./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--input--misc--ims-pcu.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version dbf71c69 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2eb52e5-dc1a-436d-a8cb-b49141cad614/bin/uautomizer-J5u9QxTXDZ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2eb52e5-dc1a-436d-a8cb-b49141cad614/bin/uautomizer-J5u9QxTXDZ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2eb52e5-dc1a-436d-a8cb-b49141cad614/bin/uautomizer-J5u9QxTXDZ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2eb52e5-dc1a-436d-a8cb-b49141cad614/bin/uautomizer-J5u9QxTXDZ/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--input--misc--ims-pcu.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2eb52e5-dc1a-436d-a8cb-b49141cad614/bin/uautomizer-J5u9QxTXDZ/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2eb52e5-dc1a-436d-a8cb-b49141cad614/bin/uautomizer-J5u9QxTXDZ --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 7f108eec0e6f75d7c7724c96156fb3bec5ecbcd0f2a8def1b3ebffa34d9deb6c --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-dbf71c6-m [2022-10-17 10:56:32,051 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-17 10:56:32,053 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-17 10:56:32,105 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-17 10:56:32,105 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-17 10:56:32,107 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-17 10:56:32,113 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-17 10:56:32,119 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-17 10:56:32,125 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-17 10:56:32,126 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-17 10:56:32,128 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-17 10:56:32,130 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-17 10:56:32,132 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-17 10:56:32,136 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-17 10:56:32,138 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-17 10:56:32,140 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-17 10:56:32,143 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-17 10:56:32,151 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-17 10:56:32,153 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-17 10:56:32,156 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-17 10:56:32,160 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-17 10:56:32,163 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-17 10:56:32,164 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-17 10:56:32,166 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-17 10:56:32,174 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-10-17 10:56:32,175 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-10-17 10:56:32,175 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-10-17 10:56:32,179 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-10-17 10:56:32,181 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-10-17 10:56:32,183 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-10-17 10:56:32,183 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-17 10:56:32,185 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-17 10:56:32,187 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-17 10:56:32,189 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-17 10:56:32,190 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-17 10:56:32,191 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-17 10:56:32,192 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-17 10:56:32,192 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-17 10:56:32,192 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-17 10:56:32,193 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-17 10:56:32,194 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-17 10:56:32,196 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2eb52e5-dc1a-436d-a8cb-b49141cad614/bin/uautomizer-J5u9QxTXDZ/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-10-17 10:56:32,244 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-17 10:56:32,245 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-17 10:56:32,246 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-17 10:56:32,246 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-17 10:56:32,247 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-17 10:56:32,248 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-17 10:56:32,249 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-17 10:56:32,249 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-17 10:56:32,249 INFO L138 SettingsManager]: * Use SBE=true [2022-10-17 10:56:32,250 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-17 10:56:32,251 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-17 10:56:32,251 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-17 10:56:32,252 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-17 10:56:32,252 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-17 10:56:32,252 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-17 10:56:32,253 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-17 10:56:32,253 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-17 10:56:32,253 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-17 10:56:32,253 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-17 10:56:32,254 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-17 10:56:32,254 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-17 10:56:32,254 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-17 10:56:32,255 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-17 10:56:32,255 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-17 10:56:32,255 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-17 10:56:32,255 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-17 10:56:32,258 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-17 10:56:32,258 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-10-17 10:56:32,258 