./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-consumption/linux-3.8-rc1-32_7a-drivers--scsi--st.ko-ldv_main0.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 7e70badd Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bd3aa15-bf54-4ae9-b835-1c038a256af3/bin/uautomizer-wIGwrQj20G/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bd3aa15-bf54-4ae9-b835-1c038a256af3/bin/uautomizer-wIGwrQj20G/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bd3aa15-bf54-4ae9-b835-1c038a256af3/bin/uautomizer-wIGwrQj20G/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bd3aa15-bf54-4ae9-b835-1c038a256af3/bin/uautomizer-wIGwrQj20G/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-consumption/linux-3.8-rc1-32_7a-drivers--scsi--st.ko-ldv_main0.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bd3aa15-bf54-4ae9-b835-1c038a256af3/bin/uautomizer-wIGwrQj20G/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bd3aa15-bf54-4ae9-b835-1c038a256af3/bin/uautomizer-wIGwrQj20G --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 2eef4809e0fb5b801f2479dfde07a6f5e1ac3784201f878d167f0654e03bdeae --- Real Ultimate output --- This is Ultimate 0.2.1-dev-7e70bad [2021-11-23 12:31:59,863 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 12:31:59,865 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 12:31:59,902 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 12:31:59,903 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 12:31:59,907 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 12:31:59,909 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 12:31:59,911 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 12:31:59,914 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 12:31:59,915 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 12:31:59,916 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 12:31:59,918 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 12:31:59,919 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 12:31:59,920 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 12:31:59,922 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 12:31:59,930 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 12:31:59,932 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 12:31:59,940 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 12:31:59,945 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 12:31:59,954 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 12:31:59,957 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 12:31:59,960 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 12:31:59,962 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 12:31:59,967 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 12:31:59,975 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 12:31:59,976 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 12:31:59,976 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 12:31:59,977 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 12:31:59,978 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 12:31:59,979 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 12:31:59,979 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 12:31:59,980 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 12:31:59,981 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 12:31:59,982 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 12:31:59,986 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 12:31:59,987 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 12:31:59,988 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 12:31:59,988 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 12:31:59,989 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 12:31:59,990 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 12:31:59,990 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 12:31:59,991 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bd3aa15-bf54-4ae9-b835-1c038a256af3/bin/uautomizer-wIGwrQj20G/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-23 12:32:00,041 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 12:32:00,042 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 12:32:00,042 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-23 12:32:00,042 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-23 12:32:00,043 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-23 12:32:00,044 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-23 12:32:00,044 INFO L138 SettingsManager]: * Use SBE=true [2021-11-23 12:32:00,044 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 12:32:00,044 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 12:32:00,044 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 12:32:00,045 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 12:32:00,045 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 12:32:00,045 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 12:32:00,045 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 12:32:00,045 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 12:32:00,046 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 12:32:00,046 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 12:32:00,046 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-23 12:32:00,046 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-23 12:32:00,046 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 12:32:00,051 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 12:32:00,052 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 12:32:00,052 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 12:32:00,052 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-23 12:32:00,053 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-23 12:32:00,053 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-23 12:32:00,053 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-23 12:32:00,053 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 12:32:00,054 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-23 12:32:00,054 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_8bd3aa15-bf54-4ae9-b835-1c038a256af3/bin/uautomizer-wIGwrQj20G/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bd3aa15-bf54-4ae9-b835-1c038a256af3/bin/uautomizer-wIGwrQj20G Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2eef4809e0fb5b801f2479dfde07a6f5e1ac3784201f878d167f0654e03bdeae [2021-11-23 12:32:00,378 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 12:32:00,398 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 12:32:00,401 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 12:32:00,402 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 12:32:00,403 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 12:32:00,405 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bd3aa15-bf54-4ae9-b835-1c038a256af3/bin/uautomizer-wIGwrQj20G/../../sv-benchmarks/c/ldv-consumption/linux-3.8-rc1-32_7a-drivers--scsi--st.ko-ldv_main0.cil.out.i [2021-11-23 12:32:00,463 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bd3aa15-bf54-4ae9-b835-1c038a256af3/bin/uautomizer-wIGwrQj20G/data/10deb3d04/6662614f28cd419faf47bf02917e2802/FLAGb67a45515 [2021-11-23 12:32:01,426 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 12:32:01,426 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bd3aa15-bf54-4ae9-b835-1c038a256af3/sv-benchmarks/c/ldv-consumption/linux-3.8-rc1-32_7a-drivers--scsi--st.ko-ldv_main0.cil.out.i [2021-11-23 12:32:01,464 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bd3aa15-bf54-4ae9-b835-1c038a256af3/bin/uautomizer-wIGwrQj20G/data/10deb3d04/6662614f28cd419faf47bf02917e2802/FLAGb67a45515 [2021-11-23 12:32:01,895 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bd3aa15-bf54-4ae9-b835-1c038a256af3/bin/uautomizer-wIGwrQj20G/data/10deb3d04/6662614f28cd419faf47bf02917e2802 [2021-11-23 12:32:01,898 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 12:32:01,899 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 12:32:01,901 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 12:32:01,901 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 12:32:01,915 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 12:32:01,916 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 12:32:01" (1/1) ... [2021-11-23 12:32:01,918 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@698d8bda and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:32:01, skipping insertion in model container [2021-11-23 12:32:01,918 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 12:32:01" (1/1) ... [2021-11-23 12:32:01,926 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 12:32:02,083 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 12:32:04,230 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_8bd3aa15-bf54-4ae9-b835-1c038a256af3/sv-benchmarks/c/ldv-consumption/linux-3.8-rc1-32_7a-drivers--scsi--st.ko-ldv_main0.cil.out.i[269371,269384] [2021-11-23 