./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--scsi--ipr.ko-entry_point.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_241839f4-0580-40c6-917b-0d6d843d9742/bin/uautomizer-wIGwrQj20G/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_241839f4-0580-40c6-917b-0d6d843d9742/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_241839f4-0580-40c6-917b-0d6d843d9742/bin/uautomizer-wIGwrQj20G/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_241839f4-0580-40c6-917b-0d6d843d9742/bin/uautomizer-wIGwrQj20G/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--scsi--ipr.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_241839f4-0580-40c6-917b-0d6d843d9742/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_241839f4-0580-40c6-917b-0d6d843d9742/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 abbffdcd9d162e40ee23574619503cd224e379518a2d0892b79cd093587730a2 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-7e70bad [2021-11-23 13:47:53,000 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 13:47:53,004 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 13:47:53,065 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 13:47:53,066 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 13:47:53,071 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 13:47:53,074 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 13:47:53,078 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 13:47:53,082 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 13:47:53,089 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 13:47:53,090 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 13:47:53,093 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 13:47:53,093 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 13:47:53,097 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 13:47:53,099 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 13:47:53,109 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 13:47:53,111 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 13:47:53,113 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 13:47:53,116 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 13:47:53,126 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 13:47:53,129 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 13:47:53,131 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 13:47:53,135 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 13:47:53,136 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 13:47:53,148 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 13:47:53,148 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 13:47:53,149 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 13:47:53,151 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 13:47:53,152 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 13:47:53,154 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 13:47:53,155 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 13:47:53,156 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 13:47:53,159 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 13:47:53,160 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 13:47:53,162 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 13:47:53,163 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 13:47:53,164 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 13:47:53,164 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 13:47:53,165 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 13:47:53,166 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 13:47:53,167 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 13:47:53,168 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_241839f4-0580-40c6-917b-0d6d843d9742/bin/uautomizer-wIGwrQj20G/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-23 13:47:53,224 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 13:47:53,225 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 13:47:53,226 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-23 13:47:53,226 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-23 13:47:53,235 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-23 13:47:53,236 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-23 13:47:53,236 INFO L138 SettingsManager]: * Use SBE=true [2021-11-23 13:47:53,237 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 13:47:53,237 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 13:47:53,237 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 13:47:53,239 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 13:47:53,239 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 13:47:53,239 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 13:47:53,240 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 13:47:53,240 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 13:47:53,240 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 13:47:53,241 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 13:47:53,241 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-23 13:47:53,241 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-23 13:47:53,241 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 13:47:53,242 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 13:47:53,242 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 13:47:53,242 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 13:47:53,243 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-23 13:47:53,243 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-23 13:47:53,243 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-23 13:47:53,243 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-23 13:47:53,244 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 13:47:53,244 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-23 13:47:53,244 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_241839f4-0580-40c6-917b-0d6d843d9742/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_241839f4-0580-40c6-917b-0d6d843d9742/bin/uautomizer-wIGwrQj20G Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> abbffdcd9d162e40ee23574619503cd224e379518a2d0892b79cd093587730a2 [2021-11-23 13:47:53,573 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 13:47:53,607 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 13:47:53,611 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 13:47:53,613 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 13:47:53,614 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 13:47:53,616 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_241839f4-0580-40c6-917b-0d6d843d9742/bin/uautomizer-wIGwrQj20G/../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--scsi--ipr.ko-entry_point.cil.out.i [2021-11-23 13:47:53,710 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_241839f4-0580-40c6-917b-0d6d843d9742/bin/uautomizer-wIGwrQj20G/data/d28381f42/7514a430026c4ff29385f4f52ca78750/FLAGa29a41bf5 [2021-11-23 13:47:54,812 