./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/forester-heap/dll-token-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 839c364b Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2584da4-be1a-4772-8870-55a1267c6fe3/bin/uautomizer-DrprNOufMa/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2584da4-be1a-4772-8870-55a1267c6fe3/bin/uautomizer-DrprNOufMa/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2584da4-be1a-4772-8870-55a1267c6fe3/bin/uautomizer-DrprNOufMa/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2584da4-be1a-4772-8870-55a1267c6fe3/bin/uautomizer-DrprNOufMa/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/forester-heap/dll-token-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2584da4-be1a-4772-8870-55a1267c6fe3/bin/uautomizer-DrprNOufMa/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2584da4-be1a-4772-8870-55a1267c6fe3/bin/uautomizer-DrprNOufMa --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 26e745e5a6378d1005b5b65d8cf35b442871742f5efbed2506d4a18acf4ab9a5 --- Real Ultimate output --- This is Ultimate 0.2.2-hotfix-svcomp22-839c364 [2021-12-06 17:15:14,066 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-06 17:15:14,068 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-06 17:15:14,098 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-06 17:15:14,099 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-06 17:15:14,100 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-06 17:15:14,101 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-06 17:15:14,103 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-06 17:15:14,104 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-06 17:15:14,105 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-06 17:15:14,106 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-06 17:15:14,107 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-06 17:15:14,107 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-06 17:15:14,108 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-06 17:15:14,110 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-06 17:15:14,111 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-06 17:15:14,112 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-06 17:15:14,113 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-06 17:15:14,114 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-06 17:15:14,116 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-06 17:15:14,118 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-06 17:15:14,119 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-06 17:15:14,120 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-06 17:15:14,121 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-06 17:15:14,124 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-06 17:15:14,124 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-06 17:15:14,124 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-06 17:15:14,125 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-06 17:15:14,126 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-06 17:15:14,127 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-06 17:15:14,127 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-06 17:15:14,128 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-06 17:15:14,128 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-06 17:15:14,129 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-06 17:15:14,130 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-06 17:15:14,130 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-06 17:15:14,130 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-06 17:15:14,131 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-06 17:15:14,131 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-06 17:15:14,131 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-06 17:15:14,132 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-06 17:15:14,133 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2584da4-be1a-4772-8870-55a1267c6fe3/bin/uautomizer-DrprNOufMa/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2021-12-06 17:15:14,150 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-06 17:15:14,150 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-06 17:15:14,150 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-06 17:15:14,151 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-06 17:15:14,151 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-06 17:15:14,151 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-06 17:15:14,152 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-06 17:15:14,152 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-06 17:15:14,152 INFO L138 SettingsManager]: * Use SBE=true [2021-12-06 17:15:14,152 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-06 17:15:14,152 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-06 17:15:14,152 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-12-06 17:15:14,152 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-06 17:15:14,153 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-06 17:15:14,153 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-06 17:15:14,153 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-12-06 17:15:14,153 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-12-06 17:15:14,153 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-12-06 17:15:14,153 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-06 17:15:14,153 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-12-06 17:15:14,153 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-06 17:15:14,154 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-06 17:15:14,154 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-06 17:15:14,154 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-06 17:15:14,154 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-06 17:15:14,154 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-06 17:15:14,154 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-06 17:15:14,154 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-06 17:15:14,154 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-06 17:15:14,155 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-06 17:15:14,155 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-06 17:15:14,155 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2584da4-be1a-4772-8870-55a1267c6fe3/bin/uautomizer-DrprNOufMa/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2584da4-be1a-4772-8870-55a1267c6fe3/bin/uautomizer-DrprNOufMa Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 26e745e5a6378d1005b5b65d8cf35b442871742f5efbed2506d4a18acf4ab9a5 [2021-12-06 17:15:14,352 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-06 17:15:14,368 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-06 17:15:14,370 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-06 17:15:14,371 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-06 17:15:14,371 INFO L275 PluginConnector]: CDTParser initialized [2021-12-06 17:15:14,373 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2584da4-be1a-4772-8870-55a1267c6fe3/bin/uautomizer-DrprNOufMa/../../sv-benchmarks/c/forester-heap/dll-token-1.i [2021-12-06 17:15:14,422 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2584da4-be1a-4772-8870-55a1267c6fe3/bin/uautomizer-DrprNOufMa/data/3feb49a1b/19dac2edac3043ecb9e76530136a5b57/FLAG0958c1c5d [2021-12-06 17:15:14,833 INFO L306 CDTParser]: Found 1 translation units. [2021-12-06 17:15:14,834 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2584da4-be1a-4772-8870-55a1267c6fe3/sv-benchmarks/c/forester-heap/dll-token-1.i [2021-12-06 17:15:14,844 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2584da4-be1a-4772-8870-55a1267c6fe3/bin/uautomizer-DrprNOufMa/data/3feb49a1b/19dac2edac3043ecb9e76530136a5b57/FLAG0958c1c5d [2021-12-06 17:15:14,856 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2584da4-be1a-4772-8870-55a1267c6fe3/bin/uautomizer-DrprNOufMa/data/3feb49a1b/19dac2edac3043ecb9e76530136a5b57 [2021-12-06 17:15:14,859 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-06 17:15:14,860 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-06 17:15:14,861 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-06 17:15:14,862 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-06 17:15:14,864 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-06 17:15:14,865 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 05:15:14" (1/1) ... [2021-12-06 17:15:14,865 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@fd2f5c4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:15:14, skipping insertion in model container [2021-12-06 17:15:14,866 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 05:15:14" (1/1) ... [2021-12-06 17:15:14,876 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-06 17:15:14,903 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-06 17:15:15,081 WARN L230 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_a2584da4-be1a-4772-8870-55a1267c6fe3/sv-benchmarks/c/forester-heap/dll-token-1.i[22229,22242] [2021-12-06 17:15:15,085 WARN L230 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_a2584da4-be1a-4772-8870-55a1267c6fe3/sv-benchmarks/c/forester-heap/dll-token-1.i[22398,22411] [2021-12-06 17:15:15,086 WARN L230 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_a2584da4-be1a-4772-8870-55a1267c6fe3/sv-benchmarks/c/forester-heap/dll-token-1.i[22489,22502] [2021-12-06 17:15:15,087 WARN L230 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_a2584da4-be1a-4772-8870-55a1267c6fe3/sv-benchmarks/c/forester-heap/dll-token-1.i[22571,22584] [2021-12-06 17:15:15,088 WARN L230 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_a2584da4-be1a-4772-8870-55a1267c6fe3/sv-benchmarks/c/forester-heap/dll-token-1.i[22649,22662] [2021-12-06 17:15:15,090 WARN L230 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_a2584da4-be1a-4772-8870-55a1267c6fe3/sv-benchmarks/c/forester-heap/dll-token-1.i[22795,22808] [2021-12-06 17:15:15,092 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-06 17:15:15,098 INFO L203 MainTranslator]: Completed pre-run [2021-12-06 17:15:15,124 WARN L230 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_a2584da4-be1a-4772-8870-55a1267c6fe3/sv-benchmarks/c/forester-heap/dll-token-1.i[22229,22242] [2021-12-06 17:15:15,126 WARN L230 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_a2584da4-be1a-4772-8870-55a1267c6fe3/sv-benchmarks/c/forester-heap/dll-token-1.i[22398,22411] [2021-12-06 17:15:15,127 WARN L230 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_a2584da4-be1a-4772-8870-55a1267c6fe3/sv-benchmarks/c/forester-heap/dll-token-1.i[22489,22502] [2021-12-06 17:15:15,128 WARN L230 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_a2584da4-be1a-4772-8870-55a1267c6fe3/sv-benchmarks/c/forester-heap/dll-token-1.i[22571,22584] [2021-12-06 17:15:15,129 WARN L230 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_a2584da4-be1a-4772-8870-55a1267c6fe3/sv-benchmarks/c/forester-heap/dll-token-1.i[22649,22662] [2021-12-06 17:15:15,131 WARN L230 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_a2584da4-be1a-4772-8870-55a1267c6fe3/sv-benchmarks/c/forester-heap/dll-token-1.i[22795,22808] [2021-12-06 17:15:15,132 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-06 17:15:15,154 INFO L208 MainTranslator]: Completed translation [2021-12-06 17:15:15,154 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:15:15 WrapperNode [2021-12-06 17:15:15,154 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-06 17:15:15,155 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-06 17:15:15,155 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-06 17:15:15,155 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-06 17:15:15,160 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:15:15" (1/1) ... [2021-12-06 17:15:15,174 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:15:15" (1/1) ... [2021-12-06 17:15:15,197 INFO L137 Inliner]: procedures = 119, calls = 36, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 139 [2021-12-06 17:15:15,197 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-06 17:15:15,198 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-06 17:15:15,198 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-06 17:15:15,198 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-06 17:15:15,205 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:15:15" (1/1) ... [2021-12-06 17:15:15,205 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:15:15" (1/1) ... [2021-12-06 17:15:15,209 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:15:15" (1/1) ... [2021-12-06 17:15:15,209 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:15:15" (1/1) ... [2021-12-06 17:15:15,218 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:15:15" (1/1) ... [2021-12-06 17:15:15,223 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:15:15" (1/1) ... [2021-12-06 17:15:15,226 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:15:15" (1/1) ... [2021-12-06 17:15:15,229 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-06 17:15:15,230 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-06 17:15:15,230 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-06 17:15:15,230 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-06 17:15:15,231 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:15:15" (1/1) ... [2021-12-06 17:15:15,237 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-06 17:15:15,245 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2584da4-be1a-4772-8870-55a1267c6fe3/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 17:15:15,254 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2584da4-be1a-4772-8870-55a1267c6fe3/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-12-06 17:15:15,256 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2584da4-be1a-4772-8870-55a1267c6fe3/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-12-06 17:15:15,289 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-06 17:15:15,290 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-06 17:15:15,290 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-06 17:15:15,290 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-06 17:15:15,290 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-12-06 17:15:15,290 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-12-06 17:15:15,290 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-06 17:15:15,290 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-06 17:15:15,291 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-06 17:15:15,291 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-06 17:15:15,359 INFO L236 CfgBuilder]: Building ICFG [2021-12-06 17:15:15,360 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-06 17:15:15,599 INFO L277 CfgBuilder]: Performing block encoding [2021-12-06 17:15:15,607 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-06 17:15:15,607 INFO L301 CfgBuilder]: Removed 15 assume(true) statements. [2021-12-06 17:15:15,609 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 05:15:15 BoogieIcfgContainer [2021-12-06 17:15:15,609 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-06 17:15:15,611 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-06 17:15:15,611 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-06 17:15:15,614 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-06 17:15:15,614 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.12 05:15:14" (1/3) ... [2021-12-06 17:15:15,615 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6d598f53 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 05:15:15, skipping insertion in model container [2021-12-06 17:15:15,615 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:15:15" (2/3) ... [2021-12-06 17:15:15,616 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6d598f53 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 05:15:15, skipping insertion in model container [2021-12-06 17:15:15,616 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 05:15:15" (3/3) ... [2021-12-06 17:15:15,617 INFO L111 eAbstractionObserver]: Analyzing ICFG dll-token-1.i [2021-12-06 17:15:15,622 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-06 17:15:15,623 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 64 error locations. [2021-12-06 17:15:15,666 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-06 17:15:15,672 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 [2021-12-06 17:15:15,672 INFO L340 AbstractCegarLoop]: Starting to check reachability of 64 error locations. [2021-12-06 17:15:15,686 INFO L276 IsEmpty]: Start isEmpty. Operand has 136 states, 71 states have (on average 2.23943661971831) internal successors, (159), 135 states have internal predecessors, (159), 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) [2021-12-06 17:15:15,691 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2021-12-06 17:15:15,692 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 17:15:15,692 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1] [2021-12-06 17:15:15,693 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 60 more)] === [2021-12-06 17:15:15,698 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 17:15:15,698 INFO L85 PathProgramCache]: Analyzing trace with hash 29857, now seen corresponding path program 1 times [2021-12-06 17:15:15,707 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 17:15:15,708 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [779784484] [2021-12-06 17:15:15,708 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 17:15:15,709 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 17:15:15,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:15:15,832 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 17:15:15,832 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 17:15:15,832 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [779784484] [2021-12-06 17:15:15,833 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [779784484] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 17:15:15,833 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 17:15:15,833 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-06 17:15:15,834 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [547950286] [2021-12-06 17:15:15,834 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 17:15:15,838 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-06 17:15:15,838 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 17:15:15,857 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-06 17:15:15,858 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 17:15:15,860 INFO L87 Difference]: Start difference. First operand has 136 states, 71 states have (on average 2.23943661971831) internal successors, (159), 135 states have internal predecessors, (159), 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 1.5) internal successors, (3), 3 states have internal predecessors, (3), 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) [2021-12-06 17:15:15,965 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 17:15:15,965 INFO L93 Difference]: Finished difference Result 153 states and 156 transitions. [2021-12-06 17:15:15,966 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-06 17:15:15,967 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 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 3 [2021-12-06 17:15:15,968 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 17:15:15,974 INFO L225 Difference]: With dead ends: 153 [2021-12-06 17:15:15,975 INFO L226 Difference]: Without dead ends: 151 [2021-12-06 17:15:15,976 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 17:15:15,978 INFO L933 BasicCegarLoop]: 82 mSDtfsCounter, 110 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 73 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 103 SdHoareTripleChecker+Invalid, 77 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 73 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-06 17:15:15,979 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [110 Valid, 103 Invalid, 77 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 73 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-06 17:15:15,992 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 151 states. [2021-12-06 17:15:16,005 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 151 to 131. [2021-12-06 17:15:16,007 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 131 states, 70 states have (on average 1.9) internal successors, (133), 130 states have internal predecessors, (133), 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) [2021-12-06 17:15:16,008 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 131 states to 131 states and 133 transitions. [2021-12-06 17:15:16,009 INFO L78 Accepts]: Start accepts. Automaton has 131 states and 133 transitions. Word has length 3 [2021-12-06 17:15:16,010 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 17:15:16,010 INFO L470 AbstractCegarLoop]: Abstraction has 131 states and 133 transitions. [2021-12-06 17:15:16,010 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 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) [2021-12-06 17:15:16,010 INFO L276 IsEmpty]: Start isEmpty. Operand 131 states and 133 transitions. [2021-12-06 17:15:16,010 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2021-12-06 17:15:16,010 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 17:15:16,010 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1] [2021-12-06 17:15:16,010 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-06 17:15:16,011 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 60 more)] === [2021-12-06 17:15:16,011 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 17:15:16,011 INFO L85 PathProgramCache]: Analyzing trace with hash 29858, now seen corresponding path program 1 times [2021-12-06 17:15:16,011 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 17:15:16,011 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [33835467] [2021-12-06 17:15:16,012 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 17:15:16,012 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 17:15:16,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:15:16,047 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 17:15:16,047 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 17:15:16,047 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [33835467] [2021-12-06 17:15:16,047 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [33835467] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 17:15:16,047 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 17:15:16,047 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-06 17:15:16,048 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1488139758] [2021-12-06 17:15:16,048 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 17:15:16,049 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-06 17:15:16,049 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 17:15:16,049 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-06 17:15:16,049 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 17:15:16,049 INFO L87 Difference]: Start difference. First operand 131 states and 133 transitions. Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 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) [2021-12-06 17:15:16,122 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 17:15:16,122 INFO L93 Difference]: Finished difference Result 156 states and 158 transitions. [2021-12-06 17:15:16,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-06 17:15:16,123 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 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 3 [2021-12-06 17:15:16,123 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 17:15:16,124 INFO L225 Difference]: With dead ends: 156 [2021-12-06 17:15:16,124 INFO L226 Difference]: Without dead ends: 156 [2021-12-06 17:15:16,124 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 17:15:16,125 INFO L933 BasicCegarLoop]: 82 mSDtfsCounter, 115 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 64 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 115 SdHoareTripleChecker+Valid, 105 SdHoareTripleChecker+Invalid, 68 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 64 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-06 17:15:16,126 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [115 Valid, 105 Invalid, 68 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 64 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-06 17:15:16,127 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 156 states. [2021-12-06 17:15:16,132 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 156 to 128. [2021-12-06 17:15:16,132 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 128 states, 70 states have (on average 1.8571428571428572) internal successors, (130), 127 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) [2021-12-06 17:15:16,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 128 states to 128 states and 130 transitions. [2021-12-06 17:15:16,134 INFO L78 Accepts]: Start accepts. Automaton has 128 states and 130 transitions. Word has length 3 [2021-12-06 17:15:16,134 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 17:15:16,134 INFO L470 AbstractCegarLoop]: Abstraction has 128 states and 130 transitions. [2021-12-06 17:15:16,134 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 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) [2021-12-06 17:15:16,134 INFO L276 IsEmpty]: Start isEmpty. Operand 128 states and 130 transitions. [2021-12-06 17:15:16,135 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-12-06 17:15:16,135 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 17:15:16,135 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 17:15:16,135 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-06 17:15:16,135 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr18REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 60 more)] === [2021-12-06 17:15:16,135 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 17:15:16,135 INFO L85 PathProgramCache]: Analyzing trace with hash 1837112020, now seen corresponding path program 1 times [2021-12-06 17:15:16,136 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 17:15:16,136 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [998367040] [2021-12-06 17:15:16,136 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 17:15:16,136 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 17:15:16,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:15:16,202 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 17:15:16,202 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 17:15:16,202 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [998367040] [2021-12-06 17:15:16,202 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [998367040] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 17:15:16,202 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 17:15:16,202 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-06 17:15:16,203 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1816182461] [2021-12-06 17:15:16,203 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 17:15:16,203 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-06 17:15:16,203 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 17:15:16,203 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-06 17:15:16,203 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-06 17:15:16,204 INFO L87 Difference]: Start difference. First operand 128 states and 130 transitions. Second operand has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 17:15:16,376 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 17:15:16,376 INFO L93 Difference]: Finished difference Result 241 states and 245 transitions. [2021-12-06 17:15:16,376 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-06 17:15:16,376 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2021-12-06 17:15:16,376 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 17:15:16,378 INFO L225 Difference]: With dead ends: 241 [2021-12-06 17:15:16,378 INFO L226 Difference]: Without dead ends: 241 [2021-12-06 17:15:16,378 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-06 17:15:16,379 INFO L933 BasicCegarLoop]: 52 mSDtfsCounter, 271 mSDsluCounter, 61 mSDsCounter, 0 mSdLazyCounter, 179 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 271 SdHoareTripleChecker+Valid, 113 SdHoareTripleChecker+Invalid, 208 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 179 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-12-06 17:15:16,380 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [271 Valid, 113 Invalid, 208 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 179 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-12-06 17:15:16,380 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 241 states. [2021-12-06 17:15:16,392 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 241 to 167. [2021-12-06 17:15:16,393 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 167 states, 109 states have (on average 1.81651376146789) internal successors, (198), 166 states have internal predecessors, (198), 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) [2021-12-06 17:15:16,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 167 states to 167 states and 198 transitions. [2021-12-06 17:15:16,396 INFO L78 Accepts]: Start accepts. Automaton has 167 states and 198 transitions. Word has length 9 [2021-12-06 17:15:16,396 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 17:15:16,396 INFO L470 AbstractCegarLoop]: Abstraction has 167 states and 198 transitions. [2021-12-06 17:15:16,396 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 17:15:16,396 INFO L276 IsEmpty]: Start isEmpty. Operand 167 states and 198 transitions. [2021-12-06 17:15:16,397 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-12-06 17:15:16,397 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 17:15:16,397 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 17:15:16,397 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-06 17:15:16,397 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr17REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 60 more)] === [2021-12-06 17:15:16,398 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 17:15:16,398 INFO L85 PathProgramCache]: Analyzing trace with hash 1837112019, now seen corresponding path program 1 times [2021-12-06 17:15:16,398 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 17:15:16,398 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [686906639] [2021-12-06 17:15:16,398 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 17:15:16,399 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 17:15:16,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:15:16,451 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 17:15:16,451 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 17:15:16,451 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [686906639] [2021-12-06 17:15:16,451 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [686906639] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 17:15:16,451 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 17:15:16,451 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-06 17:15:16,451 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1895100] [2021-12-06 17:15:16,451 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 17:15:16,452 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-06 17:15:16,452 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 17:15:16,452 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-06 17:15:16,452 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-06 17:15:16,453 INFO L87 Difference]: Start difference. First operand 167 states and 198 transitions. Second operand has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 17:15:16,528 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 17:15:16,529 INFO L93 Difference]: Finished difference Result 157 states and 168 transitions. [2021-12-06 17:15:16,529 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-06 17:15:16,529 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2021-12-06 17:15:16,529 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 17:15:16,530 INFO L225 Difference]: With dead ends: 157 [2021-12-06 17:15:16,530 INFO L226 Difference]: Without dead ends: 157 [2021-12-06 17:15:16,530 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-06 17:15:16,531 INFO L933 BasicCegarLoop]: 56 mSDtfsCounter, 181 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 98 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 181 SdHoareTripleChecker+Valid, 74 SdHoareTripleChecker+Invalid, 132 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 98 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-06 17:15:16,532 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [181 Valid, 74 Invalid, 132 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 98 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-06 17:15:16,532 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 157 states. [2021-12-06 17:15:16,538 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 157 to 152. [2021-12-06 17:15:16,538 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 152 states, 109 states have (on average 1.5321100917431192) internal successors, (167), 151 states have internal predecessors, (167), 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) [2021-12-06 17:15:16,539 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 152 states to 152 states and 167 transitions. [2021-12-06 17:15:16,539 INFO L78 Accepts]: Start accepts. Automaton has 152 states and 167 transitions. Word has length 9 [2021-12-06 17:15:16,539 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 17:15:16,540 INFO L470 AbstractCegarLoop]: Abstraction has 152 states and 167 transitions. [2021-12-06 17:15:16,540 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 17:15:16,540 INFO L276 IsEmpty]: Start isEmpty. Operand 152 states and 167 transitions. [2021-12-06 17:15:16,540 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-12-06 17:15:16,540 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 17:15:16,540 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 17:15:16,540 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-12-06 17:15:16,540 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr11REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 60 more)] === [2021-12-06 17:15:16,541 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 17:15:16,541 INFO L85 PathProgramCache]: Analyzing trace with hash -1363413642, now seen corresponding path program 1 times [2021-12-06 17:15:16,541 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 17:15:16,541 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1909473011] [2021-12-06 17:15:16,541 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 17:15:16,541 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 17:15:16,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:15:16,612 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 17:15:16,612 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 17:15:16,612 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1909473011] [2021-12-06 17:15:16,613 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1909473011] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 17:15:16,613 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 17:15:16,613 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-06 17:15:16,613 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [527507798] [2021-12-06 17:15:16,613 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 17:15:16,613 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-06 17:15:16,613 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 17:15:16,614 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-06 17:15:16,614 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-06 17:15:16,614 INFO L87 Difference]: Start difference. First operand 152 states and 167 transitions. Second operand has 5 states, 4 states have (on average 3.0) internal successors, (12), 5 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) [2021-12-06 17:15:16,696 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 17:15:16,696 INFO L93 Difference]: Finished difference Result 151 states and 165 transitions. [2021-12-06 17:15:16,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-06 17:15:16,696 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.0) internal successors, (12), 5 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 [2021-12-06 17:15:16,696 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 17:15:16,697 INFO L225 Difference]: With dead ends: 151 [2021-12-06 17:15:16,697 INFO L226 Difference]: Without dead ends: 151 [2021-12-06 17:15:16,697 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-12-06 17:15:16,699 INFO L933 BasicCegarLoop]: 108 mSDtfsCounter, 6 mSDsluCounter, 170 mSDsCounter, 0 mSdLazyCounter, 167 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 278 SdHoareTripleChecker+Invalid, 168 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 167 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-06 17:15:16,699 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6 Valid, 278 Invalid, 168 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 167 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-06 17:15:16,700 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 151 states. [2021-12-06 17:15:16,703 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 151 to 151. [2021-12-06 17:15:16,704 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 151 states, 109 states have (on average 1.5137614678899083) internal successors, (165), 150 states have internal predecessors, (165), 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) [2021-12-06 17:15:16,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 151 states to 151 states and 165 transitions. [2021-12-06 17:15:16,705 INFO L78 Accepts]: Start accepts. Automaton has 151 states and 165 transitions. Word has length 12 [2021-12-06 17:15:16,705 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 17:15:16,705 INFO L470 AbstractCegarLoop]: Abstraction has 151 states and 165 transitions. [2021-12-06 17:15:16,705 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.0) internal successors, (12), 5 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) [2021-12-06 17:15:16,705 INFO L276 IsEmpty]: Start isEmpty. Operand 151 states and 165 transitions. [2021-12-06 17:15:16,705 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-12-06 17:15:16,705 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 17:15:16,706 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 17:15:16,706 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-12-06 17:15:16,706 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr10REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 60 more)] === [2021-12-06 17:15:16,706 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 17:15:16,706 INFO L85 PathProgramCache]: Analyzing trace with hash -1363413643, now seen corresponding path program 1 times [2021-12-06 17:15:16,706 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 17:15:16,706 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1339379899] [2021-12-06 17:15:16,706 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 17:15:16,706 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 17:15:16,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:15:16,756 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 17:15:16,756 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 17:15:16,756 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1339379899] [2021-12-06 17:15:16,756 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1339379899] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 17:15:16,756 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 17:15:16,756 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-06 17:15:16,756 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1795447594] [2021-12-06 17:15:16,756 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 17:15:16,757 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-06 17:15:16,757 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 17:15:16,757 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-06 17:15:16,757 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-06 17:15:16,757 INFO L87 Difference]: Start difference. First operand 151 states and 165 transitions. Second operand has 5 states, 4 states have (on average 3.0) internal successors, (12), 5 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) [2021-12-06 17:15:16,847 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 17:15:16,848 INFO L93 Difference]: Finished difference Result 150 states and 163 transitions. [2021-12-06 17:15:16,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-06 17:15:16,848 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.0) internal successors, (12), 5 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 [2021-12-06 17:15:16,848 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 17:15:16,849 INFO L225 Difference]: With dead ends: 150 [2021-12-06 17:15:16,849 INFO L226 Difference]: Without dead ends: 150 [2021-12-06 17:15:16,849 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-12-06 17:15:16,850 INFO L933 BasicCegarLoop]: 107 mSDtfsCounter, 7 mSDsluCounter, 176 mSDsCounter, 0 mSdLazyCounter, 156 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 283 SdHoareTripleChecker+Invalid, 158 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 156 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-06 17:15:16,851 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7 Valid, 283 Invalid, 158 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 156 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-06 17:15:16,852 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 150 states. [2021-12-06 17:15:16,861 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 150 to 150. [2021-12-06 17:15:16,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 150 states, 109 states have (on average 1.4954128440366972) internal successors, (163), 149 states have internal predecessors, (163), 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) [2021-12-06 