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-10-17 10:56:32,259 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-17 10:56:32,259 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_a2eb52e5-dc1a-436d-a8cb-b49141cad614/bin/uautomizer-J5u9QxTXDZ/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2eb52e5-dc1a-436d-a8cb-b49141cad614/bin/uautomizer-J5u9QxTXDZ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7f108eec0e6f75d7c7724c96156fb3bec5ecbcd0f2a8def1b3ebffa34d9deb6c [2022-10-17 10:56:32,554 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-17 10:56:32,590 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-17 10:56:32,594 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-17 10:56:32,596 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-17 10:56:32,597 INFO L275 PluginConnector]: CDTParser initialized [2022-10-17 10:56:32,598 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2eb52e5-dc1a-436d-a8cb-b49141cad614/bin/uautomizer-J5u9QxTXDZ/../../sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--input--misc--ims-pcu.ko-entry_point.cil.out.i [2022-10-17 10:56:32,671 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2eb52e5-dc1a-436d-a8cb-b49141cad614/bin/uautomizer-J5u9QxTXDZ/data/4e7998343/e3485fb53c3f4dfe98d614fa91ca1163/FLAGc244b25a4 [2022-10-17 10:56:33,651 INFO L306 CDTParser]: Found 1 translation units. [2022-10-17 10:56:33,652 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2eb52e5-dc1a-436d-a8cb-b49141cad614/sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--input--misc--ims-pcu.ko-entry_point.cil.out.i [2022-10-17 10:56:33,713 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2eb52e5-dc1a-436d-a8cb-b49141cad614/bin/uautomizer-J5u9QxTXDZ/data/4e7998343/e3485fb53c3f4dfe98d614fa91ca1163/FLAGc244b25a4 [2022-10-17 10:56:34,036 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2eb52e5-dc1a-436d-a8cb-b49141cad614/bin/uautomizer-J5u9QxTXDZ/data/4e7998343/e3485fb53c3f4dfe98d614fa91ca1163 [2022-10-17 10:56:34,040 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-17 10:56:34,044 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-10-17 10:56:34,047 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-17 10:56:34,047 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-17 10:56:34,050 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-17 10:56:34,051 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 10:56:34" (1/1) ... [2022-10-17 10:56:34,053 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@33668caf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:56:34, skipping insertion in model container [2022-10-17 10:56:34,053 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 10:56:34" (1/1) ... [2022-10-17 10:56:34,061 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-17 10:56:34,190 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-17 10:56:35,241 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_a2eb52e5-dc1a-436d-a8cb-b49141cad614/sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--input--misc--ims-pcu.ko-entry_point.cil.out.i[114617,114630] [2022-10-17 10:56:35,998 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 10:56:36,030 INFO L203 MainTranslator]: Completed pre-run [2022-10-17 10:56:36,166 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_a2eb52e5-dc1a-436d-a8cb-b49141cad614/sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--input--misc--ims-pcu.ko-entry_point.cil.out.i[114617,114630] [2022-10-17 10:56:36,408 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 10:56:36,557 INFO L208 MainTranslator]: Completed translation [2022-10-17 10:56:36,558 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:56:36 WrapperNode [2022-10-17 10:56:36,559 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-17 10:56:36,561 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-17 10:56:36,561 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-17 10:56:36,562 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-17 10:56:36,570 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:56:36" (1/1) ... [2022-10-17 10:56:36,686 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:56:36" (1/1) ... [2022-10-17 10:56:36,894 INFO L138 Inliner]: procedures = 222, calls = 1486, calls flagged for inlining = 101, calls inlined = 96, statements flattened = 3995 [2022-10-17 10:56:36,895 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-17 10:56:36,896 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-17 10:56:36,896 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-17 10:56:36,896 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-17 10:56:36,909 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:56:36" (1/1) ... [2022-10-17 10:56:36,909 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:56:36" (1/1) ... [2022-10-17 10:56:36,950 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:56:36" (1/1) ... [2022-10-17 10:56:36,950 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:56:36" (1/1) ... [2022-10-17 10:56:37,089 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:56:36" (1/1) ... [2022-10-17 10:56:37,115 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:56:36" (1/1) ... [2022-10-17 10:56:37,162 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:56:36" (1/1) ... [2022-10-17 10:56:37,187 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:56:36" (1/1) ... [2022-10-17 10:56:37,229 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-17 10:56:37,231 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-17 10:56:37,231 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-17 10:56:37,232 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-17 10:56:37,236 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:56:36" (1/1) ... [2022-10-17 10:56:37,245 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-17 10:56:37,258 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2eb52e5-dc1a-436d-a8cb-b49141cad614/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:56:37,273 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2eb52e5-dc1a-436d-a8cb-b49141cad614/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-10-17 