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 13:47:54,813 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_241839f4-0580-40c6-917b-0d6d843d9742/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--scsi--ipr.ko-entry_point.cil.out.i [2021-11-23 13:47:54,874 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_241839f4-0580-40c6-917b-0d6d843d9742/bin/uautomizer-wIGwrQj20G/data/d28381f42/7514a430026c4ff29385f4f52ca78750/FLAGa29a41bf5 [2021-11-23 13:47:55,066 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_241839f4-0580-40c6-917b-0d6d843d9742/bin/uautomizer-wIGwrQj20G/data/d28381f42/7514a430026c4ff29385f4f52ca78750 [2021-11-23 13:47:55,070 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 13:47:55,073 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 13:47:55,077 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 13:47:55,077 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 13:47:55,081 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 13:47:55,082 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 01:47:55" (1/1) ... [2021-11-23 13:47:55,083 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@40c99648 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:47:55, skipping insertion in model container [2021-11-23 13:47:55,084 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 01:47:55" (1/1) ... [2021-11-23 13:47:55,091 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 13:47:55,408 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 13:48:02,563 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_241839f4-0580-40c6-917b-0d6d843d9742/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--scsi--ipr.ko-entry_point.cil.out.i[650907,650920] [2021-11-23 13:48:02,719 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 13:48:02,929 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 13:48:04,815 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_241839f4-0580-40c6-917b-0d6d843d9742/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--scsi--ipr.ko-entry_point.cil.out.i[650907,650920] [2021-11-23 13:48:04,828 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 13:48:05,135 INFO L208 MainTranslator]: Completed translation [2021-11-23 13:48:05,135 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:48:05 WrapperNode [2021-11-23 13:48:05,135 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 13:48:05,138 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 13:48:05,138 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 13:48:05,138 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 13:48:05,147 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:48:05" (1/1) ... [2021-11-23 13:48:05,407 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:48:05" (1/1) ... [2021-11-23 13:48:08,368 INFO L137 Inliner]: procedures = 624, calls = 8799, calls flagged for inlining = 1849, calls inlined = 6425, statements flattened = 87808 [2021-11-23 13:48:08,369 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 13:48:08,370 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 13:48:08,370 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 13:48:08,370 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 13:48:08,382 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:48:05" (1/1) ... [2021-11-23 13:48:08,382 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:48:05" (1/1) ... [2021-11-23 13:48:09,176 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:48:05" (1/1) ... [2021-11-23 13:48:09,178 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:48:05" (1/1) ... [2021-11-23 13:48:11,158 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:48:05" (1/1) ... [2021-11-23 13:48:11,667 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:48:05" (1/1) ... [2021-11-23 13:48:11,796 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:48:05" (1/1) ... [2021-11-23 13:48:12,176 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 13:48:12,177 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 13:48:12,177 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 13:48:12,178 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 13:48:12,179 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:48:05" (1/1) ... [2021-11-23 13:48:12,188 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 13:48:12,201 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_241839f4-0580-40c6-917b-0d6d843d9742/bin/uautomizer-wIGwrQj20G/z3 [2021-11-23 13:48:12,218 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_241839f4-0580-40c6-917b-0d6d843d9742/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-23 13:48:12,238 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_241839f4-0580-40c6-917b-0d6d843d9742/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-23 13:48:12,275 INFO L130 BoogieDeclarations]: Found specification of procedure ipr_shutdown [2021-11-23 13:48:12,276 INFO L138 BoogieDeclarations]: Found implementation of procedure ipr_shutdown [2021-11-23 13:48:12,276 INFO L130 BoogieDeclarations]: Found specification of procedure strncmp [2021-11-23 13:48:12,276 INFO L130 BoogieDeclarations]: Found specification of procedure _ipr_initiate_ioa_reset [2021-11-23 13:48:12,276 INFO L138 BoogieDeclarations]: Found implementation of procedure _ipr_initiate_ioa_reset [2021-11-23 13:48:12,277 INFO L130 BoogieDeclarations]: Found specification of procedure ipr_reset_mode_sense_page24_failed [2021-11-23 13:48:12,277 INFO L138 BoogieDeclarations]: Found implementation of procedure ipr_reset_mode_sense_page24_failed [2021-11-23 13:48:12,277 INFO L130 BoogieDeclarations]: Found specification of procedure ipr_probe_ioa [2021-11-23 13:48:12,277 INFO L138 BoogieDeclarations]: Found implementation of procedure ipr_probe_ioa [2021-11-23 13:48:12,277 INFO L130 BoogieDeclarations]: Found specification of procedure ipr_free_dump [2021-11-23 13:48:12,278 INFO L138 BoogieDeclarations]: Found implementation of procedure ipr_free_dump [2021-11-23 13:48:12,278 INFO L130 BoogieDeclarations]: Found specification of procedure ipr_free_all_resources [2021-11-23 13:48:12,278 INFO L138 BoogieDeclarations]: Found implementation of procedure ipr_free_all_resources [2021-11-23 13:48:12,278 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2021-11-23 13:48:12,278 INFO L130 BoogieDeclarations]: Found specification of procedure __xadd_wrong_size [2021-11-23 13:48:12,279 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-23 13:48:12,279 INFO L130 BoogieDeclarations]: Found specification of procedure ipr_reset_mode_sense_failed [2021-11-23 13:48:12,279 INFO L138 BoogieDeclarations]: Found implementation of procedure ipr_reset_mode_sense_failed [2021-11-23 13:48:12,279 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-23 13:48:12,279 INFO L130 BoogieDeclarations]: Found specification of procedure ipr_scsi_done [2021-11-23 13:48:12,280 INFO L138 BoogieDeclarations]: Found implementation of procedure ipr_scsi_done [2021-11-23 13:48:12,280 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-23 13:48:12,280 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-23 13:48:12,280 INFO L130 BoogieDeclarations]: Found specification of procedure __ipr_remove [2021-11-23 13:48:12,280 INFO L138 BoogieDeclarations]: Found implementation of procedure __ipr_remove [2021-11-23 13:48:12,281 INFO L130 BoogieDeclarations]: Found specification of procedure ipr_eh_dev_reset [2021-11-23 13:48:12,281 INFO L138 BoogieDeclarations]: Found implementation of procedure ipr_eh_dev_reset [2021-11-23 13:48:12,281 INFO L130 BoogieDeclarations]: Found specification of procedure ipr_eh_abort [2021-11-23 13:48:12,281 INFO L138 BoogieDeclarations]: Found implementation of procedure ipr_eh_abort [2021-11-23 13:48:12,281 INFO L130 BoogieDeclarations]: Found specification of procedure ipr_free_mem [2021-11-23 13:48:12,282 INFO L138 BoogieDeclarations]: Found implementation of procedure ipr_free_mem [2021-11-23 13:48:12,282 INFO L130 BoogieDeclarations]: Found specification of procedure kref_put [2021-11-23 13:48:12,282 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_put [2021-11-23 13:48:12,282 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-23 13:48:12,282 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_calloc [2021-11-23 13:48:12,283 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 13:48:12,283 INFO L130 BoogieDeclarations]: Found specification of procedure ipr_initiate_ioa_bringdown [2021-11-23 13:48:12,283 INFO L138 BoogieDeclarations]: Found implementation of procedure ipr_initiate_ioa_bringdown [2021-11-23 13:48:12,283 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-23 13:48:12,283 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-11-23 13:48:12,284 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-11-23 13:48:12,284 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2021-11-23 13:48:12,284 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2021-11-23 13:48:12,284 INFO L130 BoogieDeclarations]: Found specification of procedure ipr_reset_restore_cfg_space [2021-11-23 13:48:12,284 INFO L138 BoogieDeclarations]: Found implementation of procedure ipr_reset_restore_cfg_space [2021-11-23 13:48:12,285 INFO L130 BoogieDeclarations]: Found specification of procedure ipr_erp_request_sense [2021-11-23 13:48:12,285 INFO L138 BoogieDeclarations]: Found implementation of procedure ipr_erp_request_sense [2021-11-23 13:48:12,285 INFO L130 BoogieDeclarations]: Found specification of procedure ipr_reset_timer_done [2021-11-23 13:48:12,285 INFO L138 BoogieDeclarations]: Found implementation of procedure ipr_reset_timer_done [2021-11-23 13:48:12,285 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 13:48:12,286 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 13:48:12,286 INFO L130 BoogieDeclarations]: Found specification of procedure kref_sub [2021-11-23 13:48:12,286 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_sub [2021-11-23 13:48:12,286 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-23 13:48:12,287 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-23 13:48:12,287 INFO L130 BoogieDeclarations]: Found specification of procedure ipr_bus_reset_done [2021-11-23 13:48:12,287 INFO L138 BoogieDeclarations]: Found implementation of procedure ipr_bus_reset_done [2021-11-23 13:48:12,287 INFO L130 BoogieDeclarations]: Found specification of procedure ipr_erp_start [2021-11-23 13:48:12,287 INFO L138 BoogieDeclarations]: Found implementation of procedure ipr_erp_start [2021-11-23 13:48:12,288 INFO L130 BoogieDeclarations]: Found specification of procedure ipr_queuecommand [2021-11-23 13:48:12,288 INFO L138 BoogieDeclarations]: Found implementation of procedure ipr_queuecommand [2021-11-23 13:48:12,288 INFO L130 BoogieDeclarations]: Found specification of procedure ipr_scsi_eh_done [2021-11-23 13:48:12,288 INFO L138 BoogieDeclarations]: Found implementation of procedure ipr_scsi_eh_done [2021-11-23 13:48:12,288 INFO L130 BoogieDeclarations]: Found specification of procedure ipr_worker_thread [2021-11-23 13:48:12,289 INFO L138 BoogieDeclarations]: Found implementation of procedure ipr_worker_thread [2021-11-23 13:48:12,289 INFO L130 BoogieDeclarations]: Found specification of procedure ipr_fail_all_ops [2021-11-23 13:48:12,289 INFO L138 BoogieDeclarations]: Found implementation of procedure ipr_fail_all_ops [2021-11-23 13:48:12,289 INFO L130 BoogieDeclarations]: Found specification of procedure ipr_reset_cancel_hcam_done [2021-11-23 13:48:12,289 INFO L138 BoogieDeclarations]: Found implementation of procedure ipr_reset_cancel_hcam_done [2021-11-23 13:48:12,290 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_flush_workqueue_53 [2021-11-23 13:48:12,290 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_flush_workqueue_53 [2021-11-23 13:48:12,290 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-23 13:48:12,290 INFO L130 BoogieDeclarations]: Found specification of procedure ipr_erp_done [2021-11-23 13:48:12,291 INFO L138 BoogieDeclarations]: Found implementation of procedure ipr_erp_done [2021-11-23 13:48:12,291 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-23 13:48:12,291 INFO L130 BoogieDeclarations]: Found specification of procedure call_and_disable_work_7 [2021-11-23 13:48:12,291 INFO L138 BoogieDeclarations]: Found implementation of procedure call_and_disable_work_7 [2021-11-23 13:48:12,291 INFO L130 BoogieDeclarations]: Found specification of procedure ipr_reset_reset_work [2021-11-23 13:48:12,292 INFO L138 BoogieDeclarations]: Found implementation of procedure ipr_reset_reset_work [2021-11-23 13:48:12,292 INFO L130 BoogieDeclarations]: Found specification of procedure ipr_wait_for_ops [2021-11-23 13:48:12,292 INFO L138 BoogieDeclarations]: Found implementation of procedure ipr_wait_for_ops [2021-11-23 13:48:12,292 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-23 13:48:12,292 INFO L130 BoogieDeclarations]: Found specification of procedure ipr_erp_cancel_all [2021-11-23 13:48:12,293 INFO L138 BoogieDeclarations]: Found implementation of procedure ipr_erp_cancel_all [2021-11-23 13:48:12,293 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_flush_work_52 [2021-11-23 13:48:12,293 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_flush_work_52 [2021-11-23 13:48:12,293 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_destroy_workqueue_41 [2021-11-23 13:48:12,293 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_destroy_workqueue_41 [2021-11-23 13:48:12,293 INFO L130 BoogieDeclarations]: Found specification of procedure ipr_remove [2021-11-23 13:48:12,294 INFO L138 BoogieDeclarations]: Found implementation of procedure ipr_remove [2021-11-23 13:48:12,294 INFO L130 BoogieDeclarations]: Found specification of procedure ipr_probe [2021-11-23 13:48:12,294 INFO L138 BoogieDeclarations]: Found implementation of procedure ipr_probe [2021-11-23 13:48:12,294 INFO L130 BoogieDeclarations]: Found specification of procedure ipr_initiate_ioa_reset [2021-11-23 13:48:12,294 INFO L138 BoogieDeclarations]: Found implementation of procedure ipr_initiate_ioa_reset [2021-11-23 13:48:12,295 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-23 13:48:12,295 INFO L130 BoogieDeclarations]: Found specification of procedure ipr_probe_ioa_part2 [2021-11-23 13:48:12,295 INFO L138 BoogieDeclarations]: Found implementation of procedure ipr_probe_ioa_part2 [2021-11-23 13:48:12,295 INFO L130 BoogieDeclarations]: Found specification of procedure call_and_disable_all_7 [2021-11-23 13:48:12,295 INFO L138 BoogieDeclarations]: Found implementation of procedure call_and_disable_all_7 [2021-11-23 13:48:12,296 INFO L130 BoogieDeclarations]: Found specification of procedure ipr_eh_host_reset [2021-11-23 13:48:12,296 INFO L138 BoogieDeclarations]: Found implementation of procedure ipr_eh_host_reset [2021-11-23 13:48:12,296 INFO L130 BoogieDeclarations]: Found specification of procedure ipr_reset_cmd_failed [2021-11-23 13:48:12,296 INFO L138 BoogieDeclarations]: Found implementation of procedure ipr_reset_cmd_failed [2021-11-23 13:48:12,296 INFO L130 BoogieDeclarations]: Found specification of procedure ipr_lock_and_done [2021-11-23 13:48:12,297 INFO L138 BoogieDeclarations]: Found implementation of procedure ipr_lock_and_done [2021-11-23 13:48:12,297 INFO L130 BoogieDeclarations]: Found specification of procedure ipr_process_error [2021-11-23 13:48:12,297 INFO L138 BoogieDeclarations]: Found implementation of procedure ipr_process_error [2021-11-23 13:48:12,297 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2021-11-23 13:48:12,297 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2021-11-23 13:48:12,298 INFO L130 BoogieDeclarations]: Found specification of procedure ipr_reset_ioa_job [2021-11-23 13:48:12,298 INFO L138 BoogieDeclarations]: Found implementation of procedure ipr_reset_ioa_job [2021-11-23 13:48:12,298 INFO L130 BoogieDeclarations]: Found specification of procedure ipr_timeout [2021-11-23 13:48:12,298 INFO L138 BoogieDeclarations]: Found implementation of procedure ipr_timeout [2021-11-23 13:48:12,298 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-23 13:48:12,299 INFO L130 BoogieDeclarations]: Found specification of procedure ipr_oper_timeout [2021-11-23 13:48:12,299 INFO L138 BoogieDeclarations]: Found implementation of procedure ipr_oper_timeout [2021-11-23 13:48:15,925 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 13:48:15,928 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 13:49:43,087 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 13:49:43,141 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-23 13:49:43,141 INFO L301 CfgBuilder]: Removed 2 assume(true) statements. [2021-11-23 13:49:43,155 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:49:43 BoogieIcfgContainer [2021-11-23 13:49:43,155 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-23 13:49:43,157 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-23 13:49:43,157 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-23 13:49:43,166 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-23 13:49:43,167 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 01:47:55" (1/3) ... [2021-11-23 13:49:43,168 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5e1e76e8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 01:49:43, skipping insertion in model container [2021-11-23 13:49:43,169 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:48:05" (2/3) ... [2021-11-23 13:49:43,170 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5e1e76e8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 01:49:43, skipping insertion in model container [2021-11-23 13:49:43,177 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:49:43" (3/3) ... [2021-11-23 13:49:43,180 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-43_2a-drivers--scsi--ipr.ko-entry_point.cil.out.i [2021-11-23 13:49:43,188 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-23 13:49:43,188 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 13 error locations. [2021-11-23 13:49:43,299 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-23 13:49:43,306 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 13:49:43,306 INFO L340 AbstractCegarLoop]: Starting to check reachability of 13 error locations. [2021-11-23 13:49:43,507 INFO L276 IsEmpty]: Start isEmpty. Operand has 13583 states, 13346 states have (on average 1.3424246965382887) internal successors, (17916), 13404 states have internal predecessors, (17916), 175 states have call successors, (175), 48 states have call predecessors, (175), 48 states have return successors, (175), 158 states have call predecessors, (175), 175 states have call successors, (175) [2021-11-23 13:49:43,546 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 281 [2021-11-23 13:49:43,547 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 13:49:43,548 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:49:43,550 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [##fun~$Pointer$~TO~intErr0ASSERT_VIOLATIONERROR_FUNCTION, ipr_probe_ioaErr0ASSERT_VIOLATIONERROR_FUNCTION, ipr_probe_ioaErr1ASSERT_VIOLATIONERROR_FUNCTION (and 10 more)] === [2021-11-23 13:49:43,559 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 13:49:43,559 INFO L85 PathProgramCache]: Analyzing trace with hash -560417995, now seen corresponding path program 1 times [2021-11-23 13:49:43,569 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 13:49:43,569 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [90048365] [2021-11-23 13:49:43,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:49:43,570 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 13:49:44,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 13:49:45,564 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 13:49:45,565 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 13:49:45,566 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [90048365] [2021-11-23 13:49:45,568 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [90048365] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 13:49:45,573 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 13:49:45,574 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-23 13:49:45,576 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2007469220] [2021-11-23 13:49:45,576 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 13:49:45,585 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-23 13:49:45,585 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 13:49:45,629 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-23 13:49:45,630 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-23 13:49:45,672 INFO L87 Difference]: Start difference. First operand has 13583 states, 13346 states have (on average 1.3424246965382887) internal successors, (17916), 13404 states have internal predecessors, (17916), 175 states have call successors, (175), 48 states have call predecessors, (175), 