17:15:16,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150 states to 150 states and 163 transitions. [2021-12-06 17:15:16,862 INFO L78 Accepts]: Start accepts. Automaton has 150 states and 163 transitions. Word has length 12 [2021-12-06 17:15:16,863 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 17:15:16,863 INFO L470 AbstractCegarLoop]: Abstraction has 150 states and 163 transitions. [2021-12-06 17:15:16,863 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.0) internal successors, (12), 5 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) [2021-12-06 17:15:16,863 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states and 163 transitions. [2021-12-06 17:15:16,864 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-12-06 17:15:16,864 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 17:15:16,864 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 17:15:16,864 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-12-06 17:15:16,864 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr23REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 60 more)] === [2021-12-06 17:15:16,865 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 17:15:16,865 INFO L85 PathProgramCache]: Analyzing trace with hash -896738186, now seen corresponding path program 1 times [2021-12-06 17:15:16,865 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 17:15:16,865 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1793829047] [2021-12-06 17:15:16,865 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 17:15:16,866 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 17:15:16,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:15:16,914 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 17:15:16,915 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 17:15:16,915 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1793829047] [2021-12-06 17:15:16,915 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1793829047] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 17:15:16,915 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 17:15:16,915 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-06 17:15:16,916 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1012290387] [2021-12-06 17:15:16,916 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 17:15:16,916 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-06 17:15:16,916 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 17:15:16,917 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-06 17:15:16,917 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-06 17:15:16,917 INFO L87 Difference]: Start difference. First operand 150 states and 163 transitions. Second operand has 5 states, 4 states have (on average 3.5) internal successors, (14), 5 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) [2021-12-06 17:15:16,999 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 17:15:16,999 INFO L93 Difference]: Finished difference Result 149 states and 161 transitions. [2021-12-06 17:15:16,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-06 17:15:16,999 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.5) internal successors, (14), 5 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 [2021-12-06 17:15:16,999 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 17:15:17,000 INFO L225 Difference]: With dead ends: 149 [2021-12-06 17:15:17,000 INFO L226 Difference]: Without dead ends: 149 [2021-12-06 17:15:17,000 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-12-06 17:15:17,001 INFO L933 BasicCegarLoop]: 103 mSDtfsCounter, 11 mSDsluCounter, 172 mSDsCounter, 0 mSdLazyCounter, 156 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 275 SdHoareTripleChecker+Invalid, 158 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 156 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-06 17:15:17,002 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [11 Valid, 275 Invalid, 158 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 156 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-06 17:15:17,003 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 149 states. [2021-12-06 17:15:17,006 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 149 to 149. [2021-12-06 17:15:17,006 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 149 states, 109 states have (on average 1.4770642201834863) internal successors, (161), 148 states have internal predecessors, (161), 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) [2021-12-06 17:15:17,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 149 states to 149 states and 161 transitions. [2021-12-06 17:15:17,007 INFO L78 Accepts]: Start accepts. Automaton has 149 states and 161 transitions. Word has length 14 [2021-12-06 17:15:17,008 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 17:15:17,008 INFO L470 AbstractCegarLoop]: Abstraction has 149 states and 161 transitions. [2021-12-06 17:15:17,008 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.5) internal successors, (14), 5 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) [2021-12-06 17:15:17,008 INFO L276 IsEmpty]: Start isEmpty. Operand 149 states and 161 transitions. [2021-12-06 17:15:17,008 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-12-06 17:15:17,009 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 17:15:17,009 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 17:15:17,009 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-12-06 17:15:17,009 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr24REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 60 more)] === [2021-12-06 17:15:17,009 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 17:15:17,009 INFO L85 PathProgramCache]: Analyzing trace with hash -896738185, now seen corresponding path program 1 times [2021-12-06 17:15:17,010 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 17:15:17,010 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [116589627] [2021-12-06 17:15:17,010 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 17:15:17,010 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 17:15:17,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:15:17,073 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 17:15:17,073 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 17:15:17,073 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [116589627] [2021-12-06 17:15:17,073 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [116589627] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 17:15:17,073 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 17:15:17,073 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-06 17:15:17,073 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [202267721] [2021-12-06 17:15:17,073 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 17:15:17,074 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-06 17:15:17,074 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 17:15:17,074 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-06 17:15:17,074 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-06 17:15:17,074 INFO L87 Difference]: Start difference. First operand 149 states and 161 transitions. Second operand has 5 states, 4 states have (on average 3.5) internal successors, (14), 5 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) [2021-12-06 17:15:17,167 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 17:15:17,167 INFO L93 Difference]: Finished difference Result 148 states and 159 transitions. [2021-12-06 17:15:17,168 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-06 17:15:17,168 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.5) internal successors, (14), 5 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 [2021-12-06 17:15:17,168 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 17:15:17,169 INFO L225 Difference]: With dead ends: 148 [2021-12-06 17:15:17,169 INFO L226 Difference]: Without dead ends: 148 [2021-12-06 17:15:17,169 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-12-06 17:15:17,169 INFO L933 BasicCegarLoop]: 106 mSDtfsCounter, 4 mSDsluCounter, 167 mSDsCounter, 0 mSdLazyCounter, 162 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 273 SdHoareTripleChecker+Invalid, 163 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 162 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-06 17:15:17,170 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4 Valid, 273 Invalid, 163 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 162 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-06 17:15:17,170 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 148 states. [2021-12-06 17:15:17,172 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 148 to 148. [2021-12-06 17:15:17,172 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 148 states, 109 states have (on average 1.4587155963302751) internal successors, (159), 147 states have internal predecessors, (159), 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) [2021-12-06 17:15:17,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 148 states and 159 transitions. [2021-12-06 17:15:17,173 INFO L78 Accepts]: Start accepts. Automaton has 148 states and 159 transitions. Word has length 14 [2021-12-06 17:15:17,173 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 17:15:17,173 INFO L470 AbstractCegarLoop]: Abstraction has 148 states and 159 transitions. [2021-12-06 17:15:17,173 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.5) internal successors, (14), 5 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) [2021-12-06 17:15:17,173 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 159 transitions. [2021-12-06 17:15:17,174 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-12-06 17:15:17,174 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 17:15:17,174 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 17:15:17,174 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-12-06 17:15:17,174 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr14REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 60 more)] === [2021-12-06 17:15:17,174 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 17:15:17,174 INFO L85 PathProgramCache]: Analyzing trace with hash 1546362871, now seen corresponding path program 1 times [2021-12-06 17:15:17,174 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 17:15:17,175 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1289676979] [2021-12-06 17:15:17,175 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 17:15:17,175 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 17:15:17,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:15:17,246 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 17:15:17,246 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 17:15:17,246 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1289676979] [2021-12-06 17:15:17,246 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1289676979] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 17:15:17,246 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 17:15:17,246 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-06 17:15:17,247 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1702846123] [2021-12-06 17:15:17,247 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 17:15:17,247 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-06 17:15:17,247 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 17:15:17,247 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-06 17:15:17,247 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2021-12-06 17:15:17,247 INFO L87 Difference]: Start difference. First operand 148 states and 159 transitions. Second operand has 9 states, 8 states have (on average 2.0) internal successors, (16), 9 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 17:15:17,413 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 17:15:17,414 INFO L93 Difference]: Finished difference Result 152 states and 159 transitions. [2021-12-06 17:15:17,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-12-06 17:15:17,414 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 2.0) internal successors, (16), 9 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2021-12-06 17:15:17,414 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 17:15:17,415 INFO L225 Difference]: With dead ends: 152 [2021-12-06 17:15:17,415 INFO L226 Difference]: Without dead ends: 152 [2021-12-06 17:15:17,415 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=62, Invalid=148, Unknown=0, NotChecked=0, Total=210 [2021-12-06 17:15:17,416 INFO L933 BasicCegarLoop]: 52 mSDtfsCounter, 184 mSDsluCounter, 136 mSDsCounter, 0 mSdLazyCounter, 300 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 184 SdHoareTripleChecker+Valid, 188 SdHoareTripleChecker+Invalid, 321 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 300 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-06 17:15:17,416 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [184 Valid, 188 Invalid, 321 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 300 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-06 17:15:17,417 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 152 states. [2021-12-06 17:15:17,419 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 152 to 147. [2021-12-06 17:15:17,420 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 147 states, 109 states have (on average 1.4495412844036697) internal successors, (158), 146 states have internal predecessors, (158), 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) [2021-12-06 17:15:17,420 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 147 states to 147 states and 158 transitions. [2021-12-06 17:15:17,420 INFO L78 Accepts]: Start accepts. Automaton has 147 states and 158 transitions. Word has length 16 [2021-12-06 17:15:17,420 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 17:15:17,420 INFO L470 AbstractCegarLoop]: Abstraction has 147 states and 158 transitions. [2021-12-06 17:15:17,420 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 2.0) internal successors, (16), 9 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 17:15:17,421 INFO L276 IsEmpty]: Start isEmpty. Operand 147 states and 158 transitions. [2021-12-06 17:15:17,421 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-12-06 17:15:17,421 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 17:15:17,421 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 17:15:17,421 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-12-06 17:15:17,421 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr15REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 60 more)] === [2021-12-06 17:15:17,421 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 17:15:17,422 INFO L85 PathProgramCache]: Analyzing trace with hash 1546362872, now seen corresponding path program 1 times [2021-12-06 17:15:17,422 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 17:15:17,422 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [513848817] [2021-12-06 17:15:17,422 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 17:15:17,422 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 17:15:17,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:15:17,525 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 17:15:17,526 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 17:15:17,526 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [513848817] [2021-12-06 17:15:17,526 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [513848817] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 17:15:17,526 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 17:15:17,526 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-12-06 17:15:17,526 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1982080437] [2021-12-06 17:15:17,526 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 17:15:17,526 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-12-06 17:15:17,526 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 17:15:17,527 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-12-06 17:15:17,527 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2021-12-06 17:15:17,527 INFO L87 Difference]: Start difference. First operand 147 states and 158 transitions. Second operand has 10 states, 9 states have (on average 1.7777777777777777) internal successors, (16), 10 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 17:15:17,844 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 17:15:17,844 INFO L93 Difference]: Finished difference Result 149 states and 156 transitions. [2021-12-06 17:15:17,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-12-06 17:15:17,845 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 1.7777777777777777) internal successors, (16), 10 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2021-12-06 17:15:17,845 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 17:15:17,846 INFO L225 Difference]: With dead ends: 149 [2021-12-06 17:15:17,846 INFO L226 Difference]: Without dead ends: 149 [2021-12-06 17:15:17,846 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=140, Invalid=366, Unknown=0, NotChecked=0, Total=506 [2021-12-06 17:15:17,847 INFO L933 BasicCegarLoop]: 58 mSDtfsCounter, 182 mSDsluCounter, 224 mSDsCounter, 0 mSdLazyCounter, 469 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 182 SdHoareTripleChecker+Valid, 282 SdHoareTripleChecker+Invalid, 501 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 469 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-12-06 17:15:17,847 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [182 Valid, 282 Invalid, 501 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 469 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-12-06 17:15:17,847 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 149 states. [2021-12-06 17:15:17,849 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 149 to 123. [2021-12-06 17:15:17,849 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 123 states, 93 states have (on average 1.4301075268817205) internal successors, (133), 122 states have internal predecessors, (133), 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) [2021-12-06 17:15:17,850 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 123 states and 133 transitions. [2021-12-06 17:15:17,850 INFO L78 Accepts]: Start accepts. Automaton has 123 states and 133 transitions. Word has length 16 [2021-12-06 17:15:17,850 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 17:15:17,850 INFO L470 AbstractCegarLoop]: Abstraction has 123 states and 133 transitions. [2021-12-06 17:15:17,850 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 1.7777777777777777) internal successors, (16), 10 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 17:15:17,850 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 133 transitions. [2021-12-06 17:15:17,850 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-12-06 17:15:17,851 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 17:15:17,851 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 17:15:17,851 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-12-06 17:15:17,851 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr27REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 60 more)] === [2021-12-06 17:15:17,851 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 17:15:17,851 INFO L85 PathProgramCache]: Analyzing trace with hash -30672293, now seen corresponding path program 1 times [2021-12-06 17:15:17,851 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 17:15:17,852 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [654231020] [2021-12-06 17:15:17,852 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 17:15:17,852 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 17:15:17,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:15:17,906 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 17:15:17,906 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 17:15:17,906 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [654231020] [2021-12-06 17:15:17,906 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [654231020] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 17:15:17,906 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 17:15:17,906 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-06 17:15:17,906 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1099012171] [2021-12-06 17:15:17,906 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 17:15:17,907 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-12-06 17:15:17,907 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 17:15:17,907 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-12-06 17:15:17,907 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-12-06 17:15:17,907 INFO L87 Difference]: Start difference. First operand 123 states and 133 transitions. Second operand has 8 states, 7 states have (on average 2.4285714285714284) internal successors, (17), 8 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 17:15:18,047 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 17:15:18,047 INFO L93 Difference]: Finished difference Result 126 states and 137 