10:56:37,292 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2eb52e5-dc1a-436d-a8cb-b49141cad614/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-10-17 10:56:37,335 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab32 [2022-10-17 10:56:37,335 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab32 [2022-10-17 10:56:37,336 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_set_intfdata_18 [2022-10-17 10:56:37,336 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_set_intfdata_18 [2022-10-17 10:56:37,336 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-10-17 10:56:37,336 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-10-17 10:56:37,336 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-10-17 10:56:37,337 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-10-17 10:56:37,337 INFO L130 BoogieDeclarations]: Found specification of procedure put_unaligned_le32 [2022-10-17 10:56:37,337 INFO L138 BoogieDeclarations]: Found implementation of procedure put_unaligned_le32 [2022-10-17 10:56:37,337 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_submit_urb [2022-10-17 10:56:37,338 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_submit_urb [2022-10-17 10:56:37,338 INFO L130 BoogieDeclarations]: Found specification of procedure ims_pcu_handle_firmware_update [2022-10-17 10:56:37,338 INFO L138 BoogieDeclarations]: Found implementation of procedure ims_pcu_handle_firmware_update [2022-10-17 10:56:37,338 INFO L130 BoogieDeclarations]: Found specification of procedure usb_make_path [2022-10-17 10:56:37,338 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_make_path [2022-10-17 10:56:37,339 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-10-17 10:56:37,339 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-10-17 10:56:37,339 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_maxp [2022-10-17 10:56:37,339 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_maxp [2022-10-17 10:56:37,340 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_alloc_urb [2022-10-17 10:56:37,340 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_alloc_urb [2022-10-17 10:56:37,340 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_interruptible_nested [2022-10-17 10:56:37,340 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_interruptible_nested [2022-10-17 10:56:37,341 INFO L130 BoogieDeclarations]: Found specification of procedure ims_pcu_get_info [2022-10-17 10:56:37,341 INFO L138 BoogieDeclarations]: Found implementation of procedure ims_pcu_get_info [2022-10-17 10:56:37,341 INFO L130 BoogieDeclarations]: Found specification of procedure strlcat [2022-10-17 10:56:37,341 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcat [2022-10-17 10:56:37,341 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2022-10-17 10:56:37,342 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2022-10-17 10:56:37,342 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-10-17 10:56:37,342 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-10-17 10:56:37,342 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-10-17 10:56:37,343 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-10-17 10:56:37,343 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-10-17 10:56:37,343 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-10-17 10:56:37,343 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop___0 [2022-10-17 10:56:37,343 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop___0 [2022-10-17 10:56:37,344 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-10-17 10:56:37,344 INFO L130 BoogieDeclarations]: Found specification of procedure input_event [2022-10-17 10:56:37,345 INFO L138 BoogieDeclarations]: Found implementation of procedure input_event [2022-10-17 10:56:37,345 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2022-10-17 10:56:37,345 INFO L130 BoogieDeclarations]: Found specification of procedure ihex_next_binrec [2022-10-17 10:56:37,346 INFO L138 BoogieDeclarations]: Found implementation of procedure ihex_next_binrec [2022-10-17 10:56:37,346 INFO L130 BoogieDeclarations]: Found specification of procedure usb_free_coherent [2022-10-17 10:56:37,346 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_free_coherent [2022-10-17 10:56:37,346 INFO L130 BoogieDeclarations]: Found specification of procedure ims_pcu_buffers_free [2022-10-17 10:56:37,347 INFO L138 BoogieDeclarations]: Found implementation of procedure ims_pcu_buffers_free [2022-10-17 10:56:37,347 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-10-17 10:56:37,347 INFO L130 BoogieDeclarations]: Found specification of procedure usb_ifnum_to_if [2022-10-17 10:56:37,347 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_ifnum_to_if [2022-10-17 10:56:37,348 INFO L130 BoogieDeclarations]: Found specification of procedure __xadd_wrong_size [2022-10-17 10:56:37,348 INFO L130 BoogieDeclarations]: Found specification of procedure input_allocate_device [2022-10-17 10:56:37,348 INFO L138 BoogieDeclarations]: Found implementation of procedure input_allocate_device [2022-10-17 10:56:37,349 INFO L130 BoogieDeclarations]: Found specification of procedure ims_pcu_attribute_show [2022-10-17 10:56:37,349 INFO L138 BoogieDeclarations]: Found implementation of procedure ims_pcu_attribute_show [2022-10-17 10:56:37,350 INFO L130 BoogieDeclarations]: Found specification of procedure get_unaligned_le32 [2022-10-17 10:56:37,351 INFO L138 BoogieDeclarations]: Found implementation of procedure get_unaligned_le32 [2022-10-17 10:56:37,351 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-10-17 10:56:37,352 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-10-17 10:56:37,352 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2022-10-17 10:56:37,352 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2022-10-17 10:56:37,352 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2022-10-17 10:56:37,353 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2022-10-17 10:56:37,353 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab16 [2022-10-17 10:56:37,354 