12:32:04,399 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 12:32:04,429 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 12:32:04,926 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_8bd3aa15-bf54-4ae9-b835-1c038a256af3/sv-benchmarks/c/ldv-consumption/linux-3.8-rc1-32_7a-drivers--scsi--st.ko-ldv_main0.cil.out.i[269371,269384] [2021-11-23 12:32:04,944 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 12:32:05,061 INFO L208 MainTranslator]: Completed translation [2021-11-23 12:32:05,062 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:32:05 WrapperNode [2021-11-23 12:32:05,062 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 12:32:05,064 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 12:32:05,065 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 12:32:05,065 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 12:32:05,094 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:32:05" (1/1) ... [2021-11-23 12:32:05,261 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:32:05" (1/1) ... [2021-11-23 12:32:07,638 INFO L137 Inliner]: procedures = 282, calls = 3066, calls flagged for inlining = 487, calls inlined = 3733, statements flattened = 72436 [2021-11-23 12:32:07,638 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 12:32:07,640 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 12:32:07,640 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 12:32:07,640 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 12:32:07,661 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:32:05" (1/1) ... [2021-11-23 12:32:07,662 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:32:05" (1/1) ... [2021-11-23 12:32:08,388 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:32:05" (1/1) ... [2021-11-23 12:32:08,389 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:32:05" (1/1) ... [2021-11-23 12:32:10,331 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:32:05" (1/1) ... [2021-11-23 12:32:10,573 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:32:05" (1/1) ... [2021-11-23 12:32:10,720 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:32:05" (1/1) ... [2021-11-23 12:32:11,137 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 12:32:11,138 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 12:32:11,139 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 12:32:11,139 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 12:32:11,144 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:32:05" (1/1) ... [2021-11-23 12:32:11,158 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 12:32:11,169 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bd3aa15-bf54-4ae9-b835-1c038a256af3/bin/uautomizer-wIGwrQj20G/z3 [2021-11-23 12:32:11,188 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bd3aa15-bf54-4ae9-b835-1c038a256af3/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-23 12:32:11,219 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bd3aa15-bf54-4ae9-b835-1c038a256af3/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-23 12:32:11,241 INFO L130 BoogieDeclarations]: Found specification of procedure strncmp [2021-11-23 12:32:11,241 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-23 12:32:11,242 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-23 12:32:11,242 INFO L130 BoogieDeclarations]: Found specification of procedure st_int_ioctl [2021-11-23 12:32:11,242 INFO L138 BoogieDeclarations]: Found implementation of procedure st_int_ioctl [2021-11-23 12:32:11,242 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-23 12:32:11,243 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-23 12:32:11,243 INFO L130 BoogieDeclarations]: Found specification of procedure __xadd_wrong_size [2021-11-23 12:32:11,243 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-23 12:32:11,243 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-23 12:32:11,243 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-23 12:32:11,243 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-23 12:32:11,244 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-23 12:32:11,244 INFO L130 BoogieDeclarations]: Found specification of procedure enlarge_buffer [2021-11-23 12:32:11,244 INFO L138 BoogieDeclarations]: Found implementation of procedure enlarge_buffer [2021-11-23 12:32:11,244 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-23 12:32:11,244 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-23 12:32:11,244 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 12:32:11,245 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-23 12:32:11,245 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-11-23 12:32:11,245 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-23 12:32:11,245 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 12:32:11,245 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 12:32:12,223 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 12:32:12,225 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 12:33:00,656 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 12:33:00,713 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-23 12:33:00,713 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-11-23 12:33:00,727 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 12:33:00 BoogieIcfgContainer [2021-11-23 12:33:00,727 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-23 12:33:00,729 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-23 12:33:00,729 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-23 12:33:00,732 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-23 12:33:00,733 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 12:32:01" (1/3) ... [2021-11-23 12:33:00,733 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@20bf2321 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 12:33:00, skipping insertion in model container [2021-11-23 12:33:00,734 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:32:05" (2/3) ... [2021-11-23 12:33:00,734 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@20bf2321 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 12:33:00, skipping insertion in model container [2021-11-23 12:33:00,734 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 12:33:00" (3/3) ... [2021-11-23 12:33:00,736 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.8-rc1-32_7a-drivers--scsi--st.ko-ldv_main0.cil.out.i [2021-11-23 12:33:00,742 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-23 12:33:00,742 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 21 error locations. [2021-11-23 12:33:00,830 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-23 12:33:00,837 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-23 12:33:00,838 INFO L340 AbstractCegarLoop]: Starting to check reachability of 21 error locations. [2021-11-23 12:33:01,017 INFO L276 IsEmpty]: Start isEmpty. Operand has 11325 states, 11272 states have (on average 1.484208658623137) internal successors, (16730), 11293 states have internal predecessors, (16730), 29 states have call successors, (29), 2 states have call predecessors, (29), 2 states have return successors, (29), 29 states have call predecessors, (29), 29 states have call successors, (29) [2021-11-23 12:33:01,021 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-11-23 12:33:01,021 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 12:33:01,022 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 12:33:01,023 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 18 more)] === [2021-11-23 12:33:01,028 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 12:33:01,028 INFO L85 PathProgramCache]: Analyzing trace with hash 1603151782, now seen corresponding path program 1 times [2021-11-23 12:33:01,038 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 12:33:01,039 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1711357111] [2021-11-23 12:33:01,039 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 12:33:01,040 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 12:33:01,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 12:33:01,612 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 12:33:01,613 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 12:33:01,614 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1711357111] [2021-11-23 12:33:01,615 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1711357111] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 12:33:01,616 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 12:33:01,616 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-23 12:33:01,618 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [728643364] [2021-11-23 12:33:01,619 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 12:33:01,623 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 12:33:01,624 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 12:33:01,660 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 12:33:01,661 