transitions. [2021-12-06 17:15:18,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-06 17:15:18,047 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 2.4285714285714284) internal successors, (17), 8 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17 [2021-12-06 17:15:18,047 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 17:15:18,048 INFO L225 Difference]: With dead ends: 126 [2021-12-06 17:15:18,048 INFO L226 Difference]: Without dead ends: 126 [2021-12-06 17:15:18,048 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=51, Invalid=131, Unknown=0, NotChecked=0, Total=182 [2021-12-06 17:15:18,049 INFO L933 BasicCegarLoop]: 74 mSDtfsCounter, 63 mSDsluCounter, 179 mSDsCounter, 0 mSdLazyCounter, 301 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 63 SdHoareTripleChecker+Valid, 253 SdHoareTripleChecker+Invalid, 314 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 301 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-06 17:15:18,049 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [63 Valid, 253 Invalid, 314 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 301 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-06 17:15:18,050 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 126 states. [2021-12-06 17:15:18,051 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 126 to 122. [2021-12-06 17:15:18,051 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 122 states, 93 states have (on average 1.4193548387096775) internal successors, (132), 121 states have internal predecessors, (132), 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) [2021-12-06 17:15:18,052 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 122 states and 132 transitions. [2021-12-06 17:15:18,052 INFO L78 Accepts]: Start accepts. Automaton has 122 states and 132 transitions. Word has length 17 [2021-12-06 17:15:18,052 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 17:15:18,052 INFO L470 AbstractCegarLoop]: Abstraction has 122 states and 132 transitions. [2021-12-06 17:15:18,052 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 2.4285714285714284) internal successors, (17), 8 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 17:15:18,052 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states and 132 transitions. [2021-12-06 17:15:18,052 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-12-06 17:15:18,053 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 17:15:18,053 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 17:15:18,053 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-12-06 17:15:18,053 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr28REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 60 more)] === [2021-12-06 17:15:18,053 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 17:15:18,053 INFO L85 PathProgramCache]: Analyzing trace with hash -30672292, now seen corresponding path program 1 times [2021-12-06 17:15:18,053 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 17:15:18,053 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [952690934] [2021-12-06 17:15:18,053 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 17:15:18,053 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 17:15:18,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:15:18,124 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 17:15:18,124 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 17:15:18,124 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [952690934] [2021-12-06 17:15:18,124 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [952690934] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 17:15:18,125 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 17:15:18,125 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-06 17:15:18,125 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1528113552] [2021-12-06 17:15:18,125 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 17:15:18,125 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-12-06 17:15:18,125 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 17:15:18,125 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-12-06 17:15:18,125 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-12-06 17:15:18,126 INFO L87 Difference]: Start difference. First operand 122 states and 132 transitions. Second operand has 8 states, 7 states have (on average 2.4285714285714284) internal successors, (17), 8 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 17:15:18,285 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 17:15:18,286 INFO L93 Difference]: Finished difference Result 125 states and 136 transitions. [2021-12-06 17:15:18,286 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-06 17:15:18,286 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 2.4285714285714284) internal successors, (17), 8 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17 [2021-12-06 17:15:18,286 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 17:15:18,287 INFO L225 Difference]: With dead ends: 125 [2021-12-06 17:15:18,287 INFO L226 Difference]: Without dead ends: 125 [2021-12-06 17:15:18,287 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=51, Invalid=131, Unknown=0, NotChecked=0, Total=182 [2021-12-06 17:15:18,288 INFO L933 BasicCegarLoop]: 74 mSDtfsCounter, 62 mSDsluCounter, 189 mSDsCounter, 0 mSdLazyCounter, 288 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 263 SdHoareTripleChecker+Invalid, 301 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 288 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-06 17:15:18,288 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [62 Valid, 263 Invalid, 301 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 288 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-06 17:15:18,289 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 125 states. [2021-12-06 17:15:18,291 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 125 to 121. [2021-12-06 17:15:18,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 121 states, 93 states have (on average 1.4086021505376345) internal successors, (131), 120 states have internal predecessors, (131), 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) [2021-12-06 17:15:18,292 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 121 states and 131 transitions. [2021-12-06 17:15:18,292 INFO L78 Accepts]: Start accepts. Automaton has 121 states and 131 transitions. Word has length 17 [2021-12-06 17:15:18,293 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 17:15:18,293 INFO L470 AbstractCegarLoop]: Abstraction has 121 states and 131 transitions. [2021-12-06 17:15:18,293 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 2.4285714285714284) internal successors, (17), 8 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 17:15:18,293 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states and 131 transitions. [2021-12-06 17:15:18,293 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-12-06 17:15:18,294 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 17:15:18,294 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 17:15:18,294 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-12-06 17:15:18,294 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)] === [2021-12-06 17:15:18,294 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 17:15:18,294 INFO L85 PathProgramCache]: Analyzing trace with hash -3964873, now seen corresponding path program 1 times [2021-12-06 17:15:18,295 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 17:15:18,295 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1495870989] [2021-12-06 17:15:18,295 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 17:15:18,295 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 17:15:18,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:15:18,345 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 17:15:18,346 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 17:15:18,346 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1495870989] [2021-12-06 17:15:18,346 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1495870989] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 17:15:18,346 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 17:15:18,346 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-06 17:15:18,346 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [471550115] [2021-12-06 17:15:18,346 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 17:15:18,347 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-06 17:15:18,347 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 17:15:18,347 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-06 17:15:18,347 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-12-06 17:15:18,347 INFO L87 Difference]: Start difference. First operand 121 states and 131 transitions. Second operand has 6 states, 6 states have (on average 3.0) internal successors, (18), 5 states have internal predecessors, (18), 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) [2021-12-06 17:15:18,418 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 17:15:18,418 INFO L93 Difference]: Finished difference Result 123 states and 134 transitions. [2021-12-06 17:15:18,418 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-06 17:15:18,418 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.0) internal successors, (18), 5 states have internal predecessors, (18), 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 18 [2021-12-06 17:15:18,418 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 17:15:18,419 INFO L225 Difference]: With dead ends: 123 [2021-12-06 17:15:18,419 INFO L226 Difference]: Without dead ends: 123 [2021-12-06 17:15:18,419 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=31, Unknown=0, NotChecked=0, Total=56 [2021-12-06 17:15:18,420 INFO L933 BasicCegarLoop]: 53 mSDtfsCounter, 153 mSDsluCounter, 60 mSDsCounter, 0 mSdLazyCounter, 119 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 153 SdHoareTripleChecker+Valid, 113 SdHoareTripleChecker+Invalid, 135 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 119 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-06 17:15:18,420 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [153 Valid, 113 Invalid, 135 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 119 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-06 17:15:18,421 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 123 states. [2021-12-06 17:15:18,423 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 123 to 119. [2021-12-06 17:15:18,423 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 119 states, 92 states have (on average 1.4021739130434783) 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) [2021-12-06 17:15:18,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 119 states and 129 transitions. [2021-12-06 17:15:18,424 INFO L78 Accepts]: Start accepts. Automaton has 119 states and 129 transitions. Word has length 18 [2021-12-06 17:15:18,424 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 17:15:18,424 INFO L470 AbstractCegarLoop]: Abstraction has 119 states and 129 transitions. [2021-12-06 17:15:18,425 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.0) internal successors, (18), 5 states have internal predecessors, (18), 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) [2021-12-06 17:15:18,425 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states and 129 transitions. [2021-12-06 17:15:18,425 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-12-06 17:15:18,425 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 17:15:18,425 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 17:15:18,426 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-12-06 17:15:18,426 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)] === [2021-12-06 17:15:18,426 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 17:15:18,426 INFO L85 PathProgramCache]: Analyzing trace with hash 1069806106, now seen corresponding path program 1 times [2021-12-06 17:15:18,426 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 17:15:18,426 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1534316204] [2021-12-06 17:15:18,427 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 17:15:18,427 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 17:15:18,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:15:18,454 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 17:15:18,454 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 17:15:18,454 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1534316204] [2021-12-06 17:15:18,455 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1534316204] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 17:15:18,455 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 17:15:18,455 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-06 17:15:18,455 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [376273459] [2021-12-06 17:15:18,455 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 17:15:18,455 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-06 17:15:18,455 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 17:15:18,455 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-06 17:15:18,456 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-06 17:15:18,456 INFO L87 Difference]: Start difference. First operand 119 states and 129 transitions. Second operand has 4 states, 4 states have (on average 5.0) internal successors, (20), 4 states have internal predecessors, (20), 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) [2021-12-06 17:15:18,525 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 17:15:18,525 INFO L93 Difference]: Finished difference Result 181 states and 186 transitions. [2021-12-06 17:15:18,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-06 17:15:18,525 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.0) internal successors, (20), 4 states have internal predecessors, (20), 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 20 [2021-12-06 17:15:18,525 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 17:15:18,526 INFO L225 Difference]: With dead ends: 181 [2021-12-06 17:15:18,527 INFO L226 Difference]: Without dead ends: 181 [2021-12-06 17:15:18,527 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-06 17:15:18,527 INFO L933 BasicCegarLoop]: 63 mSDtfsCounter, 177 mSDsluCounter, 72 mSDsCounter, 0 mSdLazyCounter, 86 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 177 SdHoareTripleChecker+Valid, 135 SdHoareTripleChecker+Invalid, 93 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 86 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-06 17:15:18,528 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [177 Valid, 135 Invalid, 93 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 86 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-06 17:15:18,529 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 181 states. [2021-12-06 17:15:18,531 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 181 to 117. [2021-12-06 17:15:18,531 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 117 states, 91 states have (on average 1.3956043956043955) internal successors, (127), 116 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) [2021-12-06 17:15:18,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117 states to 117 states and 127 transitions. [2021-12-06 17:15:18,532 INFO L78 Accepts]: Start accepts. Automaton has 117 states and 127 transitions. Word has length 20 [2021-12-06 17:15:18,532 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 17:15:18,532 INFO L470 AbstractCegarLoop]: Abstraction has 117 states and 127 transitions. [2021-12-06 17:15:18,532 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.0) internal successors, (20), 4 states have internal predecessors, (20), 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) [2021-12-06 17:15:18,532 INFO L276 IsEmpty]: Start isEmpty. Operand 117 states and 127 transitions. [2021-12-06 17:15:18,533 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-12-06 17:15:18,533 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 17:15:18,533 INFO L514 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, 1, 1] [2021-12-06 17:15:18,533 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-12-06 17:15:18,534 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)] === [2021-12-06 17:15:18,534 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 17:15:18,534 INFO L85 PathProgramCache]: Analyzing trace with hash 684226449, now seen corresponding path program 1 times [2021-12-06 17:15:18,534 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 17:15:18,534 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1243753734] [2021-12-06 17:15:18,534 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 17:15:18,534 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 17:15:18,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:15:18,723 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 17:15:18,723 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 17:15:18,723 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1243753734] [2021-12-06 17:15:18,723 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1243753734] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 17:15:18,723 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 17:15:18,723 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-12-06 17:15:18,723 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [147091822] [2021-12-06 17:15:18,723 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 17:15:18,723 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-12-06 17:15:18,723 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 17:15:18,724 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-12-06 17:15:18,724 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2021-12-06 17:15:18,724 INFO L87 Difference]: Start difference. First operand 117 states and 127 transitions. Second operand has 12 states, 12 states have (on average 2.0833333333333335) internal successors, (25), 12 states have internal predecessors, (25), 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) [2021-12-06 17:15:18,971 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 17:15:18,971 INFO L93 Difference]: Finished difference Result 225 states and 229 transitions. [2021-12-06 17:15:18,971 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-12-06 17:15:18,972 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 2.0833333333333335) internal successors, (25), 12 states have internal predecessors, (25), 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 25 [2021-12-06 17:15:18,972 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 17:15:18,973 INFO L225 Difference]: With dead ends: 225 [2021-12-06 17:15:18,973 INFO L226 Difference]: Without dead ends: 225 [2021-12-06 17:15:18,973 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=115, Invalid=227, Unknown=0, NotChecked=0, Total=342 [2021-12-06 17:15:18,973 INFO L933 BasicCegarLoop]: 55 mSDtfsCounter, 426 mSDsluCounter, 258 mSDsCounter, 0 mSdLazyCounter, 387 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 426 SdHoareTripleChecker+Valid, 313 SdHoareTripleChecker+Invalid, 436 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 387 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-12-06 17:15:18,974 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [426 Valid, 313 Invalid, 436 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 387 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-12-06 17:15:18,974 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 225 states. [2021-12-06 17:15:18,976 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 225 to 133. [2021-12-06 17:15:18,976 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 133 states, 107 states have (on average 1.3457943925233644) internal successors, (144), 132 states have internal predecessors, (144), 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) [2021-12-06 17:15:18,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 133 states to 133 states and 144 transitions. [2021-12-06 17:15:18,977 INFO L78 Accepts]: Start accepts. Automaton has 133 states and 144 transitions. Word has length 25 [2021-12-06 17:15:18,977 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 17:15:18,977 INFO L470 AbstractCegarLoop]: Abstraction has 133 states and 144 transitions. [2021-12-06 17:15:18,977 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 2.0833333333333335) internal successors, (25), 12 states have internal predecessors, (25), 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) [2021-12-06 17:15:18,977 INFO L276 IsEmpty]: Start isEmpty. Operand 133 states and 144 transitions. [2021-12-06 17:15:18,977 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-12-06 17:15:18,977 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 17:15:18,978 INFO L514 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, 1, 1] [2021-12-06 17:15:18,978 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-12-06 17:15:18,978 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)] === [2021-12-06 17:15:18,978 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 17:15:18,978 INFO