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab16 [2022-10-17 10:56:37,354 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2022-10-17 10:56:37,355 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2022-10-17 10:56:37,355 INFO L130 BoogieDeclarations]: Found specification of procedure __ims_pcu_execute_command [2022-10-17 10:56:37,355 INFO L138 BoogieDeclarations]: Found implementation of procedure __ims_pcu_execute_command [2022-10-17 10:56:37,355 INFO L130 BoogieDeclarations]: Found specification of procedure release_firmware [2022-10-17 10:56:37,356 INFO L138 BoogieDeclarations]: Found implementation of procedure release_firmware [2022-10-17 10:56:37,356 INFO L130 BoogieDeclarations]: Found specification of procedure __ims_pcu_execute_bl_command [2022-10-17 10:56:37,356 INFO L138 BoogieDeclarations]: Found implementation of procedure __ims_pcu_execute_bl_command [2022-10-17 10:56:37,356 INFO L130 BoogieDeclarations]: Found specification of procedure input_report_key [2022-10-17 10:56:37,357 INFO L138 BoogieDeclarations]: Found implementation of procedure input_report_key [2022-10-17 10:56:37,358 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-10-17 10:56:37,358 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2022-10-17 10:56:37,358 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2022-10-17 10:56:37,358 INFO L130 BoogieDeclarations]: Found specification of procedure input_report_abs [2022-10-17 10:56:37,359 INFO L138 BoogieDeclarations]: Found implementation of procedure input_report_abs [2022-10-17 10:56:37,359 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-10-17 10:56:37,359 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_8 [2022-10-17 10:56:37,360 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_8 [2022-10-17 10:56:37,360 INFO L130 BoogieDeclarations]: Found specification of procedure input_free_device [2022-10-17 10:56:37,360 INFO L138 BoogieDeclarations]: Found implementation of procedure input_free_device [2022-10-17 10:56:37,360 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-10-17 10:56:37,360 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_xfer_bulk [2022-10-17 10:56:37,361 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_xfer_bulk [2022-10-17 10:56:37,361 INFO L130 BoogieDeclarations]: Found specification of procedure sysfs_remove_group [2022-10-17 10:56:37,362 INFO L138 BoogieDeclarations]: Found implementation of procedure sysfs_remove_group [2022-10-17 10:56:37,362 INFO L130 BoogieDeclarations]: Found specification of procedure ims_pcu_destroy_backlight [2022-10-17 10:56:37,362 INFO L138 BoogieDeclarations]: Found implementation of procedure ims_pcu_destroy_backlight [2022-10-17 10:56:37,363 INFO L130 BoogieDeclarations]: Found specification of procedure ims_pcu_attribute_store [2022-10-17 10:56:37,363 INFO L138 BoogieDeclarations]: Found implementation of procedure ims_pcu_attribute_store [2022-10-17 10:56:37,364 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-10-17 10:56:37,366 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-10-17 10:56:37,366 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2022-10-17 10:56:37,366 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2022-10-17 10:56:37,367 INFO L130 BoogieDeclarations]: Found specification of procedure ims_pcu_resume [2022-10-17 10:56:37,367 INFO L138 BoogieDeclarations]: Found implementation of procedure ims_pcu_resume [2022-10-17 10:56:37,368 INFO L130 BoogieDeclarations]: Found specification of procedure usb_kill_urb [2022-10-17 10:56:37,368 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_kill_urb [2022-10-17 10:56:37,368 INFO L130 BoogieDeclarations]: Found specification of procedure ims_pcu_destroy_buttons [2022-10-17 10:56:37,368 INFO L138 BoogieDeclarations]: Found implementation of procedure ims_pcu_destroy_buttons [2022-10-17 10:56:37,369 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-10-17 10:56:37,369 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-10-17 10:56:37,369 INFO L130 BoogieDeclarations]: Found specification of procedure ims_pcu_start_io [2022-10-17 10:56:37,369 INFO L138 BoogieDeclarations]: Found implementation of procedure ims_pcu_start_io [2022-10-17 10:56:37,370 INFO L130 BoogieDeclarations]: Found specification of procedure init_completion [2022-10-17 10:56:37,370 INFO L138 BoogieDeclarations]: Found implementation of procedure init_completion [2022-10-17 10:56:37,370 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-10-17 10:56:37,371 INFO L130 BoogieDeclarations]: Found specification of procedure usb_to_input_id [2022-10-17 10:56:37,371 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_to_input_id [2022-10-17 10:56:37,371 INFO L130 BoogieDeclarations]: Found specification of procedure input_sync [2022-10-17 10:56:37,371 INFO L138 BoogieDeclarations]: Found implementation of procedure input_sync [2022-10-17 10:56:37,372 INFO L130 BoogieDeclarations]: Found specification of procedure ims_pcu_send_cmd_chunk [2022-10-17 10:56:37,372 INFO L138 BoogieDeclarations]: Found implementation of procedure ims_pcu_send_cmd_chunk [2022-10-17 10:56:37,373 INFO L130 BoogieDeclarations]: Found specification of procedure kstrtoint [2022-10-17 10:56:37,376 INFO L138 BoogieDeclarations]: Found implementation of procedure kstrtoint [2022-10-17 10:56:37,377 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-10-17 10:56:37,377 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-10-17 10:56:37,377 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-10-17 10:56:37,378 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_get_intfdata_2 [2022-10-17 10:56:37,379 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_get_intfdata_2 [2022-10-17 10:56:37,381 INFO L130 BoogieDeclarations]: Found specification of procedure input_register_device [2022-10-17 10:56:37,381 INFO L138 BoogieDeclarations]: Found implementation of procedure input_register_device [2022-10-17 10:56:37,381 INFO L130 BoogieDeclarations]: Found specification of procedure ims_pcu_line_setup [2022-10-17 10:56:37,387 INFO L138 BoogieDeclarations]: Found