessor_16 (_ BitVec 32))) (or (not (bvslt ULTIMATE.start_main_~x~0 (_ bv10 32))) (bvslt (select (select (let ((.cse0 (store |c_#memory_int| v_ULTIMATE.start_main_~n~0.base_13 (store (store (store (select |c_#memory_int| v_ULTIMATE.start_main_~n~0.base_13) (_ bv0 32) ULTIMATE.start_main_~x~0) (_ bv4 32) v_DerPreprocessor_16) (_ bv8 32) v_DerPreprocessor_15)))) (store .cse0 c_ULTIMATE.start_main_~list~0.base (store (select .cse0 c_ULTIMATE.start_main_~list~0.base) (bvadd (_ bv8 32) c_ULTIMATE.start_main_~list~0.offset) v_DerPreprocessor_14))) c_ULTIMATE.start_main_~m~0.base) c_ULTIMATE.start_main_~m~0.offset) (_ bv100 32)) (not (bvsgt ULTIMATE.start_main_~x~0 (_ bv0 32))))) (exists ((v_arrayElimCell_96 (_ BitVec 1))) (let ((.cse1 (bvneg v_arrayElimCell_96))) (and (= (_ bv0 1) (bvadd (select |c_#valid| c_ULTIMATE.start_main_~list~0.base) .cse1)) (= (_ bv0 1) (bvadd (_ bv1 1) (bvneg .cse1)))))) (= (_ bv0 32) (select (select |c_#memory_int| c_ULTIMATE.start_main_~m~0.base) c_ULTIMATE.start_main_~m~0.offset)) (forall ((ULTIMATE.start_main_~x~0 (_ BitVec 32)) (v_DerPreprocessor_24 (_ BitVec 32)) (v_DerPreprocessor_22 (_ BitVec 32)) (v_ULTIMATE.start_main_~n~0.offset_16 (_ BitVec 32)) (v_DerPreprocessor_23 (_ BitVec 32)) (v_ULTIMATE.start_main_~n~0.base_17 (_ BitVec 32))) (or (not (= (_ bv0 1) (select |c_#valid| v_ULTIMATE.start_main_~n~0.base_17))) (bvslt (select (select (let ((.cse2 (store |c_#memory_int| v_ULTIMATE.start_main_~n~0.base_17 (store (store (store (select |c_#memory_int| v_ULTIMATE.start_main_~n~0.base_17) v_ULTIMATE.start_main_~n~0.offset_16 ULTIMATE.start_main_~x~0) (bvadd (_ bv4 32) v_ULTIMATE.start_main_~n~0.offset_16) v_DerPreprocessor_22) (bvadd (_ bv8 32) v_ULTIMATE.start_main_~n~0.offset_16) v_DerPreprocessor_23)))) (store .cse2 c_ULTIMATE.start_main_~list~0.base (store (select .cse2 c_ULTIMATE.start_main_~list~0.base) (bvadd (_ bv8 32) c_ULTIMATE.start_main_~list~0.offset) v_DerPreprocessor_24))) c_ULTIMATE.start_main_~m~0.base) c_ULTIMATE.start_main_~m~0.offset) (_ bv100 32)))) (= (_ bv0 1) (bvadd (bvneg (bvneg (bvneg (select |c_#valid| c_ULTIMATE.start_main_~m~0.base)))) (_ bv1 1))) (= c_ULTIMATE.start_main_~m~0.offset (_ bv0 32))) is different from false [2021-10-16 03:17:15,471 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 03:17:15,471 INFO L93 Difference]: Finished difference Result 51 states and 68 transitions. [2021-10-16 03:17:15,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-16 03:17:15,472 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.25) internal successors, (36), 16 states have internal predecessors, (36), 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 13 [2021-10-16 03:17:15,472 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 03:17:15,473 INFO L225 Difference]: With dead ends: 51 [2021-10-16 03:17:15,473 INFO L226 Difference]: Without dead ends: 47 [2021-10-16 03:17:15,473 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 35 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 5 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 10595.1ms TimeCoverageRelationStatistics Valid=64, Invalid=133, Unknown=5, NotChecked=140, Total=342 [2021-10-16 03:17:15,474 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2021-10-16 03:17:15,483 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 35. [2021-10-16 03:17:15,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35 states, 34 states have (on average 1.4411764705882353) internal successors, (49), 34 states have internal predecessors, (49), 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) [2021-10-16 03:17:15,484 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 49 transitions. [2021-10-16 03:17:15,485 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 49 transitions. Word has length 13 [2021-10-16 03:17:15,485 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 03:17:15,485 INFO L470 AbstractCegarLoop]: Abstraction has 35 states and 49 transitions. [2021-10-16 03:17:15,485 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.25) internal successors, (36), 16 states have internal predecessors, (36), 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) [2021-10-16 03:17:15,485 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 49 transitions. [2021-10-16 03:17:15,486 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-10-16 03:17:15,486 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 03:17:15,486 INFO L512 BasicCegarLoop]: trace histogram [3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-16 03:17:15,502 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98e4db16-f799-448f-91f7-866e6aa5cc62/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2021-10-16 03:17:15,719 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98e4db16-f799-448f-91f7-866e6aa5cc62/bin/utaipan-mTDlp9Zugs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2021-10-16 03:17:15,897 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98e4db16-f799-448f-91f7-866e6aa5cc62/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98e4db16-f799-448f-91f7-866e6aa5cc62/bin/utaipan-mTDlp9Zugs/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-16 03:17:15,898 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-16 03:17:15,898 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 03:17:15,898 INFO L82 PathProgramCache]: Analyzing trace with hash 163302606, now seen corresponding path program 1 times [2021-10-16 03:17:15,898 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-16 03:17:15,898 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1372644410] [2021-10-16 03:17:15,899 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 03:17:15,899 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-16 03:17:15,899 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98e4db16-f799-448f-91f7-866e6aa5cc62/bin/utaipan-mTDlp9Zugs/mathsat [2021-10-16 03:17:15,900 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98e4db16-f799-448f-91f7-866e6aa5cc62/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-16 03:17:15,906 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98e4db16-f799-448f-91f7-866e6aa5cc62/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2021-10-16 03:17:16,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 03:17:16,231 INFO L263 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 16 conjunts are in the unsatisfiable core [2021-10-16 03:17:16,234 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 03:17:17,829 INFO L354 Elim1Store]: treesize reduction 75, result has 29.9 percent of original size [2021-10-16 03:17:17,829 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 58 treesize of output 51 [2021-10-16 03:17:17,896 INFO L354 Elim1Store]: treesize reduction 62, result has 28.7 percent of original size [2021-10-16 03:17:17,896 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 51 treesize of output 48 [2021-10-16 03:17:18,025 INFO L354 Elim1Store]: treesize reduction 12, result has 40.0 percent of original size [2021-10-16 03:17:18,026 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 19 treesize of output 21 [2021-10-16 03:17:18,368 INFO L354 Elim1Store]: treesize reduction 158, result has 12.2 percent of original size [2021-10-16 03:17:18,368 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 105 treesize of output 96 [2021-10-16 03:17:18,374 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-16 03:17:18,376 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 84 [2021-10-16 03:17:19,176 INFO L354 Elim1Store]: treesize reduction 120, result has 20.0 percent of original size [2021-10-16 03:17:19,177 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 84 treesize of output 66 [2021-10-16 03:17:19,236 INFO L354 Elim1Store]: treesize reduction 30, result has 45.5 percent of original size [2021-10-16 03:17:19,236 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 51 treesize of output 68 [2021-10-16 03:17:19,752 INFO L354 Elim1Store]: treesize reduction 92, result has 14.0 percent of original size [2021-10-16 03:17:19,753 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 2 case distinctions, treesize of input 137 treesize of output 125 [2021-10-16 03:17:19,762 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-16 03:17:19,764 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 116 [2021-10-16 03:17:19,858 INFO L354 Elim1Store]: treesize reduction 110, result has 13.4 percent of original size [2021-10-16 03:17:19,858 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 2 case distinctions, treesize of input 116 treesize of output 89 [2021-10-16 03:17:19,913 INFO L354 Elim1Store]: treesize reduction 36, result has 26.5 percent of original size [2021-10-16 03:17:19,914 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 77 treesize of output 81 [2021-10-16 03:17:19,924 INFO L883 QuantifierPusher]: Run 10 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-10-16 03:17:19,956 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 15 treesize of output 7 [2021-10-16 03:17:19,984 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-10-16 03:17:19,984 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 03:17:20,062 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-16 03:17:20,063 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 62 [2021-10-16 03:17:20,066 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-16 03:17:20,067 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 70 [2021-10-16 03:17:20,070 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-16 03:17:20,071 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-10-16 03:17:22,123 WARN L838 $PredicateComparison]: unable to prove that (forall ((ULTIMATE.start_main_~x~0 (_ BitVec 32)) (v_DerPreprocessor_31 (_ BitVec 32)) (v_DerPreprocessor_32 (_ BitVec 32)) (v_ULTIMATE.start_main_~n~0.base_21 (_ BitVec 32)) (v_DerPreprocessor_30 (_ BitVec 32)) (v_ULTIMATE.start_main_~n~0.offset_19 (_ BitVec 32))) (or (not (= (_ bv0 1) (select |c_#valid| v_ULTIMATE.start_main_~n~0.base_21))) (bvslt (select (select (let ((.cse0 (store |c_#memory_int| v_ULTIMATE.start_main_~n~0.base_21 (store (store (store (select |c_#memory_int| v_ULTIMATE.start_main_~n~0.base_21) v_ULTIMATE.start_main_~n~0.offset_19 ULTIMATE.start_main_~x~0) (bvadd (_ bv4 32) v_ULTIMATE.start_main_~n~0.offset_19) v_DerPreprocessor_30) (bvadd (_ bv8 32) v_ULTIMATE.start_main_~n~0.offset_19) v_DerPreprocessor_31)))) (store .cse0 c_ULTIMATE.start_main_~list~0.base (store (select .cse0 c_ULTIMATE.start_main_~list~0.base) (bvadd (_ bv8 32) c_ULTIMATE.start_main_~list~0.offset) v_DerPreprocessor_32))) c_ULTIMATE.start_main_~m~0.base) c_ULTIMATE.start_main_~m~0.offset) (_ bv100 32)))) is different from false [2021-10-16 03:17:22,272 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-16 03:17:22,273 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 152 [2021-10-16 03:17:22,279 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-16 03:17:22,280 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 212 [2021-10-16 03:17:22,283 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-16 03:17:22,283 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 253 [2021-10-16 03:17:24,584 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ULTIMATE.start_main_~n~0.offset_20 (_ BitVec 