L85 PathProgramCache]: Analyzing trace with hash 684193678, now seen corresponding path program 1 times [2021-12-06 17:15:18,978 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 17:15:18,978 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2143696874] [2021-12-06 17:15:18,978 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 17:15:18,978 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 17:15:18,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:15:19,008 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 17:15:19,009 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 17:15:19,009 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2143696874] [2021-12-06 17:15:19,009 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2143696874] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 17:15:19,009 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 17:15:19,009 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-06 17:15:19,009 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [52274658] [2021-12-06 17:15:19,009 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 17:15:19,009 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-06 17:15:19,009 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 17:15:19,010 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-06 17:15:19,010 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-06 17:15:19,010 INFO L87 Difference]: Start difference. First operand 133 states and 144 transitions. Second operand has 5 states, 5 states have (on average 5.0) internal successors, (25), 5 states have internal predecessors, (25), 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) [2021-12-06 17:15:19,071 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 17:15:19,071 INFO L93 Difference]: Finished difference Result 131 states and 141 transitions. [2021-12-06 17:15:19,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-06 17:15:19,072 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.0) internal successors, (25), 5 states have internal predecessors, (25), 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 25 [2021-12-06 17:15:19,072 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 17:15:19,073 INFO L225 Difference]: With dead ends: 131 [2021-12-06 17:15:19,073 INFO L226 Difference]: Without dead ends: 131 [2021-12-06 17:15:19,073 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-12-06 17:15:19,074 INFO L933 BasicCegarLoop]: 84 mSDtfsCounter, 8 mSDsluCounter, 152 mSDsCounter, 0 mSdLazyCounter, 126 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 236 SdHoareTripleChecker+Invalid, 129 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 126 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-06 17:15:19,074 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8 Valid, 236 Invalid, 129 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 126 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-06 17:15:19,075 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 131 states. [2021-12-06 17:15:19,077 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 131 to 131. [2021-12-06 17:15:19,077 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 131 states, 106 states have (on average 1.330188679245283) internal successors, (141), 130 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) [2021-12-06 17:15:19,078 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 131 states to 131 states and 141 transitions. [2021-12-06 17:15:19,078 INFO L78 Accepts]: Start accepts. Automaton has 131 states and 141 transitions. Word has length 25 [2021-12-06 17:15:19,078 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 17:15:19,078 INFO L470 AbstractCegarLoop]: Abstraction has 131 states and 141 transitions. [2021-12-06 17:15:19,078 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.0) internal successors, (25), 5 states have internal predecessors, (25), 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) [2021-12-06 17:15:19,078 INFO L276 IsEmpty]: Start isEmpty. Operand 131 states and 141 transitions. [2021-12-06 17:15:19,079 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-12-06 17:15:19,079 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 17:15:19,079 INFO L514 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, 1, 1, 1, 1, 1] [2021-12-06 17:15:19,079 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-12-06 17:15:19,079 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr42REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 60 more)] === [2021-12-06 17:15:19,080 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 17:15:19,080 INFO L85 PathProgramCache]: Analyzing trace with hash -1096862923, now seen corresponding path program 1 times [2021-12-06 17:15:19,080 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 17:15:19,080 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1171653085] [2021-12-06 17:15:19,080 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 17:15:19,080 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 17:15:19,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:15:19,200 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 17:15:19,200 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 17:15:19,200 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1171653085] [2021-12-06 17:15:19,200 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1171653085] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 17:15:19,200 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 17:15:19,200 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-12-06 17:15:19,200 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1811474076] [2021-12-06 17:15:19,200 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 17:15:19,201 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-12-06 17:15:19,201 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 17:15:19,201 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-12-06 17:15:19,201 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2021-12-06 17:15:19,201 INFO L87 Difference]: Start difference. First operand 131 states and 141 transitions. Second operand has 12 states, 11 states have (on average 2.5454545454545454) internal successors, (28), 12 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 17:15:19,456 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 17:15:19,456 INFO L93 Difference]: Finished difference Result 185 states and 190 transitions. [2021-12-06 17:15:19,456 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-06 17:15:19,456 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.5454545454545454) internal successors, (28), 12 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-12-06 17:15:19,457 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 17:15:19,457 INFO L225 Difference]: With dead ends: 185 [2021-12-06 17:15:19,458 INFO L226 Difference]: Without dead ends: 185 [2021-12-06 17:15:19,458 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 76 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=122, Invalid=298, Unknown=0, NotChecked=0, Total=420 [2021-12-06 17:15:19,459 INFO L933 BasicCegarLoop]: 50 mSDtfsCounter, 178 mSDsluCounter, 290 mSDsCounter, 0 mSdLazyCounter, 569 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 178 SdHoareTripleChecker+Valid, 340 SdHoareTripleChecker+Invalid, 602 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 569 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-12-06 17:15:19,459 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [178 Valid, 340 Invalid, 602 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 569 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-12-06 17:15:19,460 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 185 states. [2021-12-06 17:15:19,462 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 185 to 137. [2021-12-06 17:15:19,462 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 137 states, 112 states have (on average 1.3214285714285714) internal successors, (148), 136 states have internal predecessors, (148), 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) [2021-12-06 17:15:19,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 137 states to 137 states and 148 transitions. [2021-12-06 17:15:19,463 INFO L78 Accepts]: Start accepts. Automaton has 137 states and 148 transitions. Word has length 28 [2021-12-06 17:15:19,463 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 17:15:19,463 INFO L470 AbstractCegarLoop]: Abstraction has 137 states and 148 transitions. [2021-12-06 17:15:19,463 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 2.5454545454545454) internal successors, (28), 12 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 17:15:19,464 INFO L276 IsEmpty]: Start isEmpty. Operand 137 states and 148 transitions. [2021-12-06 17:15:19,464 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-12-06 17:15:19,464 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 17:15:19,464 INFO L514 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, 1, 1, 1, 1, 1] [2021-12-06 17:15:19,464 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-12-06 17:15:19,464 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr43REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 60 more)] === [2021-12-06 17:15:19,465 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 17:15:19,465 INFO L85 PathProgramCache]: Analyzing trace with hash -1096862922, now seen corresponding path program 1 times [2021-12-06 17:15:19,465 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 17:15:19,465 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1764155249] [2021-12-06 17:15:19,465 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 17:15:19,465 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 17:15:19,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:15:19,623 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 17:15:19,623 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 17:15:19,623 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1764155249] [2021-12-06 17:15:19,623 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1764155249] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 17:15:19,624 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 17:15:19,624 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-12-06 17:15:19,624 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1779699415] [2021-12-06 17:15:19,624 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 17:15:19,624 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-12-06 17:15:19,624 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 17:15:19,625 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-12-06 17:15:19,625 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2021-12-06 17:15:19,625 INFO L87 Difference]: Start difference. First operand 137 states and 148 transitions. Second operand has 12 states, 11 states have (on average 2.5454545454545454) internal successors, (28), 12 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 17:15:19,962 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 17:15:19,962 INFO L93 Difference]: Finished difference Result 217 states and 221 transitions. [2021-12-06 17:15:19,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-12-06 17:15:19,963 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.5454545454545454) internal successors, (28), 12 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-12-06 17:15:19,963 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 17:15:19,964 INFO L225 Difference]: With dead ends: 217 [2021-12-06 17:15:19,964 INFO L226 Difference]: Without dead ends: 217 [2021-12-06 17:15:19,965 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 74 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=108, Invalid=312, Unknown=0, NotChecked=0, Total=420 [2021-12-06 17:15:19,965 INFO L933 BasicCegarLoop]: 53 mSDtfsCounter, 217 mSDsluCounter, 288 mSDsCounter, 0 mSdLazyCounter, 515 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 217 SdHoareTripleChecker+Valid, 341 SdHoareTripleChecker+Invalid, 551 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 515 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-12-06 17:15:19,966 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [217 Valid, 341 Invalid, 551 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 515 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-12-06 17:15:19,966 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 217 states. [2021-12-06 17:15:19,969 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 217 to 137. [2021-12-06 17:15:19,969 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 137 states, 112 states have (on average 1.3125) internal successors, (147), 136 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) [2021-12-06 17:15:19,970 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 137 states to 137 states and 147 transitions. [2021-12-06 17:15:19,970 INFO L78 Accepts]: Start accepts. Automaton has 137 states and 147 transitions. Word has length 28 [2021-12-06 17:15:19,970 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 17:15:19,970 INFO L470 AbstractCegarLoop]: Abstraction has 137 states and 147 transitions. [2021-12-06 17:15:19,970 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 2.5454545454545454) internal successors, (28), 12 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 17:15:19,970 INFO L276 IsEmpty]: Start isEmpty. Operand 137 states and 147 transitions. [2021-12-06 17:15:19,971 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2021-12-06 17:15:19,971 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 17:15:19,971 INFO L514 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, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 17:15:19,971 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-12-06 17:15:19,971 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr44ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 60 more)] === [2021-12-06 17:15:19,971 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 17:15:19,971 INFO L85 PathProgramCache]: Analyzing trace with hash -1818276907, now seen corresponding path program 1 times [2021-12-06 17:15:19,972 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 17:15:19,972 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1313270814] [2021-12-06 17:15:19,972 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 17:15:19,972 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 17:15:19,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:15:20,145 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 17:15:20,145 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 17:15:20,146 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1313270814] [2021-12-06 17:15:20,146 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1313270814] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 17:15:20,146 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 17:15:20,146 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2021-12-06 17:15:20,146 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1262516353] [2021-12-06 17:15:20,146 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 17:15:20,146 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-12-06 17:15:20,146 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 17:15:20,146 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-12-06 17:15:20,147 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=145, Unknown=0, NotChecked=0, Total=182 [2021-12-06 17:15:20,147 INFO L87 Difference]: Start difference. First operand 137 states and 147 transitions. Second operand has 14 states, 14 states have (on average 2.142857142857143) internal successors, (30), 14 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 17:15:20,558 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 17:15:20,558 INFO L93 Difference]: Finished difference Result 215 states and 219 transitions. [2021-12-06 17:15:20,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-12-06 17:15:20,558 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 2.142857142857143) internal successors, (30), 14 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 30 [2021-12-06 17:15:20,559 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 17:15:20,559 INFO L225 Difference]: With dead ends: 215 [2021-12-06 17:15:20,559 INFO L226 Difference]: Without dead ends: 215 [2021-12-06 17:15:20,560 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 105 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=138, Invalid=512, Unknown=0, NotChecked=0, Total=650 [2021-12-06 17:15:20,560 INFO L933 BasicCegarLoop]: 52 mSDtfsCounter, 301 mSDsluCounter, 425 mSDsCounter, 0 mSdLazyCounter, 656 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 301 SdHoareTripleChecker+Valid, 477 SdHoareTripleChecker+Invalid, 692 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 656 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-12-06 17:15:20,560 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [301 Valid, 477 Invalid, 692 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 656 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-12-06 17:15:20,561 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 215 states. [2021-12-06 17:15:20,562 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 215 to 138. [2021-12-06 17:15:20,563 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 138 states, 113 states have (on average 1.3097345132743363) internal successors, (148), 137 states have internal predecessors, (148), 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) [2021-12-06 17:15:20,563 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138 states to 138 states and 148 transitions. [2021-12-06 17:15:20,563 INFO L78 Accepts]: Start accepts. Automaton has 138 states and 148 transitions. Word has length 30 [2021-12-06 17:15:20,563 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 17:15:20,563 INFO L470 AbstractCegarLoop]: Abstraction has 138 states and 148 transitions. [2021-12-06 17:15:20,563 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 2.142857142857143) internal successors, (30), 14 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 17:15:20,563 INFO L276 IsEmpty]: Start isEmpty. Operand 138 states and 148 transitions. [2021-12-06 17:15:20,564 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2021-12-06 17:15:20,564 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 17:15:20,564 INFO L514 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 17:15:20,564 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-12-06 17:15:20,564 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr54ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 60 more)] === [2021-12-06 17:15:20,564 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 17:15:20,564 INFO L85 PathProgramCache]: Analyzing trace with hash -245371248, now seen corresponding path program 1 times [2021-12-06 17:15:20,564 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 17:15:20,564 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1997900336] [2021-12-06 17:15:20,565 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 17:15:20,565 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 17:15:20,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:15:20,595 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 17:15:20,595 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 17:15:20,595 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1997900336] [2021-12-06 17:15:20,596 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1997900336] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 17:15:20,596 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 17:15:20,596 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-06 17:15:20,596 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1336498366] [2021-12-06 17:15:20,596 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 17:15:20,596 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-06 17:15:20,596 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 17:15:20,596 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-06 17:15:20,596 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-06 17:15:20,597 INFO L87 Difference]: Start difference. First operand 138 states and 148 transitions. Second operand has 5 states, 5 states have (on average 7.2) internal successors, (36), 5 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 17:15:20,654 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 17:15:20,654 INFO L93 Difference]: Finished difference Result 136 states and 145 transitions. [2021-12-06 17:15:20,654 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-06 17:15:20,654 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.2) internal successors, (36), 5 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 36 [2021-12-06 17:15:20,655 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 17:15:20,655 INFO L225 Difference]: With dead ends: 136 [2021-12-06 17:15:20,655 INFO L226 Difference]: Without dead ends: 136 [2021-12-06 17:15:20,655 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-12-06 17:15:20,656 INFO L933 BasicCegarLoop]: 76 mSDtfsCounter, 21 