implementation of procedure ims_pcu_line_setup [2022-10-17 10:56:37,388 INFO L130 BoogieDeclarations]: Found specification of procedure complete [2022-10-17 10:56:37,388 INFO L138 BoogieDeclarations]: Found implementation of procedure complete [2022-10-17 10:56:37,388 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-17 10:56:37,388 INFO L130 BoogieDeclarations]: Found specification of procedure ims_pcu_stop_io [2022-10-17 10:56:37,388 INFO L138 BoogieDeclarations]: Found implementation of procedure ims_pcu_stop_io [2022-10-17 10:56:37,389 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-10-17 10:56:37,389 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-10-17 10:56:37,389 INFO L130 BoogieDeclarations]: Found specification of procedure ims_pcu_byte_needs_escape [2022-10-17 10:56:37,389 INFO L138 BoogieDeclarations]: Found implementation of procedure ims_pcu_byte_needs_escape [2022-10-17 10:56:37,389 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-10-17 10:56:37,390 INFO L130 BoogieDeclarations]: Found specification of procedure input_set_abs_params [2022-10-17 10:56:37,390 INFO L138 BoogieDeclarations]: Found implementation of procedure input_set_abs_params [2022-10-17 10:56:37,390 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-10-17 10:56:37,390 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-10-17 10:56:37,390 INFO L130 BoogieDeclarations]: Found specification of procedure __set_bit [2022-10-17 10:56:37,391 INFO L138 BoogieDeclarations]: Found implementation of procedure __set_bit [2022-10-17 10:56:37,391 INFO L130 BoogieDeclarations]: Found specification of procedure usb_alloc_coherent [2022-10-17 10:56:37,391 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_alloc_coherent [2022-10-17 10:56:37,391 INFO L130 BoogieDeclarations]: Found specification of procedure usb_control_msg [2022-10-17 10:56:37,391 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_control_msg [2022-10-17 10:56:37,392 INFO L130 BoogieDeclarations]: Found specification of procedure ihex_validate_fw [2022-10-17 10:56:37,392 INFO L138 BoogieDeclarations]: Found implementation of procedure ihex_validate_fw [2022-10-17 10:56:37,392 INFO L130 BoogieDeclarations]: Found specification of procedure ims_pcu_irq [2022-10-17 10:56:37,392 INFO L138 BoogieDeclarations]: Found implementation of procedure ims_pcu_irq [2022-10-17 10:56:37,392 INFO L130 BoogieDeclarations]: Found specification of procedure input_unregister_device [2022-10-17 10:56:37,393 INFO L138 BoogieDeclarations]: Found implementation of procedure input_unregister_device [2022-10-17 10:56:37,393 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_urb [2022-10-17 10:56:37,393 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_urb [2022-10-17 10:56:37,393 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-17 10:56:37,393 INFO L130 BoogieDeclarations]: Found specification of procedure ims_pcu_disconnect [2022-10-17 10:56:37,394 INFO L138 BoogieDeclarations]: Found implementation of procedure ims_pcu_disconnect [2022-10-17 10:56:37,394 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-17 10:56:37,394 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-17 10:56:38,200 INFO L235 CfgBuilder]: Building ICFG [2022-10-17 10:56:38,204 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-17 10:56:38,343 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-10-17 10:56:40,014 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stop___0FINAL: assume true; [2022-10-17 10:56:42,043 INFO L276 CfgBuilder]: Performing block encoding [2022-10-17 10:56:42,074 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-17 10:56:42,074 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-10-17 10:56:42,080 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 10:56:42 BoogieIcfgContainer [2022-10-17 10:56:42,080 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-17 10:56:42,083 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-17 10:56:42,084 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-17 10:56:42,088 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-17 10:56:42,088 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.10 10:56:34" (1/3) ... [2022-10-17 10:56:42,090 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1a828917 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.10 10:56:42, skipping insertion in model container [2022-10-17 10:56:42,090 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:56:36" (2/3) ... [2022-10-17 10:56:42,090 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1a828917 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.10 10:56:42, skipping insertion in model container [2022-10-17 10:56:42,091 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 10:56:42" (3/3) ... [2022-10-17 10:56:42,092 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.12-rc1.tar.xz-144_2a-drivers--input--misc--ims-pcu.ko-entry_point.cil.out.i [2022-10-17 10:56:42,117 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-17 10:56:42,117 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-10-17 10:56:42,292 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-17 10:56:42,302 INFO L357 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, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@7df2214b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-17 10:56:42,302 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-10-17 10:56:42,315 INFO L276 IsEmpty]: Start isEmpty. Operand has 1168 states, 813 states have (on average 1.3444034440344403) internal successors, (1093), 846 states have internal predecessors, (1093), 283 states have call successors, (283), 72 states have call predecessors, (283), 70 states have return successors, (268), 267 states have call predecessors, (268), 268 states have call successors, (268) [2022-10-17 10:56:42,361 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2022-10-17 10:56:42,361 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 10:56:42,362 INFO L195 NwaCegarLoop]: trace histogram [24, 24, 24, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 10:56:42,362 