./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--net--wireless--prism54--prism54.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version aef121e0 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_371a3afc-a11d-4fa9-8553-1e65a8f2568a/bin/uautomizer-w2VwFs6gM0/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_371a3afc-a11d-4fa9-8553-1e65a8f2568a/bin/uautomizer-w2VwFs6gM0/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_371a3afc-a11d-4fa9-8553-1e65a8f2568a/bin/uautomizer-w2VwFs6gM0/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_371a3afc-a11d-4fa9-8553-1e65a8f2568a/bin/uautomizer-w2VwFs6gM0/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--wireless--prism54--prism54.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_371a3afc-a11d-4fa9-8553-1e65a8f2568a/bin/uautomizer-w2VwFs6gM0/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_371a3afc-a11d-4fa9-8553-1e65a8f2568a/bin/uautomizer-w2VwFs6gM0 --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 039eab12e50993f4fa37adc6de2fecb3561458fa83d70d097739d1ded7d4af34 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-aef121e [2021-11-22 14:30:53,088 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-22 14:30:53,090 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-22 14:30:53,128 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-22 14:30:53,129 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-22 14:30:53,130 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-22 14:30:53,132 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-22 14:30:53,134 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-22 14:30:53,137 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-22 14:30:53,138 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-22 14:30:53,139 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-22 14:30:53,140 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-22 14:30:53,141 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-22 14:30:53,142 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-22 14:30:53,144 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-22 14:30:53,145 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-22 14:30:53,146 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-22 14:30:53,147 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-22 14:30:53,150 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-22 14:30:53,152 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-22 14:30:53,154 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-22 14:30:53,156 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-22 14:30:53,158 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-22 14:30:53,159 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-22 14:30:53,163 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-22 14:30:53,163 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-22 14:30:53,164 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-22 14:30:53,165 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-22 14:30:53,165 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-22 14:30:53,167 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-22 14:30:53,167 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-22 14:30:53,168 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-22 14:30:53,169 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-22 14:30:53,170 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-22 14:30:53,171 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-22 14:30:53,171 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-22 14:30:53,172 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-22 14:30:53,173 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-22 14:30:53,173 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-22 14:30:53,174 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-22 14:30:53,175 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-22 14:30:53,176 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_371a3afc-a11d-4fa9-8553-1e65a8f2568a/bin/uautomizer-w2VwFs6gM0/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-22 14:30:53,201 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-22 14:30:53,202 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-22 14:30:53,202 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-22 14:30:53,203 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-22 14:30:53,204 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-22 14:30:53,204 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-22 14:30:53,205 INFO L138 SettingsManager]: * Use SBE=true [2021-11-22 14:30:53,205 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-22 14:30:53,206 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-22 14:30:53,206 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-22 14:30:53,206 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-22 14:30:53,207 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-22 14:30:53,207 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-22 14:30:53,208 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-22 14:30:53,208 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-22 14:30:53,208 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-22 14:30:53,209 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-22 14:30:53,209 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-22 14:30:53,209 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-22 14:30:53,210 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-22 14:30:53,210 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-22 14:30:53,211 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-22 14:30:53,211 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-22 14:30:53,211 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-22 14:30:53,212 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-22 14:30:53,212 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-22 14:30:53,213 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-22 14:30:53,213 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-22 14:30:53,213 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-22 14:30:53,214 