mSDsluCounter, 135 mSDsCounter, 0 mSdLazyCounter, 130 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 211 SdHoareTripleChecker+Invalid, 133 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 130 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-06 17:15:20,656 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [21 Valid, 211 Invalid, 133 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 130 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-06 17:15:20,656 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 136 states. [2021-12-06 17:15:20,658 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 136 to 136. [2021-12-06 17:15:20,658 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 136 states, 112 states have (on average 1.2946428571428572) internal successors, (145), 135 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) [2021-12-06 17:15:20,659 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 136 states to 136 states and 145 transitions. [2021-12-06 17:15:20,659 INFO L78 Accepts]: Start accepts. Automaton has 136 states and 145 transitions. Word has length 36 [2021-12-06 17:15:20,659 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 17:15:20,659 INFO L470 AbstractCegarLoop]: Abstraction has 136 states and 145 transitions. [2021-12-06 17:15:20,659 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.2) internal successors, (36), 5 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 17:15:20,659 INFO L276 IsEmpty]: Start isEmpty. Operand 136 states and 145 transitions. [2021-12-06 17:15:20,659 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-12-06 17:15:20,659 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 17:15:20,659 INFO L514 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 17:15:20,659 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2021-12-06 17:15:20,660 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr50ASSERT_VIOLATIONMEMORY_FREE === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 60 more)] === [2021-12-06 17:15:20,660 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 17:15:20,660 INFO L85 PathProgramCache]: Analyzing trace with hash 984809453, now seen corresponding path program 1 times [2021-12-06 17:15:20,660 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 17:15:20,660 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1100088755] [2021-12-06 17:15:20,660 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 17:15:20,660 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 17:15:20,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:15:20,693 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 17:15:20,694 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 17:15:20,694 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1100088755] [2021-12-06 17:15:20,694 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1100088755] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 17:15:20,694 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 17:15:20,694 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-06 17:15:20,694 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1420060529] [2021-12-06 17:15:20,694 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 17:15:20,694 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-06 17:15:20,694 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 17:15:20,695 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-06 17:15:20,695 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-06 17:15:20,695 INFO L87 Difference]: Start difference. First operand 136 states and 145 transitions. Second operand has 4 states, 3 states have (on average 12.333333333333334) internal successors, (37), 4 states have internal predecessors, (37), 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) [2021-12-06 17:15:20,764 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 17:15:20,764 INFO L93 Difference]: Finished difference Result 152 states and 157 transitions. [2021-12-06 17:15:20,764 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-06 17:15:20,764 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 12.333333333333334) internal successors, (37), 4 states have internal predecessors, (37), 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 37 [2021-12-06 17:15:20,764 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 17:15:20,765 INFO L225 Difference]: With dead ends: 152 [2021-12-06 17:15:20,765 INFO L226 Difference]: Without dead ends: 152 [2021-12-06 17:15:20,765 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-06 17:15:20,766 INFO L933 BasicCegarLoop]: 56 mSDtfsCounter, 135 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 91 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 135 SdHoareTripleChecker+Valid, 92 SdHoareTripleChecker+Invalid, 98 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 91 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-06 17:15:20,766 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [135 Valid, 92 Invalid, 98 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 91 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-06 17:15:20,766 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 152 states. [2021-12-06 17:15:20,768 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 152 to 138. [2021-12-06 17:15:20,768 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 138 states, 114 states have (on average 1.2894736842105263) internal successors, (147), 137 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) [2021-12-06 17:15:20,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138 states to 138 states and 147 transitions. [2021-12-06 17:15:20,769 INFO L78 Accepts]: Start accepts. Automaton has 138 states and 147 transitions. Word has length 37 [2021-12-06 17:15:20,769 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 17:15:20,769 INFO L470 AbstractCegarLoop]: Abstraction has 138 states and 147 transitions. [2021-12-06 17:15:20,769 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 12.333333333333334) internal successors, (37), 4 states have internal predecessors, (37), 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) [2021-12-06 17:15:20,769 INFO L276 IsEmpty]: Start isEmpty. Operand 138 states and 147 transitions. [2021-12-06 17:15:20,769 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-12-06 17:15:20,769 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 17:15:20,769 INFO L514 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 17:15:20,770 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2021-12-06 17:15:20,770 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr34ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 60 more)] === [2021-12-06 17:15:20,770 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 17:15:20,770 INFO L85 PathProgramCache]: Analyzing trace with hash -27234752, now seen corresponding path program 1 times [2021-12-06 17:15:20,770 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 17:15:20,770 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [465930236] [2021-12-06 17:15:20,770 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 17:15:20,770 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 17:15:20,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:15:21,105 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 17:15:21,105 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 17:15:21,105 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [465930236] [2021-12-06 17:15:21,105 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [465930236] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-06 17:15:21,106 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [157354816] [2021-12-06 17:15:21,106 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 17:15:21,106 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 17:15:21,106 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2584da4-be1a-4772-8870-55a1267c6fe3/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 17:15:21,107 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2584da4-be1a-4772-8870-55a1267c6fe3/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-06 17:15:21,107 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2584da4-be1a-4772-8870-55a1267c6fe3/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-12-06 17:15:21,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:15:21,190 INFO L263 TraceCheckSpWp]: Trace formula consists of 292 conjuncts, 58 conjunts are in the unsatisfiable core [2021-12-06 17:15:21,198 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 17:15:21,248 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-12-06 17:15:21,270 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 13 treesize of output 9 [2021-12-06 17:15:21,337 INFO L354 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2021-12-06 17:15:21,337 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2021-12-06 17:15:21,397 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 [2021-12-06 17:15:21,405 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:15:21,406 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2021-12-06 17:15:21,528 INFO L354 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2021-12-06 17:15:21,528 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 38 treesize of output 37 [2021-12-06 17:15:21,534 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 22 [2021-12-06 17:15:21,574 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 25 treesize of output 13 [2021-12-06 17:15:21,625 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2021-12-06 17:15:21,674 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2021-12-06 17:15:21,698 INFO L354 Elim1Store]: treesize reduction 8, result has 52.9 percent of original size [2021-12-06 17:15:21,698 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 16 treesize of output 18 [2021-12-06 17:15:21,717 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-12-06 17:15:21,725 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 16 treesize of output 18 [2021-12-06 17:15:21,802 INFO L354 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2021-12-06 17:15:21,802 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 37 treesize of output 36 [2021-12-06 17:15:21,806 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 22 [2021-12-06 17:15:21,828 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 12 [2021-12-06 17:15:21,838 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2021-12-06 17:15:21,863 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2021-12-06 17:15:21,866 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 17:15:21,866 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-06 17:15:21,898 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_874 (Array Int Int))) (= (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_#t~mem8#1.base| v_ArrVal_874) |c_ULTIMATE.start_main_~head~0#1.base|) (+ |c_ULTIMATE.start_main_~head~0#1.offset| 8)) 0)) is different from false [2021-12-06 17:15:21,904 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_874 (Array Int Int))) (= (select (select (store |c_#memory_int| (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~x~0#1.base|) |c_ULTIMATE.start_main_~x~0#1.offset|) v_ArrVal_874) |c_ULTIMATE.start_main_~head~0#1.base|) (+ |c_ULTIMATE.start_main_~head~0#1.offset| 8)) 0)) is different from false [2021-12-06 17:15:21,913 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_872 (Array Int Int)) (v_ArrVal_874 (Array Int Int)) (v_ArrVal_873 (Array Int Int))) (= (select (select (store (store |c_#memory_int| |c_ULTIMATE.start_main_#t~mem7#1.base| v_ArrVal_872) (select (select (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_#t~mem7#1.base| v_ArrVal_873) |c_ULTIMATE.start_main_~x~0#1.base|) |c_ULTIMATE.start_main_~x~0#1.offset|) v_ArrVal_874) |c_ULTIMATE.start_main_~head~0#1.base|) (+ |c_ULTIMATE.start_main_~head~0#1.offset| 8)) 0)) is different from false [2021-12-06 17:15:21,920 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_872 (Array Int Int)) (v_ArrVal_874 (Array Int Int)) (v_ArrVal_873 (Array Int Int))) (= (select (select (let ((.cse0 (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~x~0#1.base|) |c_ULTIMATE.start_main_~x~0#1.offset|))) (store (store |c_#memory_int| .cse0 v_ArrVal_872) (select (select (store |c_#memory_$Pointer$.base| .cse0 v_ArrVal_873) |c_ULTIMATE.start_main_~x~0#1.base|) |c_ULTIMATE.start_main_~x~0#1.offset|) v_ArrVal_874)) |c_ULTIMATE.start_main_~head~0#1.base|) (+ |c_ULTIMATE.start_main_~head~0#1.offset| 8)) 0)) is different from false [2021-12-06 17:15:21,930 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-12-06 17:15:21,930 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 1 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 34 [2021-12-06 17:15:21,935 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 60 treesize of output 52 [2021-12-06 17:15:21,939 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 22 [2021-12-06 17:15:21,987 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_869 (Array Int Int)) (v_ArrVal_874 (Array Int Int))) (let ((.cse0 (= |c_ULTIMATE.start_main_#t~malloc6#1.base| |c_ULTIMATE.start_main_~x~0#1.base|))) (or (and .cse0 (forall ((v_arrayElimCell_19 Int) (v_ArrVal_872 (Array Int Int))) (= (select (select (store (store (store |c_#memory_int| |c_ULTIMATE.start_main_~x~0#1.base| v_ArrVal_869) |c_ULTIMATE.start_main_#t~malloc6#1.base| v_ArrVal_872) v_arrayElimCell_19 v_ArrVal_874) |c_ULTIMATE.start_main_~head~0#1.base|) (+ |c_ULTIMATE.start_main_~head~0#1.offset| 8)) 0))) (and (= (select (select (store (store |c_#memory_int| |c_ULTIMATE.start_main_~x~0#1.base| v_ArrVal_869) |c_ULTIMATE.start_main_#t~malloc6#1.base| v_ArrVal_874) |c_ULTIMATE.start_main_~head~0#1.base|) (+ |c_ULTIMATE.start_main_~head~0#1.offset| 8)) 0) (not .cse0))))) is different from false [2021-12-06 17:15:23,661 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-12-06 17:15:23,661 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 1 new quantified variables, introduced 1 case distinctions, treesize of input 125 treesize of output 101 [2021-12-06 17:15:23,665 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 198 treesize of output 178 [2021-12-06 17:15:23,669 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 178 treesize of output 170 [2021-12-06 17:15:30,114 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_865 (Array Int Int)) (v_ArrVal_862 Int) (v_ArrVal_869 (Array Int Int)) (|v_ULTIMATE.start_main_#t~malloc6#1.base_6| Int) (|v_ULTIMATE.start_main_#t~malloc3#1.base_6| Int) (v_arrayElimCell_21 Int) (v_ArrVal_874 (Array Int Int))) (let ((.cse2 (= |v_ULTIMATE.start_main_#t~malloc6#1.base_6| v_arrayElimCell_21)) (.cse1 (= |v_ULTIMATE.start_main_#t~malloc3#1.base_6| |c_ULTIMATE.start_main_~x~0#1.base|)) (.cse0 (store |c_#valid| |v_ULTIMATE.start_main_#t~malloc3#1.base_6| 1))) (or (not (= (select .cse0 |v_ULTIMATE.start_main_#t~malloc6#1.base_6|) 0)) (and .cse1 (forall ((v_arrayElimCell_19 Int) (v_ArrVal_872 (Array Int Int))) (= (select (select (store (store (store (store (store |c_#memory_int| |c_ULTIMATE.start_main_~x~0#1.base| (store (select |c_#memory_int| |c_ULTIMATE.start_main_~x~0#1.base|) |c_ULTIMATE.start_main_~x~0#1.offset| v_ArrVal_862)) |v_ULTIMATE.start_main_#t~malloc3#1.base_6| v_ArrVal_865) v_arrayElimCell_21 v_ArrVal_869) |v_ULTIMATE.start_main_#t~malloc6#1.base_6| v_ArrVal_872) v_arrayElimCell_19 v_ArrVal_874) |c_ULTIMATE.start_main_~head~0#1.base|) (+ |c_ULTIMATE.start_main_~head~0#1.offset| 8)) 0)) .cse2) (let ((.cse5 (not .cse1))) (and (let ((.cse3 (store |c_#memory_int| |c_ULTIMATE.start_main_~x~0#1.base| (store (select |c_#memory_int| |c_ULTIMATE.start_main_~x~0#1.base|) |c_ULTIMATE.start_main_~x~0#1.offset| v_ArrVal_862))) (.cse4 (+ |c_ULTIMATE.start_main_~head~0#1.offset| 8))) (or (and (= (select (select (store (store .cse3 |v_ULTIMATE.start_main_#t~malloc3#1.base_6| v_ArrVal_869) |v_ULTIMATE.start_main_#t~malloc6#1.base_6| v_ArrVal_874) |c_ULTIMATE.start_main_~head~0#1.base|) .cse4) 0) .cse5) (and (= (select (select (store (store (store .cse3 |v_ULTIMATE.start_main_#t~malloc3#1.base_6| v_ArrVal_865) v_arrayElimCell_21 v_ArrVal_869) |v_ULTIMATE.start_main_#t~malloc6#1.base_6| v_ArrVal_874) |c_ULTIMATE.start_main_~head~0#1.base|) .cse4) 0) .cse1))) (or (not .cse2) .cse5))) (not (= (select |c_#valid| |v_ULTIMATE.start_main_#t~malloc3#1.base_6|) 0)) (not (= (select .cse0 |c_ULTIMATE.start_main_~x~0#1.base|) 1))))) is different from false [2021-12-06 17:15:46,081 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_865 (Array Int Int)) (v_ArrVal_862 Int) (v_ArrVal_869 (Array Int Int)) (|v_ULTIMATE.start_main_#t~malloc6#1.base_6| Int) (|v_ULTIMATE.start_main_#t~malloc3#1.base_6| Int) (v_arrayElimCell_21 Int) (|v_ULTIMATE.start_main_~x~0#1.offset_57| Int) (v_ArrVal_874 (Array Int Int))) (let ((.cse4 (= |v_ULTIMATE.start_main_#t~malloc3#1.base_6| |c_ULTIMATE.start_main_~head~0#1.base|)) (.cse5 (= |v_ULTIMATE.start_main_#t~malloc6#1.base_6| v_arrayElimCell_21)) (.cse0 (store |c_#valid| |v_ULTIMATE.start_main_#t~malloc3#1.base_6| 1))) (or (not (= (select .cse0 |v_ULTIMATE.start_main_#t~malloc6#1.base_6|) 0)) (let ((.cse3 (not .cse4))) (and (let ((.cse1 (store |c_#memory_int| |c_ULTIMATE.start_main_~head~0#1.base| (store (select |c_#memory_int| |c_ULTIMATE.start_main_~head~0#1.base|) |v_ULTIMATE.start_main_~x~0#1.offset_57| v_ArrVal_862))) (.cse2 (+ |c_ULTIMATE.start_main_~head~0#1.offset| 8))) (or (and (= (select (select (store (store .cse1 |v_ULTIMATE.start_main_#t~malloc3#1.base_6| v_ArrVal_869) |v_ULTIMATE.start_main_#t~malloc6#1.base_6| v_ArrVal_874) |c_ULTIMATE.start_main_~head~0#1.base|) .cse2) 0) .cse3) (and .cse4 (= (select (select (store (store (store .cse1 |v_ULTIMATE.start_main_#t~malloc3#1.base_6| v_ArrVal_865) v_arrayElimCell_21 v_ArrVal_869) |v_ULTIMATE.start_main_#t~malloc6#1.base_6| v_ArrVal_874) |c_ULTIMATE.start_main_~head~0#1.base|) .cse2) 0)))) (or (not .cse5) .cse3))) (< |c_ULTIMATE.start_main_~head~0#1.offset| |v_ULTIMATE.start_main_~x~0#1.offset_57|) (and .cse4 (forall ((v_arrayElimCell_19 Int) (v_ArrVal_872 (Array Int Int))) (= (select (select (store (store (store (store (store |c_#memory_int| |c_ULTIMATE.start_main_~head~0#1.base| (store (select |c_#memory_int| |c_ULTIMATE.start_main_~head~0#1.base|) |v_ULTIMATE.start_main_~x~0#1.offset_57| v_ArrVal_862)) |v_ULTIMATE.start_main_#t~malloc3#1.base_6| v_ArrVal_865) v_arrayElimCell_21 v_ArrVal_869) |v_ULTIMATE.start_main_#t~malloc6#1.base_6| v_ArrVal_872) v_arrayElimCell_19 v_ArrVal_874) |c_ULTIMATE.start_main_~head~0#1.base|) (+ |c_ULTIMATE.start_main_~head~0#1.offset| 8)) 0)) .cse5) (not (= (select .cse0 |c_ULTIMATE.start_main_~head~0#1.base|) 1)) (not (= (select |c_#valid| |v_ULTIMATE.start_main_#t~malloc3#1.base_6|) 0))))) is different from false [2021-12-06 17:15:46,108 INFO L173 IndexEqualityManager]: detected equality via solver [2021-12-06 17:15:46,113 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-12-06 17:15:46,113 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 1 new quantified variables, introduced 2 case distinctions, treesize of input 121 treesize of output 100 [2021-12-06 17:15:46,117 INFO L173 IndexEqualityManager]: detected equality via solver [2021-12-06 17:15:46,120 INFO L173 IndexEqualityManager]: detected equality via solver [2021-12-06 17:15:46,121 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 398 treesize of output 364 [2021-12-06 17:15:46,136 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 364 treesize of output 332 [2021-12-06 17:15:46,142 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 332 treesize of output 320 [2021-12-06 17:15:46,148 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 320 treesize of output 292 [2021-12-06 17:15:46,340 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 2 not checked. [2021-12-06 17:15:46,340 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [157354816] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-06 17:15:46,340 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-06 17:15:46,340 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 17, 20] total 43 [2021-12-06 17:15:46,340 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1115602504] [2021-12-06 17:15:46,340 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-06 17:15:46,340 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 43 states [2021-12-06 17:15:46,341 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 17:15:46,341 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 43 interpolants. [2021-12-06 17:15:46,341 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=215, Invalid=1042, Unknown=31, NotChecked=518, Total=1806 [2021-12-06 17:15:46,342 INFO L87 Difference]: Start difference. First operand 138 states and 147 transitions. Second operand has 43 states, 43 states have (on average 2.046511627906977) internal successors, (88), 43 states have internal predecessors, (88), 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) [2021-12-06 17:15:47,323 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 17:15:47,324 INFO L93 Difference]: Finished difference Result 256 states and 265 transitions. [2021-12-06 17:15:47,324 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-12-06 