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-10-17 10:56:42,370 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:56:42,371 INFO L85 PathProgramCache]: Analyzing trace with hash 1340860104, now seen corresponding path program 1 times [2022-10-17 10:56:42,382 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:56:42,384 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1452092604] [2022-10-17 10:56:42,385 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:56:42,386 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:56:42,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:56:43,465 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-17 10:56:43,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:56:43,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-10-17 10:56:43,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:56:43,501 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-17 10:56:43,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:56:43,514 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-10-17 10:56:43,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:56:43,529 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-10-17 10:56:43,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:56:43,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-10-17 10:56:43,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:56:43,552 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-10-17 10:56:43,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:56:43,571 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-10-17 10:56:43,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:56:43,583 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-10-17 10:56:43,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:56:43,596 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-10-17 10:56:43,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:56:43,625 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-10-17 10:56:43,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:56:43,724 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-10-17 10:56:43,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:56:43,743 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-10-17 10:56:43,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:56:43,762 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-10-17 10:56:43,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:56:43,788 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-10-17 10:56:43,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:56:43,803 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-10-17 10:56:43,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:56:43,820 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-10-17 10:56:43,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:56:43,833 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-10-17 10:56:43,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:56:43,844 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-10-17 10:56:43,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:56:43,857 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-10-17 10:56:43,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:56:43,868 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-10-17 10:56:43,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:56:43,883 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2022-10-17 10:56:43,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:56:43,893 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2022-10-17 10:56:43,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:56:43,906 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2022-10-17 10:56:43,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:56:43,933 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2022-10-17 10:56:43,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:56:43,958 INFO L134 CoverageAnalysis]: Checked inductivity of 1104 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1104 trivial. 0 not checked. [2022-10-17 10:56:43,958 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:56:43,959 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1452092604] [2022-10-17 10:56:43,960 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1452092604] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:56:43,960 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 10:56:43,961 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-17 10:56:43,967 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [364662748] [2022-10-17 10:56:43,968 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:56:43,976 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-17 10:56:43,978 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:56:44,018 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-17 10:56:44,019 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-10-17 10:56:44,025 INFO L87 Difference]: Start difference. First operand has 1168 states, 813 states have (on average 1.3444034440344403) internal successors, (1093), 846 states have internal predecessors, (1093), 283 states have call successors, (283), 72 states have call predecessors, (283), 70 states have return successors, (268), 267 states have call predecessors, (268), 268 states have call successors, (268) Second operand has 5 states, 5 states have (on average 10.8) internal successors, (54), 3 states have internal predecessors, (54), 2 states have call successors, (26), 3 states have call predecessors, (26), 1 states have return successors, (25), 1 states have call predecessors, (25), 1 states have call successors, (25) [2022-10-17 10:56:50,731 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 10:56:50,732 INFO L93 Difference]: Finished difference Result 3639 states and 5331 transitions. [2022-10-17 10:56:50,733 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-10-17 10:56:50,734 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 3 states have internal predecessors, (54), 2 states have call successors, (26), 3 states have call