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 12:33:01,695 INFO L87 Difference]: Start difference. First operand has 11325 states, 11272 states have (on average 1.484208658623137) internal successors, (16730), 11293 states have internal predecessors, (16730), 29 states have call successors, (29), 2 states have call predecessors, (29), 2 states have return successors, (29), 29 states have call predecessors, (29), 29 states have call successors, (29) Second operand has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 2 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) [2021-11-23 12:33:02,378 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 12:33:02,378 INFO L93 Difference]: Finished difference Result 22624 states and 33578 transitions. [2021-11-23 12:33:02,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 12:33:02,382 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 2 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 [2021-11-23 12:33:02,382 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 12:33:02,497 INFO L225 Difference]: With dead ends: 22624 [2021-11-23 12:33:02,497 INFO L226 Difference]: Without dead ends: 11300 [2021-11-23 12:33:02,543 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 [2021-11-23 12:33:02,547 INFO L933 BasicCegarLoop]: 16543 mSDtfsCounter, 16540 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16540 SdHoareTripleChecker+Valid, 16543 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-23 12:33:02,548 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [16540 Valid, 16543 Invalid, 1 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-23 12:33:02,594 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11300 states. [2021-11-23 12:33:02,936 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11300 to 11300. [2021-11-23 12:33:02,970 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11300 states, 11248 states have (on average 1.4653271692745378) internal successors, (16482), 11268 states have internal predecessors, (16482), 29 states have call successors, (29), 2 states have call predecessors, (29), 2 states have return successors, (29), 29 states have call predecessors, (29), 29 states have call successors, (29) [2021-11-23 12:33:03,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11300 states to 11300 states and 16540 transitions. [2021-11-23 12:33:03,303 INFO L78 Accepts]: Start accepts. Automaton has 11300 states and 16540 transitions. Word has length 14 [2021-11-23 12:33:03,304 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 12:33:03,304 INFO L470 AbstractCegarLoop]: Abstraction has 11300 states and 16540 transitions. [2021-11-23 12:33:03,304 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 2 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) [2021-11-23 12:33:03,305 INFO L276 IsEmpty]: Start isEmpty. Operand 11300 states and 16540 transitions. [2021-11-23 12:33:03,305 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-11-23 12:33:03,305 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 12:33:03,306 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 12:33:03,306 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-23 12:33:03,307 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 18 more)] === [2021-11-23 12:33:03,311 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 12:33:03,311 INFO L85 PathProgramCache]: Analyzing trace with hash 1210124772, now seen corresponding path program 1 times [2021-11-23 12:33:03,312 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 12:33:03,313 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [509423403] [2021-11-23 12:33:03,313 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 12:33:03,314 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 12:33:03,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 12:33:03,460 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 12:33:03,460 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 12:33:03,460 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [509423403] [2021-11-23 12:33:03,461 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [509423403] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 12:33:03,461 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 12:33:03,461 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-23 12:33:03,461 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [17477091] [2021-11-23 12:33:03,462 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 12:33:03,463 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 12:33:03,463 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 12:33:03,464 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 12:33:03,464 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 12:33:03,464 INFO L87 Difference]: Start difference. First operand 11300 states and 16540 transitions. Second operand has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 2 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) [2021-11-23 12:33:03,979 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 12:33:03,979 INFO L93 Difference]: Finished difference Result 22594 states and 33073 transitions. [2021-11-23 12:33:03,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 12:33:03,982 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 2 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 [2021-11-23 12:33:03,982 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 12:33:04,056 INFO L225 Difference]: With dead ends: 22594 [2021-11-23 12:33:04,057 INFO L226 Difference]: Without dead ends: 11300 [2021-11-23 12:33:04,088 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 [2021-11-23 12:33:04,093 INFO L933 BasicCegarLoop]: 16538 mSDtfsCounter, 16534 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16534 SdHoareTripleChecker+Valid, 16538 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-23 12:33:04,094 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [16534 Valid, 16538 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-23 12:33:04,125 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11300 states. [2021-11-23 12:33:04,642 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11300 to 11300. [2021-11-23 12:33:04,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11300 states, 11248 states have (on average 1.4652382645803699) internal successors, (16481), 11268 states have internal predecessors, (16481), 29 states have call successors, (29), 2 states have call predecessors, (29), 2 states have return successors, (29), 29 states have call predecessors, (29), 29 states have call successors, (29) [2021-11-23 12:33:04,719 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11300 states to 11300 states and 16539 transitions. [2021-11-23 12:33:04,719 INFO L78 Accepts]: Start accepts. Automaton has 11300 states and 16539 transitions. Word has length 14 [2021-11-23 12:33:04,720 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 12:33:04,720 INFO L470 AbstractCegarLoop]: Abstraction has 11300 states and 16539 transitions. [2021-11-23 12:33:04,727 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 2 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) [2021-11-23 12:33:04,728 INFO L276 IsEmpty]: Start isEmpty. Operand 11300 states and 16539 transitions. [2021-11-23 12:33:04,729 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-11-23 12:33:04,729 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 12:33:04,729 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 12:33:04,729 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-23 12:33:04,730 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 18 more)] === [2021-11-23 12:33:04,730 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 12:33:04,731 INFO L85 PathProgramCache]: Analyzing trace with hash 1890183142, now seen corresponding path program 1 times [2021-11-23 12:33:04,731 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 12:33:04,731 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [281531653] [2021-11-23 12:33:04,731 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 12:33:04,731 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 12:33:04,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 12:33:04,931 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 12:33:04,931 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 12:33:04,931 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [281531653] [2021-11-23 12:33:04,932 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [281531653] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 12:33:04,932 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 12:33:04,933 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 12:33:04,933 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1120178133] [2021-11-23 12:33:04,933 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 12:33:04,933 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 