17:15:47,324 INFO L78 Accepts]: Start accepts. Automaton has has 43 states, 43 states have (on average 2.046511627906977) internal successors, (88), 43 states have internal predecessors, (88), 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 37 [2021-12-06 17:15:47,324 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 17:15:47,325 INFO L225 Difference]: With dead ends: 256 [2021-12-06 17:15:47,325 INFO L226 Difference]: Without dead ends: 256 [2021-12-06 17:15:47,326 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 115 GetRequests, 54 SyntacticMatches, 4 SemanticMatches, 57 ConstructedPredicates, 7 IntricatePredicates, 0 DeprecatedPredicates, 727 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=460, Invalid=2186, Unknown=34, NotChecked=742, Total=3422 [2021-12-06 17:15:47,327 INFO L933 BasicCegarLoop]: 84 mSDtfsCounter, 373 mSDsluCounter, 1086 mSDsCounter, 0 mSdLazyCounter, 1149 mSolverCounterSat, 74 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 373 SdHoareTripleChecker+Valid, 1170 SdHoareTripleChecker+Invalid, 3300 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 74 IncrementalHoareTripleChecker+Valid, 1149 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 2077 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-12-06 17:15:47,327 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [373 Valid, 1170 Invalid, 3300 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [74 Valid, 1149 Invalid, 0 Unknown, 2077 Unchecked, 0.4s Time] [2021-12-06 17:15:47,328 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 256 states. [2021-12-06 17:15:47,329 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 256 to 166. [2021-12-06 17:15:47,330 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 166 states, 142 states have (on average 1.2464788732394365) internal successors, (177), 165 states have internal predecessors, (177), 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) [2021-12-06 17:15:47,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 166 states to 166 states and 177 transitions. [2021-12-06 17:15:47,330 INFO L78 Accepts]: Start accepts. Automaton has 166 states and 177 transitions. Word has length 37 [2021-12-06 17:15:47,330 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 17:15:47,331 INFO L470 AbstractCegarLoop]: Abstraction has 166 states and 177 transitions. [2021-12-06 17:15:47,331 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 43 states, 43 states have (on average 2.046511627906977) internal successors, (88), 43 states have internal predecessors, (88), 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) [2021-12-06 17:15:47,331 INFO L276 IsEmpty]: Start isEmpty. Operand 166 states and 177 transitions. [2021-12-06 17:15:47,331 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2021-12-06 17:15:47,331 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 17:15:47,331 INFO L514 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 17:15:47,352 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2584da4-be1a-4772-8870-55a1267c6fe3/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-12-06 17:15:47,532 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2584da4-be1a-4772-8870-55a1267c6fe3/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2021-12-06 17:15:47,533 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr57ASSERT_VIOLATIONMEMORY_FREE === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 60 more)] === [2021-12-06 17:15:47,534 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 17:15:47,534 INFO L85 PathProgramCache]: Analyzing trace with hash 421565270, now seen corresponding path program 1 times [2021-12-06 17:15:47,535 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 17:15:47,535 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [673156326] [2021-12-06 17:15:47,535 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 17:15:47,536 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 17:15:47,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:15:47,749 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 17:15:47,749 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 17:15:47,749 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [673156326] [2021-12-06 17:15:47,749 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [673156326] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 17:15:47,749 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 17:15:47,749 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-12-06 17:15:47,749 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2056631753] [2021-12-06 17:15:47,749 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 17:15:47,750 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-12-06 17:15:47,750 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 17:15:47,750 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-12-06 17:15:47,750 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2021-12-06 17:15:47,750 INFO L87 Difference]: Start difference. First operand 166 states and 177 transitions. Second operand has 12 states, 11 states have (on average 3.4545454545454546) internal successors, (38), 12 states have internal predecessors, (38), 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) [2021-12-06 17:15:48,013 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 17:15:48,013 INFO L93 Difference]: Finished difference Result 225 states and 231 transitions. [2021-12-06 17:15:48,013 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-12-06 17:15:48,014 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 3.4545454545454546) internal successors, (38), 12 states have internal predecessors, (38), 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 38 [2021-12-06 17:15:48,014 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 17:15:48,015 INFO L225 Difference]: With dead ends: 225 [2021-12-06 17:15:48,015 INFO L226 Difference]: Without dead ends: 225 [2021-12-06 17:15:48,015 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=128, Invalid=334, Unknown=0, NotChecked=0, Total=462 [2021-12-06 17:15:48,015 INFO L933 BasicCegarLoop]: 57 mSDtfsCounter, 245 mSDsluCounter, 263 mSDsCounter, 0 mSdLazyCounter, 355 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 245 SdHoareTripleChecker+Valid, 320 SdHoareTripleChecker+Invalid, 418 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 355 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-12-06 17:15:48,016 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [245 Valid, 320 Invalid, 418 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 355 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-12-06 17:15:48,016 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 225 states. [2021-12-06 17:15:48,018 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 225 to 175. [2021-12-06 17:15:48,018 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 175 states, 151 states have (on average 1.2384105960264902) internal successors, (187), 174 states have internal predecessors, (187), 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) [2021-12-06 17:15:48,019 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 175 states to 175 states and 187 transitions. [2021-12-06 17:15:48,019 INFO L78 Accepts]: Start accepts. Automaton has 175 states and 187 transitions. Word has length 38 [2021-12-06 17:15:48,019 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 17:15:48,019 INFO L470 AbstractCegarLoop]: Abstraction has 175 states and 187 transitions. [2021-12-06 17:15:48,019 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 3.4545454545454546) internal successors, (38), 12 states have internal predecessors, (38), 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) [2021-12-06 17:15:48,019 INFO L276 IsEmpty]: Start isEmpty. Operand 175 states and 187 transitions. [2021-12-06 17:15:48,019 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2021-12-06 17:15:48,019 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 17:15:48,020 INFO L514 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 17:15:48,020 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2021-12-06 17:15:48,020 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr58ASSERT_VIOLATIONMEMORY_FREE === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 60 more)] === [2021-12-06 17:15:48,020 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 17:15:48,020 INFO L85 PathProgramCache]: Analyzing trace with hash 183621750, now seen corresponding path program 1 times [2021-12-06 17:15:48,020 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 17:15:48,020 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [679233086] [2021-12-06 17:15:48,020 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 17:15:48,020 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 17:15:48,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:15:48,130 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 17:15:48,130 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 17:15:48,130 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [679233086] [2021-12-06 17:15:48,130 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [679233086] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 17:15:48,131 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 17:15:48,131 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-12-06 17:15:48,131 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1929177080] [2021-12-06 17:15:48,131 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 17:15:48,131 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-12-06 17:15:48,131 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 17:15:48,132 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-12-06 17:15:48,132 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2021-12-06 17:15:48,132 INFO L87 Difference]: Start difference. First operand 175 states and 187 transitions. Second operand has 12 states, 11 states have (on average 3.5454545454545454) internal successors, (39), 12 states have internal predecessors, (39), 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) [2021-12-06 17:15:48,398 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 17:15:48,399 INFO L93 Difference]: Finished difference Result 224 states and 230 transitions. [2021-12-06 17:15:48,399 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-12-06 17:15:48,399 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 3.5454545454545454) internal successors, (39), 12 states have internal predecessors, (39), 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 39 [2021-12-06 17:15:48,399 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 17:15:48,400 INFO L225 Difference]: With dead ends: 224 [2021-12-06 17:15:48,400 INFO L226 Difference]: Without dead ends: 224 [2021-12-06 17:15:48,400 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 87 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=123, Invalid=339, Unknown=0, NotChecked=0, Total=462 [2021-12-06 17:15:48,401 INFO L933 BasicCegarLoop]: 59 mSDtfsCounter, 172 mSDsluCounter, 261 mSDsCounter, 0 mSdLazyCounter, 463 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 172 SdHoareTripleChecker+Valid, 320 SdHoareTripleChecker+Invalid, 504 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 463 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-12-06 17:15:48,401 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [172 Valid, 320 Invalid, 504 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 463 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-12-06 17:15:48,401 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 224 states. [2021-12-06 17:15:48,403 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 224 to 176. [2021-12-06 17:15:48,403 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 176 states, 152 states have (on average 1.236842105263158) internal successors, (188), 175 states have internal predecessors, (188), 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) [2021-12-06 17:15:48,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 176 states to 176 states and 188 transitions. [2021-12-06 17:15:48,404 INFO L78 Accepts]: Start accepts. Automaton has 176 states and 188 transitions. Word has length 39 [2021-12-06 17:15:48,404 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 17:15:48,404 INFO L470 AbstractCegarLoop]: Abstraction has 176 states and 188 transitions. [2021-12-06 17:15:48,404 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 3.5454545454545454) internal successors, (39), 12 states have internal predecessors, (39), 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) [2021-12-06 17:15:48,404 INFO L276 IsEmpty]: Start isEmpty. Operand 176 states and 188 transitions. [2021-12-06 17:15:48,404 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2021-12-06 17:15:48,404 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 17:15:48,404 INFO L514 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 17:15:48,405 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2021-12-06 17:15:48,405 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr45REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 60 more)] === [2021-12-06 17:15:48,405 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 17:15:48,405 INFO L85 PathProgramCache]: Analyzing trace with hash 1509086814, now seen corresponding path program 1 times [2021-12-06 17:15:48,405 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 17:15:48,405 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [168420752] [2021-12-06 17:15:48,405 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 17:15:48,405 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 17:15:48,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:15:48,566 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 17:15:48,566 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 17:15:48,566 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [168420752] [2021-12-06 17:15:48,566 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [168420752] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-06 17:15:48,566 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [125886269] [2021-12-06 17:15:48,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 17:15:48,566 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 17:15:48,566 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2584da4-be1a-4772-8870-55a1267c6fe3/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 17:15:48,567 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2584da4-be1a-4772-8870-55a1267c6fe3/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-06 17:15:48,568 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2584da4-be1a-4772-8870-55a1267c6fe3/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-12-06 17:15:48,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:15:48,634 INFO L263 TraceCheckSpWp]: Trace formula consists of 263 conjuncts, 42 conjunts are in the unsatisfiable core [2021-12-06 17:15:48,636 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 17:15:48,694 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-12-06 17:15:48,694 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 [2021-12-06 17:15:48,716 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 [2021-12-06 17:15:48,772 INFO L354 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2021-12-06 17:15:48,772 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 19 treesize of output 22 [2021-12-06 17:15:48,798 INFO L354 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2021-12-06 17:15:48,798 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 19 treesize of output 22 [2021-12-06 17:15:49,024 INFO L173 IndexEqualityManager]: detected equality via solver [2021-12-06 17:15:49,025 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-12-06 17:15:49,025 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 25 treesize of output 16 [2021-12-06 17:15:49,037 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 14 [2021-12-06 17:15:49,039 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 17:15:49,039 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-06 17:15:49,075 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-12-06 17:15:49,075 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 25 treesize of output 29 [2021-12-06 17:15:49,464 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-12-06 17:15:49,465 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 1 new quantified variables, introduced 1 case distinctions, treesize of input 107 treesize of output 68 [2021-12-06 17:15:49,479 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-12-06 17:15:49,479 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 279 treesize of output 261 [2021-12-06 17:15:49,498 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-12-06 17:15:49,499 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 226 treesize of output 239 [2021-12-06 17:15:49,510 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-12-06 17:15:49,511 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 214 treesize of output 215 [2021-12-06 17:15:49,524 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-12-06 17:15:49,524 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 206 treesize of output 205 [2021-12-06 17:15:49,534 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 196 treesize of output 192 [2021-12-06 17:15:49,994 INFO L354 Elim1Store]: treesize reduction 5, result has 37.5 percent of original size [2021-12-06 17:15:49,995 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 13 treesize of output 12 [2021-12-06 17:15:50,103 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 17:15:50,103 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [125886269] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-06 17:15:50,103 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-06 17:15:50,103 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 18, 19] total 40 [2021-12-06 17:15:50,103 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [563631669] [2021-12-06 17:15:50,103 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-06 17:15:50,104 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 41 states [2021-12-06 17:15:50,104 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 17:15:50,104 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 41 interpolants. [2021-12-06 17:15:50,104 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=186, Invalid=1438, Unknown=16, NotChecked=0, Total=1640 [2021-12-06 17:15:50,105 INFO L87 Difference]: Start difference. First operand 176 states and 188 transitions. Second operand has 41 states, 40 states have (on average 2.425) internal successors, (97), 41 states have internal predecessors, (97), 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) [2021-12-06 17:15:50,539 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 17:15:50,539 INFO L93 Difference]: Finished difference Result 199 states and 211 transitions. [2021-12-06 17:15:50,539 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-12-06 17:15:50,540 INFO L78 Accepts]: Start accepts. Automaton has has 41 states, 40 states have (on average 2.425) internal successors, (97), 41 states have internal predecessors, (97), 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 39 [2021-12-06 17:15:50,540 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 17:15:50,540 INFO L225 Difference]: With dead ends: 199 [2021-12-06 17:15:50,541 INFO L226 Difference]: Without dead ends: 199 [2021-12-06 17:15:50,541 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 105 GetRequests, 52 SyntacticMatches, 5 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 699 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=386, Invalid=2048, Unknown=16, NotChecked=0, Total=2450 [2021-12-06 17:15:50,542 INFO L933 BasicCegarLoop]: 61 mSDtfsCounter, 157 mSDsluCounter, 1102 mSDsCounter, 0 mSdLazyCounter, 894 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 157 SdHoareTripleChecker+Valid, 1163 SdHoareTripleChecker+Invalid, 1502 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 894 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 569 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-12-06 17:15:50,542 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [157 Valid, 1163 Invalid, 1502 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 894 Invalid, 0 Unknown, 569 Unchecked, 0.3s Time] [2021-12-06 17:15:50,542 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 199 states. [2021-12-06 17:15:50,544 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 199 to 182. [2021-12-06 17:15:50,544 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 182 states, 158 states have (on average 1.2341772151898733) internal successors, (195), 181 states have internal predecessors, (195), 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) [2021-12-06 17:15:50,545 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 182 states to 182 states and 195 transitions. [2021-12-06 17:15:50,545 INFO L78 Accepts]: Start accepts. Automaton has 182 states and 195 transitions. Word has length 39 [2021-12-06 17:15:50,545 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 17:15:50,545 INFO L470 AbstractCegarLoop]: Abstraction has 182 states and 195 transitions. [2021-12-06 17:15:50,546 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 41 states, 40 states have (on average 2.425) internal successors, (97), 41 states have internal predecessors, (97), 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) [2021-12-06 17:15:50,546 INFO L276 IsEmpty]: Start isEmpty. Operand 182 states and 195 transitions. [2021-12-06 17:15:50,546 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2021-12-06 17:15:50,546 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 17:15:50,546 INFO L514 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 17:15:50,567 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2584da4-be1a-4772-8870-55a1267c6fe3/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2021-12-06 17:15:50,747 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2584da4-be1a-4772-8870-55a1267c6fe3/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2021-12-06 17:15:50,748 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr46REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 60 more)] === [2021-12-06 17:15:50,748 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 17:15:50,749 INFO L85 PathProgramCache]: Analyzing trace with hash 1509086815, now seen corresponding path program 1 times [2021-12-06 17:15:50,749 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 17:15:50,749 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1366692255] [2021-12-06 17:15:50,750 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 17:15:50,750 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 17:15:50,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:15:50,859 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 17:15:50,859 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 17:15:50,859 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1366692255] [2021-12-06 17:15:50,859 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1366692255] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-06 17:15:50,859 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1392994025] [2021-12-06 17:15:50,859 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 17:15:50,859 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 17:15:50,859 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2584da4-be1a-4772-8870-55a1267c6fe3/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 17:15:50,860 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2584da4-be1a-4772-8870-55a1267c6fe3/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-06 17:15:50,861 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2584da4-be1a-4772-8870-55a1267c6fe3/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-12-06 17:15:50,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:15:50,936 INFO L263 TraceCheckSpWp]: Trace formula consists of 263 conjuncts, 31 conjunts are in the unsatisfiable core [2021-12-06 17:15:50,938 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 17:15:51,140 INFO L173 IndexEqualityManager]: detected equality via solver [2021-12-06 17:15:51,141 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 15 [2021-12-06 17:15:51,143 INFO L173 IndexEqualityManager]: detected equality via solver [2021-12-06 17:15:51,145 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-12-06 17:15:51,145 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 28 treesize of output 19 [2021-12-06 17:15:51,157 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 17:15:51,157 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-06 17:15:51,199 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-12-06 17:15:51,199 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 33 treesize of output 37 [2021-12-06 17:15:51,272 INFO L354 Elim1Store]: treesize reduction 4, result has 63.6 percent of original size [2021-12-06 17:15:51,273 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 42 treesize of output 33 [2021-12-06 17:15:51,277 INFO L354 Elim1Store]: treesize reduction 10, result has 9.1 percent of original size [2021-12-06 17:15:51,277 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 20 treesize of output 12 [2021-12-06 17:15:51,346 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 17:15:51,346 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1392994025] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-06 17:15:51,346 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-06 17:15:51,346 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 9, 9] total 18 [2021-12-06 17:15:51,346 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [846402230] [2021-12-06 17:15:51,346 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-06 17:15:51,347 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2021-12-06 17:15:51,347 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 17:15:51,347 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-12-06 17:15:51,347 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=288, Unknown=0, NotChecked=0, Total=342 [2021-12-06 17:15:51,348 INFO L87 Difference]: Start difference. First operand 182 states and 195 transitions. Second operand has 19 states, 18 states have (on average 5.5) internal successors, (99), 19 states have internal predecessors, (99), 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) [2021-12-06 17:15:51,660 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 17:15:51,660 INFO L93 Difference]: Finished difference Result 221 states and 230 transitions. [2021-12-06 17:15:51,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-06 17:15:51,660 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 18 states have (on average 5.5) internal successors, (99), 19 states have internal predecessors, (99), 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 39 [2021-12-06 17:15:51,660 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 17:15:51,661 INFO L225 Difference]: With dead ends: 221 [2021-12-06 17:15:51,661 INFO L226 Difference]: Without dead ends: 221 [2021-12-06 17:15:51,662 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 70 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 87 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=115, Invalid=535, Unknown=0, NotChecked=0, Total=650 [2021-12-06 17:15:51,662 INFO L933 BasicCegarLoop]: 63 mSDtfsCounter, 205 mSDsluCounter, 599 mSDsCounter, 0 mSdLazyCounter, 588 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 205 SdHoareTripleChecker+Valid, 662 SdHoareTripleChecker+Invalid, 735 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 588 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 121 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-12-06 17:15:51,662 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [205 Valid, 662 Invalid, 735 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 588 Invalid, 0 Unknown, 121 Unchecked, 0.2s Time] [2021-12-06 17:15:51,663 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 221 states. [2021-12-06 17:15:51,667 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 221 to 192. [2021-12-06 17:15:51,667 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 192 states, 171 states have (on average 1.2222222222222223) internal successors, (209), 191 states have internal predecessors, (209), 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) [2021-12-06 17:15:51,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 192 states to 192 states and 209 transitions. [2021-12-06 17:15:51,668 INFO L78 Accepts]: Start accepts. Automaton has 192 states and 209 transitions. Word has length 39 [2021-12-06 17:15:51,668 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 17:15:51,668 INFO L470 AbstractCegarLoop]: Abstraction has 192 states and 209 transitions. [2021-12-06 17:15:51,668 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 18 states have (on average 5.5) internal successors, (99), 19 states have internal predecessors, (99), 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) [2021-12-06 17:15:51,668 INFO L276 IsEmpty]: Start isEmpty. Operand 192 states and 209 transitions. [2021-12-06 17:15:51,668 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2021-12-06 17:15:51,668 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 17:15:51,669 INFO L514 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 17:15:51,689 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2584da4-be1a-4772-8870-55a1267c6fe3/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2021-12-06 17:15:51,869 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2584da4-be1a-4772-8870-55a1267c6fe3/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2021-12-06 17:15:51,870 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr59ASSERT_VIOLATIONMEMORY_FREE === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 60 more)] === [2021-12-06 17:15:51,870 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 17:15:51,871 INFO L85 PathProgramCache]: Analyzing trace with hash 1397307224, now seen corresponding path program 1 times [2021-12-06 17:15:51,871 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 17:15:51,871 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1099892745] [2021-12-06 17:15:51,871 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 17:15:51,872 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 17:15:51,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:15:51,951 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 17:15:51,951 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 17:15:51,951 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1099892745] [2021-12-06 17:15:51,951 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1099892745] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 17:15:51,952 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 17:15:51,952 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-06 17:15:51,952 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [658914184] [2021-12-06 17:15:51,952 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 17:15:51,952 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-12-06 17:15:51,952 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 17:15:51,952 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-12-06 17:15:51,952 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-12-06 17:15:51,952 INFO L87 Difference]: Start difference. First operand 192 states and 209 transitions. Second operand has 8 states, 7 states have (on average 5.714285714285714) internal successors, (40), 8 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 17:15:52,107 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 17:15:52,107 INFO L93 Difference]: Finished difference Result 215 states and 224 transitions. [2021-12-06 17:15:52,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-06 17:15:52,107 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 5.714285714285714) internal successors, (40), 8 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 40 [2021-12-06 17:15:52,107 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 17:15:52,108 INFO L225 Difference]: With dead ends: 215 [2021-12-06 17:15:52,108 INFO L226 Difference]: Without dead ends: 215 [2021-12-06 17:15:52,108 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132 [2021-12-06 17:15:52,109 INFO L933 BasicCegarLoop]: 57 mSDtfsCounter, 87 mSDsluCounter, 245 mSDsCounter, 0 mSdLazyCounter, 364 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 87 SdHoareTripleChecker+Valid, 302 SdHoareTripleChecker+Invalid, 373 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 364 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-06 17:15:52,109 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [87 Valid, 302 Invalid, 373 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 364 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-06 17:15:52,109 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 215 states. [2021-12-06 17:15:52,111 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 215 to 199. [2021-12-06 17:15:52,112 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 199 states, 178 states have (on average 1.2247191011235956) internal successors, (218), 198 states have internal predecessors, (218), 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) [2021-12-06 17:15:52,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 199 states to 199 states and 218 transitions. [2021-12-06 17:15:52,112 INFO L78 Accepts]: Start accepts. Automaton has 199 states and 218 transitions. Word has length 40 [2021-12-06 17:15:52,113 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 17:15:52,113 INFO L470 AbstractCegarLoop]: Abstraction has 199 states and 218 transitions. [2021-12-06 17:15:52,113 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 5.714285714285714) internal successors, (40), 8 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 17:15:52,113 INFO L276 IsEmpty]: Start isEmpty. Operand 199 states and 218 transitions. [2021-12-06 17:15:52,113 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2021-12-06 17:15:52,113 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 17:15:52,114 INFO L514 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 17:15:52,114 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2021-12-06 17:15:52,114 INFO L402 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr30REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 60 more)] === [2021-12-06 17:15:52,114 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 17:15:52,114 INFO L85 PathProgramCache]: Analyzing trace with hash 402357860, now seen corresponding path program 1 times [2021-12-06 17:15:52,114 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 17:15:52,115 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1781128589] [2021-12-06 17:15:52,115 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 17:15:52,115 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 17:15:52,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:15:52,613 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 17:15:52,614 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 17:15:52,614 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1781128589] [2021-12-06 17:15:52,614 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1781128589] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-06 17:15:52,614 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2101032703] [2021-12-06 17:15:52,614 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 17:15:52,614 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 17:15:52,614 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2584da4-be1a-4772-8870-55a1267c6fe3/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 17:15:52,615 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2584da4-be1a-4772-8870-55a1267c6fe3/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-06 17:15:52,615 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2584da4-be1a-4772-8870-55a1267c6fe3/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-12-06 17:15:52,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:15:52,690 INFO L263 TraceCheckSpWp]: Trace formula consists of 306 conjuncts, 51 conjunts are in the unsatisfiable core [2021-12-06 17:15:52,693 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 17:15:52,697 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-12-06 17:15:52,748 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-12-06 17:15:52,748 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 [2021-12-06 17:15:52,774 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 [2021-12-06 17:15:52,834 INFO L354 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2021-12-06 17:15:52,834 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 19 treesize of output 22 [2021-12-06 17:15:52,898 INFO L354 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2021-12-06 17:15:52,898 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 22 treesize of output 22 [2021-12-06 17:15:52,948 INFO L354 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2021-12-06 17:15:52,949 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 22 treesize of output 22 [2021-12-06 17:15:52,957 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:15:52,961 INFO L354 Elim1Store]: treesize reduction 8, result has 52.9 percent of original size [2021-12-06 17:15:52,961 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 16 treesize of output 18 [2021-12-06 17:15:52,992 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-12-06 17:15:52,993 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 1 case distinctions, treesize of input 27 treesize of output 22 [2021-12-06 17:15:53,069 INFO L354 Elim1Store]: treesize reduction 28, result has 28.2 percent of original size [2021-12-06 17:15:53,069 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 34 treesize of output 38 [2021-12-06 17:15:53,131 INFO L354 Elim1Store]: treesize reduction 36, result has 23.4 percent of original size [2021-12-06 17:15:53,131 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 4 new quantified variables, introduced 3 case distinctions, treesize of input 60 treesize of output 53 [2021-12-06 17:15:53,263 INFO L173 IndexEqualityManager]: detected equality via solver [2021-12-06 17:15:53,267 INFO L354 Elim1Store]: treesize reduction 25, result has 10.7 percent of original size [2021-12-06 17:15:53,267 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 53 treesize of output 27 [2021-12-06 17:15:53,271 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 17:15:53,271 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-06 17:15:53,592 INFO L354 Elim1Store]: treesize reduction 5, result has 87.8 percent of original size [2021-12-06 17:15:53,592 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 45 treesize of output 44 [2021-12-06 17:15:53,600 WARN L838 $PredicateComparison]: unable to prove that (forall ((|ULTIMATE.start_main_~x~0#1.offset| Int) (v_ArrVal_1347 (Array Int Int)) (v_ArrVal_1346 (Array Int Int)) (|v_ULTIMATE.start_main_~x~0#1.offset_75| Int)) (or (< |v_ULTIMATE.start_main_~x~0#1.offset_75| 0) (= |c_ULTIMATE.start_main_~x~0#1.base| (select (select (let ((.cse0 (store (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~x~0#1.base| (store (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~x~0#1.base|) |ULTIMATE.start_main_~x~0#1.offset| |c_ULTIMATE.start_main_#t~malloc6#1.base|)) |c_ULTIMATE.start_main_#t~malloc6#1.base| v_ArrVal_1346))) (store .cse0 (select (select .cse0 |c_ULTIMATE.start_main_~x~0#1.base|) |ULTIMATE.start_main_~x~0#1.offset|) v_ArrVal_1347)) |c_ULTIMATE.start_main_~head~0#1.base|) |v_ULTIMATE.start_main_~x~0#1.offset_75|)) (< |c_ULTIMATE.start_main_~head~0#1.offset| |v_ULTIMATE.start_main_~x~0#1.offset_75|))) is different from false [2021-12-06 17:15:53,677 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-12-06 17:15:53,677 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 32 treesize of output 33 [2021-12-06 17:15:53,698 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_arrayElimArr_5 (Array Int Int)) (|ULTIMATE.start_main_~x~0#1.offset| Int) (v_ArrVal_1347 (Array Int Int)) (v_ArrVal_1346 (Array Int Int)) (|v_ULTIMATE.start_main_~x~0#1.offset_75| Int)) (let ((.cse1 (select v_arrayElimArr_5 |ULTIMATE.start_main_~x~0#1.offset|))) (or (= |c_ULTIMATE.start_main_~x~0#1.base| (select (select (let ((.cse0 (store (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~x~0#1.base| v_arrayElimArr_5) .cse1 v_ArrVal_1346))) (store .cse0 (select (select .cse0 |c_ULTIMATE.start_main_~x~0#1.base|) |ULTIMATE.start_main_~x~0#1.offset|) v_ArrVal_1347)) |c_ULTIMATE.start_main_~head~0#1.base|) |v_ULTIMATE.start_main_~x~0#1.offset_75|)) (< |v_ULTIMATE.start_main_~x~0#1.offset_75| 0) (not (= (select |c_#valid| .cse1) 0)) (< |c_ULTIMATE.start_main_~head~0#1.offset| |v_ULTIMATE.start_main_~x~0#1.offset_75|)))) is different from false [2021-12-06 17:15:54,240 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-12-06 17:15:54,240 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 1 new quantified variables, introduced 1 case distinctions, treesize of input 134 treesize of output 86 [2021-12-06 17:15:54,273 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-12-06 17:15:54,274 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 33174 treesize of output 26025 [2021-12-06 17:15:54,539 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-12-06 17:15:54,540 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 26010 treesize of output 24296 [2021-12-06 17:15:54,707 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-12-06 17:15:54,708 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 24266 treesize of output 23210 [2021-12-06 17:15:54,872 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-12-06 17:15:54,872 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 23210 treesize of output 20680 [2021-12-06 17:15:55,009 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20666 treesize of output 19386 [2021-12-06 17:15:55,193 INFO L354 Elim1Store]: treesize reduction 14, result has 71.4 percent of original size [2021-12-06 17:15:55,193 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 35 treesize of output 61