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_371a3afc-a11d-4fa9-8553-1e65a8f2568a/bin/uautomizer-w2VwFs6gM0/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_371a3afc-a11d-4fa9-8553-1e65a8f2568a/bin/uautomizer-w2VwFs6gM0 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 039eab12e50993f4fa37adc6de2fecb3561458fa83d70d097739d1ded7d4af34 [2021-11-22 14:30:53,486 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-22 14:30:53,514 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-22 14:30:53,518 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-22 14:30:53,519 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-22 14:30:53,521 INFO L275 PluginConnector]: CDTParser initialized [2021-11-22 14:30:53,523 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_371a3afc-a11d-4fa9-8553-1e65a8f2568a/bin/uautomizer-w2VwFs6gM0/../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--wireless--prism54--prism54.ko-entry_point.cil.out.i [2021-11-22 14:30:53,592 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_371a3afc-a11d-4fa9-8553-1e65a8f2568a/bin/uautomizer-w2VwFs6gM0/data/adaa1966c/85b71b2db26f44a2a6702db2369ac8a4/FLAG1a55db2f7 [2021-11-22 14:30:54,661 INFO L306 CDTParser]: Found 1 translation units. [2021-11-22 14:30:54,662 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_371a3afc-a11d-4fa9-8553-1e65a8f2568a/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--wireless--prism54--prism54.ko-entry_point.cil.out.i [2021-11-22 14:30:54,732 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_371a3afc-a11d-4fa9-8553-1e65a8f2568a/bin/uautomizer-w2VwFs6gM0/data/adaa1966c/85b71b2db26f44a2a6702db2369ac8a4/FLAG1a55db2f7 [2021-11-22 14:30:54,934 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_371a3afc-a11d-4fa9-8553-1e65a8f2568a/bin/uautomizer-w2VwFs6gM0/data/adaa1966c/85b71b2db26f44a2a6702db2369ac8a4 [2021-11-22 14:30:54,937 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-22 14:30:54,939 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-22 14:30:54,941 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-22 14:30:54,941 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-22 14:30:54,944 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-22 14:30:54,946 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 02:30:54" (1/1) ... [2021-11-22 14:30:54,947 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@58531fe9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:30:54, skipping insertion in model container [2021-11-22 14:30:54,947 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 02:30:54" (1/1) ... [2021-11-22 14:30:54,954 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-22 14:30:55,136 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-22 14:31:00,026 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_371a3afc-a11d-4fa9-8553-1e65a8f2568a/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--wireless--prism54--prism54.ko-entry_point.cil.out.i[485718,485731] [2021-11-22 14:31:00,141 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-22 14:31:00,317 INFO L203 MainTranslator]: Completed pre-run [2021-11-22 14:31:00,925 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_371a3afc-a11d-4fa9-8553-1e65a8f2568a/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--wireless--prism54--prism54.ko-entry_point.cil.out.i[485718,485731] [2021-11-22 14:31:00,934 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-22 14:31:01,292 INFO L208 MainTranslator]: Completed translation [2021-11-22 14:31:01,293 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:31:01 WrapperNode [2021-11-22 14:31:01,293 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-22 14:31:01,296 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-22 14:31:01,296 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-22 14:31:01,296 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-22 14:31:01,304 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:31:01" (1/1) ... [2021-11-22 14:31:01,548 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:31:01" (1/1) ... [2021-11-22 14:31:02,852 INFO L137 Inliner]: procedures = 526, calls = 6245, calls flagged for inlining = 1257, calls inlined = 3786, statements flattened = 46886 [2021-11-22 14:31:02,852 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-22 14:31:02,854 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-22 14:31:02,854 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-22 14:31:02,854 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-22 14:31:02,877 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:31:01" (1/1) ... [2021-11-22 14:31:02,878 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:31:01" (1/1) ... [2021-11-22 14:31:03,229 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:31:01" (1/1) ... [2021-11-22 14:31:03,232 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:31:01" (1/1) ... [2021-11-22 14:31:04,266 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:31:01" (1/1) ... [2021-11-22 14:31:04,422 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:31:01" (1/1) ... [2021-11-22 14:31:04,529 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:31:01" (1/1) ... [2021-11-22 14:31:04,755 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-22 14:31:04,757 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-22 14:31:04,758 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-22 14:31:04,758 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-22 14:31:04,759 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:31:01" (1/1) ... [2021-11-22 14:31:04,767 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-22 14:31:04,777 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_371a3afc-a11d-4fa9-8553-1e65a8f2568a/bin/uautomizer-w2VwFs6gM0/z3 [2021-11-22 14:31:04,792 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_371a3afc-a11d-4fa9-8553-1e65a8f2568a/bin/uautomizer-w2VwFs6gM0/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-22 14:31:04,823 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_371a3afc-a11d-4fa9-8553-1e65a8f2568a/bin/uautomizer-w2VwFs6gM0/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-22 14:31:04,843 INFO L130 BoogieDeclarations]: Found specification of procedure mgt_le_to_cpu [2021-11-22 14:31:04,843 INFO L138 BoogieDeclarations]: Found implementation of procedure mgt_le_to_cpu [2021-11-22 14:31:04,844 INFO L130 BoogieDeclarations]: Found specification of procedure __xchg_wrong_size [2021-11-22 14:31:04,844 INFO L130 BoogieDeclarations]: Found specification of procedure mgt_cpu_to_le [2021-11-22 14:31:04,844 INFO L138 BoogieDeclarations]: Found implementation of procedure mgt_cpu_to_le [2021-11-22 14:31:04,845 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-22 14:31:04,845 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-22 14:31:04,845 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-22 14:31:04,845 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-22 14:31:04,845 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-22 14:31:04,845 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_calloc [2021-11-22 14:31:04,846 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-22 14:31:04,846 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-22 14:31:04,846 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-11-22 14:31:04,846 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-22 14:31:04,846 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-22 14:31:04,846 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-22 14:31:04,847 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-22 14:31:04,847 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-22 14:31:04,847 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-22 14:31:04,847 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-22 14:31:04,847 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-22 14:31:04,848 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-22 14:31:05,818 INFO L236 CfgBuilder]: Building ICFG [2021-11-22 14:31:05,820 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-22 14:31:32,965 INFO L277 CfgBuilder]: Performing block encoding [2021-11-22 14:31:33,021 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-22 14:31:33,021 INFO L301 CfgBuilder]: Removed 3 assume(true) statements. [2021-11-22 14:31:33,032 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 02:31:33 BoogieIcfgContainer [2021-11-22 14:31:33,032 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-22 14:31:33,034 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-22 14:31:33,034 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-22 14:31:33,038 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-22 14:31:33,038 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 02:30:54" (1/3) ... [2021-11-22 14:31:33,039 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4fee427 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 02:31:33, skipping insertion in model container [2021-11-22 14:31:33,039 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:31:01" (2/3) ... [2021-11-22 14:31:33,040 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4fee427 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 02:31:33, skipping insertion in model container [2021-11-22 14:31:33,040 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 02:31:33" (3/3) ... [2021-11-22 14:31:33,041 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-43_2a-drivers--net--wireless--prism54--prism54.ko-entry_point.cil.out.i [2021-11-22 14:31:33,047 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-22 14:31:33,047 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 40 error locations. [2021-11-22 14:31:33,126 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-22 14:31:33,134 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 [2021-11-22 14:31:33,134 INFO L340 AbstractCegarLoop]: Starting to check reachability of 40 error locations. [2021-11-22 14:31:33,283 INFO L276 IsEmpty]: Start isEmpty. Operand has 8705 states, 8642 states have (on average 1.3474890071742651) internal successors, (11645), 8682 states have internal predecessors, (11645), 20 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2021-11-22 14:31:33,304 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-11-22 14:31:33,304 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 14:31:33,305 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] [2021-11-22 14:31:33,305 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 37 more)] === [2021-11-22 14:31:33,310 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 14:31:33,311 INFO L85 PathProgramCache]: Analyzing trace with hash -343299691, now seen corresponding path program 1 times [2021-11-22 14:31:33,320 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 14:31:33,321 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [178697533] [2021-11-22 14:31:33,321 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 14:31:33,322 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 14:31:33,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 14:31:34,270 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 14:31:34,271 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 14:31:34,271 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [178697533] [2021-11-22 14:31:34,272 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [178697533] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 14:31:34,272 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 14:31:34,272 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-22 14:31:34,274 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [428525087] [2021-11-22 14:31:34,275 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 14:31:34,279 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-22 14:31:34,280 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 14:31:34,318 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-22 14:31:34,320 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-22 14:31:34,345 INFO L87 Difference]: Start difference. First operand has 8705 states, 8642 states have (on average 1.3474890071742651) internal successors, (11645), 8682 states have internal predecessors, (11645), 20 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) Second operand has 2 states, 2 states have (on average 23.0) internal successors, (46), 2 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 14:31:34,830 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 14:31:34,831 INFO L93 Difference]: Finished difference Result 17366 states and 23325 transitions. [2021-11-22 14:31:34,832 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-22 14:31:34,833 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 23.0) internal successors, (46), 2 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 46 [2021-11-22 14:31:34,834 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 14:31:34,904 INFO L225 Difference]: With dead ends: 17366 [2021-11-22 14:31:34,905 INFO L226 Difference]: Without dead ends: 8118 [2021-11-22 14:31:34,934 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 [2021-11-22 14:31:34,939 INFO L933 BasicCegarLoop]: 11480 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, 11480 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-22 14:31:34,942 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 11480 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-22 14:31:34,981 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8118 states. [2021-11-22 14:31:35,276 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8118 to 8118. [2021-11-22 14:31:35,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8118 states, 8056 states have (on average 1.2895978152929493) internal successors, (10389), 8095 states have internal predecessors, (10389), 20 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2021-11-22 14:31:35,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8118 states to 8118 states and 10429 transitions. [2021-11-22 14:31:35,356 INFO L78 Accepts]: Start accepts. Automaton has 8118 states and 10429 transitions. Word has length 46 [2021-11-22 14:31:35,356 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 14:31:35,356 INFO L470 AbstractCegarLoop]: Abstraction has 8118 states and 10429 transitions. [2021-11-22 14:31:35,357 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 23.0) internal successors, (46), 2 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 14:31:35,357 INFO L276 IsEmpty]: Start isEmpty. Operand 8118 states and 10429 transitions. [2021-11-22 14:31:35,361 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-11-22 14:31:35,362 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 14:31:35,362 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] [2021-11-22 14:31:35,362 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-22 14:31:35,363 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 37 more)] === [2021-11-22 14:31:35,364 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 14:31:35,364 INFO L85 PathProgramCache]: Analyzing trace with hash -1100144359, now seen corresponding path program 1 times [2021-11-22 14:31:35,364 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 14:31:35,364 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1591684308] [2021-11-22 14:31:35,365 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 14:31:35,365 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 14:31:35,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 14:31:35,928 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 14:31:35,929 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 14:31:35,929 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1591684308] [2021-11-22 14:31:35,929 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1591684308] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 14:31:35,930 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 14:31:35,930 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-22 14:31:35,930 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1191537154] [2021-11-22 14:31:35,930 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 14:31:35,932 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-22 14:31:35,932 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 14:31:35,933 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-22 14:31:35,933 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-22 14:31:35,933 INFO L87 Difference]: Start difference. First operand 8118 states and 10429 transitions. Second operand has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 14:31:36,975 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 14:31:36,976 INFO L93 Difference]: Finished difference Result 22042 states and 28305 transitions. [2021-11-22 14:31:36,977 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-22 14:31:36,977 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 46 [2021-11-22 14:31:36,978 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 14:31:37,062 INFO L225 Difference]: With dead ends: 22042 [2021-11-22 14:31:37,063 INFO L226 Difference]: Without dead ends: 13937 [2021-11-22 14:31:37,081 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 [2021-11-22 14:31:37,087 INFO L933 BasicCegarLoop]: 10441 mSDtfsCounter, 8140 mSDsluCounter, 9673 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8140 SdHoareTripleChecker+Valid, 20114 SdHoareTripleChecker+Invalid, 70 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-11-22 14:31:37,088 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8140 Valid, 20114 Invalid, 70 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [19 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-11-22 14:31:37,117 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13937 states. [2021-11-22 14:31:37,523 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13937 to 13653. [2021-11-22 14:31:37,555 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13653 states, 13577 states have (on average 1.2893864623996465) internal successors, (17506), 13617 states have internal predecessors, (17506), 33 states have call successors, (33), 3 states have call predecessors, (33), 3 states have return successors, (33), 32 states have call predecessors, (33), 33 states have call successors, (33) [2021-11-22 14:31:37,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13653 states to 13653 states and 17572 transitions. [2021-11-22 14:31:37,590 INFO L78 Accepts]: Start accepts. Automaton has 13653 states and 17572 transitions. Word has length 46 [2021-11-22 14:31:37,591 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 14:31:37,591 INFO L470 AbstractCegarLoop]: Abstraction has 13653 states and 17572 transitions. [2021-11-22 14:31:37,592 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 14:31:37,592 INFO L276 IsEmpty]: Start isEmpty. Operand 13653 states and 17572 transitions. [2021-11-22 14:31:37,600 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2021-11-22 14:31:37,600 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 14:31:37,601 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] [2021-11-22 14:31:37,601 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-22 14:31:37,601 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 37 more)] === [2021-11-22 14:31:37,602 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 14:31:37,602 INFO L85 PathProgramCache]: Analyzing trace with hash -891346071, now seen corresponding path program 1 times [2021-11-22 14:31:37,602 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 14:31:37,603 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [244765043] [2021-11-22 14:31:37,603 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 14:31:37,603 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 14:31:37,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 14:31:38,076 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 14:31:38,076 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 14:31:38,076 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [244765043] [2021-11-22 14:31:38,077 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [244765043] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 14:31:38,077 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 14:31:38,077 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-22 14:31:38,077 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1703905254] [2021-11-22 14:31:38,077 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 14:31:38,078 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-22 14:31:38,078 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 14:31:38,079 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-22 14:31:38,079 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-22 14:31:38,079 INFO L87 Difference]: Start difference. First operand 13653 states and 17572 transitions. Second operand has 4 states, 4 states have (on average 17.5) internal successors, (70), 3 states have internal predecessors, (70), 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) [2021-11-22 14:31:39,853 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 14:31:39,854 INFO L93 Difference]: Finished difference Result 56981 states and 73436 transitions. [2021-11-22 14:31:39,854 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-22 14:31:39,854 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.5) internal successors, (70), 3 states have internal predecessors, (70), 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 70 [2021-11-22 14:31:39,855 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 14:31:40,013 INFO L225 Difference]: With dead ends: 56981 [2021-11-22 14:31:40,014 INFO L226 Difference]: Without dead ends: 43341 [2021-11-22 14:31:40,045 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-22 14:31:40,049 INFO L933 BasicCegarLoop]: 24353 mSDtfsCounter, 17198 mSDsluCounter, 20971 mSDsCounter, 0 mSdLazyCounter, 87 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17216 SdHoareTripleChecker+Valid, 45324 SdHoareTripleChecker+Invalid, 125 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 87 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-22 14:31:40,053 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [17216 Valid, 45324 Invalid, 125 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [38 Valid, 87 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-22 14:31:40,119 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43341 states. [2021-11-22 14:31:41,096 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43341 to 22311. [2021-11-22 14:31:41,133 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22311 states, 22199 states have (on average 1.2917698995450246) internal successors, (28676), 22240 states have internal predecessors, (28676), 66 states have call successors, (66), 6 states have call predecessors, (66), 6 states have return successors, (66), 64 states have call predecessors, (66), 66 states have call successors, (66) [2021-11-22 14:31:41,206 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22311 states to 22311 states and 28808 transitions. [2021-11-22 14:31:41,207 INFO L78 Accepts]: Start accepts. Automaton has 22311 states and 28808 transitions. Word has length 70 [2021-11-22 14:31:41,208 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 14:31:41,208 INFO L470 AbstractCegarLoop]: Abstraction has 22311 states and 28808 transitions. [2021-11-22 14:31:41,208 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.5) internal successors, (70), 3 states have internal predecessors, (70), 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) [2021-11-22 14:31:41,209 INFO L276 IsEmpty]: Start isEmpty. Operand 22311 states and 28808 transitions. [2021-11-22 14:31:41,218 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2021-11-22 14:31:41,219 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 14:31:41,219 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] [2021-11-22 14:31:41,219 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-22 14:31:41,220 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 37 more)] === [2021-11-22 14:31:41,221 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 14:31:41,221 INFO L85 PathProgramCache]: Analyzing trace with hash 983081498, now seen corresponding path program 1 times [2021-11-22 14:31:41,222 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 14:31:41,222 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [872392960] [2021-11-22 14:31:41,222 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 14:31:41,222 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 14:31:41,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 14:31:41,800 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 14:31:41,801 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 14:31:41,801 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [872392960] [2021-11-22 14:31:41,801 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [872392960] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 14:31:41,802 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 14:31:41,802 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-22 14:31:41,802 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [93331379] [2021-11-22 14:31:41,802 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 14:31:41,803 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-22 14:31:41,803 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 14:31:41,804 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-22 14:31:41,804 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-22 14:31:41,804 INFO L87 Difference]: Start difference. First operand 22311 states and 28808 transitions. Second operand has 4 states, 4 states have (on average 17.75) internal successors, (71), 3 states have internal predecessors, (71), 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) [2021-11-22 14:31:44,453 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 14:31:44,454 INFO L93 Difference]: Finished difference Result 100113 states and 129378 transitions. [2021-11-22 14:31:44,454 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-22 14:31:44,454 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.75) internal successors, (71), 3 states have internal predecessors, (71), 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 71 [2021-11-22 14:31:44,455 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 14:31:44,682 INFO L225 Difference]: With dead ends: 100113 [2021-11-22 14:31:44,683 INFO L226 Difference]: Without dead ends: 77815 [2021-11-22 14:31:44,737 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-22 14:31:44,738 INFO L933 BasicCegarLoop]: 17602 mSDtfsCounter, 23940 mSDsluCounter, 20852 mSDsCounter, 0 mSdLazyCounter, 77 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23958 SdHoareTripleChecker+Valid, 38454 SdHoareTripleChecker+Invalid, 117 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 77 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-22 14:31:44,739 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [23958 Valid, 38454 Invalid, 117 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [40 Valid, 77 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-22 14:31:44,991 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77815 states. [2021-11-22 14:31:46,645 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77815 to 43307. [2021-11-22 14:31:46,698 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43307 states, 43123 states have (on average 1.2921178953226817) internal successors, (55720), 43166 states have internal predecessors, (55720), 132 states have call successors, (132), 12 states have call predecessors, (132), 12 states have return successors, (132), 128 states have call predecessors, (132), 132 states have call successors, (132) [2021-11-22 14:31:46,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43307 states to 43307 states and 55984 transitions. [2021-11-22 14:31:46,996 INFO L78 Accepts]: Start accepts. Automaton has 43307 states and 55984 transitions. Word has length 71 [2021-11-22 14:31:46,999 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 14:31:46,999 INFO L470 AbstractCegarLoop]: Abstraction has 43307 states and 55984 transitions. [2021-11-22 14:31:46,999 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.75) internal successors, (71), 3 states have internal predecessors, (71), 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) [2021-11-22 14:31:46,999 INFO L276 IsEmpty]: Start isEmpty. Operand 43307 states and 55984 transitions. [2021-11-22 14:31:47,009 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2021-11-22 14:31:47,009 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 14:31:47,010 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] [2021-11-22 14:31:47,010 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-22 14:31:47,010 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 37 more)] === [2021-11-22 14:31:47,020 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 14:31:47,022 INFO L85 PathProgramCache]: Analyzing trace with hash -1039203895, now seen corresponding path program 1 times [2021-11-22 14:31:47,022 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 14:31:47,022 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1840189761] [2021-11-22 14:31:47,023 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 14:31:47,023 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 14:31:47,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 14:31:47,473 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 14:31:47,473 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 14:31:47,474 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1840189761] [2021-11-22 14:31:47,474 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1840189761] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 14:31:47,474 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 14:31:47,474 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-22 14:31:47,474 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1575837295] [2021-11-22 14:31:47,475 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 14:31:47,476 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-22 14:31:47,476 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 14:31:47,477 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-22 14:31:47,477 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-22 14:31:47,477 INFO L87 Difference]: Start difference. First operand 43307 states and 55984 transitions. Second operand has 4 states, 4 states have (on average 18.0) internal successors, (72), 3 states have internal predecessors, (72), 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) [2021-11-22 14:31:51,353 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 14:31:51,353 INFO L93 Difference]: Finished difference Result 196215 states and 253824 transitions. [2021-11-22 14:31:51,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-22 14:31:51,354 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.0) internal successors, (72), 3 states have internal predecessors, (72), 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 72 [2021-11-22 14:31:51,354 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 14:31:51,847 INFO L225 Difference]: With dead ends: 196215 [2021-11-22 14:31:51,848 INFO L226 Difference]: Without dead ends: 152921 [2021-11-22 14:31:51,943 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-22 14:31:51,944 INFO L933 BasicCegarLoop]: 17597 mSDtfsCounter, 23950 mSDsluCounter, 20853 mSDsCounter, 0 mSdLazyCounter, 77 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23968 SdHoareTripleChecker+Valid, 38450 SdHoareTripleChecker+Invalid, 117 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 77 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-22 14:31:51,944 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [23968 Valid, 38450 Invalid, 117 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [40 Valid, 77 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-22 14:31:52,160 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 152921 states. [2021-11-22 14:31:55,345 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 152921 to 84083. [2021-11-22 14:31:55,424 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 84083 states, 83755 states have (on average 1.29238851411856) internal successors, (108244), 83802 states have internal predecessors, (108244), 264 states have call successors, (264), 24 states have call predecessors, (264), 24 states have return successors, (264), 256 states have call predecessors, (264), 264 states have call successors, (264) [2021-11-22 14:31:55,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84083 states to 84083 states and 108772 transitions. [2021-11-22 14:31:55,657 INFO L78 Accepts]: Start accepts. Automaton has 84083 states and 108772 transitions. Word has length 72 [2021-11-22 14:31:55,658 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 14:31:55,658 INFO L470 AbstractCegarLoop]: Abstraction has 84083 states and 108772 transitions. [2021-11-22 14:31:55,658 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.0) internal successors, (72), 3 states have internal predecessors, (72), 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) [2021-11-22 14:31:55,658 INFO L276 IsEmpty]: Start isEmpty. Operand 84083 states and 108772 transitions. [2021-11-22 14:31:55,666 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2021-11-22 14:31:55,666 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 14:31:55,667 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] [2021-11-22 14:31:55,667 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-22 14:31:55,667 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 37 more)] === [2021-11-22 14:31:55,668 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 14:31:55,668 INFO L85 PathProgramCache]: Analyzing trace with hash 694460474, now seen corresponding path program 1 times [2021-11-22 14:31:55,669 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 14:31:55,669 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [563202156] [2021-11-22 14:31:55,669 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 14:31:55,669 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 14:31:56,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 14:31:56,522 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 14:31:56,523 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 14:31:56,523 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [563202156] [2021-11-22 14:31:56,523 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [563202156] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 14:31:56,523 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 14:31:56,523 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-22 14:31:56,524 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [4880281] [2021-11-22 14:31:56,524 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 14:31:56,524 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-22 14:31:56,524 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 14:31:56,525 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-22 14:31:56,525 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-22 14:31:56,525 INFO L87 Difference]: Start difference. First operand 84083 states and 108772 transitions. Second operand has 4 states, 4 states have (on average 18.25) internal successors, (73), 3 states have internal predecessors, (73), 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) [2021-11-22 14:32:04,614 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 14:32:04,614 INFO L93 Difference]: Finished difference Result 384763 states and 498000 transitions. [2021-11-22 14:32:04,615 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-22 14:32:04,615 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.25) internal successors, (73), 3 states have internal predecessors, (73), 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 73 [2021-11-22 14:32:04,615 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 14:32:05,555 INFO L225 Difference]: With dead ends: 384763 [2021-11-22 14:32:05,556 INFO L226 Difference]: Without dead ends: 300693 [2021-11-22 14:32:05,732 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-22 14:32:05,735 INFO L933 BasicCegarLoop]: 17592 mSDtfsCounter, 23960 mSDsluCounter, 20853 mSDsCounter, 0 mSdLazyCounter, 77 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23978 SdHoareTripleChecker+Valid, 38445 SdHoareTripleChecker+Invalid, 117 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 77 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-22 14:32:05,736 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [23978 Valid, 38445 Invalid, 117 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [40 Valid, 77 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-22 14:32:06,170 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 300693 states.