12:33:04,934 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 12:33:04,935 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 12:33:04,935 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 12:33:04,935 INFO L87 Difference]: Start difference. First operand 11300 states and 16539 transitions. Second operand has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 12:33:05,416 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 12:33:05,417 INFO L93 Difference]: Finished difference Result 11300 states and 16539 transitions. [2021-11-23 12:33:05,417 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 12:33:05,417 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2021-11-23 12:33:05,418 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 12:33:05,476 INFO L225 Difference]: With dead ends: 11300 [2021-11-23 12:33:05,476 INFO L226 Difference]: Without dead ends: 11298 [2021-11-23 12:33:05,485 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 12:33:05,490 INFO L933 BasicCegarLoop]: 16536 mSDtfsCounter, 16525 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16525 SdHoareTripleChecker+Valid, 16536 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-23 12:33:05,491 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [16525 Valid, 16536 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-23 12:33:05,519 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11298 states. [2021-11-23 12:33:05,808 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11298 to 11298. [2021-11-23 12:33:05,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11298 states, 11247 states have (on average 1.4651907175246732) internal successors, (16479), 11266 states have internal predecessors, (16479), 29 states have call successors, (29), 2 states have call predecessors, (29), 2 states have return successors, (29), 29 states have call predecessors, (29), 29 states have call successors, (29) [2021-11-23 12:33:05,873 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11298 states to 11298 states and 16537 transitions. [2021-11-23 12:33:05,874 INFO L78 Accepts]: Start accepts. Automaton has 11298 states and 16537 transitions. Word has length 14 [2021-11-23 12:33:05,874 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 12:33:05,874 INFO L470 AbstractCegarLoop]: Abstraction has 11298 states and 16537 transitions. [2021-11-23 12:33:05,874 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 12:33:05,875 INFO L276 IsEmpty]: Start isEmpty. Operand 11298 states and 16537 transitions. [2021-11-23 12:33:05,877 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-11-23 12:33:05,877 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 12:33:05,877 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 12:33:05,877 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-23 12:33:05,878 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 18 more)] === [2021-11-23 12:33:05,879 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 12:33:05,879 INFO L85 PathProgramCache]: Analyzing trace with hash -1533825988, now seen corresponding path program 1 times [2021-11-23 12:33:05,879 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 12:33:05,879 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1419752371] [2021-11-23 12:33:05,879 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 12:33:05,880 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 12:33:05,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 12:33:06,048 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 12:33:06,048 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 12:33:06,048 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1419752371] [2021-11-23 12:33:06,048 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1419752371] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 12:33:06,049 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 12:33:06,049 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 12:33:06,049 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [530928085] [2021-11-23 12:33:06,049 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 12:33:06,050 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 12:33:06,050 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 12:33:06,050 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 12:33:06,051 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 12:33:06,051 INFO L87 Difference]: Start difference. First operand 11298 states and 16537 transitions. Second operand has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 12:33:07,062 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 12:33:07,063 INFO L93 Difference]: Finished difference Result 33768 states and 49461 transitions. [2021-11-23 12:33:07,063 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 12:33:07,063 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2021-11-23 12:33:07,064 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 12:33:07,139 INFO L225 Difference]: With dead ends: 33768 [2021-11-23 12:33:07,140 INFO L226 Difference]: Without dead ends: 22507 [2021-11-23 12:33:07,183 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 12:33:07,184 INFO L933 BasicCegarLoop]: 26127 mSDtfsCounter, 16505 mSDsluCounter, 16421 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16505 SdHoareTripleChecker+Valid, 42548 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-23 12:33:07,185 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [16505 Valid, 42548 Invalid, 39 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [15 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-23 12:33:07,226 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22507 states. [2021-11-23 12:33:07,937 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22507 to 22479. [2021-11-23 12:33:07,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22479 states, 22397 states have (on average 1.4659106130285307) internal successors, (32832), 22416 states have internal predecessors, (32832), 58 states have call successors, (58), 4 states have call predecessors, (58), 4 states have return successors, (58), 58 states have call predecessors, (58), 58 states have call successors, (58) [2021-11-23 12:33:08,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22479 states to 22479 states and 32948 transitions. [2021-11-23 12:33:08,071 INFO L78 Accepts]: Start accepts. Automaton has 22479 states and 32948 transitions. Word has length 15 [2021-11-23 12:33:08,072 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 12:33:08,072 INFO L470 AbstractCegarLoop]: Abstraction has 22479 states and 32948 transitions. [2021-11-23 12:33:08,072 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 12:33:08,072 INFO L276 IsEmpty]: Start isEmpty. Operand 22479 states and 32948 transitions. [2021-11-23 12:33:08,074 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-11-23 12:33:08,074 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 12:33:08,074 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 12:33:08,074 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-23 12:33:08,075 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 18 more)] === [2021-11-23 12:33:08,076 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 12:33:08,077 INFO L85 PathProgramCache]: Analyzing trace with hash -303926607, now seen corresponding path program 1 times [2021-11-23 12:33:08,077 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 12:33:08,077 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1640811548] [2021-11-23 12:33:08,078 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 12:33:08,078 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 12:33:08,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 12:33:08,242 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 12:33:08,243 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 12:33:08,243 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1640811548] [2021-11-23 12:33:08,243 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1640811548] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 12:33:08,245 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 12:33:08,245 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 12:33:08,245 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1360969195] [2021-11-23 12:33:08,245 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 12:33:08,246 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 12:33:08,246 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 12:33:08,246 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 12:33:08,247 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 12:33:08,247 INFO L87 Difference]: Start difference. First operand 22479 states and 32948 transitions. Second operand has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 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) [2021-11-23 12:33:09,037 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 12:33:09,038 INFO L93 Difference]: Finished difference Result 22479 states and 32948 transitions. [2021-11-23 12:33:09,039 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 12:33:09,043 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 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 [2021-11-23 12:33:09,043 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 12:33:09,112 INFO L225 Difference]: With dead ends: 22479 [2021-11-23 12:33:09,112 INFO L226 Difference]: Without dead ends: 22477 [2021-11-23 12:33:09,124 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 12:33:09,125 INFO L933 BasicCegarLoop]: 16534 mSDtfsCounter, 16521 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16521 SdHoareTripleChecker+Valid, 16534 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-23 12:33:09,126 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [16521 Valid, 16534 Invalid, 2 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-23 12:33:09,161 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22477 states. [2021-11-23 12:33:09,830 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22477 to 22477. [2021-11-23 12:33:09,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22477 states, 22396 states have (on average 1.4658867654938381) internal successors, (32830), 22414 states have internal predecessors, (32830), 58 states have call successors, (58), 4 states have call predecessors, (58), 4 states have return successors, (58), 58 states have call predecessors, (58), 58 states have call successors, (58) [2021-11-23 12:33:10,115 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22477 states to 22477 states and 32946 transitions. [2021-11-23 12:33:10,116 INFO L78 Accepts]: Start accepts. Automaton has 22477 states and 32946 transitions. Word has length 16 [2021-11-23 12:33:10,117 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 12:33:10,117 INFO L470 AbstractCegarLoop]: Abstraction has 22477 states and 32946 transitions. [2021-11-23 12:33:10,117 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 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) [2021-11-23 12:33:10,117 INFO L276 IsEmpty]: Start isEmpty. Operand 22477 states and 32946 transitions. [2021-11-23 12:33:10,118 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-11-23 12:33:10,119 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 12:33:10,119 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 12:33:10,119 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-23 12:33:10,119 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 18 more)] === [2021-11-23 12:33:10,120 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 12:33:10,120 INFO L85 PathProgramCache]: Analyzing trace with hash -831751449, now seen corresponding path program 1 times [2021-11-23 12:33:10,121 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 12:33:10,121 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [441825129] [2021-11-23 12:33:10,121 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 12:33:10,121 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 12:33:10,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 12:33:10,268 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 12:33:10,269 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 12:33:10,269 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [441825129] [2021-11-23 12:33:10,269 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [441825129] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 12:33:10,270 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 12:33:10,270 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 12:33:10,270 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2057398599] [2021-11-23 12:33:10,270 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 12:33:10,271 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 12:33:10,271 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 12:33:10,272 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 12:33:10,272 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 12:33:10,272 INFO L87 Difference]: Start difference. First operand 22477 states and 32946 transitions. Second operand has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 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) [2021-11-23 12:33:11,018 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 12:33:11,019 INFO L93 Difference]: Finished difference Result 22477 states and 32946 transitions. [2021-11-23 12:33:11,019 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 12:33:11,019 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 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 [2021-11-23 12:33:11,020 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 12:33:11,082 INFO L225 Difference]: With dead ends: 22477 [2021-11-23 12:33:11,082 INFO L226 Difference]: Without dead ends: 22449 [2021-11-23 12:33:11,091 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 12:33:11,092 INFO L933 BasicCegarLoop]: 16518 mSDtfsCounter, 16249 mSDsluCounter, 239 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16249 SdHoareTripleChecker+Valid, 16757 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-23 12:33:11,093 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [16249 Valid, 16757 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-23 12:33:11,124 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22449 states. [2021-11-23 12:33:11,797 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22449 to 22449. [2021-11-23 12:33:11,824 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22449 states, 22374 states have (on average 1.4655850540806292) internal successors, (32791), 22386 states have internal predecessors, (32791), 58 states have call successors, (58), 4 states have call predecessors, (58), 4 states have return successors, (58), 58 states have call predecessors, (58), 58 states have call successors, (58) [2021-11-23 12:33:11,932 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22449 states to 22449 states and 32907 transitions. [2021-11-23 12:33:11,933 INFO L78 Accepts]: Start accepts. Automaton has 22449 states and 32907 transitions. Word has length 17 [2021-11-23 12:33:11,933 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 12:33:11,934 INFO L470 AbstractCegarLoop]: Abstraction has 22449 states and 32907 transitions. [2021-11-23 12:33:11,934 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 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) [2021-11-23 12:33:11,934 INFO L276 IsEmpty]: Start isEmpty. Operand 22449 states and 32907 transitions. [2021-11-23 12:33:11,942 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2021-11-23 12:33:11,942 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 12:33:11,943 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] [2021-11-23 12:33:11,943 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-23 12:33:11,943 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 18 more)] === [2021-11-23 12:33:11,944 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 12:33:11,944 INFO L85 PathProgramCache]: Analyzing trace with hash 1450536056, now seen corresponding path program 1 times [2021-11-23 12:33:11,944 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 12:33:11,944 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1143373576] [2021-11-23 12:33:11,944 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 12:33:11,945 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 12:33:12,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 12:33:12,148 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 12:33:12,149 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 12:33:12,149 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1143373576] [2021-11-23 12:33:12,149 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1143373576] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 12:33:12,149 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 12:33:12,149 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 12:33:12,150 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1996676977] [2021-11-23 12:33:12,150 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 12:33:12,150 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 12:33:12,151 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 12:33:12,151 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 12:33:12,151 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 12:33:12,151 INFO L87 Difference]: Start difference. First operand 22449 states and 32907 transitions. Second operand has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 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) [2021-11-23 12:33:13,490 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 12:33:13,490 INFO L93 Difference]: Finished difference Result 44871 states and 65774 transitions. [2021-11-23 12:33:13,491 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 12:33:13,491 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 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 [2021-11-23 12:33:13,492 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 12:33:13,559 INFO L225 Difference]: With dead ends: 44871 [2021-11-23 12:33:13,560 INFO L226 Difference]: Without dead ends: 22459 [2021-11-23 12:33:13,587 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 12:33:13,591 INFO L933 BasicCegarLoop]: 23335 mSDtfsCounter, 16408 mSDsluCounter, 16474 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16408 SdHoareTripleChecker+Valid, 39809 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-23 12:33:13,591 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [16408 Valid, 39809 Invalid, 29 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [8 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-23 12:33:13,630 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22459 states. [2021-11-23 12:33:14,388 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22459 to 22449. [2021-11-23 12:33:14,414 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22449 states, 22374 states have (on average 1.4652721909359077) internal successors, (32784), 22386 states have internal predecessors, (32784), 58 states have call successors, (58), 4 states have call predecessors, (58), 4 states have return successors, (58), 58 states have call predecessors, (58), 58 states have call successors, (58) [2021-11-23 12:33:14,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22449 states to 22449 states and 32900 transitions. [2021-11-23 12:33:14,485 INFO L78 Accepts]: Start accepts. Automaton has 22449 states and 32900 transitions. Word has length 36 [2021-11-23 12:33:14,486 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 12:33:14,486 INFO L470 AbstractCegarLoop]: Abstraction has 22449 states and 32900 transitions. [2021-11-23 12:33:14,486 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 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) [2021-11-23 12:33:14,486 INFO L276 IsEmpty]: Start isEmpty. Operand 22449 states and 32900 transitions. [2021-11-23 12:33:14,490 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2021-11-23 12:33:14,490 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 12:33:14,490 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] [2021-11-23 12:33:14,490 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-23 12:33:14,491 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 18 more)] === [2021-11-23 12:33:14,491 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 12:33:14,491 INFO L85 PathProgramCache]: Analyzing trace with hash 1057509046, now seen corresponding path program 1 times [2021-11-23 12:33:14,491 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 12:33:14,492 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1104122863] [2021-11-23 12:33:14,492 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 12:33:14,492 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 12:33:14,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 12:33:14,716 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 12:33:14,716 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 12:33:14,716 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1104122863] [2021-11-23 12:33:14,716 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1104122863] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 12:33:14,717 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 12:33:14,717 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-23 12:33:14,717 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [577391255] [2021-11-23 12:33:14,717 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 12:33:14,718 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-23 12:33:14,718 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 12:33:14,718 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-23 12:33:14,719 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-23 12:33:14,719 INFO L87 Difference]: Start difference. First operand 22449 states and 32900 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) [2021-11-23 12:33:16,787 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 12:33:16,788 INFO L93 Difference]: Finished difference Result 39667 states and 57804 transitions. [2021-11-23 12:33:16,788 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-23 12:33:16,789 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 [2021-11-23 12:33:16,789 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 12:33:16,892 INFO L225 Difference]: With dead ends: 39667 [2021-11-23 12:33:16,893 INFO L226 Difference]: Without dead ends: 34186 [2021-11-23 12:33:16,916 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-23 12:33:16,917 INFO L933 BasicCegarLoop]: 32567 mSDtfsCounter, 35419 mSDsluCounter, 69570 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35431 SdHoareTripleChecker+Valid, 102137 SdHoareTripleChecker+Invalid, 103 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-23 12:33:16,917 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [35431 Valid, 102137 Invalid, 103 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [62 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-23 12:33:16,970 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34186 states. [2021-11-23 12:33:17,830 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34186 to 17258. [2021-11-23 12:33:17,854 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17258 states, 17197 states have (on average 1.4619991859045183) internal successors, (25142), 17207 states have internal predecessors, (25142), 46 states have call successors, (46), 4 states have call predecessors, (46), 4 states have return successors, (46), 46 states have call predecessors, (46), 46 states have call successors, (46) [2021-11-23 12:33:17,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17258 states to 17258 states and 25234 transitions. [2021-11-23 12:33:17,907 INFO L78 Accepts]: Start accepts. Automaton has 17258 states and 25234 transitions. Word has length 36 [2021-11-23 12:33:17,908 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 12:33:17,908 INFO L470 AbstractCegarLoop]: Abstraction has 17258 states and 25234 transitions. [2021-11-23 12:33:17,908 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) [2021-11-23 12:33:17,908 INFO L276 IsEmpty]: Start isEmpty. Operand 17258 states and 25234 transitions. [2021-11-23 12:33:17,911 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2021-11-23 12:33:17,912 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 12:33:17,912 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] [2021-11-23 12:33:17,912 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-23 12:33:17,912 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 18 more)] === [2021-11-23 12:33:17,913 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 12:33:17,913 INFO L85 PathProgramCache]: Analyzing trace with hash 1136328635, now seen corresponding path program 1 times [2021-11-23 12:33:17,913 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 12:33:17,913 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2080084947] [2021-11-23 12:33:17,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 12:33:17,914 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 12:33:17,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 12:33:18,091 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 12:33:18,091 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 12:33:18,091 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2080084947] [2021-11-23 12:33:18,091 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2080084947] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 12:33:18,092 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 12:33:18,092 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 12:33:18,092 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [245416338] [2021-11-23 12:33:18,092 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 12:33:18,096 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 12:33:18,096 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 12:33:18,096 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 12:33:18,097 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 12:33:18,097 INFO L87 Difference]: Start difference. First operand 17258 states and 25234 transitions. Second operand has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 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) [2021-11-23 12:33:19,473 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 12:33:19,474 INFO L93 Difference]: Finished difference Result 43530 states and 63655 transitions. [2021-11-23 12:33:19,474 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 12:33:19,475 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 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 [2021-11-23 12:33:19,475 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 12:33:19,547 INFO L225 Difference]: With dead ends: 43530 [2021-11-23 12:33:19,547 INFO L226 Difference]: Without dead ends: 26309 [2021-11-23 12:33:19,572 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 12:33:19,575 INFO L933 BasicCegarLoop]: 16963 mSDtfsCounter, 11633 mSDsluCounter, 15293 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11650 SdHoareTripleChecker+Valid, 32256 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-23 12:33:19,575 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [11650 Valid, 32256 Invalid, 24 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [6 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-23 12:33:19,613 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26309 states. [2021-11-23 12:33:20,829 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26309 to 26285. [2021-11-23 12:33:20,862 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26285 states, 26208 states have (on average 1.4618818681318682) internal successors, (38313), 26218 states have internal predecessors, (38313), 62 states have call successors, (62), 4 states have call predecessors, (62), 4 states have return successors, (62), 62 states have call predecessors, (62), 62 states have call successors, (62) [2021-11-23 12:33:20,961 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26285 states to 26285 states and 38437 transitions. [2021-11-23 12:33:20,961 INFO L78 Accepts]: Start accepts. Automaton has 26285 states and 38437 transitions. Word has length 38 [2021-11-23 12:33:20,962 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 12:33:20,962 INFO L470 AbstractCegarLoop]: Abstraction has 26285 states and 38437 transitions. [2021-11-23 12:33:20,962 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 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) [2021-11-23 12:33:20,962 INFO L276 IsEmpty]: Start isEmpty. Operand 26285 states and 38437 transitions. [2021-11-23 12:33:20,964 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2021-11-23 12:33:20,964 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 12:33:20,964 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] [2021-11-23 12:33:20,965 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-11-23 12:33:20,965 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 18 more)] === [2021-11-23 12:33:20,965 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 12:33:20,966 INFO L85 PathProgramCache]: Analyzing trace with hash -1490122051, now seen corresponding path program 1 times [2021-11-23 12:33:20,966 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 12:33:20,966 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1570133146] [2021-11-23 12:33:20,966 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 12:33:20,966 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 12:33:21,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 12:33:21,142 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 12:33:21,143 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 12:33:21,143 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1570133146] [2021-11-23 12:33:21,143 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1570133146] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 12:33:21,143 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 12:33:21,144 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 12:33:21,144 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1618130662] [2021-11-23 12:33:21,144 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 12:33:21,144 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 12:33:21,145 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 12:33:21,145 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 12:33:21,145 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 12:33:21,146 INFO L87 Difference]: Start difference. First operand 26285 states and 38437 transitions. Second operand has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 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) [2021-11-23 12:33:23,057 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 12:33:23,057 INFO L93 Difference]: Finished difference Result 77183 states and 113026 transitions. [2021-11-23 12:33:23,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 12:33:23,058 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 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 [2021-11-23 12:33:23,058 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 12:33:23,185 INFO L225 Difference]: With dead ends: 77183 [2021-11-23 12:33:23,185 INFO L226 Difference]: Without dead ends: 50935 [2021-11-23 12:33:23,229 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 12:33:23,230 INFO L933 BasicCegarLoop]: 16975 mSDtfsCounter, 15874 mSDsluCounter, 16237 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15898 SdHoareTripleChecker+Valid, 33212 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-23 12:33:23,231 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [15898 Valid, 33212 Invalid, 14 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [4 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-23 12:33:23,298 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50935 states. [2021-11-23 12:33:25,106 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50935 to 48048. [2021-11-23 12:33:25,152 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48048 states, 47926 states have (on average 1.4640487418102908) internal successors, (70166), 47936 states have internal predecessors, (70166), 107 states have call successors, (107), 4 states have call predecessors, (107), 4 states have return successors, (107), 107 states have call predecessors, (107), 107 states have call successors, (107) [2021-11-23 12:33:25,313 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48048 states to 48048 states and 70380 transitions. [2021-11-23 12:33:25,313 INFO L78 Accepts]: Start accepts. Automaton has 48048 states and 70380 transitions. Word has length 40 [2021-11-23 12:33:25,314 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 12:33:25,314 INFO L470 AbstractCegarLoop]: Abstraction has 48048 states and 70380 transitions. [2021-11-23 12:33:25,314 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 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) [2021-11-23 12:33:25,314 INFO L276 IsEmpty]: Start isEmpty. Operand 48048 states and 70380 transitions. [2021-11-23 12:33:25,317 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2021-11-23 12:33:25,317 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 12:33:25,317 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, 1, 1, 1] [2021-11-23 12:33:25,317 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-11-23 12:33:25,318 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 18 more)] === [2021-11-23 12:33:25,318 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 12:33:25,318 INFO L85 PathProgramCache]: Analyzing trace with hash -1518857673, now seen corresponding path program 1 times [2021-11-23 12:33:25,319 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 12:33:25,319 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [311745967] [2021-11-23 12:33:25,319 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 12:33:25,319 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 12:33:25,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 12:33:25,729 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 12:33:25,729 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 12:33:25,729 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [311745967] [2021-11-23 12:33:25,729 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [311745967] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 12:33:25,729 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 12:33:25,730 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 12:33:25,730 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1432261723] [2021-11-23 12:33:25,730 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 12:33:25,731 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 12:33:25,732 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 12:33:25,732 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 12:33:25,732 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 12:33:25,733 INFO L87 Difference]: Start difference. First operand 48048 states and 70380 transitions. Second operand has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 12:33:26,908 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 12:33:26,908 INFO L93 Difference]: Finished difference Result 48048 states and 70380 transitions. [2021-11-23 12:33:26,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 12:33:26,909 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 0 states have call successors, (0), 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 43 [2021-11-23 12:33:26,909 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 12:33:27,012 INFO L225 Difference]: With dead ends: 48048 [2021-11-23 12:33:27,012 INFO L226 Difference]: Without dead ends: 48038 [2021-11-23 12:33:27,028 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 12:33:27,029 INFO L933 BasicCegarLoop]: 16501 mSDtfsCounter, 221 mSDsluCounter, 16250 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 221 SdHoareTripleChecker+Valid, 32751 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-23 12:33:27,030 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [221 Valid, 32751 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-23 12:33:27,093 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48038 states. [2021-11-23 12:33:28,731 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48038 to 48038. [2021-11-23 12:33:28,772 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48038 states, 47921 states have (on average 1.4636798063479477) internal successors, (70141), 47926 states have internal predecessors, (70141), 107 states have call successors, (107), 4 states have call predecessors, (107), 4 states have return successors, (107), 107 states have call predecessors, (107), 107 states have call successors, (107) [2021-11-23 12:33:28,886 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48038 states to 48038 states and 70355 transitions. [2021-11-23 12:33:28,886 INFO L78 Accepts]: Start accepts. Automaton has 48038 states and 70355 transitions. Word has length 43 [2021-11-23 12:33:28,887 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 12:33:28,887 INFO L470 AbstractCegarLoop]: Abstraction has 48038 states and 70355 transitions. [2021-11-23 12:33:28,887 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 12:33:28,887 INFO L276 IsEmpty]: Start isEmpty. Operand 48038 states and 70355 transitions. [2021-11-23 12:33:28,889 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-11-23 12:33:28,889 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 12:33:28,890 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 12:33:28,890 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-11-23 12:33:28,890 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 18 more)] === [2021-11-23 12:33:28,890 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 12:33:28,891 INFO L85 PathProgramCache]: Analyzing trace with hash -1542770948, now seen corresponding path program 1 times [2021-11-23 12:33:28,891 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 12:33:28,891 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1910701025] [2021-11-23 12:33:28,891 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 12:33:28,891 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 12:33:28,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 12:33:29,053 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 12:33:29,054 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 12:33:29,054 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1910701025] [2021-11-23 12:33:29,054 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1910701025] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 12:33:29,055 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 12:33:29,055 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-23 12:33:29,055 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1912253097] [2021-11-23 12:33:29,055 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 12:33:29,055 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-23 12:33:29,056 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 12:33:29,056 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-23 12:33:29,056 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-23 12:33:29,057 INFO L87 Difference]: Start difference. First operand 48038 states and 70355 transitions. Second operand has 5 states, 5 states have (on average 9.2) internal successors, (46), 5 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 12:33:32,763 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 12:33:32,763 INFO L93 Difference]: Finished difference Result 101586 states and 147945 transitions. [2021-11-23 12:33:32,764 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-23 12:33:32,764 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.2) internal successors, (46), 5 states have internal predecessors, (46), 0 states have call successors, (0), 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 46 [2021-11-23 12:33:32,765 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 12:33:32,951 INFO L225 Difference]: With dead ends: 101586 [2021-11-23 12:33:32,951 INFO L226 Difference]: Without dead ends: 92323 [2021-11-23 12:33:32,982 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-23 12:33:32,983 INFO L933 BasicCegarLoop]: 30384 mSDtfsCounter, 61468 mSDsluCounter, 46332 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 98 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61480 SdHoareTripleChecker+Valid, 76716 SdHoareTripleChecker+Invalid, 136 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 98 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-23 12:33:32,984 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [61480 Valid, 76716 Invalid, 136 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [98 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-23 12:33:33,091 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92323 states. [2021-11-23 12:33:35,077 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92323 to 48034. [2021-11-23 12:33:35,114 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48034 states, 47917 states have (on average 1.463635035582361) internal successors, (70133), 47922 states have internal predecessors, (70133), 107 states have call successors, (107), 4 states have call predecessors, (107), 4 states have return successors, (107), 107 states have call predecessors, (107), 107 states have call successors, (107) [2021-11-23 12:33:35,203 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48034 states to 48034 states and 70347 transitions. [2021-11-23 12:33:35,204 INFO L78 Accepts]: Start accepts. Automaton has 48034 states and 70347 transitions. Word has length 46 [2021-11-23 12:33:35,204 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 12:33:35,204 INFO L470 AbstractCegarLoop]: Abstraction has 48034 states and 70347 transitions. [2021-11-23 12:33:35,205 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.2) internal successors, (46), 5 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 12:33:35,205 INFO L276 IsEmpty]: Start isEmpty. Operand 48034 states and 70347 transitions. [2021-11-23 12:33:35,224 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2021-11-23 12:33:35,224 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 12:33:35,224 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 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, 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] [2021-11-23 12:33:35,224 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-11-23 12:33:35,225 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 18 more)] === [2021-11-23 12:33:35,225 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 12:33:35,225 INFO L85 PathProgramCache]: Analyzing trace with hash -969485359, now seen corresponding path program 1 times [2021-11-23 12:33:35,226 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 12:33:35,226 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2014407146] [2021-11-23 12:33:35,226 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 12:33:35,226 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 12:33:35,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 12:33:35,371 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 12:33:35,371 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 12:33:35,371 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2014407146] [2021-11-23 12:33:35,372 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2014407146] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 12:33:35,372 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 12:33:35,372 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-23 12:33:35,372 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [109856998] [2021-11-23 12:33:35,372 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 12:33:35,373 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-23 12:33:35,373 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 12:33:35,373 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-23 12:33:35,373 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-23 12:33:35,374 INFO L87 Difference]: Start difference. First operand 48034 states and 70347 transitions. Second operand has 4 states, 4 states have (on average 19.5) internal successors, (78), 4 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)