predecessors, (26), 1 states have return successors, (25), 1 states have call predecessors, (25), 1 states have call successors, (25) Word has length 174 [2022-10-17 10:56:50,735 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 10:56:50,775 INFO L225 Difference]: With dead ends: 3639 [2022-10-17 10:56:50,775 INFO L226 Difference]: Without dead ends: 2436 [2022-10-17 10:56:50,794 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-10-17 10:56:50,797 INFO L413 NwaCegarLoop]: 1768 mSDtfsCounter, 2409 mSDsluCounter, 2731 mSDsCounter, 0 mSdLazyCounter, 1931 mSolverCounterSat, 1431 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2581 SdHoareTripleChecker+Valid, 4499 SdHoareTripleChecker+Invalid, 3362 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1431 IncrementalHoareTripleChecker+Valid, 1931 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.0s IncrementalHoareTripleChecker+Time [2022-10-17 10:56:50,798 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2581 Valid, 4499 Invalid, 3362 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1431 Valid, 1931 Invalid, 0 Unknown, 0 Unchecked, 6.0s Time] [2022-10-17 10:56:50,821 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2436 states. [2022-10-17 10:56:51,027 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2436 to 2184. [2022-10-17 10:56:51,033 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2184 states, 1552 states have (on average 1.3324742268041236) internal successors, (2068), 1580 states have internal predecessors, (2068), 493 states have call successors, (493), 139 states have call predecessors, (493), 138 states have return successors, (488), 486 states have call predecessors, (488), 488 states have call successors, (488) [2022-10-17 10:56:51,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2184 states to 2184 states and 3049 transitions. [2022-10-17 10:56:51,057 INFO L78 Accepts]: Start accepts. Automaton has 2184 states and 3049 transitions. Word has length 174 [2022-10-17 10:56:51,058 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 10:56:51,058 INFO L495 AbstractCegarLoop]: Abstraction has 2184 states and 3049 transitions. [2022-10-17 10:56:51,059 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 3 states have internal predecessors, (54), 2 states have call successors, (26), 3 states have call predecessors, (26), 1 states have return successors, (25), 1 states have call predecessors, (25), 1 states have call successors, (25) [2022-10-17 10:56:51,059 INFO L276 IsEmpty]: Start isEmpty. Operand 2184 states and 3049 transitions. [2022-10-17 10:56:51,064 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2022-10-17 10:56:51,064 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 10:56:51,065 INFO L195 NwaCegarLoop]: trace histogram [25, 25, 25, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 10:56:51,065 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-17 10:56:51,065 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-10-17 10:56:51,065 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:56:51,066 INFO L85 PathProgramCache]: Analyzing trace with hash -741605332, now seen corresponding path program 1 times [2022-10-17 10:56:51,066 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:56:51,066 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1258247694] [2022-10-17 10:56:51,066 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:56:51,066 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:56:51,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:56:51,870 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-17 10:56:51,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:56:51,883 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-10-17 10:56:51,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:56:51,896 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-17 10:56:51,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:56:51,909 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-10-17 10:56:51,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:56:51,921 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-10-17 10:56:51,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:56:51,933 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-10-17 10:56:51,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:56:51,946 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-10-17 10:56:51,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:56:51,959 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-10-17 10:56:51,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:56:51,972 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-10-17 10:56:51,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:56:51,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-10-17 10:56:51,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:56:51,996 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-10-17 10:56:52,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:56:52,009 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-10-17 10:56:52,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:56:52,022 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-10-17 10:56:52,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:56:52,036 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-10-17 10:56:52,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:56:52,051 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-10-17 10:56:52,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:56:52,066 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-10-17 10:56:52,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:56:52,081 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-10-17 10:56:52,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:56:52,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-10-17 10:56:52,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:56:52,109 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-10-17 10:56:52,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:56:52,123 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-10-17 