48 states have return successors, (175), 158 states have call predecessors, (175), 175 states have call successors, (175) Second operand has 2 states, 2 states have (on average 140.0) internal successors, (280), 2 states have internal predecessors, (280), 0 states have call successors, (0), 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 13:49:46,509 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 13:49:46,509 INFO L93 Difference]: Finished difference Result 27149 states and 36689 transitions. [2021-11-23 13:49:46,511 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-23 13:49:46,513 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 140.0) internal successors, (280), 2 states have internal predecessors, (280), 0 states have call successors, (0), 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 280 [2021-11-23 13:49:46,513 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 13:49:46,670 INFO L225 Difference]: With dead ends: 27149 [2021-11-23 13:49:46,670 INFO L226 Difference]: Without dead ends: 13495 [2021-11-23 13:49:46,789 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-23 13:49:46,795 INFO L933 BasicCegarLoop]: 18133 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 18133 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-23 13:49:46,796 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 18133 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-23 13:49:46,869 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13495 states. [2021-11-23 13:49:47,708 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13495 to 13495. [2021-11-23 13:49:47,745 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13495 states, 13259 states have (on average 1.330492495663323) internal successors, (17641), 13316 states have internal predecessors, (17641), 175 states have call successors, (175), 48 states have call predecessors, (175), 48 states have return successors, (175), 158 states have call predecessors, (175), 175 states have call successors, (175) [2021-11-23 13:49:47,850 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13495 states to 13495 states and 17991 transitions. [2021-11-23 13:49:47,853 INFO L78 Accepts]: Start accepts. Automaton has 13495 states and 17991 transitions. Word has length 280 [2021-11-23 13:49:47,853 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 13:49:47,854 INFO L470 AbstractCegarLoop]: Abstraction has 13495 states and 17991 transitions. [2021-11-23 13:49:47,855 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 140.0) internal successors, (280), 2 states have internal predecessors, (280), 0 states have call successors, (0), 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 13:49:47,855 INFO L276 IsEmpty]: Start isEmpty. Operand 13495 states and 17991 transitions. [2021-11-23 13:49:47,864 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 281 [2021-11-23 13:49:47,865 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 13:49:47,865 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:49:47,866 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-23 13:49:47,866 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [##fun~$Pointer$~TO~intErr0ASSERT_VIOLATIONERROR_FUNCTION, ipr_probe_ioaErr0ASSERT_VIOLATIONERROR_FUNCTION, ipr_probe_ioaErr1ASSERT_VIOLATIONERROR_FUNCTION (and 10 more)] === [2021-11-23 13:49:47,867 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 13:49:47,867 INFO L85 PathProgramCache]: Analyzing trace with hash 1540480391, now seen corresponding path program 1 times [2021-11-23 13:49:47,868 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 13:49:47,868 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [213365610] [2021-11-23 13:49:47,868 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:49:47,868 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 13:49:48,519 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-23 13:49:48,520 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [479803753] [2021-11-23 13:49:48,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:49:48,521 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 13:49:48,521 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_241839f4-0580-40c6-917b-0d6d843d9742/bin/uautomizer-wIGwrQj20G/z3 [2021-11-23 13:49:48,523 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_241839f4-0580-40c6-917b-0d6d843d9742/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 13:49:48,547 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_241839f4-0580-40c6-917b-0d6d843d9742/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-23 13:49:54,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 13:49:54,113 INFO L263 TraceCheckSpWp]: Trace formula consists of 12642 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-23 13:49:54,150 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 13:49:54,711 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 13:49:54,712 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-23 13:49:54,712 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 13:49:54,712 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [213365610] [2021-11-23 13:49:54,712 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-23 13:49:54,713 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [479803753] [2021-11-23 13:49:54,713 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [479803753] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 13:49:54,713 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 13:49:54,713 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 13:49:54,719 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [409790709] [2021-11-23 13:49:54,719 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 13:49:54,721 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 13:49:54,723 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 13:49:54,724 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 13:49:54,724 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 13:49:54,725 INFO L87 Difference]: Start difference. First operand 13495 states and 17991 transitions. Second operand has 3 states, 3 states have (on average 93.33333333333333) internal successors, (280), 3 states have internal predecessors, (280), 0 states have call successors, (0), 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 13:49:56,572 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 13:49:56,573 INFO L93 Difference]: Finished difference Result 39771 states and 53180 transitions. [2021-11-23 13:49:56,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 13:49:56,574 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 93.33333333333333) internal successors, (280), 3 states have internal predecessors, (280), 0 states have call successors, (0), 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 280 [2021-11-23 13:49:56,579 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 13:49:56,823 INFO L225 Difference]: With dead ends: 39771 [2021-11-23 13:49:56,823 INFO L226 Difference]: Without dead ends: 26537 [2021-11-23 13:49:56,909 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 279 GetRequests, 278 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 13:49:56,911 INFO L933 BasicCegarLoop]: 18162 mSDtfsCounter, 17751 mSDsluCounter, 17703 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17751 SdHoareTripleChecker+Valid, 35865 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-11-23 13:49:56,912 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [17751 Valid, 35865 Invalid, 10 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-11-23 13:49:56,972 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26537 states. [2021-11-23 13:49:57,848 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26537 to 26457. [2021-11-23 13:49:57,883 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26457 states, 25999 states have (on average 1.3347436439863072) internal successors, (34702), 26101 states have internal predecessors, (34702), 349 states have call successors, (349), 96 states have call predecessors, (349), 96 states have return successors, (349), 315 states have call predecessors, (349), 349 states have call successors, (349) [2021-11-23 13:49:58,024 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26457 states to 26457 states and 35400 transitions. [2021-11-23 13:49:58,025 INFO L78 Accepts]: Start accepts. Automaton has 26457 states and 35400 transitions. Word has length 280 [2021-11-23 13:49:58,028 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 13:49:58,029 INFO L470 AbstractCegarLoop]: Abstraction has 26457 states and 35400 transitions. [2021-11-23 13:49:58,029 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 93.33333333333333) internal successors, (280), 3 states have internal predecessors, (280), 0 states have call successors, (0), 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 13:49:58,029 INFO L276 IsEmpty]: Start isEmpty. Operand 26457 states and 35400 transitions. [2021-11-23 13:49:58,040 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 297 [2021-11-23 13:49:58,040 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 13:49:58,041 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:49:58,111 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_241839f4-0580-40c6-917b-0d6d843d9742/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-11-23 13:49:58,267 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_241839f4-0580-40c6-917b-0d6d843d9742/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 13:49:58,267 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [##fun~$Pointer$~TO~intErr0ASSERT_VIOLATIONERROR_FUNCTION, ipr_probe_ioaErr0ASSERT_VIOLATIONERROR_FUNCTION, ipr_probe_ioaErr1ASSERT_VIOLATIONERROR_FUNCTION (and 10 more)] === [2021-11-23 13:49:58,268 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 13:49:58,268 INFO L85 PathProgramCache]: Analyzing trace with hash -661917123, now seen corresponding path program 1 times [2021-11-23 13:49:58,268 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 13:49:58,269 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [67459190] [2021-11-23 13:49:58,269 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:49:58,269 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 13:49:58,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 13:49:59,862 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 13:49:59,862 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 13:49:59,862 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [67459190] [2021-11-23 13:49:59,866 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [67459190] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 13:49:59,866 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 13:49:59,867 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 13:49:59,867 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [948751047] [2021-11-23 13:49:59,869 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 13:49:59,870 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 13:49:59,870 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 13:49:59,871 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 13:49:59,871 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 13:49:59,872 INFO L87 Difference]: Start difference. First operand 26457 states and 35400 transitions. Second operand has 3 states, 3 states have (on average 98.66666666666667) internal successors, (296), 3 states have internal predecessors, (296), 0 states have call successors, (0), 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 13:50:02,034 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 13:50:02,034 INFO L93 Difference]: Finished difference Result 78508 states and 105180 transitions. [2021-11-23 13:50:02,034 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 13:50:02,035 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 98.66666666666667) internal successors, (296), 3 states have internal predecessors, (296), 0 states have call successors, (0), 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 296 [2021-11-23 13:50:02,036 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 13:50:02,302 INFO L225 Difference]: With dead ends: 78508 [2021-11-23 13:50:02,302 INFO L226 Difference]: Without dead ends: 52312 [2021-11-23 13:50:02,411 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 13:50:02,417 INFO L933 BasicCegarLoop]: 18406 mSDtfsCounter, 17697 mSDsluCounter, 17694 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17697 SdHoareTripleChecker+Valid, 36100 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-11-23 13:50:02,422 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [17697 Valid, 36100 Invalid, 17 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-11-23 13:50:02,494 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52312 states. [2021-11-23 13:50:04,133 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52312 to 52292. [2021-11-23 13:50:04,193 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52292 states, 51395 states have (on average 1.3360443622920517) internal successors, (68666), 51587 states have internal predecessors, (68666), 692 states have call successors, (692), 192 states have call predecessors, (692), 192 states have return successors, (692), 624 states have call predecessors, (692), 692 states have call successors, (692) [2021-11-23 13:50:04,372 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52292 states to 52292 states and 70050 transitions. [2021-11-23 13:50:04,374 INFO L78 Accepts]: Start accepts. Automaton has 52292 states and 70050 transitions. Word has length 296 [2021-11-23 13:50:04,374 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 13:50:04,375 INFO L470 AbstractCegarLoop]: Abstraction has 52292 states and 70050 transitions. [2021-11-23 13:50:04,375 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 98.66666666666667) internal successors, (296), 3 states have internal predecessors, (296), 0 states have call successors, (0), 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 13:50:04,375 INFO L276 IsEmpty]: Start isEmpty. Operand 52292 states and 70050 transitions. [2021-11-23 13:50:04,388 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 304 [2021-11-23 13:50:04,388 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 13:50:04,388 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:50:04,389 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-23 13:50:04,389 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [##fun~$Pointer$~TO~intErr0ASSERT_VIOLATIONERROR_FUNCTION, ipr_probe_ioaErr0ASSERT_VIOLATIONERROR_FUNCTION, ipr_probe_ioaErr1ASSERT_VIOLATIONERROR_FUNCTION (and 10 more)] === [2021-11-23 13:50:04,389 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 13:50:04,390 INFO L85 PathProgramCache]: Analyzing trace with hash -27020696, now seen corresponding path program 1 times [2021-11-23 13:50:04,390 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 13:50:04,390 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1039295772] [2021-11-23 13:50:04,390 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:50:04,391 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 13:50:05,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 13:50:05,516 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 13:50:05,517 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 13:50:05,517 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1039295772] [2021-11-23 13:50:05,517 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1039295772] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 13:50:05,518 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 13:50:05,518 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 13:50:05,518 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [460978070] [2021-11-23 13:50:05,518 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 13:50:05,519 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 13:50:05,519 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 13:50:05,520 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 13:50:05,520 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 13:50:05,521 INFO L87 Difference]: Start difference. First operand 52292 states and 70050 transitions. Second operand has 3 states, 3 states have (on average 101.0) internal successors, (303), 3 states have internal predecessors, (303), 0 states have call successors, (0), 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 13:50:09,819 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 13:50:09,819 INFO L93 Difference]: Finished difference Result 155188 states and 209349 transitions. [2021-11-23 13:50:09,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 13:50:09,820 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 101.0) internal successors, (303), 3 states have internal predecessors, (303), 0 states have call successors, (0), 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 303 [2021-11-23 13:50:09,822 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 13:50:10,565 INFO L225 Difference]: With dead ends: 155188 [2021-11-23 13:50:10,566 INFO L226 Difference]: Without dead ends: 103157 [2021-11-23 13:50:10,825 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 13:50:10,828 INFO L933 BasicCegarLoop]: 18811 mSDtfsCounter, 17746 mSDsluCounter, 17822 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17746 SdHoareTripleChecker+Valid, 36633 SdHoareTripleChecker+Invalid, 57 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-11-23 13:50:10,830 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [17746 Valid, 36633 Invalid, 57 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [6 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-11-23 13:50:10,971 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103157 states. [2021-11-23 13:50:14,935 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103157 to 103065. [2021-11-23 13:50:15,138 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 103065 states, 101320 states have (on average 1.3366857481247532) internal successors, (135433), 101676 states have internal predecessors, (135433), 1348 states have call successors, (1348), 380 states have call predecessors, (1348), 384 states have return successors, (2696), 1232 states have call predecessors, (2696), 1348 states have call successors, (2696) [2021-11-23 13:50:15,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103065 states to 103065 states and 139477 transitions. [2021-11-23 13:50:15,764 INFO L78 Accepts]: Start accepts. Automaton has 103065 states and 139477 transitions. Word has length 303 [2021-11-23 13:50:15,765 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 13:50:15,765 INFO L470 AbstractCegarLoop]: Abstraction has 103065 states and 139477 transitions. [2021-11-23 13:50:15,766 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 101.0) internal successors, (303), 3 states have internal predecessors, (303), 0 states have call successors, (0), 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 13:50:15,766 INFO L276 IsEmpty]: Start isEmpty. Operand 103065 states and 139477 transitions. [2021-11-23 13:50:15,846 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 356 [2021-11-23 13:50:15,846 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 13:50:15,847 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:50:15,847 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-23 13:50:15,847 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ipr_worker_threadErr0ASSERT_VIOLATIONERROR_FUNCTION === [##fun~$Pointer$~TO~intErr0ASSERT_VIOLATIONERROR_FUNCTION, ipr_probe_ioaErr0ASSERT_VIOLATIONERROR_FUNCTION, ipr_probe_ioaErr1ASSERT_VIOLATIONERROR_FUNCTION (and 10 more)] === [2021-11-23 13:50:15,848 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 13:50:15,848 INFO L85 PathProgramCache]: Analyzing trace with hash -1394404682, now seen corresponding path program 1 times [2021-11-23 13:50:15,848 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 13:50:15,849 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [74958948] [2021-11-23 13:50:15,849 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:50:15,849 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 13:50:17,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 13:50:17,590 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 13:50:17,591 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 13:50:17,591 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [74958948] [2021-11-23 13:50:17,591 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [74958948] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 13:50:17,591 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 13:50:17,592 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 13:50:17,592 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [654275064] [2021-11-23 13:50:17,592 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 13:50:17,593 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 13:50:17,593 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 13:50:17,594 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 13:50:17,594 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 13:50:17,595 INFO L87 Difference]: Start difference. First operand 103065 states and 139477 transitions. Second operand has 3 states, 3 states have (on average 118.0) internal successors, (354), 3 states have internal predecessors, (354), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:50:22,239 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 13:50:22,240 INFO L93 Difference]: Finished difference Result 205877 states and 281376 transitions. [2021-11-23 13:50:22,240 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 13:50:22,241 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 118.0) internal successors, (354), 3 states have internal predecessors, (354), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 355 [2021-11-23 13:50:22,242 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 13:50:23,039 INFO L225 Difference]: With dead ends: 205877 [2021-11-23 13:50:23,039 INFO L226 Difference]: Without dead ends: 103073 [2021-11-23 13:50:23,618 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 13:50:23,619 INFO L933 BasicCegarLoop]: 17986 mSDtfsCounter, 0 mSDsluCounter, 17979 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 35965 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-23 13:50:23,619 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 35965 Invalid, 14 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [5 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-23 13:50:23,734 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103073 states. [2021-11-23 13:50:26,891 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103073 to 103065. [2021-11-23 13:50:27,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 103065 states, 101320 states have (on average 1.3364488748519543) internal successors, (135409), 101676 states have internal predecessors, (135409), 1348 states have call successors, (1348), 380 states have call predecessors, (1348), 384 states have return successors, (2696), 1232 states have call predecessors, (2696), 1348 states have call successors, (2696) [2021-11-23 13:50:27,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103065 states to 103065 states and 139453 transitions. [2021-11-23 13:50:27,609 INFO L78 Accepts]: Start accepts. Automaton has 103065 states and 139453 transitions. Word has length 355 [2021-11-23 13:50:27,610 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 13:50:27,610 INFO L470 AbstractCegarLoop]: Abstraction has 103065 states and 139453 transitions. [2021-11-23 13:50:27,611 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 118.0) internal successors, (354), 3 states have internal predecessors, (354), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:50:27,611 INFO L276 IsEmpty]: Start isEmpty. Operand 103065 states and 139453 transitions. [2021-11-23 13:50:27,703 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 358 [2021-11-23 13:50:27,703 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 13:50:27,704 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:50:27,704 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-23 13:50:27,704 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ipr_worker_threadErr0ASSERT_VIOLATIONERROR_FUNCTION === [##fun~$Pointer$~TO~intErr0ASSERT_VIOLATIONERROR_FUNCTION, ipr_probe_ioaErr0ASSERT_VIOLATIONERROR_FUNCTION, ipr_probe_ioaErr1ASSERT_VIOLATIONERROR_FUNCTION (and 10 more)] === [2021-11-23 13:50:27,705 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 13:50:27,705 INFO L85 PathProgramCache]: Analyzing trace with hash -193773199, now seen corresponding path program 1 times [2021-11-23 13:50:27,708 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 13:50:27,709 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1490224106] [2021-11-23 13:50:27,709 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:50:27,709 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 13:50:29,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 13:50:29,672 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 13:50:29,672 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 13:50:29,672 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1490224106] [2021-11-23 13:50:29,673 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1490224106] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 13:50:29,673 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 13:50:29,673 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 13:50:29,673 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2012245531] [2021-11-23 13:50:29,674 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 13:50:29,675 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 13:50:29,675 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 13:50:29,675 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 13:50:29,676 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 13:50:29,676 INFO L87 Difference]: Start difference. First operand 103065 states and 139453 transitions. Second operand has 3 states, 3 states have (on average 118.66666666666667) internal successors, (356), 3 states have internal predecessors, (356), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:50:35,060 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 13:50:35,060 INFO L93 Difference]: Finished difference Result 174835 states and 242285 transitions. [2021-11-23 13:50:35,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 13:50:35,061 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 118.66666666666667) internal successors, (356), 3 states have internal predecessors, (356), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 357 [2021-11-23 13:50:35,062 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 13:50:36,179 INFO L225 Difference]: With dead ends: 174835 [2021-11-23 13:50:36,179 INFO L226 Difference]: Without dead ends: 174809 [2021-11-23 13:50:36,299 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 13:50:36,301 INFO L933 BasicCegarLoop]: 25890 mSDtfsCounter, 14898 mSDsluCounter, 15246 mSDsCounter, 0 mSdLazyCounter, 232 mSolverCounterSat, 231 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14898 SdHoareTripleChecker+Valid, 41136 SdHoareTripleChecker+Invalid, 463 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 231 IncrementalHoareTripleChecker+Valid, 232 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2021-11-23 13:50:36,301 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [14898 Valid, 41136 Invalid, 463 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [231 Valid, 232 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2021-11-23 13:50:36,513 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 174809 states.