32)) (ULTIMATE.start_main_~x~0 (_ BitVec 32)) (v_ULTIMATE.start_main_~n~0.base_22 (_ BitVec 32)) (v_ULTIMATE.start_main_~n~0.base_21 (_ BitVec 32)) (v_ULTIMATE.start_main_~x~0_30 (_ BitVec 32)) (v_ULTIMATE.start_main_~n~0.offset_19 (_ BitVec 32)) (ULTIMATE.start_main_~list~0.offset (_ BitVec 32)) (v_DerPreprocessor_31 (_ BitVec 32)) (v_DerPreprocessor_32 (_ BitVec 32)) (v_DerPreprocessor_30 (_ BitVec 32)) (v_DerPreprocessor_35 (_ BitVec 32)) (v_DerPreprocessor_33 (_ BitVec 32)) (v_DerPreprocessor_34 (_ BitVec 32))) (or (not (= (_ bv0 1) (select |c_#valid| v_ULTIMATE.start_main_~n~0.base_22))) (bvslt (select (select (let ((.cse1 (bvadd (_ bv8 32) ULTIMATE.start_main_~list~0.offset))) (let ((.cse0 (let ((.cse2 (let ((.cse3 (store |c_#memory_int| v_ULTIMATE.start_main_~n~0.base_22 (store (store (store (select |c_#memory_int| v_ULTIMATE.start_main_~n~0.base_22) v_ULTIMATE.start_main_~n~0.offset_20 ULTIMATE.start_main_~x~0) (bvadd (_ bv4 32) v_ULTIMATE.start_main_~n~0.offset_20) v_DerPreprocessor_35) (bvadd (_ bv8 32) v_ULTIMATE.start_main_~n~0.offset_20) v_DerPreprocessor_34)))) (store .cse3 c_ULTIMATE.start_main_~list~0.base (store (select .cse3 c_ULTIMATE.start_main_~list~0.base) .cse1 v_DerPreprocessor_33))))) (store .cse2 v_ULTIMATE.start_main_~n~0.base_21 (store (store (store (select .cse2 v_ULTIMATE.start_main_~n~0.base_21) v_ULTIMATE.start_main_~n~0.offset_19 v_ULTIMATE.start_main_~x~0_30) (bvadd (_ bv4 32) v_ULTIMATE.start_main_~n~0.offset_19) v_DerPreprocessor_30) (bvadd (_ bv8 32) v_ULTIMATE.start_main_~n~0.offset_19) v_DerPreprocessor_31))))) (store .cse0 c_ULTIMATE.start_main_~list~0.base (store (select .cse0 c_ULTIMATE.start_main_~list~0.base) .cse1 v_DerPreprocessor_32)))) c_ULTIMATE.start_main_~m~0.base) c_ULTIMATE.start_main_~m~0.offset) (_ bv100 32)) (not (= (_ bv0 1) (select (store |c_#valid| v_ULTIMATE.start_main_~n~0.base_22 (_ bv1 1)) v_ULTIMATE.start_main_~n~0.base_21))))) is different from false [2021-10-16 03:17:24,912 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 7 not checked. [2021-10-16 03:17:24,912 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-16 03:17:24,912 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1372644410] [2021-10-16 03:17:24,912 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1372644410] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-16 03:17:24,913 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1803221999] [2021-10-16 03:17:24,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 03:17:24,913 INFO L170 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-10-16 03:17:24,913 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98e4db16-f799-448f-91f7-866e6aa5cc62/bin/utaipan-mTDlp9Zugs/cvc4 [2021-10-16 03:17:24,923 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98e4db16-f799-448f-91f7-866e6aa5cc62/bin/utaipan-mTDlp9Zugs/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-10-16 03:17:24,924 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98e4db16-f799-448f-91f7-866e6aa5cc62/bin/utaipan-mTDlp9Zugs/cvc4 --incremental --print-success --lang smt (14)] Waiting until timeout for monitored process [2021-10-16 03:17:25,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 03:17:25,351 INFO L263 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 16 conjunts are in the unsatisfiable core [2021-10-16 03:17:25,353 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 03:17:26,857 INFO L354 Elim1Store]: treesize reduction 75, result has 29.9 percent of original size [2021-10-16 03:17:26,857 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 58 treesize of output 51 [2021-10-16 03:17:26,921 INFO L354 Elim1Store]: treesize reduction 62, result has 28.7 percent of original size [2021-10-16 03:17:26,922 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 51 treesize of output 48 [2021-10-16 03:17:27,050 INFO L354 Elim1Store]: treesize reduction 12, result has 40.0 percent of original size [2021-10-16 03:17:27,050 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 19 treesize of output 21 [2021-10-16 03:17:27,296 INFO L354 Elim1Store]: treesize reduction 158, result has 12.2 percent of original size [2021-10-16 03:17:27,297 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 103 treesize of output 94 [2021-10-16 03:17:27,307 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-16 03:17:27,308 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 82 [2021-10-16 03:17:28,084 INFO L354 Elim1Store]: treesize reduction 120, result has 20.0 percent of original size [2021-10-16 03:17:28,084 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 82 treesize of output 64 [2021-10-16 03:17:28,143 INFO L354 Elim1Store]: treesize reduction 30, result has 45.5 percent of original size [2021-10-16 03:17:28,143 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 49 treesize of output 66 [2021-10-16 03:17:28,583 INFO L354 Elim1Store]: treesize reduction 92, result has 14.0 percent of original size [2021-10-16 03:17:28,583 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 2 case distinctions, treesize of input 139 treesize of output 127 [2021-10-16 03:17:28,589 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-16 03:17:28,590 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 118 [2021-10-16 03:17:28,659 INFO L354 Elim1Store]: treesize reduction 110, result has 13.4 percent of original size [2021-10-16 03:17:28,661 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 2 case distinctions, treesize of input 118 treesize of output 91 [2021-10-16 03:17:28,703 INFO L354 Elim1Store]: treesize reduction 36, result has 26.5 percent of original size [2021-10-16 03:17:28,703 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 79 treesize of output 83 [2021-10-16 03:17:28,710 INFO L883 QuantifierPusher]: Run 10 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-10-16 03:17:28,727 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 15 treesize of output 7 [2021-10-16 03:17:28,738 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-10-16 03:17:28,738 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 03:17:28,789 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-16 03:17:28,790 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 62 [2021-10-16 03:17:28,792 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-16 03:17:28,793 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 70 [2021-10-16 03:17:28,796 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-16 03:17:28,797 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-10-16 03:17:30,855 WARN L838 $PredicateComparison]: unable to prove that (forall ((ULTIMATE.start_main_~x~0 (_ BitVec 32)) (v_ULTIMATE.start_main_~n~0.offset_22 (_ BitVec 32)) (v_DerPreprocessor_40 (_ BitVec 32)) (v_ULTIMATE.start_main_~n~0.base_25 (_ BitVec 32)) (v_DerPreprocessor_39 (_ BitVec 32)) (v_DerPreprocessor_38 (_ BitVec 32))) (or (not (= (_ bv0 1) (select |c_#valid| v_ULTIMATE.start_main_~n~0.base_25))) (bvslt (select (select (let ((.cse0 (store |c_#memory_int| v_ULTIMATE.start_main_~n~0.base_25 (store (store (store (select |c_#memory_int| v_ULTIMATE.start_main_~n~0.base_25) v_ULTIMATE.start_main_~n~0.offset_22 ULTIMATE.start_main_~x~0) (bvadd (_ bv4 32) v_ULTIMATE.start_main_~n~0.offset_22) v_DerPreprocessor_38) (bvadd (_ bv8 32) v_ULTIMATE.start_main_~n~0.offset_22) v_DerPreprocessor_39)))) (store .cse0 c_ULTIMATE.start_main_~list~0.base (store (select .cse0 c_ULTIMATE.start_main_~list~0.base) (bvadd (_ bv8 32) c_ULTIMATE.start_main_~list~0.offset) v_DerPreprocessor_40))) c_ULTIMATE.start_main_~m~0.base) c_ULTIMATE.start_main_~m~0.offset) (_ bv100 32)))) is different from false [2021-10-16 03:17:31,010 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-16 03:17:31,011 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 153 [2021-10-16 03:17:31,016 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-16 03:17:31,018 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 213 [2021-10-16 03:17:31,022 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-16 03:17:31,029 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 254 [2021-10-16 03:17:33,329 WARN L838 $PredicateComparison]: unable to prove that (forall ((ULTIMATE.start_main_~x~0 (_ BitVec 32)) (v_ULTIMATE.start_main_~n~0.offset_22 (_ BitVec 32)) (v_ULTIMATE.start_main_~n~0.offset_23 (_ BitVec 32)) (v_ULTIMATE.start_main_~n~0.base_26 (_ BitVec 32)) (v_ULTIMATE.start_main_~n~0.base_25 (_ BitVec 32)) (ULTIMATE.start_main_~list~0.offset (_ BitVec 32)) (v_ULTIMATE.start_main_~x~0_35 (_ BitVec 32)) (v_DerPreprocessor_42 (_ BitVec 32)) (v_DerPreprocessor_43 (_ BitVec 32)) (v_DerPreprocessor_40 (_ BitVec 32)) (v_DerPreprocessor_41 (_ BitVec 32)) (v_DerPreprocessor_39 (_ BitVec 32)) (v_DerPreprocessor_38 (_ BitVec 32))) (or (not (= (_ bv0 1) (select |c_#valid| v_ULTIMATE.start_main_~n~0.base_26))) (not (= (_ bv0 1) (bvneg (select (store |c_#valid| v_ULTIMATE.start_main_~n~0.base_26 (_ bv1 1)) v_ULTIMATE.start_main_~n~0.base_25)))) (bvslt (select (select (let ((.cse1 (bvadd (_ bv8 32) ULTIMATE.start_main_~list~0.offset))) (let ((.cse0 (let ((.cse2 (let ((.cse3 (store |c_#memory_int| v_ULTIMATE.start_main_~n~0.base_26 (store (store (store (select |c_#memory_int| v_ULTIMATE.start_main_~n~0.base_26) v_ULTIMATE.start_main_~n~0.offset_23 ULTIMATE.start_main_~x~0) (bvadd (_ bv4 32) v_ULTIMATE.start_main_~n~0.offset_23) v_DerPreprocessor_43) (bvadd (_ bv8 32) v_ULTIMATE.start_main_~n~0.offset_23) v_DerPreprocessor_42)))) (store .cse3 c_ULTIMATE.start_main_~list~0.base (store (select .cse3 c_ULTIMATE.start_main_~list~0.base) .cse1 v_DerPreprocessor_41))))) (store .cse2 v_ULTIMATE.start_main_~n~0.base_25 (store (store (store (select .cse2 v_ULTIMATE.start_main_~n~0.base_25) v_ULTIMATE.start_main_~n~0.offset_22 v_ULTIMATE.start_main_~x~0_35) (bvadd (_ bv4 32) v_ULTIMATE.start_main_~n~0.offset_22) v_DerPreprocessor_38) (bvadd (_ bv8 32) v_ULTIMATE.start_main_~n~0.offset_22) v_DerPreprocessor_39))))) (store .cse0 c_ULTIMATE.start_main_~list~0.base (store (select .cse0 c_ULTIMATE.start_main_~list~0.base) .cse1 v_DerPreprocessor_40)))) c_ULTIMATE.start_main_~m~0.base) c_ULTIMATE.start_main_~m~0.offset) (_ bv100 32)))) is different from false [2021-10-16 03:17:33,745 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 7 not checked. [2021-10-16 03:17:33,745 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1803221999] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-16 03:17:33,745 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [59789066] [2021-10-16 03:17:33,745 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 03:17:33,746 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-16 03:17:33,746 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98e4db16-f799-448f-91f7-866e6aa5cc62/bin/utaipan-mTDlp9Zugs/z3 [2021-10-16 03:17:33,761 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98e4db16-f799-448f-91f7-866e6aa5cc62/bin/utaipan-mTDlp9Zugs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-16 03:17:33,763 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98e4db16-f799-448f-91f7-866e6aa5cc62/bin/utaipan-mTDlp9Zugs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2021-10-16 03:17:34,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 03:17:34,046 INFO L263 