10:56:52,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:56:52,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-10-17 10:56:52,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:56:52,151 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2022-10-17 10:56:52,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:56:52,166 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2022-10-17 10:56:52,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:56:52,181 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2022-10-17 10:56:52,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:56:52,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2022-10-17 10:56:52,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:56:52,221 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2022-10-17 10:56:52,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:56:52,238 INFO L134 CoverageAnalysis]: Checked inductivity of 1200 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1200 trivial. 0 not checked. [2022-10-17 10:56:52,238 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:56:52,238 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1258247694] [2022-10-17 10:56:52,238 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1258247694] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:56:52,239 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 10:56:52,239 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-17 10:56:52,239 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [493140131] [2022-10-17 10:56:52,239 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:56:52,241 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-17 10:56:52,241 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:56:52,242 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-17 10:56:52,242 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-10-17 10:56:52,243 INFO L87 Difference]: Start difference. First operand 2184 states and 3049 transitions. Second operand has 5 states, 5 states have (on average 11.8) internal successors, (59), 3 states have internal predecessors, (59), 2 states have call successors, (27), 3 states have call predecessors, (27), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) [2022-10-17 10:56:59,834 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 10:56:59,834 INFO L93 Difference]: Finished difference Result 6949 states and 10117 transitions. [2022-10-17 10:56:59,835 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-10-17 10:56:59,835 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 3 states have internal predecessors, (59), 2 states have call successors, (27), 3 states have call predecessors, (27), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) Word has length 184 [2022-10-17 10:56:59,836 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 10:56:59,883 INFO L225 Difference]: With dead ends: 6949 [2022-10-17 10:56:59,883 INFO L226 Difference]: Without dead ends: 4818 [2022-10-17 10:56:59,897 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-10-17 10:56:59,899 INFO L413 NwaCegarLoop]: 1964 mSDtfsCounter, 2451 mSDsluCounter, 2831 mSDsCounter, 0 mSdLazyCounter, 2040 mSolverCounterSat, 1352 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2617 SdHoareTripleChecker+Valid, 4795 SdHoareTripleChecker+Invalid, 3392 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1352 IncrementalHoareTripleChecker+Valid, 2040 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.0s IncrementalHoareTripleChecker+Time [2022-10-17 10:56:59,899 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2617 Valid, 4795 Invalid, 3392 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1352 Valid, 2040 Invalid, 0 Unknown, 0 Unchecked, 7.0s Time] [2022-10-17 10:56:59,909 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4818 states. [2022-10-17 10:57:00,182 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4818 to 4364. [2022-10-17 10:57:00,194 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4364 states, 3113 states have (on average 1.332155477031802) internal successors, (4147), 3165 states have internal predecessors, (4147), 962 states have call successors, (962), 277 states have call predecessors, (962), 288 states have return successors, (1029), 963 states have call predecessors, (1029), 957 states have call successors, (1029) [2022-10-17 10:57:00,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4364 states to 4364 states and 6138 transitions. [2022-10-17 10:57:00,236 INFO L78 Accepts]: Start accepts. Automaton has 4364 states and 6138 transitions. Word has length 184 [2022-10-17 10:57:00,237 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 10:57:00,237 INFO L495 AbstractCegarLoop]: Abstraction has 4364 states and 6138 transitions. [2022-10-17 10:57:00,237 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 3 states have internal predecessors, (59), 2 states have call successors, (27), 3 states have call predecessors, (27), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) [2022-10-17 10:57:00,237 INFO L276 IsEmpty]: Start isEmpty. Operand 4364 states and 6138 transitions. [2022-10-17 10:57:00,242 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2022-10-17 10:57:00,242 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 10:57:00,242 INFO L195 NwaCegarLoop]: trace histogram [25, 25, 25, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 10:57:00,242 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-10-17 10:57:00,243 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-10-17 10:57:00,243 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:57:00,243 INFO L85 PathProgramCache]: Analyzing trace with hash -1515497706, now seen corresponding path program 1 times [2022-10-17 10:57:00,243 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:57:00,244 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [369307737] [2022-10-17 10:57:00,244 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:57:00,244 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:57:00,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat