./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memcleanup.prp --file ../../sv-benchmarks/c/forester-heap/dll-token-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (memcleanup) Using default analysis Version e943c265 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88c995ab-7ae0-42f4-b91c-7631550c27c1/bin/utaipan-9zjyvhn0QE/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88c995ab-7ae0-42f4-b91c-7631550c27c1/bin/utaipan-9zjyvhn0QE/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88c995ab-7ae0-42f4-b91c-7631550c27c1/bin/utaipan-9zjyvhn0QE/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88c995ab-7ae0-42f4-b91c-7631550c27c1/bin/utaipan-9zjyvhn0QE/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/forester-heap/dll-token-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88c995ab-7ae0-42f4-b91c-7631550c27c1/bin/utaipan-9zjyvhn0QE/config/svcomp-MemCleanup-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88c995ab-7ae0-42f4-b91c-7631550c27c1/bin/utaipan-9zjyvhn0QE --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-memcleanup) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 820401b0140b0bfb9dffe62418c7fb9ec2170c8bc6edd71581a88d2ffbcfa1c6 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(valid-memcleanup) --- Real Ultimate output --- This is Ultimate 0.2.1-dev-e943c26 [2021-10-24 10:08:43,903 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-24 10:08:43,907 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-24 10:08:43,967 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-24 10:08:43,968 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-24 10:08:43,970 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-24 10:08:43,972 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-24 10:08:43,975 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-24 10:08:43,978 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-24 10:08:43,980 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-24 10:08:43,982 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-24 10:08:43,984 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-24 10:08:43,985 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-24 10:08:43,986 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-24 10:08:43,989 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-24 10:08:43,991 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-24 10:08:43,992 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-24 10:08:43,994 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-24 10:08:43,997 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-24 10:08:44,000 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-24 10:08:44,006 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-24 10:08:44,008 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-24 10:08:44,010 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-24 10:08:44,012 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-24 10:08:44,016 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-24 10:08:44,017 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-24 10:08:44,018 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-24 10:08:44,019 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-24 10:08:44,027 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-24 10:08:44,029 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-24 10:08:44,030 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-24 10:08:44,031 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-24 10:08:44,034 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-24 10:08:44,035 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-24 10:08:44,037 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-24 10:08:44,037 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-24 10:08:44,038 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-24 10:08:44,039 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-24 10:08:44,039 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-24 10:08:44,040 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-24 10:08:44,041 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-24 10:08:44,042 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88c995ab-7ae0-42f4-b91c-7631550c27c1/bin/utaipan-9zjyvhn0QE/config/svcomp-MemCleanup-32bit-Taipan_Default.epf [2021-10-24 10:08:44,100 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-24 10:08:44,100 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-24 10:08:44,102 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-24 10:08:44,110 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-24 10:08:44,111 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-24 10:08:44,111 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-24 10:08:44,111 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-10-24 10:08:44,112 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-24 10:08:44,112 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-24 10:08:44,112 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-10-24 10:08:44,113 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-10-24 10:08:44,114 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-24 10:08:44,114 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-10-24 10:08:44,114 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-10-24 10:08:44,115 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-10-24 10:08:44,116 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-24 10:08:44,116 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-24 10:08:44,116 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-24 10:08:44,117 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-24 10:08:44,117 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-24 10:08:44,117 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-24 10:08:44,117 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-24 10:08:44,118 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-24 10:08:44,118 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-10-24 10:08:44,118 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-10-24 10:08:44,118 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-24 10:08:44,120 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-24 10:08:44,121 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-24 10:08:44,121 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-24 10:08:44,121 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-24 10:08:44,122 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-24 10:08:44,122 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-24 10:08:44,123 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-24 10:08:44,123 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-24 10:08:44,123 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-10-24 10:08:44,123 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-24 10:08:44,124 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-24 10:08:44,124 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-24 10:08:44,124 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_88c995ab-7ae0-42f4-b91c-7631550c27c1/bin/utaipan-9zjyvhn0QE/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88c995ab-7ae0-42f4-b91c-7631550c27c1/bin/utaipan-9zjyvhn0QE Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-memcleanup) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 820401b0140b0bfb9dffe62418c7fb9ec2170c8bc6edd71581a88d2ffbcfa1c6 [2021-10-24 10:08:44,557 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-24 10:08:44,584 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-24 10:08:44,588 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-24 10:08:44,589 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-24 10:08:44,590 INFO L275 PluginConnector]: CDTParser initialized [2021-10-24 10:08:44,591 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88c995ab-7ae0-42f4-b91c-7631550c27c1/bin/utaipan-9zjyvhn0QE/../../sv-benchmarks/c/forester-heap/dll-token-2.i [2021-10-24 10:08:44,703 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88c995ab-7ae0-42f4-b91c-7631550c27c1/bin/utaipan-9zjyvhn0QE/data/8ceaf3762/14c03403573944b886cc646e9c6e7331/FLAG8ef08ef9b [2021-10-24 10:08:45,472 INFO L306 CDTParser]: Found 1 translation units. [2021-10-24 10:08:45,473 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88c995ab-7ae0-42f4-b91c-7631550c27c1/sv-benchmarks/c/forester-heap/dll-token-2.i [2021-10-24 10:08:45,499 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88c995ab-7ae0-42f4-b91c-7631550c27c1/bin/utaipan-9zjyvhn0QE/data/8ceaf3762/14c03403573944b886cc646e9c6e7331/FLAG8ef08ef9b [2021-10-24 10:08:45,741 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88c995ab-7ae0-42f4-b91c-7631550c27c1/bin/utaipan-9zjyvhn0QE/data/8ceaf3762/14c03403573944b886cc646e9c6e7331 [2021-10-24 10:08:45,747 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-24 10:08:45,749 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-24 10:08:45,767 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-24 10:08:45,768 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-24 10:08:45,771 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-24 10:08:45,773 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 10:08:45" (1/1) ... [2021-10-24 10:08:45,775 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3cd8f179 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:08:45, skipping insertion in model container [2021-10-24 10:08:45,775 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 10:08:45" (1/1) ... [2021-10-24 10:08:45,783 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-24 10:08:45,867 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-24 10:08:46,339 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_88c995ab-7ae0-42f4-b91c-7631550c27c1/sv-benchmarks/c/forester-heap/dll-token-2.i[22229,22242] [2021-10-24 10:08:46,346 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_88c995ab-7ae0-42f4-b91c-7631550c27c1/sv-benchmarks/c/forester-heap/dll-token-2.i[22398,22411] [2021-10-24 10:08:46,347 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_88c995ab-7ae0-42f4-b91c-7631550c27c1/sv-benchmarks/c/forester-heap/dll-token-2.i[22489,22502] [2021-10-24 10:08:46,349 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_88c995ab-7ae0-42f4-b91c-7631550c27c1/sv-benchmarks/c/forester-heap/dll-token-2.i[22571,22584] [2021-10-24 10:08:46,351 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_88c995ab-7ae0-42f4-b91c-7631550c27c1/sv-benchmarks/c/forester-heap/dll-token-2.i[22649,22662] [2021-10-24 10:08:46,354 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_88c995ab-7ae0-42f4-b91c-7631550c27c1/sv-benchmarks/c/forester-heap/dll-token-2.i[22795,22808] [2021-10-24 10:08:46,357 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-24 10:08:46,367 INFO L203 MainTranslator]: Completed pre-run [2021-10-24 10:08:46,433 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_88c995ab-7ae0-42f4-b91c-7631550c27c1/sv-benchmarks/c/forester-heap/dll-token-2.i[22229,22242] [2021-10-24 10:08:46,435 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_88c995ab-7ae0-42f4-b91c-7631550c27c1/sv-benchmarks/c/forester-heap/dll-token-2.i[22398,22411] [2021-10-24 10:08:46,437 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_88c995ab-7ae0-42f4-b91c-7631550c27c1/sv-benchmarks/c/forester-heap/dll-token-2.i[22489,22502] [2021-10-24 10:08:46,438 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_88c995ab-7ae0-42f4-b91c-7631550c27c1/sv-benchmarks/c/forester-heap/dll-token-2.i[22571,22584] [2021-10-24 10:08:46,439 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_88c995ab-7ae0-42f4-b91c-7631550c27c1/sv-benchmarks/c/forester-heap/dll-token-2.i[22649,22662] [2021-10-24 10:08:46,450 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_88c995ab-7ae0-42f4-b91c-7631550c27c1/sv-benchmarks/c/forester-heap/dll-token-2.i[22795,22808] [2021-10-24 10:08:46,463 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-24 10:08:46,504 INFO L208 MainTranslator]: Completed translation [2021-10-24 10:08:46,505 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:08:46 WrapperNode [2021-10-24 10:08:46,506 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-24 10:08:46,508 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-24 10:08:46,508 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-24 10:08:46,508 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-24 10:08:46,517 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:08:46" (1/1) ... [2021-10-24 10:08:46,559 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:08:46" (1/1) ... [2021-10-24 10:08:46,602 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-24 10:08:46,603 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-24 10:08:46,603 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-24 10:08:46,603 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-24 10:08:46,615 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:08:46" (1/1) ... [2021-10-24 10:08:46,615 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:08:46" (1/1) ... [2021-10-24 10:08:46,639 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:08:46" (1/1) ... [2021-10-24 10:08:46,640 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:08:46" (1/1) ... [2021-10-24 10:08:46,650 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:08:46" (1/1) ... [2021-10-24 10:08:46,656 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:08:46" (1/1) ... [2021-10-24 10:08:46,658 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:08:46" (1/1) ... [2021-10-24 10:08:46,672 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-24 10:08:46,673 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-24 10:08:46,674 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-24 10:08:46,674 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-24 10:08:46,675 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:08:46" (1/1) ... [2021-10-24 10:08:46,685 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-24 10:08:46,704 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88c995ab-7ae0-42f4-b91c-7631550c27c1/bin/utaipan-9zjyvhn0QE/z3 [2021-10-24 10:08:46,724 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88c995ab-7ae0-42f4-b91c-7631550c27c1/bin/utaipan-9zjyvhn0QE/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-24 10:08:46,746 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88c995ab-7ae0-42f4-b91c-7631550c27c1/bin/utaipan-9zjyvhn0QE/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-24 10:08:46,788 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-10-24 10:08:46,788 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-10-24 10:08:46,789 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-10-24 10:08:46,789 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-10-24 10:08:46,789 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-24 10:08:46,789 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-10-24 10:08:46,790 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-24 10:08:46,790 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-24 10:08:46,790 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-24 10:08:46,790 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-24 10:08:47,584 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-24 10:08:47,585 INFO L299 CfgBuilder]: Removed 19 assume(true) statements. [2021-10-24 10:08:47,588 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 10:08:47 BoogieIcfgContainer [2021-10-24 10:08:47,588 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-24 10:08:47,590 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-24 10:08:47,591 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-24 10:08:47,595 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-24 10:08:47,595 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 10:08:45" (1/3) ... [2021-10-24 10:08:47,596 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3f0751b6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 10:08:47, skipping insertion in model container [2021-10-24 10:08:47,596 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:08:46" (2/3) ... [2021-10-24 10:08:47,597 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3f0751b6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 10:08:47, skipping insertion in model container [2021-10-24 10:08:47,597 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 10:08:47" (3/3) ... [2021-10-24 10:08:47,598 INFO L111 eAbstractionObserver]: Analyzing ICFG dll-token-2.i [2021-10-24 10:08:47,604 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-24 10:08:47,605 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 64 error locations. [2021-10-24 10:08:47,701 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-24 10:08:47,738 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=false, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, 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 [2021-10-24 10:08:47,738 INFO L340 AbstractCegarLoop]: Starting to check reachability of 64 error locations. [2021-10-24 10:08:47,790 INFO L276 IsEmpty]: Start isEmpty. Operand has 123 states, 58 states have (on average 2.5172413793103448) internal successors, (146), 122 states have internal predecessors, (146), 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) [2021-10-24 10:08:47,797 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2021-10-24 10:08:47,797 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 10:08:47,798 INFO L512 BasicCegarLoop]: trace histogram [1, 1] [2021-10-24 10:08:47,799 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 60 more)] === [2021-10-24 10:08:47,806 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 10:08:47,806 INFO L82 PathProgramCache]: Analyzing trace with hash 8839, now seen corresponding path program 1 times [2021-10-24 10:08:47,816 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-24 10:08:47,817 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1263965147] [2021-10-24 10:08:47,817 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 10:08:47,818 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-24 10:08:47,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 10:08:48,028 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 10:08:48,029 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-24 10:08:48,029 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1263965147] [2021-10-24 10:08:48,030 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1263965147] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-24 10:08:48,031 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-24 10:08:48,031 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-10-24 10:08:48,033 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [109699055] [2021-10-24 10:08:48,039 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-24 10:08:48,040 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-24 10:08:48,057 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-24 10:08:48,058 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-24 10:08:48,062 INFO L87 Difference]: Start difference. First operand has 123 states, 58 states have (on average 2.5172413793103448) internal successors, (146), 122 states have internal predecessors, (146), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 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) [2021-10-24 10:08:48,280 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 10:08:48,281 INFO L93 Difference]: Finished difference Result 140 states and 143 transitions. [2021-10-24 10:08:48,281 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-24 10:08:48,283 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 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 2 [2021-10-24 10:08:48,285 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 10:08:48,296 INFO L225 Difference]: With dead ends: 140 [2021-10-24 10:08:48,298 INFO L226 Difference]: Without dead ends: 139 [2021-10-24 10:08:48,302 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 7.2ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-24 10:08:48,324 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 139 states. [2021-10-24 10:08:48,366 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 139 to 119. [2021-10-24 10:08:48,368 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 119 states, 58 states have (on average 2.086206896551724) internal successors, (121), 118 states have internal predecessors, (121), 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) [2021-10-24 10:08:48,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 119 states and 121 transitions. [2021-10-24 10:08:48,383 INFO L78 Accepts]: Start accepts. Automaton has 119 states and 121 transitions. Word has length 2 [2021-10-24 10:08:48,384 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 10:08:48,385 INFO L470 AbstractCegarLoop]: Abstraction has 119 states and 121 transitions. [2021-10-24 10:08:48,386 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 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) [2021-10-24 10:08:48,386 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states and 121 transitions. [2021-10-24 10:08:48,386 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2021-10-24 10:08:48,386 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 10:08:48,386 INFO L512 BasicCegarLoop]: trace histogram [1, 1] [2021-10-24 10:08:48,386 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-24 10:08:48,387 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 60 more)] === [2021-10-24 10:08:48,388 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 10:08:48,388 INFO L82 PathProgramCache]: Analyzing trace with hash 8840, now seen corresponding path program 1 times [2021-10-24 10:08:48,388 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-24 10:08:48,388 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [25438997] [2021-10-24 10:08:48,389 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 10:08:48,389 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-24 10:08:48,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 10:08:48,492 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 10:08:48,493 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-24 10:08:48,493 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [25438997] [2021-10-24 10:08:48,493 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [25438997] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-24 10:08:48,494 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-24 10:08:48,494 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-10-24 10:08:48,494 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2114771750] [2021-10-24 10:08:48,495 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-24 10:08:48,496 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-24 10:08:48,497 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-24 10:08:48,497 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-24 10:08:48,498 INFO L87 Difference]: Start difference. First operand 119 states and 121 transitions. Second operand has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 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) [2021-10-24 10:08:48,692 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 10:08:48,692 INFO L93 Difference]: Finished difference Result 144 states and 146 transitions. [2021-10-24 10:08:48,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-24 10:08:48,693 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 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 2 [2021-10-24 10:08:48,694 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 10:08:48,699 INFO L225 Difference]: With dead ends: 144 [2021-10-24 10:08:48,699 INFO L226 Difference]: Without dead ends: 144 [2021-10-24 10:08:48,700 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 10.7ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-24 10:08:48,702 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 144 states. [2021-10-24 10:08:48,719 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 144 to 116. [2021-10-24 10:08:48,721 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 116 states, 58 states have (on average 2.0344827586206895) internal successors, (118), 115 states have internal predecessors, (118), 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) [2021-10-24 10:08:48,723 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116 states to 116 states and 118 transitions. [2021-10-24 10:08:48,723 INFO L78 Accepts]: Start accepts. Automaton has 116 states and 118 transitions. Word has length 2 [2021-10-24 10:08:48,724 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 10:08:48,724 INFO L470 AbstractCegarLoop]: Abstraction has 116 states and 118 transitions. [2021-10-24 10:08:48,726 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 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) [2021-10-24 10:08:48,726 INFO L276 IsEmpty]: Start isEmpty. Operand 116 states and 118 transitions. [2021-10-24 10:08:48,726 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-10-24 10:08:48,727 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 10:08:48,731 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-24 10:08:48,731 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-24 10:08:48,731 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr18REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 60 more)] === [2021-10-24 10:08:48,732 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 10:08:48,732 INFO L82 PathProgramCache]: Analyzing trace with hash -365389701, now seen corresponding path program 1 times [2021-10-24 10:08:48,733 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-24 10:08:48,733 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [712670329] [2021-10-24 10:08:48,733 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 10:08:48,734 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-24 10:08:48,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 10:08:48,943 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 10:08:48,943 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-24 10:08:48,944 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [712670329] [2021-10-24 10:08:48,944 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [712670329] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-24 10:08:48,944 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-24 10:08:48,944 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-24 10:08:48,945 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [700824661] [2021-10-24 10:08:48,945 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-24 10:08:48,945 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-24 10:08:48,946 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-24 10:08:48,946 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-24 10:08:48,947 INFO L87 Difference]: Start difference. First operand 116 states and 118 transitions. Second operand has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 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) [2021-10-24 10:08:49,354 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 10:08:49,354 INFO L93 Difference]: Finished difference Result 219 states and 223 transitions. [2021-10-24 10:08:49,355 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-24 10:08:49,355 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 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 [2021-10-24 10:08:49,355 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 10:08:49,357 INFO L225 Difference]: With dead ends: 219 [2021-10-24 10:08:49,357 INFO L226 Difference]: Without dead ends: 219 [2021-10-24 10:08:49,358 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 31.2ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-24 10:08:49,358 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 219 states. [2021-10-24 10:08:49,367 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 219 to 149. [2021-10-24 10:08:49,368 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 149 states, 91 states have (on average 1.978021978021978) internal successors, (180), 148 states have internal predecessors, (180), 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) [2021-10-24 10:08:49,369 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 149 states to 149 states and 180 transitions. [2021-10-24 10:08:49,370 INFO L78 Accepts]: Start accepts. Automaton has 149 states and 180 transitions. Word has length 7 [2021-10-24 10:08:49,370 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 10:08:49,370 INFO L470 AbstractCegarLoop]: Abstraction has 149 states and 180 transitions. [2021-10-24 10:08:49,371 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 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) [2021-10-24 10:08:49,371 INFO L276 IsEmpty]: Start isEmpty. Operand 149 states and 180 transitions. [2021-10-24 10:08:49,371 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-10-24 10:08:49,371 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 10:08:49,372 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-24 10:08:49,372 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-10-24 10:08:49,372 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr17REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 60 more)] === [2021-10-24 10:08:49,373 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 10:08:49,373 INFO L82 PathProgramCache]: Analyzing trace with hash -365389702, now seen corresponding path program 1 times [2021-10-24 10:08:49,373 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-24 10:08:49,374 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1661676532] [2021-10-24 10:08:49,374 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 10:08:49,374 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-24 10:08:49,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 10:08:49,433 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 10:08:49,434 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-24 10:08:49,434 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1661676532] [2021-10-24 10:08:49,434 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1661676532] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-24 10:08:49,435 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-24 10:08:49,435 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-24 10:08:49,435 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [304833910] [2021-10-24 10:08:49,436 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-24 10:08:49,436 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-24 10:08:49,437 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-24 10:08:49,437 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-24 10:08:49,437 INFO L87 Difference]: Start difference. First operand 149 states and 180 transitions. Second operand has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:08:49,627 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 10:08:49,627 INFO L93 Difference]: Finished difference Result 139 states and 150 transitions. [2021-10-24 10:08:49,628 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-24 10:08:49,628 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2021-10-24 10:08:49,629 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 10:08:49,630 INFO L225 Difference]: With dead ends: 139 [2021-10-24 10:08:49,630 INFO L226 Difference]: Without dead ends: 139 [2021-10-24 10:08:49,630 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 13.8ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-24 10:08:49,631 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 139 states. [2021-10-24 10:08:49,637 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 139 to 134. [2021-10-24 10:08:49,637 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 134 states, 91 states have (on average 1.6373626373626373) internal successors, (149), 133 states have internal predecessors, (149), 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) [2021-10-24 10:08:49,638 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134 states to 134 states and 149 transitions. [2021-10-24 10:08:49,639 INFO L78 Accepts]: Start accepts. Automaton has 134 states and 149 transitions. Word has length 7 [2021-10-24 10:08:49,639 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 10:08:49,639 INFO L470 AbstractCegarLoop]: Abstraction has 134 states and 149 transitions. [2021-10-24 10:08:49,640 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:08:49,640 INFO L276 IsEmpty]: Start isEmpty. Operand 134 states and 149 transitions. [2021-10-24 10:08:49,640 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-10-24 10:08:49,640 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 10:08:49,641 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-24 10:08:49,641 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-10-24 10:08:49,641 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr11REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 60 more)] === [2021-10-24 10:08:49,642 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 10:08:49,642 INFO L82 PathProgramCache]: Analyzing trace with hash 1048061535, now seen corresponding path program 1 times [2021-10-24 10:08:49,642 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-24 10:08:49,643 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [303737956] [2021-10-24 10:08:49,643 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 10:08:49,643 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-24 10:08:49,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 10:08:49,754 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 10:08:49,755 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-24 10:08:49,755 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [303737956] [2021-10-24 10:08:49,755 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [303737956] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-24 10:08:49,755 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-24 10:08:49,756 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-24 10:08:49,756 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [90299551] [2021-10-24 10:08:49,757 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-24 10:08:49,757 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-24 10:08:49,757 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-24 10:08:49,758 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-24 10:08:49,758 INFO L87 Difference]: Start difference. First operand 134 states and 149 transitions. Second operand has 5 states, 4 states have (on average 2.25) internal successors, (9), 5 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) [2021-10-24 10:08:49,992 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 10:08:49,992 INFO L93 Difference]: Finished difference Result 133 states and 147 transitions. [2021-10-24 10:08:49,993 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-24 10:08:49,993 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.25) internal successors, (9), 5 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 [2021-10-24 10:08:49,994 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 10:08:49,995 INFO L225 Difference]: With dead ends: 133 [2021-10-24 10:08:49,995 INFO L226 Difference]: Without dead ends: 133 [2021-10-24 10:08:49,995 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 39.3ms TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-10-24 10:08:49,996 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 133 states. [2021-10-24 10:08:50,008 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 133 to 133. [2021-10-24 10:08:50,010 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 133 states, 91 states have (on average 1.6153846153846154) internal successors, (147), 132 states have internal predecessors, (147), 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) [2021-10-24 10:08:50,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 133 states to 133 states and 147 transitions. [2021-10-24 10:08:50,012 INFO L78 Accepts]: Start accepts. Automaton has 133 states and 147 transitions. Word has length 9 [2021-10-24 10:08:50,012 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 10:08:50,013 INFO L470 AbstractCegarLoop]: Abstraction has 133 states and 147 transitions. [2021-10-24 10:08:50,016 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.25) internal successors, (9), 5 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) [2021-10-24 10:08:50,017 INFO L276 IsEmpty]: Start isEmpty. Operand 133 states and 147 transitions. [2021-10-24 10:08:50,017 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-10-24 10:08:50,018 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 10:08:50,019 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-24 10:08:50,019 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-10-24 10:08:50,019 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr10REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 60 more)] === [2021-10-24 10:08:50,020 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 10:08:50,020 INFO L82 PathProgramCache]: Analyzing trace with hash 1048061534, now seen corresponding path program 1 times [2021-10-24 10:08:50,023 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-24 10:08:50,025 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1538768035] [2021-10-24 10:08:50,025 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 10:08:50,026 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-24 10:08:50,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 10:08:50,137 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 10:08:50,138 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-24 10:08:50,138 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1538768035] [2021-10-24 10:08:50,139 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1538768035] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-24 10:08:50,139 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-24 10:08:50,139 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-24 10:08:50,140 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1950689948] [2021-10-24 10:08:50,140 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-24 10:08:50,140 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-24 10:08:50,141 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-24 10:08:50,141 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-24 10:08:50,143 INFO L87 Difference]: Start difference. First operand 133 states and 147 transitions. Second operand has 5 states, 4 states have (on average 2.25) internal successors, (9), 5 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) [2021-10-24 10:08:50,332 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 10:08:50,332 INFO L93 Difference]: Finished difference Result 132 states and 145 transitions. [2021-10-24 10:08:50,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-24 10:08:50,333 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.25) internal successors, (9), 5 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 [2021-10-24 10:08:50,333 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 10:08:50,334 INFO L225 Difference]: With dead ends: 132 [2021-10-24 10:08:50,335 INFO L226 Difference]: Without dead ends: 132 [2021-10-24 10:08:50,336 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 28.4ms TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-10-24 10:08:50,337 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 132 states. [2021-10-24 10:08:50,345 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 132 to 132. [2021-10-24 10:08:50,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 132 states, 91 states have (on average 1.5934065934065933) internal successors, (145), 131 states have internal predecessors, (145), 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) [2021-10-24 10:08:50,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 132 states and 145 transitions. [2021-10-24 10:08:50,349 INFO L78 Accepts]: Start accepts. Automaton has 132 states and 145 transitions. Word has length 9 [2021-10-24 10:08:50,349 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 10:08:50,351 INFO L470 AbstractCegarLoop]: Abstraction has 132 states and 145 transitions. [2021-10-24 10:08:50,352 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.25) internal successors, (9), 5 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) [2021-10-24 10:08:50,352 INFO L276 IsEmpty]: Start isEmpty. Operand 132 states and 145 transitions. [2021-10-24 10:08:50,352 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-10-24 10:08:50,353 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 10:08:50,353 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-24 10:08:50,353 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-10-24 10:08:50,353 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr23REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 60 more)] === [2021-10-24 10:08:50,354 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 10:08:50,354 INFO L82 PathProgramCache]: Analyzing trace with hash -1871606420, now seen corresponding path program 1 times [2021-10-24 10:08:50,354 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-24 10:08:50,356 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1058039477] [2021-10-24 10:08:50,356 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 10:08:50,356 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-24 10:08:50,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 10:08:50,471 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 10:08:50,472 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-24 10:08:50,473 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1058039477] [2021-10-24 10:08:50,473 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1058039477] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-24 10:08:50,473 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-24 10:08:50,474 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-24 10:08:50,474 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [587924852] [2021-10-24 10:08:50,476 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-24 10:08:50,476 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-24 10:08:50,477 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-24 10:08:50,477 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-24 10:08:50,477 INFO L87 Difference]: Start difference. First operand 132 states and 145 transitions. Second operand has 5 states, 4 states have (on average 2.5) internal successors, (10), 5 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:08:50,649 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 10:08:50,650 INFO L93 Difference]: Finished difference Result 131 states and 143 transitions. [2021-10-24 10:08:50,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-24 10:08:50,652 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.5) internal successors, (10), 5 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2021-10-24 10:08:50,652 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 10:08:50,653 INFO L225 Difference]: With dead ends: 131 [2021-10-24 10:08:50,653 INFO L226 Difference]: Without dead ends: 131 [2021-10-24 10:08:50,654 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 25.3ms TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-10-24 10:08:50,655 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 131 states. [2021-10-24 10:08:50,657 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 131 to 131. [2021-10-24 10:08:50,658 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 131 states, 91 states have (on average 1.5714285714285714) internal successors, (143), 130 states have internal predecessors, (143), 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) [2021-10-24 10:08:50,659 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 131 states to 131 states and 143 transitions. [2021-10-24 10:08:50,659 INFO L78 Accepts]: Start accepts. Automaton has 131 states and 143 transitions. Word has length 10 [2021-10-24 10:08:50,660 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 10:08:50,660 INFO L470 AbstractCegarLoop]: Abstraction has 131 states and 143 transitions. [2021-10-24 10:08:50,660 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.5) internal successors, (10), 5 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:08:50,660 INFO L276 IsEmpty]: Start isEmpty. Operand 131 states and 143 transitions. [2021-10-24 10:08:50,661 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-10-24 10:08:50,661 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 10:08:50,661 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-24 10:08:50,661 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-10-24 10:08:50,662 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr24REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 60 more)] === [2021-10-24 10:08:50,662 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 10:08:50,663 INFO L82 PathProgramCache]: Analyzing trace with hash -1871606419, now seen corresponding path program 1 times [2021-10-24 10:08:50,663 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-24 10:08:50,663 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1639250763] [2021-10-24 10:08:50,663 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 10:08:50,664 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-24 10:08:50,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 10:08:50,794 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 10:08:50,795 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-24 10:08:50,795 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1639250763] [2021-10-24 10:08:50,795 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1639250763] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-24 10:08:50,795 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-24 10:08:50,796 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-24 10:08:50,796 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [217860789] [2021-10-24 10:08:50,796 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-24 10:08:50,797 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-24 10:08:50,797 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-24 10:08:50,798 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-24 10:08:50,799 INFO L87 Difference]: Start difference. First operand 131 states and 143 transitions. Second operand has 5 states, 4 states have (on average 2.5) internal successors, (10), 5 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:08:50,972 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 10:08:50,973 INFO L93 Difference]: Finished difference Result 130 states and 141 transitions. [2021-10-24 10:08:50,973 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-24 10:08:50,973 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.5) internal successors, (10), 5 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2021-10-24 10:08:50,974 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 10:08:50,975 INFO L225 Difference]: With dead ends: 130 [2021-10-24 10:08:50,975 INFO L226 Difference]: Without dead ends: 130 [2021-10-24 10:08:50,975 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 31.0ms TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-10-24 10:08:50,976 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 130 states. [2021-10-24 10:08:50,978 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 130 to 130. [2021-10-24 10:08:50,978 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 130 states, 91 states have (on average 1.5494505494505495) internal successors, (141), 129 states have internal predecessors, (141), 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) [2021-10-24 10:08:50,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 130 states to 130 states and 141 transitions. [2021-10-24 10:08:50,980 INFO L78 Accepts]: Start accepts. Automaton has 130 states and 141 transitions. Word has length 10 [2021-10-24 10:08:50,980 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 10:08:50,980 INFO L470 AbstractCegarLoop]: Abstraction has 130 states and 141 transitions. [2021-10-24 10:08:50,980 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.5) internal successors, (10), 5 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:08:50,981 INFO L276 IsEmpty]: Start isEmpty. Operand 130 states and 141 transitions. [2021-10-24 10:08:50,981 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-10-24 10:08:50,981 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 10:08:50,982 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-24 10:08:50,982 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-10-24 10:08:50,982 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr14REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 60 more)] === [2021-10-24 10:08:50,983 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 10:08:50,983 INFO L82 PathProgramCache]: Analyzing trace with hash -2129952249, now seen corresponding path program 1 times [2021-10-24 10:08:50,983 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-24 10:08:50,983 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [809910021] [2021-10-24 10:08:50,984 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 10:08:50,984 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-24 10:08:51,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 10:08:51,131 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 10:08:51,131 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-24 10:08:51,134 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [809910021] [2021-10-24 10:08:51,135 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [809910021] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-24 10:08:51,136 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-24 10:08:51,136 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-10-24 10:08:51,136 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1493837405] [2021-10-24 10:08:51,137 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-10-24 10:08:51,139 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-24 10:08:51,139 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-24 10:08:51,140 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-10-24 10:08:51,140 INFO L87 Difference]: Start difference. First operand 130 states and 141 transitions. Second operand has 8 states, 7 states have (on average 1.5714285714285714) internal successors, (11), 8 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) [2021-10-24 10:08:51,518 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 10:08:51,518 INFO L93 Difference]: Finished difference Result 134 states and 141 transitions. [2021-10-24 10:08:51,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-24 10:08:51,519 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 1.5714285714285714) internal successors, (11), 8 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2021-10-24 10:08:51,519 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 10:08:51,520 INFO L225 Difference]: With dead ends: 134 [2021-10-24 10:08:51,520 INFO L226 Difference]: Without dead ends: 134 [2021-10-24 10:08:51,521 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 104.9ms TimeCoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2021-10-24 10:08:51,521 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 134 states. [2021-10-24 10:08:51,523 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 134 to 129. [2021-10-24 10:08:51,524 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 129 states, 91 states have (on average 1.5384615384615385) internal successors, (140), 128 states have internal predecessors, (140), 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) [2021-10-24 10:08:51,524 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129 states to 129 states and 140 transitions. [2021-10-24 10:08:51,524 INFO L78 Accepts]: Start accepts. Automaton has 129 states and 140 transitions. Word has length 11 [2021-10-24 10:08:51,525 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 10:08:51,525 INFO L470 AbstractCegarLoop]: Abstraction has 129 states and 140 transitions. [2021-10-24 10:08:51,525 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 1.5714285714285714) internal successors, (11), 8 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) [2021-10-24 10:08:51,525 INFO L276 IsEmpty]: Start isEmpty. Operand 129 states and 140 transitions. [2021-10-24 10:08:51,526 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-10-24 10:08:51,526 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 10:08:51,526 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-24 10:08:51,526 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-10-24 10:08:51,527 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr15REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 60 more)] === [2021-10-24 10:08:51,527 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 10:08:51,527 INFO L82 PathProgramCache]: Analyzing trace with hash -2129952248, now seen corresponding path program 1 times [2021-10-24 10:08:51,528 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-24 10:08:51,528 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1878460794] [2021-10-24 10:08:51,528 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 10:08:51,528 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-24 10:08:51,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 10:08:51,686 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 10:08:51,687 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-24 10:08:51,687 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1878460794] [2021-10-24 10:08:51,687 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1878460794] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-24 10:08:51,687 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-24 10:08:51,687 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-10-24 10:08:51,687 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1871569450] [2021-10-24 10:08:51,692 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-10-24 10:08:51,692 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-24 10:08:51,696 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-10-24 10:08:51,697 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2021-10-24 10:08:51,697 INFO L87 Difference]: Start difference. First operand 129 states and 140 transitions. Second operand has 9 states, 8 states have (on average 1.375) 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) [2021-10-24 10:08:52,349 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 10:08:52,349 INFO L93 Difference]: Finished difference Result 129 states and 136 transitions. [2021-10-24 10:08:52,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-10-24 10:08:52,350 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 1.375) 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) Word has length 11 [2021-10-24 10:08:52,350 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 10:08:52,351 INFO L225 Difference]: With dead ends: 129 [2021-10-24 10:08:52,351 INFO L226 Difference]: Without dead ends: 129 [2021-10-24 10:08:52,351 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 279.8ms TimeCoverageRelationStatistics Valid=89, Invalid=217, Unknown=0, NotChecked=0, Total=306 [2021-10-24 10:08:52,352 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 129 states. [2021-10-24 10:08:52,354 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 129 to 110. [2021-10-24 10:08:52,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 110 states, 80 states have (on average 1.5) internal successors, (120), 109 states have internal predecessors, (120), 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) [2021-10-24 10:08:52,355 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 110 states and 120 transitions. [2021-10-24 10:08:52,355 INFO L78 Accepts]: Start accepts. Automaton has 110 states and 120 transitions. Word has length 11 [2021-10-24 10:08:52,355 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 10:08:52,355 INFO L470 AbstractCegarLoop]: Abstraction has 110 states and 120 transitions. [2021-10-24 10:08:52,356 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 1.375) 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) [2021-10-24 10:08:52,356 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 120 transitions. [2021-10-24 10:08:52,356 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-10-24 10:08:52,356 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 10:08:52,356 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-24 10:08:52,357 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-10-24 10:08:52,357 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr27REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 60 more)] === [2021-10-24 10:08:52,357 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 10:08:52,357 INFO L82 PathProgramCache]: Analyzing trace with hash 977701891, now seen corresponding path program 1 times [2021-10-24 10:08:52,358 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-24 10:08:52,358 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [108000171] [2021-10-24 10:08:52,358 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 10:08:52,358 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-24 10:08:52,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 10:08:52,470 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 10:08:52,471 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-24 10:08:52,471 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [108000171] [2021-10-24 10:08:52,471 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [108000171] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-24 10:08:52,471 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-24 10:08:52,471 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-10-24 10:08:52,472 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1114451347] [2021-10-24 10:08:52,472 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-10-24 10:08:52,472 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-24 10:08:52,473 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-24 10:08:52,473 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-10-24 10:08:52,474 INFO L87 Difference]: Start difference. First operand 110 states and 120 transitions. Second operand has 7 states, 6 states have (on average 2.0) internal successors, (12), 7 states have internal predecessors, (12), 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) [2021-10-24 10:08:52,736 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 10:08:52,737 INFO L93 Difference]: Finished difference Result 109 states and 119 transitions. [2021-10-24 10:08:52,737 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-24 10:08:52,737 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 2.0) internal successors, (12), 7 states have internal predecessors, (12), 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 12 [2021-10-24 10:08:52,738 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 10:08:52,739 INFO L225 Difference]: With dead ends: 109 [2021-10-24 10:08:52,739 INFO L226 Difference]: Without dead ends: 109 [2021-10-24 10:08:52,740 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 61.3ms TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2021-10-24 10:08:52,740 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2021-10-24 10:08:52,744 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 109. [2021-10-24 10:08:52,745 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 109 states, 80 states have (on average 1.4875) internal successors, (119), 108 states have internal predecessors, (119), 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) [2021-10-24 10:08:52,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 119 transitions. [2021-10-24 10:08:52,746 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 119 transitions. Word has length 12 [2021-10-24 10:08:52,746 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 10:08:52,746 INFO L470 AbstractCegarLoop]: Abstraction has 109 states and 119 transitions. [2021-10-24 10:08:52,747 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 2.0) internal successors, (12), 7 states have internal predecessors, (12), 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) [2021-10-24 10:08:52,747 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 119 transitions. [2021-10-24 10:08:52,747 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-10-24 10:08:52,748 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 10:08:52,748 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-24 10:08:52,748 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-10-24 10:08:52,748 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr28REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 60 more)] === [2021-10-24 10:08:52,749 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 10:08:52,749 INFO L82 PathProgramCache]: Analyzing trace with hash 977701892, now seen corresponding path program 1 times [2021-10-24 10:08:52,754 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-24 10:08:52,754 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [698175261] [2021-10-24 10:08:52,754 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 10:08:52,755 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-24 10:08:52,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 10:08:52,904 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 10:08:52,905 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-24 10:08:52,905 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [698175261] [2021-10-24 10:08:52,905 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [698175261] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-24 10:08:52,905 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-24 10:08:52,905 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-10-24 10:08:52,906 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1963981424] [2021-10-24 10:08:52,906 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-10-24 10:08:52,906 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-24 10:08:52,907 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-24 10:08:52,907 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-10-24 10:08:52,908 INFO L87 Difference]: Start difference. First operand 109 states and 119 transitions. Second operand has 7 states, 6 states have (on average 2.0) internal successors, (12), 7 states have internal predecessors, (12), 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) [2021-10-24 10:08:53,098 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 10:08:53,098 INFO L93 Difference]: Finished difference Result 108 states and 118 transitions. [2021-10-24 10:08:53,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-24 10:08:53,099 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 2.0) internal successors, (12), 7 states have internal predecessors, (12), 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 12 [2021-10-24 10:08:53,099 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 10:08:53,100 INFO L225 Difference]: With dead ends: 108 [2021-10-24 10:08:53,100 INFO L226 Difference]: Without dead ends: 108 [2021-10-24 10:08:53,101 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 77.3ms TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2021-10-24 10:08:53,101 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108 states. [2021-10-24 10:08:53,103 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108 to 108. [2021-10-24 10:08:53,104 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 108 states, 80 states have (on average 1.475) internal successors, (118), 107 states have internal predecessors, (118), 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) [2021-10-24 10:08:53,105 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 108 states and 118 transitions. [2021-10-24 10:08:53,105 INFO L78 Accepts]: Start accepts. Automaton has 108 states and 118 transitions. Word has length 12 [2021-10-24 10:08:53,105 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 10:08:53,106 INFO L470 AbstractCegarLoop]: Abstraction has 108 states and 118 transitions. [2021-10-24 10:08:53,106 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 2.0) internal successors, (12), 7 states have internal predecessors, (12), 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) [2021-10-24 10:08:53,106 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 118 transitions. [2021-10-24 10:08:53,107 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-10-24 10:08:53,107 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 10:08:53,107 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-24 10:08:53,107 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-10-24 10:08:53,108 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 60 more)] === [2021-10-24 10:08:53,108 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 10:08:53,108 INFO L82 PathProgramCache]: Analyzing trace with hash 1815289415, now seen corresponding path program 1 times [2021-10-24 10:08:53,109 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-24 10:08:53,109 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2128848790] [2021-10-24 10:08:53,109 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 10:08:53,109 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-24 10:08:53,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 10:08:53,216 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 10:08:53,216 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-24 10:08:53,217 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2128848790] [2021-10-24 10:08:53,217 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2128848790] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-24 10:08:53,217 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-24 10:08:53,217 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-10-24 10:08:53,218 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [480242604] [2021-10-24 10:08:53,218 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-10-24 10:08:53,218 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-24 10:08:53,219 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-10-24 10:08:53,219 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2021-10-24 10:08:53,220 INFO L87 Difference]: Start difference. First operand 108 states and 118 transitions. Second operand has 9 states, 9 states have (on average 1.4444444444444444) internal successors, (13), 9 states have internal predecessors, (13), 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) [2021-10-24 10:08:53,702 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 10:08:53,702 INFO L93 Difference]: Finished difference Result 123 states and 130 transitions. [2021-10-24 10:08:53,703 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-10-24 10:08:53,703 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 1.4444444444444444) internal successors, (13), 9 states have internal predecessors, (13), 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 [2021-10-24 10:08:53,703 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 10:08:53,704 INFO L225 Difference]: With dead ends: 123 [2021-10-24 10:08:53,704 INFO L226 Difference]: Without dead ends: 123 [2021-10-24 10:08:53,705 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 183.9ms TimeCoverageRelationStatistics Valid=89, Invalid=217, Unknown=0, NotChecked=0, Total=306 [2021-10-24 10:08:53,705 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 123 states. [2021-10-24 10:08:53,707 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 123 to 106. [2021-10-24 10:08:53,708 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 106 states, 79 states have (on average 1.4683544303797469) internal successors, (116), 105 states have internal predecessors, (116), 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) [2021-10-24 10:08:53,708 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 106 states and 116 transitions. [2021-10-24 10:08:53,709 INFO L78 Accepts]: Start accepts. Automaton has 106 states and 116 transitions. Word has length 13 [2021-10-24 10:08:53,709 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 10:08:53,709 INFO L470 AbstractCegarLoop]: Abstraction has 106 states and 116 transitions. [2021-10-24 10:08:53,709 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 1.4444444444444444) internal successors, (13), 9 states have internal predecessors, (13), 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) [2021-10-24 10:08:53,709 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 116 transitions. [2021-10-24 10:08:53,710 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-10-24 10:08:53,710 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 10:08:53,710 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-24 10:08:53,710 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-10-24 10:08:53,711 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr29ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 60 more)] === [2021-10-24 10:08:53,711 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 10:08:53,711 INFO L82 PathProgramCache]: Analyzing trace with hash -1026143783, now seen corresponding path program 1 times [2021-10-24 10:08:53,711 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-24 10:08:53,712 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1761274245] [2021-10-24 10:08:53,712 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 10:08:53,713 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-24 10:08:53,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 10:08:53,755 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 10:08:53,755 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-24 10:08:53,756 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1761274245] [2021-10-24 10:08:53,756 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1761274245] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-24 10:08:53,756 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-24 10:08:53,756 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-24 10:08:53,757 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1639144051] [2021-10-24 10:08:53,757 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-24 10:08:53,757 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-24 10:08:53,758 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-24 10:08:53,758 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-24 10:08:53,758 INFO L87 Difference]: Start difference. First operand 106 states and 116 transitions. Second operand has 4 states, 4 states have (on average 3.5) internal successors, (14), 3 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) [2021-10-24 10:08:53,886 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 10:08:53,886 INFO L93 Difference]: Finished difference Result 159 states and 164 transitions. [2021-10-24 10:08:53,887 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-24 10:08:53,887 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.5) internal successors, (14), 3 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 14 [2021-10-24 10:08:53,887 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 10:08:53,888 INFO L225 Difference]: With dead ends: 159 [2021-10-24 10:08:53,888 INFO L226 Difference]: Without dead ends: 159 [2021-10-24 10:08:53,889 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 12.7ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-24 10:08:53,889 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 159 states. [2021-10-24 10:08:53,891 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 159 to 104. [2021-10-24 10:08:53,892 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 104 states, 78 states have (on average 1.4615384615384615) internal successors, (114), 103 states have internal predecessors, (114), 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) [2021-10-24 10:08:53,892 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 114 transitions. [2021-10-24 10:08:53,892 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 114 transitions. Word has length 14 [2021-10-24 10:08:53,893 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 10:08:53,893 INFO L470 AbstractCegarLoop]: Abstraction has 104 states and 114 transitions. [2021-10-24 10:08:53,893 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.5) internal successors, (14), 3 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) [2021-10-24 10:08:53,893 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 114 transitions. [2021-10-24 10:08:53,894 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-10-24 10:08:53,894 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 10:08:53,894 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-24 10:08:53,894 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-10-24 10:08:53,894 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr34ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 60 more)] === [2021-10-24 10:08:53,895 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 10:08:53,895 INFO L82 PathProgramCache]: Analyzing trace with hash 2088902450, now seen corresponding path program 1 times [2021-10-24 10:08:53,895 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-24 10:08:53,895 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [856433082] [2021-10-24 10:08:53,896 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 10:08:53,896 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-24 10:08:53,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 10:08:54,408 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 10:08:54,408 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-24 10:08:54,408 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [856433082] [2021-10-24 10:08:54,408 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [856433082] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-24 10:08:54,409 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-24 10:08:54,409 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-10-24 10:08:54,409 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [73058682] [2021-10-24 10:08:54,409 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-10-24 10:08:54,410 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-24 10:08:54,410 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-10-24 10:08:54,410 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2021-10-24 10:08:54,411 INFO L87 Difference]: Start difference. First operand 104 states and 114 transitions. Second operand has 12 states, 12 states have (on average 1.5833333333333333) internal successors, (19), 11 states have internal predecessors, (19), 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) [2021-10-24 10:08:55,115 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 10:08:55,115 INFO L93 Difference]: Finished difference Result 144 states and 149 transitions. [2021-10-24 10:08:55,116 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-10-24 10:08:55,116 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 1.5833333333333333) internal successors, (19), 11 states have internal predecessors, (19), 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 19 [2021-10-24 10:08:55,116 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 10:08:55,117 INFO L225 Difference]: With dead ends: 144 [2021-10-24 10:08:55,117 INFO L226 Difference]: Without dead ends: 144 [2021-10-24 10:08:55,118 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 87 ImplicationChecksByTransitivity, 474.3ms TimeCoverageRelationStatistics Valid=117, Invalid=345, Unknown=0, NotChecked=0, Total=462 [2021-10-24 10:08:55,118 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 144 states. [2021-10-24 10:08:55,121 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 144 to 118. [2021-10-24 10:08:55,121 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 118 states, 92 states have (on average 1.4130434782608696) internal successors, (130), 117 states have internal predecessors, (130), 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) [2021-10-24 10:08:55,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 118 states to 118 states and 130 transitions. [2021-10-24 10:08:55,122 INFO L78 Accepts]: Start accepts. Automaton has 118 states and 130 transitions. Word has length 19 [2021-10-24 10:08:55,122 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 10:08:55,123 INFO L470 AbstractCegarLoop]: Abstraction has 118 states and 130 transitions. [2021-10-24 10:08:55,123 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 1.5833333333333333) internal successors, (19), 11 states have internal predecessors, (19), 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) [2021-10-24 10:08:55,123 INFO L276 IsEmpty]: Start isEmpty. Operand 118 states and 130 transitions. [2021-10-24 10:08:55,131 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-10-24 10:08:55,131 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 10:08:55,131 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-24 10:08:55,132 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-10-24 10:08:55,132 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr39ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 60 more)] === [2021-10-24 10:08:55,132 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 10:08:55,132 INFO L82 PathProgramCache]: Analyzing trace with hash 2088869679, now seen corresponding path program 1 times [2021-10-24 10:08:55,133 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-24 10:08:55,133 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1696067626] [2021-10-24 10:08:55,133 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 10:08:55,133 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-24 10:08:55,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 10:08:55,202 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 10:08:55,203 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-24 10:08:55,203 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1696067626] [2021-10-24 10:08:55,206 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1696067626] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-24 10:08:55,206 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-24 10:08:55,206 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-24 10:08:55,207 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1531008544] [2021-10-24 10:08:55,207 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-24 10:08:55,207 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-24 10:08:55,208 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-24 10:08:55,208 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-24 10:08:55,209 INFO L87 Difference]: Start difference. First operand 118 states and 130 transitions. Second operand has 5 states, 5 states have (on average 3.8) internal successors, (19), 5 states have internal predecessors, (19), 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) [2021-10-24 10:08:55,331 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 10:08:55,331 INFO L93 Difference]: Finished difference Result 116 states and 127 transitions. [2021-10-24 10:08:55,336 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-24 10:08:55,337 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.8) internal successors, (19), 5 states have internal predecessors, (19), 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 19 [2021-10-24 10:08:55,337 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 10:08:55,338 INFO L225 Difference]: With dead ends: 116 [2021-10-24 10:08:55,338 INFO L226 Difference]: Without dead ends: 116 [2021-10-24 10:08:55,339 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 27.7ms TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-10-24 10:08:55,339 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116 states. [2021-10-24 10:08:55,342 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116 to 116. [2021-10-24 10:08:55,342 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 116 states, 91 states have (on average 1.3956043956043955) internal successors, (127), 115 states have internal predecessors, (127), 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) [2021-10-24 10:08:55,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116 states to 116 states and 127 transitions. [2021-10-24 10:08:55,343 INFO L78 Accepts]: Start accepts. Automaton has 116 states and 127 transitions. Word has length 19 [2021-10-24 10:08:55,344 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 10:08:55,344 INFO L470 AbstractCegarLoop]: Abstraction has 116 states and 127 transitions. [2021-10-24 10:08:55,344 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.8) internal successors, (19), 5 states have internal predecessors, (19), 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) [2021-10-24 10:08:55,344 INFO L276 IsEmpty]: Start isEmpty. Operand 116 states and 127 transitions. [2021-10-24 10:08:55,345 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2021-10-24 10:08:55,345 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 10:08:55,346 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-24 10:08:55,346 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-10-24 10:08:55,346 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr30REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 60 more)] === [2021-10-24 10:08:55,347 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 10:08:55,347 INFO L82 PathProgramCache]: Analyzing trace with hash 1685661151, now seen corresponding path program 1 times [2021-10-24 10:08:55,347 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-24 10:08:55,347 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [373575093] [2021-10-24 10:08:55,348 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 10:08:55,348 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-24 10:08:55,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 10:08:55,543 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 10:08:55,543 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-24 10:08:55,543 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [373575093] [2021-10-24 10:08:55,543 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [373575093] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-24 10:08:55,544 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [429225450] [2021-10-24 10:08:55,544 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 10:08:55,544 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-24 10:08:55,544 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88c995ab-7ae0-42f4-b91c-7631550c27c1/bin/utaipan-9zjyvhn0QE/z3 [2021-10-24 10:08:55,553 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88c995ab-7ae0-42f4-b91c-7631550c27c1/bin/utaipan-9zjyvhn0QE/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-24 10:08:55,557 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88c995ab-7ae0-42f4-b91c-7631550c27c1/bin/utaipan-9zjyvhn0QE/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-10-24 10:08:55,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 10:08:55,652 INFO L263 TraceCheckSpWp]: Trace formula consists of 144 conjuncts, 26 conjunts are in the unsatisfiable core [2021-10-24 10:08:55,661 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-24 10:08:55,925 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-10-24 10:08:55,926 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2021-10-24 10:08:55,988 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2021-10-24 10:08:56,123 INFO L354 Elim1Store]: treesize reduction 29, result has 19.4 percent of original size [2021-10-24 10:08:56,124 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 2 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 24 [2021-10-24 10:08:56,383 INFO L354 Elim1Store]: treesize reduction 74, result has 23.7 percent of original size [2021-10-24 10:08:56,384 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 3 new quantified variables, introduced 3 case distinctions, treesize of input 62 treesize of output 53 [2021-10-24 10:08:56,568 INFO L354 Elim1Store]: treesize reduction 5, result has 37.5 percent of original size [2021-10-24 10:08:56,569 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 31 treesize of output 22 [2021-10-24 10:08:56,576 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 10:08:56,576 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-24 10:08:56,721 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:08:56,726 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-10-24 10:08:56,738 INFO L354 Elim1Store]: treesize reduction 5, result has 77.3 percent of original size [2021-10-24 10:08:56,738 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 32 treesize of output 31 [2021-10-24 10:09:11,386 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 3970 treesize of output 3906 [2021-10-24 10:09:12,202 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: BigInteger out of long range [2021-10-24 10:09:12,202 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [624179420] [2021-10-24 10:09:12,229 INFO L159 IcfgInterpreter]: Started Sifa with 21 locations of interest [2021-10-24 10:09:12,229 INFO L166 IcfgInterpreter]: Building call graph [2021-10-24 10:09:12,243 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-10-24 10:09:12,249 INFO L176 IcfgInterpreter]: Starting interpretation [2021-10-24 10:09:12,250 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-10-24 10:09:12,310 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:09:12,313 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-24 10:09:12,315 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:09:12,316 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-10-24 10:09:12,317 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-24 10:09:12,318 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:09:12,319 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-10-24 10:09:12,321 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 131 [2021-10-24 10:09:12,339 INFO L446 ElimStorePlain]: Different costs {0=[|v_#length_88|], 21=[|v_#valid_103|]} [2021-10-24 10:09:12,349 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:09:12,350 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:09:12,352 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:09:12,353 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 9 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 16 [2021-10-24 10:09:12,354 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:09:12,355 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-10-24 10:09:12,355 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:09:12,357 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-10-24 10:09:12,357 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-10-24 10:09:12,359 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 10:09:12,375 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:09:12,380 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:09:12,381 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:09:12,383 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:09:12,385 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:09:12,386 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:09:12,388 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:09:12,401 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:09:12,402 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:09:12,403 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:09:12,413 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 50 [2021-10-24 10:09:12,414 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:09:12,418 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-10-24 10:09:12,420 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:09:12,421 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-10-24 10:09:12,422 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-10-24 10:09:12,423 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 10:09:12,440 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:09:12,443 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:09:12,446 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 111 [2021-10-24 10:09:12,448 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-10-24 10:09:12,448 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:128, output treesize:111 [2021-10-24 10:09:12,457 INFO L180 QuantifierPusher]: treesize reduction 3, result has 98.1 percent of original size [2021-10-24 10:09:12,467 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-24 10:09:12,467 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:09:12,468 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-10-24 10:09:12,469 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-24 10:09:12,469 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:09:12,470 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-10-24 10:09:12,471 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-24 10:09:12,471 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:09:12,472 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-10-24 10:09:12,476 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 159 [2021-10-24 10:09:12,493 INFO L446 ElimStorePlain]: Different costs {0=[|v_#memory_$Pointer$.base_71|, |v_#memory_$Pointer$.offset_68|], 6=[|v_#memory_int_61|]} [2021-10-24 10:09:12,502 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 11 treesize of output 7 [2021-10-24 10:09:12,503 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:09:12,504 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-10-24 10:09:12,504 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:09:12,505 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-10-24 10:09:12,505 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-10-24 10:09:12,506 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 10:09:12,515 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:09:12,525 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 11 treesize of output 7 [2021-10-24 10:09:12,526 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:09:12,527 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-10-24 10:09:12,527 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:09:12,528 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-10-24 10:09:12,528 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-10-24 10:09:12,529 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 10:09:12,542 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:09:12,551 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:09:12,552 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:09:12,554 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 23 [2021-10-24 10:09:12,558 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:09:12,560 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-10-24 10:09:12,561 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:09:12,561 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-10-24 10:09:12,562 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-10-24 10:09:12,563 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 10:09:12,576 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:09:12,578 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:09:12,583 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 132 [2021-10-24 10:09:12,583 INFO L550 ElimStorePlain]: Start of recursive call 1: 3 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-10-24 10:09:12,584 INFO L247 ElimStorePlain]: Needed 4 recursive calls to eliminate 3 variables, input treesize:155, output treesize:132 [2021-10-24 10:09:12,593 INFO L180 QuantifierPusher]: treesize reduction 12, result has 93.7 percent of original size [2021-10-24 10:09:12,595 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-24 10:09:12,595 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:09:12,596 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-10-24 10:09:12,597 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-24 10:09:12,598 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:09:12,598 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-10-24 10:09:12,599 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-24 10:09:12,600 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:09:12,601 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-10-24 10:09:12,605 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 183 [2021-10-24 10:09:12,611 INFO L446 ElimStorePlain]: Different costs {2=[|v_#memory_$Pointer$.base_72|, |v_#memory_$Pointer$.offset_69|], 6=[|v_#memory_int_62|]} [2021-10-24 10:09:12,621 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:09:12,622 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2021-10-24 10:09:12,623 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:09:12,625 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-10-24 10:09:12,625 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:09:12,626 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-10-24 10:09:12,626 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-10-24 10:09:12,627 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 10:09:12,639 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:09:12,649 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:09:12,650 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2021-10-24 10:09:12,651 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:09:12,653 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-10-24 10:09:12,653 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:09:12,654 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-10-24 10:09:12,654 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-10-24 10:09:12,655 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 10:09:12,665 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:09:12,673 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:09:12,675 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:09:12,676 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 23 [2021-10-24 10:09:12,677 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:09:12,679 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-10-24 10:09:12,680 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:09:12,681 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-10-24 10:09:12,681 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-10-24 10:09:12,682 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 10:09:12,690 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:09:12,693 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:09:12,696 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 150 [2021-10-24 10:09:12,697 INFO L550 ElimStorePlain]: Start of recursive call 1: 3 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-10-24 10:09:12,698 INFO L247 ElimStorePlain]: Needed 4 recursive calls to eliminate 3 variables, input treesize:177, output treesize:150 [2021-10-24 10:09:12,711 INFO L180 QuantifierPusher]: treesize reduction 12, result has 94.5 percent of original size [2021-10-24 10:09:12,713 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-24 10:09:12,713 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:09:12,714 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-10-24 10:09:12,720 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-24 10:09:12,727 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:09:12,728 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-10-24 10:09:12,730 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-24 10:09:12,730 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:09:12,731 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-10-24 10:09:12,738 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 213 [2021-10-24 10:09:12,755 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:09:12,757 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:09:12,758 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 32 [2021-10-24 10:09:12,759 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:09:12,762 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-10-24 10:09:12,763 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:09:12,763 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-10-24 10:09:12,764 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-10-24 10:09:12,764 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 10:09:12,774 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:09:12,788 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:09:12,789 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:09:12,791 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:09:12,793 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 23 [2021-10-24 10:09:12,793 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:09:12,795 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-10-24 10:09:12,796 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:09:12,796 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-10-24 10:09:12,797 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-10-24 10:09:12,797 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 10:09:12,806 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:09:12,817 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:09:12,818 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:09:12,819 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:09:12,821 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 23 [2021-10-24 10:09:12,822 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:09:12,825 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-10-24 10:09:12,825 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:09:12,826 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-10-24 10:09:12,826 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-10-24 10:09:12,827 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 10:09:12,835 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:09:12,843 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:09:12,851 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 165 [2021-10-24 10:09:12,852 INFO L550 ElimStorePlain]: Start of recursive call 1: 3 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-10-24 10:09:12,852 INFO L247 ElimStorePlain]: Needed 4 recursive calls to eliminate 3 variables, input treesize:207, output treesize:165 [2021-10-24 10:09:12,870 INFO L180 QuantifierPusher]: treesize reduction 8, result has 95.5 percent of original size [2021-10-24 10:09:12,878 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 165 [2021-10-24 10:09:12,893 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:09:12,895 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-24 10:09:12,896 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:09:12,896 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-10-24 10:09:12,897 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-24 10:09:12,898 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:09:12,899 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-10-24 10:09:12,899 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-24 10:09:12,900 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:09:12,901 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-10-24 10:09:12,902 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-24 10:09:12,903 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:09:12,904 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-10-24 10:09:12,906 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-24 10:09:12,907 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:09:12,908 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-10-24 10:09:12,917 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 270 [2021-10-24 10:09:12,928 INFO L446 ElimStorePlain]: Different costs {10=[|v_#length_89|], 21=[|v_#valid_104|]} [2021-10-24 10:09:12,942 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:09:12,947 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:09:12,949 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:09:12,951 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:09:12,953 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:09:12,961 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-10-24 10:09:12,962 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 9 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 36 treesize of output 40 [2021-10-24 10:09:12,963 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:09:12,966 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-10-24 10:09:12,967 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:09:12,967 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-10-24 10:09:12,968 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-10-24 10:09:12,969 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 10:09:12,981 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:09:12,997 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:09:12,999 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:09:13,001 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:09:13,003 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:09:13,009 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:09:13,047 INFO L354 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2021-10-24 10:09:13,048 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 9 disjoint index pairs (out of 15 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 37 treesize of output 45 [2021-10-24 10:09:13,049 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:09:13,053 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-10-24 10:09:13,054 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:09:13,055 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-10-24 10:09:13,055 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-10-24 10:09:13,056 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 10:09:13,083 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:09:13,086 INFO L446 ElimStorePlain]: Different costs {6=[|v_#memory_$Pointer$.base_74|, |v_#memory_$Pointer$.offset_71|], 12=[|v_#memory_int_64|]} [2021-10-24 10:09:13,099 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:09:13,101 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:09:13,103 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:09:13,105 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 23 [2021-10-24 10:09:13,106 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:09:13,110 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-10-24 10:09:13,113 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:09:13,113 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-10-24 10:09:13,114 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-10-24 10:09:13,115 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 10:09:13,128 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:09:13,143 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:09:13,145 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:09:13,146 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:09:13,147 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 23 [2021-10-24 10:09:13,148 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:09:13,150 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-10-24 10:09:13,151 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:09:13,151 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-10-24 10:09:13,152 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2021-10-24 10:09:13,153 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 10:09:13,166 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:09:13,178 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:09:13,180 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:09:13,180 INFO L173 IndexEqualityManager]: detected equality via solver [2021-10-24 10:09:13,183 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 35 [2021-10-24 10:09:13,184 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:09:13,186 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-10-24 10:09:13,187 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:09:13,188 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-10-24 10:09:13,188 INFO L550 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2021-10-24 10:09:13,189 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 10:09:13,200 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:09:13,213 INFO L180 QuantifierPusher]: treesize reduction 3, result has 98.4 percent of original size [2021-10-24 10:09:13,217 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 190 [2021-10-24 10:09:13,218 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, 3 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-10-24 10:09:13,219 INFO L247 ElimStorePlain]: Needed 6 recursive calls to eliminate 5 variables, input treesize:260, output treesize:190 [2021-10-24 10:09:13,228 INFO L180 QuantifierPusher]: treesize reduction 5, result has 97.9 percent of original size [2021-10-24 10:09:13,230 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-24 10:09:13,231 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:09:13,231 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-10-24 10:09:13,232 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-24 10:09:13,233 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:09:13,234 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-10-24 10:09:13,240 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-24 10:09:13,240 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:09:13,241 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-24 10:09:13,242 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:09:13,243 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-10-24 10:09:13,244 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-10-24 10:09:13,244 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-24 10:09:13,245 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:09:13,247 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-24 10:09:13,248 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:09:13,249 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-10-24 10:09:13,249 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-10-24 10:09:13,250 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-24 10:09:13,251 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:09:13,252 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-10-24 10:09:13,256 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 240 [2021-10-24 10:09:13,262 INFO L446 ElimStorePlain]: Different costs {6=[|v_#memory_$Pointer$.base_75|, |v_#memory_$Pointer$.offset_72|], 12=[|v_#memory_int_65|]} [2021-10-24 10:09:13,274 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:09:13,276 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 23 [2021-10-24 10:09:13,277 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:09:13,279 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-10-24 10:09:13,280 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:09:13,281 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-10-24 10:09:13,281 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-10-24 10:09:13,282 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 10:09:13,294 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:09:13,306 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:09:13,308 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 23 [2021-10-24 10:09:13,309 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:09:13,312 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-10-24 10:09:13,313 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:09:13,314 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-10-24 10:09:13,315 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-10-24 10:09:13,315 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 10:09:13,328 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:09:13,339 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:09:13,340 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:09:13,341 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:09:13,343 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 35 [2021-10-24 10:09:13,344 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:09:13,346 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-10-24 10:09:13,347 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:09:13,348 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-10-24 10:09:13,348 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-10-24 10:09:13,349 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 10:09:13,359 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:09:13,363 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:09:13,367 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 210 [2021-10-24 10:09:13,368 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 3 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-10-24 10:09:13,368 INFO L247 ElimStorePlain]: Needed 4 recursive calls to eliminate 4 variables, input treesize:234, output treesize:210 [2021-10-24 10:09:13,384 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:09:13,393 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-24 10:09:13,394 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:09:13,395 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-24 10:09:13,395 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:09:13,396 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-10-24 10:09:13,397 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-10-24 10:09:13,397 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-24 10:09:13,398 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:09:13,399 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-24 10:09:13,400 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:09:13,401 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 130 [2021-10-24 10:09:13,402 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 131 [2021-10-24 10:09:13,402 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-24 10:09:13,403 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:09:13,404 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-24 10:09:13,405 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:09:13,406 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 164 [2021-10-24 10:09:13,407 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 165 [2021-10-24 10:09:13,407 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-24 10:09:13,408 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:09:13,409 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 214 [2021-10-24 10:09:13,412 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 334 [2021-10-24 10:09:13,427 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:09:13,428 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:09:13,429 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 130 treesize of output 107 [2021-10-24 10:09:13,430 INFO L180 QuantifierPusher]: treesize reduction 5, result has 95.4 percent of original size [2021-10-24 10:09:13,432 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 83 [2021-10-24 10:09:13,433 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:09:13,433 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 83 [2021-10-24 10:09:13,434 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-10-24 10:09:13,434 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 10:09:13,444 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:09:13,453 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:09:13,455 INFO L173 IndexEqualityManager]: detected equality via solver [2021-10-24 10:09:13,467 INFO L354 Elim1Store]: treesize reduction 19, result has 32.1 percent of original size [2021-10-24 10:09:13,468 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 1 case distinctions, treesize of input 126 treesize of output 78 [2021-10-24 10:09:13,470 INFO L180 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-10-24 10:09:13,473 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 100 [2021-10-24 10:09:13,474 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:09:13,475 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 100 [2021-10-24 10:09:13,475 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-10-24 10:09:13,476 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 10:09:13,496 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:09:13,507 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:09:13,508 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:09:13,510 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:09:13,511 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 53 treesize of output 35 [2021-10-24 10:09:13,512 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:09:13,515 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-10-24 10:09:13,516 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:09:13,516 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-10-24 10:09:13,517 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-10-24 10:09:13,517 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 10:09:13,530 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:09:13,533 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:09:13,536 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 232 [2021-10-24 10:09:13,537 INFO L550 ElimStorePlain]: Start of recursive call 1: 3 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-10-24 10:09:13,538 INFO L247 ElimStorePlain]: Needed 4 recursive calls to eliminate 3 variables, input treesize:332, output treesize:232 [2021-10-24 10:09:13,553 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:09:13,570 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-24 10:09:13,571 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:09:13,572 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-24 10:09:13,573 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:09:13,573 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-10-24 10:09:13,574 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-10-24 10:09:13,575 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-24 10:09:13,576 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:09:13,578 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-24 10:09:13,579 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:09:13,580 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 146 [2021-10-24 10:09:13,581 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 147 [2021-10-24 10:09:13,581 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-24 10:09:13,582 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:09:13,584 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-24 10:09:13,585 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:09:13,586 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 191 [2021-10-24 10:09:13,587 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 192 [2021-10-24 10:09:13,589 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-24 10:09:13,590 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:09:13,592 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 232 [2021-10-24 10:09:13,597 INFO L185 QuantifierPusher]: treesize reduction 6, result has 98.3 percent of original size 341 [2021-10-24 10:09:13,615 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:09:13,617 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:09:13,618 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:09:13,620 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:09:13,621 INFO L173 IndexEqualityManager]: detected equality via solver [2021-10-24 10:09:13,627 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-10-24 10:09:13,628 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 191 treesize of output 139 [2021-10-24 10:09:13,629 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:09:13,633 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 152 [2021-10-24 10:09:13,634 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:09:13,635 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 152 [2021-10-24 10:09:13,635 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-10-24 10:09:13,636 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 10:09:13,648 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:09:13,660 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:09:13,677 INFO L354 Elim1Store]: treesize reduction 31, result has 26.2 percent of original size [2021-10-24 10:09:13,678 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 1 case distinctions, treesize of input 107 treesize of output 95 [2021-10-24 10:09:13,679 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:09:13,682 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 68 [2021-10-24 10:09:13,683 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:09:13,683 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 68 [2021-10-24 10:09:13,684 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-10-24 10:09:13,684 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 10:09:13,696 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:09:13,707 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:09:13,709 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:09:13,710 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:09:13,711 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 51 treesize of output 52 [2021-10-24 10:09:13,712 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:09:13,714 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-10-24 10:09:13,715 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:09:13,716 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-10-24 10:09:13,716 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-10-24 10:09:13,717 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 10:09:13,728 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:09:13,733 INFO L180 QuantifierPusher]: treesize reduction 6, result has 97.7 percent of original size [2021-10-24 10:09:13,736 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 253 [2021-10-24 10:09:13,737 INFO L550 ElimStorePlain]: Start of recursive call 1: 3 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-10-24 10:09:13,738 INFO L247 ElimStorePlain]: Needed 4 recursive calls to eliminate 3 variables, input treesize:345, output treesize:253 [2021-10-24 10:09:13,783 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:09:13,789 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 289 [2021-10-24 10:09:13,796 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:09:13,802 INFO L185 QuantifierPusher]: treesize reduction 10, result has 96.6 percent of original size 288 [2021-10-24 10:09:13,810 INFO L180 QuantifierPusher]: treesize reduction 22, result has 93.2 percent of original size [2021-10-24 10:09:13,818 INFO L185 QuantifierPusher]: treesize reduction 288, result has 0.3 percent of original size 1 [2021-10-24 10:09:13,831 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:09:13,836 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 289 [2021-10-24 10:09:13,842 INFO L180 IcfgInterpreter]: Interpretation finished [2021-10-24 10:09:17,788 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSifa [624179420] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-24 10:09:17,788 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-10-24 10:09:17,788 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [10] total 23 [2021-10-24 10:09:17,789 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1002290064] [2021-10-24 10:09:17,789 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-10-24 10:09:17,790 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-24 10:09:17,791 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-10-24 10:09:17,791 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=253, Invalid=1000, Unknown=7, NotChecked=0, Total=1260 [2021-10-24 10:09:17,792 INFO L87 Difference]: Start difference. First operand 116 states and 127 transitions. Second operand has 14 states, 14 states have (on average 1.5) internal successors, (21), 13 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) [2021-10-24 10:09:18,355 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 10:09:18,355 INFO L93 Difference]: Finished difference Result 124 states and 130 transitions. [2021-10-24 10:09:18,355 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-10-24 10:09:18,356 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 1.5) internal successors, (21), 13 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 [2021-10-24 10:09:18,356 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 10:09:18,357 INFO L225 Difference]: With dead ends: 124 [2021-10-24 10:09:18,357 INFO L226 Difference]: Without dead ends: 124 [2021-10-24 10:09:18,358 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 29 SyntacticMatches, 4 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 399 ImplicationChecksByTransitivity, 18697.4ms TimeCoverageRelationStatistics Valid=253, Invalid=1000, Unknown=7, NotChecked=0, Total=1260 [2021-10-24 10:09:18,360 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 124 states. [2021-10-24 10:09:18,362 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 124 to 114. [2021-10-24 10:09:18,363 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 114 states, 89 states have (on average 1.3932584269662922) internal successors, (124), 113 states have internal predecessors, (124), 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) [2021-10-24 10:09:18,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 124 transitions. [2021-10-24 10:09:18,364 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 124 transitions. Word has length 21 [2021-10-24 10:09:18,364 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 10:09:18,365 INFO L470 AbstractCegarLoop]: Abstraction has 114 states and 124 transitions. [2021-10-24 10:09:18,365 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 1.5) internal successors, (21), 13 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) [2021-10-24 10:09:18,365 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 124 transitions. [2021-10-24 10:09:18,366 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2021-10-24 10:09:18,366 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 10:09:18,367 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-24 10:09:18,414 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88c995ab-7ae0-42f4-b91c-7631550c27c1/bin/utaipan-9zjyvhn0QE/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-10-24 10:09:18,584 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88c995ab-7ae0-42f4-b91c-7631550c27c1/bin/utaipan-9zjyvhn0QE/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-24 10:09:18,585 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr42REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 60 more)] === [2021-10-24 10:09:18,585 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 10:09:18,585 INFO L82 PathProgramCache]: Analyzing trace with hash 1654168128, now seen corresponding path program 1 times [2021-10-24 10:09:18,585 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-24 10:09:18,585 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [192532005] [2021-10-24 10:09:18,585 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 10:09:18,585 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-24 10:09:18,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 10:09:18,771 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 10:09:18,772 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-24 10:09:18,772 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [192532005] [2021-10-24 10:09:18,773 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [192532005] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-24 10:09:18,773 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-24 10:09:18,773 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-10-24 10:09:18,773 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [235196988] [2021-10-24 10:09:18,774 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-10-24 10:09:18,774 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-24 10:09:18,776 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-10-24 10:09:18,777 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2021-10-24 10:09:18,777 INFO L87 Difference]: Start difference. First operand 114 states and 124 transitions. Second operand has 9 states, 8 states have (on average 2.625) internal successors, (21), 9 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) [2021-10-24 10:09:19,100 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 10:09:19,101 INFO L93 Difference]: Finished difference Result 137 states and 141 transitions. [2021-10-24 10:09:19,101 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-24 10:09:19,101 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 2.625) internal successors, (21), 9 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 [2021-10-24 10:09:19,101 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 10:09:19,102 INFO L225 Difference]: With dead ends: 137 [2021-10-24 10:09:19,102 INFO L226 Difference]: Without dead ends: 137 [2021-10-24 10:09:19,103 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 144.7ms TimeCoverageRelationStatistics Valid=56, Invalid=126, Unknown=0, NotChecked=0, Total=182 [2021-10-24 10:09:19,103 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 137 states. [2021-10-24 10:09:19,106 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 137 to 119. [2021-10-24 10:09:19,107 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 119 states, 94 states have (on average 1.3829787234042554) internal successors, (130), 118 states have internal predecessors, (130), 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) [2021-10-24 10:09:19,108 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 119 states and 130 transitions. [2021-10-24 10:09:19,108 INFO L78 Accepts]: Start accepts. Automaton has 119 states and 130 transitions. Word has length 21 [2021-10-24 10:09:19,108 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 10:09:19,108 INFO L470 AbstractCegarLoop]: Abstraction has 119 states and 130 transitions. [2021-10-24 10:09:19,109 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 2.625) internal successors, (21), 9 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) [2021-10-24 10:09:19,109 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states and 130 transitions. [2021-10-24 10:09:19,110 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2021-10-24 10:09:19,110 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 10:09:19,110 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-24 10:09:19,110 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2021-10-24 10:09:19,110 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr43REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 60 more)] === [2021-10-24 10:09:19,111 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 10:09:19,111 INFO L82 PathProgramCache]: Analyzing trace with hash 1654168129, now seen corresponding path program 1 times [2021-10-24 10:09:19,111 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-24 10:09:19,112 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [665520906] [2021-10-24 10:09:19,112 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 10:09:19,112 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-24 10:09:19,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 10:09:19,324 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 10:09:19,324 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-24 10:09:19,324 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [665520906] [2021-10-24 10:09:19,325 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [665520906] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-24 10:09:19,325 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-24 10:09:19,325 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-10-24 10:09:19,325 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [16019728] [2021-10-24 10:09:19,325 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-10-24 10:09:19,326 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-24 10:09:19,326 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-10-24 10:09:19,326 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2021-10-24 10:09:19,327 INFO L87 Difference]: Start difference. First operand 119 states and 130 transitions. Second operand has 9 states, 8 states have (on average 2.625) internal successors, (21), 9 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) [2021-10-24 10:09:19,657 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 10:09:19,657 INFO L93 Difference]: Finished difference Result 141 states and 145 transitions. [2021-10-24 10:09:19,657 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-24 10:09:19,657 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 2.625) internal successors, (21), 9 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 [2021-10-24 10:09:19,658 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 10:09:19,658 INFO L225 Difference]: With dead ends: 141 [2021-10-24 10:09:19,659 INFO L226 Difference]: Without dead ends: 141 [2021-10-24 10:09:19,659 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 118.5ms TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2021-10-24 10:09:19,659 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 141 states. [2021-10-24 10:09:19,662 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 141 to 119. [2021-10-24 10:09:19,662 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 119 states, 94 states have (on average 1.372340425531915) internal successors, (129), 118 states have internal predecessors, (129), 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) [2021-10-24 10:09:19,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 119 states and 129 transitions. [2021-10-24 10:09:19,663 INFO L78 Accepts]: Start accepts. Automaton has 119 states and 129 transitions. Word has length 21 [2021-10-24 10:09:19,664 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 10:09:19,664 INFO L470 AbstractCegarLoop]: Abstraction has 119 states and 129 transitions. [2021-10-24 10:09:19,664 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 2.625) internal successors, (21), 9 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) [2021-10-24 10:09:19,664 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states and 129 transitions. [2021-10-24 10:09:19,665 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-10-24 10:09:19,665 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 10:09:19,666 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-24 10:09:19,666 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2021-10-24 10:09:19,666 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr44ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 60 more)] === [2021-10-24 10:09:19,667 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 10:09:19,667 INFO L82 PathProgramCache]: Analyzing trace with hash 517676064, now seen corresponding path program 1 times [2021-10-24 10:09:19,667 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-24 10:09:19,667 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1410591916] [2021-10-24 10:09:19,668 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 10:09:19,668 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-24 10:09:19,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-24 10:09:19,695 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-24 10:09:19,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-24 10:09:19,794 INFO L133 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2021-10-24 10:09:19,794 INFO L626 BasicCegarLoop]: Counterexample is feasible [2021-10-24 10:09:19,795 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr44ASSERT_VIOLATIONMEMORY_LEAK [2021-10-24 10:09:19,797 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0REQUIRES_VIOLATION [2021-10-24 10:09:19,798 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1REQUIRES_VIOLATION [2021-10-24 10:09:19,798 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2REQUIRES_VIOLATION [2021-10-24 10:09:19,798 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3REQUIRES_VIOLATION [2021-10-24 10:09:19,799 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4REQUIRES_VIOLATION [2021-10-24 10:09:19,799 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5REQUIRES_VIOLATION [2021-10-24 10:09:19,799 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6REQUIRES_VIOLATION [2021-10-24 10:09:19,800 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7REQUIRES_VIOLATION [2021-10-24 10:09:19,800 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8REQUIRES_VIOLATION [2021-10-24 10:09:19,800 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9REQUIRES_VIOLATION [2021-10-24 10:09:19,801 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10REQUIRES_VIOLATION [2021-10-24 10:09:19,801 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr11REQUIRES_VIOLATION [2021-10-24 10:09:19,801 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr12REQUIRES_VIOLATION [2021-10-24 10:09:19,801 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr13REQUIRES_VIOLATION [2021-10-24 10:09:19,801 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr14REQUIRES_VIOLATION [2021-10-24 10:09:19,802 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr15REQUIRES_VIOLATION [2021-10-24 10:09:19,802 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK [2021-10-24 10:09:19,802 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr17REQUIRES_VIOLATION [2021-10-24 10:09:19,802 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr18REQUIRES_VIOLATION [2021-10-24 10:09:19,803 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr19REQUIRES_VIOLATION [2021-10-24 10:09:19,803 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr20REQUIRES_VIOLATION [2021-10-24 10:09:19,803 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr21REQUIRES_VIOLATION [2021-10-24 10:09:19,803 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr22REQUIRES_VIOLATION [2021-10-24 10:09:19,804 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr23REQUIRES_VIOLATION [2021-10-24 10:09:19,804 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr24REQUIRES_VIOLATION [2021-10-24 10:09:19,804 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr25REQUIRES_VIOLATION [2021-10-24 10:09:19,804 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr26REQUIRES_VIOLATION [2021-10-24 10:09:19,805 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr27REQUIRES_VIOLATION [2021-10-24 10:09:19,805 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr28REQUIRES_VIOLATION [2021-10-24 10:09:19,805 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr29ASSERT_VIOLATIONMEMORY_LEAK [2021-10-24 10:09:19,805 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr30REQUIRES_VIOLATION [2021-10-24 10:09:19,805 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr31REQUIRES_VIOLATION [2021-10-24 10:09:19,806 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr32REQUIRES_VIOLATION [2021-10-24 10:09:19,806 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr33REQUIRES_VIOLATION [2021-10-24 10:09:19,806 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr34ASSERT_VIOLATIONMEMORY_LEAK [2021-10-24 10:09:19,806 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr35REQUIRES_VIOLATION [2021-10-24 10:09:19,807 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr36REQUIRES_VIOLATION [2021-10-24 10:09:19,807 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr37REQUIRES_VIOLATION [2021-10-24 10:09:19,807 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr38REQUIRES_VIOLATION [2021-10-24 10:09:19,807 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr39ASSERT_VIOLATIONMEMORY_LEAK [2021-10-24 10:09:19,808 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr40REQUIRES_VIOLATION [2021-10-24 10:09:19,808 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr41REQUIRES_VIOLATION [2021-10-24 10:09:19,808 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr42REQUIRES_VIOLATION [2021-10-24 10:09:19,808 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr43REQUIRES_VIOLATION [2021-10-24 10:09:19,808 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr45REQUIRES_VIOLATION [2021-10-24 10:09:19,809 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr46REQUIRES_VIOLATION [2021-10-24 10:09:19,809 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr47REQUIRES_VIOLATION [2021-10-24 10:09:19,809 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr48REQUIRES_VIOLATION [2021-10-24 10:09:19,809 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr49ASSERT_VIOLATIONMEMORY_FREE [2021-10-24 10:09:19,810 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr50ASSERT_VIOLATIONMEMORY_FREE [2021-10-24 10:09:19,810 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr51ASSERT_VIOLATIONMEMORY_FREE [2021-10-24 10:09:19,810 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr52REQUIRES_VIOLATION [2021-10-24 10:09:19,810 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr53REQUIRES_VIOLATION [2021-10-24 10:09:19,811 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr54ASSERT_VIOLATIONMEMORY_LEAK [2021-10-24 10:09:19,811 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr55REQUIRES_VIOLATION [2021-10-24 10:09:19,811 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr56REQUIRES_VIOLATION [2021-10-24 10:09:19,816 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr57ASSERT_VIOLATIONMEMORY_FREE [2021-10-24 10:09:19,816 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr58ASSERT_VIOLATIONMEMORY_FREE [2021-10-24 10:09:19,816 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr59ASSERT_VIOLATIONMEMORY_FREE [2021-10-24 10:09:19,816 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr60ASSERT_VIOLATIONMEMORY_FREE [2021-10-24 10:09:19,817 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr61ASSERT_VIOLATIONMEMORY_FREE [2021-10-24 10:09:19,817 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr62ASSERT_VIOLATIONMEMORY_FREE [2021-10-24 10:09:19,817 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr63ASSERT_VIOLATIONMEMORY_LEAK [2021-10-24 10:09:19,817 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2021-10-24 10:09:19,826 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-24 10:09:19,855 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.10 10:09:19 BoogieIcfgContainer [2021-10-24 10:09:19,857 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-24 10:09:19,857 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-24 10:09:19,858 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-24 10:09:19,858 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-24 10:09:19,859 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 10:08:47" (3/4) ... [2021-10-24 10:09:19,861 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-10-24 10:09:19,919 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88c995ab-7ae0-42f4-b91c-7631550c27c1/bin/utaipan-9zjyvhn0QE/witness.graphml [2021-10-24 10:09:19,920 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-24 10:09:19,928 INFO L168 Benchmark]: Toolchain (without parser) took 34171.56 ms. Allocated memory was 111.1 MB in the beginning and 197.1 MB in the end (delta: 86.0 MB). Free memory was 70.7 MB in the beginning and 99.8 MB in the end (delta: -29.1 MB). Peak memory consumption was 56.2 MB. Max. memory is 16.1 GB. [2021-10-24 10:09:19,929 INFO L168 Benchmark]: CDTParser took 0.30 ms. Allocated memory is still 111.1 MB. Free memory is still 88.1 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-24 10:09:19,929 INFO L168 Benchmark]: CACSL2BoogieTranslator took 739.40 ms. Allocated memory is still 111.1 MB. Free memory was 70.5 MB in the beginning and 77.2 MB in the end (delta: -6.7 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-24 10:09:19,929 INFO L168 Benchmark]: Boogie Procedure Inliner took 94.51 ms. Allocated memory is still 111.1 MB. Free memory was 77.2 MB in the beginning and 75.1 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-24 10:09:19,930 INFO L168 Benchmark]: Boogie Preprocessor took 69.08 ms. Allocated memory is still 111.1 MB. Free memory was 75.1 MB in the beginning and 73.4 MB in the end (delta: 1.7 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-24 10:09:19,930 INFO L168 Benchmark]: RCFGBuilder took 915.54 ms. Allocated memory is still 111.1 MB. Free memory was 73.4 MB in the beginning and 49.9 MB in the end (delta: 23.5 MB). Peak memory consumption was 25.2 MB. Max. memory is 16.1 GB. [2021-10-24 10:09:19,935 INFO L168 Benchmark]: TraceAbstraction took 32266.37 ms. Allocated memory was 111.1 MB in the beginning and 197.1 MB in the end (delta: 86.0 MB). Free memory was 49.1 MB in the beginning and 102.9 MB in the end (delta: -53.8 MB). Peak memory consumption was 33.4 MB. Max. memory is 16.1 GB. [2021-10-24 10:09:19,935 INFO L168 Benchmark]: Witness Printer took 62.49 ms. Allocated memory is still 197.1 MB. Free memory was 102.9 MB in the beginning and 99.8 MB in the end (delta: 3.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-24 10:09:19,937 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30 ms. Allocated memory is still 111.1 MB. Free memory is still 88.1 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 739.40 ms. Allocated memory is still 111.1 MB. Free memory was 70.5 MB in the beginning and 77.2 MB in the end (delta: -6.7 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 94.51 ms. Allocated memory is still 111.1 MB. Free memory was 77.2 MB in the beginning and 75.1 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 69.08 ms. Allocated memory is still 111.1 MB. Free memory was 75.1 MB in the beginning and 73.4 MB in the end (delta: 1.7 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 915.54 ms. Allocated memory is still 111.1 MB. Free memory was 73.4 MB in the beginning and 49.9 MB in the end (delta: 23.5 MB). Peak memory consumption was 25.2 MB. Max. memory is 16.1 GB. * TraceAbstraction took 32266.37 ms. Allocated memory was 111.1 MB in the beginning and 197.1 MB in the end (delta: 86.0 MB). Free memory was 49.1 MB in the beginning and 102.9 MB in the end (delta: -53.8 MB). Peak memory consumption was 33.4 MB. Max. memory is 16.1 GB. * Witness Printer took 62.49 ms. Allocated memory is still 197.1 MB. Free memory was 102.9 MB in the beginning and 99.8 MB in the end (delta: 3.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * 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 - CounterExampleResult [Line: 1037]: not all allocated memory was freed not all allocated memory was freed We found a FailurePath: [L1004] SLL* head = malloc(sizeof(SLL)); [L1005] head->next = ((void*)0) [L1006] head->prev = ((void*)0) [L1007] head->data = 0 [L1009] SLL* x = head; [L1012] COND FALSE !(__VERIFIER_nondet_int()) [L1021] x->data = 1 [L1022] x->next = malloc(sizeof(SLL)) [L1023] EXPR x->next [L1023] x->next->prev = x [L1024] EXPR x->next [L1024] x->next->data = 2 [L1026] x = head [L1028] COND FALSE !(!(((void*)0) != x)) [L1030] EXPR x->data [L1030] COND FALSE !(1 != x->data) [L1035] EXPR x->data [L1035] COND FALSE !(!(1 == x->data)) [L1036] EXPR x->next [L1036] x = x->next [L1037] EXPR x->data [L1037] COND TRUE !(2 != x->data) [L1037] reach_error() - UnprovableResult [Line: 1005]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 1005]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 1006]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 1006]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 1007]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 1007]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 1015]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 1015]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 1016]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 1016]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 1016]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 1016]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 1017]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 1017]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 1018]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 1018]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 1019]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 1021]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 1021]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 1022]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 1022]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 1023]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 1023]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 1023]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 1023]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 1024]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 1024]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 1024]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 1024]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 1028]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 1030]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 1030]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 1032]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 1032]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 1032]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 1033]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 1033]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 1035]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 1035]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 1035]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 1036]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 1036]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 1037]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 1037]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 1041]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 1041]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 1044]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 1044]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 1045]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 1045]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 1045]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 1047]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 1047]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 1047]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 1048]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 1048]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 1048]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 1048]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 1048]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 1049]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 1049]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 1049]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 1001]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 123 locations, 64 error locations. Started 1 CEGAR loops. OverallTime: 32123.9ms, OverallIterations: 20, TraceHistogramMax: 1, EmptinessCheckTime: 50.4ms, AutomataDifference: 6050.1ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 30.0ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 1228 SDtfs, 1651 SDslu, 2419 SDs, 0 SdLazy, 3866 SolverSat, 300 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 3781.9ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 215 GetRequests, 50 SyntacticMatches, 4 SemanticMatches, 161 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 554 ImplicationChecksByTransitivity, 20370.3ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=149occurred in iteration=3, InterpolantAutomatonStates: 137, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 189.1ms AutomataMinimizationTime, 19 MinimizatonAttempts, 295 StatesRemovedByMinimization, 12 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 66.6ms SsaConstructionTime, 418.6ms SatisfiabilityAnalysisTime, 2297.4ms InterpolantComputationTime, 253 NumberOfCodeBlocks, 253 NumberOfCodeBlocksAsserted, 20 NumberOfCheckSat, 211 ConstructedInterpolants, 0 QuantifiedInterpolants, 1992 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 19 InterpolantComputations, 18 PerfectInterpolantSequences, 0/1 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: OVERALL_TIME[ms]: 1615, ICFG_INTERPRETER_ENTERED_PROCEDURES: 1, DAG_INTERPRETER_EARLY_EXIT_QUERIES_NONTRIVIAL: 17, DAG_INTERPRETER_EARLY_EXITS: 1, TOOLS_POST_APPLICATIONS: 23, TOOLS_POST_TIME[ms]: 1453, TOOLS_POST_CALL_APPLICATIONS: 0, TOOLS_POST_CALL_TIME[ms]: 0, TOOLS_POST_RETURN_APPLICATIONS: 0, TOOLS_POST_RETURN_TIME[ms]: 0, TOOLS_QUANTIFIERELIM_APPLICATIONS: 23, TOOLS_QUANTIFIERELIM_TIME[ms]: 1437, TOOLS_QUANTIFIERELIM_MAX_TIME[ms]: 336, FLUID_QUERY_TIME[ms]: 6, FLUID_QUERIES: 44, FLUID_YES_ANSWERS: 0, DOMAIN_JOIN_APPLICATIONS: 0, DOMAIN_JOIN_TIME[ms]: 0, DOMAIN_ALPHA_APPLICATIONS: 0, DOMAIN_ALPHA_TIME[ms]: 0, DOMAIN_WIDEN_APPLICATIONS: 0, DOMAIN_WIDEN_TIME[ms]: 0, DOMAIN_ISSUBSETEQ_APPLICATIONS: 1, DOMAIN_ISSUBSETEQ_TIME[ms]: 3, DOMAIN_ISBOTTOM_APPLICATIONS: 17, DOMAIN_ISBOTTOM_TIME[ms]: 43, LOOP_SUMMARIZER_APPLICATIONS: 1, LOOP_SUMMARIZER_CACHE_MISSES: 1, LOOP_SUMMARIZER_OVERALL_TIME[ms]: 74, LOOP_SUMMARIZER_NEW_COMPUTATION_TIME[ms]: 74, LOOP_SUMMARIZER_FIXPOINT_ITERATIONS: 1, CALL_SUMMARIZER_APPLICATIONS: 0, CALL_SUMMARIZER_CACHE_MISSES: 0, CALL_SUMMARIZER_OVERALL_TIME[ms]: 0, CALL_SUMMARIZER_NEW_COMPUTATION_TIME[ms]: 0, PROCEDURE_GRAPH_BUILDER_TIME[ms]: 4, PATH_EXPR_TIME[ms]: 4, REGEX_TO_DAG_TIME[ms]: 7, DAG_COMPRESSION_TIME[ms]: 53, DAG_COMPRESSION_PROCESSED_NODES: 288, DAG_COMPRESSION_RETAINED_NODES: 54, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2021-10-24 10:09:19,991 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88c995ab-7ae0-42f4-b91c-7631550c27c1/bin/utaipan-9zjyvhn0QE/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...