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 16 conjunts are in the unsatisfiable core [2021-10-16 03:17:34,047 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 03:17:34,723 INFO L354 Elim1Store]: treesize reduction 75, result has 29.9 percent of original size [2021-10-16 03:17:34,723 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 58 treesize of output 51 [2021-10-16 03:17:34,792 INFO L354 Elim1Store]: treesize reduction 62, result has 28.7 percent of original size [2021-10-16 03:17:34,793 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 51 treesize of output 48 [2021-10-16 03:17:34,924 INFO L354 Elim1Store]: treesize reduction 12, result has 40.0 percent of original size [2021-10-16 03:17:34,924 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 19 treesize of output 21 [2021-10-16 03:17:35,183 INFO L354 Elim1Store]: treesize reduction 158, result has 12.2 percent of original size [2021-10-16 03:17:35,184 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 104 treesize of output 95 [2021-10-16 03:17:35,188 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-16 03:17:35,189 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 83 [2021-10-16 03:17:37,073 INFO L354 Elim1Store]: treesize reduction 120, result has 20.0 percent of original size [2021-10-16 03:17:37,073 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 83 treesize of output 65 [2021-10-16 03:17:37,141 INFO L354 Elim1Store]: treesize reduction 30, result has 45.5 percent of original size [2021-10-16 03:17:37,141 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 50 treesize of output 67 [2021-10-16 03:17:37,693 INFO L354 Elim1Store]: treesize reduction 92, result has 14.0 percent of original size [2021-10-16 03:17:37,693 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 2 case distinctions, treesize of input 136 treesize of output 124 [2021-10-16 03:17:37,699 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-16 03:17:37,700 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 115 [2021-10-16 03:17:37,765 INFO L354 Elim1Store]: treesize reduction 110, result has 13.4 percent of original size [2021-10-16 03:17:37,765 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 2 case distinctions, treesize of input 115 treesize of output 88 [2021-10-16 03:17:37,832 INFO L354 Elim1Store]: treesize reduction 36, result has 26.5 percent of original size [2021-10-16 03:17:37,832 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 76 treesize of output 80 [2021-10-16 03:17:37,839 INFO L883 QuantifierPusher]: Run 10 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-10-16 03:17:37,857 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 15 treesize of output 7 [2021-10-16 03:17:37,870 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-10-16 03:17:37,870 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 03:17:37,913 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-16 03:17:37,914 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 62 [2021-10-16 03:17:37,918 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-16 03:17:37,919 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 70 [2021-10-16 03:17:37,922 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-16 03:17:37,923 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-10-16 03:17:39,975 WARN L838 $PredicateComparison]: unable to prove that (forall ((ULTIMATE.start_main_~x~0 (_ BitVec 32)) (v_DerPreprocessor_46 (_ BitVec 32)) (v_ULTIMATE.start_main_~n~0.offset_25 (_ BitVec 32)) (v_DerPreprocessor_47 (_ BitVec 32)) (v_DerPreprocessor_48 (_ BitVec 32)) (v_ULTIMATE.start_main_~n~0.base_29 (_ BitVec 32))) (or (not (= (_ bv0 1) (select |c_#valid| v_ULTIMATE.start_main_~n~0.base_29))) (bvslt (select (select (let ((.cse0 (store |c_#memory_int| v_ULTIMATE.start_main_~n~0.base_29 (store (store (store (select |c_#memory_int| v_ULTIMATE.start_main_~n~0.base_29) v_ULTIMATE.start_main_~n~0.offset_25 ULTIMATE.start_main_~x~0) (bvadd (_ bv4 32) v_ULTIMATE.start_main_~n~0.offset_25) v_DerPreprocessor_46) (bvadd (_ bv8 32) v_ULTIMATE.start_main_~n~0.offset_25) v_DerPreprocessor_47)))) (store .cse0 c_ULTIMATE.start_main_~list~0.base (store (select .cse0 c_ULTIMATE.start_main_~list~0.base) (bvadd (_ bv8 32) c_ULTIMATE.start_main_~list~0.offset) v_DerPreprocessor_48))) c_ULTIMATE.start_main_~m~0.base) c_ULTIMATE.start_main_~m~0.offset) (_ bv100 32)))) is different from false [2021-10-16 03:17:40,159 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-16 03:17:40,160 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 152 [2021-10-16 03:17:40,164 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-16 03:17:40,166 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 212 [2021-10-16 03:17:40,169 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-16 03:17:40,171 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 253 [2021-10-16 03:17:42,637 WARN L838 $PredicateComparison]: unable to prove that (forall ((ULTIMATE.start_main_~x~0 (_ BitVec 32)) (v_ULTIMATE.start_main_~n~0.base_30 (_ BitVec 32)) (v_ULTIMATE.start_main_~n~0.offset_26 (_ BitVec 32)) (v_ULTIMATE.start_main_~n~0.offset_25 (_ BitVec 32)) (v_ULTIMATE.start_main_~x~0_40 (_ BitVec 32)) (ULTIMATE.start_main_~list~0.offset (_ BitVec 32)) (v_ULTIMATE.start_main_~n~0.base_29 (_ BitVec 32)) (v_DerPreprocessor_50 (_ BitVec 32)) (v_DerPreprocessor_51 (_ BitVec 32)) (v_DerPreprocessor_46 (_ BitVec 32)) (v_DerPreprocessor_47 (_ BitVec 32)) (v_DerPreprocessor_48 (_ BitVec 32)) (v_DerPreprocessor_49 (_ BitVec 32))) (or (bvslt (select (select (let ((.cse1 (bvadd (_ bv8 32) ULTIMATE.start_main_~list~0.offset))) (let ((.cse0 (let ((.cse2 (let ((.cse3 (store |c_#memory_int| v_ULTIMATE.start_main_~n~0.base_30 (store (store (store (select |c_#memory_int| v_ULTIMATE.start_main_~n~0.base_30) v_ULTIMATE.start_main_~n~0.offset_26 ULTIMATE.start_main_~x~0) (bvadd (_ bv4 32) v_ULTIMATE.start_main_~n~0.offset_26) v_DerPreprocessor_51) (bvadd (_ bv8 32) v_ULTIMATE.start_main_~n~0.offset_26) v_DerPreprocessor_50)))) (store .cse3 c_ULTIMATE.start_main_~list~0.base (store (select .cse3 c_ULTIMATE.start_main_~list~0.base) .cse1 v_DerPreprocessor_49))))) (store .cse2 v_ULTIMATE.start_main_~n~0.base_29 (store (store (store (select .cse2 v_ULTIMATE.start_main_~n~0.base_29) v_ULTIMATE.start_main_~n~0.offset_25 v_ULTIMATE.start_main_~x~0_40) (bvadd (_ bv4 32) v_ULTIMATE.start_main_~n~0.offset_25) v_DerPreprocessor_46) (bvadd (_ bv8 32) v_ULTIMATE.start_main_~n~0.offset_25) v_DerPreprocessor_47))))) (store .cse0 c_ULTIMATE.start_main_~list~0.base (store (select .cse0 c_ULTIMATE.start_main_~list~0.base) .cse1 v_DerPreprocessor_48)))) c_ULTIMATE.start_main_~m~0.base) c_ULTIMATE.start_main_~m~0.offset) (_ bv100 32)) (not (= (_ bv0 1) (select (store |c_#valid| v_ULTIMATE.start_main_~n~0.base_30 (_ bv1 1)) v_ULTIMATE.start_main_~n~0.base_29))) (not (= (_ bv0 1) (select |c_#valid| v_ULTIMATE.start_main_~n~0.base_30))))) is different from false [2021-10-16 03:17:42,993 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 7 not checked. [2021-10-16 03:17:42,993 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [59789066] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-16 03:17:42,993 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 6 imperfect interpolant sequences. [2021-10-16 03:17:42,994 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6, 6, 6, 6] total 14 [2021-10-16 03:17:42,994 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [734734093] [2021-10-16 03:17:42,994 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-10-16 03:17:42,995 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-16 03:17:42,995 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-10-16 03:17:42,995 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=43, Unknown=6, NotChecked=102, Total=182 [2021-10-16 03:17:42,996 INFO L87 Difference]: Start difference. First operand 35 states and 49 transitions. Second operand has 14 states, 14 states have (on average 2.5714285714285716) internal successors, (36), 14 states have internal predecessors, (36), 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) [2021-10-16 03:17:55,332 WARN L207 SmtUtils]: Spent 6.21 s on a formula simplification. DAG size of input: 126 DAG size of output: 51 [2021-10-16 03:17:56,789 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 03:17:56,789 INFO L93 Difference]: Finished difference Result 53 states and 75 transitions. [2021-10-16 03:17:56,789 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-16 03:17:56,789 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 2.5714285714285716) internal successors, (36), 14 states have internal predecessors, (36), 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 15 [2021-10-16 03:17:56,790 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 03:17:56,790 INFO L225 Difference]: With dead ends: 53 [2021-10-16 03:17:56,791 INFO L226 Difference]: Without dead ends: 49 [2021-10-16 03:17:56,791 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 61 SyntacticMatches, 11 SemanticMatches, 15 ConstructedPredicates, 6 IntricatePredicates, 2 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 23588.0ms TimeCoverageRelationStatistics Valid=49, Invalid=78, Unknown=7, NotChecked=138, Total=272 [2021-10-16 03:17:56,791 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2021-10-16 03:17:56,797 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 30. [2021-10-16 03:17:56,798 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30 states, 29 states have (on average 1.3793103448275863) internal successors, (40), 29 states have internal predecessors, (40), 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) [2021-10-16 03:17:56,799 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 40 transitions. [2021-10-16 03:17:56,799 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 40 transitions. Word has length 15 [2021-10-16 03:17:56,799 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 03:17:56,799 INFO L470 AbstractCegarLoop]: Abstraction has 30 states and 40 transitions. [2021-10-16 03:17:56,800 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 2.5714285714285716) internal successors, (36), 14 states have internal predecessors, (36), 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) [2021-10-16 03:17:56,800 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 40 transitions. [2021-10-16 03:17:56,800 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-10-16 03:17:56,801 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 03:17:56,801 INFO L512 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-16 03:17:56,810 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98e4db16-f799-448f-91f7-866e6aa5cc62/bin/utaipan-mTDlp9Zugs/cvc4 --incremental --print-success --lang smt (14)] Forceful destruction successful, exit code 0 [2021-10-16 03:17:57,031 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98e4db16-f799-448f-91f7-866e6aa5cc62/bin/utaipan-mTDlp9Zugs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2021-10-16 03:17:57,222 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98e4db16-f799-448f-91f7-866e6aa5cc62/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2021-10-16 03:17:57,411 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98e4db16-f799-448f-91f7-866e6aa5cc62/bin/utaipan-mTDlp9Zugs/cvc4 --incremental --print-success --lang smt,15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98e4db16-f799-448f-91f7-866e6aa5cc62/bin/utaipan-mTDlp9Zugs/z3 -smt2 -in SMTLIB2_COMPLIANT=true,13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98e4db16-f799-448f-91f7-866e6aa5cc62/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 [2021-10-16 03:17:57,411 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-16 03:17:57,411 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 03:17:57,411 INFO L82 PathProgramCache]: Analyzing trace with hash 1423314055, now seen corresponding path program 2 times [2021-10-16 03:17:57,412 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-16 03:17:57,412 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [877411251] [2021-10-16 03:17:57,412 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-16 03:17:57,412 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-16 03:17:57,412 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98e4db16-f799-448f-91f7-866e6aa5cc62/bin/utaipan-mTDlp9Zugs/mathsat [2021-10-16 03:17:57,413 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98e4db16-f799-448f-91f7-866e6aa5cc62/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-16 03:17:57,414 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98e4db16-f799-448f-91f7-866e6aa5cc62/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2021-10-16 03:17:57,747 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-10-16 03:17:57,747 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-16 03:17:57,753 INFO L263 TraceCheckSpWp]: Trace formula consists of 70 conjuncts, 26 conjunts are in the unsatisfiable core [2021-10-16 03:17:57,757 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 03:17:57,796 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 03:17:57,825 INFO L354 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2021-10-16 03:17:57,826 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 58 treesize of output 38 [2021-10-16 03:17:57,831 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 03:17:57,834 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-10-16 03:17:57,834 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 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 38 treesize of output 25 [2021-10-16 03:17:57,855 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 12 treesize of output 10 [2021-10-16 03:17:57,868 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 03:17:57,868 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 19 [2021-10-16 03:17:57,890 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 03:17:57,890 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 19 [2021-10-16 03:17:58,285 INFO L173 IndexEqualityManager]: detected equality via solver [2021-10-16 03:17:58,287 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 03:17:58,405 INFO L354 Elim1Store]: treesize reduction 147, result has 14.0 percent of original size [2021-10-16 03:17:58,405 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 184 treesize of output 144 [2021-10-16 03:17:58,501 INFO L354 Elim1Store]: treesize reduction 245, result has 6.8 percent of original size [2021-10-16 03:17:58,501 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 9 case distinctions, treesize of input 139 treesize of output 118 [2021-10-16 03:17:58,507 INFO L173 IndexEqualityManager]: detected equality via solver [2021-10-16 03:17:58,509 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 03:17:58,567 INFO L354 Elim1Store]: treesize reduction 147, result has 14.0 percent of original size [2021-10-16 03:17:58,567 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 112 treesize of output 102 [2021-10-16 03:18:00,972 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-10-16 03:18:00,972 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 100 treesize of output 76 [2021-10-16 03:18:00,994 INFO L354 Elim1Store]: treesize reduction 51, result has 12.1 percent of original size [2021-10-16 03:18:00,995 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 70 treesize of output 45 [2021-10-16 03:18:01,004 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-10-16 03:18:01,005 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 39 treesize of output 27 [2021-10-16 03:18:01,162 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 03:18:01,162 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 03:18:01,665 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-16 03:18:01,666 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1153 [2021-10-16 03:18:01,668 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-16 03:18:01,669 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1523 [2021-10-16 03:18:04,212 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 03:18:04,212 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-16 03:18:04,212 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [877411251] [2021-10-16 03:18:04,213 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [877411251] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-16 03:18:04,213 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1032083858] [2021-10-16 03:18:04,213 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-16 03:18:04,213 INFO L170 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-10-16 03:18:04,213 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98e4db16-f799-448f-91f7-866e6aa5cc62/bin/utaipan-mTDlp9Zugs/cvc4 [2021-10-16 03:18:04,215 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98e4db16-f799-448f-91f7-866e6aa5cc62/bin/utaipan-mTDlp9Zugs/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-10-16 03:18:04,215 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98e4db16-f799-448f-91f7-866e6aa5cc62/bin/utaipan-mTDlp9Zugs/cvc4 --incremental --print-success --lang smt (17)] Waiting until timeout for monitored process [2021-10-16 03:18:04,639 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-16 03:18:04,640 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [554439613] [2021-10-16 03:18:04,640 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-16 03:18:04,640 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-16 03:18:04,640 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98e4db16-f799-448f-91f7-866e6aa5cc62/bin/utaipan-mTDlp9Zugs/z3 [2021-10-16 03:18:04,641 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98e4db16-f799-448f-91f7-866e6aa5cc62/bin/utaipan-mTDlp9Zugs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-16 03:18:04,649 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98e4db16-f799-448f-91f7-866e6aa5cc62/bin/utaipan-mTDlp9Zugs/cvc4 --incremental --print-success --lang smt (17)] Forceful destruction successful, exit code 1 [2021-10-16 03:18:04,652 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98e4db16-f799-448f-91f7-866e6aa5cc62/bin/utaipan-mTDlp9Zugs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2021-10-16 03:18:05,069 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-10-16 03:18:05,069 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-16 03:18:05,072 INFO L263 TraceCheckSpWp]: Trace formula consists of 70 conjuncts, 20 conjunts are in the unsatisfiable core [2021-10-16 03:18:05,078 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 03:18:05,107 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 03:18:05,108 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 19 [2021-10-16 03:18:05,130 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 03:18:05,222 INFO L354 Elim1Store]: treesize reduction 50, result has 32.4 percent of original size [2021-10-16 03:18:05,223 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 58 treesize of output 51 [2021-10-16 03:18:05,237 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 03:18:05,283 INFO L354 Elim1Store]: treesize reduction 37, result has 31.5 percent of original size [2021-10-16 03:18:05,284 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 51 treesize of output 48 [2021-10-16 03:18:05,334 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 10 treesize of output 8 [2021-10-16 03:18:05,352 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 03:18:05,357 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 19 [2021-10-16 03:18:05,867 INFO L173 IndexEqualityManager]: detected equality via solver [2021-10-16 03:18:05,869 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 03:18:05,919 INFO L354 Elim1Store]: treesize reduction 98, result has 14.8 percent of original size [2021-10-16 03:18:05,919 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 184 treesize of output 137 [2021-10-16 03:18:05,925 INFO L173 IndexEqualityManager]: detected equality via solver [2021-10-16 03:18:05,927 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 03:18:05,929 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 105 treesize of output 88 [2021-10-16 03:18:05,954 INFO L354 Elim1Store]: treesize reduction 49, result has 5.8 percent of original size [2021-10-16 03:18:05,954 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 80 treesize of output 64 [2021-10-16 03:18:06,448 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-10-16 03:18:06,449 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 96 treesize of output 76 [2021-10-16 03:18:06,474 INFO L354 Elim1Store]: treesize reduction 51, result has 12.1 percent of original size [2021-10-16 03:18:06,474 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 70 treesize of output 45 [2021-10-16 03:18:06,481 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-10-16 03:18:06,481 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 39 treesize of output 27 [2021-10-16 03:18:06,650 INFO L354 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2021-10-16 03:18:06,651 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 26 treesize of output 14 [2021-10-16 03:18:06,740 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 03:18:06,740 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 03:18:07,677 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-16 03:18:07,678 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 600 [2021-10-16 03:18:07,680 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-16 03:18:07,681 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 761 [2021-10-16 03:18:11,724 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 03:18:11,725 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [554439613] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-16 03:18:11,725 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 4 imperfect interpolant sequences. [2021-10-16 03:18:11,725 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 10, 7, 8] total 26 [2021-10-16 03:18:11,725 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [150304955] [2021-10-16 03:18:11,726 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2021-10-16 03:18:11,726 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-16 03:18:11,726 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2021-10-16 03:18:11,727 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=114, Invalid=535, Unknown=1, NotChecked=0, Total=650 [2021-10-16 03:18:11,727 INFO L87 Difference]: Start difference. First operand 30 states and 40 transitions. Second operand has 26 states, 26 states have (on average 2.230769230769231) internal successors, (58), 26 states have internal predecessors, (58), 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) [2021-10-16 03:18:20,854 WARN L207 SmtUtils]: Spent 5.74 s on a formula simplification that was a NOOP. DAG size: 116 [2021-10-16 03:19:23,900 WARN L207 SmtUtils]: Spent 8.91 s on a formula simplification that was a NOOP. DAG size: 84 [2021-10-16 03:19:28,439 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 03:19:28,439 INFO L93 Difference]: Finished difference Result 61 states and 79 transitions. [2021-10-16 03:19:28,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-10-16 03:19:28,443 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 2.230769230769231) internal successors, (58), 26 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17 [2021-10-16 03:19:28,443 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 03:19:28,444 INFO L225 Difference]: With dead ends: 61 [2021-10-16 03:19:28,444 INFO L226 Difference]: Without dead ends: 57 [2021-10-16 03:19:28,445 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 38 SyntacticMatches, 2 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 325 ImplicationChecksByTransitivity, 39941.1ms TimeCoverageRelationStatistics Valid=295, Invalid=1185, Unknown=2, NotChecked=0, Total=1482 [2021-10-16 03:19:28,446 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2021-10-16 03:19:28,453 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 38. [2021-10-16 03:19:28,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38 states, 37 states have (on average 1.3513513513513513) internal successors, (50), 37 states have internal predecessors, (50), 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) [2021-10-16 03:19:28,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 50 transitions. [2021-10-16 03:19:28,454 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 50 transitions. Word has length 17 [2021-10-16 03:19:28,455 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 03:19:28,455 INFO L470 AbstractCegarLoop]: Abstraction has 38 states and 50 transitions. [2021-10-16 03:19:28,455 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 2.230769230769231) internal successors, (58), 26 states have internal predecessors, (58), 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) [2021-10-16 03:19:28,455 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 50 transitions. [2021-10-16 03:19:28,456 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-10-16 03:19:28,456 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 03:19:28,456 INFO L512 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-16 03:19:28,472 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98e4db16-f799-448f-91f7-866e6aa5cc62/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (16)] Forceful destruction successful, exit code 0 [2021-10-16 03:19:28,687 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98e4db16-f799-448f-91f7-866e6aa5cc62/bin/utaipan-mTDlp9Zugs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Ended with exit code 0 [2021-10-16 03:19:28,865 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98e4db16-f799-448f-91f7-866e6aa5cc62/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3,18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98e4db16-f799-448f-91f7-866e6aa5cc62/bin/utaipan-mTDlp9Zugs/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-16 03:19:28,866 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-16 03:19:28,867 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 03:19:28,867 INFO L82 PathProgramCache]: Analyzing trace with hash -1681061654, now seen corresponding path program 1 times [2021-10-16 03:19:28,867 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-16 03:19:28,867 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [330707056] [2021-10-16 03:19:28,867 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 03:19:28,867 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-16 03:19:28,867 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98e4db16-f799-448f-91f7-866e6aa5cc62/bin/utaipan-mTDlp9Zugs/mathsat [2021-10-16 03:19:28,868 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98e4db16-f799-448f-91f7-866e6aa5cc62/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-16 03:19:28,869 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98e4db16-f799-448f-91f7-866e6aa5cc62/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (19)] Waiting until timeout for monitored process [2021-10-16 03:19:29,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 03:19:29,305 INFO L263 TraceCheckSpWp]: Trace formula consists of 92 conjuncts, 13 conjunts are in the unsatisfiable core [2021-10-16 03:19:29,306 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 03:19:29,469 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 84 treesize of output 60 [2021-10-16 03:19:29,475 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 60 treesize of output 42 [2021-10-16 03:19:29,690 INFO L354 Elim1Store]: treesize reduction 48, result has 53.4 percent of original size [2021-10-16 03:19:29,690 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 42 treesize of output 72 [2021-10-16 03:19:42,754 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 23 treesize of output 11 [2021-10-16 03:19:42,804 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-10-16 03:19:42,804 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 03:19:43,173 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 82 treesize of output 58 [2021-10-16 03:19:43,178 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 58 treesize of output 40 [2021-10-16 03:19:45,472 INFO L354 Elim1Store]: treesize reduction 33, result has 2.9 percent of original size [2021-10-16 03:19:45,472 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 60 treesize of output 1 [2021-10-16 03:19:45,485 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-10-16 03:19:45,485 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-16 03:19:45,485 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [330707056] [2021-10-16 03:19:45,485 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [330707056] provided 1 perfect and 1 imperfect interpolant sequences [2021-10-16 03:19:45,485 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-10-16 03:19:45,485 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [8] total 14 [2021-10-16 03:19:45,485 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1537209947] [2021-10-16 03:19:45,486 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-10-16 03:19:45,486 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-16 03:19:45,486 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-10-16 03:19:45,487 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=131, Unknown=1, NotChecked=0, Total=182 [2021-10-16 03:19:45,487 INFO L87 Difference]: Start difference. First operand 38 states and 50 transitions. Second operand has 9 states, 9 states have (on average 1.6666666666666667) internal successors, (15), 9 states have internal predecessors, (15), 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) [2021-10-16 03:20:03,704 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 03:20:03,705 INFO L93 Difference]: Finished difference Result 53 states and 65 transitions. [2021-10-16 03:20:03,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-16 03:20:03,705 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 1.6666666666666667) internal successors, (15), 9 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17 [2021-10-16 03:20:03,706 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 03:20:03,706 INFO L225 Difference]: With dead ends: 53 [2021-10-16 03:20:03,706 INFO L226 Difference]: Without dead ends: 49 [2021-10-16 03:20:03,707 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 19 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 6909.0ms TimeCoverageRelationStatistics Valid=60, Invalid=149, Unknown=1, NotChecked=0, Total=210 [2021-10-16 03:20:03,707 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2021-10-16 03:20:03,714 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 41. [2021-10-16 03:20:03,715 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41 states, 40 states have (on average 1.325) internal successors, (53), 40 states have internal predecessors, (53), 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) [2021-10-16 03:20:03,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 53 transitions. [2021-10-16 03:20:03,716 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 53 transitions. Word has length 17 [2021-10-16 03:20:03,716 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 03:20:03,716 INFO L470 AbstractCegarLoop]: Abstraction has 41 states and 53 transitions. [2021-10-16 03:20:03,716 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 1.6666666666666667) internal successors, (15), 9 states have internal predecessors, (15), 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) [2021-10-16 03:20:03,717 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 53 transitions. [2021-10-16 03:20:03,717 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2021-10-16 03:20:03,718 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 03:20:03,718 INFO L512 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-16 03:20:03,737 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98e4db16-f799-448f-91f7-866e6aa5cc62/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (19)] Ended with exit code 0 [2021-10-16 03:20:03,933 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98e4db16-f799-448f-91f7-866e6aa5cc62/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 [2021-10-16 03:20:03,934 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-16 03:20:03,934 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 03:20:03,934 INFO L82 PathProgramCache]: Analyzing trace with hash -263616061, now seen corresponding path program 1 times [2021-10-16 03:20:03,935 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-16 03:20:03,935 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1340207349] [2021-10-16 03:20:03,935 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 03:20:03,935 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-16 03:20:03,935 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98e4db16-f799-448f-91f7-866e6aa5cc62/bin/utaipan-mTDlp9Zugs/mathsat [2021-10-16 03:20:03,935 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98e4db16-f799-448f-91f7-866e6aa5cc62/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-16 03:20:03,939 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98e4db16-f799-448f-91f7-866e6aa5cc62/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (20)] Waiting until timeout for monitored process [2021-10-16 03:20:04,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 03:20:04,276 INFO L263 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-16 03:20:04,277 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 03:20:04,339 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 15 treesize of output 7 [2021-10-16 03:20:04,364 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 6 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-10-16 03:20:04,364 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 03:20:04,447 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 6 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-10-16 03:20:04,447 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-16 03:20:04,447 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1340207349] [2021-10-16 03:20:04,447 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1340207349] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-16 03:20:04,447 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1512071314] [2021-10-16 03:20:04,447 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 03:20:04,448 INFO L170 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-10-16 03:20:04,448 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98e4db16-f799-448f-91f7-866e6aa5cc62/bin/utaipan-mTDlp9Zugs/cvc4 [2021-10-16 03:20:04,448 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98e4db16-f799-448f-91f7-866e6aa5cc62/bin/utaipan-mTDlp9Zugs/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-10-16 03:20:04,450 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98e4db16-f799-448f-91f7-866e6aa5cc62/bin/utaipan-mTDlp9Zugs/cvc4 --incremental --print-success --lang smt (21)] Waiting until timeout for monitored process [2021-10-16 03:20:04,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 03:20:04,939 INFO L263 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-16 03:20:04,940 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 03:20:04,992 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 15 treesize of output 7 [2021-10-16 03:20:05,005 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 6 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-10-16 03:20:05,005 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 03:20:05,067 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 6 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-10-16 03:20:05,067 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1512071314] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-16 03:20:05,067 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1455765852] [2021-10-16 03:20:05,068 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 03:20:05,068 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-16 03:20:05,068 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98e4db16-f799-448f-91f7-866e6aa5cc62/bin/utaipan-mTDlp9Zugs/z3 [2021-10-16 03:20:05,069 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98e4db16-f799-448f-91f7-866e6aa5cc62/bin/utaipan-mTDlp9Zugs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-16 03:20:05,071 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98e4db16-f799-448f-91f7-866e6aa5cc62/bin/utaipan-mTDlp9Zugs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2021-10-16 03:20:05,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 03:20:05,490 INFO L263 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-16 03:20:05,491 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 03:20:05,539 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 15 treesize of output 7 [2021-10-16 03:20:05,552 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 6 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-10-16 03:20:05,552 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 03:20:05,613 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 6 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-10-16 03:20:05,613 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1455765852] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-16 03:20:05,613 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 6 imperfect interpolant sequences. [2021-10-16 03:20:05,613 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5, 5, 5, 5] total 6 [2021-10-16 03:20:05,613 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [663268514] [2021-10-16 03:20:05,614 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-16 03:20:05,614 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-16 03:20:05,615 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-16 03:20:05,615 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-10-16 03:20:05,615 INFO L87 Difference]: Start difference. First operand 41 states and 53 transitions. Second operand has 6 states, 6 states have (on average 3.5) internal successors, (21), 6 states have internal predecessors, (21), 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) [2021-10-16 03:20:06,619 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 03:20:06,619 INFO L93 Difference]: Finished difference Result 47 states and 59 transitions. [2021-10-16 03:20:06,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-16 03:20:06,620 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.5) internal successors, (21), 6 states have internal predecessors, (21), 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 21 [2021-10-16 03:20:06,620 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 03:20:06,621 INFO L225 Difference]: With dead ends: 47 [2021-10-16 03:20:06,621 INFO L226 Difference]: Without dead ends: 0 [2021-10-16 03:20:06,621 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 121 GetRequests, 116 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 71.6ms TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-10-16 03:20:06,622 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-10-16 03:20:06,622 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-10-16 03:20:06,622 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 03:20:06,622 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-10-16 03:20:06,623 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 21 [2021-10-16 03:20:06,623 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 03:20:06,623 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-16 03:20:06,623 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.5) internal successors, (21), 6 states have internal predecessors, (21), 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) [2021-10-16 03:20:06,623 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-10-16 03:20:06,624 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-10-16 03:20:06,626 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-16 03:20:06,645 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98e4db16-f799-448f-91f7-866e6aa5cc62/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (20)] Forceful destruction successful, exit code 0 [2021-10-16 03:20:06,844 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98e4db16-f799-448f-91f7-866e6aa5cc62/bin/utaipan-mTDlp9Zugs/cvc4 --incremental --print-success --lang smt (21)] Forceful destruction successful, exit code 0 [2021-10-16 03:20:07,062 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98e4db16-f799-448f-91f7-866e6aa5cc62/bin/utaipan-mTDlp9Zugs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Ended with exit code 0 [2021-10-16 03:20:07,241 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98e4db16-f799-448f-91f7-866e6aa5cc62/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3,21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98e4db16-f799-448f-91f7-866e6aa5cc62/bin/utaipan-mTDlp9Zugs/cvc4 --incremental --print-success --lang smt,22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98e4db16-f799-448f-91f7-866e6aa5cc62/bin/utaipan-mTDlp9Zugs/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-16 03:20:07,244 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-10-16 03:20:07,249 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 03:20:07,446 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 03:20:25,683 WARN L207 SmtUtils]: Spent 18.21 s on a formula simplification. DAG size of input: 96 DAG size of output: 47 [2021-10-16 03:20:26,723 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-10-16 03:20:26,724 INFO L857 garLoopResultBuilder]: For program point L576(lines 576 602) no Hoare annotation was computed. [2021-10-16 03:20:26,724 INFO L857 garLoopResultBuilder]: For program point L601(line 601) no Hoare annotation was computed. [2021-10-16 03:20:26,725 INFO L857 garLoopResultBuilder]: For program point L595-1(lines 595 599) no Hoare annotation was computed. [2021-10-16 03:20:26,725 INFO L853 garLoopResultBuilder]: At program point L595-3(lines 595 599) the Hoare annotation is: (let ((.cse0 (= ULTIMATE.start_main_~m~0.offset (_ bv0 32)))) (or (and (bvslt (select (select |#memory_int| ULTIMATE.start_main_~m~0.base) ULTIMATE.start_main_~m~0.offset) (_ bv100 32)) .cse0) (and (exists ((v_arrayElimCell_193 (_ BitVec 32)) (ULTIMATE.start_main_~list~0.base (_ BitVec 32)) (v_arrayElimCell_192 (_ BitVec 32)) (v_arrayElimCell_195 (_ BitVec 32)) (ULTIMATE.start_main_~list~0.offset (_ BitVec 32))) (let ((.cse3 (= v_arrayElimCell_192 ULTIMATE.start_main_~list~0.base)) (.cse2 (= v_arrayElimCell_193 ULTIMATE.start_main_~list~0.offset)) (.cse1 (select (select |#memory_int| v_arrayElimCell_192) v_arrayElimCell_193))) (and (or (= (bvmul (_ bv2 32) v_arrayElimCell_195) .cse1) (not .cse2) (not .cse3)) (or (and .cse3 .cse2) (= v_arrayElimCell_195 (select (select |#memory_int| ULTIMATE.start_main_~list~0.base) ULTIMATE.start_main_~list~0.offset))) (bvsle .cse1 (_ bv100 32)) (let ((.cse4 (= v_arrayElimCell_193 ULTIMATE.start_main_~m~0.offset)) (.cse5 (= v_arrayElimCell_192 ULTIMATE.start_main_~m~0.base))) (or (and .cse4 .cse5 (bvslt (bvadd (bvmul v_arrayElimCell_195 (_ bv4294967295 32)) .cse1) (_ bv100 32))) (and (or (not .cse4) (not .cse5)) (bvslt (select (select |#memory_int| ULTIMATE.start_main_~m~0.base) ULTIMATE.start_main_~m~0.offset) (_ bv100 32)))))))) .cse0))) [2021-10-16 03:20:26,725 INFO L857 garLoopResultBuilder]: For program point L595-4(lines 595 599) no Hoare annotation was computed. [2021-10-16 03:20:26,725 INFO L857 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-10-16 03:20:26,725 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-10-16 03:20:26,725 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-10-16 03:20:26,725 INFO L857 garLoopResultBuilder]: For program point L600(lines 600 601) no Hoare annotation was computed. [2021-10-16 03:20:26,726 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 601) no Hoare annotation was computed. [2021-10-16 03:20:26,726 INFO L857 garLoopResultBuilder]: For program point L596(lines 596 597) no Hoare annotation was computed. [2021-10-16 03:20:26,726 INFO L857 garLoopResultBuilder]: For program point L596-2(lines 596 597) no Hoare annotation was computed. [2021-10-16 03:20:26,726 INFO L857 garLoopResultBuilder]: For program point L586(lines 586 592) no Hoare annotation was computed. [2021-10-16 03:20:26,726 INFO L853 garLoopResultBuilder]: At program point L586-2(lines 584 593) the Hoare annotation is: (let ((.cse5 (= (_ bv0 32) (select (select |#memory_int| ULTIMATE.start_main_~m~0.base) ULTIMATE.start_main_~m~0.offset))) (.cse7 (= ULTIMATE.start_main_~m~0.offset (_ bv0 32)))) (or (let ((.cse0 (select |#memory_$Pointer$.offset| ULTIMATE.start_main_~head~0.base)) (.cse3 (bvadd ULTIMATE.start_main_~head~0.offset (_ bv4 32))) (.cse4 (select |#memory_$Pointer$.base| ULTIMATE.start_main_~head~0.base)) (.cse1 (bvadd ULTIMATE.start_main_~head~0.offset (_ bv8 32))) (.cse2 (select |#memory_$Pointer$.offset| ULTIMATE.start_main_~list~0.base)) (.cse6 (select |#memory_$Pointer$.base| ULTIMATE.start_main_~list~0.base))) (and (= (select .cse0 .cse1) ULTIMATE.start_main_~head~0.offset) (= ULTIMATE.start_main_~list~0.offset (_ bv0 32)) (= (_ bv0 1) (bvadd (bvneg (select |#valid| ULTIMATE.start_main_~m~0.base)) (_ bv1 1))) (= (select .cse2 (_ bv4 32)) ULTIMATE.start_main_~m~0.offset) (= (select .cse0 .cse3) ULTIMATE.start_main_~m~0.offset) (= ULTIMATE.start_main_~m~0.base (select .cse4 .cse3)) .cse5 (= (select (select |#memory_int| ULTIMATE.start_main_~head~0.base) ULTIMATE.start_main_~head~0.offset) (_ bv1 32)) (= ULTIMATE.start_main_~head~0.offset (_ bv0 32)) (= (select .cse4 .cse1) ULTIMATE.start_main_~head~0.base) (= (select .cse2 (_ bv8 32)) (_ bv0 32)) (= ULTIMATE.start_main_~list~0.base (select .cse6 (bvadd (_ bv8 32) ULTIMATE.start_main_~list~0.offset))) (= (_ bv0 1) (bvadd (bvneg (bvneg (select |#valid| ULTIMATE.start_main_~list~0.base))) (_ bv1 1))) (= (select (select |#memory_int| ULTIMATE.start_main_~list~0.base) ULTIMATE.start_main_~list~0.offset) (_ bv1 32)) (= (select .cse6 (_ bv4 32)) ULTIMATE.start_main_~m~0.base) .cse7)) (and (not (= ULTIMATE.start_main_~list~0.base ULTIMATE.start_main_~m~0.base)) (exists ((ULTIMATE.start_main_~n~0.base (_ BitVec 32))) (and (not (= ULTIMATE.start_main_~m~0.base ULTIMATE.start_main_~n~0.base)) (= (_ bv0 1) (bvadd (bvneg (bvneg (select |#valid| ULTIMATE.start_main_~n~0.base))) (_ bv1 1))) (not (= ULTIMATE.start_main_~list~0.base ULTIMATE.start_main_~n~0.base)))) .cse5 (exists ((v_arrayElimCell_112 (_ BitVec 1))) (let ((.cse8 (bvneg v_arrayElimCell_112))) (and (= (_ bv0 1) (bvadd (select |#valid| ULTIMATE.start_main_~m~0.base) .cse8)) (= (_ bv0 1) (bvadd (bvneg .cse8) (_ bv1 1)))))) .cse7 (exists ((v_arrayElimCell_113 (_ BitVec 1))) (let ((.cse9 (bvneg (bvneg v_arrayElimCell_113)))) (and (= (_ bv0 1) (bvadd .cse9 (bvneg (select |#valid| ULTIMATE.start_main_~list~0.base)))) (= (_ bv0 1) (bvadd (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg .cse9)))))))) (_ bv1 1))))))))) [2021-10-16 03:20:26,726 INFO L857 garLoopResultBuilder]: For program point L584-2(lines 584 593) no Hoare annotation was computed. [2021-10-16 03:20:26,731 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-16 03:20:26,738 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_195,QUANTIFIED] [2021-10-16 03:20:26,739 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_192,QUANTIFIED] [2021-10-16 03:20:26,739 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_193,QUANTIFIED] [2021-10-16 03:20:26,739 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_193,QUANTIFIED] [2021-10-16 03:20:26,740 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~list~0.offset,QUANTIFIED] [2021-10-16 03:20:26,740 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_192,QUANTIFIED] [2021-10-16 03:20:26,740 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~list~0.base,QUANTIFIED] [2021-10-16 03:20:26,740 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_192,QUANTIFIED] [2021-10-16 03:20:26,740 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~list~0.base,QUANTIFIED] [2021-10-16 03:20:26,741 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_193,QUANTIFIED] [2021-10-16 03:20:26,741 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~list~0.offset,QUANTIFIED] [2021-10-16 03:20:26,741 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_195,QUANTIFIED] [2021-10-16 03:20:26,741 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~list~0.base,QUANTIFIED] [2021-10-16 03:20:26,742 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~list~0.offset,QUANTIFIED] [2021-10-16 03:20:26,742 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_192,QUANTIFIED] [2021-10-16 03:20:26,742 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_193,QUANTIFIED] [2021-10-16 03:20:26,742 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_193,QUANTIFIED] [2021-10-16 03:20:26,743 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_192,QUANTIFIED] [2021-10-16 03:20:26,743 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_195,QUANTIFIED] [2021-10-16 03:20:26,743 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_192,QUANTIFIED] [2021-10-16 03:20:26,743 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_193,QUANTIFIED] [2021-10-16 03:20:26,743 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_193,QUANTIFIED] [2021-10-16 03:20:26,744 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_192,QUANTIFIED] [2021-10-16 03:20:26,753 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_195,QUANTIFIED] [2021-10-16 03:20:26,753 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_192,QUANTIFIED] [2021-10-16 03:20:26,753 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_193,QUANTIFIED] [2021-10-16 03:20:26,753 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_193,QUANTIFIED] [2021-10-16 03:20:26,754 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~list~0.offset,QUANTIFIED] [2021-10-16 03:20:26,754 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_192,QUANTIFIED] [2021-10-16 03:20:26,754 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~list~0.base,QUANTIFIED] [2021-10-16 03:20:26,754 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_192,QUANTIFIED] [2021-10-16 03:20:26,754 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~list~0.base,QUANTIFIED] [2021-10-16 03:20:26,755 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_193,QUANTIFIED] [2021-10-16 03:20:26,755 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~list~0.offset,QUANTIFIED] [2021-10-16 03:20:26,755 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_195,QUANTIFIED] [2021-10-16 03:20:26,755 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~list~0.base,QUANTIFIED] [2021-10-16 03:20:26,755 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~list~0.offset,QUANTIFIED] [2021-10-16 03:20:26,756 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_192,QUANTIFIED] [2021-10-16 03:20:26,756 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_193,QUANTIFIED] [2021-10-16 03:20:26,756 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_193,QUANTIFIED] [2021-10-16 03:20:26,756 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_192,QUANTIFIED] [2021-10-16 03:20:26,756 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_195,QUANTIFIED] [2021-10-16 03:20:26,757 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_192,QUANTIFIED] [2021-10-16 03:20:26,757 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_193,QUANTIFIED] [2021-10-16 03:20:26,757 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_193,QUANTIFIED] [2021-10-16 03:20:26,757 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_192,QUANTIFIED] [2021-10-16 03:20:26,760 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.UnsupportedOperationException: translation of (bvneg (_ BitVec 1) (_ BitVec 1)) not yet implemented, please contact Matthias at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:211) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:129) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:165) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:129) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:165) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:129) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:165) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:129) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:165) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:129) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.RCFGBacktranslator.translateExpression(RCFGBacktranslator.java:394) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.RCFGBacktranslator.translateExpression(RCFGBacktranslator.java:1) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ModelTranslationContainer.translateExpression(ModelTranslationContainer.java:106) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ModelTranslationContainer.translateExpressionToString(ModelTranslationContainer.java:89) at de.uni_freiburg.informatik.ultimate.core.lib.results.InvariantResult.getLongDescription(InvariantResult.java:65) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ResultService.reportResult(ResultService.java:86) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopResultReporter.reportResult(CegarLoopResultReporter.java:139) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.createInvariantResults(TraceAbstractionStarter.java:452) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:192) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:155) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-10-16 03:20:26,763 INFO L168 Benchmark]: Toolchain (without parser) took 255389.77 ms. Allocated memory was 79.7 MB in the beginning and 102.8 MB in the end (delta: 23.1 MB). Free memory was 62.1 MB in the beginning and 37.2 MB in the end (delta: 24.9 MB). Peak memory consumption was 46.5 MB. Max. memory is 16.1 GB. [2021-10-16 03:20:26,763 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 79.7 MB. Free memory was 59.8 MB in the beginning and 59.8 MB in the end (delta: 60.8 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-16 03:20:26,764 INFO L168 Benchmark]: CACSL2BoogieTranslator took 463.77 ms. Allocated memory is still 79.7 MB. Free memory was 61.9 MB in the beginning and 54.7 MB in the end (delta: 7.2 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-16 03:20:26,764 INFO L168 Benchmark]: Boogie Procedure Inliner took 49.08 ms. Allocated memory is still 79.7 MB. Free memory was 54.7 MB in the beginning and 52.8 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-16 03:20:26,764 INFO L168 Benchmark]: Boogie Preprocessor took 35.10 ms. Allocated memory is still 79.7 MB. Free memory was 52.8 MB in the beginning and 51.2 MB in the end (delta: 1.6 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-16 03:20:26,765 INFO L168 Benchmark]: RCFGBuilder took 905.50 ms. Allocated memory is still 79.7 MB. Free memory was 51.0 MB in the beginning and 37.7 MB in the end (delta: 13.3 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. [2021-10-16 03:20:26,765 INFO L168 Benchmark]: TraceAbstraction took 253930.50 ms. Allocated memory was 79.7 MB in the beginning and 102.8 MB in the end (delta: 23.1 MB). Free memory was 37.2 MB in the beginning and 37.2 MB in the end (delta: -49.4 kB). Peak memory consumption was 24.6 MB. Max. memory is 16.1 GB. [2021-10-16 03:20:26,767 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 79.7 MB. Free memory was 59.8 MB in the beginning and 59.8 MB in the end (delta: 60.8 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 463.77 ms. Allocated memory is still 79.7 MB. Free memory was 61.9 MB in the beginning and 54.7 MB in the end (delta: 7.2 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 49.08 ms. Allocated memory is still 79.7 MB. Free memory was 54.7 MB in the beginning and 52.8 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 35.10 ms. Allocated memory is still 79.7 MB. Free memory was 52.8 MB in the beginning and 51.2 MB in the end (delta: 1.6 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 905.50 ms. Allocated memory is still 79.7 MB. Free memory was 51.0 MB in the beginning and 37.7 MB in the end (delta: 13.3 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. * TraceAbstraction took 253930.50 ms. Allocated memory was 79.7 MB in the beginning and 102.8 MB in the end (delta: 23.1 MB). Free memory was 37.2 MB in the beginning and 37.2 MB in the end (delta: -49.4 kB). Peak memory consumption was 24.6 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_195,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_192,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_193,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_193,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~list~0.offset,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_192,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~list~0.base,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_192,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~list~0.base,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_193,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~list~0.offset,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_195,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~list~0.base,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~list~0.offset,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_192,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_193,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_193,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_192,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_195,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_192,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_193,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_193,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_192,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_195,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_192,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_193,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_193,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~list~0.offset,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_192,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~list~0.base,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_192,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~list~0.base,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_193,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~list~0.offset,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_195,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~list~0.base,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~list~0.offset,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_192,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_193,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_193,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_192,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_195,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_192,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_193,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_193,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_192,QUANTIFIED] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 601]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 16 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 253799.7ms, OverallIterations: 9, TraceHistogramMax: 3, EmptinessCheckTime: 17.0ms, AutomataDifference: 133449.9ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 19481.1ms, InitialAbstractionConstructionTime: 10.1ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 116 SDtfs, 221 SDslu, 550 SDs, 0 SdLazy, 651 SolverSat, 137 SolverUnsat, 22 SolverUnknown, 0 SolverNotchecked, 82303.7ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 546 GetRequests, 395 SyntacticMatches, 15 SemanticMatches, 136 ConstructedPredicates, 14 IntricatePredicates, 3 DeprecatedPredicates, 688 ImplicationChecksByTransitivity, 95354.1ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=41occurred in iteration=8, InterpolantAutomatonStates: 73, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 71.4ms AutomataMinimizationTime, 9 MinimizatonAttempts, 75 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: 0.0ms HoareAnnotationTime, 2 LocationsWithAnnotation, 2 PreInvPairs, 13 NumberOfFragments, 287 HoareAnnotationTreeSize, 2 FomulaSimplifications, 22423 FormulaSimplificationTreeSizeReduction, 222.8ms HoareSimplificationTime, 2 FomulaSimplificationsInter, 241 FormulaSimplificationTreeSizeReductionInter, 19251.8ms HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 200.2ms SsaConstructionTime, 1506.5ms SatisfiabilityAnalysisTime, 90546.8ms InterpolantComputationTime, 274 NumberOfCodeBlocks, 274 NumberOfCodeBlocksAsserted, 23 NumberOfCheckSat, 510 ConstructedInterpolants, 91 QuantifiedInterpolants, 22764 SizeOfPredicates, 217 NumberOfNonLiveVariables, 1398 ConjunctsInSsa, 236 ConjunctsInUnsatCore, 38 InterpolantComputations, 5 PerfectInterpolantSequences, 89/204 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 595]: Loop Invariant [2021-10-16 03:20:26,778 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_195,QUANTIFIED] [2021-10-16 03:20:26,778 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_192,QUANTIFIED] [2021-10-16 03:20:26,778 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_193,QUANTIFIED] [2021-10-16 03:20:26,779 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_193,QUANTIFIED] [2021-10-16 03:20:26,779 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~list~0.offset,QUANTIFIED] [2021-10-16 03:20:26,779 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_192,QUANTIFIED] [2021-10-16 03:20:26,779 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~list~0.base,QUANTIFIED] [2021-10-16 03:20:26,779 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_192,QUANTIFIED] [2021-10-16 03:20:26,779 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~list~0.base,QUANTIFIED] [2021-10-16 03:20:26,780 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_193,QUANTIFIED] [2021-10-16 03:20:26,780 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~list~0.offset,QUANTIFIED] [2021-10-16 03:20:26,780 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_195,QUANTIFIED] [2021-10-16 03:20:26,780 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~list~0.base,QUANTIFIED] [2021-10-16 03:20:26,780 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~list~0.offset,QUANTIFIED] [2021-10-16 03:20:26,780 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_192,QUANTIFIED] [2021-10-16 03:20:26,781 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_193,QUANTIFIED] [2021-10-16 03:20:26,781 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_193,QUANTIFIED] [2021-10-16 03:20:26,781 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_192,QUANTIFIED] [2021-10-16 03:20:26,781 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_195,QUANTIFIED] [2021-10-16 03:20:26,781 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_192,QUANTIFIED] [2021-10-16 03:20:26,781 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_193,QUANTIFIED] [2021-10-16 03:20:26,782 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_193,QUANTIFIED] [2021-10-16 03:20:26,782 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_192,QUANTIFIED] [2021-10-16 03:20:26,783 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_195,QUANTIFIED] [2021-10-16 03:20:26,783 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_192,QUANTIFIED] [2021-10-16 03:20:26,784 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_193,QUANTIFIED] [2021-10-16 03:20:26,784 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_193,QUANTIFIED] [2021-10-16 03:20:26,784 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~list~0.offset,QUANTIFIED] [2021-10-16 03:20:26,784 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_192,QUANTIFIED] [2021-10-16 03:20:26,784 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~list~0.base,QUANTIFIED] [2021-10-16 03:20:26,784 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_192,QUANTIFIED] [2021-10-16 03:20:26,785 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~list~0.base,QUANTIFIED] [2021-10-16 03:20:26,785 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_193,QUANTIFIED] [2021-10-16 03:20:26,785 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~list~0.offset,QUANTIFIED] [2021-10-16 03:20:26,785 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_195,QUANTIFIED] [2021-10-16 03:20:26,785 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~list~0.base,QUANTIFIED] [2021-10-16 03:20:26,785 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~list~0.offset,QUANTIFIED] [2021-10-16 03:20:26,786 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_192,QUANTIFIED] [2021-10-16 03:20:26,786 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_193,QUANTIFIED] [2021-10-16 03:20:26,786 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_193,QUANTIFIED] [2021-10-16 03:20:26,786 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_192,QUANTIFIED] [2021-10-16 03:20:26,786 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_195,QUANTIFIED] [2021-10-16 03:20:26,786 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_192,QUANTIFIED] [2021-10-16 03:20:26,787 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_193,QUANTIFIED] [2021-10-16 03:20:26,787 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_193,QUANTIFIED] [2021-10-16 03:20:26,787 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_192,QUANTIFIED] Derived loop invariant: (~bvslt32(unknown-#memory_int-unknown[m][m], 100bv32) && m == 0bv32) || ((\exists v_arrayElimCell_193 : bv32, ULTIMATE.start_main_~list~0.base : bv32, v_arrayElimCell_192 : bv32, v_arrayElimCell_195 : bv32, ULTIMATE.start_main_~list~0.offset : bv32 :: ((((~bvmul32(2bv32, v_arrayElimCell_195) == unknown-#memory_int-unknown[v_arrayElimCell_192][v_arrayElimCell_193] || !(v_arrayElimCell_193 == ULTIMATE.start_main_~list~0.offset)) || !(v_arrayElimCell_192 == ULTIMATE.start_main_~list~0.base)) && ((v_arrayElimCell_192 == ULTIMATE.start_main_~list~0.base && v_arrayElimCell_193 == ULTIMATE.start_main_~list~0.offset) || v_arrayElimCell_195 == unknown-#memory_int-unknown[ULTIMATE.start_main_~list~0.base][ULTIMATE.start_main_~list~0.offset])) && ~bvsle32(unknown-#memory_int-unknown[v_arrayElimCell_192][v_arrayElimCell_193], 100bv32)) && (((v_arrayElimCell_193 == m && v_arrayElimCell_192 == m) && ~bvslt32(~bvadd64(~bvmul32(v_arrayElimCell_195, 4294967295bv32), unknown-#memory_int-unknown[v_arrayElimCell_192][v_arrayElimCell_193]), 100bv32)) || ((!(v_arrayElimCell_193 == m) || !(v_arrayElimCell_192 == m)) && ~bvslt32(unknown-#memory_int-unknown[m][m], 100bv32)))) && m == 0bv32) - ExceptionOrErrorResult: UnsupportedOperationException: translation of (bvneg (_ BitVec 1) (_ BitVec 1)) not yet implemented, please contact Matthias de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: UnsupportedOperationException: translation of (bvneg (_ BitVec 1) (_ BitVec 1)) not yet implemented, please contact Matthias: de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:211) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2021-10-16 03:20:26,898 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98e4db16-f799-448f-91f7-866e6aa5cc62/bin/utaipan-mTDlp9Zugs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...